Amine mining collectors
    1.
    发明授权
    Amine mining collectors 有权
    胺采矿者

    公开(公告)号:US09481634B2

    公开(公告)日:2016-11-01

    申请号:US15005162

    申请日:2016-01-25

    Applicant: Thomas P. Daly

    Inventor: Thomas P. Daly

    Abstract: A family of amine mining collectors that uses alkoxylates allows for the easy adjustment of solubility and molecular weight useful because anionic and cationic mineral collectors require such varying degrees of solubility and molecular weight. The family of the present invention allows for the optimization of both parameters and an increase in collector efficiency.

    Abstract translation: 使用烷氧基化物的一族胺开采收集器允许容易地调节溶解度和分子量,因为阴离子和阳离子矿物收集剂需要这种不同程度的溶解度和分子量。 本发明的家族允许两个参数的优化和收集器效率的提高。

    Xanthate manufacture
    8.
    发明授权
    Xanthate manufacture 失效
    XANTHATE制造

    公开(公告)号:US3767692A

    公开(公告)日:1973-10-23

    申请号:US3767692D

    申请日:1972-05-15

    Applicant: CANADIAN IND

    Inventor: CHIA C

    CPC classification number: C07C329/00

    Abstract: AN IMPROVEMENT IN THE PROCESS FOR THE MANUFACTURE OF ALKALI METAL XANTHATES BY THE REACTION OF AN ALKYL ALCOHOL, CARBON DISULPHIDE AND ALKALI HYDROXIDE IN THE PRESENCE OF AN INERT DILUENT. THE IMPROVEMENT RESIDES IN THE REDUCTION OF SCALE FORMATION ON THE SURFACE OF THE HEAT EXCHANGER OF THE REACTION VESSEL BY ADDITION OF PELLETS OF AN INERT PLASTIC MATERIAL TO THE REACTION MIXTURE. THE USE OF THE PELLETS PERMITS AN INCREASE IN THE RATE OF PRODUCTION OF ALKALI METAL XANTHATES.

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