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1.发明授权
公开(公告)号：US4830766A
公开(公告)日：1989-05-16
申请号：US919232
申请日：1986-10-15
申请人： Darrell L. Gallup , John W. Jost
发明人： Darrell L. Gallup , John W. Jost
CPC分类号： C02F5/083 , C02F1/70 , Y10S507/927
摘要： The deposition of metal-containing scale, such as iron silicate scale, from a hot aqueous geothermal brine, or the like, is controlled by blending into the brine sufficient reducing agent effective for reducing trivalent iron and manganese cations in a high temperature brine solution to divalent ions to cause an overall decrease in scale deposition, especially of iron silicate scale. Preferably, from 2 to 7 times the stoichiometric amount of reducing agent is used to effect a 70 to 90 percent reduction in the formation of iron silicate scale.
摘要翻译： 通过将有效降低高温盐水溶液中的三价铁锰阳离子的盐水足够的还原剂混合，从热水地热卤水等中沉积含金属垢，如硅酸铁垢， 二价离子导致总体沉积沉积减少，特别是铁硅酸盐垢。 优选地，使用2至7倍的化学计量量的还原剂来使铁硅酸盐垢的形成减少70％至90％。
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公开(公告)号：US4756888A
公开(公告)日：1988-07-12
申请号：US566714
申请日：1983-12-29
申请人： Darrell L. Gallup , John W. Jost
发明人： Darrell L. Gallup , John W. Jost
CPC分类号： C09K8/528 , C22B11/04 , E21B41/02 , Y10S423/19
摘要： A method is disclosed for controlling the deposition of metal-containing scales, such as iron silicate scale, from a hot, aqueous, geothermal brine or the like, without substantial corrosion of brine handling equipment. The brine is contacted with (1) an amount of an acid sufficient to reduce the pH of the brine between 0.1 and 0.5 unit and (2) a greater than stoichiometric amount of a reducing agent for reducing trivalent iron and manganese cations in a high temperature brine solution to divalent ions. An overall decrease in scale deposition, especially of iron silicate scale, is achieved while a silver-rich scale can be recovered from silver-containing brines.
摘要翻译： 公开了一种用于控制来自热的，含水的，地热的盐水等的含金属鳞片如硅酸铁垢的沉积的方法，而没有对盐水处理设备的实质腐蚀。 将盐水与（1）一定量的酸接触，足以将盐水的pH值降低至0.1至0.5单位，和（2）大于化学计量的用于在高温下还原三价铁锰阳离子的还原剂 盐水溶液至二价离子。 实现了规模沉积的整体降低，特别是铁硅酸盐垢的沉积，同时可以从含银盐水回收富含银的氧化皮。
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公开(公告)号：US4500434A
公开(公告)日：1985-02-19
申请号：US446489
申请日：1982-12-02
申请人： John W. Jost , Darrell L. Gallup
发明人： John W. Jost , Darrell L. Gallup
CPC分类号： C02F5/08 , Y10S423/19
摘要： A method for inhibiting the precipitation of a scale, such as an iron silicate scale, from a hot aqueous brine solution, such as a geothermal brine, during production and handling of the brine wherein there is injected into the brine a brine-soluble acid in an amount sufficient to lower the pH of the brine from 0.1 to 0.3 pH units.
摘要翻译： 在盐水的生产和处理过程中，从热水盐水溶液（如地热盐水）中抑制氧化铁鳞片等氧化铁鳞片沉淀的方法，其中向盐水中注入盐水可溶的酸 足以将盐水的pH值从0.1至0.3 pH单位降低的量。
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4.发明授权
公开(公告)号：US5073270A
公开(公告)日：1991-12-17
申请号：US322681
申请日：1989-03-13
申请人： Darrell L. Gallup , John W. Jost
发明人： Darrell L. Gallup , John W. Jost
CPC分类号： C02F1/70 , C02F5/083 , Y10S507/927
摘要： The deposition of metal-containing scale, such as iron silicate scale, from a hot aqueous geothermal brine, or the like, is controlled by blending into the brine sufficient reducing agent effective for reducing trivalent iron and manganese cations in a high temperature brine solution to divalent ions to cause an overall decrease in scale deposition, especially of iron silicate scale. Preferably, from 2 to 7 times the stoichiometric amount of reducing agent is used to effect a 70 to 90 percent reduction in the formation of iron silicate scale.
摘要翻译： 通过将有效降低高温盐水溶液中的三价铁锰阳离子的盐水足够的还原剂混合，从热水地热卤水等中沉积含金属垢，如硅酸铁垢， 二价离子导致总体沉积沉积减少，特别是铁硅酸盐垢。 优选地，使用2至7倍的化学计量量的还原剂来使铁硅酸盐垢的形成减少70％至90％。
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公开(公告)号：US4537684A
公开(公告)日：1985-08-27
申请号：US566484
申请日：1983-12-29
申请人： Darrell L. Gallup , John W. Jost
发明人： Darrell L. Gallup , John W. Jost
IPC分类号： C02F5/08
CPC分类号： C22B11/04 , C02F5/08 , Y10S166/902 , Y10S507/927
摘要： A method is disclosed for controlling the deposition of metal-containing scales, such as iron silicate scale, from a hot, aqueous, geothermal brine or the like, without substantial corrosion of brine handling equipment. The brine is contacted with (1) an amount of an acid sufficient to reduce the pH of the brine between 0.1 and 0.5 unit and (2) a greater than stoichiometric amount of a reducing agent for reducing trivalent iron and manganese cations in a high temperature brine solution to divalent ions. An overall decrease in scale deposition, especially of iron silicate scale, is achieved while a silver-rich scale can be recovered from silver-containing brines.
