公开(公告)号：US3972810A

公开(公告)日：1976-08-03

申请号：US488630

申请日：1974-07-15

申请人： Randhir C. Chopra

发明人： Randhir C. Chopra

IPC分类号： B01D15/02 ,  B01J47/10 ,  C02B1/42 ,  C02B1/56

CPC分类号： B01J47/10 ,  B01D15/02

摘要： Trivalent chromium, hexavalent chromate, molybdate and zinc are removed from a fluid. The fluid is simultaneously treated with a weak base anion exchange resin and a weak acid cation exchange resin to remove the chromium, chromate, molybdate and/or zinc.

摘要翻译： 从流体中除去三价铬，六价铬酸盐，钼酸盐和锌。 用弱碱阴离子交换树脂和弱酸阳离子交换树脂同时处理流体以除去铬，铬酸盐，钼酸盐和/或锌。

公开(公告)号：US3947351A

公开(公告)日：1976-03-30

申请号：US363494

申请日：1973-05-24

申请人： Tatsuro Asawa ,  Tomoki Gunjima

发明人： Tatsuro Asawa ,  Tomoki Gunjima

IPC分类号： B01D67/00 ,  B01D69/14 ,  C08F255/02 ,  C08F259/02 ,  C08F259/04 ,  C08J5/22 ,  C02B1/56 ,  B01D13/00

CPC分类号： B01D67/0006 ,  B01D61/243 ,  B01D67/0093 ,  B01D69/141 ,  C08F255/02 ,  C08F259/02 ,  C08J5/2287 ,  B01D2323/30 ,  C08J2327/06

摘要： An acid diffusion-dialysis membrane, which can be used for separating an acid from a mixture of an acid and a salt, or a mixture of an acid and a water-soluble organic compound, e.g., glucose, by non-electrolytic dialysis, is prepared by forming a film from the combination of (I) a vinyl group containing benzene monomer or a vinyl group containing pyridine monomer, (II) a non-conjugated divinyl-containing monomer, and (III) a thermoplastic polymer which is swellable or soluble in the monomer mixture, polymerizing said monomer mixture in the film, and then introducing anion exchange groups into the resulting polymerized product. The acid diffusion-dialysis membrane is characterized by a high acid diffusion-dialysis coefficient and a high acid-salt selectivity ratio, and further by a relatively high mechanical strength.

摘要翻译： 可用于通过非电解透析从酸和盐的混合物中分离酸或酸和水溶性有机化合物（例如葡萄糖）的混合物的酸扩散透析膜是 通过由（I）含苯乙烯基的单体或含有乙烯基的吡啶单体，（II）非共轭二乙烯基单体组成的（I）和（III）可溶胀或可溶的热塑性聚合物 在单体混合物中，在膜中聚合所述单体混合物，然后将阴离子交换基团引入所得的聚合产物中。 酸扩散透析膜的特征在于具有高的酸扩散透析系数和高的酸 - 盐选择比，并且还具有较高的机械强度。

公开(公告)号：US3539506A

公开(公告)日：1970-11-10

申请号：US3539506D

申请日：1967-10-31

申请人： STAUFFER CHEMICAL CO

发明人： KANE JACQUELINE C ,  ANGSTADT RICHARD L

IPC分类号： B01D15/04 ,  C01B35/00 ,  B01D15/06 ,  C02B1/56

CPC分类号： C01B35/06 ,  C01B35/10

公开(公告)号：US4196175A

公开(公告)日：1980-04-01

申请号：US960343

申请日：1978-11-13

申请人： Harbo P. Jensen

发明人： Harbo P. Jensen

IPC分类号： C01B17/62 ,  C01B17/00 ,  C02B1/56

CPC分类号： C01B17/62 ,  Y10S210/902

摘要： A process is provided for removing a bisulfite salt from an aqueous solution by chemisorbing the salt onto a macroreticular organic compound containing carbonyl functional groups and regenerating the compound.

摘要翻译： 提供了一种通过将盐化学吸附到含有羰基官能团的大网络有机化合物上并再生该化合物从水溶液中除去亚硫酸氢盐的方法。

公开(公告)号：US4186086A

公开(公告)日：1980-01-29

申请号：US918873

申请日：1978-06-26

申请人： Eldon L. Ward

发明人： Eldon L. Ward

IPC分类号： B01J41/04 ,  B01J41/12 ,  C08G59/50 ,  C02B1/56 ,  C08G59/02

CPC分类号： C08G59/502 ,  B01J41/046 ,  B01J41/12 ,  C08G59/50

摘要： The cured reaction product of a polyalkylenepolyamine and a polyepoxide is useful as a weak base ion exchange resin. For example, the reaction of triethylenetetramine and diglycidyl ether of bisphenol A forms a weak base resin having an excellent total weak base capacity.

