发明授权
US4301004A N-aminoethylpiperazine condensates for beneficiation of phosphate ore
失效
用于选矿的N-氨基乙基哌嗪缩合物
- 专利标题： N-aminoethylpiperazine condensates for beneficiation of phosphate ore
- 专利标题（中）： 用于选矿的N-氨基乙基哌嗪缩合物
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申请号： US41161申请日： 1979-05-21
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公开(公告)号： US4301004A公开(公告)日： 1981-11-17
- 发明人: Robert E. Hefner, Jr.
- 申请人： Robert E. Hefner, Jr.
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： B03D1/01
- IPC分类号： B03D1/01 ; B03D1/02
摘要：
In the beneficiation of phosphate ore by the flotation of siliceous material, the utilization of a condensate of N-aminoethylpiperazine with a fatty acid or fatty acid ester improves the separation of phosphate from silica. This improvement is especially great in the presence of a co-collector consisting of a polyethylenepolyamine condensed with a fatty acid.
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