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1. 发明申请

WO1993007955A1 ELECTRODIALYTIC WATER SPLITTING PROCESS FOR REMOVING SO2 FROM GASES 审中-公开
标题翻译：从气体中除去二氧化硫的电化学水分离工艺
公开(公告)号：WO1993007955A1
公开(公告)日：1993-04-29
申请号：PCT/US1992008409
申请日：1992-10-02
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , MANI, Krishnamurthy, Nagasubramanian , CHIAO, Yu, Chih , DIPALMA, James, Michael
IPC分类号： B01D53/34
CPC分类号： B01D61/445 , B01D53/501
摘要： The present invention comprises an electrodialytic cell (303) and closed loop process for removing SO2 from SO2 containing gases (310). An aqueous scrubbing medium (315) is used to remove the SO2 from the gas. A two compartment electrodialytic water splitter (303) and a means for stripping (305) is used to isolate the SO2 (323) and regenerate the aqueous scrubbing medium. Use of univalent cation selective membranes, recycling (327) of the acid product to the base loop (319) of the water splitter (303), and a prescrubber (301) allow high concentrations of scrubbing solution to be treated without significant fouling inside the membranes. The above process embodiments may be used either alone or in combination.
摘要翻译：本发明包括电渗析池（303）和用于从含SO 2的气体（310）中除去SO 2的闭环方法。使用含水洗涤介质（315）从气体中除去SO 2。使用两室电渗析水分离器（303）和剥离装置（305）来分离SO2（323）并再生含水洗涤介质。使用一价阳离子选择性膜，将酸产物（327）再循环（327）到分水器（303）的基环（319）和预分离器（301），可以使高浓度的洗涤溶液在内部没有显着的结垢膜。上述方法实施方案可以单独使用或组合使用。

2. 发明申请

WO1990011819A1 METHOD AND APPARATUS TO CONTROL A SALT STREAM TO BE TREATED IN AN ELECTRODIALYTIC WATER SPLITTER 审中-公开
标题翻译：控制电解水分离器中待处理的盐流的方法和装置
公开(公告)号：WO1990011819A1
公开(公告)日：1990-10-18
申请号：PCT/US1990001780
申请日：1990-04-03
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , MANI, Krishnamurthy, Nagasubramanian
IPC分类号： B01D61/44
CPC分类号： B01D61/445 , C23G1/36
摘要： An aqueous salt feed stream (37') is fed to an electrodialysis water splitter (33) and a dilute salt stream (45) is withdrawn from the water splitter (33). The dilute salt stream (45) is fed to an electrodialysis unit (48) comprising a concentration compartment (C) and a diluting compartment (D), at least part of the dilute salt stream (45') being fed to the concentration compartment (C). An electrodialysis product stream (60) is withdrawn from the concentration compartment (C). The product stream (60) and the raw salt stream (37) are controllably combined to form the aqueous feed stream (37'). In accordance with the method of the present invention the salt concentration of the product stream (60) can be maintained below the salt concentration of the raw salt stream (37). The pH of aqueous salt feed stream (37) can be controlled based on the pH of electrodialysis unit product stream (60).
摘要翻译：将盐水进料流（37'）供给到电渗析分水器（33）中，并且从分水器（33）中取出稀盐流（45）。将稀盐物流（45）进料至包含浓缩室（C）和稀释室（D）的电渗析装置（48）中，将至少部分稀盐物流（45'）送入浓缩室 C）。从浓缩室（C）中取出电渗析产物流（60）。可控地将产物流（60）和生盐流（37）组合以形成含水进料流（37'）。根据本发明的方法，可以将产物流（60）的盐浓度保持在生盐流（37）的盐浓度以下。含水盐进料流（37）的pH可以基于电渗析装置产物流（60）的pH来控制。

