НАНОЧАСТИЦЫ АНТИПИРЕНА ГИДРОКСИДА МАГНИЯ И СПОСОБ ИХ ПРОИЗВОДСТВА

FIELD: chemistry. SUBSTANCE: invention relates to chemical engineering. The first step of producing magnesium hydroxide fire retardant nanoparticles includes reacting aqueous magnesium chloride solution with an alkaline component at temperature not higher than 100°C and molar ratio of OH - : Mg ++ ions in the range of (1.9-2.1):1. The second step includes hydrothermal recrystallisation of the particles at temperature of 120-220°C, pressure of 0.18-2.3 MPa for 2-24 hours. The reaction mass is subjected to periodic hydraulic shocks with superheated steam at 160-240°C and pressure of 0.6-3.3 MPa. Magnesium hydroxide fire retardant nanoparticles are obtained, having a hexagonal lamellar structure and specific surface area of not more than 20 m 2 /g. The average diameter of secondary particles is not greater than 2 mcm. The diameter of 10% of the secondary particles is not greater than 0.8 mcm and the diameter o 90% of the secondary particles is not greater than 5 mcm. The longitudinal dimension of the secondary particles ranges from 150 to 900 nm and the thickness ranges from 15 to 150 nm. The nanoparticles can be surface-treated. EFFECT: invention enables to achieve more uniform distribution of magnesium hydroxide fire retardant particles in polymer materials without deterioration of mechanical properties thereof and technological effectiveness of processing. 20 cl, 8 dwg, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C01F 5/22 B82B 3/00 B82Y 99/00 C08K 3/22 C09K 21/02 (13) 2 561 379 C2 (2006.01) (2006.01) (2011.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013148190/05, 29.10.2013 (24) Дата начала отсчета срока действия патента: 29.10.2013 (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 (73) Патентообладатель(и): ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "КАУСТИК" (RU) R U Приоритет(ы): (22) Дата подачи заявки: 29.10.2013 (72) Автор(ы): Гордон Елена Петровна (RU), Коротченко Алла ...

СТАБИЛИЗИРОВАННАЯ НА ДЛИТЕЛЬНЫЙ ПЕРИОД ВЗВЕСЬ ДЛЯ НАНЕСЕНИЯ ПОКРЫТИЯ НА ЖЕЛЕЗНЫЙ МИНЕРАЛ И ТЕХНОЛОГИЯ ЕЕ ПРОИЗВОДСТВА

Изобретение может быть использовано для предотвращения сцепления друг с другом брикетов, частиц или окатышей, изготовленных их доломита, магнезита, железной руды при их высокотемпературной обработке. Взвесь содержит твердую фракцию в количестве приблизительно 52-61%, воду в количестве приблизительно 39-48%, не менее одного анионного полиэлектролита при концентрации по меньшей мере 25% сухой массы в количестве приблизительно 0,5-2,5% и клейкий состав при концентрации по меньшей мере 30% сухой массы в количестве приблизительно 0,5-5,0%. Вязкость взвеси приблизительно 500-1500 сП, рН более 10,5. В качестве твердой фракции взвесь содержит частицы со средним размером 1-2,5 мкм гидроксида или карбоната магния или гидроксида или карбоната магния и кальция в количестве 50-60 мас.%. Эквивалентное содержание оксида магния в твердой фракции составляет 34-48%, содержание хлорида - менее приблизительно 0,6 мас.%. Обеспечивается стабильность взвеси при использовании и хранении в течение по меньшей мере ...

УДОБНАЯ В ОБРАЩЕНИИ ИЗВЕСТКОВО-МАГНЕЗИАЛЬНАЯ СУСПЕНЗИЯ

Изобретение может быть использовано в неорганической химии. Водная известково-магнезиальная суспензия содержит твердые частицы, соответствующие общей формуле аСа(ОН)⋅bMg(ОН)⋅cMgO⋅dI, в которой a, b и с представляют собой массовые доли, сумма которых составляет от 90 до 100%, I представляет собой материал, который может содержать примеси, выбранные из материалов на основе SiO, AlO, FeO, MnO, РОSO, оксида кальция, СаСОи MgCO, a d составляет от 0 до 10 мас.%, в водной среде. Концентрация твердых частиц превышает или равна 200 г/кг. Известково-магнезиальная суспензия также содержит добавку, которая одновременно представляет собой средство, уменьшающее вязкость, и средство, замедляющее повышение вязкости. Указанная добавка представляет собой фосфонат или фосфоновую кислоту, которые содержатся в количестве по активной кислоте, превышающем или равном 0,05 мас.% и меньшем или равном 5 мас.% Изобретение позволяет повысить концентрацию твердых частиц в суспензии при уменьшении вязкости и замедлении ...

СТАБИЛИЗИРОВАННАЯ НА ДЛИТЕЛЬНЫЙ ПЕРИОД ВЗВЕСЬ ДЛЯ НАНЕСЕНИЯ ПОКРЫТИЯ НА ЖЕЛЕЗНЫЙ МИНЕРАЛ И ТЕХНОЛОГИЯ ЕЕ ПРОИЗВОДСТВА

... 1. Стабилизированная на длительный период взвесь, которую можно использовать для нанесения покрытия на брикеты, частицы, окатыши или порошок некоторых видов материалов во избежание сцепления их друг с другом и, таким образом, формирования агломератов во время обработки при высоких температурах: содержание твердой фракции приблизительно от 52-72%; содержание воды приблизительно от 28-48%; вязкость приблизительно 500-1500 сП; средний размер частиц приблизительно 1-3 мкм; массовое содержание гироксида щелочного, щелочно-земельного или другого металла, карбоната или силиката приблизительно от 50-70%; значение рН более 10,5; эквивалентное содержание гироксида щелочного, щелочноземельного или другого металла, карбоната или силиката от 34-48%; удельная масса от 1,4 до 1,6; не менее одного анионного полиэлектролита при концентрации, по крайней мере, 25% сухой массой приблизительно от 0,5 до 2,5% и клейкий состав, который улучшает сцепление взвеси с окатышами или брикетами в процессе технологии ...

CПOCOБ ПOЛУЧEHИЯ AKTИBHOГO OKCИДA MAГHИЯ

Способ получения гидроксида магния

Изобретение относится к способам получения гидроксида магния из хлормагниевых растворов и позволяет повысить скорость фильтрации суспензии. Согласно изобретению исходный хлормагниевый. раствор с содержанием MgCIa 25,25% обрабатывают моноэтаноламином при массовом соотношении 1:1,0-1,5. Полученную суспензию подвергают воздействию постоянного электрического поля, создаваемого между титановыми электродами, напряжением 20-60 В и силой тока 0,5- 1,25 А в течение 90-120 с. После электрообработки суспензию фильтруют. Скорость фильтрации 953,20-1560 кг/м ч. 1 табл.

Verfahren zur Herstellung von gut filtrierbarem, reinem Magnesiumhydroxyd hohen Feststoffgehaltes

Verfahren und Vorrichtung zum Ausfaellen eines leicht von der Mutterlauge zu trennenden Niederschlages

Preparing a source of magnesium

A method for preparing a relatively highly available source of magnesium comprises blending a first mixture with a slurry to form a second mixture, the first mixture and slurry both comprising magnesium oxide and magnesium hydroxide. The second mixture is subjected to a temperature of 125-250‹C to form a dry third mixture of magnesium oxide and magnesium hydroxide of moisture content not exceeding 5% by weight. The third mixture is suitable as an ingredient for an animal feed supplement or fertilizer.

STABILIZATION OF LIME MILK SUSPENSIONS

CALCIUMUND/ODER MAGNESIUMHYDROXID WITH HIGHER ACTIVITY AND ITS PREPARATION

PROCEDURE FOR THE PRODUCTION OF STABILIZED MAGNESIUM HYDROXIDE ON SUDSYREN

STABILIZED MAGNESIUM HYDROXIDE MIXING INTO A PASTE WITH

PROCEDURE FOR THE DESULPHURISATION OF EXHAUST GASES

An improved electrochemical cell arrangement and method for separating impurities

An electrochemical method for separating impurities from aqueous solutions, comprises the steps of circulating an aqueous feed solution containing an impurity ion to a cathode chamber of an electrochemical cell containing a cathode; circulating an acidic electrolyte solution to an anode chamber containing an anode; separating the anode chamber from the cathode chamber with a central chamber, to form a 3-chamber cell, having an anion exchange membrane forming a boundary between the cathode chamber and the central chamber, and a cation exchange membrane forming a boundary between the anode chamber and the central chamber; circulating or adding a chloride solution within or to the central chamber; applying a current across the anode and cathode to facilitate hydrogen ions generated at the anode to migrate through the cation exchange membrane into the central chamber, and chloride ions generated in the cathode chamber to migrate across the anion exchange membrane to the central chamber to form ...

Coated magnesium hydroxide particles produced by mill-drying

Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia

The present invention provides an integrated process for the recovery of sulphate of potash (SOP), ammonium sulphate and surface modified magnesium hydroxide and/or magnesium oxide utilizing kainite mixed salt and ammonia as the only consumable raw materials. The process involves treating kainite mixed salt with water to obtain solid schoenite and a schoenite end liquor. The latter is desulphated using CaCl ...

Handleable calco-magnesian suspension

A calco-magnesian aqueous suspension comprising solid particles of general formula a Ca(OH) ...

Heat deterioration resistant flame retardant, resin composition and molded articles

HIGH-ACTIVITY AND HIGH-DISPERSIBILITY MAGNESIUM HYDROXIDE AND PROCESS FOR THE PRODUCTION THEREOF

... of the disclosure A magnesium hydroxide having a BET specific surface area of 20 to 50 m2/g, a 50 percent diameter, as a secondary particle, of not more than 1.5 .mu.m and a 90 percent diameter, as a secondary particle, of not more than 4.0 .mu.m, and a process for the production of a magnesium hydroxide which comprises heating a basic magnesium chloride or nitrate represented by formula Mg(OH)2-xAx?mH2O wherein A represents Cl or NO3, x is in the range of 0 Подробнее

MAGNESIUM HYDROXIDE NANOPARTICLES, METHODS OF MAKING SAME AND COMPOSITIONS INCORPORATING SAME

Magnesium hydroxide nanoparticles are made from a magnesium compound that is reacted with an organic dispersing agent (e.g., a hydroxy acid) to form an intermediate magnesium compound. Magnesium hydroxide nanoparticles are formed from hydrolysis of the intermediate compound. The bonding between the organic dispersing agent and the magnesium during hydrolysis influences the size of the magnesium hydroxide nanoparticles formed therefrom. The magnesium hydroxide nanoparticles can be treated with an aliphatic compound (e.g., a monofunctional alcohol) to prevent aggregation of the nanoparticles during drying and/or to make the nanoparticles hydrophobic such that they can be evenly dispersed in a polymeric material. The magnesium hydroxide nanoparticles exhibit superior fire retarding properties in polymeric materials compared to known magnesium hydroxide particles.

COMPOSITION COMPRISING ONE OR MORE CALCIUM-MAGNESIUM COMPOUNDS IN THE FORM OF COMPACTS

Composition comprenant au moins un composé calco-magnésien répondant à la formule aCaCO3.bMgCO3.xCaO.yMgO.zCa(OH)2.tMg(OH)2.ul, dans laquelle I représente des impuretés, a, b, z, t et u étant des fractions massiques chacune = 0 et = 50%, x et y étant des fractions massiques chacune = 0 et = 100%, avec x + y = 50% en poids, par rapport au poids total dudit au moins un composé calco-magnésien, lequel est sous forme de particules, ladite composition présentant une teneur cumulée en calcium et magnésium sous forme d'oxydes supérieure ou égale à 20% en poids et étant sous forme de compacts, chaque compact étant formé desdites particules de composés calco-magnésiens compactées et mises en forme, lesdits compacts présentant un indice de Shatter test inférieur à 10 % permettant une très bonne résistance à la chute et une bonne résistance aux vieillissement, son procédé de fabrication et son utilisation.

MAGNESIUM RECOVERY METHOD AND MAGNESIUM RECOVERY APPARATUS

In this magnesium recovery method and this magnesium recovery apparatus, anodically electrolyzed water (7a) and cathodically electrolyzed water (7b) both generated by the electrolysis of seawater are separated from each other, an alkaline material is introduced into the anodically electrolyzed water to adjust the pH value of the anodically electrolyzed water, magnesium is allowed to precipitate in the cathodically electrolyzed water in the form of magnesium hydroxide and is then recovered, the pH-adjusted anodically electrolyzed water and the cathodically electrolyzed water after the fixing of a carbonate salt are joined together, and the joined solution is adjusted to the same pH value as that of seawater and is then discharged. In this manner, magnesium can be recovered from seawater while minimizing an environmental load.

MAGNESIUM RECOVERY METHOD AND MAGNESIUM RECOVERY APPARATUS

In this magnesium recovery method and this magnesium recovery apparatus, anodically electrolyzed water (7a) and cathodically electrolyzed water (7b) both generated by the electrolysis of seawater are separated from each other, an alkaline material is introduced into the anodically electrolyzed water to adjust the pH value of the anodically electrolyzed water, magnesium is allowed to precipitate in the cathodically electrolyzed water in the form of magnesium hydroxide and is then recovered, the pH-adjusted anodically electrolyzed water and the cathodically electrolyzed water after the fixing of a carbonate salt are joined together, and the joined solution is adjusted to the same pH value as that of seawater and is then discharged. In this manner, magnesium can be recovered from seawater while minimizing an environmental load.

METHOD FOR DESULFURIZING EXHAUST GAS

A method for desulfurization which comprises a desulfurization step of absorbing and removing sulfur oxides in an exhaust gas by a solution containing a Mgbased desulfurizing agent, an oxidation step of treating the treatment liquid with a gas containing oxygen, a double decomposition step of adding basic calcium compounds to the solution obtained in the oxidation step to carry out a reaction, a separation step of separating a slurry of a mixture of Mg(OH)2 and gypsum dihydrate obtained in the double decomposition step by a wet classifier, a step of returning a Mg(OH)2 slurry separated in the separation step to the desulfurization step, a step of treating a gypsum dihydrate slurry in the oxidation step to convert accompanying Mg(OH)2 into MgSO4, a sedimentation separation step of separating gypsum dihydrate, and a step of returning a supernatant liquid in the sedimentation separation step to the double decomposition step to treat the supernatant liquid; and a method for desulfurization ...

PROCESS FOR PRODUCING STABILIZED MAGNESIUM HYDROXYDE SLURRIES

Verfahren zum Hydrophobieren von feinverteilten anorganischen Verbindungen

AS WELL AS PROCEDURES FOR THE PRODUCTION OF MAGNESIUM OXIDE AND/OR ITS HYDRATISIERUNGSPRODUKTEN FROM CALCIUM CARBONATE.

COMPOSITION, INCLUDING CALCIUM-MAGNESIUM (ZANER) COMPOUND (IUM CHLORIDE) AS OF COMPACTED COMPOUNDS

BINDING OF CARBON DIOXIDE BY MEANS OF HYDRO KSIDA MAGNESIUM AND REGENERATION OF HYDRO KSIDA MAGNESIUM

poligalitnyiIMIKNO method of producing

MAGNESIUM AND MAGNESIUM MIXED COMPOUND AND PROCESS FOR PRODUCING THE SAME

표면 처리된 수산화 마그네슘, 이의 제조 방법 및 이를 포함하는 내연성 조성물

... 본 발명은 표면 처리된 수산화 마그네슘, 이의 제조 방법 및 이를 포함하는 내연성 조성물에 관한 것으로서, 상기 표면 처리된 수산화 마그네슘은 폴리에틸렌글리콜(polyethylene glycol) 관능기로 치환된 포스페이트(phosphate)를 포함하는 표면 처리제로 표면 처리된다.상기 표면 처리된 수산화 마그네슘은 표면에 소수성이 부여되어 고분자 화합물과의 친화성이 개선됨에 따라, 상기 고분자 화합물에의 분산성이 우수하며, 난연성 및 기계적 물성을 향상시킬 수 있다.

MAGNESIUM HYDROXIDE PARTICLES, PROCESS FOR PRODUCING THE SAME, AND RESIN COMPOSITION CONTAINING THE PARTICLES

Chemical regenerator, method for producing same, and chemical heat pump and operation method therefor

partìculas de hidróxido de magnésio; processo; formulação de polìmero de retardamento de chama; artigo moldado ou extrudado

produção de ácido carboxílico e co-produtos salinos

Method for converting nitrogen gas into ammonia and nitrate

The present invention relates to a method for converting nitrogen (N2) into nitrate and/or ammonia comprising the steps of compressing air and separating nitrogen (N2) and oxygen (O2) therefrom, and either reacting earth alkaline metal with oxygen to produce earth alkaline metal oxide, using the high temperatures obtained to react N2 and O2 to NO, converting the NO with O2 to NO2, followed by the reaction of NO2 with water to result in HNO3 and NO; or reacting the nitrogen obtained with earth alkaline metal to produce earth alkaline metal nitride and reacting thereof with water to result in earth alkaline metal hydroxide and ammonia.

MINUTE COMPOSITE INORGANIC POWDER AND USE THEREOF

A minute composite inorganic powder constituted of a hydroxyl-bearing particulate core made of magnesium hydroxide, porous silica, hydrotalcite or the like and a shell made of aluminum oxide or aluminum hydroxide covering the surface of the core, excellent in ink-fixing properties, and therefor useful as a filler for recording materials or synthetic papers permitting sharp image formation or printing.

Recovery of products from non-metallic products derived from aluminum dross

A process for recovering one of alumina hydrate, magnesium hydroxide and magnesium aluminate spinel (MgAl2O4) from aluminum dross wherein the dross is processed to a non-metallic product (NMP). The dross may contain fluxing salts which are removed in providing the NMP. The NMP may be derived from aluminum dross which does not contain fluxing salts sometimes referred to as white dross. The process comprises digesting the non-metallic product with an acid selected from the group consisting of sulfuric, hydrochloric, hydrofluoric and phosphoric acid or mixtures thereof to provide a slurry containing dissolved alumina, magnesia and a solid component, for example, containing magnesium aluminate spinel. Instead of an acid, a base such as sodium hydroxide may be used. The slurry is filtered to separate the solid component from the liquid containing dissolved constituents such as alumina and magnesia to recover the solid component.

Process for the preparation of high-purity magnesium hydroxide and magnesium oxide from magnesium alkoxides

There is provided a process for producing high-purity magnesium hydroxide by reaction of magnesium or reactive magnesium compounds with hydroxy compounds yielding magnesium alkoxides, followed by hydrolysis to form magnesium hydroxide, or a process for producing magnesium oxide by calcination of magnesium hydroxide.

Fine pore formation agent for porous resin film and composition containing the same for porous resin film

A fine pore formation agent for a porous resin film is provided which comprises inorganic particles satisfying (a) 0.1≦D50≦1.5 (μm) (D50: average particle diameter of particles in 50% cumulative total by weight from the larger particle side by micro-track FRA), (b) Da≦20 (μm) (Da: maximum particle diameter by micro-track FRA), (c) 3≦Sw≦60 (m 2 /g) (Sw: BET specific surface area measured by nitrogen adsorption method), (d) Ir≧1.0×10 5 (Ω·cm) (Ir: volume resistivity (Ω·cm). The fine pore formation agent for a porous resin film is capable of providing a resin composition giving a porous resin film useful in uses for electric parts such as capacitors and battery separators.