摘要翻译： 公开了一种用于控制来自热的，含水的，地热的盐水等的含金属鳞片如硅酸铁垢的沉积的方法，而没有对盐水处理设备的实质腐蚀。 将盐水与（1）一定量的酸接触，足以将盐水的pH值降低至0.1至0.5单位，和（2）大于化学计量的用于在高温下还原三价铁锰阳离子的还原剂 盐水溶液至二价离子。 实现了规模沉积的整体降低，特别是铁硅酸盐垢的沉积，同时可以从含银盐水回收富含银的氧化皮。
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公开(公告)号：US4626329A
公开(公告)日：1986-12-02
申请号：US693279
申请日：1985-01-22
摘要： A method for inhibiting corrosion of metal in an electrolytic environment comprises electrically interconnecting the metal with an anode consisting essentially of an alloy of aluminum with a rare earth metal or mixture of rare earth metals, optionally also including zinc, and placing the anode into the environment.
摘要翻译： 一种在电解环境中抑制金属腐蚀的方法包括将金属与主要由铝与稀土金属或稀土金属混合物组成的阳极电化学互连，任选地还包括锌，并将阳极放置在环境中 。
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7.发明授权Process for stabilizing silica-rich geothermal brine to prevent silica scaling 失效用于稳定富二氧化硅的地热盐水以防止二氧化硅结垢的方法
公开(公告)号：US4405463A
公开(公告)日：1983-09-20
申请号：US318127
申请日：1981-11-04
摘要： A process for stabilizing silica-rich geothermal brine to prevent silica scaling comprises selectively providing a supply of ferric ions, allowing the silica-rich brine to combine with the ferric ions to form insoluble, iron-rich siliceous material and separating the insoluble siliceous material from the brine to form a brine having a silica content which is reduced below the saturation level required for substantially scale-free handling of the brine. In one embodiment of the process in which the brine contains sufficient dissolved ferrous ions, the process comprises selectively contacting the brine with an oxidizing agent, preferably by aerating the brine, to oxidize a selected portion of the ferrous ions to ferric ions, which then combine with silica to form the insoluble iron-rich siliceous material. The ferric ion content of an iron-deficient brine may be augmented by adding ferric and/or ferrous ions to the brine. Steam released by flashing the untreated brine may be used to heat the stabilized brine before disposal thereof, so as to increase the silica solubility and reduce the amount of silica required to be removed to prevent scaling.
摘要翻译： 用于稳定富二氧化硅的地热盐水以防止二氧化硅结垢的方法包括选择性地提供铁离子供应，允许富含二氧化硅的盐水与三价铁离子结合以形成不溶性富铁硅质材料，并将不溶性硅质材料从 盐水形成盐水，其二氧化硅含量降低到基本无水处理盐水所需的饱和水平以下。 在其中盐水含有足够溶解的亚铁离子的方法的一个实施方案中，该方法包括选择性地使盐水与氧化剂接触，优选通过使盐水充气，将亚铁离子的选定部分氧化成铁离子，然后将铁离子 用二氧化硅形成不溶性富铁硅质材料。 通过向盐水中加入铁和/或亚铁离子可以增加缺铁盐水的铁离子含量。 通过闪蒸未经处理的盐水释放的蒸汽可用于在处理之前加热稳定的盐水，以便增加二氧化硅溶解度并减少被除去的二氧化硅的量以防止结垢。
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公开(公告)号：US4224151A
公开(公告)日：1980-09-23
申请号：US968480
申请日：1978-12-11
申请人： John W. Jost
发明人： John W. Jost
CPC分类号： C02F1/72
摘要： A method for preventing the deposition of sulfide and/or sulfate scale during the production of a hot two-phase geothermal fluid which contains hydrogen sulfide, barium heavy and/or transition metals, and at least a critical minimum amount of calcium in solution. Gaseous oxygen is injected into the geothermal fluid at a critical rate to selectively oxidize the hydrogen sulfide to intermediate sulfide oxidation products, such as thiosulfates. Thereafter the geothermal fluid is separated into gaseous and liquid phases. Where iron is present in the geothermal fluid, the degree of turbulence induced during the oxidation step is selectively controlled in order to prevent the deposition of iron pyrites.
摘要翻译： 一种用于在生产含有硫化氢，钡重和/或过渡金属的热的两相地热流体和至少在溶液中至少临界的最小量的钙的过程中防止硫化物和/或硫酸盐垢沉积的方法。 将气态氧以临界速率注入地热流体中，以选择性地将硫化氢氧化成中间硫化物氧化产物，例如硫代硫酸盐。 此后，将地热液分离成气相和液相。 在地热流体中存在铁的情况下，选择性地控制在氧化步骤期间引起的湍流程度，以防止铁黄铁矿的沉积。
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