发明授权
- 专利标题: Process for continuously working up solutions of the type accumulating in the phosgenation of monoamines
- 专利标题(中): 连续处理在单胺光气化中积累的类型的溶液的方法
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申请号: US010650申请日: 1979-02-09
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公开(公告)号: US4195032A公开(公告)日: 1980-03-25
- 发明人: Johannes Koster , Peter Heitkamper , Peter Fuhrmann , Helmut Porkert
- 申请人: Johannes Koster , Peter Heitkamper , Peter Fuhrmann , Helmut Porkert
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX2806214 19780214
- 主分类号: C07C265/02
- IPC分类号: C07C265/02 ; C07C67/00 ; C07C241/00 ; C07C263/10 ; C07C263/20 ; C07C265/06 ; C07C118/00 ; C07C118/02
摘要:
The present invention relates to an improved process for the continuous production of alkylmonoisocyanates from commercial solutions containing N-alkyl carbamic acid chlorides by thermally decomposing the N-alkyl carbamic acid chlorides in the presence of inert solvents, and recovering the pure monoisocyanates by distillation.
公开/授权文献
- US5951185A Fluid material dispenser 公开/授权日:1999-09-14