公开(公告)号：US4081369A

公开(公告)日：1978-03-28

申请号：US668128

申请日：1976-03-18

申请人： Norman N. Edison Li ,  Robert P. Cahn ,  Adam L. Shrier

发明人： Norman N. Edison Li ,  Robert P. Cahn ,  Adam L. Shrier

IPC分类号： B01D61/40 ,  C10G21/00 ,  B01D13/00 ,  C02B1/46

CPC分类号： C10G21/00 ,  B01D61/40 ,  Y10S210/915

摘要： The instant invention relates to an improvement in the liquid membrane process for removing soluble materials from solution. More specifically, in a process wherein soluble materials are removed from solution by contacting said solution with an emulsion, the external phase of which is immiscible with said solution and permeable to said soluble materials and the internal phase contains a reactant which reacts with said soluble material and converts said soluble material to a material which is insoluble and thus trapped in the internal phase, the improvement which comprises maintaining the concentration of said reactant in the internal phase of the emulsion at a level at which the concentration of said soluble material in the internal phase of the emulsion is less than the concentration to which it is desirable to lower said soluble material in said solution. Preferably the solution is aqueous and said soluble material is a salt. In a preferred embodiment of the instant invention the concentration of fluoride ion in an aqueous solution is lowered to less than 6 ppm by contacting said solution with an emulsion containing a soluble calcium salt in the internal phase. The concentration of calcium in said internal phase is maintained at a level sufficient to provide a concentration of less than 6 ppm soluble fluoride ion in said internal phase.

摘要翻译： 本发明涉及用于从溶液中除去可溶性材料的液膜方法的改进。 更具体地说，在通过使所述溶液与乳液接触而从溶液中除去可溶性物质的方法中，其外相与所述溶液不混溶并且对所述可溶物质是可渗透的，内相含有与所述可溶物质反应的反应物 并将所述可溶性材料转化为不溶性且因此被捕获在内相中的材料，其改进包括将乳液内相中的所述反应物的浓度保持在内部的所述可溶物质的浓度的水平 乳液的相位小于期望降低所述溶液中的所述可溶物质的浓度。 优选地，溶液是水溶液，并且所述可溶性材料是盐。 在本发明的优选实施方案中，通过使所述溶液与在内相中含有可溶性钙盐的乳液接触将水溶液中氟离子的浓度降低至小于6ppm。 所述内相中钙的浓度保持在足以在所述内相中提供小于6ppm可溶性氟离子浓度的水平。

公开(公告)号：US3725259A

公开(公告)日：1973-04-03

申请号：US3725259D

申请日：1970-12-04

申请人： AEROJET GENERAL CO

发明人： DE PREE D

IPC分类号： B01D15/04 ,  B01J49/00 ,  C02F1/42 ,  C02F9/00 ,  C02B1/46 ,  C02B1/76

CPC分类号： C02F9/00 ,  B01J49/53 ,  C02F2101/20 ,  C22B3/42 ,  Y02P10/234

摘要： THIS PATENT DESCRIBES A METHOD FOR THE REMOVAL OF GROUP IB, IIB, III, IV, V, VI, VII AND VIII METAL SALTS FROM ACIDIC WASTE STREAMS SUCH AS ACID MINE DRAINAGE, PICKLING WASTE, AND ELECTROPLATING WASTE WHEREIN THE WASTE STREAM IS HIGHLY ACIDIC AND CONTAINS THESE METAL SALTS AS POLLUTANTS WHICH COMPRISES: CONTACTING SAID STREAM IN COUNTERCURRENT FASHION WITH A CATION EXCHANGE BED CONTAINING A MODERATELY STRONG OR WEAKLY ACIDIC CATION EXCHANGE RESIN TO DEPOSIT METAL IONS FROM SAID SALTS THEREON, NEUTRALIZING THE ACIDIC EFFLUENT FROM THE CATION EXCHANGE RESIN TO PROVIDE ANEUTRAL EFFLUENT, AND REGENERATING SAID CATION ION EXCHANGE RESIN WITH A SOLUTION OF A CHELATING AGENT.

摘要翻译： 1375845离子交换AEROJET-GENERAL CORP 6月19日[1970年12月4日] 56443/71标题B1J [也在C1部分]从酸性废物流中除去一种或多种Ib，IIb，III至VIII族Ib族金属的方法 含有一种或多种所述金属盐形式的酸性矿，酸洗或电镀废物，包括使废物与pK为7.0至3.0的酸性阳离子交换树脂接触以沉积树脂中的金属离子，中和（ 例如与Ca（OH）2，CaCO 3）来自阳离子交换树脂的酸性流出物，并用螯合剂的溶液再生树脂。 螯合剂可以是螯合物。 在用树脂处理之前，可以用Ca（OH）2或CaCO 3将废物调节至pH为3-5。 树脂可以由甲基丙烯酸或丙烯酸或水杨酸/甲醛制备。 树脂再生溶液可以包括乙醇，1苯基丁烷-1,3-二酮，二苯甲酰甲烷，2乙酰基环己酮或其烷基，芳基或卤代衍生物或其碱金属或碱土金属螯合物（如CH 3 OH），醚，聚醚和/ 或烃。 所使用的再生溶液可以通过使用碱和如果需要的二氧化碳再生，由此形成金属氢氧化物或碳酸盐。 酸性废物与树脂与树脂和再生溶液之间的接触可以以现在的方式进行。

