FR2288728B3 - - Google Patents
Info
- Publication number
- FR2288728B3 FR2288728B3 FR7532107A FR7532107A FR2288728B3 FR 2288728 B3 FR2288728 B3 FR 2288728B3 FR 7532107 A FR7532107 A FR 7532107A FR 7532107 A FR7532107 A FR 7532107A FR 2288728 B3 FR2288728 B3 FR 2288728B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
- B01D71/421—Polyacrylonitrile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
- B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/30—Cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/14—Membrane materials having negatively charged functional groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/16—Membrane materials having positively charged functional groups
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742450670 DE2450670A1 (de) | 1974-10-25 | 1974-10-25 | Verfahren zur abtrennung von citrat oder citronensaeure aus fermentationsloesungen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2288728A1 FR2288728A1 (fr) | 1976-05-21 |
FR2288728B3 true FR2288728B3 (fr) | 1980-04-25 |
Family
ID=5929123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7532107A Granted FR2288728A1 (fr) | 1974-10-25 | 1975-10-21 | Procede de separation d'un citrate ou de l'acide citrique d'un liquide de fermentation |
Country Status (9)
Country | Link |
---|---|
US (1) | US4075093A (fr) |
JP (1) | JPS5182218A (fr) |
AT (1) | AT345761B (fr) |
BE (1) | BE834848A (fr) |
DE (1) | DE2450670A1 (fr) |
FR (1) | FR2288728A1 (fr) |
GB (1) | GB1494414A (fr) |
IE (1) | IE41453B1 (fr) |
IT (1) | IT1039890B (fr) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7812340A (nl) * | 1977-12-28 | 1979-07-02 | Sumitomo Chemical Co | Semipermeabel membraan en werkwijze voor het vervaardi- gen daarvan. |
US4476025A (en) * | 1983-05-09 | 1984-10-09 | The United States Of America As Represented By The United States Department Of Energy | Separation of certain carboxylic acids utilizing cation exchange membranes |
DE3328093A1 (de) * | 1983-08-04 | 1985-02-21 | Hoechst Ag, 6230 Frankfurt | Isolierung von durch fermentation erzeugten carbonsaeuren |
DD232723A5 (de) * | 1984-02-03 | 1986-02-05 | ���k�K@���������@����k�� | Verfahren zur gewinnung von citronensaeure |
JPH068434B2 (ja) * | 1984-09-03 | 1994-02-02 | 花王株式会社 | 衣料用洗浄剤組成物 |
US4728429A (en) * | 1985-06-27 | 1988-03-01 | Israel Cabasso | Membrane permeation process for dehydration of organic liquid mixtures using sulfonated ion-exchange polyalkene membranes |
DE3720261A1 (de) * | 1987-06-19 | 1988-12-29 | Henkel Kgaa | Verfahren zur trennung von dicarbonsaeuren |
GB2207618B (en) * | 1987-08-05 | 1991-05-15 | Ciba Geigy Ag | Process for treating aqueous fluids containing organic compounds and salts of polyvalent inorganic acids |
EP0473541A3 (en) * | 1990-08-17 | 1992-05-27 | Ciba-Geigy Ag | Process for enrichment or separation, copolyamide and copolyimidamide and their use |
US5322922A (en) * | 1990-08-17 | 1994-06-21 | Ciba-Geigy Corporation | Copolyamide or copolyimide-amide containing sulfo groups |
US6001255A (en) * | 1993-07-12 | 1999-12-14 | Eyal; Aharon | Process for the production of water-soluble salts of carboxylic and amino acids |
ES2173976T3 (es) * | 1994-09-12 | 2002-11-01 | Aeci Ltd | Procedimiento para recuperar acido citrico. |
US5965028A (en) * | 1994-09-12 | 1999-10-12 | Reilly Industries, Inc. | Process for treating a liquid |
SK279219B6 (sk) * | 1995-10-27 | 1998-08-05 | Likospol | Spôsob koncentračnej purifikácie kyseliny citrónov |
DE19545303C1 (de) * | 1995-12-05 | 1997-04-24 | Metallgesellschaft Ag | Verfahren zur Herstellung einer organischen Säure |
DE10209419A1 (de) * | 2002-03-05 | 2003-09-25 | Celanese Ventures Gmbh | Verfahren zur Herstellung einer Polymerelektrolytmembran und deren Anwendung in Brennstoffzellen |
DE10213540A1 (de) * | 2002-03-06 | 2004-02-19 | Celanese Ventures Gmbh | Lösung aus Vinylphosphonsäure, Verfahren zur Herstellung einer Polymerelektrolytmembran aus Polyvinylphosphaonsäure und deren Anwendung in Brennstoffzellen |
