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
Application number
FR7532107A
Other versions
FR2288728A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joh A Benckiser GmbH
Original Assignee
Joh A Benckiser GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Joh A Benckiser GmbH filed Critical Joh A Benckiser GmbH
Publication of FR2288728A1 publication Critical patent/FR2288728A1/fr
Application granted granted Critical
Publication of FR2288728B3 publication Critical patent/FR2288728B3/fr
Granted legal-status Critical Current

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)
FR7532107A 1974-10-25 1975-10-21 Procede de separation d'un citrate ou de l'acide citrique d'un liquide de fermentation Granted FR2288728A1 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

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