公开(公告)号：US3597351A

公开(公告)日：1971-08-03

申请号：US3597351D

申请日：1968-09-27

申请人： MONSANTO CO

发明人： LANDENBURG KURT ,  WEINRICH BERNARD W ,  JOHNSON JOHN H

IPC分类号： C02F1/28 ,  C12H1/04 ,  C02B1/46

CPC分类号： C02F1/28 ,  C12H1/0432

摘要： PROCESS FOR SORPTION REMOVAL AND OPTIONAL RECOVERY OF PHENOLIC AND/OR METAL CONTAMINATION FROM AQUEOUS MEDIA BROADLY. PROVIDES PURIFIED EFFLUENT SSTREAMS AND RECOVERY OF POTENTIALLY VALUABLE COMPONENTS. PROCESS INVOLVES SPECIFIC SORPTION OF SAID CONTAMINANTS ON INSOLUBLE BASIC POLYMER PRODUCTS, FOLLOWED BY REMOVAL FROM AQUEOUS MEDIA AS BY FILTRATION, AND PERMITS SUBSEQUENT RECOVERY OF SORBED COMPONENTS BY ELUTION IF DESIRED. PROCESS HAS DIVERSE UTILITY, INCLUDING TREATMENT OF BEVERAGES TO IMPROVE QUALITY, TREATMENT OF LEATHER INDUSTRY WASTE FOR SORPTION INCLUDING OPTIONAL RECOVERY FOR REUSE OF TANNIS, TREATMENT OF PAPERMILL WASTE WATER FOR SORPTION OF TANNIS, ET CETERA, WITH CONCURRENT ALLEVIATION OF WASTE-DISPOSAL PROBLEMS WHERE SUCH EXIST.

公开(公告)号：US3501402A

公开(公告)日：1970-03-17

申请号：US3501402D

申请日：1968-10-23

申请人： FOREMOST MCKESSON

发明人： CONSOLE ORTHA M

IPC分类号： B01J47/14 ,  C02B1/16 ,  C02B1/46 ,  C02B7/00

CPC分类号： B01J47/15

公开(公告)号：US4144190A

公开(公告)日：1979-03-13

申请号：US810838

申请日：1977-06-28

申请人： Quentin Bowes ,  Jaroslav Haase ,  Rudolf F. Wurster

发明人： Quentin Bowes ,  Jaroslav Haase ,  Rudolf F. Wurster

IPC分类号： C08F8/00 ,  B01J20/22 ,  B01J45/00 ,  C02F1/28 ,  C08B37/00 ,  C08F8/32 ,  C08G81/00 ,  C08L1/00 ,  C02B1/46 ,  C02B1/52

CPC分类号： C02F1/286 ,  B01J20/22 ,  C02F1/28 ,  C08L1/00

摘要： A polysaccharide-containing adsorbent for the removal of heavy metal ions from an effluent which adsorbent has been manufactured from(1) a polysaccharide-containing material,(2) a basic, nitrogen-containing polymer which can be acylated,(3) a crosslinking compound, which is different from component (4), containing at least two reactive substituents and, optionally,(4) an aliphatic or araliphatic carboxylic acid containing a mobile substituent or a multiple bond which is capable of undergoing addition.

摘要翻译： 一种用于从流出物中除去重金属离子的多糖吸附剂，该吸附剂已由（1）含多糖包含材料制成，该吸附剂可由（2）可以被处理的基本含氮聚合物制成，（3）交联 包含至少两个反应性替代物的组分（4）的化合物，以及（4）包含移动替代物或可加入添加剂的多种粘合剂的脂肪酸或阿拉伯糖类羧酸的组合物不同。

公开(公告)号：US3779907A

公开(公告)日：1973-12-18

申请号：US3779907D

申请日：1971-08-25

申请人： EXXON RESEARCH ENGINEERING CO

发明人： SHRIER A ,  LI N ,  CAHN R

IPC分类号： B01D61/40 ,  C02F1/26 ,  C10G21/00 ,  C10G31/11 ,  B01D13/00 ,  C02B1/46 ,  C02B1/60

CPC分类号： C10G21/00 ,  B01D61/40 ,  C02F1/26 ,  C10G31/11 ,  Y10S423/14

摘要： This invention relates to a process for the removal of dissolved species from aqueous solutions, which comprises contacting said aqueous solution with an emulsion, said emulsion comprising an exterior phase which is characterized as being immiscible with said aqueous solution and yet permeable to said dissolved species, and an interior phase which contains a reactant capable of converting said dissolved species to a non-permeable form. The dissolved species permeate the exterior phase, into the interior phase where they are converted into nonpermeable forms and thus retained in the interior phase of said emulsion. The aqueous solution, depleted in said dissolved species, is separated from said emulsion and the emulsion cycled for reuse. In one preferred embodiment said dissolved species are ions, and an ion exchange compound is incorporated in the exterior phase of the emulsion, to promote the permeation of said ions through the exterior phase.

