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    Froth flotation of bastnaesite
    141.
    发明授权
    Froth flotation of bastnaesite 失效
    泡沫浮选

    公开(公告)号：US4772382A

    公开(公告)日：1988-09-20

    申请号：US933845

    申请日：1986-11-24

    Applicant: Srdjan Bulatovic

    Inventor： Srdjan Bulatovic

    IPC: B03D1/002 ,  B03D1/004 ,  B03D1/02

    CPC classification number: B03D1/02 ,  B03D1/002 ,  B03D1/01 ,  B03D1/012 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2201/06

    Abstract: A process is described for the mineral separation of rare earth metal compounds, such as bastnaesite, contained in oxidic minerals. The process is a froth flotation process utilizing a novel collector emulsion, which is an emulsified mixture of:a secondary amine modified sulphonated fatty acid,a high rosin containing tall oil fatty acid,an anionic petroleum sulphonate, anda high molecular weight primary amine.The collector emulsion mixture is added to the aqueous slurry of the comminuted rare earth metal compound containing oxidic mineral, which has been previously conditioned in a conventional manner. The conditioning reagents may include alkaline pH modifiers and gangue depressants such as citric acid, oxalic acid, sodium silicates and fatty acids.The rare earth metal compounds will be concentrated in the froth, and are separated in the conventional manner.

    Abstract translation: 描述了一种用于矿物分离稀土金属化合物的方法，如稀土矿物，包含在氧化矿物中。 该方法是利用新型收集剂乳液的泡沫浮选方法，其是以下胺的乳化混合物：仲胺改性的磺化脂肪酸，含有妥尔油脂肪酸的高松香，阴离子石油磺酸盐和高分子量伯胺。 将收集剂乳液混合物加入到以前以常规方式调理的含氧化矿物粉碎的稀土金属化合物的含水浆液中。 调理试剂可以包括碱性pH调节剂和ang石抑制剂，例如柠檬酸，草酸，硅酸钠和脂肪酸。 稀土金属化合物将被浓缩在泡沫中，并以常规方式分离。

    Beryllium flotation process
    143.
    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

    Applicant: Srdjan Bulatovic

    Inventor： Srdjan Bulatovic

    IPC: B03D1/002 ,  B03D1/004 ,  B03D1/008 ,  B03D1/02

    CPC classification number: B03D1/002 ,  B03D1/006 ,  B03D1/008 ,  B03D1/016 ,  B03D1/018 ,  B03D1/02 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

    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。

    Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and diammonium-di(carboxyalkyl)dithiocarbamate flotation agents for use therein
    144.
    发明授权
    Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and diammonium-di(carboxyalkyl)dithiocarbamate flotation agents for use therein 失效
    矿石浮选和二碱金属二（羧基烷基）二硫代氨基甲酸盐和二铵 - 二（羧基烷基）二硫代氨基甲酸盐浮选剂用于其中

    公开(公告)号：US4702821A

    公开(公告)日：1987-10-27

    申请号：US705824

    申请日：1985-02-26

    Applicant: Clarence R. Bresson ,  Harold W. Mark

    Inventor： Clarence R. Bresson ,  Harold W. Mark

    IPC: B03D1/012 ,  B05D1/14

    CPC classification number: B03D1/012 ,  B03D2201/06 ,  B03D2203/02

    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, R.sup.2 is selected from the group consisting of alkylene radicals and wherein M is selected from the group consisting of ammonium and alkali metal atoms, their use as ore flotation depressants, and a process for making these novel compositions are disclosed.

    Abstract translation: 可以通过下式表征的二硫代氨基甲酸苄酯：其中R选自亚烷基，其中R'选自氢和甲基和乙基，R2选自亚烷基 自由基，其中M选自铵和碱金属原子，它们作为矿石浮选抑制剂的用途，以及制备这些新型组合物的方法。

    Process for the selective separation of base metal sulfides and oxides contained in an ore
    145.
    发明授权
    Process for the selective separation of base metal sulfides and oxides contained in an ore 失效
    用于选择性分离矿石中所含的贱金属硫化物和氧化物的方法

    公开(公告)号：US4650569A

    公开(公告)日：1987-03-17

    申请号：US673563

    申请日：1984-11-21

    Applicant: Alfredo P. Vargas

    Inventor： Alfredo P. Vargas

    IPC: B03B1/04 ,  B03D1/002 ,  B03D1/02 ,  B03D1/06 ,  B03D1/14

    CPC classification number: B03B1/04 ,  B03D1/002 ,  B03D1/02 ,  B03D1/06 ,  B03D2201/06 ,  B03D2203/02

    Abstract: The present invention comprises a process for the separation of ore components by flotation comprising: grinding ore to form pulp, mixing said pulp with sulfide ions and cyanide ions, adjusting the concentration of said sulfide ions to a level at least sufficient to cause depression of base metal mixed sulfides but insufficient to cause substantial activation of pyrites, and adjusting the concentration of said cyanide ions to a level at least sufficient to cause auxiliary depression of the mineral components of said ore which are required to be depressed in said flotation, but insufficient to cause overdepression of said mineral components; said sulfide ions and cyanide ions having been introduced to said pulp at predetermined times and in a predetermined sequence.

