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公开(公告)号：US3853758A
公开(公告)日：1974-12-10
申请号：US37541373
申请日：1973-07-02
Applicant: ROHM & HAAS
Abstract: Effluents from dye manufacturing and dyeing operations which contain waste dyestuffs are decolorized and their oxygen demand substantially reduced by passing at least a major part of the effluent through a bed of essentially non-ionogenic, macroreticular, water-insoluble, cross-linked polymeric adsorbent resin followed by contacting the partially decolorized effluent with a weak acid and/or aliphatic weak base ion exchange resin.
Abstract translation: 来自含有废染料的染料制造和染色操作的污染物被脱色，并且通过将至少大部分流出物通过基本上非离子型，大网络，水不溶性的交联聚合物吸附树脂床 然后使部分脱色的流出物与弱酸和/或脂肪族弱碱离子交换树脂接触。
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公开(公告)号：US3711401A
公开(公告)日：1973-01-16
申请号：US3711401D
申请日：1971-03-08
Applicant: SYBRON CORP
Inventor： HAMILTON R , KINGSBURY A , ANDERSON J
Abstract: Ion exchange columns containing a layer of weak resin and a layer of strong resin are regenerated by passing partially spent regenerant through the column to regenerate the weak resin and then passing fresh regenerant through the column to regenerate the strong resin. Efficient regeneration is achieved in a downflow regeneration process and silica and calcium sulphate precipitation problems are reduced. In some cases, it is desirable to soak the strong resin in regenerant after the weak regenerant as been passed through the column in order to improve separation of the resins, shorten the total regeneration time and remove additional silica ions. The processes are preferably practiced on systems of three or more columns in which the columns are sequentially exhausted and regenerated, with at least two columns being regenerated in series.
Abstract translation: 含有弱树脂层和强树脂的离子交换柱通过部分废旧再生剂通过柱再生，再生弱树脂，然后通过新鲜再生剂通过柱再生强树脂。 在下流再生过程中实现有效再生，二氧化硅和硫酸钙沉淀问题减少。 在一些情况下，为了改善树脂的分离，缩短总再生时间，除去附加的二氧化硅离子，希望在弱再生剂通过柱后，将强树脂浸渍在再生剂中。 这些方法优选在三个或更多个柱的系统上实施，其中柱依次耗尽和再生，其中至少两个柱被串联再生。
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公开(公告)号：US3618589A
公开(公告)日：1971-11-09
申请号：US3618589D
申请日：1970-03-16
Applicant: SYBRON CORP
Inventor： TAVANI LORENZO
Abstract: A method for demineralizing fluids comprising contacting the fluid to be treated with a first bed of strong base anion resin in the bicarbonate form, contacting said fluid with a weak acid and strong acid cation resin and finally contacting the fluid with a weak base anion resin. The anion resins are regenerated by passing aqueous bicarbonate solution through the strong base resin, the effluent therefrom is passed through the weak base resin. The cation resins are regenerated by passing a mineral acid solution through the strong acid resin and the effluent therefrom is passed through the weak acid resin.
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34.发明授权Process for obtaining complete softening of waters where hardness exceeds alkalinity 失效获得完整水分的方法，其中硬度超过碱性
公开(公告)号：US3423311A
公开(公告)日：1969-01-21
申请号：US3423311D
申请日：1966-03-29
Applicant: ROHM & HAAS , DU PONT
Inventor： HETHERINGTON RICHARD , FOLEY JOSEPH
CPC classification number: B01J39/07
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35.发明授权Method for treating high hardness water having major amounts of sodium therein 失效用于处理其中具有大量钠的高硬度水的方法
公开(公告)号：US3414507A
公开(公告)日：1968-12-03
申请号：US48361265
申请日：1965-08-30
Applicant: RITTER PFAUDLER CORP
Inventor： CALVIN CALMON
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Patent Agency Ranking36.发明授权Process of selectively recovering metal ions from solutions containing same 失效从含有它们的溶液中选择性地回收金属离子的方法
公开(公告)号：US3305306A
公开(公告)日：1967-02-21
申请号：US27250263
申请日：1963-04-02
Applicant: BENCKISER GMBH JOH A
Inventor： HANS-GEORG MORAWE , HELMUT RUECKERT , FERDINAND FURRER
CPC classification number: D01F13/02 , B01J39/07 , Y02P70/627
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公开(公告)号：US3147245A
公开(公告)日：1964-09-01
申请号：US8685661
申请日：1961-02-03
Applicant: ROHM & HAAS
Inventor： ROBERT KUNIN
IPC: B01D15/08 , B01J39/04 , C07D453/04 , C07H1/06
CPC classification number: A61K31/70 , B01D15/362 , B01J39/07 , C07D453/04 , C07H1/06
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公开(公告)号：US2409861A
公开(公告)日：1946-10-22
申请号：US42930342
申请日：1942-02-02
Applicant: DOW CHEMICAL CO
Inventor： HUNTER MELVIN J , BAUMAN WILLIAM C
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公开(公告)号：US12084544B2
公开(公告)日：2024-09-10
申请号：US17269228
申请日：2019-08-16
Applicant: The Regents of the University of California
Inventor： Brett A. Helms , Swagat Sahu , Miranda J. Baran , Miles N. Braten , Mark E. Carrington , Stephen M. Meckler
IPC: C08G65/48 , B01D67/00 , B01D69/02 , B01D71/52 , B01J39/07 , B01J39/19 , C07C215/64 , C07D211/46 , C07D295/135 , C07D295/205 , C08G65/40 , H01M10/24 , H01M50/403 , H01M50/414 , H01M50/491
CPC classification number: C08G65/48 , B01D67/00091 , B01D69/02 , B01D71/5211 , B01J39/07 , B01J39/19 , C07C215/64 , C07D211/46 , C07D295/135 , C07D295/205 , C08G65/4006 , H01M10/24 , H01M50/403 , H01M50/414 , H01M50/491 , B01D2325/02831 , H01M2300/0014
Abstract: The present disclosure is directed to microporous ladder polymers containing amine-functionalized monomer segments, amidoxime-functionalized monomer segments, or a combination thereof. Monomer compounds for preparation of the polymers are also described, as well as membranes and electrochemical cells containing the polymers.
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公开(公告)号：US20240092647A1
公开(公告)日：2024-03-21
申请号：US18517249
申请日：2023-11-22
Applicant: Reed Advanced Materials Pty Ltd.
Inventor： Yatendra Sharma
IPC: C01D15/08 , B01D9/00 , B01D61/02 , B01J39/07 , B01J47/026 , C02F1/42 , C02F1/44 , C22B26/12 , C25B1/16
CPC classification number: C01D15/08 , B01D9/0022 , B01D61/027 , B01J39/07 , B01J47/026 , C02F1/42 , C02F1/442 , C22B26/12 , C25B1/16 , C01P2006/40 , C02F2101/101
Abstract: A method (10) for the processing of lithium containing brines, the method comprising the method steps of:
(i) Passing a lithium containing brine (12) to a filtration step (14) to remove sulphates;
(ii) Passing a product (16) of step (i) to a first ion exchange step (18) to remove divalent impurities;
(iii) Passing a product (20) of step (ii) to a second ion exchange step (22) to remove boron impurities;
(iv) Passing a product (24) of step (iii) to an electrolysis step (26) to produce lithium hydroxide (28); and
(v) Passing a product (30) of step (iv) to a crystallisation step (32) that in turn provides a lithium hydroxide monohydrate product (34).
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