公开(公告)号：US5362399A

公开(公告)日：1994-11-08

申请号：US998491

申请日：1992-12-30

Applicant: Hans V. Schwarz ,  Erwin Brunner

Inventor： Hans V. Schwarz ,  Erwin Brunner

IPC: B01D15/04 ,  B01J31/08 ,  B01J41/04

CPC classification number: B01J31/08 ,  B01J41/043

Abstract: The invention relates to a process for removing water traces from a liquid phosgene stream in chemical processes which employ a phosgenation step. Water traces are removed from a liquid phosgene stream containing at least 60 weight percent phosgene by contacting the stream with a strongly basic macroreticular anion exchange resin which catalyzes the reaction between phosgene and the water traces.

Abstract translation: 本发明涉及在采用光气化步骤的化学方法中从液体光气流中除去水痕迹的方法。 通过使流与强碱性大网络阴离子交换树脂接触，从含有至少60重量％光气的液体光气流中除去水痕迹，所述强碱性大网络阴离子交换树脂催化光气和水迹之间的反应。

公开(公告)号：US5162084A

公开(公告)日：1992-11-10

申请号：US773387

申请日：1991-10-08

Applicant: Arthur L. Cummings ,  Fred C. Veatch ,  Alfred E. Keller ,  James C. Thompsen ,  Regina A. Severson

Inventor： Arthur L. Cummings ,  Fred C. Veatch ,  Alfred E. Keller ,  James C. Thompsen ,  Regina A. Severson

IPC: C07C213/10 ,  B01D53/14 ,  B01J41/04 ,  B01J49/00 ,  C07C215/08 ,  C07C215/10

CPC classification number: B01J49/0095 ,  B01D53/1412 ,  B01D53/1425 ,  B01J41/043 ,  Y10S423/14

Abstract: Monitoring and controlling the reactivation of an alkanolamine solution containing heat-stable salts of such alkanolamine with stronger acid anions and weaker acid anions by contacting the alkanolamine solution (a) with a strong base anion exchange resin which has a high affinity for stronger acid anions (b) contacting the effluent alkanolamine solution from the strong base anion exchange resin with a second strong base anion exchange resin which has an affinity for weaker acid anions (c) measuring and recording the electrical conductance of the effluent solution from the first mentioned anion exchange resin (d) removing the first mentioned anion exchange resin from service when the conductance of the effluent alkanolamine solution from said resin indicates breakthrough of stronger acid anions in said effluent, (e) measuring and recording the electrical conductance of the effluent alkanolamine solution from the second mentioned anion exchange resin (f) removing the second mentioned anion exchange resin from service when the conductance of the effluent alkanolamine solution from said resin indicates break through of weaker acid anions in said effluent and (g) regenerating the strong base anion exchange resins.

Abstract translation: 通过使链烷醇胺溶液（a）与对强酸性阴离子具有高亲和力的强碱性阴离子交换树脂来监测和控制含有这种链烷醇胺的热稳定盐的链烷醇胺与较强的酸性阴离子和弱酸性阴离子的再活化（ b）将来自强碱性阴离子交换树脂的流出物链烷醇胺溶液与对弱酸阴离子具有亲和力的第二强碱阴离子交换树脂接触;（c）测量和记录来自前述阴离子交换树脂的流出物溶液的电导率 （d）当来自所述树脂的流出物链烷醇胺溶液的电导表示所述流出物中较强的酸性阴离子的穿透时，除去所述第一提及的阴离子交换树脂，（e）测量和记录来自第二个流出物的烷醇胺溶液的电导率 （f）除去第二种阴离子交换树脂 当来自所述树脂的流出物链烷醇胺溶液的电导率表明所述流出物中较弱的酸性阴离子突破时，使用阴离子交换树脂。 还讨论了再生强碱阴离子交换树脂。

公开(公告)号：US5152896A

公开(公告)日：1992-10-06

申请号：US641069

申请日：1991-01-14

Applicant: Michel Mazet ,  Isabelle Rigaudie ,  Daniel Wattiez ,  Roger Chatelin ,  Jean-Francois Combes ,  Louis Gavet

Inventor： Michel Mazet ,  Isabelle Rigaudie ,  Daniel Wattiez ,  Roger Chatelin ,  Jean-Francois Combes ,  Louis Gavet

IPC: B01J41/04 ,  B01J47/12 ,  C02F1/28 ,  C02F1/42

CPC classification number: C02F1/42 ,  B01J41/043 ,  B01J47/12 ,  C02F1/286

Abstract: The invention relates to the use of grafted celluloses, in fibrous form, particularly paper, non-woven web, flock, yarn, woven fabric, comprising quaternary ammonium functions, for eliminating humic substances and nitrates contained in natural water or industrial sewage.The grafted cellulose is for example obtained by radical grafting with the aid of a non-saturated monomer with quaternary ammonium function, particularly quaternized diethyl-amino-ethyl methacrylate.Its capacity is greater than or equal to 0.2 meq/g.