Rheology-modifying agents for slurries

The present disclosure relates to rheology-modifying agents and methods of modifying the rheology of slurries. A rheology-modifying agent may be added to a slurry. The rheology-modifying agent may include a polymer and the polymer may include at least three chemically different monomers. The slurry may include lime and/or magnesium hydroxide.

Zero discharge water desalination plant with minerals extraction integrated with natural gas combined cycle power generation

A desalination and minerals extraction process includes a desalination facility fluidly coupled to a minerals extraction facility. The desalination facility includes a nanofiltration membrane section producing a first tailings stream and a reverse osmosis membrane section producing a second tailings stream and a desalinated water outlet stream from an inlet feed stream. The extraction facility produces at least one mineral compound, an extraction tailings stream, and a second desalinated water outlet stream. At least one of the first tailings stream and the second tailings stream is fed into the extraction facility. In certain exemplary embodiments, a natural gas combined cycle power unit supplies power to at least one of the desalination facility and the extraction facility. In certain exemplary embodiments, the extraction tailings stream is recycled into the desalination facility and there are no extraction tailings streams or desalination tailings streams discharged into the environment ...

Process for producing magnesia

LOW VISCOSITY AQUEOUS DISPERSING COMPOSITION

PURPOSE: To obtain the titled composition stable even if preserved for a long period of time and extremely useful from a handling aspect, by together adding alkali metal silicate and alkali metal hydroxide to a conc. aqueous dispersion of magnesium hydroxide in an amount necessary for lowering viscosity. CONSTITUTION: An objective composition is obtained by together adding (A) alkali metal silicate such as sodium orthophophate and (B) hydroxide or mineral acid salt of an alkali metal such as sodium to a conc. 35W50wt% aqueous solution of magnesium hydroxide. Thus obtained conc. aqueous dispersion is low in viscosity and stable during long-term storage and extremely useful from a handling aspect. The total addition amount of the above-mentioned components (A), (B) is pref. 0.1W25pts.wt. of 100pts. of magnesium hydroxide and the adding ratio of (A), (B) is desirably 50:1W1:4 on a wt. basis. As the above-mentioned component (A), water glass represented by a specific compositional formula is ...

METAL HYDROXIDE SOL AND ITS PRODUCTION

PURPOSE: To obtain metal hydroxide sol having uniform and fine particle size by bringing an aqueous solution or alcohol solution of nitrate, sulfate, chloride or org. acid salt of metal into contact with strong-base negative ion-exchange resin to exchange anions. CONSTITUTION: An aqueous solution or alcohol solution of nitrate, sulfate, chloride or org. acid salt of metal selected from Mg, Co, Ni, Zn, Cu, Mn, Fe, and Cr is brought into contact with strong-base negative ion-exchange resin to exchange anions and to obtain metal hydroxide sol. The nitrate, sulfate, or chloride of metal is, for example, magnesium nitrate, cobalt nitrate, nickel sulfate, zinc sulfate, manganese chloride, and iron (II) chloride. The org. acid salt is, for example, acetate such as chromium acetate, formate such as magne sium formate. COPYRIGHT: (C)1991,JPO&Japio ...

ЧАСТИЦЫ ОКСИДА МАГНИЯ, ПОЛИМЕРНАЯ КОМПОЗИЦИЯ, КАУЧУКОВАЯ КОМПОЗИЦИЯ И ФОРМОВАННОЕ ИЗДЕЛИЕ

FIELD: chemistry. SUBSTANCE: invention relates to particles of magnesium oxide, polymer composition, rubber composition and moulded article. Average size of magnesium oxide particles according to invention is not more than 5 mcm, their BET specific surface area is 143–200 m 2 /g. Residue after sifting particles on a sieve with hole size 45 mcm is not more than 0.1 wt%. EFFECT: production of magnesium oxide particles, which have good dispersion capacity in a polymer or rubber, can operate in sufficiently as acid acceptor or inhibitor of premature polymerisation, without degradation, even after merging with polymer or rubber, of properties of corresponding materials. 9 cl, 2 dwg, 2 tbl, 26 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 611 510 C2 (51) МПК C01F 5/08 (2006.01) C01F 5/22 (2006.01) C08K 3/22 (2006.01) C08K 9/04 (2006.01) C08L 101/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014128560, 12.08.2013 (24) Дата начала отсчета срока действия патента: 12.08.2013 (72) Автор(ы): МАЦУИ Сеидзи (JP) (73) Патентообладатель(и): КОНОСИМА КЕМИКАЛ КО., ЛТД. (JP) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: EP 0370728 B1, 18.01.1995. WO Приоритет(ы): (30) Конвенционный приоритет: 2011040593 A1, 07.04. 2011. JP 05286713 A, 02.11.1993;. RU 2128626 C1, 10.04.1999. 25.03.2013 JP 2013-062896 (45) Опубликовано: 27.02.2017 Бюл. № 6 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.07.2014 (86) Заявка PCT: JP 2013/071755 (12.08.2013) (87) Публикация заявки PCT: 2 6 1 1 5 1 0 (43) Дата публикации заявки: 10.02.2016 Бюл. № 4 R U 27.02.2017 2 6 1 1 5 1 0 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ЧАСТИЦЫ ОКСИДА МАГНИЯ, ПОЛИМЕРНАЯ КОМПОЗИЦИЯ, КАУЧУКОВАЯ КОМПОЗИЦИЯ И ФОРМОВАННОЕ ИЗДЕЛИЕ (57) Формула изобретения 1. Частицы оксида магния, удовлетворяющие следующим условиям ...

СПОСОБ ПОЛУЧЕНИЯ НАНОМЕТРИЧЕСКОГО МОНОДИСПЕРСНОГО И СТАБИЛЬНОГО ГИДРОКСИДА МАГНИЯ И ПОЛУЧАЕМЫЙ ПРОДУКТ

FIELD: chemistry. ^ SUBSTANCE: invention relates to chemistry and can be used to produce nanometric monodispersed and stable Mg(OH)2 and products obtained therefrom. The method involves mixing aqueous solution of a magnesium salt and aqueous solution of an alkali, stabilisation of the mixed product by adding a diluent, maturation of the stabilised product, cleaning the matured product to obtain magnesium hydroxide particles. The aqueous solution of the magnesium salt contains a surfactant which is ethoxylate, and an organic acid. The aqueous alkaline solution contains an alkali selected from a group comprising sodium hydroxide, potassium hydroxide and ammonium solutions, and a dispersing agent selected from polyacrylate acid type substances or salts thereof. The diluent which is used to stabilise the product of the mixture contains water and the same dispersing agent as the one used in the alkaline solution. The diluent is added with constant agitation during the stabilisation process. During the maturation step, the stabilised mixture of the product undergoes mechanical and chemical treatment using ultrasound which preferably lies between 20 and 45 kHz. ^ EFFECT: invention enables to obtain magnesium hydroxide nanoparticles in high concentrations and products therefrom. ^ 15 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 415 811 (13) C2 (51) МПК C01F 5/22 (2006.01) B82B 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009116639/05, 03.04.2007 (24) Дата начала отсчета срока действия патента: 03.04.2007 C 2 (56) Список документов, цитированных в отчете о поиске: XIAOTANG LV et al, In situ synthesis of nanolamellas of hydrophobic magnesium hydroxide, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2007, Volume 296, Issues 1-3, p.97-103. SU 1318526 A1, 23.06.1987. RU 2069176 C1, 20.11.1996. WO 9212097 A1, 23.07.1992. US 5461101 A, 24.10.1995. CN 1361062 ...

Patent RU2018130066A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 130 066 A (51) МПК B02C 19/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018130066, 16.01.2017 (71) Заявитель(и): САКАЙ КЕМИКАЛ ИНДАСТРИ КО., ЛТД. (JP) Приоритет(ы): (30) Конвенционный приоритет: 21.01.2016 JP 2016-009803 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.08.2018 R U (43) Дата публикации заявки: 21.02.2020 Бюл. № 6 (72) Автор(ы): ЦУДА Коити (JP), ОКИТА Хиромаса (JP) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/126470 (27.07.2017) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ измельчения порошка для измельчения порошка посредством приведения воздуха под высоким давлением в столкновение с порошком, вводимым в герметично уплотненный измельчающий контейнер, и выведения измельченного порошка из измельчающего контейнера, причем способ содержит выполнение измельчения порошка при одновременном впрыскивании воздуха из футерованной внутренней поверхности измельчающего контейнера. 2. Устройство для измельчения порошка, содержащее герметично уплотненный измельчающий контейнер; механизм подачи порошка, имеющий подающий вход, открывающийся вовнутрь к измельчающему контейнеру, и подающий измельчаемый порошок к подающему входу; механизм измельчения порошка, расположенный у части под подающим входом в измельчающем контейнере для приведения воздуха под высоким давлением в столкновение с порошком, с обеспечением измельчения порошка; и сортировочное устройство, расположенное у части над подающим входом в измельчающем контейнере для просеивания измельченного порошка и выведения просеянного порошка из измельчающего контейнера, причем внутренняя стенка измельчающего контейнера покрыта пористым футеровочным материалом, и каждое отверстие футеровочного материала сообщается с устройством подачи воздуха через зазор между внутренней стенкой ...

СПОСОБ ИЗМЕЛЬЧЕНИЯ ПОРОШКА И УСТРОЙСТВО ДЛЯ ИЗМЕЛЬЧЕНИЯ ПОРОШКА

КОМПОЗИТНЫЙ ОГНЕСТОЙКИЙ МАТЕРИАЛ, ПОЛИМЕРНАЯ КОМПОЗИЦИЯ И ФОРМОВАННОЕ ИЗДЕЛИЕ

1. Композитный огнестойкий материал, содержащий(i) 100 масс.ч. частиц (A) гидроксида магния, у которых средняя толщина составляет от 10 до 100 нм, средняя ширина составляет 2,4 мкм или более, и среднее соотношение размеров частиц составляет от 20 до 120, и(ii) от 100 до 900 масс.ч. частиц (B) гидроксида магния, у которых средняя ширина составляет 1 мкм или менее, и среднее соотношение размеров частиц составляет менее чем 20.2. Полимерная композиция, содержащая 100 масс.ч. синтетического полимера и от 50 до 200 масс.ч. композитного огнестойкого материала по п. 1.3. Формованное изделие, изготовленное из полимерной композиции по п. 2.4. Огнестойкий электрический кабель, покрытый полимерной композицией по п. 2. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C09K 21/02 (13) 2014 103 241 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014103241/05, 09.04.2013 (71) Заявитель(и): КИОВА КЕМИКАЛ ИНДАСТРИ КО., ЛТД. (JP) Приоритет(ы): (30) Конвенционный приоритет: 10.04.2012 JP 2012-089441 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.01.2014 R U (43) Дата публикации заявки: 10.08.2015 Бюл. № 22 (72) Автор(ы): КУДО Дайсуке (JP), ООХОРИ Кохеи (JP), МАНАБЕ Хитоси (JP), МИЯТА Сигео (JP) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2013/154200 (17.10.2013) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Композитный огнестойкий материал, содержащий (i) 100 масс.ч. частиц (A) гидроксида магния, у которых средняя толщина составляет от 10 до 100 нм, средняя ширина составляет 2,4 мкм или более, и среднее соотношение размеров частиц составляет от 20 до 120, и (ii) от 100 до 900 масс.ч. частиц (B) гидроксида магния, у которых средняя ширина составляет 1 мкм или менее, и среднее соотношение размеров частиц составляет менее чем 20. 2. Полимерная композиция, содержащая 100 масс.ч. синтетического полимера и от ...

Способ получения оксида магния

Изобретение относитс  к способам получени  оксида магни  из хлормагниевых растворов и позвол ет повысить степень извлечени  магни , степень чистоты регенерированного раствора и интенсифицировать процесс. Способ осуществл ют следующим образом. Из хлормагниевых растворов обработкой моноэтаноламином (МЭА) осаждают гидроксид магни , осадок отдел ют фильтрацией, промывают и прокаливают с получением оксида магни . Магниевый раствор после отделени  осадки обрабатывают электрическим шелоком с целью регенерации моноэтаноламина по реакции RNH 2 . HCL+HCL+NAOH=RNH+NACL+H 2 O. Смесь далее подвергают разделению ректификацией при 111-126°С. При этом получают чистый МЭА и осадок NACL. Степень извлечени  магни  составл ет 95,7-97,5%, степень регенерации МЭМ - 95-99%. 1 з.п. ф-лы, 3 табл.

Способ получения гидроокиси магния

VERFAHREN ZUR HERSTELLUNG VON STABILISIERTEN MAGNESIUMHYDROXIDAUFSCHÄUMUNGEN

Feste Lösungen von Magnesiumhydroxid, Verfahren zur ihre Herstellung und ihre Anwendung

PLASTICS FILLERS

COATED MAGNESIUM HYDROXIDE

Improvements in or relating to the flocculation of colloidal suspensions of magnesia

Colloidal solutions or suspensions of magnesium hydroxide are flocculated by adding an aqueous extract obtained by extracting cocoa bean husk with water and steam at a pressure up to 70 lbs/square inch and preferably at 30 lbs./square inch. The extract, which contains tannin, protein and carbohydrate, may be added before, after or during the precipitation of magnesia from brines with lime or similar bases, to improve flocculation, facilitate filtration and washing and inhibit deposition of calcium sulphate and carbonate on the lime particles or the apparatus. The magnesia concentration should preferably not exceed 10gms./litre. The preferred dosage is 1 gallon of extract (made from 4/5 lbs. of husk) per 10,000 gallons of suspension for each gram per litre of magnesia. Specifications 587,053, [Group VI], and 587,054 are referred to.

Improvements in or relating to preparation of catalytic and adsorbent magnesia-containing materials

Magnesium metal or an alloy thereof is reacted with anhydrous methyl or ethyl alcohol, if desired in the presence of a catalyst such as mercury, mercuric chloride, aluminium chloride or iodine, and the alcoholate so formed treated with a substantially water-insoluble alcohol, if desired in admixture with a petroleum distillate. Suitable water-insoluble alcohols are n-, secondary- and isobutyl alcohols, pentanol-1, -2, and -3, 2-methyl butanol-3 and -4, hexanol-1, -2 and -3, methyl pentanols, di-methyl butanols, and heptyl- and hexyl alcohols. Suitable petroleum distillates are those boiling in the range 200-500 DEG F. Methyl or ethyl alcohol liberated is removed for reuse by distillation from the higher alcoholate formed.ALSO:Magnesia is prepared by reacting magnesium metal or an alloy thereof with anhydrous methyl or ethyl alcohol, if desired in the presence of a catalyst such as mercury, mercuric chloride, aluminium chloride or iodine, treating the alcoholate so formed with a substantially ...

Process for preparing light magnesium hydroxide

Light magnesium hydroxide in powder form is produced by mixing moist magnesium hydroxide precipitated from aqueous solution with a hydroxylic liquid, e.g. water and/or methyl, ethyl, isopropyl, &c., alcohol, mixture of alcohols or methylated spirits, heating the mixture to within say 50 DEG C. above or below the critical temperature, and reducing the pressure while avoiding a fall in temperature of more than 30 DEG C. The magnesium hydroxide employed may be obtained from solutions of magnesium salts and strong alkali or ammonia, or from sea water and lime or dolomitic lime. 10-30 parts hydroxylic liquid to one part magnesium hydroxide (reckoned on the dry material), are suitable. The process may be effected batch-wise, or the suspension may be pumped intermittently into a heated pressure vessel, and drawn intermittently into a second heated pressure vessel in which the pressure is released; alternatively, it may be pumped into a vessel or through a coil wherein it is heated to near the ...

Grate calcination of Mg(OH)2

A cake of magnesium hydroxide containing at least 58% by weight of solids is dried and/or calcined by heating in a travelling grate furnace (6) preferably utilising hot gases derived from a dead-burning kiln (3). ...

Procedure for the Hydrophobieren of purify-hasty oxides, silicates and basic carbonates of 2 - and trivalent metals

MAGNESIUMHYDROXID PARTICLE, PROCEDURE FOR THE PRODUCTION THE SAME AND RESIN THIS CONTAINING

MAGNESIUMHYDROXIDAUFSCHLAMMUNGEN

Magnesium recovery method and magnesium recovery apparatus

In this magnesium recovery method and this magnesium recovery apparatus, anodically electrolyzed water (7a) and cathodically electrolyzed water (7b) both generated by the electrolysis of seawater are separated from each other, an alkaline material is introduced into the anodically electrolyzed water to adjust the pH value of the anodically electrolyzed water, magnesium is allowed to precipitate in the cathodically electrolyzed water in the form of magnesium hydroxide and is then recovered, the pH-adjusted anodically electrolyzed water and the cathodically electrolyzed water after the fixing of a carbonate salt are joined together, and the joined solution is adjusted to the same pH value as that of seawater and is then discharged. In this manner, magnesium can be recovered from seawater while minimizing an environmental load.

Nanowire catalysts and methods for their use and preparation

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the nanowires are also disclosed.

Nanowire catalysts and methods for their use and preparation

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the nanowires are also disclosed.

METHOD FOR PREPARING LITHIUM CONCENTRATE FROM LITHIUM-BEARING NATURAL BRINES AND PROCESSING THEREOF INTO LITHIUM CHLORIDE OR LITHIUM CARBONATE

Method for preparing lithium concentrate from natural lithium-bearing brines was developed. The brine is first subjected to purification from the suspended solids, then filtered through a static layer of the granulated sorbent based on the LiCl-2Al(OH)3-mH20, where m=3-5, to obtain primary lithium concentrate. The process is carried out in sorption-desorption units consisting of 4 columns, two of which are in the process of lithium chloride from the brine, one column is in the process of washing the sorbent saturated with lithium chloride from the brine, and one column is in the process of lithium chloride desorption. Primary lithium concentrate is converted to a secondary lithium concentrate by concentration in evaporative pools or reverse-osmotic concentration-desalination. Secondary lithium concentrate is used for further production of lithium chloride or lithium carbonate. Invention increases recovery of lithium chloride during sorption enrichment of natural lithium brines, improves ...

A LONG TERM-STABILIZED SUSPENSION FOR COVERING IRON MINERAL, AND A PROCESS FOR ITS PRODUCTION

A long term stabilized suspension, and process for its production which can be used for covering briquettes, particles, pellets or powders of iron mineral and other several materials, in order to avoid its agglomeration when stored or submitted to a heat treatment; and which can be stored for at least three months without substantial agitation and without experimenting substantial settlement and the formation of a solid hard substrate.

MAGNESIUM HYDROXIDE WITH IMPROVED COMPOUNDING AND VISCOSITY PERFORMANCE

Novel magnesium hydroxide flame retardants, a method of making them from filter cakes, and their use.

