Preparation method of molecular sieve catalyst for formaldehyde removal
A catalyst and molecular sieve technology, applied in the field of formaldehyde catalyst preparation, can solve the problems of expensive equipment, high technical requirements, secondary pollution, etc., and achieve high removal effect and simple overall process
Inactive Publication Date: 2020-04-07
NINGBO FOTILE KITCHEN WARE CO LTD
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Abstract
The invention discloses a preparation method of a molecular sieve catalyst for formaldehyde removal. The method is characterized by comprising the following steps of: dissolving sodium metaaluminate in deionized water, and carrying out primary stirring until the sodium metaaluminate is completely dissolved; adding a TPAOH template agent and performing secondary stirring; adding TEOS and performingtertiary stirring; slowly adding a precious metal salt solution into a mixed solution obtained in the previous step; after quaternary stirring, conducting reaction crystallization in a closed reaction kettle under a heating condition, and separating solids; cleaning the solids with deionized water, and carrying out roasting to remove the template agent; and then carrying out heat treatment in a hydrogen atmosphere so as to obtain the catalyst. According to the invention, precious metal is doped on the molecular sieve, and the normal-temperature catalytic material for formaldehyde removal andwith the highly dispersed precious metal and excellent activity is formed in one step; and the whole process of the method is simpler, and enlarged application is facilitated.
Application Domain
Molecular sieve catalystsDispersed particle separation
Technology Topic
Molecular sievePrecious metal +8
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- Experimental program(3)
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