发明授权
- 专利标题: Production of auramine salts and auramine salt solutions
- 专利标题(中): 制备芳香胺盐和芳香胺盐溶液
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申请号: US37877573申请日: 1973-07-12
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公开(公告)号: US3927095A公开(公告)日: 1975-12-16
- 发明人: EISERT MANFRED , SCHMEIDL KARL
- 申请人: BASF AG
- 专利权人: Basf Ag
- 当前专利权人: Basf Ag
- 优先权: DE2234836 1972-07-15; DE2258344 1972-11-29; DE2261064 1972-12-14
- 主分类号: C09B11/00
- IPC分类号: C09B11/00 ; C09B11/02 ; C09B55/00 ; C09B67/26 ; C09B69/06 ; C07C119/00
摘要:
Production of auramine salts and auramine salt solutions from 4,4''-bisdimethylaminodiphenylmethane or 4,4''bisdiethylaminodiphenylmethane in the presence of sulfur and urea by reaction of the components, with or without the addition of an ammonium salt, taking up the auramine base in a solvent which is not miscible with water and extracting the auramine base by reaction with an acid in water, formamide or glycol with the formation of a salt. The auramine salts and auramine salt solutions obtained are outstandingly suitable for the production of dye liquors.
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