METHOD FOR PRODUCING STABLE, MONODISPERSED, NANOMETRIC MAGNESIUM HYDROXIDE AND RESULTING PRODUCT

The invention relates to a method for preparing nanometric particles of m agnesium hydroxide, having an average diameter of between 90 and 110 nm or i n the 20 to 160 nm range and having monodispersion characteristics and stabi lity over periods longer than 12 months in a wide range of concentrations. T he method comprises three phases, namely: a reaction phase performed in two steps, i.e. a first maturation step carried out in a micromixed zone and a s econd purification step involving stabilisation of the suspension; a second phase in which the particles are matured using a chemical-mechanical treatme nt; and a third phase which is designed to purify and concentrate the materi al and to prepare said material for integration into the desired medium. The particles obtained can be redispersed in different media, such as alkyd, ph enolic, nitrocellulose, polyurethane, vinyl and acrylic resins, water, alcoh ols and a wide variety of organic materials and polymers such as high- and l ow-density ...

HIGH-ASPECT-RATIO MAGNESIUM HYDROXIDE

The purpose of the present invention is to provide magnesium hydroxide with a high aspect ratio, a manufacturing method therefor, and a resin composition containing said magnesium hydroxide. Said manufacturing method, whereby magnesium hydroxide with a major axis (width) of at least 0.5 µm and an aspect ratio of at least 10 is manufactured, includes the following steps: a step (A) wherein an alkali is added to and coprecipitated with a mixed aqueous solution, which consists of a water-soluble magnesium salt and a monovalent organic acid or salt thereof, or a step (B) wherein an aqueous solution of an alkali is added to and coprecipitated with an aqueous solution of a water-soluble magnesium salt and then a monovalent organic acid or salt thereof is added; and (C) a step wherein the obtained slurry is hydrothermally treated at at least 100°C.

STABILIZED MAGNESIUM HYDROXIDE SLURRY

A method for producing a stabilized magnesium hydroxide slurry comprising physically deflocculating the magnesium hydroxide solids in a starting slurry to produce a stabilized magnesium hydroxide slurry. Depending on the chloride level of the starting slurry, a cationic polymer may be added to the slurry. Optionally a thickening agent may be added to the deflocculated slurry. Also disclosed is a stabilized magnesium hydroxide slurry produced by the method which may be transported and stored without substantial agglomeration of the magnesium hydroxide solids.

STABILIZATION OF MAGNESIUM HYDROXIDE SLURRIES

A treatment for reducing viscosity and inhibiting settling of an aqueous 30% or higher by weight magnesium hydroxide slurry which comprises adding to the slurry an amount, effective for the purpose of a combination of an alkyl sulfosuccinate surfactant, a xanthan gum and a clay.

CATALYSTS FROM NANOWIRES AND METHODS OF THEIR APPLICATION AND PRODUCTION OF

COMPOSITION COMPRISING ONE OR MORE CALCIUM-MAGNESIUM COMPOUNDS IN THE FORM OF COMPACTS

HANDLEABLE CALCO-MAGNESIAN SUSPENSION

MIXED CALCIUM AND MAGNESIUM COMPOUND AND METHOD FOR PRODUCING SAME

nanoprovolochnye catalysts

СТІЙКА СУСПЕНЗІЯ ДЛЯ ПОКРИТТЯ ЗАЛІЗОРУДНИХ МАТЕРІАЛІВ ТА СПОСІБ ЇЇ ВИГОТОВЛЕННЯ

Винахід належить до галузі чорної металургії. Заявлена суспензія для покриття залізорудних та інших металургійних матеріалів для запобігання їх агломерації містить: тверду складову приблизно від 52 до 72 мас. %, воду від 28 до 48 мас. %, в'язкість приблизно від 500 до 1500 сантипуаз, середній розмір частинок приблизно від 1 до 3 мікронів, масову частку гідроксиду магнію приблизно від 50 до 70 мас. %, еквівалентний вміст оксиду магнію від 34 до 48 мас %, причому суспензія додатково містить принаймні один аніонний поліелектроліт при концентрації принаймні 25 мас. % в кількості приблизно від 0,5 до 2,5 мас. % в перерахунку на суху речовину та сполуку, що поліпшує опірність відклеюванню від поверхні залізорудних матеріалів під час роботи з ними, при концентрації принаймні 30 мас. % в кількості від 0,5 до 5 мас. % в перерахунку на суху речовину. Суспензію виготовляють з гідроксиду магнію, що одержують різними способами, який після цього вимивають, фільтрують та репульпують, щоб зменшити вміст ...

METHOD OF PRODUCING LITHIUM CONCENTRATE FROM LITHIUM-BEARING NATURAL BRINES AND ITS PROCESSING IN THE LITHIUM CHLORIDE OR LITHIUM CARBONATE

Nickel recovery from laterite ore contg. magnesium - by leaching with hot hydrochloric acid under pressure, and hydrolysing to extract magnesium

Magnesium products and process to manufacture it

Nickel recovery from laterite ore contg. magnesium - by leaching with hot hydrochloric acid under pressure, and hydrolysing to extract magnesium

SUSPENSION CALCO-MAGNESIAN HANDY

Suspension aqueuse calco-magnésienne comprenant des particules solides répondant à la formule générale a Ca(OH)2.b Mg(OH)2.c MgO dans une phase aqueuse à une concentration supérieure ou égale à 200 g/kg, où a, b et c représentent des fractions massiques dont la somme vaut de 90 à 100 % et un additif simultanément réducteur de viscosité et modérateur de l'augmentation de la viscosité, dans laquelle ledit additif est un phosphonate ou un acide phosphonique.

Process for the use of magnesia to chemical reactions in closed circuit

고애스펙트비 수산화마그네슘

... 본 발명의 목적은 높은 애스펙트비를 갖는 수산화마그네슘, 그 제조 방법 및 그것을 함유하는 수지 조성물을 제공하는 것에 있다. (A) 수용성 마그네슘염과 1 가 유기산 혹은 그 염의 혼합 수용액에 알칼리를 첨가하여 공침시키고, 또는 (B) 수용성 마그네슘염의 수용액에 알칼리의 수용액을 첨가하여 공침시킨 후, 1 가 유기산 혹은 그 염을 첨가하여, (C) 얻어진 슬러리를 100 ℃ 이상에서 수열처리하는 각 공정을 포함하는, 장경 (가로폭) 이 0.5 ㎛ 이상이며 애스펙트비가 10 이상인 수산화마그네슘의 제조 방법이다.

수산화마그네슘 입자 및 그것을 포함하는 수지조성물

... α선 방출량이 적고, 또한 수지에 배합한 경우의 유동성 및 분산성이 양호한 수산화마그네슘 입자, 및 이 수산화마그네슘 입자를 포함하는 수지조성물 및 그 제조 방법을 제공하는 것. 결정 외형이, 서로 평행한 상하 2면의 육각형의 기저면과, 이 기저면 사이에 형성되는 외주 6면의 각주면으로 이루어진 육각주형상 입자로서, 상기 육각주형상 입자의 c축 방향의 크기가 0.5∼6.0㎛이고, 상기 c축 방향의 크기가 상기 육각주형상 입자의 평균 입자 크기의 50% 이상이며, α선 방출량이 0.020c/cm2/h 이하이고, 또한 순도가 98.0 질량% 이상인, 수산화마그네슘 입자 및 그 제조방법이다.

나노복합형 난연제 및 그 제조방법

... 본 발명은 나노복합형 난연제 및 이의 제조방법에 관한 것이다. 본 발명의 목적은 나노 실리카구를 제조하는 단계; 상기 나노 실리카구와 금속염화물을 혼합하는 단계; 및 상기 나노 실리카구의 표면에 금속수산화물이 형성되는 단계를 포함하는,나노복합형 난연제의 제조방법에 의해 달성된다. 본 발명에 따른 나노복합형 난연제는 매우 큰 비표면적을 갖고 있어 적은 양의 수산화알루미늄으로도 최대의 난연 성능을 구현할 수 있고, 우수한 열적 안정성을 갖는다.

METHOD FOR MANUFACTURING ISOLATABLE OXIDE MICROPARTICLES OR HYDROXIDE MICROPARTICLES

NANOWIRE CATALYSTS

Method for avoiding the agglomeration of pellets treated at high temperatures

A method for avoiding the agglomeration of pellets of several kinds of materials when treated at high temperatures, which comprises: covering the pellets with a long term stabilized magnesium hydroxide suspension which can be stored for at least three months without substantial agitation and without experiencing substantial settlement and solid hard substrate formation, comprising a solid content of about 51% to 61%; a water content of about 39% to 49%; a viscosity of about 500 to 1,500 cp.; an average particle size of about 1 to 2.5 microns; a Mg(OH).sub.2 content of about 50% to 60%; an equivalent magnesium oxide content of 34% to 42%; including a compound that improves the adhesion of the suspension to the pellets at a concentration of at least 30% in an amount of 0.5 to 5%, by weight, on a dry basis and an anionic polyelectrolyte as a dispersant agent, and which is obtained by washing, filtering and repulping magnesium hydroxide solids to obtain agglomerated solid particles, dispersing ...

NANOPARTICLES OF FLAME RETARDANT MAGNESIUM HYDROXIDE AND METHOD OF PRODUCTION THE SAME

The invention relates to chemical technologies, specifically nanoparticles of flame retardant magnesium hydroxide, and a process for the preparation thereof. The present nanoparticles of flame retardant magnesium hydroxide, including surface-processed nanoparticles, have a hexagonal plate-like structure with a specific surface area of up to 20 m/g, an average diameter of the secondary particles of up to 2 μm, a diameter of 10% of the secondary particles of up to 0.8 μm, a diameter of 90% of the secondary particles of up to 5 μm, with a longitudinal size of the primary particles of from 150 to 900 nm, and a thickness of from 15 to 150 nm. 9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. Nanoparticles of flame retardant magnesium hydroxide having hexagonal plate-like structure , said nanoparticles comprising:{'sup': '2', 'a surface area determined by the BET method of up to 20 m/g,'}an average diameter of secondary particles determined by the laser diffraction method of up to 2 μm, optionally surface processed, andwherein the diameter of 10% of the secondary particles does not exceed 0.8 μm, the diameter of 90% of the secondary particles does not exceed 5 μm, wherein the primary particles of said magnesium hydroxide have a shape of hexagonal plates with a longitudinal size of from 150 to 900 nm, and a thickness of from 15 to 150 nm.22. The nanoparticles of flame retardant magnesium hydroxide according to claim 21 , having an average size of the secondary particles determined by the laser diffraction method of from 0.7 to 1.7 μm.23. The nanoparticles of flame retardant magnesium hydroxide according to claim 21 , wherein surface area determined by the BET method of from 2 to 15 m/g.24. The nanoparticles of flame retardant magnesium hydroxide according to claim 21 , including a longitudinal size of the primary particles of from 200 to 600 nm and a ...

PROCESS FOR PREPARING A METAL HYDROXIDE

Hydrocarbon partial oxidation process

Magnesium hydroxide of high purity, having a fine particle size suitable for use in flame retardants and other high-end uses, is produced by utilizing flue gas desulfurization system process slurry as feedstock; the production process is absent energy-intensive steps as well as high-cost chemical usage.

СПОСОБ ПОЛУЧЕНИЯ НАНОМЕТРИЧЕСКОГО МОНОДИСПЕРСНОГО И СТАБИЛЬНОГО ГИДРОКСИДА МАГНИЯ И ПОЛУЧАЕМЫЙ ПРОДУКТ

... 1. Способ получения нанометрического монодисперсного и стабильного Mg(OH)2, состоящий из следующих стадий: ! a. смешение водного раствора магния и водного раствора щелочи, ! b. стабилизация смешанного продукта введением разбавителя, ! c.созревание стабилизированного продукта, ! d. очистка созревшего продукта с получением частиц гидроксида магния, ! причем способ, отличающийся тем, что ! i) получение наночастиц монодисперсного Mg(OH)2 имеет место в процессе стадий смешения и стабилизации, где смесь микросмешивается, ! ii) водный раствор магния содержит от 0,01 до 10 мас.% растворенного магния, поверхностно-активное вещество и органическую кислоту, ! iii) водный щелочной раствор содержит щелочь, выбранную из группы, которая включает в себя гидроксид натрия, гидроксид калия и растворы аммиака, и диспергатор, выбранный из типа полиакрилатных кислот или их солей, ! iv) разбавитель, который используется для стабилизации продукта смеси, содержит воду и диспергатор такой же природы, как диспергатор ...

ЧАСТИЦЫ ОКСИДА МАГНИЯ, ПОЛИМЕРНАЯ КОМПОЗИЦИЯ, КАУЧУКОВАЯ КОМПОЗИЦИЯ И ФОРМОВАННОЕ ИЗДЕЛИЕ

... 1. Частицы оксида магния, удовлетворяющие следующим условиям (A)-(C):(A) средний размер частиц составляет 5 мкм или менее;(B) удельная поверхность, определенная по методу BET, составляет 20 м/г или более и 200 м/г или менее; и(C) остаток после просеивания на сите с отверстиями размером 45 мкм составляет 0,1 мас.% или менее.2. Частицы оксида магния по п. 1, которые представляют собой кислотный акцептор для смолы.3. Частицы оксида магния по п. 1, которые представляют собой ингибитор преждевременной полимеризации для каучука.4. Частицы оксида магния по любому из пп. 1-3, которые подвергают поверхностной обработке, используя, по меньшей мере, одно вещество для поверхностной обработки, выбранное из группы, которую составляют высшие жирные кислоты, соли щелочноземельных металлов и высших жирных кислот, связывающие реагенты, сложные эфиры, которые образуют жирные кислоты, и многоатомные спирты, и фосфаты, которые образуют фосфорная кислота и высшие спирты.5. Частицы оксида магния по любому из ...

Polyhalite IMI Process For KNO3 Production

A process for producing KNO3 from polyhalite to is disclosed. In a preferred embodiment, the process comprises steps of (a) contacting polyhalite with HNO3; (b) adding Ca(OH)2 to the solution, thereby precipitating as CaSO4 at least part of the sulfate present in said solution; (c) precipitating as Mg(OH)2 at least part of the Mg2+ remaining in said solution by further addition of Ca(OH)2 to the remaining solution; (d) concentrating the solution, thereby precipitating as a sulfate compound at least part of the sulfate remaining in solution; (e) separating at least part of the NaCl from the solution remaining; and (f) crystallizing as solid KNO3 at least part of the K+ and NO3-contained in the solution. The process enables direct conversion of polyhalite to KNO3 of purity exceeding 98.5% and that is essentially free of magnesium and sulfate impurities.

Production of carboxylic acid and salt co-products

This invention provide processes for producing carboxylic acid product, along with useful salts. The carboxylic acid product that is produced according to this invention is preferably a C 2 -C 12 carboxylic acid. Among the salts produced in the process of the invention are ammonium salts.

METHOD FOR PRODUCING ISOLATABLE OXIDE MICROPARTICLES OR HYDROXIDE MICROPARTICLES

A method for producing isolatable oxide microparticles or hydroxide microparticles using an apparatus that processes a fluid between processing surfaces of processing members that are arranged opposite each other so as to be able to approach to or separate from each other and such that at least one can rotate relative to the other. At least two fluids are mixed and oxide microparticles or hydroxide microparticles are separated, said two fluids including: a fluid containing a microparticle raw material solution comprising a microparticle raw material mixed into a solvent, and a fluid containing a microparticle-separation solution. Immediately thereafter, the following are mixed to obtain isolatable oxide microparticles or hydroxide microparticles: a fluid containing the separated oxide microparticles or hydroxide microparticles; and a fluid containing a microparticle-treatment-substance-containing solution that contains a microparticle-treatment substance that adjusts the dispersibility of the separated oxide microparticles or hydroxide microparticles. 1. A method for producing isolatable oxide microparticles or hydroxide microparticles , whereineach of (I) a microparticle raw material solution which is obtained by mixing at least one microparticle raw material with a solvent, (II) a microparticle-separating solution, and (III) a microparticle-treating substance solution which is obtained by mixing at least one microparticle-treating substance with a solvent is prepared, wherein the method comprises:(IV) a step of separating oxide microparticles or hydroxide microparticles, whereinat least two fluids to be processed are used:out of them, at least one fluid is the fluid which contains the microparticle raw material solution and at least one fluid other than the microparticle raw material solution is the fluid which contains the microparticle-separating solution, whereinthe fluid which contains the microparticle raw material solution is mixed with the fluid which ...

POLYMER TEMPLATED NANOWIRE CATALYSTS

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are prepared by polymer templated methods and are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethane and/or ethylene. Related methods for use and manufacture of the same are also disclosed. 1. A method for preparing a nanowire comprising a metal oxide , a metal oxy-hydroxide , a metal oxycarbonate or a metal carbonate , the method comprising:a) providing a solution comprising a plurality of polymer templates;{'sub': m', 'n', 'p, '(b) introducing at least one metal ion and at least one anion to the solution under conditions and for a time sufficient to allow for nucleation and growth of a nanowire comprising a plurality of metal salts (MXZ) on the template; and'}{'sub': m', 'n', 'p', 'x', 'y', 'x', 'y', 'z', 'x', 'y', '3', 'z', 'x', '3', 'y, '(c) optionally converting the nanowire (MXZ) to a metal oxide nanowire comprising a plurality of metal oxides (MO), metal oxy-hydroxides (MOOH), metal oxycarbonates (MO(CO)), metal carbonate (M(CO)) or combinations thereof'}wherein:M is, at each occurrence, independently a metal element from any of Groups 1 through 7, lanthanides or actinides;X is, at each occurrence, independently hydroxide, carbonate, bicarbonate, phosphate, hydrogenphosphate, dihydrogenphosphate, sulfate, nitrate or oxalate;Z is O;n, m, x and y are each independently a number from 1 to 100; andp is a number from 0 to 100.2. The method of claim 1 , wherein the polymer template comprises PVP (polyvinlpyrrolidone) claim 1 , PVA (polyvinylalcohol) claim 1 , PEI (polyethyleneimine) claim 1 , PEG (polyethyleneglycol) claim 1 , polyethers claim 1 , polyesters claim 1 , polyamides claim 1 , dextran claim 1 , sugar polymers claim 1 , functionalized hydrocarbon polymers claim 1 , functionalized polystyrene claim 1 , polylactic acid claim 1 , polycaprolactone claim 1 , polyglycolic acid claim 1 , poly(ethylene glycol)-polypropylene glycol)- ...

