Acidification of subterranean formations employing halogenated
hydrocarbons
    1.
    发明授权
    Acidification of subterranean formations employing halogenated hydrocarbons 失效
    使用卤代烃酸化地下地层

    公开(公告)号:US4320014A

    公开(公告)日:1982-03-16

    申请号:US195979

    申请日:1980-10-10

    Inventor: Thomas A. Vivian

    CPC classification number: C09K8/72 Y10S507/933

    Abstract: The in situ production of hydrochloric acid in a subterranean formation to increase the flow of gas or oil therefrom by decomposing a polyhalohydrocarbon in the formation is accomplished at lower temperature by injecting the polyhalohydrocarbon together with isopropyl alcohol or a Lewis acid, e.g. FeCl.sub.3, or a mixture of the alcohol and Lewis acid.

    Abstract translation: 在地下地层中盐酸的原位生产通过分解地层中的多卤代烃来增加其中的气体或油的流动,在较低温度下通过将多卤代烃与异丙醇或路易斯酸(例如, FeCl 3,或醇和路易斯酸的混合物。

    Stripping compositions with reduced vapor containing MeCl.sub.2, a wax
and ethylene or propylene carbonate
    3.
    发明授权
    Stripping compositions with reduced vapor containing MeCl.sub.2, a wax and ethylene or propylene carbonate 失效
    具有含有MeCl 2,蜡和乙烯或碳酸丙烯酯的还原蒸汽的汽提组合物

    公开(公告)号:US4645617A

    公开(公告)日:1987-02-24

    申请号:US815955

    申请日:1986-01-03

    Inventor: Thomas A. Vivian

    CPC classification number: C09D9/005

    Abstract: There is disclosed a composition of matter useful for stripping paint and varnish from substrates comprised of the conventional industrial chlorinated solvents, e.g. methylene chloride (dichloromethane) solvent and a wax, such as paraffin wax, which composition is improved by the addition thereto of a novel class of evaporation retarding chemicals resulting in a far more effective stripping action and a much improved environmentally desirable composition, with respect to the concentration of methylene chloride in the ambient atmosphere surrounding the work situs. The evaporation retarding chemical can be a surfactant, a resin plasticizer or ethylene or propylene carbonate.

    Abstract translation: 公开了一种用于从由常规工业氯化溶剂组成的底物中剥离漆和清漆的物质组合物,例如。 二氯甲烷(二氯甲烷)溶剂和蜡,例如石蜡,其组合通过添加一种新型的蒸发阻滞化学品而得到改善,导致更有效的剥离作用和大大改善的环境要求的组合物,相对于 二氧化氯在工作区周围环境气氛中的浓度。 蒸发阻滞化学品可以是表面活性剂,树脂增塑剂或乙烯或碳酸亚丙酯。

    Process of separating and recovering metal values from a waste stream
    5.
    发明授权
    Process of separating and recovering metal values from a waste stream 失效
    从废物流中分离和回收金属值的方法

    公开(公告)号:US5002645A

    公开(公告)日:1991-03-26

    申请号:US386342

    申请日:1989-07-27

    Abstract: Described is a method of separating and recovering metal values from a waste stream containing metal hydroxides comprising the steps of providing an aqueous waste stream containing metal values including chromium; subjecting the waste stream to an oxidation process to convert the chromium to chromium (VI); precipitating the other metal values in the aqueous stream by adjusting the pH of the stream to cause the precipitations; and separately recovering the chromium (VI) from the remaining metal values. The process described pertains to separating and recovering metal values such as those from an electroplating process or an electroless process wherein the metals may be iron, cobalt, zinc, cadmium, nickel, copper, silver, aluminum and chromium. The chromium recovery step is performed by oxidizing chromium (III) to chromium (VI) preferably in the presence of a manganese catalyst and preferably utilizing ultrasound waves. The remaining metal values are separated by the use of a chelating ion exchange resin.

