发明授权
- 专利标题: Bleaching of alkali metal hydroxide solutions
- 专利标题(中): 碱性金属氢氧化物溶液的漂白
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申请号: US3630674D申请日: 1969-06-13
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公开(公告)号: US3630674A公开(公告)日: 1971-12-28
- 发明人: DAVIDSON JAMES G JR
- 申请人: HOOKER CHEMICAL CORP
- 专利权人: Hooker Chemical Corp
- 当前专利权人: Hooker Chemical Corp
- 优先权: US83314569 1969-06-13
- 主分类号: C01D1/36
- IPC分类号: C01D1/36 ; C01D1/06 ; C01D1/00
摘要:
Consistent color removal from aqueous alkali metal hydroxide solutions is obtained by prebleaching such solutions with a chlorine bleaching agent, and then afterbleaching the product with hydrogen peroxide.
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