Method for preparing binary composite catalytic cracking molecular sieve precursor from coal gangue
A technology of catalytic cracking and binary compounding, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high manufacturing costs and achieve strong market competitiveness
Active Publication Date: 2021-04-02
山西晋坤矿产品股份有限公司
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Problems solved by technology
This process is relatively long, and raw materials such as activated alumina and activated silicon are needed, and the manufacturing cost is high.
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Embodiment Construction
[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.
[0018] A method for preparing a binary compound catalytic cracking molecular sieve precursor by using coal gangue. The coal gangue is ground and calcined to generate spinel-type / mullite-type kaolin powder, which is re-formed into a slurry, and uncalcined After the coal gangue slurry is mixed in proportion, a binder is added, microspheres with a certain particle size are formed by spray drying, and then calc...
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Abstract
The invention belongs to the technical field of preparation of catalysts from coal gangue, and provides a method for preparing a binary composite catalytic cracking molecular sieve precursor from coalgangue. Coal gangue is crushed, ground and calcined to generate spinel / mullite kaolin powder, the spinel / mullite kaolin powder is prepared into slurry again, the slurry is mixed with uncalcined coalgangue pulp in proportion, a binder is added, microspheres with a certain particle size are generated through spray drying, and then low-temperature calcination is performed to prepare a catalytic cracking catalyst precursor. Coal gangue is used as a raw material, and the binary composite active catalytic cracking catalyst precursor with high additional value is produced by improving a process. The product has high market competitiveness. On one hand, the requirements in the field of catalysts can be met, meanwhile, a new profit growth point is opened up for our company, waste is truly turnedinto wealth, energy conservation and consumption reduction are achieved, and high-added-value comprehensive utilization of the waste coal gangue reaches a new level.
Description
technical field [0001] The invention belongs to the technical field of preparing catalysts from coal gangue, and in particular relates to a method for preparing a binary composite catalytic cracking molecular sieve precursor by using coal gangue, wherein the gangue is hard kaolinite. Background technique [0002] Kaolin is a non-metallic mineral powder material with unique properties and continuously expanding application range. It is widely used in papermaking, rubber, plastics, cables, chemicals, paints and coatings and other fields. plays an important role in. Coal gangue is a kind of coal-based kaolin. Its characteristic is that the raw ore itself is dark brown, and its whiteness is higher after calcination. and refractory materials. Different processing techniques can endow products with different application functions, and the object of the present invention is to use coal gangue to prepare molecular sieve precursor binary composite matrix technology. [0003] The e...
Claims
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IPC IPC(8): B01J21/12B01J29/06
CPCB01J21/12B01J29/06
Inventor 曹舒雯李亚军尹育华李文杰刘继文任向上解金花沙叶李璐瑶尹睿麟
Owner 山西晋坤矿产品股份有限公司