HEAT CONDUCTIVITY IMPROVING AGENT

A heat conductivity improving agent which can provide high heat conductivity to a resin. 1. A heat conductivity improving agent comprising a magnesium hydroxide particle having a thickness of 10 nm to 0.2 μm and an aspect ratio (long diameter/thickness) measured by a SEM method of not less than 10.2. The heat conductivity improving agent according to claim 1 , wherein the aspect ratio of the magnesium hydroxide particle is not less than 15.3. The heat conductivity improving agent according to claim 1 , wherein the BET specific surface area of the magnesium hydroxide particle is 10 to 30 m/g.4. The heat conductivity improving agent according to claim 1 , wherein the magnesium hydroxide particle has a CaO content of not more than 0.01 wt % claim 1 , a Cl content of not more than 0.05 wt % claim 1 , a Na content of not more than 0.01 wt % claim 1 , a total content of an iron compound claim 1 , manganese compound claim 1 , cobalt compound claim 1 , chromium compound claim 1 , copper compound claim 1 , vanadium compound and nickel compound of not more than 0.02 wt % in terms of metals claim 1 , and a Mg(OH)content of not less than 99.5 wt %.5. The heat conductivity improving agent according to which is surface treated with at least one surface treating agent selected from the group consisting of higher fatty acids claim 1 , anionic surfactants claim 1 , phosphoric acid esters claim 1 , coupling agents claim 1 , esters of a polyhydric alcohol and a fatty acid and silicone oil.6. The heat conductivity improving agent according to which has a coating layer made of an oxide or hydroxide of at least one element selected from the group consisting of silicon claim 1 , aluminum claim 1 , titanium claim 1 , zirconia claim 1 , zinc and boron.7. The heat conductivity improving agent according to which has a coating layer made of silicon oxide or hydroxide formed by making silicic acid or a soluble salt thereof act thereon.8. The heat conductivity improving agent according to claim ...

RHEOLOGY-MODIFYING AGENTS FOR SLURRIES

The present disclosure relates to rheology-modifying agents and methods of modifying the rheology of slurries. A rheology-modifying agent may be added to a slurry. The rheology-modifying agent may include a polymer and the polymer may include at least three chemically different monomers. The slurry may include lime and/or magnesium hydroxide. 1. A method of modifying the rheology of a slurry , comprising:adding a rheology-modifying agent to the slurry, the rheology-modifying agent comprising a polymer, wherein the polymer comprises a first monomer, a second monomer, a third monomer, and a fourth monomer, wherein the first, second, third, and fourth monomers are chemically different.2. The method of claim 1 , wherein the slurry comprises magnesium hydroxide or lime.3. The method of claim 1 , wherein the rheology-modifying agent comprises sodium carbonate.4. The method of claim 1 , wherein the rheology-modifying agent excludes phosphorous.5. The method of claim 1 , wherein the first monomer is selected from the group consisting of acrylic acid (“AA”) claim 1 , methacrylic acid (“MAA”) claim 1 , a butenoic acid claim 1 , a pentenoic acid claim 1 , a propenoic acid claim 1 , maleic acid (“MA”) claim 1 , maleic anhydride claim 1 , fumaric acid claim 1 , itaconic acid claim 1 , glutaconic acid claim 1 , muconic acid claim 1 , succinic acid claim 1 , citric acid claim 1 , aconitic acid claim 1 , a salt of any of the foregoing acids claim 1 , and a conjugate base of any of the foregoing acids.6. The method of claim 1 , wherein the polymer comprises about 55 mol % claim 1 , or more claim 1 , of the first monomer.7. The method of claim 1 , wherein the second monomer is selected from the group consisting of a second sulfonated acid claim 1 , a second carboxylic acid claim 1 , 2-acrylamido-2-methylpropane sulfonic acid (“ATBS”) claim 1 , sulfostyrene claim 1 , vinylsulfonic acid claim 1 , methallylsulfonic acid claim 1 , a salt of any of the foregoing acids claim 1 , and a ...

FACILE, LOW-ENERGY ROUTES FOR THE PRODUCTION OF HYDRATED CALCIUM AND MAGNESIUM SALTS FROM ALKALINE INDUSTRIAL WASTES

Divalent ions are extracted from solids by leaching to form a divalent ion-containing solution. The divalent ion-containing solution is subjected to concentration to form a concentrated divalent ion-containing solution. Precipitation of a divalent ion hydroxide salt is induced from the concentrated divalent ion-containing solution. In other cases, the concentrated divalent ion-containing solution is exposed to carbon dioxide to induce precipitation of a divalent ion carbonate salt. 1. A method comprising:extracting divalent ions from solids by leaching to form a divalent ion-containing solution;subjecting the divalent ion-containing solution to concentration to form a concentrated divalent ion-containing solution; andinducing precipitation of a divalent ion hydroxide salt from the concentrated divalent ion-containing solution.2. The method of claim 1 , wherein the solids include at least one of (a) slags or (b) fly ashes.3. The method of claim 1 , wherein extracting the divalent ions from the solids includes exposing the solids to a leaching solution.4. The method of claim 3 , wherein the leaching solution includes a leaching agent.5. The method of claim 3 , wherein the leaching solution includes an acid.6. The method of claim 1 , wherein extracting the divalent ions from the solids includes pulverizing the solids claim 1 , and exposing the pulverized solids to a leaching solution.7. The method of claim 1 , wherein subjecting the divalent ion-containing solution to concentration is performed using capacitive concentration.8. The method of claim 7 , wherein subjecting the divalent ion-containing solution to capacitive concentration includes disposing the divalent ion-containing solution between a pair of electrodes claim 7 , and applying an electrical input to the electrodes.9. The method of claim 7 , wherein subjecting the divalent ion-containing solution to capacitive concentration includes passing the divalent ion-containing solution through a series of n ...

CARBON DIOXIDE SEQUESTRATION WITH MAGNESIUM HYDROXIDE AND REGENERATION OF MAGNESIUM HYDROXIDE

Embodiments of the present disclosure are directed to systems and methods of removing carbon dioxide from a gaseous stream using magnesium hydroxide and then regenerating the magnesium hydroxide. In some embodiments, the systems and methods can further comprise using the waste heat from one or more gas streams to provide some or all of the heat needed to drive the reactions. In some embodiments, magnesium chloride is primarily in the form of magnesium chloride dihydrate and is fed to a decomposition reactor to generate magnesium hydrochloride, which is in turn fed to a second decomposition reactor to generate magnesium hydroxide. 1. A method for producing magnesium hydroxide from magnesium chloride-containing material comprising:a first stage comprising the steps of introducing said material into a first reactor, passing a steam mixture into the first reactor with the magnesium chloride-containing material at the approximate temperature of 250 to 400° C., to form magnesium hydroxychloride and HCl, anda second stage of conveying the magnesium hydroxychloride into a second reactor, introducing therewith steam to form magnesium hydroxide and HCl,where the magnesium chloride-containing material comprises a water to magnesium chloride ratio of about 2:1.2. The method of claim 1 , where a portion of a steam mixture exiting the second reactor is the steam mixture introduced into the first reactor.3. The method of claim 1 , where at least a portion of the HCl exits the second reactor in the steam mixture that then passes through the first reactor.4. The method of claim 1 , where the magnesium chloride-containing material substantially comprises magnesium chloride dihydrate.5. The method of claim 1 , where a portion of HCl formed in the first reactor exits the first reactor with the steam mixture.6. The method of claim 1 , where the first reactor is at a temperature of 250-350° C.7. The method of claim 6 , transferring heat from a hot gas stream to the first recycling ...

AEROGEL COMPOSITIONS FOR HIGH TEMPERATURE APPLICATIONS

Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described. 1. An aerogel composition comprising (i) a fibrous structure , (ii) a silica aerogel material within the fibrous structure , and (iii) fillers , the fillers comprising hydroxides , borates , silicates , carbonates , oxides , or combinations thereof , at least a portion of the fillers being in hydrated form.2. The aerogel composition of claim 1 , wherein the fillers comprise at least a smoke suppressing filler.3. The aerogel composition of claim 1 , wherein the composition is hydrophobic.4. The aerogel composition of claim 3 , wherein the silica aerogel material includes covalently attached hydrophobic materials.5. The aerogel composition of claim 1 , wherein a majority of the filler is in hydrated form.6. The aerogel compositions of claim 1 , wherein the hydroxides comprise metal hydroxides.7. The aerogel composition of claim 6 , wherein the metal hydroxides comprise magnesium hydroxide.8. The aerogel composition of claim 6 , wherein the metal hydroxides comprise aluminum hydroxide.9. The aerogel composition of claim 6 , wherein the metal hydroxides are present at a level of 1 to 40 percent by weight of the aerogel composite.10. The aerogel composition of claim 1 , wherein the borates comprise zinc borate.11. The aerogel composition of claim 10 , wherein the zinc borate is present at a level of 1 to 40 percent by weight of the aerogel composite.12. The aerogel composition of claim 1 , wherein the silicates comprise aluminum silicate.13. The aerogel composition of claim 12 , wherein the aluminum silicate is present at a level of less than 50 percent by weight of the aerogel composite.14. The aerogel composition of claim 12 , wherein the ...

PRODUCTION OF ETHYLENE WITH NANOWIRE CATALYSTS

Nanowires useful as heterogeneous catalysts are provided. The nanowires catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethylene. Related methods for use and manufacture of the same are also disclosed. 1. A catalyst comprising an inorganic catalytic nanowire , the nanowire having a ratio of effective length to actual length of less than one and an aspect ratio of greater than ten as measured by TEM in bright field mode at 5 keV , wherein the nanowire comprises one or more elements from any of Groups 1 through 7 , lanthanides , actinides or combinations thereof , wherein the catalyst has a catalytic activity effective to catalyze the oxidative coupling of methane with a Cselectivity of greater than 30% at a temperature below 600° C.2. The catalyst of claim 1 , wherein the one or more elements are in the form of oxides claim 1 , hydroxides claim 1 , oxyhydroxides claim 1 , sulfates claim 1 , carbonates claim 1 , oxide carbonates claim 1 , oxalates claim 1 , phosphates claim 1 , hydrogenphosphates claim 1 , dihydrogenphosphates claim 1 , oxyhalides claim 1 , hydroxihalides claim 1 , oxysulfates or combinations thereof.3. The catalyst of claim 2 , wherein the one or more elements are in the form of oxides.4. The catalyst of claim 2 , wherein the one or more elements are in the form of hydroxides.5. The catalyst of claim 1 , wherein the nanowire comprises Mg claim 1 , Ca claim 1 , La claim 1 , W claim 1 , Mn claim 1 , Mo claim 1 , Nd claim 1 , Sm claim 1 , Eu claim 1 , Pr claim 1 , Zr or combinations thereof.6. The catalyst of claim 1 , wherein the nanowire comprises MgO claim 1 , CaO claim 1 , LaO claim 1 , NaWO claim 1 , MnO claim 1 , MnO claim 1 , NdO claim 1 , SmO claim 1 , EuO claim 1 , PrO claim 1 , MgMnO claim 1 , NaMnO claim 1 , Na/Mn/W/O claim 1 , MnWOor combinations thereof.7. The catalyst of claim 1 , wherein the nanowire further comprises one or more dopants comprising metal elements claim 1 , semi- ...

AEROGEL COMPOSITIONS WITH ENHANCED PERFORMANCE

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described. 1. A flexible aerogel blanket comprising an aerogel material , the aerogel material comprising an opacifying compound and hydrophobic materials covalently attached to a surface of the aerogel material , wherein the opacifying compound is embedded within the aerogel matrix.2. The aerogel composition of claim 1 , further comprising a fibrous structure.3. The aerogel composition of claim 2 , wherein the fibrous structure is in a woven claim 2 , nonwoven claim 2 , mat claim 2 , felt claim 2 , batting claim 2 , or a combination thereof.4. The aerogel composition of claim 1 , wherein the opacifying compound is selected from the group consisting of BC claim 1 , Diatomite claim 1 , Manganese ferrite claim 1 , MnO claim 1 , NiO claim 1 , SnO claim 1 , AgO claim 1 , BiO claim 1 , TiC claim 1 , WC claim 1 , carbon black claim 1 , titanium oxide claim 1 , iron titanium oxide claim 1 , zirconium silicate claim 1 , zirconium oxide claim 1 , iron (I) oxide claim 1 , iron (III) oxide claim 1 , manganese dioxide claim 1 , iron titanium oxide (ilmenite) claim 1 , chromium oxide claim 1 , silicon carbide claim 1 , and combinations thereof.5. The aerogel composition of claim 1 , wherein the opacifying compound comprises silicon carbide.6. The aerogel composition of claim 1 , further comprising a filler.7. The aerogel composition of claim 6 , wherein the filler comprises hydroxides claim 6 , borates claim 6 , silicates claim 6 , carbonates claim 6 , oxides claim 6 , or combinations thereof.8. The aerogel composition of claim 6 , at least a portion of the filler is in hydrated form.9. The aerogel composition of claim 6 , wherein a majority of the filler ...

APPLICATION OF LACTAM AS SOLVENT IN NANOMATERIAL PREPARATION

The present invention disclosed use of lactam as a solvent in the preparation of nanomaterials by precipitation method, sol-gel method or high temperature pyrolysis. These methods are able to recycle lactam solvent, which meet requirements of environmental protection. 1. A method of synthesizing nanomaterials comprising the step of:providing lactam as a solvent in a method for synthesizing nanomaterials.2. The method according to claim 1 , wherein the lactam is one or more of substances selected cyclic amide or a cyclic amide derivative.5. The method according to claim 2 , wherein the cyclic amide derivatives are selected from N-methylvalerolactam claim 2 , N-methylcaprolactam claim 2 , N-vinylcaprolactam and N-methoxycaprolactam.6. The method according to claim 1 , wherein the nanomaterials refer to substances containing inorganic particles with 1 nm Подробнее

METHOD FOR MAKING MESOPOROUS MAGNESIUM HYDROXIDE NANOPLATES, AN ANTIBACTERIAL COMPOSITION, AND A METHOD OF REDUCING NITROAROMATIC COMPOUNDS

A method for producing mesoporous magnesium hydroxide nanoplates involving solvothermal treatment of a solution of a magnesium salt, a base, a glycol, and water is disclosed. The method does not use a surfactant or template in the solvothermal treatment. The method yields mesoporous nanoparticles of magnesium hydroxide having a plate-like morphology with a diameter of 20 nm to 100 nm, a mean pore diameter of 2 to 10 nm, a surface area of 50 to 70 m/g, and a type-III nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. An antibacterial composition containing the mesoporous magnesium hydroxide nanoplates is also disclosed. A method for reducing nitroaromatic compounds with a reducing agent and the mesoporous magnesium hydroxide nanoplates as a catalyst is also disclosed. 1. A method for making mesoporous magnesium hydroxide nanoplates with a diameter of 20 nm to 100 nm , the method comprising:heating an aqueous mixture of a magnesium salt, a base, and a glycol having 2 to 6 carbon atoms at a temperature of 140 to 220° C. for 1 to 24 hours,wherein the aqueous mixture is substantially free of a surfactant, a template, or both, andwherein the heating forms a precipitate containing the mesoporous magnesium hydroxide nanoplates.2. The method of claim 1 , wherein the magnesium salt is a magnesium halide.3. The method of claim 2 , wherein the magnesium halide is magnesium chloride.4. The method of claim 1 , wherein the magnesium salt is present in the aqueous mixture in an amount of 15 to 25 g/L.5. The method of claim 1 , wherein the base is a monoacidic base.6. The method of claim 5 , wherein the base is an acetate base.7. The method of claim 6 , wherein the base is sodium acetate.8. The method of claim 1 , wherein the base is present in the aqueous mixture in an amount of 25 to 40 g/L.9. The method of claim 1 , wherein a mole ratio of the amount of base present in the aqueous mixture to the amount of magnesium present in the aqueous mixture 1:1 to 3:1.10. ...

IN-SITU NEUTRALIZATION MEDIA FOR DOWNHOLE CORROSION PROTECTION

Inhibiting or preventing corrosion of metallic components downhole may be accomplished by introducing neutralization media into a wellbore in the proximity of downhole metallic components, where the neutralization media comprises magnesium and where the method further includes subsequently contacting the neutralization media with a potentially corrosive environment comprising at least 5 volume % water, where the water has a pH of less than 11. This contacting activates the neutralization media with the water thereby releasing magnesium ions, and the magnesium ions react with hydroxyl ions of the water to give magnesium hydroxide in an amount effective to raise the pH of the water present to be between about 8 and 12 thereby inhibiting or preventing corrosion of metallic components downhole. 1. A method for inhibiting or preventing corrosion of metallic components downhole , the method comprising:introducing neutralization media into a wellbore in proximity of downhole metallic components, the neutralization media comprising magnesium and where the neutralization media is selected from the group consisting of controlled electrolytic metallic (CEM) nanostructured material, media produced by additive manufacturing, and combinations thereof, where additive manufacturing is selected from the group consisting of 3D printing, rapid prototyping, direct digital manufacturing, layered manufacturing, stereolithography, multi-iet modeling, fused deposition modeling and selective layer sintering;{'sub': 2', '2, 'sensing a change in the corrosive fluid by a sensor, which sensor initiates contacting the neutralization media with the potentially corrosive fluid comprising water, where the water has a pH of less than about 11; where sensing a parameter change is selected from the group consisting of detecting the pH of the corrosive fluid falling, detecting a presence of HS, detecting a presence of CO, detecting a temperature increase above a pre-set threshold, detecting an oxygen ...

POLYMER TEMPLATED NANOWIRE CATALYSTS

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are prepared by polymer templated methods and are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethane and/or ethylene. Related methods for use and manufacture of the same are also disclosed. 133.-. (canceled)34. A process for the preparation of ethylene from methane comprising contacting a mixture comprising oxygen and methane with a catalytic material comprising nanowires comprising a plurality of metal oxides (MO) , metal oxy-hydroxides (MOOH) , metal oxycarbonates (MO(CO)) or metal carbonates (M(CO)) or combinations thereof , the nanowires prepared by a method comprising:a) providing a solution comprising a polymer template; and{'sub': m', 'n', 'p, '(b) introducing at least one metal ion and at least one anion to the solution under conditions and for a time sufficient to allow for nucleation and growth of nanowires comprising a plurality of metal salts (MXZ) on the polymer template,'}wherein:M is, at each occurrence, independently a metal element from any of Groups 1 through 7, lanthanides or actinides;X is, at each occurrence, independently hydroxide, carbonate, bicarbonate, phosphate, hydrogenphosphate, dihydrogenphosphate, sulfate, nitrate or oxalate;Z is O;n, m, x and y are each independently a number from 1 to 100; andp is a number from 0 to 100.35. The process of claim 34 , wherein the polymer template is functionalized with at least one of amine claim 34 , carboxylic acid claim 34 , sulfate claim 34 , alcohol or thiol groups.36. The process of claim 35 , wherein the polymer template comprises a hydrocarbon polymer.37. The process of claim 36 , wherein the polymer template comprises polystyrene.38. The process of claim 34 , wherein the method further comprises converting the nanowires comprising the plurality of metal salts (MXZ) to the nanowires comprising the plurality of metal oxides (MO) claim 34 , metal oxy-hydroxides (MOOH) ...

