СПОСОБ РАЗРУШЕНИЯ МАСЛОЖИРОВЫХ КОНГЛОМЕРАТОВ

Изобретение относится к очистке трубопроводов, в частности канализационных трубопроводов, от конгломератов, содержащих масла, жиры, парафины, воск, механические примеси и др. Способ проводят диспергированием масложировых конгломератов и их удалением при непосредственном взаимодействии в реакционном объеме растворов А и Б, при этом раствор А содержит, мас.%: ацетат аммония 10,0-35,0, уксусную кислоту 1,0-10,0, поверхностно-активное вещество 0,01-0,5 и воду остальное, а раствор Б содержит, мас.%: нитрит натрия 15-40 и воду остальное. Технический результат: повышение эффективности разрушения масложировых конгломератов и, как следствие, повышение эффективности очистки трубопроводов за счет выделяющегося тепла, приходящегося на единицу объема реакционной смеси.

СПОСОБ ОЧИСТКИ ПОВЕРХНОСТЕЙ МЕДИ И ЕЕ СПЛАВОВ ОТ ПРОДУКТОВ КОРРОЗИИ И ОКИСЛЕНИЯ СОЕДИНЕНИЯМИ МЕДИ (II)

FIELD: technological processes. SUBSTANCE: invention relates to cleaning elements of process and household equipment from copper and its alloys from corrosion products and products of oxidation of copper compounds (II) and can be used in various branches of practical activity, in scientific research and in analytical control. Method involves treatment of copper and its alloys surface with aqueous acid solution in the presence of oxidant, in form of air oxygen, and as acid is water solution of 0.033 n., 0.053 n., 0.06 n., 0.07 n, n 0.237 or 0.47 n. of nitric acid. Cleaned surface is fully submerged into said aqueous solution of acid, in which intensive mixing is conducted, stirring and air barbotage or air barbotage, wherein acid flow rate and accumulation of copper (II) compounds are controlled, and after treatment waste reaction mixture is carefully drained, metal or alloy are washed once or twice with distilled water and dried. EFFECT: method enables effective and fast cleaning of copper and its alloys surface from corrosion and oxidation products, which include copper oxides (I) and (II) and copper (II) hydroxide, wherein providing removal of deposits only located on surface of copper and its alloys without affecting the metal and without changing relief and structure of its surface. 1 cl, 1 tbl, 13 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 604 162 C2 (51) МПК C23G 1/02 (2006.01) C23F 1/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014106143/02, 19.02.2014 (24) Дата начала отсчета срока действия патента: 19.02.2014 (43) Дата публикации заявки: 27.08.2015 Бюл. № 24 (45) Опубликовано: 10.12.2016 Бюл. № 34 (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) (RU) 2 6 0 4 1 6 2 R U (54) СПОСОБ ОЧИСТКИ ПОВЕРХНОСТЕЙ МЕДИ И ЕЕ СПЛАВОВ ОТ ПРОДУКТОВ КОРРОЗИИ И ОКИСЛЕНИЯ СОЕДИНЕНИЯМИ МЕДИ ( ...

СПОСОБ ОЧИСТКИ ПОВЕРХНОСТИ ОТ ЗАГРЯЗНЕНИЙ

Изобретение относится к очистке поверхностей от накипи, а также от любых других загрязнений, включающих соли жесткости, соли тяжелых металлов, органику, соединения алюминия и железа. Способ может быть использован для очистки котлов, фильтров, бытовых нагревателей, посуды. Способ включает обработку при нагревании моющим водным раствором, включающим уксусную кислоту, гидроксиды алюминия или железа или их смесь. Гидроксид алюминия вводят в количестве 100 - 660 мл с рН 6,5, уксусную кислоту ледяную от 10 до 45 мл и воду до 1 л. рН моющего водного раствора при введении гидроксида алюминия составляет более 3, при введении гидроксида железа или смеси гидроксидов алюминия и железа более 6. Минимальная температура нагревания 75oС. Обработку при кипячении ведут с удалением твердой пены, появляющейся при растворении накипи. Технический результат: создание способа, гарантированно работающего при любом виде загрязнений и исключающего разъедание кислотой поверхности металла. 6 з.п. ф-лы, 1 ил.

РАСТВОР ДЛЯ ОЧИСТКИ ПРЕСС-ФОРМ ОТ НАГАРА

Изобретение относится к составам для очистки пресс-формы от нагара. Предлагаемый раствор может быть использован в производстве ламинированных плит для снятия нагара меламино-карбамидной смолы с пресс-прокладок. Раствор для очистки пресс-форм от нагара содержит воду и очищающие компоненты - ионы Cr6+, бифторид калия и азотную кислоту при следующем соотношении компонентов, %: соединения Cr6+ (в пересчете на CrO3 ) 2-3; бифторид калия KHF2 4-6; азотная кислота 3,5-5,0; вода остальное. Благодаря данному очищающему раствору значительно уменьшается время очистки при сохранении хорошего качества очистки. 1 з.п.ф-лы, 1 табл.

СПОСОБ ПРОТРАВЛИВАНИЯ НЕРЖАВЕЮЩЕЙ СТАЛИ

Способ может быть использован в металлургии для протравливания нержавеющей стали. Подлежащий обработке материал помещают в ванну, поддерживаемую при 30 - 70oС, имеющую следующий первоначальный состав: H2SO4 по меньшей мере 150 г/л, Fe3+ по меньшей мере 15 г/л; HF по меньшей мере 40 г/л; H2O2 (добавленная с известными стабилизаторами) 1-20 г/л; эмульгаторы, смачивающие агенты, полирующие агенты, ингибиторы кислотной коррозии, при этом в ванну непрерывно подают воздух с расходом, равным по меньшей мере 3 м3/ч на кубометр ванны, и количество стабилизированной Н2О2, регулируемое для получения окислительно-восстановительного потенциала ванны, равного или большего 250 мВ; снижаются расходы, улучшается экология, повышается качество протравливания. 10 з.п.ф-лы, 3 ил., 10 табл.

ОБЕЗЖИРИВАЮЩАЯ КОМПОЗИЦИЯ, ПРИМЕНЕНИЯ ДЛЯ ОБЕЗЖИРИВАНИЯ И ОЧИСТКИ ОТ ЗАГРЯЗНЕНИЙ ПОВЕРХНОСТИ ТВЕРДЫХ ТЕЛ И СПОСОБ ОБЕЗЖИРИВАНИЯ ПОВЕРХНОСТИ

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 104 466 (13) A C 11 D 3/02 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004104466/04, 16.07.2002 (30) Ïðèîðèòåò: 17.07.2001 FR 01/09519 (43) Äàòà ïóáëèêàöèè çà âêè: 10.07.2005 Áþë. ¹ 19 (86) Çà âêà PCT: FR 02/02524 (16.07.2002) (74) Ïàòåíòíûé ïîâåðåííûé: Âûñîöêà Íèíà Íèêîëàåâíà Àäðåñ äë ïåðåïèñêè: 103735, Ìîñêâà, óë. Èëüèíêà, 5/2, ÎÎÎ "Ñîþçïàòåíò", Í.Í.Âûñîöêîé (54) ÎÁÅÇÆÈÐÈÂÀÞÙÀß ÊÎÌÏÎÇÈÖÈß, ÏÐÈÌÅÍÅÍÈß ÄËß ÎÁÅÇÆÈÐÈÂÀÍÈß È Î×ÈÑÒÊÈ R U Ôîðìóëà èçîáðåòåíè 1. Æèäêà îáåçæèðèâàþùà êîìïîçèöè , ñîäåðæàùà âîäíûé ðàñòâîð àçîòíîé êèñëîòû, âêëþ÷àþùèé ïî ìåíüøåé ìåðå, îäíî ïåðâîå, ýìóëüãèðóþùåå íåèîíîãåííîå ïîâåðõíîñòíîàêòèâíîå âåùåñòâî, ñîñòî ùåå èç ïîëèýòîêñèëèðîâàííîãî æèðíîãî ñïèðòà, è ïî ìåíüøåé ìåðå, îäíî âòîðîå, ñìà÷èâàþùåå íåèîíîãåííîå ïîâåðõíîñòíî-àêòèâíîå âåùåñòâî, ñîñòî ùåå èç ñîïîëèìåðà ýòèëåíîêñèäà è ïðîïèëåíîêñèäà. 2. Êîìïîçèöè ïî ïóíêòó 1, â êîòîðîé êîíöåíòðàöè àçîòíîé êèñëîòû â âîäíîì ðàñòâîðå ñîñòàâë åò 0,1-5 ìîë.ë -1. 3. Êîìïîçèöè ïî ëþáîìó èç ï.1 èëè 2, â êîòîðîé îáùà êîíöåíòðàöè ïîâåðõíîñòíîàêòèâíûõ âåùåñòâ ñîñòàâë åò 1-20 ã.ë -1. 4. Êîìïîçèöè ïî ï.1, â êîòîðîé ïåðâîå, ýìóëüãèðóþùåå ïîâåðõíîñòíî-àêòèâíîå âåùåñòâî ïðåäñòàâë åò ñîáîé ïîëèýòîêñèëèðîâàííûé æèðíûé ñïèðò ôîðìóëû: R 1-(OCH2CH2)n-OH â êîòîðîé n ïðåäñòàâë åò ñîáîé öåëîå ÷èñëî â èíòåðâàëå 2-20, a R 1 ïðåäñòàâë åò ñîáîé íàñûùåííóþ èëè íåíàñûùåííóþ óãëåâîäîðîäíóþ öåïî÷êó, ñîñòî ùóþ èç 9-18 óãëåðîäíûõ àòîìîâ. 5. Êîìïîçèöè ïî ï.4, â êîòîðîé n ïðåäñòàâë åò ñîáîé öåëîå ÷èñëî â èíòåðâàëå 6-15, à R 1 ïðåäñòàâë åò ñîáîé àëêèëüíóþ ãðóïïó èç 11-13 óãëåðîäíûõ àòîìîâ. 6. Êîìïîçèöè ïî ï.1, â êîòîðîé ñîïîëèìåð ýòèëåíîêñèäà è ïðîïèëåíîêñèäà ïðåäñòàâë åò ñîáîé áëîê ñîïîëèìåð, ñîäåðæàùèé 1-8 ýòèëåíîêñèäíûõ çâåíüåâ è 3-12 ïðîïèëåíîêñèäíûõ çâåíüåâ. Ñòðàíèöà: 1 RU A 2 0 0 4 1 0 4 4 6 6 A ÎÒ ÇÀÃÐßÇÍÅÍÈÉ ÏÎÂÅÐÕÍÎÑÒÈ ÒÂÅÐÄÛÕ ÒÅË È ÑÏÎÑÎÁ ÎÁÅÇÆÈÐÈÂÀÍÈß ÏÎÂÅÐÕÍÎÑÒÈ 2 0 0 4 1 0 4 4 6 6 (87) ...

СПОСОБ ОБРАБОТКИ ПОВЕРХНОСТИ С ПОМОЩЬЮ ОЧИСТНОГО ГЕЛЯ, ЕГО ПРИМЕНЕНИЕ И ОЧИСТНОЙ ГЕЛЬ

... 1. Способ обработки поверхности очищающим гелем, который включает следующие стадии: нанесение очистного геля на обрабатываемую поверхность, где очистной гель состоит из коллоидного раствора, включающего от 5 до 25% (в расчете на массу геля) смеси пирогенетического кремнезема с осажденным кремнеземом, от 0,5 до 4 моль/л активного очищающего агента и возможно от 0,05 до 1 моль/л окислительного агента с нормальным окислительно-восстановительным потенциалом Е0 выше 1,4 мв в сильно кислотной среде или восстановленной формы этого окислительного агента, выдерживание очистного геля на обрабатываемой поверхности при таких температуре и относительной влажности, при которых гель высыхает и при этом имеется время для того, чтобы гель обработал поверхность, прежде чем образуется сухой и твердый остаток, и удаление сухого и твердого остатка с обрабатываемой поверхности. 2. Способ обработки по п.1, в котором температура высыхания составляет от 20 до 30°С и относительная влажность от 20 до 70%. 3. Способ ...

СПОСОБ ОЧИСТКИ МЕДНОЙ ПОВЕРХНОСТИ, В ЧАСТНОСТИ ПОВЕРХНОСТИ СВЕРХПРОВОДНИКОВ

Использование: способ может быть использован в производстве сверхпроводников, медной проволоки и других изделий из меди в металлургической, машиностроительной и др. промышленности. Цель: изобретение направлено на повышение эффективности очистки медной поверхности, увеличение стабильности окисной пленки и уменьшение длительности процесса очистки. Сущность изобретения: медную поверхность, в том числе и поверхность сверхпроводников, обрабатывают в течении 3 - 7 мин нагретым до 100 - 120oС активированным раствором, содержащим 45 - 75 г/л надсерной кислоты, перекись водорода и другие окислители, полученным в результате электрохимической обработки водного раствора серной кислоты (25 - 50%). Положительный эффект: заявляемый способ позволяет получить на поверхности меди однородный окисел, свободный от примесей и стабильный по составу и толщине, длительность очистки сокращается до 3 - 7 мин, качество очищенной поверхности остается неизменно хорошим длительное время (от 6 месяцев до года). Экономический ...

УСТАНОВКА И СПОСОБ НЕПРЕРЫВНОГО ТРАВЛЕНИЯ СТАЛЬНЫХ ПОЛОС

... 1. Способ травления металлической полосы (2), движущейся в установке (1) линии травления, который включает в себя последовательно этап фрагментации оксидов, образованных на поверхности указанной полосы (2) во время горячей прокатки, этап травления кислотой, этап промывки полосы (2) и этап сушки, причем полоса (2) захватывается со скоростью движения V в указанную установку (1), следуя продольному направлению движения, перпендикулярному ширине полосы (2), скорость V движения полосы (2) регулируется совокупностью сматывающих (21) и наматывающих (30) устройств, и каждый этап травления контролируется исполнительными механизмами (45), которые могут действовать на параметры управления линией травления (1), причем действие или отсутствие действия приводного механизма (45) на данный регулировочный параметр идентифицируется данными о состоянии (450), ! причем указанный способ включает в себя глобальный процесс контроля (4000) травления, в котором проводится: ! - непрерывное измерение (43101, 43102 ...

СОСТАВ ДЛЯ УДАЛЕНИЯ ПРОДУКТОВ АТМОСФЕРНОЙ КОРРОЗИИ С ПОВЕРХНОСТИ КОРРОЗИОННОСТОЙКИХ СТАЛЕЙ

Изобретение относится к области химической обработки поверхности коррозионностойких сталей. Предложенный состав содержит ортофосфорную кислоту, щавелевую кислоту, поверхностно-активные вещества в виде синтанола и кислотного технического моющего средства, дезинфицирующую добавку, представляющую собой смесь дезинфицирующего средства на основе четвертичного аммониевого соединения, уротропина и соляной кислоты, а также оксид кремния и воду. При этом состав содержит компоненты при следующем соотношении, г/кг: ортофосфорная кислота 250-350, щавелевая кислота 5-10, синтанол 1-6, кислотное техническое моющее средство 5-10, дезинфицирующая добавка 10-15, оксид кремния 50-80, вода - остальное. Изобретение позволяет эффективно удалить продукты коррозии с поверхности крупногабаритных узлов и деталей, а также с поверхности любого размера и угла наклона, в том числе с потолочной, при этом обеспечивает уменьшение времени обработки и дезинфекцию обрабатываемой поверхности без ее растрава, при повышении ...

РАСТВОР ДЛЯ ОЧИСТКИ ПОВЕРХНОСТИ НИКЕЛЯ

Способ приготовления состава для удаления налета свинца и мельхиора из канала стволов огнестрельного оружия

Способ травления латуни и цветных металлов

Паста для очистки металлических поверхностей

Раствор для очистки поверхности меди и ее сплавов

Способ травления меди

Способ избирательного травления листовой стали

Способ подготовки поверхности изделий из титана и его сплавов перед нанесением гальванических покрытий

PASTE FOR STEEL SURFACE PICKLING

Автолизат для очистки металлических поверхностей от иловых отложений

Раствор для удаления оксидных пленок с металлических изделий

РАСТВОР ДЛЯ УДАЖНИЯ ОКСИДНЫХ ПЛЕНОК С МЕТАЛЛИЧЕСКИХ ИЗДЕЛИЙ преимущественно из меди и ее сплавов, содержащий минеральную кислоту и бифторид-фторид аммония, отличающийся тем, что, с целью повьнпения качества поверхности и снижения потерь метапла, он дополнительно содержит сернокислый натрий, а в качестве минеральной кислотысерную кислоту при следующем соотношении компонентов, г/л: Серная кислота40-80 Сернокислый натрий20-40 i Бифторид-фторид аммония2-5 00 00 ...

Способ очистки медной поверхности

Струйный способ одновременного обезжиривания и травления металлических изделий

Способ очистки деталей

Изобретение относится к химической обработке металлической поверхности, в частности к способам очистки деталей преимущественно из сплтвов благородных ме- таллоа от стекля и керамики Цель, изобре гения является повышение эффективности очистки и сокращение времени обработки Способ осуществляют пуем обработки де талей в травильном растворе содержащем мае % бифторид калия 053 борная кислота 0 5 2 плавиковая кислота остальное при и воздействии ультразвуковых колебании частотой 18 22 кГц с последующей промывкой и сушкой Повышение эффективности очистки и сокращение времени обработки достигается за счет испольчотния указанного раствора при 40 70°L 1 табл ...

