发明名称 |
FORFARANDE FOR FRAMSTELLNING AV DETERGENTKOMPOSITIONER |
摘要 |
The problem of autoxidation of detergent powders containing relatively large amounts of nonionic surfactants is reduced by incorporating in the crutcher slurry a compound containing a positively charged nitrogen atom. Such compounds should be present in an amount of from 1/2 to 6% of the resultant spray-dried powder. If desired they can be incorporated into the slurry by injection into the high pressure line to the spray-drying tower. Typical compounds containing positively charged nitrogen atoms are quaternary ammonium or organic heterocycle salts, amine oxides and betaines, although quaternary ammonium salts are preferred. |
申请公布号 |
SE7701466(A) |
申请公布日期 |
1977.08.11 |
申请号 |
SE19770001466 |
申请日期 |
1977.02.09 |
申请人 |
* UNILEVER NV |
发明人 |
M * CURTIS;R L * DAVIES;J S * GALVIN |
分类号 |
C11D1/38;C11D1/62;C11D1/72;C11D1/835;C11D3/26;C11D11/02;(IPC1-7):C11D11/02 |
主分类号 |
C11D1/38 |
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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