摘要翻译： 聚亚烷基多胺和聚环氧化物的固化反应产物可用作弱碱离子交换树脂。 例如，双酚A的三亚乙基四胺和二缩水甘油醚的反应形成具有优异的总弱碱性能的弱碱性树脂。

公开(公告)号：US3985648A

公开(公告)日：1976-10-12

申请号：US483801

申请日：1974-06-27

申请人： Angelo J. Casolo

发明人： Angelo J. Casolo

IPC分类号： B01J39/04 ,  B01J45/00 ,  B01J47/04 ,  C02F9/00 ,  C02B1/42 ,  C02B1/56

CPC分类号： C02F9/00 ,  B01J39/04 ,  B01J45/00 ,  B01J47/04 ,  C02F1/001 ,  C02F1/283 ,  C02F1/66 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2101/105 ,  C02F2101/18 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/22 ,  C02F2301/043 ,  Y10S210/904 ,  Y10S210/906 ,  Y10S210/911 ,  Y10S210/912 ,  Y10S210/913

摘要： A method and system combining filtration and ion-exchange structures for removing contaminants from liquids. In overall concept, contaminated liquid is passed through filtering mediums to remove particulate matter from the incoming contaminated liquid. Organics are removed from the liquid by passage through adsorbent non-ionic type resins. The liquid is then passed through strong acid cation exchange resins, weak base anion exchange resins, weak acid cation exchange resins, and strong base anion exchange resins arranged in a predetermined location in the liquid flow path to provide optimized contaminant removal. One of the optimization techniques is through the pH adjustment of the liquid at predetermined points in the flow path. Additionally, the liquid to be purified is passed through mixed bed polisher resins as well as chelation resins to provide a final substantially contaminant free liquid which is returned to use in a closed loop fashion.

摘要翻译： 一种组合过滤和离子交换结构以从液体中除去污染物的方法和系统。 在总体概念中，污染的液体通过过滤介质以从进入的污染液体中除去颗粒物质。 有机物通过吸附剂非离子型树脂从液体中除去。 然后将液体通过强酸性阳离子交换树脂，弱碱性阴离子交换树脂，弱酸阳离子交换树脂和布置在液体流路中的预定位置的强碱性阴离子交换树脂，以提供优化的污染物去除。 优化技术之一是通过在流路中的预定点处的液体的pH调节。 此外，待纯化的液体通过混合床抛光树脂以及螯合树脂，以提供最终基本上无污染的液体，其返回以闭环方式使用。

公开(公告)号：US4134861A

公开(公告)日：1979-01-16

申请号：US812415

申请日：1977-07-01

申请人： Lubor Roubinek

发明人： Lubor Roubinek

IPC分类号： B01J41/04 ,  B01J41/14 ,  C08F8/32 ,  C02B1/56

CPC分类号： B01J41/14 ,  B01J41/046 ,  C08F8/44 ,  C08F2810/20

摘要： Water swellable ion exchange resins comprising a polymeric matrix and amidine groups are described together with their synthesis. The preferred amidine groups are nitrate selective and methods of selectively removing nitrate from water are also described.

摘要翻译： 包含聚合物基质和脒基团的水溶胀性离子交换树脂与它们的合成一起被描述。 优选的脒基团是硝酸盐选择性的，还描述了从水中选择性除去硝酸盐的方法。

公开(公告)号：US4098873A

公开(公告)日：1978-07-04

申请号：US605307

申请日：1975-08-18

申请人： Clinton Allen Hollingsworth

发明人： Clinton Allen Hollingsworth

IPC分类号： B01J8/20 ,  B01J47/12 ,  C01B7/19 ,  C01F5/28 ,  C01F7/50 ,  C01F11/22 ,  C01B9/08 ,  C02B1/42 ,  C02B1/56

CPC分类号： B01J47/12 ,  B01J8/20 ,  C01B7/192 ,  C01F11/22 ,  C01F5/28 ,  C01F7/50

摘要： A solid, particulate reactant is continuously added to a first zone and a liquid reactant is continuously added to a second zone. A conduit between the zones allows the solid and liquid reactants to pass counter-currently between the zones, the reaction being accomplished on contact between the reactants. During steady state operation, a clear layer is established in each zone above a slurry layer of the particles in solution. The clear layer is withdrawn from the top of each zone and introduced at the bottom thereof causing agitation in the slurry layer which promotes the reaction. The solid reactant is withdrawn from the second zone while the spent liquid reactant is withdrawn from the first zone.

