发明授权
- 专利标题: Process for the production of thiosemicarbazide
- 专利标题(中): 硫代氨基脲生产工艺
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申请号: US462973申请日: 1983-02-01
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公开(公告)号: US4716247A公开(公告)日: 1987-12-29
- 发明人: Axel Kleemann , Herbert Klenk , Wolfgang Schulz
- 申请人: Axel Kleemann , Herbert Klenk , Wolfgang Schulz
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Degussa Aktiengesellschaft
- 当前专利权人: Degussa Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX3204149 19820206
- 主分类号: C07C337/06
- IPC分类号: C07C337/06 ; C01B21/093 ; C01C3/20 ; C07C67/00 ; C07C325/00 ; C07C159/00
摘要:
To produce thiosemicarbazide hydrazine is reacted with hydrogen cyanide and sulfur to form hydrazine thiocyanate, and this is then converted into the thiosemicarbazide at an elevated temperature. Advantageously, the reaction is carried out in a polar solvent.
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