Beryllium flotation process
    81.
    发明授权
    Beryllium flotation process 失效
    铍浮选工艺

    公开(公告)号:US4735710A

    公开(公告)日:1988-04-05

    申请号:US933844

    申请日:1986-11-24

    Inventor: Srdjan Bulatovic

    Abstract: A process and reagents are described for separating beryllium silicate concentrates by flotation from oxidic minerals. The process is especially suitable for the separation of phenacite and bertrandite present in ores with complex gangue compositions. The ore is ground and subjected to acid pretreatment, then conditioned by the addition of pH modifier, alkali fluoride activator and a depressant containing sodium hexametaphosphate and carboxymethyl cellulose, or hexametaphosphate and quebracho. The conditioned ore is thereafter treated with a tall oil fatty acid-based collector mixture, of general formula C.sub.17 H.sub.31-35 COOH; which also contains cresylic acid, kerosene and a branched short-chained aliphatic alcohol, such as methyl-iso-butyl carbinol. Mercapto acetic acid and alkali metal hydrogen sulphide may also be added in the second and third stages of conditioning, respectively, for increasing selectivity. The mineral concentration process includes conventional rougher and cleaner flotation steps. Yttrium and rare earth oxides, if present will be retained in the tailings.

    Abstract translation: 描述了通过浮选从氧化矿物中分离硅酸镧精矿的方法和试剂。 该方法特别适用于矿物中存在的复合脉石组合物中的矿物和矿物的分离。 将矿石研磨并进行酸预处理,然后通过加入pH调节剂,碱金属氟化物活化剂和含有六偏磷酸钠和羧甲基纤维素或六偏磷酸盐和quebracho的抑制剂进行调理。 然后将经调节的矿石用通式C 17 H 31 1- 35 COOH的妥尔油脂肪酸基收集​​混合物处理; 其还含有甲酚,煤油和支链短链脂族醇,例如甲基 - 异丁基甲醇。 也可以在调理的第二和第三阶段分别加入巯基乙酸和碱金属硫化氢以提高选择性。 矿物浓缩过程包括常规的粗糙和更清洁的浮选步骤。 钇和稀土氧化物(如果存在)将保留在尾矿中。

    Froth flotation
    82.
    发明授权
    Froth flotation 失效
    泡沫浮选

    公开(公告)号:US4732666A

    公开(公告)日:1988-03-22

    申请号:US920259

    申请日:1986-10-16

    CPC classification number: B03D1/021 B03D1/008 B03D2201/02 B03D2203/06

    Abstract: A process for recovering phosphate values from a finely divided ore containing the phosphate values and gangue such as an ore containing apatite, calcite and dolomite, by froth flotation includes the steps of suspending the finely divided ore containing the phosphate values and the gangue in a liquid at a pH of greater than 7; adding to the suspension a froth flotation collector comprising a tall oil fatty acid and an emulsifier for the tall oil fatty acid selected from alkylphenylalkoxylates having the formula: ##STR1## wherein: n is an integer from 8-10 inclusive;m is an integer from 10-20 inclusive; andalkyl is --CH.sub.2 --CH.sub.2 -- or ##STR2## the froth flotation collector comprising 80-99% by weight of the collector of the tall oil fatty acid and 20 to 1% by weight of the collector of the emulsifier; introducing a gas such as air into the liquid to produce a froth containing the phosphate values and leaving suspended the other solid gangue; and recovering the phosphate values.

    Abstract translation: 通过泡沫浮选从含有磷酸盐值和ang石的细碎矿石中回收磷酸盐的方法,例如含有磷灰石,方解石和白云石的矿石包括将含有磷酸盐和脉石的细碎矿石悬浮在液体中的步骤 在大于7的pH下; 向所述悬浮液中加入包含妥尔油脂肪酸的泡沫浮选收集器和用于所述妥尔油脂肪酸的乳化剂,所述妥尔油脂肪酸选自具有下式的烷基苯基烷氧基化物:其中:n是8-10的整数; m为10-20以下的整数; 和烷基是-CH 2 -CH 2 - 或泡沫浮选收集器,其包含80-99重量%的妥尔油脂肪酸的收集器和20-1重量%的乳化剂收集器; 将诸如空气的气体引入液体中以产生含有磷酸盐值的泡沫,并使悬浮的其它固体g石; 并回收磷酸盐值。

    Mixtures of alkyl xanthogen formates and dialkyl thionocarbamates as
collectors in froth flotation
    83.
    发明授权
    Mixtures of alkyl xanthogen formates and dialkyl thionocarbamates as collectors in froth flotation 失效
    烷基黄原酸甲酯和硫代碳酸二烷基酯的混合物作为泡沫浮选中的收集剂

    公开(公告)号:US4729843A

    公开(公告)日:1988-03-08

    申请号:US835982

    申请日:1986-03-04

    Applicant: Kim N. Unger

    Inventor: Kim N. Unger

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

    Abstract: The present invention provides a new collector for use in the froth flotation of metal values from their ores. The collector comprises a synergistic mixture of alkyl xanthogen alkyl formates and dialkyl thionocarbamates, and yields metal recoveries superior to that achieved with either collector alone. According to the present invention the novel collector for use in froth flotation comprises a mixture of alkyl xanthogen alkyl formates having the general formula: ##STR1## wherein R is a branched or straight chain alkyl substituent having 1 to 6 carbon atoms, and R' is selected from the class consisting of ethyl and methyl; anddialkyl thionocarbamates having the general formula: ##STR2## wherein Y is a branched or straight chain alkyl substituent having 1 to 6 carbon atoms, and Y' is selected from the class consisting of ethyl and methyl.

