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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 15. Отображено 15.
28-01-2009 дата публикации

Method for preparing polyetherketone from ion liquid supported catalyst

Номер: CN0101353423A
Принадлежит:

The invention relates to a method for preparing polyether-ketone by an ionic liquid supported acetyl acetone metal catalyst. The method of the invention comprises the following steps: carbon dioxide and alkenyl ether are taken as raw materials and an ionic liquid supported acetyl acetone metal coordination compound is taken as a catalyst to generate the polyether-ketone by copolymerization for 1-48 hours under the pressure of 0.1-5.5 MPa and the temperature of 25-130 DEG C. The catalyst used by the method of the invention has very good thermal stability, being stable to air and water, and easy operation as well as higher catalytic activity. The prepared polyether-ketone of the invention is characterized by higher molecular weight and good selectivity, etc.

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07-01-2015 дата публикации

Ionic liquids capable of adjusting phase behavior by using CO2, and preparation method and application thereof

Номер: CN104262175A
Принадлежит:

The invention discloses ionic liquids capable of adjusting phase behavior by using CO2, and a preparation method and application thereof. The technical scheme is as follows: the ionic liquids capable of adjusting phase behavior by using CO2 comprise alkyl alcamine cations and nitrogen heterocycle anions, wherein the alkyl alcamine cations are disclosed in the specification, and R is C1-C20 alkyl group; and the nitrogen heterocycle anions are disclosed in the specification. The invention also discloses a preparation method and application of the ionic liquids capable of regulating phase behavior by using CO2. The CO2 is introduced into or removed from the ionic liquid-water adjustable system formed by the ionic liquids and water, so that the hydrophilicity and hydrophobicity of the ionic liquids can have corresponding reversible change along with the demands of the reaction and separation process, thereby implementing the reaction-separation coupling process and the cyclic utilization of ...

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25-03-2015 дата публикации

Method for trapping sulfur dioxide by using pyridyl functionalized ionic liquid

Номер: CN104437001A
Принадлежит:

The invention discloses a method for trapping sulfur dioxide by using pyridyl functionalized ionic liquid. According to the pyridyl functionalized ionic liquid disclosed by the invention, pyridyl is introduced to anions of a functionalized ionic liquid; the absorption amount of the sulfur dioxide is increased by using the action of anion-enhanced pyridyl and sulfur dioxide; and the desorption properties of the ionic liquid are improved by using the electron absorption property of the pyridyl on the anions, and thus the efficient reversible absorption of the sulfur dioxide is achieved.

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25-03-2015 дата публикации

Method for capturing carbon dioxide by use of ionic liquid/ether-based polymer compounded system

Номер: CN104437003A
Принадлежит:

The invention discloses a method for capturing carbon dioxide by use of an ionic liquid/ether-based polymer compounded system. The ionic liquid/ether-based polymer compounded system adopted by the invention is characterized in that the amide group is introduced into the ionic liquid through proton transferring, the capturing amount of the carbon dioxide gas is increased under the actions of the negative charge enhanced amide group and the carbon dioxide gas, the desorption performance of the ionic liquid is improved by use of the electron-withdrawing property of a ketone group on the anion, an involatile polymer such as polyethylene glycol or polyether is utilized as a diluent, the reaction rate of the ionic liquid and the carbon dioxide is accelerated, and the carbon dioxide gas can be captured reversely in a high-efficiency and high-capacity manner.

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10-11-2010 дата публикации

Method for preparing polyetherketone from ion liquid supported catalyst

Номер: CN0101353423B
Принадлежит:

The invention relates to a method for preparing polyether-ketone by an ionic liquid supported acetyl acetone metal catalyst. The method of the invention comprises the following steps: carbon dioxide and alkenyl ether are taken as raw materials and an ionic liquid supported acetyl acetone metal coordination compound is taken as a catalyst to generate the polyether-ketone by copolymerization for 1-48 hours under the pressure of 0.1-5.5 MPa and the temperature of 25-130 DEG C. The catalyst used by the method of the invention has very good thermal stability, being stable to air and water, and easy operation as well as higher catalytic activity. The prepared polyether-ketone of the invention is characterized by higher molecular weight and good selectivity, etc.