3. 发明申请

WO1992013630A1 SEPARATION/RECOVERY OF AMMONIUM SALTS VIA ELECTRODIALYTIC WATER SPLITTING 审中-公开
标题翻译：通过电解水分离技术分离/回收阳离子
公开(公告)号：WO1992013630A1
公开(公告)日：1992-08-20
申请号：PCT/US1991000738
申请日：1991-02-01
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , MANI, Krishnamurthy, Nagasubramanian , CHLANDA, Frederick, Paul , CHIA, Yu-Chih
IPC分类号： B01D61/44
CPC分类号： C01C1/24 , B01D61/445
摘要： The present invention is an improved process for electrodialytically generating salts of volatile acids and/or bases from a salt stream. The salt of the volatile base may either be generated from a similar salt, or may be recovered from a mixed salt solution containing the salt of a volatile base and other similar salts. The salt solution is treated in a two or three compartment electrodialytic water splitter. The acid formed in the acid compartment of the electrodialytic unit is neutralized as it is formed by adding the volatile base directly to the acid loop. Neutralization of the acid in the acid loop minimizes the acid concentration in the electrodialytic unit, thereby increasing the efficiency of the membranes, and the cell stack. The electrodialytic unit may be run in either batch or continuous mode.
摘要翻译：本发明是从盐流中电渗析产生挥发性酸和/或碱的盐的改进方法。挥发性碱的盐可以由类似的盐生成，或者可以从含有挥发性碱和其它类似盐的盐的混合盐溶液中回收。盐溶液在两个或三个隔室电渗析水分离器中处理。在电渗析装置的酸性隔室中形成的酸被中和，因为它通过将挥发性碱直接添加到酸性环中形成。酸环路中酸的中和使电渗析单元中的酸浓度最小化，从而提高膜的效率和电池堆。电渗析单元可以分批或连续模式运行。

4. 发明申请

WO1992010278A1 APPARATUS AND METHOD FOR ELECTRODIALYTIC TREATMENT OF SALTS TO PRODUCE ACID AND/OR BASE OF IMPROVED PURITY 审中-公开
标题翻译：用于电解处理生产酸和/或改进的纯度的碱的装置和方法
公开(公告)号：WO1992010278A1
公开(公告)日：1992-06-25
申请号：PCT/US1991008632
申请日：1991-11-19
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , CHLANDA, Frederick, Paul , MANI, Krishnamurthy, Nagasubramanian , CHIAO, Yu-Chih
IPC分类号： B01D61/44
CPC分类号： B01D61/445
摘要： The apparatus comprises an electrodialytic water splitting apparatus comprised of at least one unit cell (UC). Each cell comprises at least two means for splitting water (211b, 211b'). An intermediate compartment (IAC) is between the two adjacent means for splitting water. At least one ion selective means (211a, 211c) is adjacent to at least one of the means for splitting water. An acid (A) or base (B) product compartment is between the ion selective means and the means for splitting water. There is an aqueous salt feed compartment (S), the ion selective means being between the salt feed compartment and the water splitting means.
摘要翻译：该装置包括由至少一个单电池（UC）构成的电渗析水分离装置。每个单元包括至少两个用于分离水（211b，211b'）的装置。中间隔室（IAC）位于两个相邻的水分拆装置之间。至少一个离子选择装置（211a，211c）与用于分离水的装置中的至少一个相邻。酸（A）或碱（B）产品隔室位于离子选择装置和分水装置之间。存在含水盐进料室（S），离子选择装置位于盐进料室和分水装置之间。

5. 发明申请

WO1990006168A1 METHOD FOR PURIFICATION OF ACIDS FROM MATERIALS COMPRISING ACID AND SALT 审中-公开
标题翻译：从包含酸和盐的材料中纯化酸的方法
公开(公告)号：WO1990006168A1
公开(公告)日：1990-06-14
申请号：PCT/US1989005088
申请日：1989-11-17
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , CHIAO, Yu-Chih , CHLANDA, Frederick, Paul , MANI, Krishnamurthy, Nagasubramanian
IPC分类号： B01D61/44
CPC分类号： C23G1/36 , B01D61/445 , C01B7/0706 , C01B17/902 , C01B21/46 , C01B25/18 , C01B35/063 , C01D1/38 , H01M10/54 , Y02W30/84
摘要： A method of separating acid from an aqueous feed stream comprising acid and salt. The method is conducted in an apparatus comprising a bipolar membrane (20) between at least one first anion membrane (30) and at least one second anion membrane (32).

6. 发明申请

WO1990006167A1 METHOD FOR PURIFICATION OF BASES FROM MATERIALS COMPRISING BASE AND SALT 审中-公开
标题翻译：用于从包含基质和盐的材料中纯化基质的方法
公开(公告)号：WO1990006167A1
公开(公告)日：1990-06-14
申请号：PCT/US1989005087
申请日：1989-11-17
申请人： ALLIED-SIGNAL INC.
发明人： ALLIED-SIGNAL INC. , MANI, Krishnamurthy, Nagasubramanian , CHLANDA, Frederick, Paul , CHIAO, Yu-Chih
IPC分类号： B01D61/44
CPC分类号： B01D61/445 , C01D1/38 , H01M10/54 , Y02W30/84
摘要： Method of recovery of base from material comprising base or acid and salt, which is conducted in an apparatus comprising a cation membrane (14) between two bipolar membranes (12a, 12b).
摘要翻译：从包含碱或酸和盐的材料中回收碱的方法，其在包括两个双极膜（12a，12b）之间的阳离子膜（14）的装置中进行。

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