公开(公告)号：US5232460A

公开(公告)日：1993-08-03

申请号：US729131

申请日：1991-07-12

申请人： Frank K. Botz

发明人： Frank K. Botz

IPC分类号： C23G1/36

CPC分类号： C23G1/36

摘要： A system and process for recycling alkaline aqueous cleaners for electronic components. Such cleaners generally contain saponifiers which react with rosin flux on the electronic components to form rosin soaps. Spent cleaner is concentrated, the pH is lowered to cause a separation between the cleaner and the soils within the cleaner. The cleaner then is filtered to further remove any soils. The filtered cleaner is then reconstituted to a determined concentration and pH level and returned to the cleaning system.

摘要翻译： 用于回收电子部件的碱性水性清洁剂的系统和方法。 这样的清洁剂通常含有与电子部件上的松香助熔剂反应以形成松香皂的皂化剂。 净化剂被浓缩，pH降低，导致清洁剂和清洁剂内的土壤之间分离。 然后将清洁剂过滤以进一步除去任何污垢。 然后将经过滤的清洁剂重构至确定的浓度和pH水平并返回到清洁系统。

公开(公告)号：US5087371A

公开(公告)日：1992-02-11

申请号：US612728

申请日：1990-11-14

申请人： Richard L. Morris ,  James M. Paul

发明人： Richard L. Morris ,  James M. Paul

IPC分类号： B01D61/40 ,  C02F5/12 ,  C02F5/14 ,  C09K8/528 ,  C23G1/36 ,  G21F9/00

CPC分类号： B01D61/40 ,  C02F5/12 ,  C02F5/14 ,  C09K8/528 ,  C23G1/36 ,  G21F9/002

摘要： Barium sulfate scale is dissolved by contacting the scale with an aqueous solvent having a pH of about 8 to about 14, containing a chelating agent comprising a polyaminopolycarboxylic acid or salt of such an acid, and a synergist anion. The aqueous solvent containing the dissolved scale is regenerated by first acidifying the aqueous solvent sufficiently to generate free alkaline earth metal ions. The aqueous solvent is then mixed with a liquid membrane emulsion enveloped around droplets of an internal aqueous phase containing an anion that forms an insoluble precipitate with the free alkaline earth metal ions. The scale-free aqueous solvent is separated from the emulsion by gravity and recovered for reuse.In another embodiment, the internal aqueous phase may contain a chelating agent to remove the free alkaline earth metal ions by forming a stable complex with the ions.

摘要翻译： 通过使水垢与含有约8至约14的pH的水性溶剂接触，使硫酸钡垢溶解，其含有包含聚氨基多羧酸或这种酸的盐的螯合剂和增效剂阴离子。 通过首先使水溶剂充分酸化以产生游离的碱土金属离子，再生含有溶解氧化皮的含水溶剂。 然后将水性溶剂与包围在含有与游离碱土金属离子形成不溶性沉淀物的阴离子的内部水相的液滴周围的液体膜乳液混合。 通过重力将无鳞水溶剂与乳液分离并回收再利用。 在另一个实施方案中，内部水相可以含有螯合剂以通过与离子形成稳定的络合物来除去游离碱土金属离子。

公开(公告)号：US5057290A

公开(公告)日：1991-10-15

申请号：US512935

申请日：1990-04-23

申请人： Joseph C. Peterson ,  George A. Salof

发明人： Joseph C. Peterson ,  George A. Salof

IPC分类号： B01D9/00 ,  C01G49/10 ,  C23G1/36

CPC分类号： C23G1/36 ,  B01D9/0013 ,  C01G49/10

摘要： Processes and apparatus for the closed-loop regeneration of spent hydrochloric acid pickle liquors that have been used to pickle ferrous metals by recovering ferrous chloride from the spent pickle liquors at very low temperatures. The process includes maintaining the hydrochloric acid and iron concentrations within the spent pickle liquor at levels that will prevent the liquor from freezing when cooled to about -10 degrees Fahrenheit and that will permit the formation of ferrous chloride crystals within the spent pickle liquor when the liquor is cooled below about +18 to 20 degrees Fahrenheit and to about -10 degrees Fahrenheit. The ferrous chloride crystals formed at such low temperatures are then removed from the pickle liquor, which then permits reuse of the free hydrochloric acid remaining within the thus regenerated pickle liquor in normal pickling operations.

