chloropinacoline is produced by many methods, including methane thermal chlorination, carbon chlorination disulfide, co-production of tetrachloroethylene, phosgene catalysis, methanooxychlorination, high-pressure chlorination, methanohydrochlorination, etc. Two commonly used methods are methane thermal chlorination and carbon disulfide process.

Methane thermal chlorination process:

Methane is mixed with chlorine gas, and hot chlorination reaction occurs at 400-430℃ to produce crude product and byproduct hydrochloric acid. The crude product is neutralized, dried, and purified by distillation to obtain the finished product. Raw material consumption quota: natural gas (methane 98%) 210m3, liquid chlorine 2850kg/t.

Carbon disulfide process:

Chlorine gas and carbon disulfide react with iron as catalyst at 90-100℃, and the reaction product is fractionated, neutralized and rectified to obtain the finished product. This method has low investment and easy purification, but high cost and serious corrosion of equipment.

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