PRODUCTION OF ETHYLENE WITH NANOWIRE CATALYSTS

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to ethylene. Related methods for use and manufacture of the same are also disclosed. 1113-. (canceled)114. A method for the preparation of ethylene from methane , the method comprising contacting a mixture comprising oxygen and methane at a temperature below 600° C. with a catalytic nanowire , thereby producing C2 hydrocarbons at a selectivity of greater than 30% , wherein the catalytic nanowire comprises one or more elements from any of Groups 1 through 7 , lanthanides , actinides or combinations thereof in the form of oxides , hydroxides , oxyhydroxides , sulfates , carbonates , oxide carbonates , oxalates , phosphates , hydrogenphosphates , dihydrogenphosphates , oxyhalides , hydroxihalides , oxysulfates or combinations thereof.115. The method of claim 114 , wherein the one or more elements are in the form of oxides.116. The method of claim 114 , wherein the catalytic nanowire comprises Mg claim 114 , Ca claim 114 , La claim 114 , W claim 114 , Mn claim 114 , Mo claim 114 , Nd claim 114 , Sm claim 114 , Eu claim 114 , Pr claim 114 , Zr or combinations thereof.117. The method of claim 114 , wherein the catalytic nanowire comprises MgO claim 114 , CaO claim 114 , LaO claim 114 , NaWO claim 114 , MnO claim 114 , MnO claim 114 , NdO claim 114 , SmO claim 114 , EuO claim 114 , PrO claim 114 , MgMnO claim 114 , NaMnO claim 114 , Na/Mn/W/O claim 114 , MnWOor combinations thereof.118. The method of claim 114 , wherein the catalytic nanowire further comprises one or more dopants comprising metal elements claim 114 , semi-metal elements claim 114 , non-metal elements or combinations thereof.119. The method of claim 118 , wherein the dopant comprises Li claim 118 , Na claim 118 , K claim 118 , Mg claim 118 , Ca claim 118 , Ba claim 118 , Sr claim 118 , Eu claim 118 , Sm claim 118 , Co or Mn.120. The ...

NANOWIRE CATALYSTS AND METHODS FOR THEIR USE AND PREPARATION

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the same are also disclosed. 141-. (canceled)42. A method for the preparation of ethane , ethylene or combinations thereof , the method comprising contacting a catalytic material with a gas comprising methane , wherein the catalytic material comprises a plurality of catalytic nanowires and a diluent or support , the diluent or support comprising an alkaline earth metal compound.43. The method of claim 42 , wherein the catalytic material is in the form of a pressed pellet claim 42 , extrudate or monolith.44. The method of claim 42 , wherein the catalytic material is in the form of a pressed pellet.45. The method of claim 42 , wherein the catalytic material is in the form of an extrudate.46. The method of claim 42 , wherein the catalytic material is in the form of a monolith.47. The method of claim 42 , wherein the catalytic nanowires comprise one or more doping elements.48. The method of claim 42 , wherein the catalytic material is in the form of a pressure treated claim 42 , pressed pellet and comprises substantially no binder material.49. The method of claim 42 , wherein the catalytic material is in the form of a pressed pellet or extrudate and comprises pores greater than 20 nm in diameter.50. The method of claim 42 , wherein the alkaline earth metal compound is an alkaline earth metal oxide claim 42 , alkaline earth metal carbonate claim 42 , alkaline earth metal sulfate or alkaline earth metal phosphate.51. The method of claim 42 , wherein the alkaline earth metal compound is an alkaline earth metal carbonate claim 42 , alkaline earth metal sulfate or alkaline earth metal phosphate.52. The method of claim 42 , wherein the diluent or support comprises MgO claim 42 , MgCO claim 42 , MgSO claim 42 , Mg(PO) claim 42 , MgAlO claim ...

Inorganic granulate materials

The present invention relates to a granulated composition, comprising a particulate alkaline metal hydroxide or alkaline metal oxide or mixtures thereof and methods of granulating particulate alkaline metal hydroxides and alkaline metal oxides or mixtures thereof. The invention further concerns the granulated products obtained from the said methods.

Powder grinding method and powder grinding machine

This invention prevents adhesion of powder to the inner wall of a pulverization container of a powder pulverization device. A powder pulverization device 10 comprises a hermetically sealed pulverization container 20; a powder introduction mechanism 30 having an introduction inlet 31a opened inwardly to the pulverization container 20, and introducing powder to be pulverized to the introduction inlet 31a; a powder pulverization mechanism 40 disposed at a portion below the introduction inlet 31a in the pulverization container 20 for causing high-pressure air to collide with powder, thereby pulverizing the powder; and a classification device 50 disposed at a portion above the introduction inlet 31a in the pulverization container 20 for screening pulverized powder and leading the screened powder out from the pulverization container 20, wherein an inner wall 20a of the pulverization container 20 is covered with a porous lining material 60A/60B and each hole 65 of the lining material 60A/60B communicates with an air supply device 62 via a gap 61A/61B between the inner wall 20a and the lining material 60A/60B.

AEROGEL COMPOSITIONS FOR HIGH TEMPERATURE APPLICATIONS

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described. 122-. (canceled)23. A method comprising: (a) forming a silica gel mixture comprising silica gel and fillers; (b) combining the silica gel mixture with a reinforcing structure; and (c) drying the combined mixture to form a silica aerogel composition comprising an aerogel and the fillers; the fillers comprising hydroxides , borates , silicates , carbonates , oxides or combinations thereof; at least a portion of the fillers being in hydrated form.24. The method of claim 23 , wherein the fillers comprise at least a smoke suppressing filler.25. The method of claim 23 , wherein a majority of the fillers are in hydrated form.26. The method of claim 23 , wherein the fillers are present at a level of 1 to 40 percent by weight of the aerogel composite.27. The method of claim 23 , wherein the fillers are present at a level of 1 to 50 percent by weight of the aerogel composite.28. The method of claim 23 , wherein the fillers are present at a level of 5 to 50 percent by weight of the aerogel composite.29. The method of claim 23 , wherein the silica gel mixture is formed by mixing an amount of a filler with an amount of silica gel in a suitable solvent.30. The method of claim 23 , wherein the reinforcing structure is fibrous.31. The method of claim 23 , wherein the fibrous reinforcing structure is in a woven claim 23 , nonwoven claim 23 , mat claim 23 , felt claim 23 , batting claim 23 , or a combination thereof.32. The method of claim 23 , wherein drying comprises drying the composition with a supercritical fluid which comprises carbon dioxide.33. The method of claim 23 , wherein the silica aerogel composition includes an aerogel in which the ...

Aerogel compositions for high temperature applications

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described.

Method for lithium processing

A method for improved processing of lithium metallurgical solutions comprises the steps of: i. Directing a lithium leach solution containing magnesium to an electrochemical magnesium removal step to form a magnesium depleted lithium leach solution; ii. Directing the magnesium depleted lithium leach solution of step i) to downstream concentration and recovery processes wherein the electrochemical magnesium removal step is a 3-chamber electrochemical configuration to produce magnesium hydroxide precipitate and a separate hydrochloric acid stream, as recoverable by-products.

NANOMETER-SIZE-PARTICLE PRODUCTION APPARATUS, NANOMETER-SIZE-PARTICLE PRODUCTION PROCESS, NANOMETER-SIZE PARTICLES, ZINC/ZINC OXIDE NANOMETER-SIZE PARTICLES, AND MAGNESIUM HYDROXIDE NANOMETER-SIZE PARTICLES

A nanometer-size-particle production apparatus is provided which can prevent the occurrence of waste fluids, and which makes quick and continuous syntheses feasible while suppressing damages to the electrode. 117-. (canceled)18. A nanometer-size-particle production process for synthesizing nanometer-size particles into a liquid by means of plasma in liquid , the nanometer-size-particle production process including:a disposition step of face-to-face disposing, within said liquid, a metallic chip above the leading-end upside of an electrode conductor in which a covering portion is disposed;a supply step of supplying a high-frequency wave, or a microwave, into said liquid by way of said electrode conductor; anda feed step of feeding out said metallic chip toward said electrode conductor;a leading-end section of said electrode conductor having a configuration that is a non-edge configuration; andsaid electrode conductor, except for the leading-end section, having an axially-orthogonal cross-sectional area that is larger than an axially-orthogonal cross-sectional area of said metallic chip.19. The nanometer-size-particle production process according to claim 18 , wherein:said liquid being pure water; andsaid metallic chip being formed of z.20. The nanometer-size-particle production process according to claim 18 , wherein:said liquid being pure water; andsaid metallic chip being formed of magnesium. This application is a Divisional of U.S. application Ser. No. 14/114,033, filed on Oct. 25, 2013, which is a National Stage of International Application No. PCT/JP2012/002799, filed on Apr. 24, 2012, which claims priority from Japanese Patent Application No. 2011-101531, filed on Apr. 28, 2011, the contents of all of which are incorporated herein by reference in their entirety.The present invention is one which relates to nanometer-size particles, and to a production apparatus and production process for nanometer-size particles.Since nanometer-size particles have physical ...

REDISPERSIBLE MAGNESIUM HYDROXIDE AND A PROCESS FOR MANUFACTURING THE SAME

A redispersible magnesium hydroxide is disclosed. The redispersible magnesium hydroxide comprises of magnesium hydroxide particles coated with at least one capping agent wherein the capping agent having a critical micellar concentration value of not more than 0.15% the redispersible magnesium hydroxide having a size in the range of 5 nm to 500 nm. 1. A redispersible magnesium hydroxide comprising:magnesium hydroxide particles coated with at least one capping agent, the capping agent having a critical micellar concentration value of not more than 0.15%, the redispersible magnesium hydroxide having a size in the range of 5 nm to 500 nm.2. A process as claimed in claim 1 , wherein the capping agent has a critical micellar concentration value of not more than 0.05%.3. A redispersible magnesium hydroxide as claimed in claim 1 , wherein the amount of capping agent ranges from 30% to 60% of the magnesium hydroxide particles.4. A redispersible magnesium hydroxide as claimed in claim 1 , wherein the capping agent is selected from an ionic surfactant claim 1 , a non-ionic surfactant and an amphoteric surfactant.5. A redispersible magnesium hydroxide as claimed in claim 1 , is in powder form and having moisture content about less than 2.0% and preferably less than 0.5%.6. A process for manufacturing redispersable magnesium hydroxide comprising:preparing an aqueous solution of magnesium hydroxide precursor;adding a capping agent to the aqueous solution of magnesium hydroxide precursor to obtain a mixture;adding an aqueous solution of alkali to the mixture to precipitate redispersable magnesium hydroxide;separating and drying the redispersable magnesium hydroxide.7. A process as claimed in claim 6 , wherein the capping agent has a critical micellar concentration value of not more than 0.15%.8. A process as claimed in claim 6 , wherein the capping agent has a preferred critical micellar concentration value of not more than 0.05%.9. A process as claimed in claim 6 , wherein the ...

METHODS AND SYSTEMS FOR PRODUCING ACTIVATED SILICATE BASED MATERIALS USING SUSTAINABLE ENERGY AND MATERIALS

Methods and systems for producing highly activated silicate materials are disclosed. A silicate source material is provided for reaction with a reforming agent in a reforming process. The reforming process is a hydrothermal process and/or a high temperature silicate reforming (HTSR) process. The reaction materials are brought to the suitable reaction temperature via a heat source in the presence of the suitable reaction medium. For the hydrothermal reaction process, the reaction medium and heat source can be exhausted steam that is the byproduct of another industrial process. For the HTSR process, the silicate source material and the heat source can be a molten slag byproduct from another industrial process. The activated silicate materials exhibit improved reactivity compared to non-activated silicate materials and thus are advantageously employed in elemental extraction processes to produce a value material product. By being integrated with the utilization of industrial waste heat, like molten slag heat utilization (MSHU), and the recycle of the reforming agents, the production of activated silicate based materials can base on sustainable energy and materials. 1. A method of producing activated silicate material comprising:providing a silicate source material;reforming the silicate source material to an activated silicate material with a reforming agent in a reforming reaction; andproviding the activated silicate material to an elemental extraction process.2. The method according to claim 1 , wherein the silicate source material is comprised of a calcium mineral claim 1 , a magnesium mineral claim 1 , slag claim 1 , mine tailing claim 1 , fly ash claim 1 , kiln dust claim 1 , or a combination thereof.3. The method according to claim 1 , wherein reforming the silicate source material further comprises applying heat from an industrial energy production source claim 1 , an industrial energy production process claim 1 , waste energy source claim 1 , molten iron slag ...

Process for producing a stabilized magnesium hydroxide slurry

The present disclosure provides stable magnesium hydroxide slurry compositions and methods for producing stable magnesium hydroxide slurry compositions. The stable magnesium hydroxide slurries of the disclosure comprise magnesium hydroxide at about 50 to about 70% solids by weight in the slurry, a viscosity of less than about 1000 centipoise, and a 7-day pour test of 90% or greater.

NANOPLATELET METAL HYDROXIDES AND METHODS OF PREPARING SAME

Nanoplatelet forms of metal hydroxide and metal oxide are provided, as well as methods for preparing same. The nanoplatelets are suitable for use as fire retardants and as agents for chemical or biological decontamination. 1. Nanoplatelets having an average platelet diameter of from about 30 nm to about 3500 nm and an average thickness of from about 1 nm to about 400 nm , wherein the nanoplatelet is an oxide or a hydroxide of a metal selected from the group consisting of beryllium , scandium , chromium , gallium , yttrium , niobium , molybdenum , technetium , ruthenium , rhodium , palladium , cadmium , indium , tin , lutetium , hafnium tantalum , tungsten rhenium osmium iridium platinum , gold , mercury , thallium , lead , bismuth , radium , and mixtures thereof.2. Nanoplatelets of claim 1 , comprising individual crystallites.3. Nanoplatelets of claim 1 , having an average aspect ratio of from about 15 to about 70.4. Nanoplatelets of claim 3 , having an average platelet diameter of from about 40 nm to about 120 nm and an average thickness of from about 1 nm to about 4 nm.5. Nanoplatelets of claim 3 , having an average BET specific surface area of from about 100 m/g to about 150 m/g claim 3 , and an average zeta potential of from about +60 mV to about −60 mV.6. Nanoplatelets of claim 3 , having an average BET specific surface area of from about 100 m/g to about 150 m/g claim 3 , and an average zeta potential of from about −4 mV to about −5 mV.7. Nanoplatelets of claim 1 , comprising at least one metal hydroxide.8. Nanoplatelets of claim 1 , comprising at least one metal oxide.9. Nanoplatelets of claim 1 , in a form of rolled nanotubes.10. Nanoplatelets having an average platelet diameter of from about 30 nm to about 3500 nm and an average thickness of from about 1 nm to about 400 nm claim 1 , wherein the nanoplatelet is an oxide or a hydroxide of a metal selected from the group consisting of lithium claim 1 , boron claim 1 , sodium claim 1 , potassium claim 1 , ...

Mineral Recovery Enhanced Desalination (MRED) Process for Desalination and Recovery of Commodity Minerals

A novel process for treatment of low quality or brackish water that allows increased recovery of high quality water, recovers commodity minerals and reduces the volume of water and mass of solids that are disposed from the process.

Method for the production of lithium carbonate from salt brines

A process for extracting lithium from lithium-bearing salt brines including: (i) subjecting a feed brine to a primary evaporation step using mechanical evaporators, to form a first concentrated brine and sodium chloride; (ii) separating the sodium chloride in a salt removal step; (iii) reacting lime with the first concentrated brine in a liming step to precipitate out and discard magnesium and sulphate ions and other contaminants and to form a limed brine; (iv) subjecting the limed brine to a secondary evaporation step, to form a second concentrated brine and precipitating calcium chloride; (v) separating the calcium chloride from the second concentrated brine; (vi) reacting sodium sulphate with the second concentrated brine to precipitate out and discard calcium sulphate, to form a lithium-rich brine; (vii) reacting soda ash with the lithium rich brine thereby forming a precipitate of lithium carbonate; and (viii) separating the lithium carbonate.

PRESSURE-SENSITIVE ADHESIVE SHEET FOR COVERING

A pressure-sensitive adhesive sheet for covering according to an embodiment of the present invention includes a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000, an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000, and carbon black. The content of the non-crosslinked rubber component is 25% to 65% by mass, the content of the oil component is 35% to 75% by mass, and the content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass. 1. A pressure-sensitive adhesive sheet for covering comprising:a non-crosslinked rubber component having a maximum peak of the molecular weight distribution in the range of 50,000 to 3,000,000;an oil component having a maximum peak of the molecular weight distribution in the range of 1,000 to 20,000; andcarbon black,wherein the content of the non-crosslinked rubber component is 25% to 65% by mass,the content of the oil component is 35% to 75% by mass, andthe content of the carbon black relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is 1 to 40 parts by mass.2. The pressure-sensitive adhesive sheet for covering according to claim 1 , further comprising an inorganic filler other than the carbon black claim 1 ,wherein the content of the inorganic filler relative to 100 parts by mass of the total of the non-crosslinked rubber component and the oil component is more than 0 parts by mass and 200 parts by mass or less.3. The pressure-sensitive adhesive sheet for covering according to claim 2 , wherein the inorganic filler is at least one selected from the group consisting of calcium carbonate claim 2 , talc claim 2 , clay claim 2 , aluminum hydroxide claim 2 , and magnesium hydroxide.4. The pressure-sensitive adhesive sheet for covering according to claim 1 , ...

Vacuum heat insulating material

A vacuum heat insulating material including a core material and a sheath for covering the core material, the interior thereof being sealed to maintain a reduced pressure therein, wherein the sheath includes a gas-barrier laminate that has at least a heat-melt-adhesion layer, a vapor-deposited layer and a gas-barrier material, and the gas-barrier material has a gas-barrier layer that includes a polycarboxylic acid type polymer and contains a monovalent metal element in an amount of not more than 1.4% by weight, a polyvalent metal element in an amount of at least not less than 5.0% by weight, and a nitrogen element in an amount of 0.01 to 3.0% by weight per the total weight of nitrogen and carbon. The vacuum heat insulating material has excellent heat insulating capability and gas-barrier property, and sustains excellent heat insulating capability over extended periods of time as well as excellent flexibility and waterproof property.

COLOR-TREATED BASE MATERIAL AND BASE MATERIAL COLOR TREATMENT METHOD THEREFOR

The present invention relates to a color-treated base material and a base material color treatment method therefor. The base material is capable of improving the homogeneity and corrosion resistance of the surface of the base material and realizing a uniform color in a short period of time. Accordingly, the color-treated base material can be usefully used in the fields of building exterior materials, automobile interiors, and particularly electrical and electronic component materials, such as mobile phone case components, in which a magnesium material is used. 1. A color-treated substrate , comprising:a matrix containing magnesium; anda film formed on the matrix and containing a compound represented by the following Chemical Formula 1, {'br': None, 'sub': 'm', 'M(OH)\u2003\u2003[Chemical Formula 1]'}, 'wherein, at any three points included in an arbitrary region with a width of 1 cm and a length of 1 cm which is present on the film, an average color coordinate deviation (ΔL*, Δa*, Δb*) of each point satisfies one or more conditions of ΔL*<0.6, Δa*<0.6 and Δb*<0.5where M includes one or more selected from the group consisting of Na, K, Mg, Ca and Ba, and m is 1 or 2.2. The color-treated substrate according to claim 1 , wherein an average thickness of the film is in a range of 50 nm to 2 μm.3. The color-treated substrate according to claim 1 , wherein the film has a patterned structure which realizes an intended pattern on the matrix containing magnesium.4. The color-treated substrate according to claim 3 , wherein the pattern is realized by an average thickness deviation of the film satisfying a condition of the following Expression 1:{'br': None, 'i': T', '−T, 'sub': 1', '2, '5 nm≦||<2.0 μm \u2003\u2003[Expression 1]'}{'sub': 1', '2, 'where Trepresents a film average thickness of a patterned region, and Trepresents a film average thickness of a non-patterned region.'}5. The color-treated substrate according to claim 1 , wherein a condition of the following ...