    Abstract translation: 本发明包括通过浮选分离矿石成分的方法，包括：研磨矿石以形成纸浆，将所述纸浆与硫化物离子和氰化物离子混合，将所述硫化物离子的浓度调节至至少足以引起碱的抑制 金属混合硫化物，但不足以引起黄铁矿的大量活化，并且将所述氰化物离子的浓度调节至至少足以引起在所述浮选中需要抑制的所述矿石的矿物组分的辅助抑制，但不足以 导致所述矿物组分的过度抑制; 所述硫化物离子和氰化物离子在预定时间和预定的顺序被引入所述纸浆。

    Low molecular weight copolymers as depressants in sylvinite ore flotation
    146.
    发明授权
    Low molecular weight copolymers as depressants in sylvinite ore flotation 失效
    低分子量共聚物作为硅藻土矿石浮选中的抑制剂

    公开(公告)号：US4533465A

    公开(公告)日：1985-08-06

    申请号：US631009

    申请日：1984-07-16

    Applicant: Richard M. Goodman ,  Sim K. Lim

    Inventor： Richard M. Goodman ,  Sim K. Lim

    IPC: B03D1/016 ,  C01D3/08 ,  B03D1/14

    CPC classification number: C01D3/08 ,  B03D1/016 ,  B03D1/01 ,  B03D2201/06 ,  B03D2203/04

    Abstract: Low molecular weight copolymers of the general formula: ##STR1## exhibit excellent concentrative action in the flotation of sylvinite ores thereby resulting in improved selectivity and recovery of sylvite (KCl). The low molecular weight copolymers perform concentrative action without resulting in any associated flocculation in the flotation process.

    Abstract translation: 具有以下通式的低分子量共聚物：＆lt; IMAGE＆gt;在硅藻土矿石的浮选中表现出优异的浓缩作用，从而提高了硅藻土（KCl）的选择性和回收率。 低分子量共聚物进行浓缩作用，而不会在浮选过程中导致任何相关的絮凝。

    Crosslinked starches as depressants in mineral ore flotation
    148.
    发明授权
    Crosslinked starches as depressants in mineral ore flotation 失效
    交联淀粉作为矿物浮选中的抑制剂

    公开(公告)号：US4339331A

    公开(公告)日：1982-07-13

    申请号：US213532

    申请日：1980-12-05

    Applicant: Sim K. Lim ,  Richard M. Goodman

    Inventor： Sim K. Lim ,  Richard M. Goodman

    IPC: B03D1/004 ,  B03D1/008 ,  B03D1/016 ,  B03D1/02 ,  B03D1/06

    CPC classification number: B03D1/016 ,  B03D1/008 ,  B03D1/02 ,  B03D2201/06 ,  B03D2203/04

    Abstract: Conventional starches are chemically crosslinked for use as selective depressants in the flotation of non-sulfide mineral ores. The process employing these crosslinked starches requires lower reagent dosages, exhibits improved selectivity and recovery and exerts a lower load on existing waste treatment facilities. The crosslinking agents employed are bifunctional and are used in sufficient quantities to result in 500 to 10,000 anhydroglucose units per crosslink.

    Abstract translation: 常规的淀粉化学交联，用作非硫化矿物矿石浮选中的选择性抑制剂。 使用这些交联淀粉的方法需要较低的试剂剂量，显示出提高的选择性和回收率，并对现有的废物处理设备施加较低的负荷。 使用的交联剂是双功能的，并且以足够的量使用，以产生每交联500至10,000个脱水葡萄糖单元。

    Benefication of fluorspar ores
    149.
    发明授权
    Benefication of fluorspar ores 失效
    萤石矿的益处

    公开(公告)号：US4288315A

    公开(公告)日：1981-09-08

    申请号：US24215

    申请日：1979-03-26

    Applicant: John C. Morrisey, IV ,  Ulus R. Smith

    Inventor： John C. Morrisey, IV ,  Ulus R. Smith

    IPC: B03D1/06 ,  B03D1/002 ,  B02B1/02

    CPC classification number: B03D1/002 ,  B03D1/008 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/10

    Abstract: An improvement is provided in a process for the flotation of an acid grade fluorspar enriched concentrate, having a sulfide sulfur content not greater than about 0.02%, from a fluorspar ore containing in addition to fluorspar substantial amounts of gangue minerals and metallic sulfide accessory minerals. The invention utilizes in this conventional flotation process an alkali metal sulfide, preferably sodium sulfide, as a depressor reagent, in substitution of environmentally objectionable sodium cyanide, to depress the flotation of metallic sulfide minerals, thereby rendering a flotation concentrate low in sulfide sulfur content while substantially reducing associated environmental effects.

    Abstract translation: 在除了含有大量的脉石矿物和金属硫化物附属矿物之外，还含有除了含有大量石榴石矿物和金属硫化物附属矿物的萤石矿石之外，还可以从含有不超过约0.02％的硫化物硫含量的酸性氟石富集浓缩物浮选过程中得到改进。 本发明在这种常规浮选方法中利用碱金属硫化物，优选硫化钠作为抑制剂，代替环境不利的氰化钠，以抑制金属硫化物矿物的浮选，从而使浮选精矿的硫化物硫含量低，同时 大大减少相关的环境影响。

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