ES8308901A1 - "mejoras introducidas en un procedimiento para la preparacion de una membrana de osmosis inversa". - Google Patents

"mejoras introducidas en un procedimiento para la preparacion de una membrana de osmosis inversa".

Info

Publication number
ES8308901A1
ES8308901A1 ES516206A ES516206A ES8308901A1 ES 8308901 A1 ES8308901 A1 ES 8308901A1 ES 516206 A ES516206 A ES 516206A ES 516206 A ES516206 A ES 516206A ES 8308901 A1 ES8308901 A1 ES 8308901A1
Authority
ES
Spain
Prior art keywords
reverse osmosis
osmosis membranes
supported reverse
supported
unsized
Prior art date
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
ES516206A
Other languages
English (en)
Other versions
ES516206A0 (es
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of ES8308901A1 publication Critical patent/ES8308901A1/es
Publication of ES516206A0 publication Critical patent/ES516206A0/es
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

PROCEDIMIENTO PARA LA PREPARACION DE UNA MEMBRANA DE OSMOSIS INVERSA. SE APLICA UNA SOLUCION DE UNA POLIAMIDA AROMATICA, UN DISOLVENTE QUE CONTIENE COMO MINIMO ALREDEDOR DE UN 80% DE DIMETILACETAMIDA, Y UNA SAL MODIFICANTE QUE COMPRENDE ALREDEDOR DE 20 A 60% EN PESO, CALCULADO SOBRE EL POLIMERO, DE NITRATO DE LITIO, CLORURO DE LITIO O CLORURO MAGNESICO, SOBRE UN SOPORTE POROSO FORMADO POR UN GENERO TEJIDO DE POLIESTER O POLIAMIDA SIN APRESTO. SE EVAPORA UNA PARTE DE LOS COMPONENTES VOLATILES Y SE COAGULA EL POLIMERO EN LA MEMBRANA RESULTANTE EN UN NO DISOLVENTE DEL POLIMERO.
ES516206A 1981-10-21 1982-10-04 "mejoras introducidas en un procedimiento para la preparacion de una membrana de osmosis inversa". Granted ES516206A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31358881A 1981-10-21 1981-10-21

Publications (2)

Publication Number Publication Date
ES8308901A1 true ES8308901A1 (es) 1983-10-01
ES516206A0 ES516206A0 (es) 1983-10-01

Family

ID=23216324

Family Applications (1)

Application Number Title Priority Date Filing Date
ES516206A Granted ES516206A0 (es) 1981-10-21 1982-10-04 "mejoras introducidas en un procedimiento para la preparacion de una membrana de osmosis inversa".

Country Status (10)

Country Link
EP (1) EP0077691B1 (es)
JP (1) JPS5879506A (es)
AT (1) ATE15609T1 (es)
CA (1) CA1188577A (es)
DE (1) DE3266418D1 (es)
ES (1) ES516206A0 (es)
GR (1) GR76763B (es)
IL (1) IL67033A (es)
PT (1) PT75708B (es)
ZA (1) ZA827677B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595708A (en) * 1984-04-06 1986-06-17 E. I. Du Pont De Nemours And Company Reverse osmosis membrane, casting solution, and processes for making same
US4795559A (en) * 1985-03-29 1989-01-03 Firma Carl Freudenberg Semipermeable membrane support
DE3903098A1 (de) * 1989-02-02 1990-08-16 Hoechst Ag Semipermeable membran aus einer homogen mischbaren polymerlegierung
DE3928934C2 (de) * 1989-08-31 1999-04-29 Sartorius Gmbh Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung
US5076817A (en) * 1990-11-30 1991-12-31 E. I. Du Pont De Nemours And Company Polyamide gas separation membranes and process of using same
TW205513B (es) * 1991-02-28 1993-05-11 Hoechst Ag
US5562826A (en) * 1991-10-26 1996-10-08 Hoechst Aktiengesellschaft Semipermeable, porous, asymmetric polyether amide membranes
DE59208013D1 (de) * 1991-10-26 1997-03-20 Hoechst Ag Semipermeable, poröse, asymmetrische Polyetheramidmembranen
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US6464873B1 (en) 1999-06-15 2002-10-15 Hydranautics Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286850A1 (fr) * 1974-10-02 1976-04-30 Inst Nat Rech Chimique Membranes en polyacrylamide methylole ou en polyacrylamide substitue methylole et leur fabrication
DE2602493A1 (de) * 1975-01-27 1976-07-29 Ramot Plastics Verfahren zur entfernung von harnstoff aus waessrigen loesungen
IT1040274B (it) * 1975-07-30 1979-12-20 Consiglio Nazionale Ricerche Procedimento di preparazione di membrane anisotrope supportate per osmosi inversa a base di poliammidi sintetiche
DE2554922A1 (de) * 1975-12-06 1977-06-16 Bayer Ag Semipermeable membranen aus copolyamiden
DE2554932A1 (de) * 1975-12-06 1977-06-08 Bayer Ag Semipermeable membranen aus copolyamiden
JPS5368682A (en) * 1976-12-01 1978-06-19 Hitachi Ltd Reverse osmotic membrane and its manufacture
JPS5837842B2 (ja) * 1979-06-19 1983-08-19 日東電工株式会社 限外濾過膜の製造方法

Also Published As

Publication number Publication date
CA1188577A (en) 1985-06-11
IL67033A0 (en) 1983-02-23
IL67033A (en) 1985-12-31
EP0077691A1 (en) 1983-04-27
GR76763B (es) 1984-08-31
EP0077691B1 (en) 1985-09-18
PT75708A (en) 1982-11-01
ES516206A0 (es) 1983-10-01
DE3266418D1 (en) 1985-10-24
JPS5879506A (ja) 1983-05-13
ZA827677B (en) 1984-06-27
ATE15609T1 (de) 1985-10-15
PT75708B (en) 1985-06-28

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