PROCESS FOR OBTAINING A FORMATE FROM A REACTION MIXTURE

The invention relates to a process for obtaining a formate from a reaction mixture () in which a polyoxometallate ion, which acts as a catalyst, is in contact with an organic material at a temperature below 120° C. to produce formic acid in an aqueous solution, with the following steps. 111-. (canceled)131414. The method according to claim 12 , wherein the solution produced in step b) is concentrated in a step c) by separation of water () by reverse osmosis and/or partial or complete evaporation of the water ().141410. The method according to claim 12 , wherein further water and/or the water () separated in step c) is added to the reaction mixture () to compensate for the water separated in step a).151210. The method according to claim 12 , wherein further organic material () is added to the reaction mixture () to compensate for the reacted organic material.1618. The method according to claim 12 , wherein the maintenance of contact and/or separation as vapor () according to step a) occurs at a temperature of 15 to 119.5° C. claim 12 , in particular 40 to 95° C. claim 12 , in particular 50 to 85° C. claim 12 , in particular 55 to 85° C. claim 12 , in particular 60 to 83° C.1718. The method according to claim 12 , wherein the separation as vapor () according to step a) takes place at a pressure that is reduced with respect to atmospheric pressure.181818. The method according to claim 12 , wherein the condensation of the vapor () according to step a) occurs by introducing the vapor () into the water claim 12 , an aqueous solution claim 12 , or the aqueous solution according to step b).1924. The method according to claim 12 , wherein the hydroxide () is ammonium hydroxide claim 12 , aluminum hydroxide claim 12 , copper hydroxide claim 12 , nickel hydroxide claim 12 , an alkaline earth metal hydroxide claim 12 , an alkali metal hydroxide claim 12 , calcium hydroxide claim 12 , magnesium hydroxide claim 12 , sodium hydroxide claim 12 , potassium hydroxide claim 12 , or ...

CARBON DIOXIDE SEQUESTRATION WITH MAGNESIUM HYDROXIDE AND REGENERATION OF MAGNESIUM HYDROXIDE

Embodiments of the present disclosure are directed to systems and methods of removing carbon dioxide from a gaseous stream using magnesium hydroxide and then regenerating the magnesium hydroxide. In some embodiments, the systems and methods can further comprise using the waste heat from one or more gas streams to provide some or all of the heat needed to drive the reactions. In some embodiments, magnesium chloride is primarily in the form of magnesium chloride dihydrate and is fed to a decomposition reactor to generate magnesium hydroxychloride, which is in turn fed to a second decomposition reactor to generate magnesium hydroxide. 134.-. (canceled)35. A system for regenerating Mg(OH)in a process that reduces the amount of COcontained in a gas stream , comprising:{'sub': 2', '2', '2, 'a first decomposition reactor configured to react MgClcontaining material with steam to form first reactor products comprising Mg(OH)Cl and HCl, where the MgClcontaining material comprises a water to MgClratio of less than about 2.5:1;'}{'sub': '2', 'a second decomposition reactor configured to react Mg(OH)Cl from the first decomposition reactor with steam to form HCl and magnesium-containing products comprising mostly Mg(OH);'}{'sub': 2', '2', '2', '2', '3, 'a first absorption reactor configured to react Mg(OH)from the second decomposition reactor with CO, CaCl, and steam to form products comprising MgCland CaCO.'}36. The system of claim 35 , further comprising a gaseous feed line configured to pass a gaseous outflow from the second decomposition reactor to the first decomposition reactor claim 35 , where the gaseous outflow comprises HCl and steam to react with the MgClcontaining material.37. The system of claim 35 , further comprising a second absorption reactor claim 35 , wherein{'sub': 2', '2', '3', '2, 'the first absorption reactor is configured to admix Mg(OH)from the second decomposition reactor with COcontained in the gas stream and form MgCOand HO, and'}{'sub': 3', '2', '3', ...

Nanowire catalysts

NANOWIRES USEFUL AS HETEROGENEOUS CATALYSTS ARE PROVIDED. THE NANOWIRE CATALYSTS ARE USEFUL IN A VARIETY OF CATALYTIC REACTIONS, FOR EXAMPLE, THE OXIDATIVE COUPLING OF METHANE TO ETHYLENE. RELATED METHODS FOR USE AND MANUFACTURE OF THE SAME ARE ALSO DISCLOSED.

制备超纯氢氧化镁和氧化镁的方法

本发明涉及一种通过沉淀制备镁化合物的方法，其中：(1)将镁化合物的水溶液或悬浮液与选自碱、喔星、无机磷酸盐和碳酸的无机盐的沉淀剂混合，并使相应的镁化合物沉淀，(2)任选地，将获自步骤(1)的混合物与絮凝助剂混合，(3)任选地，由步骤(1)和任选步骤(2)的混合物将固体与液体分离，(4)在存在或不存在絮凝助剂的情况下，将移除的固体与水混合，(5)任选地，由步骤(4)的混合物将固体与液体分离，(6)任选地，重复步骤(4)和(5)一次或多次，(7)和任选地，任选在添加其他化合物之后干燥移除的固体，其特征在于通过如下程序获得步骤(1)的中的镁化合物的水溶液或悬浮液：(i)使有机镁化合物与醛或酮或其他亲电试剂反应，随后在至多为10的pH值下对反应混合物进行水预处理，或者(ii)由具有相对于所用的镁盐各自为200ppm的最高钙含量和/或钾含量的镁盐获得。

二烷氧基镁颗粒材料及其合成方法

具有D50所示的平均粒径在60～200μm范围的球状或椭圆体状的粒子形状，具有0.2～0.7g/ml的容重，内部具有多个TEM观察到的孔径为0.1～5μm的细孔，(D90—D10)/D50所示的粒度分布在1以下的二烷氧基镁的颗粒材料。向醇回流下的金属镁和醇的反应系中连续地或断续分开添加粒状的金属镁和醇使其反应。能提供不含微粉的、粒度分布均一的、大粒径的二烷氧基镁颗粒材料。

Composite flame retardant, resin composition, and molded article

본 발명의 목적은 우수한 난연성 나타내고, 수지 중에서의 분산성도 우수하고, 기계적 강도의 저하가 적은 복합 난연제를 제공하는 것에 있다. 또 본 발명은, 그 복합 난연제를 함유하는 수지 조성물을 제공하는 것에 있다. 본 발명은, (i) 100 중량부의 10 ∼ 100 ㎚ 의 평균 두께를 갖고, 2.4 ㎛ 이상의 평균 폭을 갖고, 또한 20 ∼ 120 의 평균 애스펙트비를 갖는 수산화마그네슘 입자 (A) 및 (ⅱ) 100 ∼ 900 중량부의 평균 폭이 1 ㎛ 이하이고, 20 미만의 평균 애스펙트비를 갖는 수산화마그네슘 입자 (B) 를 함유하는 복합 난연제이다. An object of the present invention is to provide a composite flame retardant exhibiting excellent flame retardancy, excellent dispersibility in resin, and low mechanical strength. Moreover, this invention provides the resin composition containing the composite flame retardant. The present invention provides (i) magnesium hydroxide particles (A) and (ii) 100 to 100 parts by weight having an average thickness of 10 to 100 nm, an average width of 2.4 µm or more, and an average aspect ratio of 20 to 120. It is a composite flame retardant containing magnesium hydroxide particles (B) having an average width of 900 parts by weight or less and an average aspect ratio of less than 20 μm.

多孔树脂膜用微孔形成剂及配合其的多孔树脂膜用组合物

本发明提供一种多孔树脂膜用微孔形成剂，其含有无机粒子，满足：(a)0.1≤D50≤1.5(μm)、(b)Da≤20(μm)、(c)3≤Sw≤60(m 2 /g)、(d)Ir≥1.0×10 5 (Ω·cm)，其中，D50是Micro-track FRA中从大粒子侧起算得到的重量累计50％的平均粒径，Da是Micro-trackFRA中的最大粒径，Sw是利用氮吸附法测定的BET比表面积，Ir是盐酸不溶成分的体积电阻率。本发明的多孔树脂膜用微孔形成剂，能够提供可获得适于电容器或电池隔板等电气用途的多孔树脂膜的树脂组合物。

使用菱镁矿制备氢氧化镁的方法

本发明涉及一种使用菱镁矿制备氢氧化镁的方法。所述方法依次包括：使用外燃式回转窑煅烧菱镁矿以获得轻烧氧化镁；测量其中硫酸钙的含量；使用蒸馏水将其制备成浆料，并向浆料中添加氯化钡并搅拌反应，滤掉液体，干燥，从而制得干燥氢氧化镁；筛掉干燥氢氧化镁的粗颗粒，从而制得低粒径的氢氧化镁；其中，用于煅烧的菱镁矿具有不大于20毫米的粒径；外燃式回转窑的一次风风速为50至55米/秒，煤粉粒度为5至10毫米；二次风风速为16至18米/秒；蒸馏水和轻烧氧化镁的比例为10:1至15：1；氯化钡与硫酸钙的摩尔比为2:1至3:1。本发明可利用外燃式回转窑煅烧菱镁矿来制得低粒度的氢氧化镁。

Magnesium hydroxides having novel structure, process for production thereof, and resin compositions containing them

A novel magnesium hydroxide of the formula Mg(OH) 2 having (i) a strain in the (101) direction of not more than 3.0 × 10 -3 , (ii) a crystallite size in the (101) direction of more than 800 A, and (iii) a specific surface area of less than 20 m 2 /g. The magnesium hydroxide, if desired as coated with anionic surfactants, is useful, for example, as fire retardants for thermoplastic synthetic resins and aqueous paints. The novel magnesium hydroxide is prepared by heating in an aqueous medium at an elevated pressure a novel basic magnesium chloride or nitrate of this invention expressed by the formula Mg(OH) 2-x A x .mH 2 O wherein A is Cl or NO 3 , x is a number of more than 0 but less than 0.2, and m is a number of 0 to 6.

Magnesium hydroxides having novel structure, process for production thereof, and resin compositions containing them

A novel magnesium hydroxide of the formula Mg(OH) 2 having (i) a strain in the <101> direction of not more than 3.0 × 10 -3 , (ii) a crystallite size in the <101> direction of more than 800 A, and (iii) a specific surface area of less than 20 m 2 /g. The magnesium hydroxide, if desired as coated with anionic surfactants, is useful, for example, as fire retardants for thermoplastic synthetic resins and aqueous paints. The novel magnesium hydroxide is prepared by heating in an aqueous medium at an elevated pressure a novel basic magnesium chloride or nitrate of this invention expressed by the formula Mg(OH) 2-x A x .sup.. mH 2 O wherein A is Cl or NO 3 , x is a number of more than 0 but less than 0.2, and m is a number of 0 to 6.

Heat deterioration resistant flame retardant, resin composition and molded articles

A flame retardant having heat deterioration resistance which is composed of magnesium hydroxide particles having (i) an average secondary particle diameter, measured by a laser diffraction scattering method, of not more than 2 µm, (ii) a specific surface area, measured by a BET method, of not more than 20 m 2 /g, and containing (iii) a total amount of iron compound and manganese compound of not more than 0.02 % by weight in terms of metals, and a synthetic resin composition comprising the same and a molded article therefrom.

复合阻燃剂、树脂组合物及成型品

本发明目的在于提供可显示优异阻燃性、在树脂中的分散性亦优异且机械强度降低较少的复合阻燃剂。此外，本发明提供含有该复合阻燃剂的树脂组合物。本发明涉及复合阻燃剂，所述复合阻燃剂含有：(i)100重量份的具有10～100nm的平均厚度、并具有2.4μm以上的平均宽度、且具有20～120的平均纵横比的氢氧化镁粒子(A)；以及(ii)100～900重量份的平均宽度为1μm以下、且具有未满20的平均纵横比的氢氧化镁粒子(B)。

Stabilised magnesium hydroxide slurries

Compositions comprising an aqueous magnesium hydroxide slurry with solids loading of 25-75 wt%, an acidic polymer or water-soluble salt thereof and a co-additive (preferably boric acid or water soluble salts thereof) are prepared. Also claimed are methods for the preparation thereof. The polydispersity and molecular weight of the polymer are well-defined. The composition has a low viscosity and remains flowable after several days.

Flame-retardant magnesium hydroxide compositions and associated methods of manufacture and use

The invention provides a submicron magnesium hydroxide particulate composition comprising a first distribution of magnesium hydroxide particles having a D50 of no more than about 0.30 µm, a D90 of no more than about 1.5 µm, and a BET surface area of at least about 35 m2/g, which can be used as a flame-retardant additive for synthetic polymers, optionally in combination with other flame-retardant additives such as nanoclays and larger-sized magnesium hydroxide particulate compositions. Polymeric resins comprising the submicron magnesium hydroxide particles and methods of manufacturing submicron magnesium hydroxide particles are also provided.

Color-treated substrate and method for coloring the substrate for the same

Improved electrochemical cell apparatus and method for separating impurities

一种从水溶液中分离杂质的电化学方法，包括以下步骤：使含有杂质离子的进料水溶液循环至含有阴极的电化学电解池的阴极室中；使酸性电解质溶液循环至包含阳极的阳极室中；阳极室与阴极室用中心室分开，形成含三个腔室的电解池，在阴极室和中心室之间有阴离子交换膜，形成一个边界，而在阳极室和中心室之间则有一个阳离子交换膜,形成另一个边界；在中心室内添加氯化物溶液或使其循环至中心室中；在阳极和阴极之间施加电流，促进阳极产生的氢离子通过阳离子交换膜迁移到中心室，促进阴极室产生的氯离子通过阴离子交换膜迁移到中心室，从而形成盐酸；其中，杂质离子以氢氧化物的形式沉淀在阴极室中，使产生的溶液中消耗掉了杂质。

Magnesium hydroxide with high crystal size ratio

FIELD: chemistry. SUBSTANCE: invention can be used to produce reinforcement material, as well as a polymer composition containing magnesium hydroxide. The method of producing magnesium hydroxide includes steps of: adding an alkali to a mixed aqueous solution of a water-soluble magnesium salt and a monobasic organic acid or an alkali metal salt and/or an ammonium salt and coprecipitation, adding an aqueous alkali solution to an aqueous solution of a water-soluble magnesium salt and coprecipitation thereof and adding a monobasic organic acid or alkali metal salt and/or ammonium salt to the obtained product; hydrothermal treatment of the obtained suspension at temperature of 100-250°C. EFFECT: invention enables to obtain magnesium hydroxide and a polymer composition containing magnesium hydroxide with a high crystal size ratio. 6 cl, 3 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 560 387 C2 (51) МПК C01F 5/22 (2006.01) C08K 3/22 (2006.01) C09K 21/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013120972/05, 11.10.2011 (24) Дата начала отсчета срока действия патента: 11.10.2011 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.11.2014 Бюл. № 32 (45) Опубликовано: 20.08.2015 Бюл. № 23 (73) Патентообладатель(и): КИОВА КЕМИКАЛ ИНДАСТРИ КО., ЛТД. (JP), СИ ВОТЕР КЕМИКАЛ ИНСТИТЬЮТ, ИНК. (JP) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.05.2013 2 5 6 0 3 8 7 (56) Список документов, цитированных в отчете о поиске: US 6676920 B1, 13.01.2004. US 3508869 А, 28.04.1970. EP 0960907 A1, 01.12.1999. RU 2196105 C2, 10.01.2003. RU 2125581 С1, 27.01.1999 R U 12.10.2010 JP 2010-229707 (72) Автор(ы): МИЯТА Сигео (JP), МАНАБЕ Хитоси (JP), КУДО Дайсуке (JP) (86) Заявка PCT: 2 5 6 0 3 8 7 R U C 2 C 2 JP 2011/073766 (11.10.2011) (87) Публикация заявки PCT: WO 2012/050222 (19.04.2012) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая ...

Method for producing ethylene from methane using a polycrystalline nanowire catalyst

Nanowire catalysts and methods for their use and preparation

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the nanowires are also disclosed.

Mixed calcium and magnesium compounds and methods for producing same

一种用于生产混合的钙和镁化合物的方法，所述方法包括利用氢氧化镁悬浮液来熟化生石灰，形成固体颗粒，所述熟化通过非湿法进行形成所述固体颗粒，所述固体颗粒包括彼此紧密结合且具有均一体积分布的钙相和镁相；以及一种包括钙相和镁相的混合的化合物。

Magnesium hydroxide slurry and preparation thereof

본 발명은 분산제의 첨가 등을 특별히 필요로 하지 않아 저렴하게 제조할 수 있고, 점도가 실용상의 문제점이 발생하지 않는 범위에 있으며, 고형분 함유량이 높은 수산화마그네슘 슬러리를 제공하는 것이다. 또한, 본 발명은 평균입자경이 1 ∼ 5 ㎛, 비표면적이 10 ∼ 60 ㎡/g 의 범위내에 있고, 또한 비표면적 형상계수가 60 ∼ 180 의 범위내에 있는 수산화마그네슘 입자의 응집체가, 고형분 함유량으로서 35 ∼ 60 중량% 가 되도록 분산되어 있는 수산화마그네슘 슬러리에 관한 것이다. This invention does not require addition of a dispersing agent, etc., and can manufacture it inexpensively, The viscosity exists in the range which does not produce a practical problem, and provides the magnesium hydroxide slurry with high solid content. In the present invention, the aggregate of magnesium hydroxide particles having an average particle diameter in the range of 1 to 5 µm, specific surface area of 10 to 60 m 2 / g, and specific surface area coefficient of 60 to 180 is used as the solid content. It relates to a magnesium hydroxide slurry dispersed so as to be 35 to 60% by weight. 수산화마그네슘 슬러리 Magnesium hydroxide slurry

Magnesium hydroxide slurry and preparation method thereof

하기 특성을 갖는 마그네슘 히드록시드 슬러리: Magnesium hydroxide slurry having the following characteristics: (ⅰ) 슬러리와 잔여 물의 중량을 기준으로 40-80 중량%의 고형분 함량을 갖고; (Iii) has a solids content of 40-80% by weight based on the weight of the slurry and the residual water; (ⅱ) 하기 그룹으로부터 선택된 슬러리의 중량을 기준으로 적어도 하나의 점도변형제 또는 분산제 0.01-5.0 중량%를 함유하고: (Ii) contains 0.01-5.0% by weight of at least one viscosity modifier or dispersant based on the weight of the slurry selected from the group: (1) H 2 SO 4 , H 3 PO 4 , 규산 및 양이온으로서 알카리금속을 갖는 염을 제외한 분자량 130 amu 이하인 무기산 및 그 무기염; (1) inorganic acids and inorganic salts having a molecular weight of 130 amu or less excluding H 2 SO 4 , H 3 PO 4 , silicic acid and salts having alkali metals as cations; (2) 양이온으로서 알카리금속을 갖는 염을 제외한 하나 이상의 수산기를 함유하는 저분자량(즉, 200 amu 이하) 카르복실산 및 그 무기염; (2) low molecular weight (ie, 200 amu or less) carboxylic acids and inorganic salts thereof containing at least one hydroxyl group, excluding salts having alkali metals as cations; (3) 둘 이상의 수산기를 함유하고 분자량 500 amu 이하인 다가 알코올 또는 카보하이드레이트; 및 (3) polyhydric alcohols or carbohydrates containing two or more hydroxyl groups and having a molecular weight of 500 amu or less; And (4) 알카리토금속 산화물 및/또는 수산화물; (4) alkaline earth metal oxides and / or hydroxides; (ⅲ) 교반없이 적어도 7일 동안 침강 안정성을 갖고; (Iii) have settling stability for at least 7 days without stirring; (ⅳ) 적어도 7일 이상 139 sec -1 의 전단속도(shear rate)에서 1000cP 이하의 점도를 유지하는 특성. (Iii) maintain a viscosity of 1000 cP or less at a shear rate of 139 sec −1 for at least 7 days.