Способ очистки стальных клапанов двигателей внутреннего сгорания от свинцового нагара

PASTE FOR SCALE REMOVAL FROM CARBON STEEL SURFACE

Состав для химической очистки металлических поверхностей

Сущность изобретения: состав содержит ортофосфорную кислоту 20-45%, органическую фосфоновую кислоту 5-10%, Чичерин 5-10%, воду 45-60%, 5 табл.

Disinfection composition based on h202 acids and metal ions

Disinfection composition based on h202 acids and metal ions

Disinfecting composition based on H202, acids and metal ions.

Disinfection composition based on h202 acids and metal ions

Process of elimination of the primarily titaniferous incrustations of the walls of heat exchangers.

Composition disinfecting containing H2O2, metal acids and ions.

PROCEDURE AND DEVICE FOR THE TREATMENT OF A SUBSTRATE WITH OZONE SOLVENTS A SOLUTION

PROCEDURE FOR DECONTAMINATING LEAD ARTICLES

DECOATING PROCEDURE

VERFAHREN ZUR VERHINDERUNG VON BELAGEN, AUFTROCKNUNG UND SCHLEIERN BEI NACHSPULVORGANGEN

VERFAHREN ZUM BEIZEN VON EDELSTAHL

ARREARS-FREELY REMOVABLE CLEANER

PROCEDURE FOR PICKLING HIGH-GRADE STEELS, COPPER, NON-FERROUS METAL CRAVING, SPECIAL ALLOYS, TITANIUM, ZIRCON OR TANTALUM OF MEANS OF NITRIC PICKLING BATHS

PROCEDURE FOR PICKLING HIGH-GRADE STEEL

PROCEDURE FOR PICKLING BATH CONTROL IN CONTINUOUSLY WORKING PICKLING PLANTS

PROCEDURE FOR THE PREVENTION OF BELAGEN, AUFTROCKNUNG AND VEILS WHEN NACHSPULVORGANGEN

PROCEDURE AND DEVICE FOR PICKLING METALLIC VOLUMES

MORE MONOFILER, FROM TWO COMPONENTS OF EXISTENCES, ELECTRICAL OF DIRECTIONS TEXTILE THREAD

WAESSERIGE REINIGUNGSLOESUNG AND PROCEDURES FOR THE CLEANING OF AN ALUMINUM SURFACE

VERFAHREN ZUM BEIZEN VON EDELSTAHL

Procedure for the representation of water-insoluble Azofarbstoffen.

APPLICATION TECHNOLOGY FOR DESCALING SURFACES.

PROCEDURE AND WAESSRIGE, SOUR ONE CLEANING SOLUTION FOR THE CLEANING OF ALUMINUM SURFACES.

PROCEDURE FOR THE CLEANING AND COATING OF FOR DISCHARGE CERTAIN PIPINGS.

STABILIZATION OF WAESSRIGEN LOESUNGEN, THE HYDROGEN PEROXIDE, HYDROGEN FLUORIDE AND METAL IONS CONTAINING.

PROCEDURE FOR PICKLING METALS.

PROCEDURE FOR THE DISSOLUTION OF OXIDES DEPOSITED AT A SUBSTRATE AND USE FOR THE DECONTAMINATION.

PROCEDURE FOR THE REDUCTION OF NITROGEN OXIDE MISSIONS FROM NITRIC ACID ABSTENTION LOESUNGEN.

PROCEDURE FOR THE ACTIVATION OF TITANIUM SURFACES.

PROCEDURE FOR CLEANING METALS AND MEANS FOR DURCHFUHRUNG THE PROCEDURE

Cleaning agents for hard surfaces on basis of phosphoric acid, ionogenen and nichtionogenen surface-active materials

MEANS TO THE CORROSION PREVENTING

ORGANIC GEL FOR DECONTAMINATION AND ITS USE FOR THE DECONTAMINATION OF SURFACES

PROCEDURE FOR THE PREVENTION OF SURFACES, AUFTROCKNUNG AND VEILS WITH RINSING PRE COURSES

DISINFECTING COMPOSITION ON BASIS OF H2O2, ACIDS AND METAL IONS

HETEROPOLYSACCHARID BM07, PROCEDURE FOR ITS PRODUCTION AND ITS USE IN DIFFERENT INDUSTRIES.

METAL FIBER AGGLOMERATE AND PROCEDURE FOR ITS PRODUCTION

PROCEDURE AND LIQUIDS FOR REMOVING FROM IMPURITIES FROM SURFACES

CLEANING METHOD OF COMPOSITION ON OIL BASIS AND COMPOSITION FOR USE FOR IT

PROCEDURE FOR CORRODING METALLIC MATERIALS

COMPOSITION AND PROCEDURE FOR THE CLEANING OF SURFACES

Procedure for pickling metallic inner surfaces of closed containers

Procedure for the production of lithographic printing plates from aluminum or aluminum alloys

Procedure for continuous pickling of strangförmigem material

PROCEDURE FOR PICKLING AND PASSIVATING STAINLESS STEEL WITHOUT USE OF NITRIC ACID

Corrosion inhibitors for aluminum

TREATMENT OF TITANIUM

REMOVAL OF BLOCKAGES FROM PIPEWORK

Removal of fluoride-containing scales using aluminum salt solution

Acidic cleaning compositions

METHOD OF REMOVING A THERMAL BARRIER COATING

A method of removing a ceramic coating (18), such as a thermal barrier coating (TBC) of yttria- stabilized zirconia (YSZ), from the surface of a component (10), such as a gas turbine engine component (10). The method generally entails subjecting the ceramic coating (18) to an aqueous solution of ammonium bifluoride, optionally containing a wetting agent, such as by immersing the component (10) in the solution while maintained at an elevated temperature. Using the method of the invention, a ceramic coating (18) can be completely removed from the component (10) and any cooling holes, with essentially no degradation of the bond coat (16).

METHOD OF DECONTAMINATING RADIOACTIVE METAL SURFACES

PROCESS AND APPARATUS FOR DEOXIDATION OF SHELLS FOR THE PRODUCTION OF PIPES

PROCESS AND APPARATUS FOR DEOXIDATION OF SHELLS FOR THE PRODUCTION OF PIPES A process is disclosed for the processing of deoxidation agents, especially those used for the deoxidation of shells heated to rolling temperature for the production of pipes. The deoxidation agent is fed by volumetric or gravimetric dosing into a pressure container. From 5 up to 100 g of deoxidation agent is present per square meter (m2) of the inside wall surface of the shell. Compressed gas is inserted into the pressure container so that a ratio of from 50 to 750 standard liters of gas per kilogram of deoxidation agent is attained. The gas and the deoxidation agent are guided as a homogenous mixture through a transport line to a nozzle of special design, which guides the homogenous mixture in a circular, turbulent, laminary or pulsating movement in the shell, which has been heated to rolling temperature. In this manner, the deoxidation agent is applied to the walls of the shell. Apparatus is also disclosed for ...

METHOD FOR THE ELIMINATION OF TITANIFEROUS SCALES ON HEAT EXCHANGER MALLS

L'invention concerne un nouveau procédé de nettoyage des parois d'échangeurs thermiques ou de réacteurs, recouvertes d'incrustations essentiellement titanifères mais pouvant également contenir des incrustations silico-alumineuses formées au cours de l'attaque de minerais en provoquant une importante diminution du potentiel d'échange thermique. Ce procédé est destiné à restaurer les caractéristiques fondamentales des parois, et se caractérise en ce que l'on élimine les incrustations au moyen d'une liqueur aqueuse de traitement contenant en poids 3 à 30 % d'acide hexafluosilicique et au plus 10 % d'acide fluorhydrique. La liqueur aqueuse de traitement peut contenir un inhibiteur de corrosion, et le traitement peut s'effectuer à une température comprise entre 20.degree.C et 80.degree.C.

SURFACE DE-OXIDIZING AND PRESERVING AGENT

PASTE BASE CONTAINING PHOSPHORIC ACID,A PROCESS FOR ITS MANUFACTURE AND ITS USES

METHOD AND COMPOSITION FOR REMOVING SULFIDE- CONTAINING SCALE FROM METAL SURFACES

CLEANING COMPOSITIONS FOR CERAMIC AND PORCELAIN SURFACES AND RELATED METHODS

A cleaning composition for removing kinetically inert high oxidation state metal coordination complex stains, lime scale, soap scum, soil, grease, and biofilm deposits from ceramic surfaces, such as porcelain and glass, and other hard surfaces. The composition includes an acid component; a reducing component; a surfactant system component; and a complexing system component. In one aspect, the cleaning composition includes in combination, sodium bisulfate, in an amount between about 10 and about 80 weight percent of the composition; isoascorbic acid, in an amount between about 0.1 and about 20 weight percent of the composition, for reducing the kinetically inert metal coordination complex stains; a non- interfering surfactant system; and a complexing system comprising ethylendiaminetetraacetic acid and citric acid, the ethylendiaminetetraacetic acid comprising between about 0.01 and about 10 weight percent of the composition, and the citric acid comprising between about 5 and about 45 weight ...

IRON SULFIDE DISSOLVER

An aqueous iron sulfide dissolver including zinc, chromium, a methoxybenzoic acid, formic acid, acetic acid, and hydrochloric acid. The iron sulfide dissolver is made by combining these components, and dissolves compounds including iron sulfide upon contact. Evolved hydrogen sulfide reacts with the methoxybenzoic acid to yield solubilized methanethiol as an intermediate product, which is further oxidized to yield dissolved dimethyl disulfide.

NOVEL INHIBITED HYDROFLUORIC ACID COMPOSITION

An inhibited hydrofluoric acid aqueous composition, said composition comprising: hydrofluoric acid in solution; and a weak base selected from the group consisting of: lysine, arginine, histidine, glutamine, asparagine, tryptophan, and tyrosine; wherein said weak base and hydrofluoric acid are present in a molar ratio of at least 1:1. Also disclosed is a mud acid using this inhibited acid composition.

FLUORINATED ACID COMPOUNDS, COMPOSITIONS AND METHODS OF USE

Novel acid-based chemistries that can be used in various cleaning, de-scaling, rust- removal, brightening, etching and other similar applications, including, but not limited to, those based upon hexafluorozirconic acid and other additives, such as urea in some applications, which are effective for a wide range of applications, while avoiding the health, safety and environmental issues that are often associated with the use of hydrochloric acid and other toxic chemistries.

NOVEL CORROSION INHIBITION PACKAGE

An inhibition corrosion package for use with an acidic composition, where the package comprises a dialdehyde-containing hydrocarbon component; at least one surfactant; optionally, a propargyl alcohol or derivative thereof; and a solvent. Also disclosed are acidic compositions combining the corrosion inhibition package according to a preferred embodiment of the present invention for use in various industrial operations including but not limited to oil and gas operations. Also disclosed are methods of use of such compositions.

OXIDATIVE LEACH PROCESS FOR THE RECOVERY OF HYDRO-CARBONS AND THE EXTRACTION OF METALS

The invention relates generally to an improved electrochemical method for winning platinum group and other precious metals, and/or extracting hydrocarbons from oil deposits. In particular, the method utilizes an oxidative leach process for recovering hydro-carbons oil deposits such as oil sands, oil shales and conventional oil deposits, and extracting metals held in these bodies including the asphaltenes therein. The method converts the hydrocarbons into alcohols, glycols and other water soluble hydrocarbons. By so doing, the metals held by the asphaltenes are freed, either physically or chemically, so that these metals can be lixiviated by the oxidative leach process.

ACIDIC COMPOSITIONS HAVING PH VALUES OF LESS THAN ABOUT 1 AND METHOD FOR PRODUCING SAME

A PROCESS FOR CLEANING METALS COMPRISING A STEP OF CONTACTING A METAL WITH AN AQUEOUS SOLUTION COMPRISING HYDROGEN PEROXIDE, AT LEAST ONE MINERAL ACID AND AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF 1-HYDROXYETHYLIDENE-1, 1-DIPHOSPHONIC ACID, SALTS AND DEGRADATION PRODUCTS THEREOF

The invention relates to a process for cleaning metals comprising a step of contacting a metal with an aqueous solution comprising hydrogen peroxide and at least one compound selected from the group consisting of complexing agents based on phosphonic acids, salts and degradation products thereof in an amount from about 10 to about 60 wt% based on the amount of hydrogen peroxide.

NOVEL CORROSION INHIBITION PACKAGE

A corrosion inhibition package for use with an aqueous acid composition, said package comprising: a terpene; a cinnamaldehyde or a derivative thereof; at least one amphoteric surfactant; and a solvent. Also disclosed are compositions comprising said corrosion inhibitor package. Preferably, the corrosion inhibition package meets the environmental requirements for classification as yellow according to the Norwegian North Sea offshore drilling regulatory requirements.

CLEANING SOLUTION AND METHODS OF CLEANING A TURBINE ENGINE

A cleaning solution for a turbine engine includes water between 68.65 percent and 99.63 percent by volume of the cleaning solution; a first organic acidic component between 0.1 percent and 15 percent by volume of the cleaning solution; a second organic acidic component between 0.1 percent and 15 percent by volume of the cleaning solution; isoropylamine sulphonate between 0.07 percent and 0.14 percent by volume of the cleaning solution; alcohol ethoxylate between 0.035 percent and 0.07 percent by volume of the cleaning solution; triethanol amine between 0.035 percent and 0.07 percent by volume of the cleaning solution; sodium lauriminodipropionate between 0.03 percent and 1.0 percent by volume of the cleaning solution. The cleaning solution has a pH value between 2.5 and 7Ø A method of cleaning a turbine engine includes directing a cleaning solution towards a component of the turbine engine having a layer of foreign material thereon.

USE OF ALKANE SULFONIC ACID FOR CLEANING IN THE SUGAR INDUSTRIES

La présente invention concerne l'utilisation d'au moins un acide alcane-sulfonique de formule R-SO3H, où R représente une chaîne hydrocarbonée saturée, linéaire ou ramifiée, comportant de 1 à 4 atomes de carbone, pour le nettoyage des dépôts solides comprenant au moins un sel de l'acide aconitique. L'invention concerne également un procédé de nettoyage des dépôts solides comprenant au moins un sel de l'acide aconitique, à l'aide d'au moins un acide alcane- sulfonique.

USE OF ALKANE SULFONIC ACID FOR CLEANING IN THE SUGAR INDUSTRIES

La présente invention concerne l'utilisation d'au moins un acide alcane-sulfonique de formule R-SO3H, où R représente une chaîne hydrocarbonée saturée, linéaire ou ramifiée, comportant de 1 à 4 atomes de carbone, pour le nettoyage des dépôts solides comprenant au moins un sel de l'acide aconitique. L'invention concerne également un procédé de nettoyage des dépôts solides comprenant au moins un sel de l'acide aconitique, à l'aide d'au moins un acide alcane- sulfonique.

OIL BASED COMPOSITION CLEAN UP METHOD AND COMPOSITION FOR USE THEREIN

A method and composition for clean up of an oil based or water insoluble composition using an aqueous solution. The clean up composition includes 5 - 60 % by weight of a solubility controlling component exhibiting pH dependent water solubility behavior and 30 - 95 % by weight of a diluent. The method includes applying the clean up composition to the oil based composition and cleaning the same with an aqueous solution having a wash pH falling within the pH levels at which the solubility controlling component is water washable.

MULTIPURPOSE SCALE PREVENTER/REMOVER

A process for preventing or removing calcium and rust scale deposits from surfaces which are in contact with aqueous systems comprising adding to the aqueous system 3,5-bis(di-N,N-(carboxymethyl)aminomethyl)-4- hydroxybenzenesulfonic acid in an amount effective to remove the scale and rust deposits.

MALEIC ACID-BASED AQUEOUS CLEANING COMPOSITIONS AND METHODS OF USING SAME

Aqueous cleaning compositions for removing limescale on hani surfaces, especially metai surfa are disclosed which comprises a surfactant or mixtures then of, an acid with its first pKa not exceeding 5, or mixtures thereof, and m acid in a weight ratio of maleic acid to said acid such titat the surface safety is improved. Said compositions are particularly suitable to be used in the bathrooms and in the kitchens or for descaling appliances.

METHOD FOR SURFACE TREATMENT OF A PROTECTIVELY COATED SUBSTRATE

A method is shown for surface-treating a protectively coated substrate (), more particularly steel strip, for the purpose of enhancing the strength of adhesion with an adhesive (), where the at least partly multi-phase protective coat () comprises at least zinc and magnesium. In order to provide a particular suitability for adhesive bonding, it is proposed that the protective coat () be subjected to a pickling treatment, directed substantially at at least one intermetallic Zn—Mg phase () of the protective coat (), with acidic pickle, more particularly acid. 11102242. Method for surface treatment of a protectively coated substrate () , particularly steel strip , for improvement of the adhesion strength , with an adhesive () , wherein the at least partly multi-phase protective coating () comprises at least zinc and magnesium , wherein the protective coating () is subjected to a pickling treatment , which is essentially directed at at least one intermetallic Zn—Mg phase () of the protective coating () , with acidic pickle , particularly acid.2292. Method according to claim 1 , wherein in the pickling step for selective pickling of the protective coating () claim 1 , an oxide layer () of the protective coating () is also removed by pickling.32. Method according to claim 1 , wherein the protective coating () is subjected to a pickling treatment essentially directed at MgZn.427. Method according to claim 1 , wherein the protective coating () claim 1 , which additionally comprises aluminum claim 1 , is subjected to a pickling treatment essentially directed at a particularly ternary eutectic ().5. Method according to claim 1 , wherein an acid having a pKvalue less than 0 is used as an acidic pickle.6. Method according to claim 5 , wherein a non-oxidizing acid claim 5 , particularly HSO claim 5 , is used as an acidic pickle.72. Method according to claim 1 , wherein the protective coating () is subjected to a pickling duration of 0.5 to 20 seconds claim 1 , with an acid at a ...