公开(公告)号：US4036751A

公开(公告)日：1977-07-19

申请号：US681781

申请日：1976-04-30

申请人： Nobuhiro Orita ,  Koichi Yabe ,  Akifumi Kawanami

发明人： Nobuhiro Orita ,  Koichi Yabe ,  Akifumi Kawanami

IPC分类号： C25D21/22 ,  B01J39/04 ,  B01J41/04 ,  C02F1/42 ,  B01D15/06 ,  B01J1/09 ,  C02B1/56 ,  C02B1/76

CPC分类号： B01J39/046

摘要： A method of treating water containing chromate by bringing the water-to-be-treated into contact with ion-exchange resins, which comprises: passing the water-to-be-treated through a bed of weakly acidic cation exchange resin in H-form at first; subsequently passing the same water through a bed of weakly basic anion exchange resin in salt form thereby to remove said chromate from the water; introducing an alkali metal hydroxide solution into said weakly basic anion exchange resin bed in the reverse direction relative to the direction of passing of the water thereby to elute chromate; and further introducing an acid solution therein thereby to convert the weakly basic anion exchange resin into salt form.

摘要翻译： 一种通过使被处理水与离子交换树脂接触来处理含铬酸盐的方法，其包括：将待处理的水通过弱酸性阳离子交换树脂床形成H型 首先; 随后将相同的水通过盐碱形式的弱碱性阴离子交换树脂床，从而从水中除去所述铬酸盐; 将碱金属氢氧化物溶液相对于水的通过方向反向引入所述弱碱性阴离子交换树脂床中，从而洗脱铬酸盐; 并进一步在其中引入酸溶液，从而将弱碱性阴离子交换树脂转化为盐形式。

公开(公告)号：US4012318A

公开(公告)日：1977-03-15

申请号：US563729

申请日：1975-03-31

申请人： Toshio Hayashi

发明人： Toshio Hayashi

IPC分类号： B01J39/04 ,  B01J49/00 ,  C02F1/28 ,  C02F1/66 ,  C02F9/00 ,  C25D21/22 ,  C02B1/20 ,  C02B1/42 ,  C02B1/56

CPC分类号： C25D21/22 ,  B01J39/043 ,  B01J49/0017 ,  C02F1/285 ,  C02F1/66 ,  C02F2101/22 ,  C02F2103/16

摘要： A method for the recycle treatment of chromium plating waste water, in the process of treating chromium plating waste water obtained by washing the chromium plated products with ion exchange resins, wherein, for the purposes of improving the rate of recovery of chromic acid, of extending the life of the ion exchange resins, and of preventing the formation of sludge, the chromium plating waste water is adjusted almost to neutrality by the addition of an alkaline substance so as to precipitate the metal components contained therein in the form of hydroxides, which are then removed by filtration; the filtrate so obtained is kept neutral during the subsequent treatment for the removal of alkaline components by adsorption in a pretreatment tower packed with cation exchange resins; the dilute dichromic acid solution so obtained is similarly treated for concentration in an adsorption tower packed with anion exchange resins and a purification tower packed with cation exchange resins so as to recover pure dichromic acid solution, whereas the above pretreatment tower and purification tower are regenerated by treatment with sulfuric acid.

摘要翻译： 在用离子交换树脂洗涤镀铬产品得到的镀铬废水的处理过程中，对镀铬废水进行再循环处理的方法，其中为了提高铬酸的回收率，延伸 离子交换树脂的寿命，并且防止污泥形成，通过添加碱性物质将镀铬废水几乎调节为中性，以使氢氧化物的形式沉淀其中所含的金属组分，其为 然后通过过滤除去; 所得到的滤液在随后的处理中保持中性，通过在填充有阳离子交换树脂的预处理塔中吸附除去碱性组分; 将如此获得的稀二重铬酸溶液类似地处理在装有阴离子交换树脂的吸附塔和填充有阳离子交换树脂的净化塔中的浓度，以回收纯二重铬酸溶液，而上述预处理塔和净化塔由 用硫酸处理。