Method for obtaining additive for coatings, which improves fire-resistance, and end products

Изобретение относится к способу получения добавки для использования в покрытиях, применяемых в строительных деталях, или в качестве поверхностной отделки для материалов, подверженных возгоранию. Добавка содержит основу из гидроксида металла в качестве агента, повышающего огнестойкость и подавляющего дымность. На первой стадии способа получения осуществляют предварительную обработку агента, которая включает замещение воды, содержащейся в гидроксиде металла, на органический растворитель, совместимый с целевым покрытием, и сушку указанной твердой фазы гидроксида металла с получением сухого порошка со средним размером частиц от 1 нм до 10 мкм. На второй стадии осуществляют диспергирование сухого порошка гидроксида металла посредством мешалки. На стадии диспергирования смешивают смолу и дисперсант с указанным сухим порошком. Причем указанная смола и дисперсант совместимы с целевым покрытием, чтобы указанная добавка быстро и легко вводилась в покрытие посредством подгонки вязкости добавки под вязкость целевого покрытия. По сравнению с покрытиями, составленными с использованием других соединений, повышающих огнестойкость, у добавки по изобретению были показаны маленькие потери веса при горении в испытании по стандарту ASTM D1360. 2 н. и 20 з.п. ф-лы, 1 ил., 5 табл., 2 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 451 044 (13) C2 (51) МПК C09D C09D C08K 5/18 1/02 3/22 (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009122193/05, 03.04.2007 (24) Дата начала отсчета срока действия патента: 03.04.2007 (56) Список документов, цитированных в отчете о поиске: US 5127950 A1, 07.07.1992. US 4145404 A1, 20.03.1979. US 4879332 A1, 07.11.1989. RU 2262526 C2, 20.10.2005. 2 4 5 1 0 4 4 R U (86) Заявка PCT: MX 2007/000046 (03.04.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.06.2009 (87) Публикация заявки РСТ: WO 2008/056966 (15.05.2008) Адрес для переписки: 129090, Москва, ...

Method for manufacturing magnesium hydroxide

본 발명은 고순도 수산화마그네슘의 제조방법의 제조방법에 대한 것으로, 보다 구체적으로는 칼슘, 마그네슘 및 나트륨을 함유하는 원료 용액으로부터 하이드레이트 마그네슘 카보네이트(HMC: Hydrated Magnesium Carbonate)를 제조함과 함께, 고순도의 수산화마그네슘(Mg(OH) 2 )을 제조하는 방법에 관한 것이다. 본 발명에 의하면 본 발명에 의하면 마그네슘 및 나트륨을 함유하는 원료 용액으로부터 하이드레이트 마그네슘 카보네이트를 제조함과 함께, 99.5% 이상의 고순도의 수산화마그네슘을 제조할 수 있으므로 자원의 고부가가치를 창출할 수 있는 효과가 있다. The present invention relates to a method for producing a high-purity magnesium hydroxide, and more specifically to producing hydrated magnesium carbonate (HMC: Hydrated Magnesium Carbonate) from a raw material solution containing calcium, magnesium and sodium, A method for producing magnesium (Mg (OH) 2 ). According to the present invention, hydrated magnesium carbonate can be prepared from a raw material solution containing magnesium and sodium, and high purity magnesium hydroxide of 99.5% or more can be produced, thereby creating a high added value of resources. .

Magnesium hydroxide suspension and production thereof

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Powder breaking method and powder grinding device

本发明防止粉体粘附在粉体粉碎装置中的粉碎容器的内壁上。一种粉体粉碎装置10，包括：气密的粉碎容器20；具有向内朝粉碎容器20打开的引入口31a的粉体引入机构30，将待粉碎的粉体引入至引入口31a；粉体粉碎机构40，设置在粉碎容器20中的引入口31a的下方，用于产生高压空气以与粉体发生碰撞，从而粉碎粉体；以及分类装置50，设置在粉碎容器20中的引入口31a上方，用于筛选已粉碎的粉体，并将筛选出的粉体从粉碎容器20中导出，其中粉碎容器20的内壁由多孔衬里材料60A/60B覆盖，衬里材料60A/60B的每个孔65经由位于内壁20a与衬里材料60A/60B之间的间隙61A/61B与供气装置62连通。

Spherical magnesium hydroxide particles and magnesium oxide particles having a large specific surface area, as well as method for producing same

本发明提供具有高比表面积的球状氢氧化镁颗粒和氧化镁颗粒、以及它们的制造方法。一种氢氧化镁颗粒和氧化镁颗粒，其为鳞片状的一次颗粒聚集而成的球状，利用激光衍射散射式粒度分布测定的体积累积的50%粒径（D 50 ）为1.0～5.0μm，比表面积为10m 2 /g以上。

Low viscosity aqueous dispersing composition

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Improved process for magnesium hydroxide synthesis

The present invention relates to a technology regarding a new method different to a conventional way of preparing high purity magnesium hydroxide which is variously utilized throughout the industry. The present invention relates to a dry preparation method of magnesium hydroxide with increased production yield, which prepares magnesium hydroxide having at least 95% purity by hydrating and aging light burnt magnesium burnt at a high temperature using magnesite into magnesium hydroxide by putting the same into water when the temperature drops to 40-100C, and screening the resultant product with a screen having a diameter of 2 mm.

Aerogel compositions with enhanced performance

Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described.

METHOD FOR PRODUCING AN ADDITIVE FOR COATINGS, INCREASING FIRE RESISTANCE, AND FINAL PRODUCTS

1. Способ получения добавки, повышающей огнестойкость, для введения в стандартные покрытия для защиты поверхностей, которые склонны к возгоранию, добавка имеет основу из металлического гидроксида в качестве агента, повышающего огнестойкость, и подавителя дымности, при этом указанный способ включает следующие стадии: (а) предварительную обработку носителя, повышающего огнестойкость, и (b) приготовление добавки, отличающийся тем, что на стадии (a) предварительной обработки влажность, содержащуюся в гидроксиде металла, замещают совместимым носителем с разбавителем конечного применения посредством промывки исходного гидроксида совместимым носителем. ! 2. Способ получения добавки, повышающей огнестойкость, по п.1, отличающийся тем, что промывку выполняют при помощи интенсивного перемешивания. ! 3. Способ получения добавки, повышающей огнестойкость, по п.2, отличающийся тем, что машина для перемешивания создает периферическую скорость от 5 до 30 м/с. ! 4. Способ получения добавки, повышающей огнестойкость, по п.1, отличающийся тем, что перемешивание продолжают в течение 5-30 мин. ! 5. Способ получения добавки, повышающей огнестойкость, по п.1, отличающийся тем, что после перемешивания фазам дают разделиться, а также происходит отделение жидкой фазы. ! 6. Способ получения добавки, повышающей огнестойкость, по п.1, отличающийся тем, что промывку повторяют до того момента, как будет получена остаточная влажность 5% на стадии твердого вещества. ! 7. Способ получения добавки, повышающей огнестойкость, по п.1, отличающийся тем, что носитель для промывки выбирают между растворителями или разбавителями, которые используются в стандарт� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 122 193 (13) A (51) МПК C09D 5/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009122193/05, 03.04.2007 (71) Заявитель(и): СЕРВИСЬОС ИНДУСТРИАЛЕС ПЕНЬОЛЕС, С.А. ДЕ К.В. (MX) (30) Конвенционный приоритет: 10.11.2006 MX ...

Method of obtaining lithium concentrate from lithium-bearing natural brines and processing thereof into lithium chloride or lithium carbonate

FIELD: chemistry. SUBSTANCE: invention can be used in chemical industry. Method for obtaining a lithium concentrate from natural lithium brines and processing said concentrate into lithium chloride or lithium carbonate comprises preparation of a primary lithium concentrate from a natural lithium brine by sorption enrichment of the natural lithium brine in sorption-desorption modules consisting of columns filled with a fixed bed of a granular sorbent based on chlorine-containing varieties of a double hydroxide of aluminum and lithium. Primary lithium concentrate is converted to a secondary lithium concentrate by concentration in evaporative pools or reverse-osmotic concentration-desalination. Secondary lithium concentrate is used for further production of lithium chloride or lithium carbonate. EFFECT: invention increases recovery of lithium chloride during sorption enrichment of natural lithium brines, improves the quality of lithium chloride and lithium carbonate obtained, widens the range of lithium-bearing hydromineral raw materials suitable for the production of lithium compounds, by using lithium-bearing natural brines containing suspended particles. 4 cl, 4 dwg, 7 tbl, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 968 C1 (51) МПК C01D 15/04 (2006.01) C01D 15/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01D 15/04 (2006.01); C01D 15/08 (2006.01); B01J 47/00 (2006.01) (21)(22) Заявка: 2017113039, 14.04.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 04.07.2018 (45) Опубликовано: 04.07.2018 Бюл. № 19 Адрес для переписки: 630075, г. Новосибирск 75, ул. Б. Хмельницкого, 2, ООО "Экостар-Наутех" (73) Патентообладатель(и): Общество с ограниченной ответственностью (ООО) "Экостар-Наутех" (RU) (56) Список документов, цитированных в отчете о поиске: RU 2516538 C2, 20.05.2014. RU C 1 2 6 5 9 9 6 8 R U (54) Способ получения литиевого концентрата из литиеносных природных рассолов и ...

A method of removing iron from aqueous magnesium

PURPOSE: Provided is a method for removing iron ingredient from magnesium hydroxide prepared from seawater to improve the purity of the magnesium hydroxide by removing the iron ingredient through pH control. CONSTITUTION: The method comprises steps of: (i) putting magnesium hydroxide in an aqueous solution of sulfuric acid having not more than pH 2 to react; (ii) putting an oxidizing agent in the product of the step (i); (iii) further putting the magnesium hydroxide in the product of the step (ii) to control pH to be 4-6; and (iv) filtering the product of the step (iii) to remove precipitates.

Preparation of magnesium hydroxide powder from magnesite ore, and magnesium hydroxide powder obtained therefrom

The present invention relates to a method for preparing magnesium hydroxide powder from magnesite ore, including the steps of: (1) a crushing step in which magnesite ore is crushed; (2) a calcination step in which the crushed product is calcinated; (3) an exudation step in which the calcinated product is added to an acid solution to exudate magnesium; (4) an impurity-removing step in which insoluble impurities are removed; (5) a hydrolysis step in which the filtered solution is hydrolyzed; (6) a separation step in which magnesium hydroxide precipitated through hydrolysis is separated; and (7) a drying step in which the separated magnesium hydroxide is dried. According to the present invention, it is possible to prepare magnesium hydroxide powder from magnesite ore under a simple processing condition by using a simple process flow within a short processing time, and thus to provide high processing efficiency and cost-efficiency.

Novel magnesium hydroxide-based solid solution, and resin composition and precursor for highly active magnesium oxide which include same

本发明提供一种氢氧化镁系固溶体，其一次颗粒及二次颗粒小于现有的氢氧化镁(Mg(OH) 2 )，可提高与酸的反应性，提高树脂的阻燃性及机械强度，另外，其可以成为非沉淀性浆体，可获得与液体相同的操作性。本发明的氢氧化镁系固溶体由下述式(1)表示。Mg(OH) 2‑x R x (1)其中，R为一元有机酸，x为0＜x＜1。上述氢氧化镁系固溶体是氧化镁(MgO)前驱物。本发明还提供一种合成树脂用阻燃剂，其有效成分是上述氢氧化镁系固溶体。本发明还提供一种合成树脂组合物及其成型品，其中，相对于100重量份的(a)合成树脂，配合0.1～50重量份的(b)上述氢氧化镁系固溶体。

Eco-friendly polymer mortar flooring composition and constructing method using The same

본 발명은 2액형 수용성 폴리머 수지를 포함하는 하도용 바닥재 조성물, 및 2액형 수용성 폴리머 수지와 무기계 결합재를 1: 0.5 내지 2 중량비율로 포함하는 상도용 바닥재 조성물을 포함하는 친환경 폴리머 모르타르 바닥재 조성물로서; 상기 2액형 수용성 폴리머 수지는 수용성 에폭시 수지 10 내지 50 중량%, 계면활성제 0.5 내지 10 중량%, 성능개선 혼화재 1 내지 20 중량% 및 잔량의 물을 포함하는 주제와; 아민 화합물 1 내지 30 중량% 및 잔량의 물을 포함하는 경화제를 2 내지 5: 1의 부피비율로 포함하는 것이고; 상기 성능개선 혼화재는 에틸렌 글리콜 디글리시딜 에테르 100 중량부에 대하여, 1,4-시클로헥산디메탄올디글리시딜에테르 10 내지 30 중량부, 하기 화학식 1로 표시되는 실란 화합물 1 내지 15 중량부, 하기 화학식 2로 표시되는 티올 화합물 1 내지 15 중량부 및 풀루란 아세테이트 미립구 0.1 내지 5 중량부를 포함하는 것이고; 상기 무기계 결합재는 보통 포틀랜드 시멘트 100 중량부에 대하여, 석회석 미분말 10 내지 30 중량부, 수산화마그네슘 5 내지 15 중량부, 질화알루미늄 1 내지 10 중량부 및 규사 80 내지 120 중량부를 포함하는 것을 사용함으로써; 부착력이 우수하여, 들뜸, 박리 및 탈락을 방지할 수 있고, 횡력에 의한 찢김 저항성, 내충격성 및 내구성이 우수하며, 휘발성 유기 화합물을 사용하지 않고 유해한 중금속이 검출되지 않는 친환경 폴리머 모르타르 바닥재 조성물 및 이를 이용한 바닥재 시공방법에 관한 것이다. [화학식 1] 상기 식에서, R은 탄소수 1 내지 6의 알킬기이고, n은 0 내지 5의 정수이다. [화학식 2] 상기 식에서, m은 1 또는 2의 정수이다. The present invention relates to an eco-friendly polymer mortar flooring composition comprising a flooring composition for undercoating comprising a two-component water-soluble polymer resin, and a topcoating composition comprising a two-component water-soluble polymer resin and an inorganic binder in a weight ratio of 1: 0.5 to 2; The two-component water-soluble polymer resin may include a main agent comprising 10 to 50% by weight of a water-soluble epoxy resin, 0.5 to 10% by weight of a surfactant, 1 to 20% by weight of a performance improvement admixture, and the remainder of water; 1 to 30% by weight of the amine compound and a curing agent including the remaining amount of water in a volume ratio of 2 to 5:1; The performance improvement admixture is based on 100 parts by weight of ethylene glycol diglycidyl ether, 10 to 30 parts by weight of 1,4-cyclohexanedimethanol diglycidyl ether, 1 to 15 parts by weight of a silane compound represented by the following Chemical Formula 1 , 1 to 15 parts by weight of the thiol compound represented by the following formula (2) and 0.1 to 5 parts by weight of pullulan ...

Method of producing magnesium oxide doped with fluoride

Method for preparing magnesium hydroxide from magnesite and magnesium hydroxide prepared with method

本发明涉及一种使用菱镁矿制备氢氧化镁的方法以及由此制得的氢氧化镁。所述方法依次包括：使用外燃式回转窑煅烧菱镁矿以获得轻烧氧化镁；测量其中硫酸钙的含量；使用蒸馏水将其制备成浆料，并向浆料中添加氯化钡并搅拌反应，滤掉液体，干燥，从而制得干燥氢氧化镁；筛掉干燥氢氧化镁的粗颗粒，从而制得低粒径的氢氧化镁；其中，用于煅烧的菱镁矿具有不大于20毫米的粒径；外燃式回转窑的一次风风速为50至55米/秒，煤粉粒度为5至10毫米；二次风风速为16至18米/秒；蒸馏水和轻烧氧化镁的比例为10:1至15：1；氯化钡与硫酸钙的摩尔比为2:1至3:1。本发明还提供由所述方法制得的氢氧化镁。本发明可利用外燃式回转窑煅烧菱镁矿来制得低粒度的氢氧化镁。

Magnesium hydroxide microparticles, magnesium oxide microparticles, and method for producing each

입자경이 작으며 또한 균일한 고순도 수산화 마그네슘 미립자 및 고순도 산화 마그네슘 미립자를 제공한다. BET 비표면적이 5m 2 /g 이상, 레이저 회절 산란식 입도 분포 측정에 의한 체적기준의 누적 50% 입자경(D 50 )이 0.1~0.5㎛, 레이저 회절 산란식 입도 분포 측정에 의한 체적기준의 누적 10% 입자경(D 10 )과 체적기준의 누적 90% 입자경(D 90 )의 비D 90 /D 10 이 10 이하인 순도 99.5질량% 이상의 수산화 마그네슘 미립자; 및 BET 비표면적이 5m 2 /g 이상, 레이저 회절 산란식 입도 분포 측정에 의한체적기준의 누적 50% 입자경(D 50 )이 0.1~0.5㎛, 레이저 회절 산란식 입도 분포 측정에 의한 체적기준의 누적 10% 입자경(D 10 )과 체적기준의 누적 90% 입자경(D 90 )의 비D 90 /D 10 이 10 이하인 순도 99.5질량% 이상의 산화 마그네슘 미립자이다. High-purity magnesium hydroxide fine particles and high purity magnesium oxide fine particles having a small particle diameter and being uniform. A cumulative 50% particle size (D 50 ) of 0.1 to 0.5 탆 on a volume basis by a laser diffraction scattering type particle size distribution, a cumulative volume basis of 10 by a laser diffraction scattering particle size distribution measurement, a BET specific surface area of 5 m 2 / Magnesium hydroxide fine particles having a purity of 99.5% by mass or more and having a ratio D 90 / D 10 of a% particle diameter (D 10 ) to a cumulative 90% particle diameter (D 90 ) on a volume basis of 10 or less; And a BET specific surface area of 5 m 2 / g or more, a cumulative 50% particle size (D 50 ) of 0.1 to 0.5 μm on a volume basis by a laser diffraction scattering type particle size distribution measurement, an accumulation of volume standards by laser diffraction scattering particle size distribution measurement 10% particle diameter (D 10) and the ratio D 90 / D 10 is not more than a 10-purity magnesium oxide fine particles of 99.5% by mass or more of the volume-reduced cumulative 90% particle size (D 90) of.

