Process for separating and recovering dimethylsulfoxide from extracted Chinese-medicinal liquid by freeze drying method

Process for separating and recovering dimethylsulfoxide from extracted Chinese-medicinal liquid by freeze drying method

  • CN 1,369,481 A
  • Filed: 02/06/2002
  • Published: 09/18/2002
  • Est. Priority Date: 02/06/2002
  • Status: Active Application
First Claim
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1. , a kind of with the method for lyophilize mode from Chinese medicine extract separating and recovering dimethyl sulfoxide, it is characterized in that:

  • will be frozen into the ice crystal state with the dimethylsulfoxide extraction liquid cooling of Chinese medicine, keeping refrigerated simultaneously, provide heat that the dimethyl sulfoxide solvent in the ice crystal structure is evaporated, thereby reclaim dimethyl sulfoxide (DMSO) steam and obtain Powdered Chinese medical extract.

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