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25-04-2023 дата публикации

Method for absorbing carbon monoxide by using ionic liquid and dihydric phenol composite system

Номер: CN115999322A
Принадлежит:

The invention discloses a method for absorbing carbon monoxide by a composite system of ionic liquid and dihydric phenol. According to the method, an ionic liquid composite system composed of ionic liquid containing cuprous functional anions and a dihydric phenol solvent is adopted as an absorbent, the gas absorption pressure is 10-800 kPa, the absorption temperature is 10-100 DEG C, and the absorption time is 0.5-10 h; the desorption process of the composite system for absorbing carbon monoxide comprises the following steps: directly connecting an absorption tank of the composite system for absorbing saturated carbon monoxide with a vacuum pump, vacuumizing the absorbent system for 0.5-2 hours, and keeping the desorption temperature at 50-120 DEG C in the desorption process. According to the method, the interaction between cuprous and carbon monoxide is regulated and controlled by utilizing phenolic hydroxyl groups to assist cuprous anions, so that the carbon monoxide absorption and separation ...

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04-04-2023 дата публикации

High-temperature semiconductor catalyst and application thereof

Номер: CN115888794A
Принадлежит:

The invention discloses a high-temperature semiconductor catalyst which can keep excellent CO2 photo-reduction performance at high temperature. The main purpose of the catalyst is to solve the problem that the stability of a classical photocatalyst is limited by temperature, and more effectively improve the conversion efficiency of carbon dioxide and the utilization rate of solar energy while a semiconductor catalyst capable of resisting high temperature is needed in the photo-thermal catalysis process. Carbon dioxide can be converted into more high-value alkane products, and the method has a relatively strong practical application prospect.

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11-03-2015 дата публикации

Method of utilizing nitryl-containing ionic liquid to absorb sulfur dioxide gas

Номер: CN104399364A
Принадлежит:

The invention discloses a method of utilizing a nitryl-containing ionic liquid to absorb sulfur dioxide gas. The nitryl-containing ionic liquid adopted in the method disclosed by the invention is prepared by introducing nitro to anions of the functionalized ionic liquid. According to the method, the anion-strengthened nitro is utilized to react with sulfur dioxide, so as to increase the absorptive amount of sulfur dioxide, and the electron withdrawing property of nitro on the anions is utilized to improve the desorption property of the ionic liquid, so as to realize efficient reversible absorption of sulfur dioxide.

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24-12-2014 дата публикации

PEG (polyethylene glycol) functionalized biimidazole cation temperature control ion liquid as well as preparation method and application thereof

Номер: CN104230813A
Принадлежит:

The invention discloses PEG (polyethylene glycol) functionalized biimidazole cation temperature control ion liquid as well as a preparation method and application thereof. According to the key points of the technical scheme, the PEG functionalized biimidazole cation temperature control ion liquid has a structure described in the specification, and in the structure, n is 7, 11, 15 or 21. The invention further discloses a preparation method of the PEG functionalized biimidazole cation temperature control ion liquid and application of the PEG functionalized biimidazole cation temperature control ion liquid to extraction and separation of amino acid or protein. The PEG functionalized biimidazole cation temperature control ion liquid can form a two-liquid system with an LCST (lower critical solution temperature) phase behavior together with water, and can form a two-liquid system with a UCST (upper critical solution temperature) phase behavior together with an alcohol compound; a proper amount ...

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24-08-2011 дата публикации

Method for capturing sulfur dioxide by employing imidazolyl ionic liquid

Номер: CN0102160963A
Принадлежит:

The invention relates to a method for removing sulfur dioxide from flue gas by employing high-stability alkaline ionic liquid, in particular to a method for absorbing sulfur dioxide gas by taking weakly alkaline quaternary phosphorus ionic liquid as an absorbent. The absorption pressure is between 0.0001 and 0.1MPa, the absorption temperature is between 20 and 80 DEG C, the absorption time is 0.1to 2 hours, the desorption temperature is between 60 and 120 DEG C, and the desorption time is 0.1 to 3 hours. The technical scheme has the advantages that: the ionic liquid is high in stability, high in absorptive capacity and easy to desorb, and the method has industrial application potential.

