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    • 10. 发明授权
    • Ore flotation process using carbamate compounds
    • 矿石浮选工艺使用氨基甲酸酯化合物
    • US5015368A
    • 1991-05-14
    • US538864
    • 1990-06-15
    • Stephen A. Di BiaseJames H. Bush
    • Stephen A. Di BiaseJames H. Bush
    • B03D1/012
    • B03D1/012B03D1/002B03D1/018B03D2201/007B03D2201/02B03D2203/02B03D2203/025
    • The present invention relates to an improved process for beneficiating an ore. In particular, the process is useful for beneficiating ores and recovering metal values such as gold, copper, lead, molybdenum, zinc, etc., from the ores. In one embodiment, the process comprises(A) forming a slurry comprising at least one crushed mineral-containing ore, water and a collector which is at least one carbamate represented by the formula: ##STR1## wherein each R.sub.1 is independently hydrogen, a hydrocarbyl group having from 1 to about 18 carbon atoms, or R.sub.1 taken together with R.sub.2 and the nitrogen atom form a five, six or seven member heterocyclic group; each R.sub.2 is independently a hydrocarbyl group having from 1 to about 18 carbon atoms, or R.sub.2 taken together with R.sub.1 and the nitrogen atom form a five, six or seven member heterocyclic group; and R.sub.3 is a hydrocarbylene group having from 1 to about 10 carbon atoms;(B) subjecting the slurry from step (A) to froth flotation to produce a froth; and(C) recovering a mineral from the froth.
    • 本发明涉及一种用于选矿的改进方法。 特别地,该方法可用于从矿石中选矿和回收金属,例如金,铜,铅,钼,锌等。 在一个实施方案中,该方法包括(A)形成包含至少一种破碎的含矿物矿石,水和收集器的浆料,该矿物质是至少一种由下式表示的氨基甲酸酯:其中每个R 1独立地是氢 ,具有1至约18个碳原子的烃基,或者R 1与R 2和氮原子一起形成五,六或七元杂环基; 每个R 2独立地为具有1至约18个碳原子的烃基,或R 2与R 1一起并且氮原子形成五,六或七元杂环基; 并且R 3是具有1至约10个碳原子的亚烃基; (B)对来自步骤(A)的浆料进行泡沫浮选以产生泡沫; 和(C)从泡沫中回收矿物质。