Abstract translation: 本发明涉及使用纤维形式的接枝纤维素，特别是纸，无纺织物，羊群，纱线，包含季铵功能的机织织物，用于消除天然水或工业污水中所含的腐殖质和硝酸盐。 接枝的纤维素例如是借助于具有季铵官能团的非饱和单体，特别是季铵化的二乙基氨基乙基甲基丙烯酸酯通过自由基接枝获得的。 其容量大于或等于0.2meq / g。

公开(公告)号：US5134169A

公开(公告)日：1992-07-28

申请号：US449815

申请日：1989-12-13

Applicant: Brian R. Green ,  Irene Tyc ,  Adriana H. Schwellnus

Inventor： Brian R. Green ,  Irene Tyc ,  Adriana H. Schwellnus

IPC: B01J41/04 ,  B01J41/14

CPC classification number: B01J41/043 ,  B01J41/14

Abstract: A gold selective ion exchange resin and process for the recovery of gold from solutions thereof is described. The resin has a macroporous structure and functional groups selected from alkylamine groups wherein the alkyl chain has between 3 and 6 carbon atoms, preferably tributylamine groups. The functional group content of the resin is from 0,4 mmol/g to 1,8 mmol/g and the water retention capacity is at least 30%. The process for recovering gold involves adsorption thereof onto such resin, optionally directly from a slurry, and elution preferably using a thiourea solution.

Abstract translation: 描述了一种金选择性离子交换树脂和从其溶液中回收金的方法。 树脂具有大孔结构和选自烷基胺基团的官能团，其中烷基链具有3至6个碳原子，优选三丁胺基团。 树脂的官能团含量为0.4mmol / g〜1,8mmol / g，保水量为30％以上。 回收金的过程涉及将其吸附到这种树脂上，任选地直接从浆料中吸收，优选使用硫脲溶液进行洗脱。

公开(公告)号：US5053138A

公开(公告)日：1991-10-01

申请号：US595562

申请日：1990-10-11

Applicant: Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

Inventor： Dietmar Korger ,  Dieter Eichinger ,  Stephan Astegger ,  Karin Weinzierl ,  Johann Manner

IPC: B01D15/04 ,  B01J41/04 ,  D01F2/02 ,  D01F13/02

CPC classification number: B01J41/043 ,  D01F13/02 ,  Y02P70/627

Abstract: There is disclosed a process for purifying aqueous solutions of N-methyl-morpholine N-oxide (NMMO), such as spinning bath solutions incurred in the production of cellulose products, in which process the solutions to be purified are contacted with an anion exchanger and the purified solutions are separated from the anion exchanger. The process is carried out in one step and the anion exchanger, as functional groups, exclusively contains quaternary tetraalkylammonium groups of the formulae--CH.sub.2 --N.sup..sym. (CH.sub.3).sub.3 X.sup..crclbar. or --CH.sub.2 --N.sup..sym. [(CH.sub.3).sub.2 (CH.sub.2 OH)]X.sup..crclbar.wherein X.sup..crclbar. represents the anion of an inorganic or organic acid. After this, the anion exchanger is regenerated with an aqueous acidic solution.

Abstract translation: 公开了一种纯化N-甲基吗啉N-氧化物（NMMO）的水溶液的方法，例如在纤维素产物生产中产生的纺丝浴溶液，其中待纯化的溶液与阴离子交换剂接触， 将纯化的溶液与阴离子交换剂分离。 该方法在一个步骤中进行，阴离子交换剂作为官能团，仅包含式-CH 2 -N（+）（CH 3）3 X（ - ）或-CH 2 -N（+）[（CH 3））的季铵四烷基铵基团 ）2（CH 2 OH）] X（ - ）其中X（ - ）表示无机或有机酸的阴离子。 之后，用酸性水溶液再生阴离子交换剂。