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23-09-2015 дата публикации

Method for catching sulfur dioxide by adopting halogenated carboxylic acid ion liquid

Номер: CN104923036A
Принадлежит:

The invention discloses a method for catching sulfur dioxide by adopting a halogenated carboxylic acid ion liquid. According to the halogenated carboxylic acid ion liquid, halogen is introduced onto carboxylic acid negative ions of a functionalized ionic liquid, the absorbing capacity of sulfur dioxide is improved by utilization of the action of halogen reinforced onto the negative ions and sulfur dioxide, and the electron absorption property of the halogen on the negative ions is utilized to improve the desorption property of carboxylic acid ion liquid, so that efficient reversible absorption of the sulfur dioxide can be realized.

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02-06-2023 дата публикации

Porous carbon-doped silicon-based composite material for VOCs adsorption and preparation method and application of porous carbon-doped silicon-based composite material

Номер: CN116196885A
Принадлежит:

The invention discloses a porous carbon-doped silicon-based composite material for VOCs adsorption and a preparation method and application thereof, the silicon-based composite material has high silicon content and low porous carbon content, and the doped porous carbon is uniformly distributed in silica gel channels. The preparation method of the material comprises the following steps: dissolving a carbon-based organic precursor, introducing the carbon-based organic precursor into silica gel materials with different particle sizes through equivalent-volume impregnation, drying, and carrying out microwave carbonization synthesis. The silicon-based composite material has stronger hydrophobicity and higher micropore proportion compared with initial silica gel, and has better thermal stability compared with a common activated carbon material. Based on the advantages, the silicon-based composite material can adsorb a large amount of non-methane hydrocarbons, oxygen-containing organic compounds ...

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21-04-2023 дата публикации

Method for improving carbon monoxide absorption and separation capacity by using halogen bond action

Номер: CN115990393A
Принадлежит:

The invention discloses a method for improving carbon monoxide absorption and separation capacity by using halogen bond action. An ionic liquid composite system composed of cations containing halogen structures, anions containing cuprous structures and alcohol compounds is used as an absorbent and used for absorbing carbon monoxide, and in the absorption process, the gas absorption pressure is 10 kPa to 500 kPa, the absorption temperature is 20 DEG C to 80 DEG C, and the absorption time is 1 h to 5 h; in the desorption process of the ionic liquid composite system absorbing saturated carbon monoxide, the composite absorbent system after absorption in the absorption tank is directly vacuumized, the desorption temperature is 80-100 DEG C, and the desorption time is 0.5-1 h. Through the design of an ionic liquid composite system, the interaction between anions and cations is regulated, and the reaction between cuprous sites and carbon monoxide is regulated by utilizing the halogen bond action ...

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24-12-2014 дата публикации

Anion functional ion liquid containing acylamino as well as preparation method and application thereof

Номер: CN104226081A
Принадлежит:

The invention discloses anion functional ion liquid containing acylamino as well as a preparation method and application thereof. According to the technical scheme, the anion functional ion liquid containing acylamino is characterized by taking a compound containing single acylamino or a compound containing double acylamino as anions and taking tetra-alkyl phosphine as cations. The invention further discloses the preparation method of the anion functional ion liquid and the application of the anion functional ion liquid to a sulfur dioxide gas capturing agent. According to the application, acylamino is introduced into the anions of the functional ion liquid and the capturing amount of sulfur dioxide gas is improved under the interaction of anion enhanced acylamino and the sulfur dioxide gas, and the desorption performance of the ion liquid is improved by virtue of an electron-withdrawing property of acylamino on the anions, so that the efficient and reversible capturing of the sulfur dioxide ...

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18-04-2023 дата публикации

Alkali pyridinol ionic liquid system method for capturing carbon dioxide

Номер: CN115970445A
Принадлежит:

The invention relates to an alkali pyridinol ionic liquid system method for capturing carbon dioxide, which comprises the following steps: mixing a proton donor and a proton acceptor according to a certain proportion to obtain an alkali pyridinol ionic liquid system; carbon dioxide is absorbed under the pressure of 0.0001-0.1 MPa, the absorption temperature ranges from 10 DEG C to 100 DEG C, and the absorption time ranges from 0.5 h to 15 h; and carrying out desorption at the temperature of 40-160 DEG C, wherein the desorption time is 0.5-5 hours. The method has the beneficial effects that the ionic liquid is low in viscosity and good in stability, and volatilization and loss of a solvent in the absorption and desorption process are greatly reduced; the absorption capacity under normal pressure can reach 1.27 mol mol <-1 >, and the absorption capacity is obviously improved compared with the prior art.

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