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发明名称
Chemical beneficiation of phosphatic limestone and phosphate rock with alpha -hydroxysulfonic acids
摘要
申请公布号
UST988006(I4)
申请公布日期
1979.11.06
申请号
US19780940940
申请日期
1978.09.11
申请人
发明人
分类号
C01F5/42;C01F11/48
主分类号
C01F5/42
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代理人
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