Methods of Removing a Protective Layer

A method of removing a metal protective layer from a surface of a reactor component comprising treating the metal protective layer with one or more chemical removal agents to remove at least a portion of the metal protective layer from the reactor component. A method of removing a metal protective layer from a surface of a reactor component comprising treating the metal protective layer to remove the metal protective layer from the reactor component, and determining a thickness of the reactor component following treatment. 1. A method of removing a first metal protective layer from a surface of a component of a catalytic reforming reactor comprising:converting at least a portion of a hydrocarbon feed stream to provide aromatic hydrocarbons by contacting the hydrocarbon feed stream with a first reforming catalyst in the catalytic reforming reactor, wherein the hydrocarbon feed and the aromatic hydrocarbons contact the first metal protective layer;removing the first reforming catalyst from the catalytic reforming reactor;treating the first metal protective layer of the component of the catalytic reforming reactor to mobilize at least a portion of the first metal protective layer from the surface of the component of the catalytic reforming reactor; andloading the catalytic reforming reactor with a second reforming catalyst comprising a zeolitic reforming catalyst or a bimetallic reforming catalyst.2. The method of wherein the first reforming catalyst is a zeolitic reforming catalyst selected from the group consisting of rhenium on an alumina support claim 1 , iridium on an alumina support claim 1 , platinum on a type X zeolite claim 1 , platinum on a type Y zeolite claim 1 , platinum on a cation exchanged type L zeolite claim 1 , and a large-pore zeolite including an alkali or alkaline earth metal charged with one or more Group VIII metals.3. The method of wherein the second reforming catalyst is a bimetallic reforming catalyst comprising:platinum, palladium, or ...

METHOD FOR SMUT REMOVAL DURING STRIPPING OF COATING

Stripping a metallic bond coat from an article using a wet chemical process. An article removed from service and having a metallic bond coat applied over a surface of its metallic substrate is provided. The metallic bond coat is used to improve the adhesion of a TBC to the article, so grit blasting to first remove any TBC applied over the bond coat and which still remains on the article initially may be required. The bond coated article is then immersed in an acid solution of HCl/HPOat a predetermined temperature for a predetermined amount of time, the HCl/HPOsolution reacting with the bond coat applied over the metallic substrate to form a smut on the surface. The article is then removed from the HCl/HPOsolution and quickly immersed in a solution of NaOH for a predetermined amount of time to at least partially desmut the surface. 1. A method for stripping a metallic coating from a component , comprising the steps of:providing a component having a metallic coating applied over a surface of a metallic substrate;{'sub': 3', '3, 'immersing the metallic coated component in a solution of predetermined concentration of HCl/HPOfor a predetermined amount of time at a predetermined temperature, wherein the solution reacts with the bond coat to form a smut; then'}{'sub': 3', '3, 'removing the component from the solution of HCl/HPOand immersing the turbine component in a solution of predetermined concentration of NaOH for a predetermined amount of time to remove the smut; then'}removing the component from the basic solution and rinsing the component with water to remove any residual smut; then{'sub': 3', '3, 'immersing the metallic coated component in a solution of predetermined concentration of HCl/HPOfor a second immersion for a predetermined amount of time at a predetermined temperature, wherein the solution reacts with any remaining metallic coat to form a smut; then'}{'sub': 3', '3, 'removing the component from the solution of HCl/HPOand immersing the turbine component a ...

OXIDIZING AQUEOUS CLEANER FOR THE REMOVAL OF POST-ETCH RESIDUES

An oxidizing aqueous cleaning composition and process for cleaning post-plasma etch residue and/or hardmask material from a microelectronic device having said residue thereon. The oxidizing aqueous cleaning composition includes at least one oxidizing agent, at least one oxidizing agent stabilizer comprising an amine species selected from the group consisting of primary amines, secondary amines, tertiary amines and amine-N-oxides, optionally at least one co-solvent, optionally at least one metal-chelating agent, optionally at least one buffering species, and water. The composition achieves highly efficacious cleaning of the residue material from the microelectronic device while simultaneously not damaging the interlevel dielectric and metal interconnect material also present thereon. 1. An aqueous cleaning composition , comprising at least one oxidizing agent , at least one oxidizing agent stabilizer comprising an amine species selected from the group consisting of primary amines , secondary amines , and tertiary amines , optionally at least one organic co-solvent , optionally at least one metal-chelating agent , optionally at least one buffering species , and water , wherein the pH of the cleaning composition is about 3 to about 9.24.-. (canceled)5. The aqueous cleaning composition of claim 1 , wherein the at least one oxidizing agent comprises hydrogen peroxide.6. The aqueous cleaning composition of claim 1 , wherein the at least oxidizing agent stabilizer comprises an amine species selected from the group consisting of monoethanolamine claim 1 , amino ethoxyethanol (diglycolamine) claim 1 , monoisopropanolamine claim 1 , isobutanolamine claim 1 , C-Calkanolamines claim 1 , methylethanolamine claim 1 , N-methylaminoethanol claim 1 , diethanolamine claim 1 , triethanolamine claim 1 , methyldiethanolamine claim 1 , triethylamine claim 1 , N claim 1 ,N-dimethylglycolamine claim 1 , N claim 1 ,N-dimethyldiglycolamine claim 1 , pentamethyldiethylenetriamine claim 1 , ...

SUBSTRATE LIQUID PROCESSING APPARATUS, SUBSTRATE LIQUID PROCESSING METHOD AND RECORDING MEDIUM

A substrate processing apparatus includes a substrate holder configured to horizontally hold and rotate a substrate which has a recess and a base metal layer exposed from a bottom surface of the recess; and a pre-cleaning liquid supply configured to supply a pre-cleaning liquid such as dicarboxylic acid or tricarboxylic acid onto the substrate being held and rotated by the substrate holder, to thereby pre-clean the base metal layer. A temperature of the pre-cleaning liquid on the substrate is equal to or higher than 40° C. 1. A substrate liquid processing apparatus , comprising:a substrate holder configured to horizontally hold and rotate a substrate which has a recess and a base metal layer exposed from a bottom surface of the recess; anda pre-cleaning liquid supply configured to supply a pre-cleaning liquid such as dicarboxylic acid or tricarboxylic acid onto the substrate being held and rotated by the substrate holder, to thereby pre-clean the base metal layer,wherein a temperature of the pre-cleaning liquid on the substrate is equal to or higher than 40° C.2. The substrate liquid processing apparatus of claim 1 , further comprising:a plating liquid supply configured to supply a plating liquid onto the pre-cleaned substrate.3. The substrate liquid processing apparatus of claim 2 ,wherein the temperature of the pre-cleaning liquid is within ±5° C. of a temperature of the plating liquid.4. The substrate liquid processing apparatus of claim 1 ,wherein the temperature of the pre-cleaning liquid is in a range from 60° C. to 70° C.5. The substrate liquid processing apparatus of claim 1 , further comprising:an additional pre-cleaning liquid supply configured to supply an additional pre-cleaning liquid onto the substrate before being pre-cleaned, to thereby accelerate oxidation of the base metal layer.6. The substrate liquid processing apparatus of claim 1 , further comprising:a deaerating device configured to deaerate the pre-cleaning liquid before being supplied onto ...

CLEANING SOLUTION AND METHODS OF CLEANING A TURBINE ENGINE

A cleaning solution for a turbine engine includes water within a range between about 68.65 percent and about 99.63 percent by volume of the cleaning solution; a first organic acidic component within a range between about 0.1 percent and about 15 percent by volume of the cleaning solution; wherein the organic acid comprises citric acid; a second organic acidic component within a range between about 0.1 percent and about 15 percent by volume of the cleaning solution; wherein the organic acid comprises glycolic acid; isoropylamine sulphonate within a range between about 0.07 percent and 0.14 percent by volume of the cleaning solution; alcohol ethoxylate within a range between about 0.035 percent and 0.07 percent by volume of the cleaning solution; triethanol amine within a range between about 0.035 percent and 0.07 percent by volume of the cleaning solution; sodium lauriminodipropionate within a range between about 0.03 percent and 1.0 percent by volume of the cleaning solution. The cleaning solution has a pH value in the range between about 2.5 and about 7.0. 1. A method of cleaning a turbine engine , the method comprising: a first organic acidic component within a range between about 0.1 percent and about 15 percent by volume of the cleaning solution; wherein the organic acid comprises citric acid;', 'a second organic acidic component within a range between about 0.1 percent and about 15 percent by volume of the cleaning solution; wherein the organic acid comprises glycolic acid;', 'isoropylamine sulphonate within a range between about 0.07 percent and 0.14 percent by volume of the cleaning solution;', 'alcohol ethoxylate within a range between about 0.035 percent and 0.07 percent by volume of the cleaning solution;', 'triethanol amine within a range between about 0.035 percent and 0.07 percent by volume of the cleaning solution;', 'sodium lauriminodipropionate within a range between about 0.03 percent and 1.0 percent by volume of the cleaning solution;', 'wherein ...

GEL SOLVENT AND METHOD OF REMOVING DIFFUSION AND OVERLAY COATINGS IN GAS TURBINE ENGINES

A method of stripping an engine component may comprise applying an acidic gel solvent to a coating of a surface of the engine component, leaving the acidic gel solvent on the surface of the engine component for a predetermined duration, and removing the acidic gel solvent from the surface of the engine component. The method may further include mixing an acid with a gelling agent to form the acidic gel solvent. The acid may comprise hydrochloric acid. The gelling agent may comprise a cellulosic material. The gelling agent may comprise a carbohydrate. The method may further include rinsing the acidic gel solvent from the surface of the engine component. The coating may comprise at least one of a diffusion coating or an overlay coating. 1. A method of stripping an engine component , comprising:applying an acidic gel solvent to a coating of a surface of the engine component;leaving the acidic gel solvent on the surface of the engine component for a first duration; andremoving the acidic gel solvent from the surface of the engine component.2. The method of claim 1 , further including mixing an acid with a gelling agent to form the acidic gel solvent.3. The method of claim 2 , wherein the acid comprises hydrochloric acid.4. The method of claim 2 , wherein the gelling agent comprises a cellulosic material.5. The method of claim 2 , wherein the gelling agent comprises a carbohydrate.6. The method of claim 1 , further comprising rinsing the acidic gel solvent from the surface of the engine component.7. The method of claim 1 , wherein the coating comprises at least one of a diffusion coating or an overlay coating.8. The method of claim 1 , wherein the coating comprises aluminum.9. The method of claim 1 , further comprising removing an additive layer of the coating while leaving a diffused layer of the coating.10. The method of claim 1 , wherein the acid comprises a mineral acid.11. The method of claim 1 , further including:determining a thickness of a remainder of the coating ...

CHEMICAL DECONTAMINATION METHOD USING CHELATE FREE CHEMICAL DECONTAMINATION REAGENT FOR REMOVAL OF THE DENSE RADIOACTIVE OXIDE LAYER ON THE METAL SURFACE

A chemical decontamination reagent containing a reducing agent, a reductive metal ion, and an inorganic acid is provided to remove a radioactive oxide layer on a metal surface. The reagent can dissolve the radioactive oxide layer on the metal surface effectively at a relatively low temperature and enables a simple process of contacting the reagent to the radioactive oxide, thus economically effective in terms of cost and time required for the process. Since the decontamination does not use a conventional organic chelating agent such as oxalic acid, but the reducing agent as a main substance, the residuals of the reducing agent remained after decontamination can be decomposed and removed with an oxidizing agent. Due to the easy decomposition with the chemical decontamination reagent, secondary wastes can be minimized and the radionuclides remained in the decontamination reagent solution can be removed effectively. 1. A chemical decontamination method , comprising a step of contacting chemical decontamination reagent to a metal of a nuclear power plant covered with a dense radioactive oxide layer at temperature range of 70° C. to 140° C. and pH range of 1.0 to 3.7 ,Wherein the chemical decontamination reagent comprises a reducing agent, a reductive metal ion, and an acid, the acid consisting only inorganic acid, for removal of a dense radioactive oxide layer on a metal surface, and{'sub': 2', '4', '3', '2', '4, 'sup': '+', 'wherein the reducing agent is NH, the reductive metal ion is Cu, and the inorganic acid is HNOor HSO.'}2. The chemical decontamination method according to claim 1 , wherein the metal is one or more selected from the group consisting of stainless steel claim 1 , Inconel steel claim 1 , and zirconium alloy.3. The chemical decontamination method according to claim 1 , wherein the concentration of the reducing agent is in the range of 5×10-0.5 M.4. The chemical decontamination method according to claim 1 , wherein the concentration of the reductive ...

AQUEOUS CLEANING SOLUTION FOR REMOVAL OF ROUGING DEPOSITS ON MEDIA-CONTACTED SURFACES OF STAINLESS STEELS, USE THEREOF AND PROCESS FOR PRODUCTION THEREOF

An aqueous cleaning solution for removing rouging deposits on media-contacted surfaces of stainless steels comprises a first component and a second component. The first component is an alkali sulfite and the second component is an alkali formate, wherein the concentrations thereof are adjusted in such manner that formate is present in a molar ratio of 1.5 to 4.2 relative to sulfite, and that the pH value of the cleaning solution is 4.0 to 4.8. For preparing the aqueous cleaning solution, an aqueous solution of an alkali hydroxide is provided initially, thereafter a first amount of concentrated aqueous formic acid is admixed in an excess in such manner that a pH value of 3.5 to 4.5 is established, then a second amount of solid alkali sulfite is admixed in accordance with the sulfite concentration to be established, thus resulting in a pH value of 5.5 to 6.5, and finally a third amount of concentrated aqueous formic acid is admixed until a pH value of 4.0 to 4.8 is attained. 1. An aqueous cleaning solution comprising:a first component and a second component,wherein the first component is an alkali sulfite and the second component is an alkali formate,wherein the concentrations of the first component and second component are adjusted such that formate is present in a molar ratio of 1.5 to 4.2 relative to sulfite, and that the pH value of the cleaning solution is 4.0 to 4.8,wherein the aqueous cleaning solution is adapted to remove rouging deposits on media-contacted surfaces of stainless steels.2. The aqueous cleaning solution according to claim 1 , wherein the molar ratio of formate relative to sulfite is 3.0 to 4.2 and the pH value of the cleaning solution is 4.1 to 4.5.3. The aqueous cleaning solution according to claim 1 , wherein the alkali sulfite is sodium sulfite and the alkali formate is sodium formate.4. The aqueous cleaning solution according to claim 1 , wherein the sulfite is present in a concentration of 0.05 to 1.5 mol/kg.5. Method for removing rouging ...

Compositions for use in semiconductor devices

An improved composition and method for cleaning a surface of a semiconductor wafer are provided. The composition can be used to selectively remove a low-k dielectric material such as silicon dioxide, a photoresist layer overlying a low-k dielectric layer, or both layers from the surface of the wafer. The composition is formulated according to the invention to provide a desired removal rate of the low-k dielectric and/or photoresist from the surface of the wafer. By varying a fluorine ion component, and the amounts of the fluorine ion component and an acid component, and controlling the pH, a composition can be formulated in order to achieve a desired low-k dielectric removal rate that ranges from slow and controlled at about 50 to about 1000 angstroms per minute, to a relatively rapid removal of low-k dielectric material at greater than about 1000 angstroms per minute. The composition can also be formulated to selectively remove the photoresist layer, leaving the underlying low-k dielectric layer essentially intact.

USE OF ALKANE SULFONIC ACID FOR CLEANING IN THE SUGAR INDUSTRIES

The present invention concerns the use of at least one alkane sulfonic acid of formula R—SOH, in which R represents a linear or branched saturated hydrocarbon chain comprising 1 to 4 carbon atoms, for cleaning solid deposits containing at least one aconitic acid salt. The invention also concerns a method for cleaning solid deposits containing at least one aconitic acid salt, using at least one alkane sulfonic acid. 1. A process for cleaning , from a surface , solid deposits to be eliminated , wherein the solid deposits comprise at least one aconitic acid salt , wherein the process comprises the steps of: a) bringing at least one alkane sulfonic acid of formula R—SOH , in which R represents a linear or branched , saturated hydrocarbon-based chain comprising from 1 to 4 carbon atoms , into contact with the solid deposits comprising at least one aconitic acid salt , and b) allowing the at least one alkane sulfonic acid to dissolve the solid deposits comprising at least one aconitic acid salt , thereby eliminating the solid deposits from the surface.2. The process according to claim 1 , wherein the alkane sulfonic acid is selected from the group consisting of methanesulfonic acid claim 1 , ethanesulfonic acid claim 1 , n-propanesulfonic acid claim 1 , iso-propanesulfonic acid claim 1 , n-butanesulfonic acid claim 1 , iso-butanesulfonic acid claim 1 , sec-butanesulfonic acid claim 1 , tert-butanesulfonic acid claim 1 , and mixtures thereof.3. The process according to claim 2 , wherein the alkane sulfonic acid is methanesulfonic acid or ethanesulfonic acid.4. The process according to claim 1 , wherein the at least one alkane sulfonic acid is in the form of a formulation claim 1 , wherein the formulation comprises from 0.01% to 100% of the alkane sulfonic acid relative to the total weight of the formulation.5. The process according to claim 4 , wherein the formulation is aqueous claim 4 , or organic claim 4 , or aqueous-organic claim 4 , or is ready to use claim 4 , or is ...