摘要翻译： 用于通过在非常低的温度下从废腌液中回收氯化亚铜而用于腌制黑色金属的废盐酸酸洗液的闭环再生的方法和设备。 该方法包括将废酸洗液中的盐酸和铁浓度维持在将被冷却至约-10华氏度时防止液体冻结的水平，并且当液体中的液体可以形成氯化亚铁晶体时， 被冷却到大约+18到20华氏度和约-10华氏度之间。 然后在这样低的温度下形成的氯化亚铁晶体从酸洗液中除去，然后允许在正常酸洗操作中重新使用剩余在这样再生的酸洗液中的游离盐酸。

公开(公告)号：US4973380A

公开(公告)日：1990-11-27

申请号：US508509

申请日：1990-02-23

申请人： Michael J. Pryor ,  Andrew J. Brock

发明人： Michael J. Pryor ,  Andrew J. Brock

IPC分类号： C23F1/18 ,  C23F1/46 ,  C23G1/10 ,  C23G1/36 ,  H05K3/38

CPC分类号： C23F1/46 ,  C23F1/18 ,  C23G1/103 ,  C23G1/36 ,  H05K3/382

摘要： A process for etching copper or a copper base material with an aqueous solution consisting essentially of peroxydisulfuric acid, up to about 500 ppm of a halide addition and the balance water is described. The process includes off-line generation/regeneration of the etching solution. An electrochemical cell for generating/regenerating the etching solution is also described.

摘要翻译： 描述了用基本上由过氧化二硫酸组成的水溶液蚀刻铜或铜基材料的方法，至多约500ppm的卤化物添加剂和余量的水。 该方法包括离线生成/再生蚀刻溶液。 还描述了用于产生/再生蚀刻溶液的电化学电池。

公开(公告)号：US4846852A

公开(公告)日：1989-07-11

申请号：US96675

申请日：1987-09-14

申请人： Stefan Schweitzer ,  Ernst Golde ,  Waldemar Mathews

发明人： Stefan Schweitzer ,  Ernst Golde ,  Waldemar Mathews

IPC分类号： D06F43/08 ,  B01D53/04 ,  B01D53/44 ,  B01D53/81 ,  C23G1/36 ,  C23G3/00 ,  H01L21/304

CPC分类号： B01D53/04 ,  B01D2253/108 ,  B01D2257/704 ,  B01D2257/708 ,  B01D2257/80 ,  B01D2259/402

摘要： A method and apparatus for separating and recovering volatile solvents from exhaust air containing volatile solvents and water vapor, the method including passing the exhaust gas alternatively through one of two beds of molecular sieve packings composed of a material capable of adsorbing the water vapors therein and then through one of two beds of molecular sieve packings composed of a material capable of adsorbing the solvent vapors therein. Heated air or inert gas is passed through the beds not being used to adsorb either the water vapor or the solvent vapors so as to regenerate the molecular sieve packings. The air or inert gas containing solvent is passed through a condenser and a drip collector so as to recover the solvent therefrom.

摘要翻译： 一种用于从含有挥发性溶剂和水蒸汽的废气中分离和回收挥发性溶剂的方法和装置，该方法包括使废气交替通过由能够吸附水蒸汽的材料组成的两个分子筛填料床之一，然后 通过由能够吸附其中的溶剂蒸气的材料组成的两个分子筛填料床之一。 加热的空气或惰性气体通过不用于吸附水蒸气或溶剂蒸气的床，以便再生分子筛填料。 将含有空气或惰性气体的溶剂通过冷凝器和滴液收集器从其中回收溶剂。

公开(公告)号：US4728403A

公开(公告)日：1988-03-01

申请号：US865734

申请日：1986-06-11

申请人： Edgar Renzler

发明人： Edgar Renzler

IPC分类号： B01D17/02 ,  C02F1/463 ,  C02F1/465 ,  C23G1/36 ,  C02F1/46

CPC分类号： C23G1/36 ,  B01D17/0205 ,  C02F1/463 ,  C02F1/465

摘要： The invention is relative to a method for the regeneration of neutral to alkaline cleaning and degreasing baths in an electrolysis cell powered by direct current. This method consists essentially in that soaps and emulsified constituents of the baths coagulate and float in a cell with at least one bundle of stable and/or soluble electrodes, whereby the bundle or bundles of stable electrodes comprise(s), if necessary, one or more interposed soluble metal inlays, in a neutral to alkaline range with a current consumption of 0.1 to 4 Ah/dm.sup.3 and a correspondingly predetermined residence time, and solids which are formed are filtered off as necessary. An ultrafiltration or fine filtration of the frothy stage drawn off is connected in afterwards for reclaiming tensides. A device for carrying out this method is also described.

