● NH 4 Cl production

Ammonia and HCl can be directly synthesized to produce NH 4 Cl, and phosphorus chloride can also be used as an intermediate of 4-hydroxymethyl phosphorus chloride.

● Metal chloride production

Silicon tetrachloride can be prepared by the reaction of silicon carbon and hydrogen chloride in the presence of phosgene and NiCl 2 at a temperature of 700 ℃. The chlorides of Mo, Nb, Ta, Ti, Zr, Hf, Cr, W and other metals can also be prepared by the corresponding reaction of metal nitride and hydrogen chloride.

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● Chlorinated hydrocarbon production

Hydrogen chloride can be produced by addition reaction with alkenes and alkanes. For example, at 35 ~ 40 ℃, hydrogen chloride and ethane are reacted in the liquid phase to produce chloroethane. The industrial production of 1, 1-dichloroethane and 1,1, 1-trichloroethane is produced from chloroethane and hydrogen chloride.

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● Organic synthesis

In the synthesis of organic matter, hydrogen chloride can be used directly as a chlorination agent, for example, various alkyl chlorides can be prepared by chlorinating corresponding alcohols with hydrogen chloride.

● Other applications

Hcl-h 2 mixture can be used for heavy oil desulfurization. High temperature dissociation of HCl has been applied to chemical plasma reactions, through which various chlorocarbons and chlorinated hydrocarbons of C 1 and C 2 can be synthesized from carbon and hydrogen chloride.