US20050118478A1 (en) * | 2002-03-06 | 2005-06-02 | Joachim Kiefer | Mixture comprising sulphonic acid containing vinyl, polymer electrolyte membrane comprising polyvinylsulphonic acid and the use thereof in fuel cells |
CN1277869C (zh) * | 2002-03-06 | 2006-10-04 | 佩密斯股份有限公司 | 低甲醇渗透性的质子导电电解质膜及其在燃料电池中的应用 |
EP1518282B1 (fr) * | 2002-04-25 | 2010-09-08 | BASF Fuel Cell GmbH | Membrane electrolyte multicouche |
DE10220817A1 (de) * | 2002-05-10 | 2003-11-27 | Celanese Ventures Gmbh | Verfahren zur Herstellung einer gepfropften Polymerelektrolytmembran und deren Anwendung in Brennstoffzellen |
DE10230477A1 (de) * | 2002-07-06 | 2004-01-15 | Celanese Ventures Gmbh | Funktionalisierte Polyazole, Verfahren zu ihrer Herstellung sowie ihre Verwendung |
WO2004015803A1 (fr) * | 2002-08-02 | 2004-02-19 | Pemeas Gmbh | Membrane polymere conductrice de protons comprenant des polymeres a groupes acide sulfonique et application de ladite membrane dans des piles a combustible |
DE10239701A1 (de) * | 2002-08-29 | 2004-03-11 | Celanese Ventures Gmbh | Polymerfolie auf Basis von Polyazolen und deren Verwendung |
DE10246373A1 (de) | 2002-10-04 | 2004-04-15 | Celanese Ventures Gmbh | Protonenleitende Polymermembran umfassend Sulfonsäuregruppen enthaltende Polyazole und deren Anwendung in Brennstoffzellen |
DE10246459A1 (de) * | 2002-10-04 | 2004-04-15 | Celanese Ventures Gmbh | Protonenleitende Polymermembran umfassend Phosphonsäuregruppen enthaltende Polyazole und deren Anwendung in Brennstoffzellen |
EP1652259A2 (fr) * | 2003-07-27 | 2006-05-03 | Pemeas GmbH | Membrane a conduction de protons et utilisation correspondante |
JP4586794B2 (ja) * | 2006-11-07 | 2010-11-24 | トヨタ自動車株式会社 | 固体高分子電解質並びにその製造方法及びこれを用いた燃料電池用膜・電極接合体 |
AU2010217356B2 (en) * | 2009-02-25 | 2017-02-16 | Council Of Scientific & Industrial Research | A polybenzimidazole based membrane for deacidification |
WO2012177133A1 (fr) | 2011-06-24 | 2012-12-27 | Stichting Voor De Technische Wetenschappen | Membranes de polyimide réticulé |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3004904A (en) * | 1955-05-25 | 1961-10-17 | Nalco Chemical Co | Electronegative selective permeable membrane and method of production |
NL269380A (fr) * | 1960-09-19 | |||
US3342729A (en) * | 1964-12-09 | 1967-09-19 | Dow Chemical Co | Permeability separatory cell and apparatus and method of using the same |
IL27218A (en) * | 1966-01-17 | 1970-05-21 | Aerojet General Co | Reverse osmosis and membrane manufacture |
US3544455A (en) * | 1969-06-16 | 1970-12-01 | Pfizer & Co C | Itaconic acid purification process using reverse osmosis |
US3750735A (en) * | 1970-06-16 | 1973-08-07 | Monsanto Co | Removal of water from liquid mixtures containing formaldehyde using a porous polymeric membrane |
US3723309A (en) * | 1971-09-20 | 1973-03-27 | Exxon Production Research Co | System and method for cleaning oily solid material |
-
1974
- 1974-10-25 DE DE19742450670 patent/DE2450670A1/de not_active Withdrawn
-
1975
- 1975-07-17 IT IT25505/75A patent/IT1039890B/it active
- 1975-08-06 GB GB32839/75A patent/GB1494414A/en not_active Expired
- 1975-08-13 JP JP50097683A patent/JPS5182218A/ja active Pending
- 1975-08-19 IE IE1828/75A patent/IE41453B1/en unknown
- 1975-10-21 FR FR7532107A patent/FR2288728A1/fr active Granted
- 1975-10-22 AT AT805375A patent/AT345761B/de not_active IP Right Cessation
- 1975-10-23 US US05/625,140 patent/US4075093A/en not_active Expired - Lifetime
- 1975-10-24 BE BE161232A patent/BE834848A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
IT1039890B (it) | 1979-12-10 |
ATA805375A (de) | 1978-02-15 |
BE834848A (fr) | 1976-02-16 |
FR2288728A1 (fr) | 1976-05-21 |
AT345761B (de) | 1978-10-10 |
JPS5182218A (en) | 1976-07-19 |
IE41453L (en) | 1976-04-25 |
US4075093A (en) | 1978-02-21 |
DE2450670A1 (de) | 1976-04-29 |
GB1494414A (en) | 1977-12-07 |
IE41453B1 (en) | 1980-01-02 |