发明名称 |
Method to reduce corrosivity of photographic processing effluent |
摘要 |
This relates to a method of rendering a used photographic processing solution less corrosive to low carbon steel comprising: taking at least a used photographic processing solution containing a color developing agent and a used photographic processing solution containing a bleaching agent; delivering the used photographic processing solutions to a collection vessel to form a used photographic processing composition; and adjusting the pH of the used photographic processing composition to 6.5 to 11.
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申请公布号 |
US2003194661(A1) |
申请公布日期 |
2003.10.16 |
申请号 |
US20030436183 |
申请日期 |
2003.05.12 |
申请人 |
SCHMITTOU ERIC R.;SALSEDO CYNTHIA A. |
发明人 |
SCHMITTOU ERIC R.;SALSEDO CYNTHIA A. |
分类号 |
G03C5/00;C02F1/66;G03C5/395;G03C7/407;G03C7/42;(IPC1-7):G03C5/38 |
主分类号 |
G03C5/00 |
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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