发明名称 |
Sodium hydrosulfite composition |
摘要 |
A bleaching composition comprises sodium hydrosulfite, hexamethylenetetramine and a water soluble sulfite such as sodium sulfite or ammonium sulfite, or further a polyphosphate such as a pyrophosphate or a tripolyphosphate and is used in bleaching pulp with a good bleaching effect with no substantial hydrogen sulfide generation.
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申请公布号 |
US4357256(A) |
申请公布日期 |
1982.11.02 |
申请号 |
US19800128098 |
申请日期 |
1980.03.07 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
YAMAGUCHI, TAKAAKI |
分类号 |
C01B17/66;C11D7/54;D06L3/10;D21C9/10;(IPC1-7):C09K3/00 |
主分类号 |
C01B17/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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