METHOD AND MATERIAL FOR CLEANING METAL SURFACES

A cleaning composition, and method for use of the cleaning composition to clean metal surfaces, such as the surfaces of turbomachinery components, is presented. For example, a method includes contacting a surface of an article with a cleaning composition, wherein the article comprises a metal and wherein the surface includes an oxide; and removing the cleaning composition from the surface. The cleaning composition has a viscosity of at least 10poise, and comprises a thickening agent and an acidic matrix having selective reactivity with the oxide. 1. A method for cleaning a surface , the method comprising:Contacting a surface of an article with a cleaning composition, wherein the article comprises a metal and wherein the surface includes an oxide; andRemoving the cleaning composition from the surface;{'sup': '4', 'claim-text': an acidic matrix having selective reactivity with the oxide, and', 'a thickening agent., 'wherein the cleaning composition has a viscosity of at least 10poise, and wherein the cleaning composition comprises'}2. The method of claim 1 , wherein the acidic matrix comprises at least one mineral acid.3. The method of claim 2 , wherein the mineral acid comprises nitric acid claim 2 , phosphoric acid claim 2 , sulfuric acid claim 2 , hydrochloric acid claim 2 , or any combination comprising one or more of these.4. The method of claim 3 , wherein the acidic matrix comprises nitric acid and phosphoric acid.5. The method of claim 4 , wherein the nitric acid is present in the cleaning composition at a concentration in a range from about 95 grams per liter to about 115 grams per liter.6. The method of claim 4 , wherein the phosphoric acid is present in the cleaning composition at a concentration in a range from about 115 grams per liter to about 145 grams per liter.7. The method of claim 2 , wherein the acidic matrix further comprises an active compound.8. The method of claim 7 , wherein the active compound comprises ferric chloride.9. The method of claim ...

DECONTAMINATION METHOD REDUCING RADIOACTIVE WASTE REMARKABLY AND A KIT THEREFOR

The present invention provides a decontamination method including the steps of decontaminating an object containing radioactive contaminated metals or alloys with a chemical decontamination agent comprising sulfuric acid (HSO) and forming a Ba or Sr precipitate by adding Ba or Sr cation and hydroxyl ion or halogen anion salts to the decontamination waste water. 1. A decontamination method comprising the following steps:{'sub': 2', '4, 'decontaminating an object containing radioactive contaminated metals or alloys with a chemical decontamination agent comprising sulfuric acid (HSO) (step 1); and'}forming a Ba or Sr precipitate by adding Ba or Sr cation and hydroxyl ion or halogen anion salts to the decontamination waste water generated in step 1 (step 2).2. The decontamination method according to claim 1 , wherein the chemical decontamination agent of step is an oxidative decontamination agent claim 1 , a reductive decontamination agent claim 1 , or a combined decontamination agent thereof.3. The decontamination method according to claim 1 , wherein the decontamination method additionally includes a step of separating the precipitate (step 3).4. The decontamination method according to claim 2 , wherein the oxidative decontamination agent includes an oxidizing agent and a metal ion.5. The decontamination method according to claim 4 , wherein the oxidizing agent is one or more agents selected from the group consisting of KMnO claim 4 , NaMnO claim 4 , HCrO claim 4 , and HMnO.6. The decontamination method according to claim 2 , wherein the reductive decontamination agent includes a reducing agent and a metal ion.7. The decontamination method according to claim 6 , wherein the reducing agent is one or more agents selected from the group consisting of NaBH claim 6 , HS claim 6 , NH claim 6 , and LiAlH.8. The decontamination method according to claim 1 , wherein the object containing radioactive contaminated metals or alloys in step 1 is generated from the inner system of ...

METHOD AND APPARATUS FOR REMOVING OXIDE FROM METALLIC SUBSTRATE

A method for removing oxide from a metallic substrate is described. The method includes providing a stream of boron trifluoride; heating the metallic substrate at a first temperature; and heating the metallic substrate at a second temperature different from the first temperature. An associated apparatus is also described. 1. A method for removing oxide from a metallic substrate , comprising:providing a stream of boron trifluoride;heating the metallic substrate at a first temperature; andheating the metallic substrate at a second temperature different from the first temperature.2. The method of claim 1 , wherein providing a stream of boron trifluoride comprises providing a stream of boron trifluoride from a precursor of boron trifluoride located separately from the oxide.3. The method of claim 1 , wherein providing a stream of boron trifluoride comprises providing a stream of boron trifluoride from a gas storage device and/or a gas transportation device.4. The method of claim 1 , wherein the first temperature is in a range of 300° C. to 700° C.5. The method of claim 1 , wherein the second temperature is in a range of 750° C. to 1150° C.6. The method of claim 1 , wherein the second temperature is higher than the first temperature.7. The method of claim 1 , wherein the oxide comprises a mixture of metal oxides.8. The method of claim 1 , wherein the metallic substrate comprises an alloy comprising more than 10 wt % of chromium.9. An apparatus for removing oxide from a metallic substrate claim 1 , comprising:a gas source for providing a stream of boron trifluoride; anda heating device for heating the metallic substrate at a first temperature before heating the metallic substrate at a second temperature different from the first temperature.10. The apparatus of claim 9 , wherein the gas source comprises a gas storage device or a device for providing a stream of boron trifluoride from a precursor of boron trifluoride located separately from the oxide. Embodiments of the ...

AUTOMATED CLEANING OF WAFER PLATING ASSEMBLY

Disclosed herein are cleaning discs for cleaning one or more elements of a semiconductor processing apparatus. In some embodiments, the disc may have a substantially circular upper surface, a substantially circular lower surface, a substantially circular edge joining the upper and lower surfaces, and a plurality of pores opening at the edge and having an interior extending into the interior of the disc. In some embodiments, the pores are dimensioned such that a cleaning agent may be retained in the interior of the pores by an adhesive force between the cleaning agent and the interior surface of the pores. Also disclosed herein are cleaning methods involving loading a cleaning agent into a plurality of pores of a cleaning disc, positioning the cleaning disc within a semiconductor processing apparatus, and releasing cleaning agent from the plurality of pores such that elements of the apparatus are contacted by the released cleaning agent. 1. A method of cleaning one or more elements of a semiconductor holding and processing apparatus , the method comprising:loading a cleaning agent into a cleaning disc by receiving the cleaning agent into a plurality of pores opening in one or more edges of the disc and extending into the interior of the disc;holding the cleaning agent inside the plurality of pores;positioning the cleaning disc within the processing apparatus such that the plurality of pores are adjacent to the one or more elements of the apparatus to be cleaned, the one or more elements to be cleaned normally being adjacent to a semiconductor wafer when a wafer is held in the processing apparatus for processing; andreleasing cleaning agent from the plurality of pores such that the one or more elements of the apparatus to be cleaned are contacted by the released cleaning agent.2. The method of claim 1 , wherein the method of cleaning is used to clean a semiconductor holding and processing apparatus after the apparatus has been used to electroplate a semiconductor ...

Inhibiting Toxicity of Acid Systems Used for Treating Metals

In some examples of inhibiting toxicity of acid systems used for treating metals, a metal is pickled with a pickling composition that includes a first quantity of an acid and a second quantity of a corrosion inhibiting iodide salt. A mixture of the first quantity and the second quantity modify metallic properties of the pickled metal. The corrosion inhibiting iodide salt is added directly to the pickling composition independent of any other corrosion inhibitor or corrosion inhibiting polymer. 1. A method of pickling a metal , the method comprising:pickling a metal with a pickling composition comprising a first quantity of an acid and a second quantity of a corrosion inhibiting iodide salt, wherein a mixture of the first quantity of the pickling composition and the second quantity of the corrosion inhibiting iodide salt modify metallic properties of the pickled metal.2. The method of claim 1 , wherein the acid comprises sulfuric acid.3. The method of claim 1 , wherein the corrosion inhibiting iodide salt comprises potassium iodide.4. The method of claim 1 , wherein the second quantity of the corrosion inhibiting iodide salt is added directly to the first quantity of the pickling composition independent of any other corrosion inhibitor.5. The method of claim 1 , wherein the second quantity of the corrosion inhibiting iodide salt is mixed with the first quantity of the pickling composition at a temperature greater than room temperature.6. The method of claim 5 , wherein the temperature is at least about 60° C.7. The method of claim 6 , wherein the temperature ranges between about 60° C. and 80° C.8. The method of claim 1 , wherein the acid in the pickling composition has a molarity of either 0.5 M or 1.0 M.9. The method of claim 1 , wherein the metal comprises carbon steel.10. The method of claim 1 , wherein pickling the metal with the pickling composition including the corrosion inhibiting iodide salt comprises soaking the metal in the pickling composition for a ...

FLUORINATED ACID COMPOUNDS, COMPOSITIONS AND METHODS OF USE

Novel acid-based chemistries that can be used in various cleaning, de-scaling, rust-removal, brightening, etching and other similar applications, including, but not limited to, those based upon hexafluorozirconic acid and other additives, such as urea in some applications, which are effective for a wide range of applications, while avoiding the health, safety and environmental issues that are often associated with the use of hydrochloric acid and other toxic chemistries. 1. An acid-based cleaning composition for descaling and dissolution of complex silicates which does not release hydrofluoric acid comprising a combination of a fluorine containing acid selected from the group consisting of hexafluorophosphoric acid , hexafluorozirconic acid and hexafluorotitanic acid and an acid salt of the fluorine containing acid.2. The acid-based cleaning composition of claim 1 , wherein the acid salt comprises the reaction product of the fluorine containing acid and a weak base selected from the group consisting of urea claim 1 , substituted ureas claim 1 , short chained aliphatic amines claim 1 , short chained olefinic amides claim 1 , aromatic amides claim 1 , pyrolles claim 1 , pyrazoles and indoles. This application claims priority to and incorporates by reference herein in its entirety U.S. Provisional Patent Application Ser. No. 62/428,931, entitled “Fluorinated Acid Compounds, Compositions and Methods of Use,” filed Dec. 1, 2016.The inventions herein described and claimed relate generally to acid-based chemicals and compositions that find primary, but not exclusive, utility in de-scaling, cleaning and brightening applications, and which provide effective products and applications that enhance health and safety, and alleviate the environment issues presented by other chemistries used for similar purposes.Removing unwanted surface contaminants and staining, such as rust or scale, from metal objects is a ubiquitous and at times very vexing problem that plagues a huge array ...

AZEOTROPIC COMPOSITIONS OF 1,3,3-TRICHLORO-1,1-DIFLUOROPROPANE AND HYDROGEN FLUORIDE

Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoropropane (HCFO-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of HFC245fa and HCFO1233zd. 1. An azeotropic or azeotrope-like mixture consisting essentially of 1 ,3 ,3-trichloro-1 ,1-difluoropropane (242fa) and hydrogen fluoride.2. The composition of claim 1 , which consists essentially of from about 1 weight percent to about 99 weight percent hydrogen fluoride and from about 99 weight percent to about 1 weight percent 1 claim 1 ,3 claim 1 ,3-trichloro-1 claim 1 ,1-difluoropropane (242fa) claim 1 , which composition has a boiling point of from about 0° C. to about 25° C. claim 1 , at a pressure of from about 7.1 psia to about 17.9 psia.3. The composition of claim 1 , which consists essentially of from about 0.2 weight percent to about 97 weight percent hydrogen fluoride and from about 99.8 weight percent to about 3 weight percent 1 claim 1 ,3 claim 1 ,3-trichloro-1 claim 1 ,1-difluoropropane (242fa) claim 1 , which composition has a boiling point of from about 0° C. to about 25° C. claim 1 , at a pressure of from about 7.1 psia to about 17.9 psia.4. The composition of claim 1 , which consists essentially of from about 90 weight percent to about 97 weight percent hydrogen fluoride and from about 10 weight percent to about 3 weight percent 1 claim 1 ,3 claim 1 ,3-trichloro-1 claim 1 ,1-difluoropropane (242fa) claim 1 , which composition has a boiling point of about 0° C. claim 1 , at a pressure of about 7.1 psia.5. The composition of claim 1 , which consists essentially of from about 99 weight percent to about 1 weight percent hydrogen fluoride.6. The composition of claim 1 , which consists essentially of from about 95 weight percent to about 5 weight percent hydrogen fluoride.7. The composition of claim 1 , which consists essentially of from about 85 weight percent to about 15 weight percent hydrogen fluoride.8. The composition ...

ANTI-CORROSIVE AGENT FOR WASHING OF METAL WITH ACID, DETERGENT SOLUTION COMPOSITION, AND METHOD FOR WASHING OF METAL

An anti-corrosive agent for washing of a metal with an acid, which comprises an amphoteric polymeric compound (P) having at least one cationic constituent unit (A) having a specific structure, at least one anionic constituent unit (B) having a specific structure and a specific sulfur-containing constituent unit (C). 16-. (canceled)81. The method according to claim , wherein the counter ion X is an anion derived from an organic acid or an inorganic acid.91. The method according to claim , wherein at least a part of the cationic constituent unit (A) is derived from a cationic monomer selected from the group consisting of diallylamines and inorganic acid salts and organic acid salts thereof.101. The method according to claim , wherein at least a part of the cationic constituent unit (A) is derived from diallyldimethylammonium chloride and at least a part of the anionic constituent unit (B) is derived from maleic acid. The present invention relates to an anti-corrosive agent for washing of a metal with an acid that is excellent in anti-corrosion effect and stability and its applications.Surfaces of the metals such as metal steel sheets have black oxide coating such as mill scale adhering thereon. For this reason, when a treatment such as an anti-corrosive treatment and plating is performed on metal steel sheet or the like in order to improve the performance of the final product, it is widely performed that the oxide coating is removed before the treatment, thereby giving anti-corrosiveness uniformly onto the surface of the steel sheet or improving adhesion between the surface of the steel sheet and plating coating or the like.To remove scale or rust, acid washing using an acid detergent solution for a metal (hereinafter, also referred to as an “acid solution”) is usually performed. Examples of the acid detergent solution for a metal include aqueous solutions of inorganic acids such as sulfuric acid, hydrochloric acid and nitric acid; organic acids such as phosphoric ...

METHOD FOR EXFOLIATING COATING LAYER OF ELECTRODE FOR ELECTROLYSIS

The present invention relates to a method for effectively exfoliating a coating layer from the surface of the conductive substrate of a used electrode for electrolysis comprising an insoluble metal electrode having the coating layer containing electrode substance comprising noble metals and/or their metal oxides on the surface of the used electrode substrate comprising valve metals, such as titanium and tantalum or valve metal alloys, and then to recover the electrode substances and/or electrode substrate for recycling use. The method for exfoliating comprises the steps of treating the insoluble metal electrode surface having the coating layer, in succession, with an alkali treatment process using a caustic alkali aqueous solution, a heating and a baking process and an acid treatment process, the alkali treatment process being conducted by applying an alkali treatment solution prepared by adding thickener to the caustic alkali aqueous solution. 2. The method for exfoliating the coating layer from the surface of the electrode substrate as in claim 1 , wherein the thickener comprising natural polysaccharide thickener is applied.3. The method for exfoliating the coating layer from the surface of the electrode substrate as in claim 2 , wherein the thickener comprising bio gum or guar gum derivatives or cellulose derivatives are applied as the natural polysaccharide thickener.4. The method for exfoliating the coating layer from the surface of the electrode substrate as in claim 1 , wherein the thickener comprising carboxymethil cellulose is applied as thickener.5. The method for exfoliating the coating layer from the surface of the electrode substrate as in claim 1 , wherein the thickener comprising xanthan gum is applied as thickener.6. The method for exfoliating the coating layer from the surface of the electrode substrate as claim 1 , wherein the addition ratio of the thickener in the alkali treatment solution is 0.2 mass % or more but 1 mass % or less.7. The method ...

