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The manufacturer of piperazine hexahydrate specializes in the production of chemical products such as piperazine hexahydrate, piperazine anhydrous, and hexapentapiperazine. The products are mainly used in chemicals and pharmaceuticals. Today I will introduce how piperazine hexahydrate is prepared.

Add quantitative hydrochloric acid and stir, concentrate under reduced pressure to a semi-paste ethanolamine hydrochloride concentrate, heat up to 150℃, add the melted paraffin, then continue to heat up to 260℃, keep (260±2)℃ for 12h , Discharging and filtering to remove paraffin to obtain piperazine hydrochloride.

Add solid sodium hydroxide, piperazine hydrochloride, and water into the reaction kettle, stir for 1.5h, discharge ammonia, then heat to 130～140℃, distill the piperazine hexahydrate solution, filter the residue, and freeze the piperazine hexahydrate solution to At 8°C, piperazine hexahydrate was obtained by centrifugal filtering.

Piperazine hexahydrate is obtained from chloroethanol as a raw material through amination and cyclization. The process is to heat chloroethanol and ammonium hydroxide in an autoclave to an ammonia pressure of 441 kPa, stir and react for 5 hours, and recover excess ammonium hydroxide at normal pressure to obtain an aqueous aminoethanol solution.

Piperazine hexahydrate is mainly used in the production of piperazine citrate, piperazine phosphate, an anthelmintic drug, as well as strong todine, fluphenazine, and rifampicin.

Okay The above is the preparation of piperazine hexahydrate that the manufacturer of piperazine hexahydrate briefly introduces for you.