摘要翻译： PCT No.PCT / DE85 / 00264 Sec。 371日期1986年6月11日第 102（e）日期1986年6月11日PCT提交1985年8月6日PCT公布。 出版物WO86 / 01233 日期1986年2月27日。本发明涉及一种由直流电驱动的电解池中的中性至碱性清洗和脱脂浴的再生方法。 该方法基本上由浴中的肥皂和乳化成分凝结并且在至少一束稳定和/或可溶性电极中在电池中浮动，由此，如果需要，稳定电极的束或束包括一个或多个 在中性至碱性范围内更容易插入可溶性金属嵌体，其电流消耗为0.1至4Ah / dm 3，并且相应地预定的停留时间，并根据需要滤出形成的固体。 将抽出的泡沫阶段进行超滤或精细过滤连接，以回收表面活性剂。 还描述了用于执行该方法的装置。

公开(公告)号：US4540435A

公开(公告)日：1985-09-10

申请号：US527311

申请日：1983-08-26

申请人： Jan D. Miller ,  Michael B. Mooiman

发明人： Jan D. Miller ,  Michael B. Mooiman

IPC分类号： B01D11/04 ,  C01G5/00 ,  C01G7/00 ,  C22B3/34 ,  C22B3/38 ,  C23G1/36

CPC分类号： C22B3/0052 ,  C01G5/003 ,  C01G7/003 ,  C22B3/0031 ,  C22B3/0063 ,  C22B3/42 ,  Y02P10/234

摘要： A technique for extracting gold values from an aqueous system containing gold cyanide anions by contact with a strong solvating extractant under basic conditions is disclosed. Useful extractants include organic phosphorus oxides and sulfur oxides.

摘要翻译： 公开了一种在碱性条件下通过与强溶剂萃取剂接触从含有氰化金阴离子的含水体系提取金值的技术。 有用的萃取剂包括有机磷氧化物和硫氧化物。

公开(公告)号：US4526650A

公开(公告)日：1985-07-02

申请号：US572945

申请日：1984-01-23

申请人： Seppo I. Blomquist ,  Markku T. Saarela ,  Hannu J. Pouru ,  Bror G. Nyman ,  Kaj-Henrik Lindroos ,  Timo T. Koivunen ,  Sigmund P. Fugleberg

发明人： Seppo I. Blomquist ,  Markku T. Saarela ,  Hannu J. Pouru ,  Bror G. Nyman ,  Kaj-Henrik Lindroos ,  Timo T. Koivunen ,  Sigmund P. Fugleberg

IPC分类号： C01B7/19 ,  C01B21/46 ,  C01G37/02 ,  C01G49/00 ,  C23G1/36 ,  C23F1/00 ,  B44C1/22 ,  C03C15/00 ,  C03C25/06

CPC分类号： C01G49/00 ,  C01G37/02 ,  C23G1/36 ,  C01P2006/80

摘要： The residual acid mixture containing metals which has been produced in the steel pickling process is regenerated to become new HF/HNO.sub.3 pickling acid by applying H.sub.2 SO.sub.4 addition and evaporation. The metal sulphate salt produced in evaporation is converted into scarcely soluble iron jarosite Na[Fe.sub.3 (SO.sub.4).sub.2 (OH).sub.6 ] and chrome and nickel hydroxide, the last mentioned metal hydroxide being obtained as a separately utilizable precipitate.The metal sulphate salt is separated from 60% H.sub.2 SO.sub.4 solution, wherein the main part of the salt is also crystallized. For promoting the crystallization, part of the salt is crystallized in a side line where 80% H.sub.2 SO.sub.4 concentration is used. The acid slurry produced is carried back to the crystallizing stage in the main line.