USE OF NITROGEN COMPOUNDS IN THE PICKLING OF STAINLESS STEEL

The present invention relates to an acidic aqueous solution suitable for the pickling of stainless steel grades that comprises accelerators based on water soluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of −2 to −⅓. The present invention further encompasses a process for the pickling of stainless steel that makes use of a pickling solution comprising the above-mentioned accelerators. 2. The acidic aqueous solution according to claim 1 , wherein the amount of accelerators based on water soluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of −2 to −⅓ is not more than 20 g/l claim 1 , but at least 0.1 g/l claim 1 , calculated on a nitrogen basis.3. The acidic aqueous solution according to claim 1 , wherein the accelerators based on water soluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of −2 to −⅓ are selected from hydrazine claim 1 , hydrazoic acid claim 1 , hydroxylamine claim 1 , water soluble salts of hydrazine claim 1 , water soluble salts of hydrazoic acid claim 1 , water soluble salts of hydroxylamine and mixtures thereof.4. The acidic aqueous solution according to wherein iron ions are present in an amount of at least 15 g/l.5. The acidic aqueous solution according to wherein the iron ions are present and comprise at least 10 g/l claim 1 , but not more than 60 g/l of ferric ions.6. The acidic aqueous solution according to wherein the solution has a molar ratio of ferric ions to ferrous ions of at least 0.2 claim 4 , and not more than 10.7. The acidic aqueous solution according to wherein the solution has a redox potential of at least +230 mV claim 1 , but not more than +800 mV.8. A process for the pickling of stainless steel wherein a stainless steel surface is brought into contact with a pickling solution comprising:a) 0.2 to 2.1 mol/l of at least one strong free acid with a pK-value of the first ...

CLEANING COMPOSITIONS AND METHODS FOR REMOVING OXIDES FROM SUPERALLOY SUBSTRATES

Methods for cleaning a superalloy substrate having engine deposits on its surface are provided. The method may include applying a permanganate solution onto the surface of the superalloy substrate, and applying a ferric chloride based cleaning composition onto the surface of the superalloy substrate. The ferric chloride based cleaning composition includes ferric chloride and at least one of nitric acid and phosphoric acid, such as within a solvent system (e.g., an aqueous solution including water). 1. A method of cleaning a superalloy substrate having engine deposits on its surface , the method comprising:applying a permanganate solution onto the surface of the superalloy substrate; andapplying a ferric chloride based cleaning composition onto the surface of the superalloy substrate, wherein the ferric chloride based cleaning composition comprises ferric chloride and at least one of nitric acid and phosphoric acid.2. The method of claim 1 , wherein the ferric chloride based cleaning composition comprises ferric chloride claim 1 , nitric acid claim 1 , and phosphoric acid.3. The method of claim 1 , wherein the ferric chloride based cleaning composition further comprises a solvent system.4. The method of claim 3 , wherein the solvent system comprises water.5. The method of claim 3 , wherein the ferric chloride based cleaning composition consists of ferric chloride claim 3 , nitric acid claim 3 , phosphoric acid claim 3 , and the solvent system.6. The method of claim 1 , wherein the ferric chloride based cleaning composition comprises about 130 g/L to about 160 g/L ferric chloride claim 1 , about 95 g/L to about 115 g/L nitric acid claim 1 , and about 115 g/L to about 145 g/L phosphoric acid.7. The method of claim 1 , wherein the ferric chloride based cleaning composition comprises about 140 g/L to about 160 g/L ferric chloride claim 1 , about 95 g/L to about 115 g/L nitric acid claim 1 , and about 115 g/L to about 145 g/L phosphoric acid.8. The method of claim 1 , ...

Compositions for dissolution of low-k dielectric films, and methods of use

An improved composition and method for cleaning the surface of a semiconductor wafer are provided. The composition can be used to selectively remove a low-k dielectric material such as silicon dioxide, a photoresist layer overlying a low-k dielectric layer, or both layers from the surface of a wafer. The composition is formulated according to the invention to provide a desired removal rate of the low-k dielectric and/or photoresist from the surface of the wafer. By varying the fluorine ion component, and the amounts of the fluorine ion component and acid, component, and controlling the pH, a composition can be formulated in order to achieve a desired low-k dielectric removal rate that ranges from slow and controlled at about 50 to about 1000 angstroms per minute, to a relatively rapid removal of low-k dielectric material at greater than about 1000 angstroms per minute. The composition can also be formulated to selectively remove a photoresist layer, leaving the underlying low-k dielectric layer essentially intact.

Compositions for dissolution of low-K dielectric films, and methods of use

An improved composition and method for cleaning the surface of a semiconductor wafer are provided. The composition can be used to selectively remove a low-k dielectric material such as silicon dioxide, a photoresist layer overlying a low-k dielectric layer, or both layers from the surface of a wafer. The composition is formulated according to the invention to provide a desired removal rate of the low-k dielectric and/or photoresist from the surface of the wafer. By varying the fluorine ion component, and the amounts of the fluorine ion component and acid, component, and controlling the pH, a composition can be formulated in order to achieve a desired low-k dielectric removal rate that ranges from slow and controlled at about 50 to about 1000 angstroms per minute, to a relatively rapid removal of low-k dielectric material at greater than about 1000 angstroms per minute. The composition can also be formulated to selectively remove a photoresist layer, leaving the underlying low-k dielectric layer essentially intact.

Metal finishing process and composition

Method for cleaning semiconductor device having dual damascene structure

A method to clean a dual damascene structure includes forming a photoresist pattern on an interlayer dielectric; forming a dual damascene structure by etching the interlayer dielectric using the photoresist pattern as an etch mask; removing the photoresist pattern by an ashing process; and cleaning the dual damascene structure with a cleaning solution mixture that includes a first solution for removing polymer (that may be formed during the etching of the interlayer dielectric) and photoresist residue, and a second solution for removing native oxide (that may be formed on the bottom of the dual damascene structure). The first solution may include an organic solution further including hydroxylamine, and the second solution includes an HF solution or buffered HF solution. The cleaning step may also use an additive that has metal corrosion resistance.

Ultrasonic assisted etch using corrosive liquids

An ultrasonic etching apparatus for chemically-etching a workpiece is disclosed. The apparatus includes an outer tank at least partially filled with an aqueous solution, an inner tank at least partially disposed within the outer tank and in contact with aqueous solution, the inner tank at least partially filled with an etching solution, a lid engaged with the mouth of said inner tank; and an ultrasonic transducer coupled to the outer tank to impart ultrasonic energy to the etching solution in said inner tank. Also disclosed are methods of using the apparatus to etch workpieces.

Non-oxidative removal of gold films

A gold film is debonded from a glass substrate without oxidizing and dissolving the gold by contacting the metallic gold-coated substrate with an aqueous sulfuric acid solution consisting essentially of a soluble halide selected from the group consisting of alkali metal halides, alkaline earth metal halides, ammonium halides and hydrogen halides.

Beizpasten zur Reinigung der Oberflaechen von Werkstuecken aus VA-Staehlen

Method for inhibiting oxidation of ferrous metals with alkyl glycosides and composition for cleaning ferrous metals

Glycosides and polyglycosides are described having the formula R(OG)x wherein R is an aliphatic hydrocarbon radical having from 1 to 25 carbon atoms or is a radical with the formula R1(OR2)n which does not have more than 25 carbon atoms and wherein n=0 to 24 and R1 and R2 are aliphatic hydrocarbon radicals, G is selected from the group consisting of fructose, glucose, mannose, galactose, talose, gulose, allose, altrose, idose, arabinose, xylose, lyxose, ribose or mixtures thereof, and x is 1 to 30 which glycosides and polyglycosides inhibit oxidation and acid attack of ferrous metals.

Solutions for chemical dissolution treatment of metal materials

The present invention relates to solutions used for chemical dissolution treatment such as, pickling, etching, chemical polishing, etc., of metallic materials. In such a treatment, however, where hydrogen peroxide is used as an oxidizing agent, a considerable excess of the agent is required due to low efficiency. On the other hand, when chloride ions are contained in the solution, the dissolution rate of metallic materials is remarkably decreased. The present invention has overcome the above difficulties by using a solution for chemical dissolution treatment of metallic materials containing hydrogen peroxide, an acid and at least one of an alcohol polyoxyethylene ether, an alkylsulfonic acid, an alkyl hydrogen phosphate, an alkyl hydrogen phosphite, an alkyl hydrogen sulfate and their salts.

Method for cleaning etcher parts

The invention relates to a method useful in removing etch residue from etcher equipment parts. The compositions used are aqueous, acidic compositions containing fluoride and polar, organic solvents. The compositions are free of glycols and hydroxyl amine and have a low surface tension and viscosity.

高效酸性清洗剂

高效酸性清洗剂，以清洗剂为100重量份计，其中至少含有磷酸20‑42份、聚马来酸酐0.5‑5份、有机二元酸0.5‑5份、仲醇0.5‑5份、式(A)所示的化合物0.05‑1份、式(B)所示的化合物0.5‑5份、式(C)所示的化合物0.05‑1份、水余量；R 1 ‑O‑(CH 2 CH 2 O) x ‑H(A)，其中，R 1 为含有碳原子数1‑15的烃基，x为1‑20的正整数；R 2 ‑O‑(CH 2 CH 2 O) y ‑H(B)，其中，R 2 为含有碳原子数1‑10的烃基，y为1‑10的正整数； (C)，R 3 、R 4 分别独立的选自氢原子、烃基、酰基、脒基、芳香基，且R 3 、R 4 不可同时为氢原子；所述磷酸的质量分数为85％，所述仲醇含有3‑10个碳原子。

Ultrasonic assisted etch using corrosive liquids

가공물을 화학적으로 에칭하기 위한 초음파 에칭 장치가 설명된다. 이 장치는 적어도 부분적으로 수용액으로 충전된 외측 탱크와, 외측 탱크 내에 적어도 부분적으로 배치되고 수용액과 접촉하며 에칭 용액으로 적어도 부분적으로 충전되는 내측 탱크와, 내측 탱크의 입부와 결합되는 뚜껑과, 초음파 에너지를 내측 탱크 내의 에칭 용액에 전달하도록 외측 탱크에 연결된 초음파 변환기를 포함한다. 또한, 가공물을 에칭하기 위해 이러한 장치를 이용하는 방법이 설명된다. An ultrasonic etching apparatus for chemically etching a workpiece is described. The apparatus includes an outer tank at least partially filled with an aqueous solution, an inner tank at least partially disposed in the outer tank and in contact with the aqueous solution and at least partially filled with an etching solution, a lid coupled with the mouth of the inner tank, and ultrasonic energy. An ultrasonic transducer connected to the outer tank to deliver the to the etching solution in the inner tank. In addition, a method of using such an apparatus for etching a workpiece is described. 초음파 에칭 장치, 내측 탱크, 외측 탱크, 초음파 변환기 Ultrasonic Etching Equipment, Inner Tank, Outer Tank, Ultrasonic Converter

Method for the acid etching of stainless steel products

내용 없음. No content.

Состав дл удалени накипи

Сущность изобретени : состав содержит , мас.%: сульфаминовую кислоту 10-30, уротропин 1-3, калий кислый виннокислый 20-40, лаурокс-9 - полиоксиэтиленгликоле- вый эфир лауриновой кислоты 1-2 и сульфат натри  остальное. Сульфаминовую кислоту и калий кислый виннокислый св зывают катионы металлов в соединени , уротропин - ингибитор коррозии. Сульфат натри  - ионизирующа  добавка. Эффективность удалени  накипи достигаетс  применением в качестве разм гчени  накипи и ускорител  процесса лаурокса-9. 1 табл.

Method for removing corrosion products from metal products

СПОСОБ УДАЛЕНИЯ ПРОДУКТОВ КОРРОЗИИ С МЕТАЛЛИЧЕСКИХ ИЗДЕЛИЙ, включающий наложение вибрации при обработке в растворе, отличающийс  тем, что, с целью снижени  расхода электроэнергии и повышени  скорости процесса, вибрацию сообщают непосредственно изделию с периодическим чередованием высокочастотных колебаний 200-400 Гц и низкочастотных колебаний 20-50 Гц при соотношении длительности воздействи  высоких и низких частот 1:0,5 - 1:5 и амплитуде колебани  издели  не менее 10 мкм. A METHOD FOR REMOVING CORROSION PRODUCTS FROM METAL PRODUCTS, including the imposition of vibration during processing in solution, characterized in that, in order to reduce energy consumption and increase the speed of the process, vibration is directly reported to the product with periodic alternation of high-frequency oscillations 200-400 Hz and low-frequency oscillations 20-50 Hz with the ratio of the duration of exposure to high and low frequencies 1: 0.5–1: 5 and the amplitude of oscillation of the product is not less than 10 µm.

金属清洗剂

本发明提供一种金属清洗剂，它包括以下质量份的原料：乙醇酸10-20份、苹果酸1-6份、十二烷基苯磺酸钠5-10份、柠檬酸钠1-5份、硅酸钾0.2-0.4份、硫酸钾0.3-0.8份和水65-75份。上述金属清洗剂对金属无损害；用法简单，在常温下即可使用，去污力强，能够去除在加工过程中机械零件表面产生的残留物质；同时还具有杀菌的作用，防止细菌滋生。

环保型水基金属重油污清洗剂

本发明公开了一种环保型水基金属重油污清洗剂，按质量份数组成为：醇胺醚5‑30份、乙酸1‑8份、螯合剂0.5‑7份、杀菌防腐剂0.1‑3份、酒石酸5‑20份、脂肪酸甲酯乙氧基化物磺酸盐5‑15份、非离子表面活性剂混合物10‑30份、分散稳定剂0.5‑5份。本发明醇胺醚具有清洗、防锈、润滑等多种特性，能有效提高清洗剂的清洗效果。该种清洗剂能有效去除因重油产生的油污，除油率可达98%以上。本发明中不含有磷物质，并且表面活性均可生物降解或自行降解，不会对环境造成污染，本发明制备的清洗剂效果明显，清洗效率高，并且能有效地防止金属腐蚀。

不锈钢复合板喷淋酸洗、抛光、钝化的方法及装置配置

一种不锈钢复合板喷淋酸洗、抛光、钝化的方法及装置配置主要由安装架2、喷液管4、支架5、输液管6、回收槽7、热水槽8、酸洗槽9、抛光槽10、钝化槽11、泵12、排水管13、自来水管14、耐酸供液阀15、热水阀16、耐酸回液阀17、水阀18组成，其中安装架置于回收槽上方，喷液管在支架衬托下对准安装架，喷液管联通泵，在自来水管与泵联通的管路中依次联接有热水阀和三个耐酸供液阀，热水阀联通热水槽，三个耐酸供液阀分别联通酸洗槽、抛光槽和钝化槽，在四个槽的上方通过水阀设置一条盲管路，该水阀与排水管联通，盲管路中的一端联通回收槽，另四端通过一个水阀和三个耐酸回液阀依次联通热水槽、酸洗槽、抛光槽和钝化槽。

Composition for dissoluting corrosive deposits

FIELD: chemistry. SUBSTANCE: composition is proposed, containing, wt %: hydrochloric acid 20.0-35.0, hexamethylene tetramine 3.0-8.0, surfactant 0.5-4.0, isopropyl alcohol 5.0-10.0, oleic acid - 0.5-2.0, water diluent is the rest. EFFECT: composition provides an increased rate of dissoluting corrosive deposits and has reduced consumption when used to remove rust from hard surfaces. 5 cl, 14 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 627 377 C1 (51) МПК C23G 1/02 (2006.01) C01G 49/02 (2006.01) C23F 1/16 (2006.01) C23F 1/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016150668, 22.12.2016 (24) Дата начала отсчета срока действия патента: 22.12.2016 08.08.2017 Приоритет(ы): (22) Дата подачи заявки: 22.12.2016 (56) Список документов, цитированных в отчете о поиске: RU 2520168 C2, 20.06.2014. RU (45) Опубликовано: 08.08.2017 Бюл. № 22 2 6 2 7 3 7 7 R U Стр.: 1 C 1 (54) Композиция для растворения коррозионных отложений (57) Реферат: Изобретение относится к области борьбы с Состав обеспечивает повышенную скорость коррозионными отложениями. Предложен состав, растворения коррозионных отложений и имеет содержащий, мас.% : соляная кислота - 20,0-35,0, пониженный расход при его использовании для гексаметилентетрамин - 3,0-8,0, ПАВ - 0,5-4,0, удаления ржавчины с твердых поверхностей. 4 изопропиловый спирт - 5,0-10,0, олеиновая з.п. ф-лы, 14 пр. кислота - 0,5-2,0, водный разбавитель – остальное. 2 6 2 7 3 7 7 Адрес для переписки: 127562, Москва, а/я 67, ООО "АСИРИС-М", для Е.В. Корниенко 2507312 C1, 20.02.2014. RU 2386729 C2, 20.04.2010. RU 2482223 C2, 20.05.2013. RU 2554006 C1, 20.06.2015. RU 2059676 C1, 10.05.1996. R U (73) Патентообладатель(и): Годзоев Олег Александрович (RU), Терешко Вячеслав Федорович (RU), Григорян Эдуард Григорьевич (RU) Дата регистрации: C 1 (72) Автор(ы): Лавров Мстислав Игоревич (RU) RUSSIAN FEDERATION (19) RU (11) (13) 2 627 377 C1 (51) Int. Cl. C23G 1/02 (2006.01) C01G 49/02 ( ...