公开(公告)号：US4952320A

公开(公告)日：1990-08-28

申请号：US199996

申请日：1988-05-26

Applicant: Paul Spekman

Inventor： Paul Spekman

IPC: B01J41/04 ,  C23C22/86

CPC classification number: C23C22/86 ,  B01J41/043 ,  B01J41/046

Abstract: A process for removal and recovery of chromium ions (chromate, dichromate, or combinations thereof) from aqueous waste water of surface treatment phosphatizing solutions and for recycling of the treated waste water following replenishment wherein the aqueous waste water is initially partially clarified in a settling tank, with the effluent then being passed through an ion exchange column for removal of substantially all of the chromium ions therefrom. Following treatment in the ion exchange resin column, the chromium-free material is recharged with a supply of fresh chromium ions until the chrome ion content is at the desired level for metal surface treatment. The spent ion exchange resin columns are removed and replaced, as necessary, with the recharge of the resin columns making additional chromium available as a resource.

Abstract translation: 一种从表面处理磷酸盐化溶液的废水中除去和回收铬离子（铬酸盐，重铬酸盐或其组合）的方法，以及在补充后循环处理的废水，其中废水最初在沉淀池中部分澄清 ，然后将流出物通过离子交换柱，以从其中除去基本上所有的铬离子。 在离子交换树脂柱中进行处理之后，用新鲜的铬离子供给无铬材料，直至铬离子含量达到金属表面处理所需的水平。 废弃的离子交换树脂柱根据需要被去除和替换，树脂柱的再充电使得另外的铬作为资源。

公开(公告)号：US4795563A

公开(公告)日：1989-01-03

申请号：US144675

申请日：1988-01-13

Applicant: Peter E. Auchincloss

Inventor： Peter E. Auchincloss

IPC: B01J41/04 ,  C02F1/42 ,  C02F1/28

CPC classification number: B01J41/043 ,  C02F1/42

Abstract: An improved unit for removal of nitrates from water is disclosed, which features a cylindrical tank containing a nitrate-adsorbing resin bed and a dip tube/water distributor assembly. The assembly comprises a dip tube extending from an orifice in the upper portion of the tank to a lower distributor assembly, and an additional backflush tube having an open end disposed near the lower distributor assembly and communicating with an upper distributor located beneath the surface of the resin. A water flow restrictor is provided in the lower distributor assembly, such that when water is passed downwardly through the dip tube in a backflush mode, some of the water is squirted into the additional backflush tube, so that the backflush water flows into the resin bed at both its lower and upper portions. In this way, the resin bed is more effectively regenerated by subsequent supply of a brine solution than if the rinse water were only injected at the lower portion of the resin bed. This improved efficiency allows use of the nitrate-adsorbing resin bed for simultaneous removal of iron from the water stream.

Abstract translation: 公开了一种用于从水中除去硝酸盐的改进单元，其特征在于包含硝酸盐吸附树脂床和浸入管/水分配器组件的圆柱形罐。 组件包括从罐的上部的孔口延伸到下部分配器组件的浸入管，以及附加的反冲洗管，其具有设置在下部分配器组件附近的开口端，并与位于下部分布器表面下方的上部分配器连通 树脂。 在下部分配器组件中设置有一个水流限制器，使得当水以反冲模式向下通过浸入管时，一些水被喷射到附加的反冲洗管中，使得反冲洗水流入树脂床 在其下部和上部。 以这种方式，通过随后的盐水溶液的供给，树脂床比仅在树脂床的下部仅喷射漂洗水时更有效地再生。 这种提高的效率允许使用硝酸盐吸附树脂床同时从水流中除去铁。

公开(公告)号：US4732609A

公开(公告)日：1988-03-22

申请号：US909131

申请日：1986-09-18

Applicant: Carla C. Frey ,  W. Roland Hatch ,  Margaret K. Witte

Inventor： Carla C. Frey ,  W. Roland Hatch ,  Margaret K. Witte

IPC: B01D15/04 ,  C01C3/02 ,  B01D15/00

CPC classification number: C01C3/02 ,  B01J41/043 ,  C22B3/24 ,  C22B3/42 ,  Y02P10/234 ,  Y02P20/582 ,  Y10S204/13 ,  Y10S210/904

Abstract: A process is described for the substantially complete recovery of cyanide reagent and metal forming water soluble metal-cyanide complexes contained in mill effluents and waste waters. The process is comprised of a loading cycle wherein the metal-cyanide complexes are adsorbed onto a basic ion exchange resin and the free cyanide containing column effluent is returned to the mill. The metal ions, which are usually mostly copper, nickel and zinc, and the complexing cyanide are eluted in the subsequent regenerant cycle by an acid solution having controlled pH and controlled redox potential, the latter being measured against the saturated calomel electrode. The preferred oxidant to control the redox potential of the regenerant solution is hydrogen peroxide. The generated hydrogen cyanide is sparged with air, or removed by subatmospheric pressure from the regenerant solution, and dissolved in an alkaline scrubber solution for reuse. The metal ions are recovered from a bleed solution.

