Process for froth flotation of silicate-containing iron ore
    61.
    发明授权
    Process for froth flotation of silicate-containing iron ore 有权
    含硅酸盐铁矿石泡沫浮选工艺

    公开(公告)号:US6076682A

    公开(公告)日:2000-06-20

    申请号:US199372

    申请日:1998-11-25

    CPC classification number: B03D1/02 B03D1/01 B03D2201/02 B03D2203/04

    Abstract: The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by carrying out, at a pH of 8-11, a froth flotation in the presence of a depressing agent for the iron mineral and a collecting agent containing a combination of an ether monoamine and an ether polyamine, which contain an aliphatic hydrocarbon group having 6-22 carbon atoms in a weight ratio of the ether monoamine to the ether polyamine of 1:4-4:1. The invention also discloses a composition which is suitable for use in the process.

    Abstract translation: 本发明涉及一种从含硅酸盐的铁矿石中富集铁矿物的方法,该方法是在pH值为8-11的条件下,在铁矿物的抑制剂和含有 醚单胺和醚多胺的组合,其含有醚单胺与醚多胺的重量比为1:4-4:1的6-22个碳原子的脂族烃基。 本发明还公开了适用于该方法的组合物。

    Process and recovering minerals from non-sulfidic ores by flotation
    66.
    发明授权
    Process and recovering minerals from non-sulfidic ores by flotation 失效
    通过浮选从非硫化矿石中回收矿物的方法

    公开(公告)号:US5441156A

    公开(公告)日:1995-08-15

    申请号:US150117

    申请日:1993-11-29

    CPC classification number: B03D1/012 B03D1/008 B03D2201/02 B03D2203/04

    Abstract: Minerals can be recovered by flotation from non-sulfidic ores by using detergent mixtures containing:a) salts of sulfonation products of unsaturated fatty acids corresponding formula (I):R.sup.1 C(O)--OH (I)in which R.sup.1 CO is a linear or branched aliphatic acyl radical containing 12 to 24 carbon atoms and 1 to 5 double bonds, andb) salts of sulfonation products of unsaturated fatty acid glycerol esters corresponding to formula (II): ##STR1## in which R.sup.2 C(O) is a linear or branched aliphatic acyl radical containing 12 to 24 carbon atoms and 1 to 5 double bonds and R.sup.3 C(O) and R.sup.4 C(O) independently of one another represent a linear or branched aliphatic acyl radical containing 6 to 24 carbon atoms and 0 or 1 to 5 double bonds,and, optionally, other anionic and/or nonionic surfactants, as collectors.

    Abstract translation: PCT No.PCT / EP92 / 01120 Sec。 371日期:1993年11月29日 102(e)日期1993年11月29日PCT提交1992年5月20日PCT公布。 WO92 / 21443 PCT出版物 日期:1992年12月10日。矿物可以通过使用含有以下物质的洗涤剂混合物从非硫化矿石浮选回收:a)对应式(I)的不饱和脂肪酸磺化产物的盐:R1C(O)-OH(I) 该R1CO是含有12至24个碳原子和1至5个双键的直链或支链脂族酰基,和b)对应于式(II)的不饱和脂肪酸甘油酯的磺化产物盐:含有 12〜24个碳原子和1〜5个双键,R3C(O)和R4C(O)彼此独立地表示含有6至24个碳原子和0或1至5个双键的直链或支链脂族酰基, 任选地,其它阴离子和/或非离子表面活性剂作为收集剂。

    Phosphate beneficiation process
    68.
    发明授权
    Phosphate beneficiation process 失效
    磷酸盐选矿过程

    公开(公告)号:US5147528A

    公开(公告)日:1992-09-15

    申请号:US681817

    申请日:1991-04-08

    Inventor: Srdjan Bulatovic

    Abstract: A process for the froth flotation separation of phosphate containing minerals by the use of a new collector agent is described. The new phosphate collector agent is prepared by mixing a fatty acid, tall oil pitch, an amine, and optionally sarcosine with fuel or furnace oil, and subsequently oxidizing the mixture by known methods. The new phosphate collector agent is added to the conditioned slurry of the ground and deslimed phosphate containing ore. The slurry is then subjected to froth flotastion in one or more stages to collect the phosphate concentrate in the froth. The phosphate collector agent is also effective in recovering phosphates from slime.

    Abstract translation: 描述了通过使用新的收集剂进行泡沫浮选分离含磷酸盐矿物的方法。 通过将脂肪酸,妥尔油沥青,胺和任选的肌氨酸与燃料或炉油混合,然后通过已知方法氧化该混合物来制备新的磷酸盐收集剂。 将新的磷酸盐收集剂加入到经研磨和脱磷酸盐的矿石的调理浆料中。 然后将浆料在一个或多个阶段进行泡沫吸收,以在泡沫中收集磷酸盐浓缩物。 磷酸盐收集剂对于从粘液中回收磷酸盐也是有效的。

    Process for the froth flotation of oxide and salt type minerals and
composition
    69.
    发明授权
    Process for the froth flotation of oxide and salt type minerals and composition 失效
    氧化物和盐类矿物的泡沫浮选方法及组成

    公开(公告)号:US5130037A

    公开(公告)日:1992-07-14

    申请号:US504782

    申请日:1990-04-04

    CPC classification number: B03D1/008 B03D2201/02 B03D2203/04

    Abstract: A process is provided for the froth flotation of oxide and salt type minerals utilizing as the collector a combination of a monoester of a dicarboxylic acid of the general formula ##STR1## in which R' is an aliphatic hydrocarbon group with 7-21 carbon atoms, R" is a hydrocarbon radical with 2-6 carbon atoms and A is an alkylene oxide group derived from an alkylene oxide with 2-4 carbon atoms; and a monocarboxylic acid having the general formulaR'"COOH IIwherein R'" is a hydrocarbon group with 5-23 carbon atoms, the acid as being in an amount to increase the yield and/or the selectivity of the monoester in the flotation of alkaline earth metal-containing oxide and salt type minerals, such as apatite, fluorspar, calcite, baryte, scheelite, dolomite, and magnesite.

    Abstract translation: 提供了一种用于泡沫浮选氧化物和盐型矿物的方法,其利用作为收集器的通式为其中R'为具有7-21个碳原子的脂族烃基的二羧酸的单酯的组合 R“是具有2-6个碳原子的烃基,A是衍生自2-4个碳原子的烯化氧的烯化氧基团; 和具有通式R“COOH II的一元羧酸,其中R”是具有5-23个碳原子的烃基,该酸的量可以提高单酯的产率和/或选择性 浮选含碱土金属的氧化物和盐类矿物,如磷灰石,萤石,方解石,重晶石,白钨矿,白云石和菱镁矿。

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