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    Polymeric sulfide mineral depressants
    2.
    发明授权
    Polymeric sulfide mineral depressants 失效
    聚合硫化物矿物抑制剂

    公开(公告)号：US4902764A

    公开(公告)日：1990-02-20

    申请号：US157559

    申请日：1988-02-19

    申请人： Alan S. Rothenberg ,  David W. Lipp ,  Samuel S. Wang ,  Donald P. Spitzer

    发明人： Alan S. Rothenberg ,  David W. Lipp ,  Samuel S. Wang ,  Donald P. Spitzer

    IPC分类号： B03D1/016

    CPC分类号： B03D1/016 ,  B03D1/008 ,  B03D1/01 ,  B03D2201/06 ,  B03D2203/02

    摘要： A novel polymer composition comprising recurring units of the formula: ##STR1## wherein each R.sup.1 is, individually, hydrogen or C.sub.1 -C.sub.4 alkyl; each R.sup.5, individually, is hydrogen or a C.sub.1 -C.sub.4 lower alkyl group; X is OH or SH; Y is OR.sup.2, SR.sup.2, NR.sub.2.sup.2, or NR.sup.2 -NR.sub.2.sup.2 ; R.sup.2 is hydrogen, a C.sub.1 -C.sub.4 lower alkyl or a C.sub.1 -C.sub.4 substituted lower alkyl, no more than one of Y and X being hydroxyl, and M is hydrogen, an alkali metal cation or an ammonium ion; x represents a residual mole percent fraction; y is a mole percent fraction ranging from about 0.5% to about 25%; z is a mole percent fraction ranging from about 0% to about 25%; and the molecular weight of the polymer is between about 1,000 and 500,000.

    摘要翻译： 一种新型聚合物组合物，其包含下式的重复单元：其中每个R 1分别为氢或C 1 -C 4烷基; 每个R 5分别为氢或C 1 -C 4低级烷基; X是OH或SH; Y是OR2，SR2，NR22或NR2-NR22; R2是氢，C1-C4低级烷基或C1-C4取代的低级烷基，Y和X中不超过一个是羟基，M是氢，碱金属阳离子或铵离子; x表示残留摩尔百分数; y是约0.5％至约25％的摩尔百分比; z是约0％至约25％的摩尔百分比; 并且聚合物的分子量在约1,000和500,000之间。

    Neutral hydrocarboxycarbonyl thiourea sulfide collectors
    5.
    发明授权
    Neutral hydrocarboxycarbonyl thiourea sulfide collectors 失效
    中性烃羧基硫脲硫化物收集器

    公开(公告)号：US4556483A

    公开(公告)日：1985-12-03

    申请号：US641660

    申请日：1984-08-17

    申请人： Yun-Lung Fu ,  Samuel S. Wang

    发明人： Yun-Lung Fu ,  Samuel S. Wang

    IPC分类号： B03D1/012 ,  B03D1/14

    CPC分类号： B03D1/012 ,  B03D2201/02 ,  B03D2203/02

    摘要： New and improved collector compositions for use in froth flotation processes for the beneficiation of mineral values from base metal sulfide ores are disclosed. The collector compositions comprise at least one hydrocarboxycarbonyl thiourea compound selected from compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen or R.sup.2 ; R.sup.2 is selected from saturated and unsaturated hydrocarbyl radicals, hydrocarboxy radicals and aromatic radicals; and R.sup.3 is selected from saturated and unsaturated hydrocarbyl radicals, alkyl polyether radicals and aromatic radicals, said R.sup.2 and R.sup.3 radicals, optionally, and independently, being substituted by polar groups selected from halogen, nitrile and nitro groups. The use of the hydrocarboxycarbonyl thiourea collectors provides excellent metallurgical recoveries of sulfide mineral values in froth flotation processes conducted over a very broad range of pH including acid, neutral and mildly alkaline pH.

    摘要翻译： 公开了用于从基础金属硫化物矿石中选择矿物值的泡沫浮选工艺中使用的新的和改进的收集器组合物。 收集器组合物包含至少一种选自下式的化合物的羧基羰基硫脲化合物：其中R 1是氢或R 2; R2选自饱和和不饱和烃基，烃羧基和芳族基; R 3选自饱和和不饱和烃基，烷基聚醚基团和芳族基团，所述R 2和R 3基团任选地和独立地被被选自卤素，腈和硝基的极性基团取代。 使用烃羧基硫脲收集器提供优异的冶金回收率，在非常广泛的pH范围内进行的泡沫浮选工艺中的硫化物矿物质值，包括酸，中性和弱碱性pH。