    Abstract translation: 描述了从含有金属氢氧化物的废物流中分离和回收金属值的方法,包括以下步骤:提供含有包含铬的金属值的废水流; 对废物流进行氧化处理以将铬转化为铬(VI); 通过调节流的pH使沉淀物沉淀在水流中的其它金属值; 并从剩余的金属值分别回收铬(VI)。 所述方法涉及分离和回收金属值,例如来自电镀工艺或非电镀工艺的金属值,其中金属可以是铁,钴,锌,镉,镍,铜,银,铝和铬。 优选在锰催化剂存在下,优选利用超声波将铬(III)氧化成铬(VI)来进行铬回收步骤。 剩余的金属值通过使用螯合离子交换树脂分离。

    Coal enhancement process and equipment
    6.
    发明授权
    Coal enhancement process and equipment 失效
    煤炭加工过程和设备

    公开(公告)号:US4579650A

    公开(公告)日:1986-04-01

    申请号:US717200

    申请日:1985-03-28

    CPC classification number: B03B9/005 B03B5/447

    Abstract: A process for enhancing coal by removing the gangue (rock, shale, iron pyrites and the like) associated with the mined coal as it comes from the crushers before further treatment. The process described slurries the crushed run of the mine (ROM) coal with a heavy medium, such as perchloroethylene, for a short period of time at ambient or below temperatures, (i.e. slurry times of 5-30 minutes and temperatures of 90.degree. C. to below -10.degree. C.); thereafter allowing, in a substantially quiescent environment, the solids to settle or float as their inherent densities are greater or lesser respectively than the density of the heavy medium. After settling the float solids (mostly coal of lower sulfur and ash content) are separated from the heavy medium as one stream and the sink solids (mostly the gangue) as a second stream. These solids are each washed with hot (90.degree. C.-100.degree. C.) water and the vapor azeotrope which forms from the water and heavy medium mixture (azeotrope) removed. The now water wet solids are separated from the body of hot water and sent for further processing or loading. The solids, both the coal and the gangue, have a heavy medium content of less than about 400 parts heavy medium per million parts solids.

    Abstract translation: 通过在进一步处理之前从破碎机中除去与开采的煤相关联的g石(岩石,页岩,铁黄铁矿等)来增强煤的方法。 所述方法在环境温度或低于温度下短时间内(例如浆料时间为5-30分钟,温度为90℃)将重金属介质(例如全氯乙烯)的矿砂(ROM​​)煤粉碎 至-10℃以下); 此后,在基本上静止的环境中,固体沉淀或漂浮,因为它们的固有密度分别大于或小于重介质的密度。 在沉降后,将浮选固体(主要是较低硫和灰分的煤)与重介质作为一个流分离,并将沉积物固体(主要是ang石)作为第二流分离。 将这些固体各自用热(90℃-100℃)水洗涤,并从水和重介质混合物(共沸物)中形成蒸气共沸物。 现在的水湿固体与热水体分开并进行进一步加工或加载。 煤和煤ang石的固体物质的重量介质含量低于每百万份固含量约400份重的介质。

    Compositions for reflowing organic surfaces
    7.
    发明授权
    Compositions for reflowing organic surfaces 失效
    用于回流有机表面的组合物

    公开(公告)号:US3933518A

    公开(公告)日:1976-01-20

    申请号:US534243

    申请日:1974-12-19

    Inventor: Thomas A. Vivian

    CPC classification number: C08J7/02

    Abstract: Compositions containing 80 to 90 percent by volume of chlorinated aliphatic hydrocarbons and 1 to 20 percent by volume of an alkylene glycol alkanoate or an alkylene glycol ether alkanoate have been found to be excellent for use in the vapor reflow of organic surfaces.

    Abstract translation: 已经发现,含有80〜90体积%的氯化脂肪族烃和1〜20体积%的烷撑二醇链烷酸酯或亚烷基二醇醚链烷酸酯的组合物在有机表面的蒸汽回流中使用是优异的。

    Compositions for reflowing organic surfaces
    8.
    发明授权
    Compositions for reflowing organic surfaces 失效
    用于回流有机表面的组合物

    公开(公告)号:US3933517A

    公开(公告)日:1976-01-20

    申请号:US512784

    申请日:1974-10-07

    Inventor: Thomas A. Vivian

    CPC classification number: C08J7/02

    Abstract: Compositions containing 80 to 99 percent by volume of chlorinated aliphatic hydrocarbons and 1 to 20 percent by volume of an alkylene glycol alkanoate or an alkylene glycol ether alkanoate have been found to be excellent for use in the vapor reflow of organic surfaces when the composition is employed in a superheated vaporous state.

    Abstract translation: 已经发现,当使用组合物时,含有80-99%(体积)氯代脂族烃和1至20%(体积)烷基二醇链烷酸酯或亚烷基二醇醚链烷酸酯的组合物在用于有机表面的蒸气回流中是非常优异的 处于过热蒸气状态。

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