Method for producing magnesium oxide

СПОСОБ ПОЛУЧЕНИЯ ОКИСИ МАГНИЯ из хлормагниевых растворов путем осаждени  гидроокиси магни  этаноламином , фильтрации, промывки и прокаливани  осадка, отличающийс   тем, что, с целью повьппени  скорости фильтрации за счет увеличени  размера частиц осадка гидроокиси магни , при осаждении гидроокиси магни  используют моноэтаноламин. A method for producing magnesia oxides from chlorine magnesium solutions by precipitating magnesium hydroxide with ethanolamine, filtering, washing and calcining the precipitate, characterized in that mono ethanol is used to precipitate the filtration rate by increasing the size of magnesium hydroxide precipitate

Nanowire catalysts and methods for their use and preparation

提供了用作多相催化剂的纳米线。所述纳米线催化剂可用于各种催化反应，例如，甲烷与C2烃类的氧化偶联。还公开了所述纳米线的应用和制造的相关方法。

Patent JPS5133520B2

A Method of Producing High Effective Magnesium Hydroxide

PURPOSE: A process for preparing magnesium hydroxide with high desulfurization efficiency by hydrating pulverized soft burned magnesite at 120 to 180 deg.C in pressure vessel is provided. CONSTITUTION: After pulverizing soft burned magnesite with the size below 45 micron, hydrating it at 120 to 180deg.C in pressure vessel. Hydrolysis is performed for 20 to 120 minutes. The concentration of magnesium hydroxide is 30 to 70 wt.%. Calcium ligno sulfonate or Sodium ligno sulfonate or their mixture is added to soft burned magnesite in an amount of 0.5 to 3 wt.%.

CONVENIENT LIQUID-MAGNESIUM SUSPENSION

1. Водная известково-магнезиальная суспензия, содержащая твердые частицы, соответствующие общей формуле aCa(OH)·bMg(OH)·cMgO, в которой a, b и c представляют собой массовые доли, сумма которых составляет от 90 до 100%, в водной среде с концентрацией, превышающей или равной 200 г/кг, и добавку, которая одновременно представляет собой средство, уменьшающее вязкость, и средство, замедляющее повышение вязкости, отличающаяся тем, что указанная добавка представляет собой фосфонат или фосфоновую кислоту, выбранные из фосфорорганических, азотированных или неазотированных кислот или их солей и более предпочтительно из группы, состоящей из аминоалкиленполифосфоновых кислот, в которых алкилен содержит от 1 до 20 атомов углерода, гидроксиалкилиденполифосфоновых кислот, в которых алкилиден содержит от 2 до 50 атомов углерода, фосфоноалканполикарбоновых кислот, в которых алкан содержит от 3 до 12 атомов углерода, а молярное отношение радикала алкилфосфоновой кислоты к радикалу карбоновой кислоты находится в интервале от 1:2 до 1:4, их производных, таких как их соли, и их смесей.2. Суспензия по п. 1, в которой фосфонат или фосфоновая кислота содержит в кислой форме от 2 до 8 и предпочтительно от 2 до 6 характеристических групп типа "фосфоновая кислота".3. Суспензия по п. 1 или 2, в которой фосфонат или фосфоновая кислота выбраны из группы, состоящей из амино-трис-метиленфосфоновой кислоты (ATMP), 1-гидроксиэтилиден-1,1-дифосфоновой кислоты (HEDP), этилендиамин-тетракис-метиленфосфоновой кислоты (EDTMP), гексаметилендиамин-тетракис-метиленфосфоновой кислоты (HDTMP), диэтилентриамин-пентакис-метиленфосфоновой кислоты (DTPMP), 2-гидроксиэтиламино-N,N-бис-метиленфосфоновой кислоты (HEMPA), 2-фосфоно-1,2,4-бутантрикарбоновой кислоты (PBTC), РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 117 616 A (51) МПК C01F 5/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015117616, 25.10.2013 (71) Заявитель(и): С.А. ЛУАСТ РЕШЕРШ Э ...

Magnesium hydroxide slurry and method for manufacturing the same

하기 특성을 갖는 마그네슘 히도록시드 슬러리 : (i) 슬러리와 잔여 물의 중량을 기준으로 40-80중량%의 고형분 함량을 갖고; (ⅱ) 하기 그룹으로부터 선택된 슬러리의 중량을 기준으로 적어도 하나의 점도변형제 또는 분산제 0.01-5.0중량%를 함유하고 : (1) H 2 SO 4 , H 3 PO 4 , 규산 및 양이온으로서 알카리금속을 갖는 염을 제외한 분자량 130amu 이하인 무기산 및 그 무기염; (2) 양이온으로서 알카리금속을 갖는 염을 제외한 하나 이상의 수산기를 함유하는 저분자량(즉, 200amu 이하) 카르복실산 및 그 무기염; (3) 둘 이상의 수산기를 함유하고 분자량 500amu 이하인 다가 알코올 또는 카보하이드레이트; 및 (4) 알카리토금속 산화물 및/ 또는 수산화물; (ⅲ) 교반없이 적어도 7일 동안 침강 안정성을 갖고; (ⅳ) 적어도 7일 아상 139sec -1 의 전단속도(shear rate)에서 1000cP 이하의 점도를 유지하는 특성.

Fine magnesium hydroxide particles

本発明の目的は、ナノ粒子レベルの粒子径を有し、炭素含量が少なく白色度の高く、透明性の高い微細水酸化マグネシウム粒子およびその製造方法を提供することにある。本発明は、周波数解析で測定された平均二次粒子径が１〜１００ｎｍであり、かつ炭素含量が０．９重量％未満の微細水酸化マグネシウム粒子である。 An object of the present invention is to provide fine magnesium hydroxide particles having a particle size at the nanoparticle level, low carbon content, high whiteness, and high transparency, and a method for producing the same. The present invention is fine magnesium hydroxide particles having an average secondary particle diameter measured by frequency analysis of 1 to 100 nm and a carbon content of less than 0.9% by weight.

Method for preparing a fire retardant additive for coatings and resulting products

본 발명은 난연성이 개선된 코팅제를 제공하기 위해서 코팅제에 융합될 금속 수산화물, 특히 수산화마그네슘을 기재로 하는 첨가제의 제조 방법에 관한 것이다. 수산화물의 평균 입자 직경은 1 나노미터 내지 10 마이크로미터 범위에서 선택되며, 바람직하게는 매우 작은 범위를 갖는다. 수산화마그네슘은 효율적으로 분산되고 코팅제의 바람직한 특성을 변화시키지 않도록 세척 및 분산 처리된다. 처리에 사용되는 물질 및 조건, 및 입자 크기는 코팅제의 유형에 따라서 선택된다. 최종 코팅제는 물, 용매, 오일 및 알콜을 기재로 할 수 있다. 다른 난연 화합물로 제제화된 코팅제에 비해서, 본 발명의 첨가제를 사용할 경우 화염으로 인한 중량 손실이 작다는 것이 ASTM D1360 표준 시험에서 증명되었다. The present invention relates to a process for the preparation of additives based on metal hydroxides, in particular magnesium hydroxide, to be fused to the coating to provide a coating with improved flame retardancy. The average particle diameter of the hydroxide is selected in the range of 1 nanometer to 10 micrometers, and preferably has a very small range. Magnesium hydroxide is washed and dispersed so that it is efficiently dispersed and does not change the desirable properties of the coating. The materials and conditions used for the treatment and the particle size are selected depending on the type of coating. The final coating can be based on water, solvents, oils and alcohols. Compared to coatings formulated with other flame retardant compounds, the use of the additives of the present invention has demonstrated in ASTM D1360 standard tests that the weight loss due to flame is small. 난연성 첨가제, 수산화마그네슘, 코팅제, 금속 수산화물, 바니쉬, 실러 Flame Retardant Additives, Magnesium Hydroxide, Coatings, Metal Hydroxides, Varnishes, Sealers

Active high-purity magnesium oxide and production method thereof

本发明涉及化学技术，具体涉及活性高纯度氧化镁及其生产方法。生产包括经表面处理的氧化镁的活性高纯度氧化镁的方法包括将通过镁盐水溶液与碱性试剂的反应得到的氢氧化镁进行煅烧。氢氧化镁晶体是通过连续方法在彼此分开和隔离的区域中在氢氧化镁晶种和液态石油产品的存在下产生的，碱性试剂离子与氯化镁离子的摩尔比OH – :Mg ++ 为(1.9‑2.1):1，所有区域中的温度不低于40℃，并且氢氧化镁晶体悬浮液在每个隔离区域中的停留时间为至少20分钟。本发明提供氧化镁的活性和化学纯度的提高。

FINE MAGNESIUM HYDROXIDE PARTICLES

1. Тонкодисперсные частицы гидроксида магния, имеющие средний диаметр вторичных частиц, измеренный частотным анализом, в 1-100 нм и содержание углерода менее 0,9 мас.%.2. Тонкодисперсные частицы гидроксида магния по п. 1, поверхность которых обработана, по меньшей мере, одним средством для обработки поверхности, выбранным из группы, состоящей из высших жирных кислот, титановых аппретов, силановых аппретов, алюминатных аппретов, сложных эфиров фосфорной кислоты и многоатомного спирта, сложных эфиров фосфорной кислоты и жирной кислоты и анионных поверхностно-активных веществ.3. Композиция смолы, включающая в себя 100 мас.ч. синтетической смолы и 1-95 мас.ч. тонкодисперсных частиц гидроксида магния, имеющих средний диаметр частиц, измеренный частотным анализом, в 1-100 нм и содержание углерода менее 0,9 мас.%.4. Композиция смолы по п. 3, в которой синтетическая смола представляет собой полиолефин или его сополимер.5. Формованное изделие, образованное из композиции смолы по п. 3.6. Формованное изделие по п. 5, которое представляет собой электрический провод или кабель.7. Способ получения тонкодисперсных частиц гидроксида магния по п. 1, включающий в себя взаимодействие водного раствора соли магния с сырьевым материалом щелочного вещества в динамическом микрореакторе тонкопленочного типа, имеющем зазор реакционного участка в 1-30 мкм.8. Способ получения по п. 7, в котором динамический микрореактор тонкопленочного типа имеет реакционный участок, образованный первой обрабатывающей поверхностью (1) и второй обрабатывающей поверхностью (1), обе из которых противоположны друг другу, поворачиваются относительно друг друга и могут приближаться или отдаляться относительно друг друга, и с РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C01F 5/22 (11) (13) 2014 137 149 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014137149, 08.02.2013 (71) Заявитель(и): КИОВА КЕМИКАЛ ИНДАСТРИ КО., ЛТД. (JP) Приоритет(ы): (30) Конвенционный ...

Method of purifying paraffin

Magnesium hydroxide fire retardant nanoparticles and production method thereof

本发明涉及氢氧化镁阻燃颗粒，其包括经过表面处理的颗粒，具有六角形板状结构，比表面积不超过20m 2 /g，二次颗粒的平均粒径不超过2微米，10％二次颗粒的粒径不超过0.8微米，90％二次颗粒的粒径不超过5微米，初级颗粒的长度在150到900纳米之间，厚度在15至150纳米之间。制备所述颗粒的第一步包括使氯化镁水溶液与碱性试剂在不超过100℃的温度和大气压力下反应，OH?∶Mg++离子的摩尔比为(1.9?2.1)∶1。第二步包括使Mg(OH) 2 颗粒在120?220℃的温度和0.18?2.3MPa的压力下水热重结晶2?24小时。使反应物质周期性地经受具有160?240℃温度和0.6?3.3MPa压力的过热蒸汽的流体冲击。本发明可以制备具有可调节尺寸的氢氧化镁颗粒，以将其应用于聚合物基质中而不会破坏聚合物的机械特性。

Solid metal hydroxide solution, solid metal oxide solution, and method of preparation thereof

FIELD: solid solutions. SUBSTANCE: solid solutions of hydroxide and oxide of magnesium and a metal, in particular zinc, has octahedral crystal form. Octahedron contains upper and lower parallel basal planes and six peripheral pyramidal planes. The latter are alternatively disposed upward-inclined planes and downward-inclined ones. Ratio of main-axis basal plane diameter to distance between upper and lower basal planes (diameter-to-thickness ratio in main axis direction) varies between 1 and 9. To obtain solid hydroxide solution, metal oxides' complex is vigorously stirred in aqueous medium with carboxylic or mineral acid or with their salts. Concentration of acids or salts ranges from 0.1 to 6 mol % calculated for metal oxides' complex. Resulting metal hydroxide solution is combusted at temperature at least 400 C to give solid oxide solution. EFFECT: optimized preparation procedure. 14 cl, 17 dwg согэ6бгс пы сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 196 105 ' (51) МПК? 13) С2 С 01 В 13/14, С 01 © 1/02, С 01 Е 5/02, 5/14 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98106939/12, 14.04.1998 (24) Дата начала действия патента: 14.04.1998 (30) Приоритет: 15.04.1997 УР 9-114305 (43) Дата публикации заявки: 20.02.2000 (46) Дата публикации: 10.01.2003 (56) Ссылки: ЕР 745560 АД, 04.12.1996. Ц$ 5264284 А, 23.11.1993. СВ 1442730 А, 14.07.1976. ($ 3508869 А, 28.04.1970. Ц 814604 А, 23.10.1981. (98) Адрес для переписки: 193036, Санкт-Петербург, а/я 24, "НЕВИНПАТ", пат.пов. А.В.Поликарпову рег. № 0009 (71) Заявитель: ТАТЕХО КЕМИКАЛ ИНДАСТРИЗ КО., ЛТД. (4Р) (72) Изобретатель: КУРИСУ Хирофуми (Р), ИШИБАШИ Рюйчи (.Р), КОДАНИ Тошиказу (УР), ТАКЕГАКИ Мареши (.Р) (73) Патентообладатель: ТАТЕХО КЕМИКАЛ ИНДАСТРИЗ КО., ЛТД. (4Р) (74) Патентный поверенный: Поликарпов Александр Викторович (54) ТВЕРДЫЙ РАСТВОР ГИДРОКСИДА МЕТАЛЛА, ТВЕРДЫЙ РАСТВОР ОКСИДА МЕТАЛЛА И СПОСОБЫ ИХ ПОЛУЧЕНИЯ (57) Изобретение относится к твердым растворам ...

Micropore forming agent for porous resin film and composition for porous resin film containing the agent

무기 입자로 이루어지며, (a) 0.1≤D50≤1.5(μm)(D50: 마이크로 트랙 FRA에서의 큰 입자측으로부터 기산한 중량 누계 50% 평균 입자 직경(μm)), (b) Da≤20(μm)(Da: 마이크로 트랙 FRA에서의 최대 입자 직경), (c) 3≤Sw≤60(m 2 /g)(Sw: 질소 흡착법에 의한 BET 비표면적), (d) Ir≥1.0×10 5 (Ω·cm)(Ir: 염산 불용분의 체적 저항률)를 만족하는 다공질 수지 필름용 미공 형성제. (A) 0.1 ≦ D50 ≦ 1.5 (μm) (D50: weight cumulative 50% average particle diameter (μm) calculated from the large particle side in the micro track FRA), (b) Da ≦ 20 ( μm) (Da: maximum particle diameter in microtrack FRA), (c) 3 ≦ Sw ≦ 60 (m 2 / g) (Sw: BET specific surface area by nitrogen adsorption method), (d) Ir≥1.0 × 10 5 The microporous agent for porous resin films which satisfy ((ohm * cm) (Ir: volume resistivity of hydrochloric acid insoluble content). 본 발명의 다공질 수지 필름용 미공 형성제는 콘덴서나 전지 세퍼레이터 등의 전기적 용도에 적합한 다공질 수지 필름을 제공하는 수지 조성물을 제공할 수 있다. The microporous agent for porous resin film of this invention can provide the resin composition which provides the porous resin film suitable for electrical uses, such as a capacitor | condenser and a battery separator. 무기 입자, 다공질, 수지 필름, 미공 형성제, 콘덴서, 세퍼레이터. Inorganic Particles, Porous, Resin Film, Microporous Agent, Capacitor, Separator.

Method for producing metal hydroxide sol

MAGNESIUM HYDROXIDE HAVING IMPROVED MIXTURE AND VISCOSITY CHARACTERISTICS

1. Частицы гидроксида магния, характеризующиеся ! a) величиной d50, меньшей, чем приблизительно 3,5 мкм, ! b) измеряемой по методу БЭТ удельной площадью поверхности в диапазоне от приблизительно 1 до приблизительно 15; и ! c) медианным радиусом пор r50 в диапазоне от приблизительно 0,01 до приблизительно 0,5 мкм. ! 2. Частицы гидроксида магния по п.1, где величина d50 находится в диапазоне от приблизительно 1,2 до приблизительно 3,5 мкм. ! 3. Частицы гидроксида магния по п.1, где величина d50 находится в диапазоне от приблизительно 0,9 до приблизительно 2,3 мкм. ! 4. Частицы гидроксида магния по п.1, где величина d50 находится в диапазоне от приблизительно 0,5 до приблизительно 1,4 мкм. ! 5. Частицы гидроксида магния по п.1, где величина d50 находится в диапазоне от приблизительно 0,3 до приблизительно 1,3 мкм. ! 6. Частицы гидроксида магния по п.2, где измеряемая по методу БЭТ удельная площадь поверхности находится в диапазоне от приблизительно 2,5 до приблизительно 4 м2/г или в диапазоне от приблизительно 1 до приблизительно 5. ! 7. Частицы гидроксида магния по п.3, где измеряемая по методу БЭТ удельная площадь поверхности находится в диапазоне от приблизительно 3 до приблизительно 7 м2/г. ! 8. Частицы гидроксида магния по п.4, где измеряемая по методу БЭТ удельная площадь поверхности находится в диапазоне от приблизительно 7 до приблизительно 9 м2/г или в диапазоне от приблизительно 6 до приблизительно 10 м2/г. ! 9. Частицы гидроксида магния по п.5, где измеряемая по методу БЭТ удельная площадь поверхности находится в диапазоне от приблизительно 8 до приблизительно 12 м2/г или в диапазоне от приблизительно 9 до приблизительно 11 м2/г. ! 10. Частицы гидроксида магния по п.7, гд РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 143 217 (13) A (51) МПК C01F 5/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008143217/15, 13.03.2007 (71) Заявитель(и): АЛЬБЕМАРЛ КОРПОРЕЙШН (US) (30) ...

Preparation method and application of hexagonal flaky magnesium hydroxide

本发明提供了一种六角片状氢氧化镁的制备方法，将氢氧化镁、分散剂和水混合搅拌，配成悬浮液，装入高压反应釜中反应，反应后产物经过滤、洗涤、干燥、研磨，得到六角片状氢氧化镁，其中，所述的分散剂为聚乙烯吡咯烷酮或十二烷基磺酸钠。本发明以普通氢氧化镁为原料，SDS或PVP为分散剂，反应流程简单、能耗低、清洁环保、生产成本低，所得产品为形貌可控、规整的六角片状氢氧化镁。

Method for producing magnesium hydroxide particles

Nanowire catalysts and methods for their use and preparation

Nanowires useful as heterogeneous catalysts are provided. The nanowire catalysts are useful in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons. Related methods for use and manufacture of the nanowires are also disclosed.

Production of ethylene with nanowire catalysts

Methods for producing ethylene using nanowires as heterogeneous catalysts are provided. The method includes, for example, an oxidative coupling of methane catalyzed by nanowires to provide ethylene.