利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.018 秒)

    Process for the precipitation of heavy metal ion-polycarboxylate complexes
    6.
    发明授权
    Process for the precipitation of heavy metal ion-polycarboxylate complexes 失效
    沉淀重金属离子 - 多羧酸盐络合物的方法

    公开(公告)号：US3956121A

    公开(公告)日：1976-05-11

    申请号：US522799

    申请日：1974-11-11

    申请人： Heinz Haschke ,  Helmut Knorre ,  Gerhard Morlock ,  Gerhard Pohl

    发明人： Heinz Haschke ,  Helmut Knorre ,  Gerhard Morlock ,  Gerhard Pohl

    IPC分类号： C08F8/00 ,  C02F1/52 ,  C02F1/62 ,  C02F9/00 ,  C08F8/42 ,  C02B1/20

    CPC分类号： C02F9/00 ,  C02F1/5236 ,  C02F1/001 ,  C02F1/66 ,  C02F2101/20 ,  C02F2101/303

    摘要： A process for precipitating heavy metal ion-polycarboxylate complexes from solution, said process comprising adding to a solution containing at least one of said complexes an aqueous solution of a water soluble aluminum salt, the anion of which does not form any water soluble complexes with said heavy metal ions to be precipitated or optionally such anion-heavy metal complexes having a stability constant, expressed as their decadic logarithm, of less than 2; wherein 0.9 to 1.8 moles of aluminum ions are employed per equivalent of polycarboxylate; and adjusting the pH of the resulting reaction mixture to about 6.5 to about 9.0 with an alkali metal carbonate.

    摘要翻译： 一种从溶液中沉淀重金属离子 - 多羧酸盐络合物的方法，所述方法包括向含有至少一种所述络合物的溶液中加入水溶性铝盐的水溶液，水溶性铝盐的阴离子不与所述复合物形成任何水溶性络合物 要沉淀的重金属离子或任选的具有小于2的具有稳定常数（表示为十进制对数）的阴离子 - 重金属络合物; 其中每当量的聚羧酸盐使用0.9至1.8摩尔的铝离子; 并用碱金属碳酸盐将所得反应混合物的pH调节至约6.5至约9.0。

    Procedure for the reprocessing of used lubricating oils
    7.
    发明授权
    Procedure for the reprocessing of used lubricating oils 失效
    二手润滑油后处理程序

    公开(公告)号：US4255252A

    公开(公告)日：1981-03-10

    申请号：US23059

    申请日：1979-03-22

    申请人： Helmut Knorre ,  Manfred Langer ,  Gerhard Pohl

    发明人： Helmut Knorre ,  Manfred Langer ,  Gerhard Pohl

    IPC分类号： C10G19/073 ,  C10M175/00 ,  C10M11/00

    CPC分类号： C10M175/0016

    摘要： A method for reprocessing used lubricating oils is disclosed wherein the oil is dried, treated with finely dispersed sodium metal at elevated temperature, the remaining free or organically bound metal is decomposed by means of an active hydrogen containing compounds, followed by distillation of the oil for recovery.

    摘要翻译： 公开了一种用于后处理使用的润滑油的方法，其中油被干燥，在高温下用细分散的金属钠处理，剩余的游离或有机结合的金属通过含活性氢的化合物分解，随后蒸馏用于 复苏。

    Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
    8.
    发明授权
    Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof 失效
    防止结块并获得碱性氯化物及其盐混合物的流动性的方法

    公开(公告)号：US4107274A

    公开(公告)日：1978-08-15

    申请号：US792471

    申请日：1977-04-29

    申请人： Helmut Knorre ,  Joachim Fischer ,  Gerhard Pohl

    发明人： Helmut Knorre ,  Joachim Fischer ,  Gerhard Pohl

    IPC分类号： B01J2/30 ,  C01D3/26

    CPC分类号： B01J2/30 ,  C01D3/26

    摘要： Caking of industrial alkali metal chlorides and mixtures containing them in storage is prevented and a flowable product is obtained by adding a hydrophilic and/or a hydrophobic material, in combination with a complex iron cyanide, on a hydroxyl group containing carrier to produce a permanent moisture content of at least 0.01 weight percent of water on the salt.

