Purification of kaolin clay by froth flotation using hydroxamate
collectors
    142.
    发明授权
    Purification of kaolin clay by froth flotation using hydroxamate collectors 失效
    使用异羟肟酸盐收集器通过泡沫浮选纯化高岭土

    公开(公告)号:US4629556A

    公开(公告)日:1986-12-16

    申请号:US676477

    申请日:1984-11-29

    Abstract: An improved flotation process for removal of colored titaniferous impurities from kaolin clay uses as collector a hydroxamate compound, or a mixture of compounds, having the formula ##STR1## in which R is an alkyl, aryl, or alkylaryl group having 4-28, and preferably 6-24 carbon atoms, and M represents an alkali metal, an alkaline earth metal or hydrogen. The process does not require the use of activators to make the collector adsorb selectively on the colored impurities.

    Abstract translation: 用于从高岭土中除去有色含钛杂质的改进的浮选方法用作收集剂,具有式“IMAGE”的肟基化合物或化合物的混合物,其中R是具有4-28的烷基,芳基或烷芳基,以及 优选6-24个碳原子,M表示碱金属,碱土金属或氢。 该方法不需要使用活化剂来使收集器选择性地吸附在着色杂质上。

    Selective flocculation of coal
    143.
    发明授权
    Selective flocculation of coal 失效
    煤的选择性絮凝

    公开(公告)号:US4555329A

    公开(公告)日:1985-11-26

    申请号:US679728

    申请日:1984-12-10

    Abstract: A method for separating inorganic gangues from coal particulates dispersed in a coal refuse slurry comprises the selective flocculation of the coal refuse slurry by initially adding an anionic dispersant followed subsequently by adding an anionic flocculant, allowing the flocculating coal slurry obtained to settle and collecting a concentrated settled coal slurry having a lowered ash value. The dispersed inorganic gangues may be recovered by the addition of a cationic flocculant/coagulant with subsequent recycle of the aqueous phase.

    Abstract translation: 分离无机ang石与分散在煤渣中的煤颗粒分离的方法包括:首先加入阴离子分散剂,然后加入阴离子絮凝剂,使得所获得的絮凝煤浆沉降并收集浓缩的煤渣,选择性地絮凝煤渣 沉降的煤浆具有降低的灰分值。 可以通过添加阳离子絮凝剂/凝结剂随后再循环水相来回收分散的无机ang石。

    Method for removing inorganic sulfides from non-sulfide minerals
    144.
    发明授权
    Method for removing inorganic sulfides from non-sulfide minerals 失效
    从非硫化物矿物中除去无机硫化物的方法

    公开(公告)号:US4552652A

    公开(公告)日:1985-11-12

    申请号:US542349

    申请日:1983-10-17

    Abstract: A method for removing inorganic sulfides from finely ground, non-sulfide minerals is provided. A polymeric agent having a molecular weight of from about 1,000 to about 300,000 and with a plurality of xanthate groups per molecule is admixed into an aqueous suspension including inorganic sulfides and non-sulfide minerals. The polymeric agent adsorbs onto the inorganic sulfides and maintains them as a dispersion while the remaining minerals are selectively separated, as by flocculation.

    Abstract translation: 提供了从精细研磨的非硫化物矿物中除去无机硫化物的方法。 将分子量为约1,000至约300,000并且每分子具有多个黄原酸酯基团的聚合物混合到包括无机硫化物和非硫化物矿物质的水性悬浮液中。 聚合物吸附到无机硫化物上并保持它们作为分散体,而剩余的矿物质通过絮凝选择性分离。

    Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays
    145.
    发明授权
    Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays 失效
    铝土矿,铝土矿粘土和铝矿物轴承粘土的升级

    公开(公告)号:US4303204A

    公开(公告)日:1981-12-01

    申请号:US201279

    申请日:1980-10-27

    Applicant: David Weston

    Inventor: David Weston

    Abstract: A process for the upgrading of aluminum mineral bearing raw materials by using at least three beneficiation treatment stages consisting of dispersion of a pulp of the material in specific pH ranges, screening in specific mesh sizes, and using at least one stage of high intensity magnetic separation.

    Abstract translation: 一种通过使用至少三个选矿处理阶段来升级含铝矿物轴承原料的方法,所述选矿处理阶段包括在特定pH范围内分散材料的纸浆,以特定筛目尺寸筛选,并使用至少一个高强度磁选分离 。

    Composition comprising a pulverized purified substance, water and a
dispersing agent, and a method for preparing the composition
    147.
    发明授权
    Composition comprising a pulverized purified substance, water and a dispersing agent, and a method for preparing the composition 失效
    包含粉碎的纯化物质,水和分散剂的组合物及其制备方法

    公开(公告)号:US4217109A

    公开(公告)日:1980-08-12

    申请号:US908497

    申请日:1978-05-23

    Abstract: A composition consisting of carbon powder, water and a dispersing agent. The particle size of the carbon powder is less than 100 .mu.m, preferably less than 40 .mu.m. The composition is obtained by preparing a mixture of about 1-20% by weight, preferably about 10% by weight, of carbonaceous powder, water and 0.02-4% by weight of dispersing agent. The dispersing agent is selected preferably from polyelectrolytes, such as alkali metal and ammonium salts of polycarboxylic acids, and polyphosphates. These substances possess the property of charging the powder particles of carbon and the impurity particles in a different degree. This different charging is utilized to separate impurity particles from carbon particles, whereupon the purified composition is suitably dehydrated to attain an increased carbon powder concentration of, for instance, 50-80% by weight.

    Abstract translation: 由碳粉,水和分散剂组成的组合物。 碳粉末的粒径小于100微米,优选小于40微米。 该组合物通过制备约1-20重量%,优选约10重量%的碳质粉末,水和0.02-4重量%的分散剂的混合物而获得。 分散剂优选选自聚电解质,例如多元羧酸的碱金属盐和铵盐,以及聚磷酸盐。 这些物质具有以不同的程度对碳和杂质颗粒的粉末颗粒充电的性质。 使用这种不同的装料将杂质颗粒与碳颗粒分离,由此将纯化的组合物适当地脱水以获得例如50-80重量%的增加的碳粉浓度。

    Concentration of spodumene using flotation
    148.
    发明授权
    Concentration of spodumene using flotation 失效
    使用浮游生物的浓度

    公开(公告)号:US3710934A

    公开(公告)日:1973-01-16

    申请号:US3710934D

    申请日:1970-06-29

    Inventor: WYMAN R

    Abstract: A method of concentrating and recovering spodumene from an aqueous pulp or slurry by conditioning the pulp with an aliphatic primary beta-amine having from seven to 15 carbon atoms (preferably as a soluble acid salt), subjecting to flotation at a pH of about 8-10 to float off the impurities, and recovering the spodumene concentrate as residue.

    Abstract translation: 通过用具有7至15个碳原子的脂肪族伯胺(优选作为可溶性酸盐)调节纸浆,从水性纸浆或浆料中浓缩和回收锂辉石的方法,在pH约为8- 10漂浮杂质,并回收锂辉石浓缩物作为残留物。

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