| 发明名称 |
PROCESS FOR THE DE-TINNING OF TIN-PLATE |
| 摘要 |
<p>1532876 De-tinning scrap WIDNES SCRAP METAL CO Ltd 4 Aug 1977 [17 Aug 1976] 34093/76 Heading C7D Tin plate is de-tinned by immersion in sulphuric acid. The process may be carried out in two stages using a first bath of diluted commercial concentrated sulphuric acid followed by a second bath of higher concentration; the de-tinned scrap may then subjected to a masking step.</p> |
| 申请公布号 |
GB1532876(A) |
申请公布日期 |
1978.11.22 |
| 申请号 |
GB19760034093 |
申请日期 |
1977.08.04 |
| 申请人 |
WIDNES SCRAP METAL CO LTD |
发明人 |
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| 分类号 |
C22B25/06;C23F1/44;(IPC1-7):23G1/08 |
主分类号 |
C22B25/06 |
| 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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