一种常温快速清除金属表面氧化层的除锈剂制备方法

本发明涉及一种常温快速清除金属表面氧化层的除锈剂制备方法，包括以下步骤：先在1000ml烧杯中加入200g水，再加入99.5%丙烯酸100g，常温下搅拌1?2小时；再加入45%氟锆酸100g，常温下搅拌1?2小时；再加入31%盐酸400g，常温下搅拌0.5?1小时；再加入99%甲烷磺酸200g，常温下搅拌1?1.5小时，即得本除锈剂。本发明在常温下处理，且清除金属表面氧化层的时间快，一般只需10?15min。而且不会引起氢脆现象。同时大大提高了除锈剂槽液的使用寿命，除锈剂配槽浓度低，也降低了使用成本。

Method for removing surface pollution impurities of silicon wafer

本发明公开了一种清除硅片表面污染杂质的方法，属于半导体器件清洗的技术领域；该清除硅片表面污染杂质的方法分为以下步骤：水洗、酸洗、碱洗、有机溶剂洗涤和真空干燥。本清洗方法有以下优点：1.无机污染物、有机物污染物和微生物通过清洗液的清洗之后，都变成易溶于水的离子状态或者易挥发的气体状态，不易残留在硅片表面；2.清洗剂中所使用的物料简单易得，并且便于储存；3.所使用的清洗原料绿色环保且成本低廉；4.清洗液便于回收使用。

Metal heat treatment process capable of prolonging service life of metal product

本发明涉及金属热处理技术领域，公开了一种能够延长金属制品的使用寿命的金属热处理工艺，包括以下步骤：步骤一：将金属工件表面采用酸洗液进行酸洗，之后放入清水中反复冲洗3‑5次后放入烘箱中干燥20min‑40min。本发明可以预先对金属工件施加一定的压缩应力，使其拥有一定的压缩残留应力，在一定程度上提高疲劳寿命的，同时利用去毛刺设备和不规则金属抛光机增加金属工件表面光洁度，使其初始裂纹延伸困难，本发明通过采用纳米液体膜，可以利用纳米液体膜在金属工件表面形成硬化层，避免了金属工件表面上锈，同时还具有隔热保温和防紫外线。

Method to make a cleaning solution for a metal sheet

A cleaning soln. for metal sheet comprises water 64 wt.%, sodium carbonate 0.5 wt.%, phosphoric acid 0.5 wt.%, nonylphenol 10 wt.%, and 1,1,1-trichloroethane 25 wt.%. The cleaning soln. shows pH 6.7, and is useful for removing rust, oil, scale, etc. on a metal sheet.

酸洗液性能在线检测系统及方法

本发明公开了一种酸洗液性能在线检测系统，其包括：过滤器、输液泵、储液罐、上回流管、液位计、温度计、密度计、电导率仪、自动阀、下回流管、酸浓度分析系统；储液罐与酸罐之间设置有进口管路，输液泵设置于进口管路，输液泵的入口处安装有过滤器；储液罐的下部通过下回流管而连接于酸罐，下回流管设置有自动阀；储液罐的上部通过上回流管而连接于酸罐；储液罐设置有接于酸浓度分析系统的液位计、温度计、密度计、电导率仪。本发明可用于实时检测盐酸、硫酸、和硝酸酸洗液中酸浓度和铁离子浓度，系统具有测试精度高，所预测的酸洗液中酸浓度和铁离子浓度与实测值相近的特点，系统与酸洗液控制系统相连可实现酸洗线的自动进酸和排酸。

Gelled rust remover

(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。

Metal surface treating agent

(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。

Deep groove cleaning solution after 3D NAND structure piece dry etching

本发明公开了一种3D NAND结构片干法蚀刻后的深沟槽清洗液，该清洗液的主要成分包括占清洗液10‑40质量%硝酸、0.1‑0.5质量%氢氟酸、0.01‑0.5质量%氟硅改性仲胺类有机物，0.1‑5质量%醇胺类缓蚀剂，其余为水。该清洗液能将3D NAND结构片干法蚀刻的深沟槽深宽比80:1及以下的深沟槽侧壁聚合物残渣快速清洗干净。

Pickling agent compositions of high perfromance

PURPOSE: A pickling agent composition which has increased corrosion resistance and pickling performance without reducing the surface brightness of a steel sheet is provided. CONSTITUTION: The pickling agent composition is characterized in that it comprises at least one additive selected from a polycyclic amine represented by (CH2)6Nn1Hn2, wherein n1 is within 1 to 4, n2 is within 0 to 4; a polypeptide-based compound represented by formula I, wherein n is 25 to 1500, R1 and R2 is respectively hydrogen, alkyl or aryl containing C1 to C12 functional groups of amino acid; a phenyl methyl pyrazole represented by C10Hn1Nn2O, wherein n1 is within 10 to 12, n2 is within 1 to 2; and a stearyl chloride represented by CH3(CH2)nCl, wherein n is 15 to 20. In case that the pickling agent composition contains just one additive, each additive contained in the pickling agent composition is as follows: polycyclic amine 0.1-20g/L; polypeptide-based compound 0.1-20g/L; phenyl methyl pyrazole 0.1-10g/L; stearyl chloride 0.1-10g/L. In the case that the pickling agent composition contains more than two kinds of additives, the total amount of additives is regulated within 0.1 to 20g/L.

Solution for removing magnesium chloride compound from a surface contaminated therewith

A solution containing approximately 40–60% by weight phosphoric acid, approximately 1–6% by weight a surfactant, approximately 0.5–5% by weight an inhibitor, and the remaining percentage by weight made up of water for removing magnesium chloride from certain materials, namely aluminum, aluminum alloys, steel, rebar, chrome, plastics, ceramics, rubber, including insulation on electrical wiring, and painted surfaces including those previously mentioned. The solution may be applied in various ways, including through a low-pressure sprayer or similar device used in car and truck washing service areas. Alternatively, the solution may be applied as a mask or coating, and after a period of time rinsed away from the contaminated surface.

Method for recycling waste cemented carbide sludge

본 발명은, 텅스텐 카바이드와 코발트를 주성분으로 포함하는 폐초경합금 슬러지를 헥산 또는 에탄올에 담그고 교반하여 상기 폐초경합금 슬러지에 함유된 절삭유 성분을 제거하고, 절삭유 성분이 제거된 폐초경합금 슬러지에 함유된 불순물을 녹여 제거하기 위하여 1차 산처리하여 텅스텐 카바이드 분말 또는 텅스텐 옥사이드 분말을 만들고, 잔류하는 불순물 성분에 의해 뭉쳐 있는 텅스텐 카바이드 분말 또는 텅스텐 옥사이드 분말을 미분화하여 표면적을 높이기 위해 분쇄한 후, 분쇄된 분말 표면에 존재하거나 분쇄공정에 의해 떨어져 나온 불순물을 녹여 제거하기 위하여 2차 산처리하여 텅스텐 카바이드 분말 또는 텅스텐 옥사이드 분말을 만드는 폐초경합금 슬러지의 재생 방법에 관한 것이다. 본 발명에 의한 폐초경합금의 재생 방법에 의하면, 산화 공정이나 환원 공정이 필요 없으므로 입자 성장 억제제 등의 불순물의 유입이 적어 순도가 높고 에너지의 소모가 적으며 공정 중에 입자 성장이 일어나지 않아 미립의 분말을 얻을 수 있으며 공정이 비교적 간단하고 재현성이 있다. The present invention, the waste cemented carbide sludge containing tungsten carbide and cobalt as a main component in hexane or ethanol and stirred to remove the cutting oil components contained in the waste cemented carbide sludge, impurities contained in the waste cemented carbide sludge from which the cutting oil components are removed Primary acid treatment is performed to dissolve and remove tungsten carbide powder or tungsten oxide powder, and the tungsten carbide powder or tungsten oxide powder agglomerated by the remaining impurity components is pulverized to increase the surface area and then pulverized to increase the surface area. The present invention relates to a method of regenerating waste cemented carbide sludge which is made by tungsten carbide powder or tungsten oxide powder by secondary acid treatment to dissolve and remove impurities present or separated by the grinding process. According to the regeneration method of the cemented carbide according to the present invention, since no oxidation process or reduction process is required, impurities such as particle growth inhibitors are less introduced, resulting in high purity, low energy consumption, and no grain growth during the process. Obtainable and the process is relatively simple and reproducible. 폐초경합금 슬러지, 스크랩(scrap), 재생(recycle), 텅스텐 카바이드(tungsten carbide), 텅스텐 옥사이드(tungsten oxide) Waste cemented carbide sludge, scrap, recycle, tungsten carbide, tungsten oxide

Use of alkanesulphonic acid for cleaning in sugar industry

FIELD: food industry. SUBSTANCE: invention relates to sugar industry, more specifically to cleaning of plants containing reactors, evaporators, containers, valves, hoses, pipelines used in production of sugar from natural plant materials, such as sugarcane or sugar beet. Disclosed is use of one alkanesulphonic acid of formula R-SO 3 H, where R denotes a saturated, linear or branched hydrocarbon chain containing 1 to 4 carbon atoms, for cleaning from solid deposits containing at least one aconitic acid salt. Also disclosed is a method of cleaning a surface from solid deposits containing at least one aconitic acid salt, comprising at least one step of contacting an effective amount of one alkanesulphonic acid, with said solid deposits, which must be removed by contact, immersion, spraying, spraying, application of more or less thick layer. EFFECT: invention provides efficient removal of solid deposits containing at least one aconitic acid salt, without the need to use EDTA, EDTA salts or strong organic acids. 14 cl, 1 tbl, 10 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 695 848 C2 (51) МПК C23G 1/02 (2006.01) C13B 25/00 (2011.01) C11D 7/34 (2006.01) B08B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23G 1/02 (2019.05); C13B 25/00 (2019.05); C11D 7/34 (2019.05); B08B 3/08 (2019.05) (21)(22) Заявка: 2017134350, 08.04.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АРКЕМА ФРАНС (FR) Дата регистрации: 29.07.2019 21.04.2015 FR 1553575 (43) Дата публикации заявки: 04.04.2019 Бюл. № 10 (56) Список документов, цитированных в отчете о поиске: US 4923523 A, 08.05.1990. WO 2008144501 A2, 27.11.2008. EA 18739 B1, 30.10.2013. RU 2515224 C2, 10.05.2014. GB 2011480 A, 11.07.1979. (45) Опубликовано: 29.07.2019 Бюл. № 22 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2017 2 6 9 5 8 4 8 Приоритет(ы): (30) Конвенционный приоритет: R U 08.04.2016 (72) Автор(ы): ...

Patent JPS5951599B2

Method for integrated circuit patterning

본 발명은 목표 패턴을 형성하는 방법에 관한 것으로서, 제1 마스크를 이용하여 복수의 라인을 기판 위에 형성하는 단계와, 기판 위에, 복수의 라인 위에 그리고 복수의 라인의 측벽 상에 스페이서 층을 형성하는 단계를 포함한다. 또한, 본 발명의 방법은 복수의 라인과 기판을 노출시키기 위해 스페이서 층의 적어도 일부를 제거하는 단계를 포함한다. 또한, 본 발명의 방법은 복수의 라인의 측벽 상에 배치되는 스페이서 층을 수축시키는 단계와, 복수의 라인을 제거함으로써 패터닝된 스페이서 층을 기판 위에 제공하는 단계를 포함한다. The present invention relates to a method of forming a target pattern, comprising: forming a plurality of lines on a substrate using a first mask, and forming a spacer layer on the substrate, on the plurality of lines and on sidewalls of the plurality of lines Steps. The method also includes removing at least a portion of the spacer layer to expose the plurality of lines and the substrate. The method also includes shrinking a spacer layer disposed on the sidewalls of the plurality of lines, and providing a patterned spacer layer over the substrate by removing the plurality of lines.

method of cleaning a substrate

상부 표면에 금속 박막 패턴을 갖는 반도체 기판을 세정하기 위한 방법이 개시되어 있다. 세정액으로서 탈이온수에 희석시킨 희석 황산수를 사용한다. 그리고, 상기 세정을 실시할 때 메가소닉을 상기 희석 황산수가 제공되는 기판에 전달한다. 이에 따라, 상기 희석 황산수에 의한 반응과 상기 메가소닉에 의한 반응을 통하여 상기 기판에 존재하는 오염 물질이 제거된다. 이와 같이, 상기 희석 황산수를 사용함으로서 상기 기판 특히, 상기 금속 배선을 갖는 기판에서 상기 금속 배선이 부식되는 것을 줄일 수 있고, 상기 메가소닉의 에너지에 의해 가해지는 기판의 손상을 줄일 수 있다. A method for cleaning a semiconductor substrate having a metal thin film pattern on its top surface is disclosed. Dilute sulfuric acid water diluted in deionized water is used as the washing liquid. And, when performing the cleaning, the megasonic is transferred to the substrate provided with the diluted sulfuric acid water. Accordingly, contaminants present on the substrate are removed through the reaction with the dilute sulfuric acid water and the reaction with the megasonic. As such, by using the dilute sulfuric acid water, corrosion of the metal wiring in the substrate, in particular, the substrate having the metal wiring, can be reduced, and damage to the substrate applied by the energy of the megasonic can be reduced.

Environment-friendly metal cleaner

本发明公开了一种环保型金属清洗剂，其按重量份比其由以下组分组成：油酸40-50份；碳酸钠20-30份；焦磷酸钾10-15份；三乙醇胺10-15份；乙醇5-15份；十六烷胺5-8份；异丙醇8-16份；去离子水40-50份。本发明的金属清洗剂成本低且不含磷，使得本发明清洗剂整体而言环保无害，同时其能够有效去除金属表面油脂等污垢，保证金属表面清洗后长久不生锈。

The two-in-one cleaning agent of non-ferrous metal

本发明提供一种有色金属二合一清洗剂，它由以下组分按重量百分比组成：硫酸10％～15％；盐酸20％～30％；柠檬酸钠3％～10％；草酸2％～4％；十二烷基硫酸钠2％～4％；JFC2％～4％；碳酰脲2％～4％；BTA 3％～6％；余量为水。它的效果在于：1、本发明使用周期较长，正常使用时，一般2‑3个月更换一次；2、可将除油、除锈二合为一，节省工序和装置；3、对黄铜、锌、锡、银等部件的清洗，具有较好的防变色能力；4、在常温下即可使用，节省能耗，降低成本。

A kind of control system and method for the acid discharge of acid cleaning process section

本发明公开了一种酸洗工艺段排酸的控制系统及方法，控制系统包括处理器，以及分别与所述处理器电连接的废酸电动阀、平衡电动阀、蒸汽切断阀、紧急排酸阀和液位计。本发明能够根据酸洗工艺需要自动控制排酸和加酸操作，减小操作人员的工作强度，提高生产效率，同时避免酸雾对操作人员身体的危害，具有很好的实用性。此外，本发明还可以应用于其他同类系统，具有很好的通用性。

Method and device for fickling the edge portions of a sheet immersed in a reactive solution, in particular a hot rolled sheet

초음파 발생기(4)의 하단부(5)가, 산세척되는 열간 압연판(3)이 투입된 반응 용액(2)에 잠겨있고, 상기 하단부(5)에 열간 압연판(3)의 가장자리부의 양측에 각각 두 복면을 포함하는 평탄한 방출면이 열간 압연판과 평행하게 구성되는 두 개의 파빌리온 전극(6)(7)을 구비함으로써, 두 전극(6)(7)이 역상으로 진동하고, 진동의 진폭이 충분히 크다면 가장자리부의 면(3a)(3b)과 전극사이에 위치하는 용액에만 공동이 생성되어 가장자리부의 스케일제거율을 상당히 향상시키도록 하는 산세척방법 및 장치. The lower end portion 5 of the ultrasonic generator 4 is immersed in the reaction solution 2 into which the hot rolled plate 3 to be pickled is introduced, and on both sides of the edge portion of the hot rolled plate 3 to the lower end portion 5, respectively. By providing two pavilion electrodes 6 and 7 in which a flat emitting surface comprising two masks is arranged in parallel with the hot rolled plate, the two electrodes 6 and 7 vibrate in reverse phase and the amplitude of the vibration is sufficiently If large, a pickling method and apparatus in which a cavity is created only in the solution located between the edges (3a) and (3b) of the edge, thereby significantly improving the descaling rate of the edge.

A kind of Cleaning and Passivation method of heat-exchange system equipment

本发明提供一种换热系统设备的清洗钝化方法，包括如下步骤，清洗前准备，清洗剂的配置，依次加入有机膦酸、聚羧酸共聚物、乌洛托品及水，开动搅拌杆，搅拌约40min，即可；化学清洗打开所要清洗的设备的进出口管道阀门投加清洗剂、表面活性剂，清洗8‑15h；检测洗净率达90%，除垢率达90%以上后钝化少量换水，投加钝化助剂，控制循环水pH在5.5‑6.0，经过8‑12h后钝化完成，即可完成换热系统设备的清洗钝化。该发明的过程简单，稳定性好，试用范围广，钝化效果快速高效并能有效节约水资源。

Removal of oxide scale

METHOD FOR CLEANING COPPER SURFACES AND ITS ALLOYS FROM CORROSION PRODUCTS AND OXIDATION OF COPPER (II) COMPOUNDS

1. Способ очистки поверхностей меди и ее сплавов от продуктов коррозии или окисления соединениями меди (II) путем обработки раствором кислоты в присутствии окислителя, отличающийся тем, что в качестве окислителя используют кислород воздуха, а само удаление отложений с поверхностей металла или его сплавов проводят путем обработки разбавленным водным раствором азотной или серной кислоты в количестве, достаточном для расходования отложений, для полного погружения очищаемого объекта в раствор, организации в нем интенсивного перемешивания, перемешивания и барботажа или одного барботажа воздуха, сам процесс ведут в отсутствии подвода внешнего тепла при текущем контроле за накоплением кислоты и соединений меди (II) в растворе и отчасти в суспендированном виде и завершают после прекращения накоплений указанных компонентов; далее отработанный раствор (суспензию) аккуратно сливают, металл или сплав один-два раза промывают дистиллированной водой, сушат, взвешивают и используют по назначению.2. Способ по п.1, отличающийся тем, что тип, материал и размеры реактора, а также материалы из которых изготовлены его элементы, организацию механического перемешивания и барботажа или одного барботажа воздуха выбирают с учетом размеров и конфигурации очищаемой поверхности, представлена ли эта поверхность одним или же несколькими объектами, либо в измельченном до уровня стружки и опилок виде, а также массы очищаемого металла или сплава и относительного количества продуктов коррозии или окислителя на них. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C23F 1/18 (11) (13) 2014 106 143 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014106143/02, 19.02.2014 Приоритет(ы): (22) Дата подачи заявки: 19.02.2014 (43) Дата публикации заявки: 27.08.2015 Бюл. № 24 (72) Автор(ы): Иванов Анатолий Михайлович (RU), Елисеева Анна Юрьевна (RU), Пожидаева Светлана Дмитриевна (RU) Стр.: 1 A 2 0 1 4 1 0 6 1 4 3 R U A (57) Формула изобретения 1. Способ очистки ...

