GB1396091A - Semi-permeable membranes - Google Patents

Semi-permeable membranes

Info

Publication number
GB1396091A
GB1396091A GB489771A GB489771A GB1396091A GB 1396091 A GB1396091 A GB 1396091A GB 489771 A GB489771 A GB 489771A GB 489771 A GB489771 A GB 489771A GB 1396091 A GB1396091 A GB 1396091A
Authority
GB
United Kingdom
Prior art keywords
water
copolymer
properties
solvent
feb
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
GB489771A
Other languages
English (en)
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.)
Babcock International Ltd
Original Assignee
Babcock and Wilcox Ltd
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 Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Priority to GB489771A priority Critical patent/GB1396091A/en
Priority to FR7205500A priority patent/FR2125586B1/fr
Priority to DE19722207656 priority patent/DE2207656A1/de
Priority to CH233672A priority patent/CH577837A5/xx
Publication of GB1396091A publication Critical patent/GB1396091A/en
Expired 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
    • B01D71/40—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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
    • 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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/02—Hydrophilization
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/04—Characteristic thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
GB489771A 1971-02-18 1971-02-18 Semi-permeable membranes Expired GB1396091A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB489771A GB1396091A (en) 1971-02-18 1971-02-18 Semi-permeable membranes
FR7205500A FR2125586B1 (enrdf_load_stackoverflow) 1971-02-18 1972-02-18
DE19722207656 DE2207656A1 (de) 1971-02-18 1972-02-18 Verfahren zur Herstellung halbdurchlässiger Membranen
CH233672A CH577837A5 (enrdf_load_stackoverflow) 1971-02-18 1972-02-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB489771A GB1396091A (en) 1971-02-18 1971-02-18 Semi-permeable membranes

Publications (1)

Publication Number Publication Date
GB1396091A true GB1396091A (en) 1975-05-29

Family

ID=9785936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB489771A Expired GB1396091A (en) 1971-02-18 1971-02-18 Semi-permeable membranes

Country Status (4)

Country Link
CH (1) CH577837A5 (enrdf_load_stackoverflow)
DE (1) DE2207656A1 (enrdf_load_stackoverflow)
FR (1) FR2125586B1 (enrdf_load_stackoverflow)
GB (1) GB1396091A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130069A (en) * 1982-08-06 1984-05-31 Foremost Mckesson Whey treatment process and product

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1047997B (it) * 1975-09-11 1980-10-20 Fiat Spa Membrana per osmosi inversa e procedimento per la sua fabbricazione
JPS5938805B2 (ja) * 1979-04-06 1984-09-19 ダイセル化学工業株式会社 選択透過性を有する半透膜の製法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060357B (de) * 1958-10-15 1959-07-02 Dr Alexander Goetz Verfahren und Vorrichtung zur Herstellung von mikroporoesen Filterfilmen
CH407949A (de) * 1960-03-16 1966-02-28 Membranfiltergesellschaft Gmbh Verfahren und Vorrichtung zur Herstellung von Membranfiltern
US3344214A (en) * 1964-03-25 1967-09-26 Univ California Methods of preparing a semipermeable membrane
GB1238180A (enrdf_load_stackoverflow) * 1967-09-21 1971-07-07
US3666508A (en) * 1968-05-22 1972-05-30 Univ California High flux semipermeable cellulosic derivative membranes with dry handling capabilities and their method of preparation
NL171534C (nl) * 1970-06-16 1983-04-18 Monsanto Co Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten.
NL170374C (nl) * 1970-06-16 1982-11-01 Monsanto Co Werkwijze voor het afscheiden van water uit mengsels van water en formaldehyd.
FR2105502A5 (enrdf_load_stackoverflow) * 1970-09-09 1972-04-28 Rhone Poulenc Sa

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130069A (en) * 1982-08-06 1984-05-31 Foremost Mckesson Whey treatment process and product

Also Published As

Publication number Publication date
FR2125586B1 (enrdf_load_stackoverflow) 1977-09-02
CH577837A5 (enrdf_load_stackoverflow) 1976-07-30
DE2207656A1 (de) 1972-09-07
FR2125586A1 (enrdf_load_stackoverflow) 1972-09-29

Similar Documents

Publication Publication Date Title
US5039420A (en) Hydrophilic semipermeable membranes based on copolymers of acrylonitrile and hydroxyalkyl esters of (meth) acrylic acid
FR2360623B1 (enrdf_load_stackoverflow)
SE7501222L (enrdf_load_stackoverflow)
DE3582117D1 (de) Membranen.
GB1121119A (en) Improvements in nylon membrane filters
KR890001615A (ko) 그래이드 밀도 피층을 갖는 비대칭성 기체 분리막의 제조방법 및 고점성 원액
GB1467827A (en) Semipermeable membrane and process for the preparation thereof
GB1391973A (en) Polyvinyl acetal membrane
GB1420988A (en) Semi-permeable polyvinyl alcohol membranes
GB1396091A (en) Semi-permeable membranes
ES372255A1 (es) Procedimiento para la preparacion de membranas semi-permea-bles.
ES8707428A1 (es) Procedimiento para la produccion de una solucion a base de una poliariletersulfona sulfonada
CH613215A5 (en) Process for the preparation of a stable water-in-oil emulsion of a polymer dissolved in the aqueous phase
GB1279719A (en) Process for the preparation of a semipermeable membrane
JPS55134608A (en) Preparation of semipermeable membrane with selective permeability
GB1324019A (en) Method of making reverse osmosis membranes
CH490115A (fr) Membranes échangeuses de cations
IE34250B1 (en) Itaconic acid purification process using reverse osmosis
GB1396092A (en) Semi-permeable membranes
KR860001157A (ko) 착색제 및 그의 제조방법
GB1276151A (en) Semipermeable membranes
KR880010339A (ko) 상 리타더
GB1414118A (en) Vinyl copolymers and semi-permeable membranes made therefrom
GB1412252A (en) Membranous articles and methods for their manufacture
US4216301A (en) Process for solution polymerization of acrylonitrile

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee