Preparation method of catalyst for converting carbon tetrachloride into chloroform

Abstract

The invention discloses a preparation method of a catalyst for converting carbon tetrachloride into chloroform. The formula comprises the following components: chloroplatinic acid, dichloromethane, aluminum oxide, potassium chloride, acetic acid, oxalic acid, deionized water, a manganese monomer and an adsorbent. The catalyst is prepared from the following components in percentage by mass: 15 to 25 percent of chloroplatinic acid, 20 to 35 percent of dichloromethane, 15 to 25 percent of aluminum oxide, 10 to 20 percent of potassium chloride, 2 to 4 percent of acetic acid, 10 to 20 percent of oxalic acid, 1 to 3 percent of deionized water, 6 to 11 percent of manganese monomer and 0.5 to 1 percent of the adsorbent. The method is safe and reliable, aluminum oxide and chloroplatinic acid are used as carriers to prepare the catalyst for converting carbon tetrachloride into chloroform. A traditional catalytic hydrogenation reaction mode is abandoned; clipping and dipping of the adsorbent aremore beneficial to carrier processing, dichloromethane is added as a diluent, the catalytic efficiency of the carbon tetrachloride-to-chloroform catalyst is further improved, carbon tetrachloride-to-chloroform catalysis is facilitated, the catalyst is high in activity and conversion rate, the process is simple and rigorous, the raw materials are cheap and low in cost, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of carbon tetrachloride to chloroform, in particular to a preparation method of a carbon tetrachloride to chloroform catalyst. Background technique [0002] Chloroform, also known as chloroform, is a colorless and transparent liquid with a special smell, sweet taste, high refractive index, non-combustible, heavy, volatile, and the pure product is sensitive to light. When exposed to light, it will react with oxygen in the air and gradually decompose To generate highly toxic phosgene hydrogen chloride, carbon tetrachloride is generally used for the conversion of chloroform to chloroform. The conversion of carbon tetrachloride to chloroform requires a catalyst for catalytic reaction. The traditional carbon tetrachloride conversion to chloroform catalysis uses hydrogenation reaction to reduce The catalytic efficiency of carbon-to-chloroform catalyst is not conducive to the catalysis of carbon tetrachloride to ch...

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Problems solved by technology

[0002] Chloroform, also known as chloroform, is a colorless and transparent liquid with a special smell, sweet taste, high refractive index, non-combustible, heavy, volatile, and the pure product is sensitive to light. When exposed to light, it will react with oxygen in the air and gradually decompose To generate highly toxic phosgene hydrogen chloride, carbon tetrachloride is generally used for the conversion of chloroform to chloroform. The conversion of carbon tetrachloride to chloroform requires a catalyst for catalytic reaction. Traditional carbon tetrachloride conversion to chloroform catalysis uses hydrogenation reaction to reduce tetrachloride The catalytic efficiency of carbon-to-chloroform catalyst is not conducive to the catalysis of carbon tetrachloride to chloroform. Carbon chloride turns chloroform catalyst processing production; For these defects, it is necessary to design a kind of preparation method of carbon tetrachloride turn chloroform catalyst

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