    Abstract translation: 本发明提供了一种用于泡沫浮选其矿石中的金属值的新收集器。 收集器包括烷基黄原烷基甲酸酯和硫代碳酸二烷基酯的协同混合物,并且产生的金属回收率优于单独使用收集器实现的。 根据本发明,用于泡沫浮选的新型收集器包括具有以下通式的烷基黄原烷基甲酸酯的混合物:其中R是具有1至6个碳原子的支链或直链烷基取代基,R'是 选自乙基和甲基类; 和具有以下通式的二烷基硫代碳酸氢盐:其中Y是具有1至6个碳原子的支链或直链烷基取代基,Y'选自乙基和甲基。

    Ore dressing method
    86.
    发明授权
    Ore dressing method 失效
    矿石敷料法

    公开(公告)号:US4699712A

    公开(公告)日:1987-10-13

    申请号:US834144

    申请日:1986-02-25

    Applicant: Kim N. Unger

    Inventor: Kim N. Unger

    CPC classification number: B03D1/012 B03D1/014 B03D2201/02 B03D2203/02

    Abstract: An ore dressing method for beneficiating copper from copper bearing ore by froth flotation employing the collector which comprises a mixture of an O,O-bis(alkylphenyl) phosphorodithioic compound, e.g., sodium O,O-bis(isopropylphenyl) phosphorodithioate, and a thiono compound which is an alkyl xanthogen formate, e.g., isobutyl xanthogen alkyl ethyl formate, and/or a thionocarbamate, e.g., N-ethyl O-isopropyl dialkyl thionocarbamate.

    Abstract translation: 一种选矿方法,通过使用收集器进行泡沫浮选从含铜矿石中选择铜,该收集器包括O,O-双(烷基苯基)二硫代磷酸化合物,例如O,O-双(异丙基苯基)二硫代磷酸钠和硫醇 化合物,其为甲基黄原酸甲酯,例如异丁基黄原烷基甲酸乙酯和/或硫代氨基甲酸酯,例如N-乙基O-异丙基二硫代氨基甲酸异丙酯。

    Collector compositions for the froth flotation of mineral values
    87.
    发明授权
    Collector compositions for the froth flotation of mineral values 失效
    用于泡沫浮选矿物价值的收集器组合物

    公开(公告)号:US4684459A

    公开(公告)日:1987-08-04

    申请号:US856728

    申请日:1986-04-28

    CPC classification number: B03D1/012 B03D1/01 B03D1/014 B03D2201/02 B03D2203/02

    Abstract: A collector composition for use in froth flotation processes comprises two collectors. One of the collectors is preferably an omega-(hydrocarbylthio)alkylamine, S-(omega-aminoalkyl) hydrocarbyl thioate, N-(hydrocarbyl)-alpha, omega-alkanediamine, (omega-aminoalkyl) hydrocarbon amide, omega-(hydrocarbyloxy)alkylamine, omega-aminoalkyl hydrocarbonoate or mixture thereof. The second collector is a thiocarbonate, a thionocarbamate, a thiophosphate, thiocarbinilide, thiophosphinate, mercaptan, xanthogen formate, xanthic ester or mixture thereof. The collector composition floats a broad range of metal-containing minerals.

    Abstract translation: 用于泡沫浮选工艺的收集器组合物包括两个收集器。 其中一种收集剂优选为ω-(烃基硫基)烷基胺,S-(ω-氨基烷基)烃基硫代酸酯,N-(烃基)-α,ω-烷二胺,(ω-氨基烷基)烃酰胺,ω-(烃氧基)烷基胺 ,ω-氨基烷基烃酸盐或其混合物。 第二收集器是硫代碳酸盐,硫代氨基甲酸盐,硫代磷酸盐,硫代替西滨,硫代次膦酸盐,硫醇,黄原酸盐,黄原酸酯或它们的混合物。 收集器组合物漂浮了宽范围的含金属矿物质。

    Collector compositions for the froth flotation of mineral values
    88.
    发明授权
    Collector compositions for the froth flotation of mineral values 失效
    用于泡沫浮选矿物价值的收集器组合物

    公开(公告)号:US4676890A

    公开(公告)日:1987-06-30

    申请号:US856512

    申请日:1986-04-28

    Abstract: A collector composition useful for the recovery of metal values from metal ores in a froth flotation process comprises two collectors. One collector is an organic compound containing at least 4 carbon atoms and one or more monosulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbons. The other collector is preferably an omega-(hydrocarbylthio)alkylamine, S-(omega-aminoalkyl)hydrocarbyl thioate, N-(hydrocarbyl)-alpha, omega-alkanediamine, N-(omega-aminoalkyl)hydrocarbon amide, omega-(hydrocarbyloxy)alkalamine, omega-aminoalkyl hydrocarbonate or mixture thereof. The collector composition floats a broad range of metal values including sulfide ores, oxide ores and precious metals.

    Abstract translation: 用于在泡沫浮选工艺中从金属矿石中回收金属值的收集器组合包括两个收集器。 一个收集器是含有至少4个碳原子和一个或多个单硫化物单元的有机化合物,其中与硫原子结合的碳原子是脂族或脂环族碳。 另一个收集器优选为ω-(烃基硫代)烷基胺,S-(ω-氨基烷基)烃基硫代酸酯,N-(烃基)-α,ω-烷二胺,N-(ω-氨基烷基)烃酰胺,ω-(烃氧基) 碱胺,ω-氨基烷基碳酸酯或其混合物。 收集器组合物漂浮了广泛的金属值,包括硫化矿石,氧化物矿石和贵金属。

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