摘要翻译： 本发明涉及从水溶液中除去溶解物质的方法，该方法包括使所述水溶液与乳液接触，所述乳液包含外相，其特征在于与所述水溶液不混溶，并且对所述溶解物质是可渗透的， 以及内部相，其含有能够将所述溶解物质转化成不可渗透形式的反应物。 溶解的物质渗透到外部相中，进入内部相，在那里它们被转化为不透水的形式，因此保留在所述乳液的内部相中。 将所述溶解物质耗尽的水溶液与所述乳液分离，并将乳液循环使用。 在一个优选的实施方案中，所述溶解的物质是离子，并且离子交换化合物被引入到乳液的外部相中，以促进所述离子通过外部相的渗透。

公开(公告)号：US3540860A

公开(公告)日：1970-11-17

申请号：US3540860D

申请日：1967-09-13

申请人： MULTI MINERALS LTD

发明人： COCHRAN LINDEN WAYNE

IPC分类号： B01J39/04 ,  B01J49/00 ,  C01F17/00 ,  C02B1/46

CPC分类号： C01F17/0006 ,  B01J39/05 ,  B01J49/53

公开(公告)号：US3448042A

公开(公告)日：1969-06-03

申请号：US3448042D

申请日：1966-03-28

申请人： DAY & ZIMMERMANN INC

发明人： MATTIA MANLIO M ,  WEISS BERNARD M

IPC分类号： C02F1/28 ,  C02B1/04 ,  C02B1/16 ,  C02B1/46

CPC分类号： C02F1/283

公开(公告)号：US3976604A

公开(公告)日：1976-08-24

申请号：US545277

申请日：1975-01-30

申请人： Earl J. Roberts ,  Stanley P. Rowland

发明人： Earl J. Roberts ,  Stanley P. Rowland

IPC分类号： B01J20/22 ,  B01J39/22 ,  C02F1/28 ,  D06M13/487 ,  C02B1/46 ,  D06M13/48 ,  D06M15/12

CPC分类号： C02F1/288 ,  B01J20/22 ,  B01J39/22 ,  D06M13/487

摘要： An ethylenimine prepolymer has been prepared by mixing certain alkyl halides with ethylenimine in molar ratios of about from 44:1 to 27:1, respectively, and allowing the mixture to stand for not more than about 16 hours.

摘要翻译： 已经通过将某些烷基卤化物与摩尔比分别为约44:1至27:1的乙烯亚胺混合并使混合物静置不超过约16小时来制备乙烯亚胺预聚物。

公开(公告)号：US3961027A

公开(公告)日：1976-06-01

申请号：US407722

申请日：1973-10-18

申请人： Thomas J. Crossley

发明人： Thomas J. Crossley

IPC分类号： C01G43/00 ,  C01F11/22 ,  C02F9/00 ,  C22B60/02 ,  G21F9/10 ,  C01G43/02 ,  C02B1/46

CPC分类号： C22B60/0252 ,  C01F11/22 ,  Y10S210/915

摘要： Waste water containing large amounts of fluorides and ammonia and trace amounts of uranium, as is produced during the hydrolysis and ammonium hydroxide treatment of uranium hexafluoride (UF.sub.6) to produce ammonium diuranate (ADU) therefrom, is rendered suitable for cyclic reuse by initially treating the waste water with sufficient lime to precipitate substantially all of the fluorides present in the waste water to a relatively insoluble CaF.sub.2 precipitate, the treated solution is subjected to distillation to drive off ammonia for reuse in the ADU precipitation, the CaF.sub.2 precipitate is separated from the aqueous distilland leaving water with dissolved calcium, the distilland is treated by a cationic ion-exchange material to remove substantially all of the calcium and other cationic metal impurities and the resulting water containing small amounts of uranium, fluoride and ammonia is recycled to react with UF.sub.6 or to be combined with the ammonium hydroxide distillate and then treated with additional concentrated ammonium hydroxide to form a solution of the desired NH.sub.3 content for use in precipitating ADU. This recycling is most important for ecological reasons, and for cost improvement, as well as health and safety purposes.

摘要翻译： 含有大量氟化物和氨和微量铀的废水，如在六水合铀（UF6）的水解和氢氧化铵处理过程中产生的产生二氢铀酸铵（ADU）的痕量铀，通过最初处理 具有足够石灰的废水将废水中基本上所有的氟化物沉淀成相对不溶的CaF 2沉淀物，将处理过的溶液进行蒸馏除去氨以便在ADU沉淀中重新使用，将CaF 2沉淀物从水溶液 蒸馏出具有溶解的钙的水，蒸馏物通过阳离子交换材料处理以除去基本上所有的钙和其它阳离子金属杂质，并将所得的含有少量铀，氟化物和氨的水再循环到与UF6反应或 与氢氧化铵馏出物结合，然后用地衣处理 浓缩的氢氧化铵以形成用于沉淀ADU的所需NH 3含量的溶液。 这种回收利用对于生态原因以及改善成本以及健康和安全的目的而言是最重要的。