Silicone glycol collectors in the beneficiation of fine coal by froth
flotation
    22.
    发明授权
    Silicone glycol collectors in the beneficiation of fine coal by froth flotation 失效
    硅烷二醇收集器通过泡沫浮选精细细煤

    公开(公告)号:US4526680A

    公开(公告)日:1985-07-02

    申请号:US615395

    申请日:1984-05-30

    Inventor: Michael J. Owen

    Abstract: A froth flotation process for the beneficiation of fine coal is disclosed which employs as a collector a water-dispersible polyorganosiloxane or a mixture of water-dispersible polyorganosiloxanes which contain organic radicals selected from the group consisting of polyethylene oxide and polypropylene oxide radicals. The process of this invention is especially useful for the beneficiation of difficult-to-float fine coals.

    Abstract translation: 公开了一种用于精细选煤的泡沫浮选方法,其采用水分散性聚有机硅氧烷或水分散性聚有机硅氧烷的混合物作为收集器,其含有选自聚环氧乙烷和聚丙烯氧化物基团的有机基团。 本发明的方法对于难以浮选的细煤的选矿特别有用。

    Ester-alcohol frothers for froth flotation of coal
    23.
    发明授权
    Ester-alcohol frothers for froth flotation of coal 失效
    用于泡沫泡沫的酯 - 醇起泡剂

    公开(公告)号:US4504385A

    公开(公告)日:1985-03-12

    申请号:US454607

    申请日:1982-12-30

    Applicant: Robert O. Keys

    Inventor: Robert O. Keys

    Abstract: Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an ester-alcohol frothing agent. The preferred ester-alcohol frothing agents are reaction products of C.sub.1 -C.sub.10 mono-basic carboxylic acids and diols wherein the total number of carbon atoms range from about 6-19 and monocarboxylic acid esters of polyoxyalkylene glycols which can contain up to 25-30 carbon atoms.

    Abstract translation: 公开了一种改进的方法,其中煤颗粒通过在泡沫浮选条件下的泡沫浮选来选择,以将期望的煤颗粒与剩余的不需要的灰分和类似的脉石材料分离。 本发明的改进包括在酯 - 醇起泡剂的存在下进行泡沫浮选。 优选的酯醇起泡剂是C1-C10单碱性羧酸和二醇的反应产物,其中碳原子的总数范围为约6-19,聚氧亚烷基二醇的单羧酸酯可以含有至多25-30个碳 原子

    Froth flotation method for recovering zirconium minerals
    24.
    发明授权
    Froth flotation method for recovering zirconium minerals 失效
    用于回收锆矿物的泡沫浮选方法

    公开(公告)号:US4437983A

    公开(公告)日:1984-03-20

    申请号:US416285

    申请日:1982-09-09

    Abstract: An improved method in concentration of zirconium ores and minerals by froth flotation process which comprises subjecting a sufficiently fine sized ore of zirconium metal in the presence of phenethylglycolic acid or its sodium salt; or the like alkyl substituted phenylglycolic acid; the indicated compound provide selectivity and recovery of zirconium minerals over silica and silicate gangue.

    Abstract translation: 一种通过泡沫浮选方法提高锆矿石和矿物质浓度的方法,其包括在苯乙醇酸或其钠盐存在下对足够细的矿石矿锆进行处理; 或类似的烷基取代的苯基乙醇酸; 所指示的化合物提供锆矿物质对二氧化硅和硅酸盐脉石的选择性和回收率。

    Process for the separation of coal particles from fly ash by flotation
    25.
    发明授权
    Process for the separation of coal particles from fly ash by flotation 失效
    通过浮选将煤颗粒与飞灰分离的方法

    公开(公告)号:US4426282A

    公开(公告)日:1984-01-17

    申请号:US348102

    申请日:1982-02-11

    Abstract: Flotation of fly ash to recover coal contained therein is carried out in at least two steps, pH of the flotation slurry in the first step being 6-8, and in the last step lower than in the first step and below 6.5, preferably in the range of 3-5. The temperature may be ambient but is preferably 30.degree.-60.degree. C. As collector and frother several of those commonly employed are usable, preferably gas oil and pine oil, respectively. Desired pH is preferably achieved by sulphuric acid if desired in part by acidic flue gases. There is obtained separation into an almost carbon-free ash fraction and a carbonaceous fraction of low ash content.