Coating composition and rust removing method therewith

(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。

A kind of Deruster for metal and preparation method thereof

本发明公开了一种金属除锈剂及其制备方法，该除锈剂由以下质量份数的组分组成：十二烷基磺酸钠1‑5份、三乙胺醇2‑5份、月桂醇聚氧乙烯醚2‑4份、磷酸二氢锌2‑10份、氯化镁2‑4份、硅酸钠3‑8份、磷酸10‑20份、氢氧化铜2‑8份、硝酸镍1‑3份、活性炭5‑8份、去离子水40‑55份。制备方法：a、按照质量份数称取组分；b、加入月桂醇聚氧乙烯醚；c、继续搅拌15‑25分钟至完全溶解。本发明制备的除锈剂能够在较短时间内完全去除金属表面锈迹，同时能够保证除锈后金属能够使用较长的时间不再生锈，除锈后金属表面不仅无锈迹，并且表明光亮。

Method for integrated circuit patterns

本发明提供了一种形成目标图案的方法，包括：在使用第一掩模在衬底上方形成多条线，以及在衬底上方、多条线上方和多条线的侧壁上形成间隔件层。该方法进一步包括去除间隔件层的至少一部分以暴露多条线和衬底。该方法进一步包括收缩设置在多条线的侧壁上的间隔件层并去除多条线，从而在衬底上方产生图案化的间隔件层。本发明还涉及用于集成电路图案化的方法。

A kind of cast member oxide layer cleaning solution and its production method

本发明公开了一种铸造件去氧化层清洗液及其生产方法，其特征在于，清洗液包括以下重量份数原料：硫酸钠12‑18份、冰醋酸9‑15份、尿素10‑16份、焦磷酸钠12‑18份、三乙醇胺11‑17份、焦磷酸铁13‑18份、异丙醇12‑18份、硅酸钠13‑19份、稀盐酸28‑35份、氯化镁14‑19份、二氧化锰8‑13份、液体石蜡4‑9份、硝酸钠8‑15份、十二氨基磷酸12‑18份、环氧亚麻籽油12‑18份；本发明所述的一种铸造件去氧化层清洗液，以稀盐酸为基本原料，添加了异丙醇、硝酸钠、氯化镁等，具有较强的氧化性，能够洗除铸造件表面形成的碎屑、碎渣、氧化层等，使零件光亮如新。

A kind of process of surface treatment of metallic conduit

本发明涉及金属焊管加工技术领域，具体涉及一种金属管道的表面处理工艺。本发明采用系统的表面处理工艺，能够有效的将金属管道表面的锈渍、油脂等污渍去除，并且该工艺规范合理，使金属管道表面处理步骤能够有序进行，并且能够节约清洗材料，使除锈液、脱脂液、清水能够重复使用，避免浪费。

Solution for chemical etching of copper

FIELD: chemistry. SUBSTANCE: invention relates to chemical treatment of copper and can be used in manufacturing of microchips in radioelectronic, electrical engineering and galvanic production. Solution for chemical etching of copper contains orthophosphoric acid, hydroquinone, polyvinyl alcohol and water in following ratio of components, wt%: orthophosphoric acid (1.69–1.71 g/cm 3 ) 35–45, hydroquinone 0.5–2.0, 0.5–2.0 polyvinyl alcohol, water – the rest. EFFECT: invention provides stability of solution for 30 days, high quality of surface cleaning, high rate of etching in the absence of gas release. 1 cl, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 729 265 C1 (51) МПК C23F 1/18 (2006.01) C23G 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23F 1/18 (2020.02); C23G 1/02 (2020.02) (21)(22) Заявка: 2020101878, 16.01.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.08.2020 (45) Опубликовано: 05.08.2020 Бюл. № 22 2 7 2 9 2 6 5 R U (54) РАСТВОР ДЛЯ ХИМИЧЕСКОГО ТРАВЛЕНИЯ МЕДИ (57) Реферат: Изобретение относится к области химической соотношении компонентов, мас. %: 3 обработки меди и может быть использовано при ортофосфорная кислота (1,69-1,71 г/см ) 35-45, изготовлении микросхем в радиоэлектронной, гидрохинон 0,5-2,0, поливиниловый спирт 0,5-2,0, электротехнической промышленности и вода - остальное. Изобретение обеспечивает гальваническом производстве. Раствор для стабильность раствора в течение 30 суток, химического травления меди содержит высокое качество очистки поверхности, ортофосфорную кислоту, гидрохинон, повышение скорости травления при отсутствии поливиниловый спирт и воду при следующем газовыделения. 1 табл. Стр.: 1 C 1 C 1 Адрес для переписки: 198095, Санкт-Петербург, ул. Калинина, 50А, ЗАО "ЭЛЕКТРОТЯГА" (56) Список документов, цитированных в отчете о поиске: RU 2061101 C1, 27.05.1996. RU 2105085 C1, 20.02.1998. SU 1505983 A1, 07.09.1989. KR 2017011828 A, 02.02.2017. ...

Patent RU2017134350A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 134 350 A (51) МПК C23G 1/02 (2006.01) C13B 25/00 (2011.01) C11D 7/34 (2006.01) B08B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017134350, 08.04.2016 (71) Заявитель(и): АРКЕМА ФРАНС (FR) Приоритет(ы): (30) Конвенционный приоритет: 21.04.2015 FR 1553575 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2017 FR 2016/050812 (08.04.2016) (87) Публикация заявки PCT: R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПРИМЕНЕНИЕ АЛКАНСУЛЬФОНОВОЙ КИСЛОТЫ ДЛЯ ЧИСТКИ В САХАРНОЙ ПРОМЫШЛЕННОСТИ (57) Формула изобретения 1. Применение по меньшей мере одной алкансульфоновой кислоты формулы R-SO3H, где R означает насыщенную, линейную или разветвленную углеводородную цепь, содержащую от 1 до 4 атомов углерода, для очистки от твердых отложений, содержащих по меньшей мере одну соль аконитовой кислоты. 2. Применение по п. 1, причем алкансульфоновая кислота выбрана из метансульфоновой кислоты, этансульфоновой кислоты, н-пропансульфоновой кислоты, изопропансульфоновой кислоты, н-бутансульфоновой кислоты, изобутансульфоновой кислоты, втор-бутансульфоновой кислоты, трет-бутансульфоновой кислоты и смесей двух или более из них в любых пропорциях. 3. Применение по п. 1 или 2, причем алкансульфоновая кислота является метансульфоновой кислотой или этансульфоновой кислотой, предпочтительно метансульфоновой кислотой. 4. Применение по любому из предыдущих пунктов, причем указанная, по меньшей мере одна, алкансульфоновая кислота используется в форме композиции, причем количество алкансульфоновой кислоты или кислот составляет от 0,01% до 100%, более конкретно от 0,05% до 90%, в частности, от 0,5% до 75% по весу, включая границы, от полного веса указанной композиции. Стр.: 1 A 2 0 1 7 1 3 4 3 5 0 A WO 2016/170245 (27.10.2016) 2 0 1 7 1 3 4 3 5 0 (86) Заявка PCT: R U (43) Дата публикации заявки: ...

Thixotropic rust removal coating and process

Spreadable thixotropic coating composition suitable for rust removal and containing polyvinylpyrrolidone, water and a thixotropic agent which is either xanthan gum or water-soluble crosslinked interpolymer of maleic anhydride, monovinyl alkyl ether and crosslinking agent. The composition has a pH between about 1.5 and 7.0 is applied to rusty metal surfaces and allowed to dry. During drying the rust becomes incorporated into the coating which is then easily removed.

Degreasing composition useful for degreasing and/or decontaminating solid surfaces

本发明涉及固体表面脱脂和/或去污的呈液体、凝胶或泡沫体形式的脱脂组合物。这种组合物含有硝酸水溶液，它含有：至少一种由聚乙氧基化脂肪醇构成的第一种乳化非离子表面活性剂，和至少一种由环氧乙烷和环氧丙烷共聚物构成的第二种润湿非离子表面活性剂。

Oil and rust removing agent and preparation method and application thereof

本发明公开了一种除油除锈剂及其制备方法与应用，属于化学制剂技术领域。除油除锈剂，按照重要份数，包括以下组分：羟基乙叉二膦酸(HEDP)10‑30份、酒石酸0.5‑3份、焦磷酸钠0‑1份、乳酸锌0‑10份、柠檬酸钠0‑10份、草酸0‑10份。本发明的除油除锈剂中不含强酸，不受温度影响，可以常温除油除锈。并且本发明的除油除锈剂为膏状，便于运输。使用方法为取适量溶于水中即可以除油除锈，一般取3‑10份的除油除锈剂加入80‑120份水，即可以对重腐重油的工件进行除油除锈，一般超声情况下3分钟左右，常温5分钟左右，加热处理会更快。本发明的除油除锈剂使用之后，锈迹会沉积在底部，可以通过过滤二次使用，加碱中和之后可以排放，对环境无污染。

Stainless steel pickling apparatus

스테인리스강 산세장치가 개시된다. 본 장치는, 스테인리스강의 산세공정에 사용되는 불산을 포함하는 산세용액이 저장된 산세탱크; 복수의 고분자 섬유사와, 고분자 섬유사의 양단을 각각 결속하는 한쌍의 결속띠를 포함하고, 산세탱크로부터 공급된 산세용액에 포함된 슬러지를 여과하는 섬유사 여과장치; 일단이 산세탱크에 체결되고 타단이 섬유사 여과장치에 체결되어 산세탱크에 저장된 산세용액을 섬유사 여과장치에 공급하는 제1 순환관; 및 일단이 섬유사 여과장치에 체결되고 타단이 산세탱크에 체결되어 섬유사 여과장치를 통과한 산세용액을 산세탱크에 재공급하는 제2 순환관;을 포함하여 구성된다.

Paste for cleaning steel surfaces from rust

Использование: очистка поверхностей металлоконструкций из углеродистых сталей от продуктов коррозии и загр знений органического и неорганического происхождени . Сущность изобретени ; паста дл  очистки стальных поверхностей от коррозии содержит, г/: фосфорна  кислота 20-40, серна  кислота 80-160, метилцеллюлоза 200-400, полигуанидин 0,5-1,5. 3 табл.

Device and methode for coating of panel

A unit panel coating method and a device are provided to compensate corrosion resistance and mechanical property by equally applying coating powder on a unit panel through electrostatic induction. A unit panel coating device is composed of a cleaning and drying unit(100) of the predetermined standard removing foreign materials stuck on the surface of a unit panel moved by a conveyor belt(B), by acid cleaning or water cleaning and separating/drying acid or water remaining on the surface of the unit panel by the air; a heating unit(200) heating the dried unit panel by transmitting combustion heat of a burner by a blower; a coating unit(300) attaching coating powder having a polarity different to that of the unit panel, on the surface of the heated unit panel by electrostatic induction; a reheating unit(400) heating the unit panel attached with the coating powder to melt equally the coating powder stuck on the surface of the unit panel; and a loading unit(500) loading the unit panels after cooling down the unit panel on which the coating power is fused.

APPLICATION OF ALKANESULPHIC ACID FOR CLEANING IN THE SUGAR INDUSTRY

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 134 350 A (51) МПК C23G 1/02 (2006.01) C13B 25/00 (2011.01) C11D 7/34 (2006.01) B08B 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017134350, 08.04.2016 (71) Заявитель(и): АРКЕМА ФРАНС (FR) Приоритет(ы): (30) Конвенционный приоритет: 21.04.2015 FR 1553575 10 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2017 FR 2016/050812 (08.04.2016) (87) Публикация заявки PCT: R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПРИМЕНЕНИЕ АЛКАНСУЛЬФОНОВОЙ КИСЛОТЫ ДЛЯ ЧИСТКИ В САХАРНОЙ ПРОМЫШЛЕННОСТИ (57) Формула изобретения 1. Применение по меньшей мере одной алкансульфоновой кислоты формулы R-SO3H, где R означает насыщенную, линейную или разветвленную углеводородную цепь, содержащую от 1 до 4 атомов углерода, для очистки от твердых отложений, содержащих по меньшей мере одну соль аконитовой кислоты. 2. Применение по п. 1, причем алкансульфоновая кислота выбрана из метансульфоновой кислоты, этансульфоновой кислоты, н-пропансульфоновой кислоты, изопропансульфоновой кислоты, н-бутансульфоновой кислоты, изобутансульфоновой кислоты, втор-бутансульфоновой кислоты, трет-бутансульфоновой кислоты и смесей двух или более из них в любых пропорциях. 3. Применение по п. 1 или 2, причем алкансульфоновая кислота является метансульфоновой кислотой или этансульфоновой кислотой, предпочтительно метансульфоновой кислотой. 4. Применение по любому из предыдущих пунктов, причем указанная, по меньшей мере одна, алкансульфоновая кислота используется в форме композиции, причем количество алкансульфоновой кислоты или кислот составляет от 0,01% до 100%, более конкретно от 0,05% до 90%, в частности, от 0,5% до 75% по весу, включая границы, от полного веса указанной композиции. Стр.: 1 A 2 0 1 7 1 3 4 3 5 0 A WO 2016/170245 (27.10.2016) 2 0 1 7 1 3 4 3 5 0 (86) Заявка PCT: R U (43) Дата публикации заявки: ...

Solution for removing residues of fluorine-containing fluxes after welding

РАСТВОР ДЛЯ УДАЛЕНИЯ ОСТАТ-. КОВ ФТОРСОДЕРЖАЩИХ ФЛЮСОВ ПОСЛЕ СВАРКИ , включаютий азотнокислый алюминий , отличающийс  тем, -что, с целью повышени  производительности процесса удалени , работоспособности раствора и предотвращени  коррозии сварных соединений, он содержит дополнительно уксусную, борную и фосфорную кислоты и едкий натр при следующих соотношени х компонентов , г/л$ Азотнокислый алюминий50-100 Уксусна  кислота2,2-2,4 Борна  кислота2,2-2,48 Фосфорна  кислота3,9-4,0 Едкий натрie,0-2,8 SOLUTION FOR REMOVAL OF REMAINS-. COV OF FLUORINE-CONTAINING FLUXES AFTER WELDING, including aluminum nitrate, characterized in that, in order to improve the performance of the removal process, the working capacity of the solution and prevent corrosion of welded joints, it additionally contains acetic, boric and phosphoric acid and caustic soda at the following ratios of components, g / l $ Aluminum nitrate50-100 Acetic acid2,2-2,4 Boric acid2,2-2,48 Phosphoric acid3,9-4,0 Caustic soda, 0-2,8

A kind of preparation method with Sintered NdFeB magnet resistant to high temperature

本发明公开了一种具有耐高温的烧结钕铁硼磁体的制备方法，包括以下步骤：S1、制备钕铁硼薄片和辅助合金薄片，并分别粉碎再加入到球磨机中，加球磨助剂球磨，压制成坯体，烧结、回火保温、冷却即得烧结的改性钕铁硼磁体；S2、对改性钕铁硼磁体进行水洗、酸洗液清洗和乙醇清洗，再烘干；S3、将环氧树脂和丙烯酸树脂加入熔化，再加入硅烷偶联剂、二氧化硅、碳化硅粉末、陶瓷粉和绢云母粉，混合均匀即得耐高温涂料；S4、在改性钕铁硼磁体表面喷涂耐温涂料，再烘干即得具有耐高温的烧结钕铁硼磁体。本发明提出的制备方法，操作过程简单，设备需求低，制备成本低，制备的烧结钕铁硼磁体耐高温性能优异。

Composition for removal of corrosion products from parts made of aluminum alloys

FIELD: chemical treatment of surface of aluminum and aluminum-base alloys. SUBSTANCE: composition is designed for removal of corrosion products from parts made of aluminum and aluminum-base alloys. It contains, g/l: phosphoric acid 120-200, chromium oxide 40-80; silicon dioxide 250-300; zinc nitrate 20-50; trisodium phosphate 0.5-3.0; the balance (up to liter), water. Paste is universal and provides for full removal of corrosion products without affecting the base metal, inhibits development of exfoliation and intercrystalline corrosion, and forms thin chemically inert films on treated surface, and increases adhesion of paint to coatings, if any. Paste is technologically effective and suitable for treatment of vertical and inclined surfaces, and does not affect adjacent parts of treated articles. EFFECT: higher efficiency. 1 tbl, 1 ex С 9с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2157 425' С 23 С 1/12, С 23С 22/24 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99101196102, 18.01.1999 (24) Дата начала действия патента: 18.01.1999 (46) Дата публикации: 10.10.2000 (56) Ссылки: ГОСТ 9.907-83. Методы удаления продуктов коррозии после коррозионных испытаний. - М.: Издательство стандартов, 1984, с.3. ЗИ 92988 А, 21.02.196г. Ц 885353 А, 30.12.1981. УР 633109ТЪ А, 19.12.1988. ЦЗ 5256241 А, 26.10.1993. ЕР 0372915 АЛ, 13.06.1990. (98) Адрес для переписки: 107005, Москва, ул. Радио 17, ВИАМ, зам.генерального директора ВИАМ Сомовой И.В. (71) Заявитель: Всероссийский научно-исспедовательский институт авиационных материалов (72) Изобретатель: Каримова С.А., Павловская Т.Г., Тарараева Т.И., Жирнов А.Д. ‚ Подольская С.А. (73) Патентообладатель: Всероссийский научно-исследовательский институт авиационных материалов (54) СОСТАВ ДЛЯ УДАЛЕНИЯ ПРОДУКТОВ КОРРОЗИИ НА ДЕТАЛЯХ ИЗ АЛЮМИНИЕВЫХ СПЛАВОВ (57) Реферат: Изобретение относится к области химической обработки поверхности алюминия и сплавов на его основе. Состав ...

