发明名称 |
Improvements to the processes for enriching, by flotation, phosphate ores containing siliceous and/or carbonate gangue. |
摘要 |
Improvements to processes for enriching phosphate ores by flotation. This process is characterised in that it comprises the following stages: - a first stage during which the ore in concentrated or dilute pulp form is conditioned at alkaline pH for 15 seconds to 3 minutes with the aid of a collector advantageously consisting of an amine or ether amine carboxylate and/or of a phosphoric ester or a mixture of phosphoric esters; - a second stage during which the flotation of the silicates and/or of the carbonates is performed, which results in a flotation precipitate containing phosphate particles - and in the case where the gangue contains silicates and after the flotation of the carbonates, - a third stage during which the separation of the phosphate present in the precipitate is carried out. Application to the processes for enriching, by flotation, phosphate ores containing siliceous and/or carbonate gangue.
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申请公布号 |
FR2529475(A1) |
申请公布日期 |
1984.01.06 |
申请号 |
FR19820011561 |
申请日期 |
1982.07.01 |
申请人 |
GAFSA CIE PHOSPHATES |
发明人 |
HEDI ENNAFFATI, AMMAR HENCHIRI ET LAZHAR YAKDHANE;HENCHIRI AMMAR;YAKDHANE LAZHAR |
分类号 |
B03D1/01;B03D1/014;B03D1/02;(IPC1-7):03D1/02;01B25/01;03D1/08;01F17/34 |
主分类号 |
B03D1/01 |
代理机构 |
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主权项 |
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地址 |
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