    Abstract translation: 浮选灰分以回收其中所含的煤至少两个步骤,第一步中浮选浆液的pH为6-8,最后一步比第一步低,低于6.5,最好在 范围3-5。 温度可以是环境温度,但优选为30℃-60℃。作为收集器和起泡器,可以使用几种常用的,优选瓦斯油和松油。 如果需要,希望的部分通过酸性烟道气,希望的pH由硫酸实现。 得到几乎不含碳的灰分和低灰分含量的碳质部分的分离。

    Froth flotation
    26.
    发明授权
    Froth flotation 失效
    泡沫浮选

    公开(公告)号:US4416769A

    公开(公告)日:1983-11-22

    申请号:US334237

    申请日:1981-12-24

    Abstract: This invention relates to froth flotation of coal.According to the invention a predominantly paraffinic residual oil having a cut point of at least 190.degree. C. at atmospheric pressure is used as a "collector" for the froth flotation of minerals. A preferred oil is a coal spray oil used in coke oven technology. The "collector" is for use with a "frother" such as a polyglycol ether.

    Abstract translation: 本发明涉及煤的泡沫浮选。 根据本发明,在大气压下具有至少190℃的切割点的主要为石蜡的残油用作矿物浮沫浮选的“收集器”。 优选的油是用于焦炉技术的喷煤油。 “收集器”用于“起泡剂”如聚乙二醇醚。

    Dore slag treatment
    27.
    发明授权
    Dore slag treatment 失效
    多孔渣处理

    公开(公告)号:US4404022A

    公开(公告)日:1983-09-13

    申请号:US334897

    申请日:1981-12-28

    Abstract: A method is disclosed for treating dore slag resulting from smelting of a dore furnace charge, by grinding such slag and then subjecting the obtained pulp to froth flotation in the presence of a suitable frother and collector to produce a precious metals concentrate which is then filtered and returned to the dore furnace with the next charge. The tails from the froth flotation may then be finely ground and subjected to several additional flotation stages to improve recovery of the precious metals, and the entire operation is preferably carried out as a closed loop process so that only the tailings from the rougher flotation are removed and shipped to the smelter.

    Abstract translation: 公开了一种通过研磨这种炉渣来处理由熔炉炉渣冶炼产生的多孔炉渣的方法,然后在合适的起泡剂和收集器的存在下对获得的纸浆进行泡沫浮选以产生贵金属浓缩物,然后将其过滤, 在下一次收费的情况下返回钻孔炉。 然后可以将来自泡沫浮选的尾部精细研磨并进行若干额外的浮选阶段以改善贵金属的回收,并且整个操作优选作为闭环工艺进行,以便仅去除较粗糙的浮选的尾矿 并运到冶炼厂。

    Polyhydroxy fatty acids collector-frothers
    28.
    发明授权
    Polyhydroxy fatty acids collector-frothers 失效
    多羟基脂肪酸收集剂

    公开(公告)号:US4368116A

    公开(公告)日:1983-01-11

    申请号:US241560

    申请日:1981-03-09

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

    Abstract: Beneficiation of metallic oxide ores by froth flotation process using polyhydroxy fatty acids collector-frothers in the presence of silica, silicates, and the like gangue minerals to obtain pure concentrates of desired metal values; comprises, adding to a water suspension of finely divided ore material of polyhydroxy fatty acids to collect the metal value, leaving unaffected gangue minerals.

    Abstract translation: 在二氧化硅,硅酸盐等类似的脉石矿物质存在下,使用多羟基脂肪酸收集器 - 起泡剂,通过泡沫浮选方法获得金属氧化物矿石,以获得所需金属值的纯浓缩物; 包括加入多分解矿物材料的多羟基脂肪酸的水悬浮液以收集金属值,留下未受影响的脉石矿物。

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