Method for ultrasonic pickling of metals

Изобретение относитс  к ультразвуковому травлению металлов в кислых растворах. Целью изобретени   вл етс  исключение растравливани  металла.и снижение наводороживани . Способ ультразвукового травлени  металлов, осуществл емый в режиме кавитации в ингибированных кислых растворах, провод т при наложении ультразвуковых колебаний с амплитудой колебательной скорости выше порога кавитации раствора , но ниже порога кавит;ации ингибитора . Ведение процесса в указанном режиме позвол ет обеспечить качественную обработку металла. 1 табл. krt СО О СЛ

Sticking defect reduction method of cold rolling

본 발명은 열간압연강판을 공급받아 냉연강판을 제조하는 제조공정에 관한 것으로, 보다 상세하게는 상자 소둔 열처리 과정에서 발생하는 흡착으로 인한 불량 발생을 감소시키기 위한 냉간압연강판 제조공법에 있어서 산세압연공정에서의 제품의 표면조도 제어를 통한 흡착 발생 저감 방법에 관한 것이다. The present invention relates to a manufacturing process of manufacturing a cold rolled steel sheet by receiving a hot rolled steel sheet, and more particularly, a pickling rolling process in a cold rolled steel sheet manufacturing method for reducing defects caused by adsorption generated in a box annealing heat treatment process. The present invention relates to a method for reducing adsorption occurrence by controlling the surface roughness of a product in the present invention. 본 발명은 열연강판 코일을 공급받아, 산세압연공정, 전해청정공정, 상자소둔열처리공정, 조질압연공정, 정정공정을 순차적으로 거쳐 최종생산제품의 두께가 0.5~2.0mm 범위의 박판 냉간압연강판을 제조하는 방법에 있어서, 상자소둔열처리공정에서 발생하는 스트립간의 흡착현상을 감소시키기 위하여, 산세압연공정에서 압연롤의 표면조도를 상향하여 산세압연공정을 거친 스트립의 표면조도(Ra)가 1.15~1.40㎛ 되도록 하는 것을 특징으로 하는 스트립간의 흡착 발생 저감 방법을 제공한다. The present invention is supplied with a hot rolled steel coil, and subjected to a pickling rolling process, an electrolytic cleaning process, a box annealing heat treatment process, a temper rolling process, a correction process in sequence to produce a thin cold rolled steel sheet of 0.5 ~ 2.0mm thickness of the final product In the manufacturing method, in order to reduce the adsorption phenomenon between strips generated in the box annealing heat treatment process, the surface roughness (Ra) of the strip subjected to the pickling rolling process by increasing the surface roughness of the rolling roll in the pickling rolling process is 1.15 to 1.40. Provided is a method for reducing the occurrence of adsorption between strips, characterized in that to be 占 퐉. 냉간압연강판, 흡착, 표면조도 Cold Rolled Steel Sheet, Adsorption, Surface Roughness

Stripper for special steel

Low surface tension sulfuric acid composition

반도체 제조 공정등에서 사용되고 있는 황산 또는 황산 -과 산화수소의 세정액이, 일반식 R 1 SO 2 NR 2 C 2 H 4 OA [1] (식 중에서 R 1 은 플루오로 알킬기, R 2 는 H 또는 저급 알킬기, A는 H 또는 SO 3 H를 나타냄)으로된 게면 활성제를 첨가하여 표면 장력을 내림으로써 젖는 성질을 좋게 하고, 세정효과를 높임. Sulfuric acid or sulfuric acid used in a semiconductor manufacturing process or the cleaning solution of hydrogen oxide is a general formula R 1 SO 2 NR 2 C 2 H 4 OA [1] (wherein R 1 is a fluoroalkyl group, R 2 is H or a lower alkyl group) , A represents H or SO 3 H) by adding a surface active agent to lower the surface tension to improve the wettability and enhance the cleaning effect.

Tubular electric heating element tumbling technology capable of improving corrosion resistance of tubular electric heating element

本发明涉及一种电热管滚光处理工艺，具有以下步骤：将电热管先放入65℃的白钢水溶液中浸泡12min，再放入浓硝酸溶液中浸泡5s，然后冲洗，对表面进行清理；B．对经过滚光前处理的电热管进行滚光处理，接着将滚光后的电热管放入80℃、浓度为5%的稀柠檬酸溶液中浸泡5min，然后冲洗；C．对电热管进行钝化处理并甩干；所述钝化处理时，先将电热管放入稀硝酸溶液中浸泡10s，再放入缓蚀溶液中浸泡10s，然后过滤清洗；所述缓蚀溶液是由碘化钾、苯并三氮唑与水按照0.1∶60∶100的质量比配置而成的。本发明的工艺可以有效清理电热管表面的焊垢、斑点、污迹和生锈，使得电热管镀覆的质量有所提升。

A kind of preparation method of boiler tubing abluent

本发明涉及一种锅炉管道清洗剂的制备方法。步骤：将氨基磺酸2～5份、氢氟酸0.5～1份、盐酸4～7份、乌洛托品2～3份、邻二甲苯硫脲1～2份、氯化铜0.5～1份、酒石酸氢钾0.5～1份、聚醚0.3～0.5份、亚硫酸钠0.3～0.5份、五水偏硅酸钠0.3～0.5份、葡萄糖酸钠0.5～1份、氢氧化四甲基铵0.2～0.4份、甲基环氧氯丙烷0.5～1份、钼酸钠0.3～0.5份、三异丙醇胺0.1～0.3份、辛基苯烷基聚氧乙烯磷酸酯0.3～0.6份、乙烯基双硬脂酰胺0.5～1份、丁炔二醇0.5～1份、表面活性剂1～2份、水70～100份混合均匀，即可。清洗剂对于锅炉管道具有较好的清洗效果，而且清洗速度快。

Metal treatment method

Изобретение относится к способу обработки поверхности металла содержащим азотную кислоту раствором, в который добавляют перекись водорода для уменьшения образования газообразных азотистых соединений. По меньшей мере часть перекиси водорода подают посредством нанесения ее в виде водного раствора разбрызгиванием или смачиванием непосредственно на металл через одно или несколько отдельных сопел. 3 з.п. ф-лы, 1 ил. УЗУЕСТС ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2131 484 ' 13) СЛ ОМК © 23Е 1/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98108593/02, 30.04.1998 (30) Приоритет: 05.05.1997 ЕР 97850075.9 (46) Дата публикации: 10.06.1999 (56) Ссылки: ЦЗ 3945865 А, 23.03.76. ЕР 0053719 АЛ, 16.06.82. 5Ц 113З7РЪ А, 10.07.58. СВ 1145891 А, 19.03.69. ОЕ 2364162 В.2, 23.12.76. (98) Адрес для переписки: 129010, Москва, ул.Б.Спасская 25, стр.3, ООО "Союзпатент", Патентному поверенному Начальнику отдела подачи заявок Егоровой Г.Б. (71) Заявитель: Акцо Нобель Н.В. (МГ) (72) Изобретатель: Трои Берглинд (3Е), Арне Фрестад ($Е) (73) Патентообладатель: Акцо Нобель Н.В. (МЕ) С1 (54) СПОСОБ ОБРАБОТКИ МЕТАЛЛА (57) Реферат: Изобретение относится к способу обработки поверхности металла содержащим азотную кислоту раствором, в который добавляют перекись водорода для уменьшения образования газообразных азотистых соединений. По меньшей мере часть перекиси водорода подают посредством нанесения ее в виде водного раствора разбрызгиванием или смачиванием непосредственно на металл через одно или несколько отдельных сопел. 3 з.п. ф-лы, 1 ил. 2131484 КО УЗУЕСТС ПЧ ГЭ (19) КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ 12) АВЗТКАСТ ОЕ 1МУЕМТОМ ВИ” 2131 484 ' (51) 1пЕ. С1.6 13) Сл С 23Е 1/00 (21), (22) АррИсаНоп: 98108593102, 30.04.1998 (30) Рнощу: 05.05.1997 ЕР 97850075.9 (46) Рае ог рчбИсаНоп: 10.06.1999 (98) Май адагез$$: 129010, МозКуа, ш.В.ЗраззКа]а 25, $г.3З, ООО "Заитрает", Раептоти роуегеппоти МаспаГпкКи ое!а родас!! ха]ауок Едогоуо] С.В. (71) ...

Environment-friendly metal rust removing solution

本发明公开了一种环保型金属除锈液，各组分按重量份计，水80 份、秸秆灰40-60 份、柠檬酸20-30 份、醋酸2-5 份。本发明所提供的环保型金属除锈液，将具有多孔结构的秸秆灰应用于除锈液，在柠檬酸和醋酸的共同作用下，对金属具有良好的除锈功能，尤其对钢材类金属的除锈效果极佳，同时，对金属的机械性能损伤小，操作过程安全环保。

Improvement of pickling agent

(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。

Multi-function descaling agent

本发明提供一种多功能除垢剂，可广泛用于电 子、电气、机械工业和文物复新与鉴别及日常生活等 许多领域。其优点是：功能多，见效快，效果好，无残 毒，腐蚀性小且生产容易，使用和携带安全方便。其 特征是：由硝酸与水组成。

Method of pickling for chemical conversion treatment of magnesium alloy material

The present invention relates to a pickling method for chemical conversion treatment of magnesium alloy material containing tin, which may prevent a surface film of a material from being deteriorated due to nitric acid in a pickling process of a chemical conversion treatment respective to magnesium alloy material containing tin. The pickling method for the chemical conversion treatment of magnesium alloy material is a pre-treatment process of the chemical conversion treatment to form an oxide film or a thin film of mineral salt on the surface of the magnesium alloy material, wherein magnesium alloy material is immersed into pickling liquid. According to the pickling method, the pickling liquid is formed by mixing nitric acid (HNO_3) liquid, phosphoric acid (H_3PO_4) liquid, and de-ionized water (DI-Water); and while maintaining the pickling liquid at room temperature, the magnesium alloy material is immersed into the pickling liquid.

Method for removing titanium film and titanium oxide

(57)【要約】 【課題】 ハニカム成形用口金の母材を侵食させること なく、溶解したチタンイオンの母材への再析出を防止し つつ、少量の剥離液で大量のチタン系膜を除去すること ができるとともに、母材に付着／析出したチタン酸化物 を除去することができるチタン系膜及びチタン酸化物の 除去方法を提供する。 【解決手段】 母材の表面にチタン系膜をコーティング したハニカム成形用口金からチタン系膜を除去する方 法、及び母材の表面にチタン酸化物が付着／析出したハ ニカム成形用口金からチタン酸化物を除去する方法であ る。酸と過酸化水素を混合した剥離液を用いる。

Process of pickling of metal products

FIELD: pickling of articles from metals and alloys carrying metal of titanium group. SUBSTANCE: pickling bath contains hydrofluoric, sulfuric, hydrochloric, phosphoric or formic acid. Oxygen, ozone, hydrogen peroxide, carbamide peroxide, per acid or persalt is injected as oxidizing agent into it. Article to be pickled is immersed. Peroxide compound carrying metal in highest degree of oxidation is formed as result of interaction of metal with oxidizing agent. This compound is utilized as pickling agent. Formation of compound is controlled by measurement of redox potential and its adjustment in interval from potential of formation of peroxide compound to value below potential of passivation of metal. Vanadium, zirconium, titanium, tantalum or uranium are elements of titanium group. EFFECT: raised pickling kinetics, high quality of surface of metal articles. 7 cl, 1 tbl 0958 91сС ПЫ с» (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 168 560 (6) МК” С 23ЗЕ 1/26 (13) С2 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4895068/12, 25.07.1990 (24) Дата начала действия патента: 25.07.1990 (30) Приоритет: 26.07.1989 ЕК 8910093 (46) Дата публикации: 10.06.2001 (56) Ссылки: СВ 1455464 А, 10.11.1976. ЕР 0259533 АЛ, 16.03.1988. (85) Дата перевода заявки РСТ на национальную фазу: 25.03.1991 (86) Заявка РСТ: ЕК 90/00564 (25.07.1990) (87) Публикация РСТ: М/О 91/02109 (21.02.1991) (98) Адрес для переписки: 129010, Москва, ул. Большая Спасская 25, стр.3, ООО "Городисский и Партнеры", Лебедевой Н.Г. (71) Заявитель: ЮЖИН С.А. (ЕВ) (72) Изобретатель: Доминик ЭНРИЕ (ЕК), Дидье ПОЛЬ (ЕК), Лоран ПРОС (ЕК) (73) Патентообладатель: ЮЖИН С.А. (ЕК) (74) Патентный поверенный: Лебедева Наталья Георгиевна (54) СПОСОБ ДЕКАПИРОВКИ МЕТАЛЛИЧЕСКИХ ПРОДУКТОВ (57) Изобретение относится к декапированию изделий из металлов или — сплавов, содержащих металл группы титана. Ванна для декапировки содержит фтористо-водородную, серную, соляную, фосфорную или муравьиную ...

A kind of Environment-friendlyrust rust inhibitor

本发明公开了一种环保型除锈剂，是由以下重量份数的组分组成：甲酸25‑30份，磷酸三钠5‑12份，盐酸3‑8份，糊精0.8‑1.2份，尿素10‑15份，十二烷基苯磺酸钠0.1‑0.2份，去离子水50‑80份，活性白土2‑7份。本发明提供的环保型除锈剂绿色无毒，环保节能，对环境无污染，除锈效率高，能快速清除油污、锈迹等，而且对金属基本不产生过腐蚀和氢脆现象。

Composition for treating defective films containing tanning substances

Изобретение относитс  к растворам дл  обработки дефектных конверсионных пленок, включающих дубильные вещества, преимущественно кон- версионньк пленок на цинке. Цель изобретени  - восстановление качественного вида поверхности пленок. Состав , включающий д -оксипропионовую кислоту 8-12 г/л и продукт конденсации сланцевых суммарных фенолов с формальдегвдом и последующего w -сульфировани  (синтетический олигомер-12) 0,5-2,0 г/л, обеспечивает восстановление качественного внешнего вида поверхности дефектных цинк-конверсионных пленок, не имеющих коррозионных разрушений. I табл.

Patent JPS526853B2

Monitoring apparatus or preventing surface crack and fracture of strip in picking line

본 발명은 산세 압연 공정에 있어서, 스트립의 횡류에 의한 대형 판 파단이나 스트립의 꼬임에 의한 표면 결합의 발생을 미리 예측하여 경고함으로써, 운전자가 대처할 수 있으며 적절한 시점에서 압연 공정을 자동 정지시켜 대형사고 발생을 예방할 수 있는 산세 압연 공정의 표면 결함 및 판 파단 방지를 위한 감시 장치에 관한 것으로서, 산세 압연 공정에서 각 TCM 스탠드 사이의 구간별로 스트립의 양 사이드 장력 편차를 측정하여 표시하고, 또한 TCM 스탠드로 입력되는 산세 압연될 스트립의 두께 변화를 측정하여 표시함으로써, 운영자가 스탠드의 레벨 변화를 확인할 수 있도록 하며, 더하여 상기 장력 편차가 기준 값 이상인 경우 꼬임 결함 혹은 판 파단의 발생이 가능한 것으로 예측하여, 운영자에게 경고함으로써, 운영자가 미리 대책을 세울 수 있도록 하며, 최악의 경우, 운영자가 적절한 조치를 취하지 못하거나 조절할 수 있는 급격한 두께 변화가 나타난 경우 산세 압연의 정지를 자동으로 결정함으로써, 대형사고 및 품질 저하를 미리 방지할 수 있는 것이다. 산세 압연, 장력 편차, 감시, 두께 변화, 꼬임 결함, 판 파단