Method for preparing environment friendly catalyst

Abstract

The invention unfurls a way to produce a kind of catalyst of friendly environment. The way uses 2#soil--SA01 of feature changing as the carry ZnCl2, through dipping, evaporating to make ZnCl2 / soil--SA01 solid sample, at 70-80 degC, dry the sample in vacuum for 3--4h. In the protection of N2, fire at 250-300 degC for 3--4h cool the N2 to the room temperature, the ZnCl2 / soil--SA01 is made. The catalyst of the invention costs little, can be recovered. It achieves the material proper usage. The production of the catalyst belongs to the green production process.

Description

technical field [0001] The invention relates to a method for preparing an environment-friendly catalyst, in particular to a method for preparing the catalyst by a wet method. Background technique [0002] Friedle-Crafts alkylation generally uses hydrofluoric acid, sulfuric acid, aluminum trichloride, freshly prepared aluminum amalgam, etc. as catalysts. However, these catalysts seriously corrode the equipment and often bring about the "three wastes" problem. The above-mentioned problems can be avoided by using a solid acid instead of a liquid acid, and using a carrier reagent and a molecular sieve catalyst. Most of the catalyst carriers used at home and abroad are synthetic molecular sieves. The prepared catalysts have high cost, unsatisfactory service life, cannot be reused, and are expensive. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a preparation method of an environment-friendly catalyst. This prepar...

AI Technical Summary

Problems solved by technology

Most of the catalyst carriers used at home and abroad are synthetic molecular sieves. The cost of the prepared catalyst is high, the service life is not ideal, it cannot be reused, and the price is relatively expensive.

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