What are the main application fields of coconut shell activated carbon produced by activation furnace?

As we all know, coconut shell activated carbon produced by coconut shell activation furnace has good adsorption effect. In fact, it can also be used as a catalyst in many fields. Today, let's talk about the main application fields of coconut shell activated carbon in catalysts.

Existing studies have shown that the functional groups on the surface of coconut shell activated carbon endow it with catalytic activity. The physical and chemical properties of coconut shell activated carbon as catalyst are affected by the types of raw materials and manufacturing conditions, which are caused by the types and numbers of functional groups on the surface of activated carbon, the crystallization degree and size of graphitic microcrystals, and the aggregation state of microcrystals, The synthesis of phosgene using coconut shell activated carbon as catalyst is an important reaction.

Phosgene (carbonyl chloride, CoCl2) is a raw material for the synthesis of polyurethane compounds. The latter is widely used in plastics, coatings, leather, packaging materials, etc. in the past, it was synthesized with carbon monoxide and chlorine under ultraviolet light, and its yield and speed are relatively low. Now it uses carbon dioxide and slightly excess carbon oxide. Through a reactor with catalyst activated carbon, phosgene with high conversion rate of 90% can be synthesized under 80 ~ 150 and 1 ~ 10 atmospheres, One ton of activated carbon can produce two tons of phosgene. Using a similar chlorination addition reaction, activated carbon can catalyze chlorine and sulfur dioxide to synthesize sulfuryl chloride. In addition, activated carbon is also used to catalyze hydrogenolysis of halogenated hydrocarbons, dehydration of sulfur and alcohols in soot, and polymerization of ethylene, propylene, butene and styrene.

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