摘要翻译： 在钢酸洗工艺中生产的含有金属的残留酸混合物通过加入H 2 SO 4和蒸发而再生成新的HF / HNO 3酸洗酸。 在蒸发中产生的金属硫酸盐转化为几乎不溶的铁黄铁矿Na（Fe 3（SO 4）2（OH）6]和铬和氢氧化镍，最后提到的金属氢氧化物作为可独立使用的沉淀物得到。 将金属硫酸盐与60％H 2 SO 4溶液分离，其中盐的主要部分也结晶。 为了促进结晶，部分盐在使用80％H 2 SO 4浓度的侧线中结晶。 生成的酸性浆料被带回主线中的结晶阶段。

公开(公告)号：US4401531A

公开(公告)日：1983-08-30

申请号：US393947

申请日：1982-06-30

申请人： Daniel Martin San Lorenzo ,  Jose M. Regife Vega ,  Eduardo D. Nogueira

发明人： Daniel Martin San Lorenzo ,  Jose M. Regife Vega ,  Eduardo D. Nogueira

IPC分类号： C01G9/00 ,  C01G9/06 ,  C22B3/00 ,  C22B3/38 ,  C22B19/00 ,  C23G1/36 ,  C25C1/16

CPC分类号： C01G9/003 ,  C01G9/06 ,  C22B19/22 ,  C22B19/26 ,  C22B3/0067 ,  C22B3/0068 ,  Y02P10/234

摘要： The present invention relates to a process for the production of either electrolytic zinc or high purity zinc salts from secondary zinc raw materials which comprises: leaching said raw material in a slightly acid aqueous solution at controlled pH, separating the reaction mixture into a leaching liquor containing the leached zinc and a solid residue which after suitable washing is descarted; directing the zinc-bearing liquor to a solvent extraction facility where it is brought into contact with an organic solution containing organic acids as cationic extraction reagents, by means of which, an ion exchange of zinc by hydrogen ions is achieved, resulting in a zinc loaded organic solution and in an aqueous solution containing the stoichiometric acidity to the extracted zinc; recycling the acid aqueous raffinate to the previous leaching step where it is used as the slightly acid aqueous solution to carry-out the zinc leaching from the raw material; sending the zinc organic extract to a stripping facility where it is brought into contact with a strong acid solution of zinc sulphate, by means of which an ion exchange of zinc by hydrogen ions takes place, thus producing a concentrated solution of zinc sulphate and an organic solution free of zinc, containing the stoichiometric acidity to the stripped zinc, which is recycled back to the previous step to perform the zinc extraction; directing the concentrated zinc sulphate aqueous solution either to an electrowinning facility to produce electrolytic zinc, or to a crystallization plant for the production of pure zinc sulphate; recycling back to the previous step of zinc stripping either the spent electrolyte from the electrowinning facility or the mother liquors from the crystallization plant to form, after suitable sulphuric acid make-up, the strong acid solution of zinc sulphate, by means of which zinc stripping from the organic extract is achieved.

公开(公告)号：US4333485A

公开(公告)日：1982-06-08

申请号：US165025

申请日：1980-07-01

申请人： Tom O. B. Karlsson ,  Hans M. Larsson

发明人： Tom O. B. Karlsson ,  Hans M. Larsson

IPC分类号： B08B3/12 ,  C23G1/36 ,  D06F19/00 ,  D06F31/00 ,  D06F39/10

CPC分类号： D06F19/00 ,  C23G1/36 ,  D06F31/00 ,  D06F39/10

摘要： The invention relates to a cleaning system in which, during the cleaning procedure, the articles have to pass a plurality of treatment stations in a direction which is opposite to that in which the flow of the cleaning liquid is established. From the first and most contaminated of the treatment stations, the cleaning liquid is removed and supplied to an ultrafilter. At least part of the outflow from this filter is returned to one of the latest or to the last treatment station. Ultrasonic energy is used to increase the efficiency of at least one of the stations. Ambient heat and vapor loss are recaptured.

摘要翻译： 本发明涉及一种清洁系统，其中在清洁过程期间，物品必须沿与建立清洁液体的流动相反的方向通过多个处理站。 从处理站的第一个也是最受污染的地方，清洗液被去除并提供给超滤器。 该过滤器的至少一部分流出物返回到最新或最后一个治疗站之一。 使用超声波能量来提高至少一个站的效率。 环境热和蒸汽损失被重新捕获。