    摘要翻译： 防止工业碱金属氯化物和含有它们的混合物在储存中结块，并通过在含羟基的载体上加入亲水和/或疏水材料与复合铁氰化物组合来获得可流动的产物，以产生永久性水分 含盐量至少为0.01重量％的水。

    Process for the leaching of gold and silver with cyanidic leaching solution and controlled addition of hydrogen peroxide
    9.
    发明授权
    Process for the leaching of gold and silver with cyanidic leaching solution and controlled addition of hydrogen peroxide 失效
    用氰化浸出溶液浸出金和银的过程，控制加入过氧化氢

    公开(公告)号：US5275791A

    公开(公告)日：1994-01-04

    申请号：US899060

    申请日：1992-06-16

    申请人： Helmut Knorre ,  Andrew Griffiths ,  Juergen Loroesch ,  Joachim Fischer

    发明人： Helmut Knorre ,  Andrew Griffiths ,  Juergen Loroesch ,  Joachim Fischer

    IPC分类号： C22B11/08 ,  C01G5/00 ,  C01G7/00

    CPC分类号： C22B11/08

    摘要： A process is described for leaching gold and/or silver from ores or ore concentrates using an aqueous alkaline cyanide solution with addition of hydrogen peroxide. The addition of the aqueous H.sub.2 O.sub.2 solution is regulated and controlled through the concentration of the oxygen dissolved in the leaching solution, the leaching solution containing from 2 to 20 mg O.sub.2 and preferably from 7 to 13 mg O.sub.2 per liter. 0.5 to 5% by weight H.sub.2 O.sub.2 solutions are preferably added. The process is applicable both to leaching by agitation and to heap leaching, the addition of H.sub.2 O.sub.2 being regulated and controlled through measurement of the O.sub.2 concentration in the leaching solution and can also involve measurement in a measuring stream. Despite low consumptions of H.sub.2 O.sub.2 and NaCN, the gold yield is even increased in some cases and the leaching time shortened.

    摘要翻译： 描述了一种使用加入过氧化氢的碱性氰化物水溶液从矿石或精矿中浸出金和/或银的方法。 通过溶解在浸出溶液中的氧浓度调节和控制H 2 O 2水溶液的添加，浸出溶液含有2至20mg O 2，优选7至13mg O 2 /升。 优选加入0.5-5重量％的H 2 O 2溶液。 该方法适用于通过搅拌和堆浸浸出，通过测量浸出溶液中的O 2浓度来调节和控制H 2 O 2的添加，并且还可以涉及测量流中的测量。 尽管H2O2和NaCN的消耗量很低，但在某些情况下，金的产量甚至增加，浸出时间缩短。

    Cost effective process for detoxification of cyanide-containing effluents
    10.
    发明授权
    Cost effective process for detoxification of cyanide-containing effluents 失效
    对含氰化物污水进行解毒的成本有效的方法

    公开(公告)号：US5178775A

    公开(公告)日：1993-01-12

    申请号：US669581

    申请日：1990-12-17

    申请人： M. Q. Ahsan ,  Stephen Gos ,  Helmut Knorre ,  Roy Norcross ,  Friedrich W. Merz

    发明人： M. Q. Ahsan ,  Stephen Gos ,  Helmut Knorre ,  Roy Norcross ,  Friedrich W. Merz

    IPC分类号： C02F1/72 ,  C02F9/00

    CPC分类号： C02F1/725 ,  C02F1/722 ,  C02F2101/18 ,  Y10S210/904

    摘要： This invention pertains to a method of treating cyanide contained in wastewater with particularly high levels of solids in the stream. The process involves either simultaneous or step-wise dosage of hydrogen peroxide in the form of an aqueous solution of a concentration between 35% to 90% by weight, preferably at least 50% by weight, and SO.sub.2 either in the form of gaseous SO.sub.2 or solution of sodium and/or potassium sulfite or metabisulfite resulting in the conversion of cyanide ions to non-toxic cyanate ions.

    摘要翻译： 本发明涉及在流中处理含有特别高固体含量的废水中处理氰化物的方法。 该方法包括以浓度为35重量％至90重量％，优选至少50重量％的浓度的水溶液的形式的同时或逐步剂量的过氧化氢，SO 2为气态SO 2或 亚硫酸钠和/或亚硫酸钾或焦亚硫酸钾的溶液，导致氰离子转化为无毒的氰酸根离子。