Environmentally safe promoter for use in flotation separation of carbonates from minerals
    71.
    发明授权
    Environmentally safe promoter for use in flotation separation of carbonates from minerals 有权
    用于从矿物质中分离碳酸盐的环境安全促进剂

    公开(公告)号:US07275643B2

    公开(公告)日:2007-10-02

    申请号:US11203919

    申请日:2005-08-15

    CPC classification number: B03D1/008 B03D2201/007 B03D2201/02 B03D2201/04

    Abstract: An environmentally safe composition of matter for use as a promoter chemical in flotation separation of carbonates from industrial sand is disclosed. The promoter chemical replaces the standard petroleum sulfonate, glycol ether and nonphenol used in promoter chemicals with biodegradable substitutes permitting the waste from flotation separation to be disposed without fear of contamination of ground water. The biodegradable promoter is technically sound and causes little change to the flotation process.

    Abstract translation: 公开了用于将碳酸盐从工业砂浮选分离中用作促进剂化学物质的环境安全的组合物。 促进剂化学品用可生物降解的替代物代替促进剂化学品中使用的标准石油磺酸盐,乙二醇醚和非酚类,允许浮选分离废物处理,而不用担心地下水的污染。 可生物降解的促进剂在技术上是可靠的,并且对浮选过程几乎没有改变。

    METHOD OF PRODUCING POLYOXYALKYLENE GLYCEROL ETHER FATTY ACID ESTERS
    72.
    发明申请
    METHOD OF PRODUCING POLYOXYALKYLENE GLYCEROL ETHER FATTY ACID ESTERS 无效
    生产聚氧乙烯甘油醚脂肪酸酯的方法

    公开(公告)号:US20020121346A1

    公开(公告)日:2002-09-05

    申请号:US08929011

    申请日:1997-09-08

    Abstract: The invention relates to a method of producing fatty acid esters of polyoxyalkylene glycerol ethers. The method comprises reacting an alkylene oxide or oxides directly with a mixture of a natural fat or oil, water and a catalyst. The method of the invention can avoid the complicatedness encountered in the prior art production processes and give polyoxyalkylene glycerol ether fatty acid esters excellent in surfactant performance.

    Abstract translation: 本发明涉及一种生产聚氧化烯甘油醚的脂肪酸酯的方法。 该方法包括使环氧烷或氧化物与天然油脂,水和催化剂的混合物直接反应。 本发明的方法可以避免现有技术生产过程中遇到的复杂性,并提供表面活性剂性能优异的聚氧化烯甘油醚脂肪酸酯。

    Method for optimizing flotation recovery
    73.
    发明授权
    Method for optimizing flotation recovery 失效
    优化浮选回收方法

    公开(公告)号:US06390303B1

    公开(公告)日:2002-05-21

    申请号:US09359262

    申请日:1999-07-22

    Abstract: A method for optimising a mineral recovery process. A slurry 10 is fed to a conditioning step 20. The condition slurry 30 is then provided to a flotation circuit 40 to recover a concentrate 50. The remainder of the slurry is then rejected as tail 60 or passed for further processing. The present invention provides apparatus for analysing a sample stream 100 of the slurry. A sample stream 100 is provided to an analysis device 200 which treats the sample with an oxidising gas similar to the oxidative treatment 20. Several parameters are measured before and/or after the oxidative treatment of the slurry. The flotability characteristic of the slurry is then determined as a function of the measured parameter(s). The result is used to optimise mineral recovery. This apparatus can be used intermittently or continuously to provide on-going optimisation of the mineral recovery circuit.

    Abstract translation: 一种优化矿物回收过程的方法。 浆料10被供给到调节步骤20.然后将条件浆料30提供给浮选回路40以回收浓缩物50.剩余的浆料然后被拒绝作为尾部60或通过用于进一步处理。 本发明提供了用于分析浆料的样品流100的装置。 将样品流100提供给分析装置200,分析装置200用类似于氧化处理20的氧化气处理样品。在浆料的氧化处理之前和/或之后测量几个参数。 然后根据所测量的参数确定浆料的浮选特性。 结果用于优化矿物回收。 该装置可以间歇地或连续地使用以提供矿物质回收回路的持续优化。

    Flutation process for the flutation of coarse fractions of potash ores
    74.
    发明授权
    Flutation process for the flutation of coarse fractions of potash ores 失效
    用于浮选钾矿粗粉碎的浮选工艺

    公开(公告)号:US5456362A

    公开(公告)日:1995-10-10

    申请号:US249508

    申请日:1994-05-26

    Abstract: A process for the flotation of coarse potash ore fractions in an aqueous brine containing frother that comprises: (a) using a column flotation device in which air bubbles are generated by a sparger that utilizes high intensity shearing to mix and disperse air into brine containing frother; (b) removing a portion of the suspension at another point in the direction of flow of the suspension to regulate the upward flow rate of the suspension past the point where the air is dispersed into the suspension and thereby reducing fine particles entrainment in the froth product. The suspension can be conditioned with an aqueous composition comprising a hydrocarbon extender oil and a substantially saturated long chain primary mine, optionally comprising an acid, such as a mineral acid or carboxylic acid, to emulsify the oil in the composition, or can be conditioned with an aqueous composition comprising a long chain primary amine having an iodine value ranging from about 20 to about 70 cg/g.