Abstract translation: 描述了一种方法，用于基本上完全回收包含在研磨废水和废水中的氰化物试剂和金属形成的水溶性金属氰化物络合物。 该方法由负载循环组成，其中金属 - 氰化物络合物吸附在碱性离子交换树脂上，含游离氰化物的柱流出物返回研磨机。 通常主要是铜，镍和锌的金属离子和络合氰化物在随后的再生循环中通过具有受控的pH和受控的氧化还原电位的酸溶液洗脱，后者是针对饱和甘汞电极测量的。 用于控制再生剂溶液的氧化还原电位的优选氧化剂是过氧化氢。 所产生的氰化氢用空气喷射，或者通过低于大气压从再生剂溶液中除去，并溶解在碱性洗涤器溶液中用于再利用。 从渗出溶液中回收金属离子。

公开(公告)号：US4528101A

公开(公告)日：1985-07-09

申请号：US530975

申请日：1983-09-09

Applicant: Dennis J. Burke ,  Robert D. Moore

Inventor： Dennis J. Burke ,  Robert D. Moore

IPC: B01D15/04 ,  B01J41/04 ,  C01B7/07 ,  B01D15/08

CPC classification number: B01J41/043 ,  C01B7/0737

Abstract: A process for the separation of a mineral acid from a common ion salt comprises a step of flowing a quantity of the mineral acid and salt in aqueous solution onto a strong base common ion form anion exchange resin bed whereon the mineral acid is retarded with respect to the salt. The salt is removed from the anion exchange resin. An interface cut of the mineral acid and the salt is recirculated from a bottom portion to a top portion of the anion exchange resin for further separation. A quantity of water is flowed through the anion exchange resin bed to elute the mineral acid therefrom. A portion of the elutant fluid is recycled to the top of the anion exchange resin bed.

Abstract translation: 将矿物酸与普通离子盐分离的方法包括将一定数量的无机酸和盐在水溶液中流动到强碱性常见离子形式的阴离子交换树脂床上，无机酸相对于 盐。 从阴离子交换树脂中除去盐。 无机酸和盐的界面切口从阴离子交换树脂的底部部分再循环到顶部以进一步分离。 一定量的水流过阴离子交换树脂床，以从其中洗脱无机酸。 一部分洗脱液被循环到阴离子交换树脂床的顶部。

公开(公告)号：US4213859A

公开(公告)日：1980-07-22

申请号：US895057

申请日：1978-04-10

Applicant: Robert Smakman ,  Gerrit H. van den Berg

Inventor： Robert Smakman ,  Gerrit H. van den Berg

IPC: A61M1/22 ,  A61K33/00 ,  A61K47/48 ,  A61M1/14 ,  A61M1/16 ,  A61M1/36 ,  B01J20/32 ,  B01J39/04 ,  B01J39/20 ,  B01D13/00 ,  B01D15/04 ,  B01D31/00

CPC classification number: A61K33/00 ,  A61K47/48184 ,  A61M1/1696 ,  A61M1/3679 ,  B01J39/04 ,  B01J39/043 ,  B01J39/046 ,  B01J39/20 ,  B01J41/043

Abstract: An apparatus for purifying blood has a blood compartment and a clearance compartment separated by a semi-permeable membrane. The apparatus includes a device containing a cation exchange resin charged with metal ions whose phosphates are insoluble in water. Metal salts of iron, aluminium, zirconium, lanthanum, thorium and tin are deposited on a cation exchange material and the charged cation exchange resin is contacted with dialysis liquid. The process of treating blood with the dialysis liquid is also contemplated.

Abstract translation: 用于净化血液的装置具有由半透膜隔开的血液隔室和间隙室。 该装置包括装有磷酸盐不溶于水的金属离子的阳离子交换树脂的装置。 将铁，铝，锆，镧，钍和锡的金属盐沉积在阳离子交换材料上，并将带电阳离子交换树脂与透析液接触。 也可以考虑用透析液处理血液的过程。