发明名称 |
Sepg. mineral from fine grain compsn. contg. gangue - by treatment with aq. metal sulphate soln., and aq. polyethylene glycol soln. |
摘要 |
<p>Metallic minerals are sepd. from compsns. contg. gangue by contacting the compsn. with particle size less than 10 microns, with 2 immiscible liqs., comprising (a) an aq. soln. of a metal sulphate and (b) an aq. soln. of a polyethylene glycol with mol.wt. 2000-25,000. Pref the polyethylene glycol has mol.wt. 2500-20,000 and is used as a 10-25 wt.% soln. The sulphate soln. contains 100-300g sulphate/l of water.</p> |
申请公布号 |
NL8303971(A) |
申请公布日期 |
1985.06.17 |
申请号 |
NL19830003971 |
申请日期 |
1983.11.18 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. TE 'S-GRAVENHAGE. |
发明人 |
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分类号 |
B01D12/00;B03D3/00;C22B1/00;(IPC1-7):C22B3/00 |
主分类号 |
B01D12/00 |
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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