    Abstract translation: 一种用于在含有起泡剂的含水盐水中浮选粗钾矿石馏分的方法,其包括:(a)使用柱浮选装置,其中通过使用高强度剪切的喷雾器产生气泡以将空气混合并分散到含有起泡沫的盐水中 ; (b)在悬浮液流动方向的另一个位置移除一部分悬浮液,以调节悬浮液向空气分散到悬浮液中的向上流速,从而减少泡沫产品中的微粒夹带 。 悬浮液可以用包含烃增量油和基本上饱和的长链原矿,任选地包含酸如无机酸或羧酸的水性组合物进行调理,以使组合物中的油乳化,或者可以用 包含碘值在约20至约70cg / g范围内的长链伯胺的含水组合物。

    Process for the froth flotation of complex metal compounds
    78.
    发明授权
    Process for the froth flotation of complex metal compounds 失效
    泡沫浮选复合金属化合物的工艺

    公开(公告)号:US4561970A

    公开(公告)日:1985-12-31

    申请号:US545510

    申请日:1983-10-26

    Abstract: The invention relates to a process for the froth flotation of complex ores. In accordance with this invention, froth flotation is carried out by using a collector and froth flotation conditions for which it has been calculated in advance that the said mineral and the collector form stable surface compounds. The conditions include the electrochemical potential of the system, the concentration of the collector, the pH, and other physical factors. According to this invention it has been observed that by adjusting the potential and the concentration of the collector separately for each mineral, each mineral can be frothed out separately from the slurry, the process being in this case specific for the mineral. When so desired, the different minerals of the ore slurry can also be frothed simultaneously by selecting the conditions where the Pourfaix-type diagrams of all minerals in said complex ore overlap under the conditions in question.

    Abstract translation: 本发明涉及复杂矿石泡沫浮选的方法。 根据本发明,通过使用预先计算的收集器和泡沫浮选条件进行泡沫浮选,所述矿物和集电体形成稳定的表面化合物。 条件包括系统的电化学势,集电极浓度,pH值等物理因素。 根据本发明,已经观察到,通过为每种矿物分别调节收集器的电位和浓度,每种矿物可以与浆料分离出来,该方法在这种情况下特异于矿物。 当需要时,矿石浆料的不同矿物质也可以通过选择所述复杂矿石中所有矿物的Pourfaix型图在相关条件下重叠的条件同时发泡。

    Method of conditioning clay for flotation using in situ ferrous activator
    79.
    发明授权
    Method of conditioning clay for flotation using in situ ferrous activator 失效
    使用原位亚铁激活剂调节粘土的浮选方法

    公开(公告)号:US4501658A

    公开(公告)日:1985-02-26

    申请号:US411250

    申请日:1982-08-25

    Inventor: Raymond H. Young

    Abstract: Method of treating a clay to remove therefrom titanium mineral impurities comprising the steps of mixing an aqueous clay with a collector for the titanium mineral impurities, a reducing agent, and, if needed, an activator preferably comprising a water-soluble ferrous salt; conditioning the resulting mixture of aqueous clay slurry, collector, reducing agent and activator to dissipate therein at least 25 horsepower hours of energy per ton of solids; subjecting the conditioned mixture to froth flotation and removing titanium impurities with the froth; and recovering clay having a reduced titanium minerals impurities content. The method includes the case where the activator is a ferrous salt formed in situ from iron impurities in the clay formed by adding said reducing agent in place of some or all of added activator.

    Abstract translation: 处理粘土以除去钛矿物杂质的方法,包括以下步骤:将含水粘土与用于钛矿物杂质的收集器混合,还原剂和如果需要的优选包含水溶性亚铁盐的活化剂; 调节所得的含水粘土浆料,收集剂,还原剂和活化剂的混合物,以在其中散发每吨固体至少25马力的能量; 对经过调节的混合物进行泡沫浮选并用泡沫除去钛杂质; 并回收具有降低的钛矿物杂质含量的粘土。 该方法包括活化剂是通过加入所述还原剂代替添加的一些或全部活化剂形成的粘土中的铁杂质原位形成的亚铁盐。

    Process for the selective separation of uranium from accompanying metals
    80.
    发明授权
    Process for the selective separation of uranium from accompanying metals 失效
    选择性分离铀与伴生金属的工艺

    公开(公告)号:US4486392A

    公开(公告)日:1984-12-04

    申请号:US296440

    申请日:1981-08-26

    Abstract: Disclosed is a process for the selective separation of uranium from metals accompanying it in a uranium-containing ore, comprising the steps of preparing a uranium-containing solution; adding to the solution (i) hydrochloric acid in an amount sufficient to form complex anions of the type(UO.sub.2 Cl.sub.n).sup.n-2wherein n is 3 or 4, or (ii) sulfuric acid in an amount sufficient to form complex anions of the typeUO.sub.2 (SO.sub.4).sub.m.sup.2-2mwherein m is 2 or 3; adding to the solution a cationic surface active agent which forms a relating insoluble precipitate with the complex anion; subjecting the solution containing said precipitate to a gas flotation step; separating the foam fraction from the liquid fraction; and recovering uranium from the foam fraction. Also disclosed is an apparatus for carrying out the process.

    Abstract translation: 公开了一种在含铀矿石中选择性分离铀与伴随其的金属的方法,包括制备含铀溶液的步骤; 加入足以形成(UO2Cln)n-2类型(UO2Cln)n-2的复合阴离子(其中n为3或4)的盐酸溶液(i),或(ii)足以形成类型的复合阴离子的硫酸 UO2(SO4)m2-2m其中m为2或3; 向溶液中加入阳离子表面活性剂,其与络合物阴离子形成不相溶的沉淀物; 使含有所述沉淀物的溶液进行气体浮选步骤; 从泡沫馏分中分离出液体馏分; 并从泡沫馏分回收铀。 还公开了一种用于执行该过程的装置。

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