Method for preparing carbon dioxide capture material with coal gangue and polyethylene

A polyethyleneimine, carbon dioxide technology, applied in chemical instruments and methods, separation methods, inorganic chemistry and other directions, can solve problems such as insufficient strength, difficulty in effective separation, limitations, etc., and achieve good heat resistance, good capture effect, and cost. low effect
CN101804332AInactive Publication Date: 2010-08-18SHANXI LUAN MINING GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANXI LUAN MINING GRP
Publication Date
2010-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing a carbon dioxide capture material by utilizing the technology that coal gangue is taken as a raw material to develop a new material, and loading polyethylene, which comprises the following steps that: the coal gangue is crushed and roasted at high temperature; acid is added and fully stirred; aluminum oxide in the coal gangue is reacted with hydrochloric acid to obtain a product solution containing aluminum chloride, silica is separated from aluminum ions by filtering to obtain an aluminum chloride filtrate, and the filtrate is further reacted to obtain polyaluminium chloride; residual solids obtained after filter contain the silica, and concentrated alkali is heated to prepare a silicate solution; and the polyethylene and the acid are used for deposition treatment, so that the polyethylene is deposited on silica particles to obtain mesoporous particles. The material has high cold compressive strength and room-temperature capture capability, and can be heated to 105 DEG C to release carbon dioxide; and then a composite material can continue to capture carbon dioxide to be repeatedly used.
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Description

technical field

[0001] The invention relates to a method for using coal gangue as a raw material to develop a new material technology and loading polyethyleneimine to prepare a carbon dioxide capture material. Background technique

[0002] According to scientific observation and research, it is found that the increase of carbon dioxide can cause the temperature on the earth to become higher and higher, and this increase in temperature will bring many serious consequences, especially the impact on the earth's climate. Elevate etc. Industrial production is the main source of carbon dioxide emissions. Although people have realized the harm of carbon dioxide, it is difficult to control carbon emissions by inhibiting industrial development. In order to better eliminate carbon dioxide, scientists and technicians are working towards the development of carbon capture and storage technologies. .

[0003] CO 2 At present, there are mainly two methods of capture technology, chemica...

Claims

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