ZA712323B - A diaphragm for inverse osmosis and process for its production - Google Patents

A diaphragm for inverse osmosis and process for its production

Info

Publication number
ZA712323B
ZA712323B ZA712323A ZA712323A ZA712323B ZA 712323 B ZA712323 B ZA 712323B ZA 712323 A ZA712323 A ZA 712323A ZA 712323 A ZA712323 A ZA 712323A ZA 712323 B ZA712323 B ZA 712323B
Authority
ZA
South Africa
Prior art keywords
diaphragm
production
inverse osmosis
osmosis
inverse
Prior art date
Application number
ZA712323A
Other languages
English (en)
Inventor
L Nacolas
R Dick
Original Assignee
Anvar
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 Anvar filed Critical Anvar
Publication of ZA712323B publication Critical patent/ZA712323B/xx

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6212—Polymers of alkenylalcohols; Acetals thereof; Oxyalkylation products thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
    • C08G18/6283—Polymers of nitrogen containing compounds having carbon-to-carbon double bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
    • C08G18/6415—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 having nitrogen
    • C08G18/6423—Polyalkylene polyamines; polyethylenimines; Derivatives thereof
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Laminated Bodies (AREA)
ZA712323A 1970-04-17 1971-04-13 A diaphragm for inverse osmosis and process for its production ZA712323B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7013999A FR2088598A5 (pt) 1970-04-17 1970-04-17

Publications (1)

Publication Number Publication Date
ZA712323B true ZA712323B (en) 1972-01-26

Family

ID=9054170

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA712323A ZA712323B (en) 1970-04-17 1971-04-13 A diaphragm for inverse osmosis and process for its production

Country Status (13)

Country Link
US (1) US3837500A (pt)
BE (1) BE765463A (pt)
BR (1) BR7102267D0 (pt)
CA (1) CA982061A (pt)
CH (1) CH545641A (pt)
DE (1) DE2118625A1 (pt)
ES (1) ES390273A1 (pt)
FR (1) FR2088598A5 (pt)
GB (1) GB1325227A (pt)
IL (1) IL36606A (pt)
NL (1) NL7105256A (pt)
SU (1) SU576015A3 (pt)
ZA (1) ZA712323B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2201911B1 (pt) * 1972-07-20 1974-12-27 Rhone Poulenc Sa
IL43201A (en) * 1972-09-19 1976-11-30 North Star Res & Dev Reverse osmosis membrane and its preparation
DE2615954C3 (de) * 1975-04-22 1981-04-23 Kuraray Co., Ltd., Kurashiki, Okayama Membran auf Basis von Polyvinylalkohol
FR2371477A1 (fr) * 1976-04-02 1978-06-16 Uop Inc Procede de preparation de membranes semipermeables composites
US4248380A (en) * 1977-12-27 1981-02-03 Airwick Industries, Inc. Aqueous-based air treating systems
JPS5727102A (en) * 1980-07-28 1982-02-13 Nitto Electric Ind Co Ltd Composite semipermeable membrane and its production
GB2174619B (en) * 1985-05-07 1989-05-04 Us Energy Pervaporation separation of ethanol-water mixtures using polyacrylic acid composite membranes
GB8620484D0 (en) * 1986-08-22 1986-10-01 Raychem Ltd Plugged microporous film
DK169616B1 (da) * 1986-08-27 1994-12-27 Dow Danmark Permeabel, porøs, polymerbehandlet plastmembran med hydrofil karakter, fremgangsmåder til fremstilling heraf samt anvendelse heraf
US6043177A (en) * 1997-01-21 2000-03-28 University Technology Corporation Modification of zeolite or molecular sieve membranes using atomic layer controlled chemical vapor deposition
US6649255B1 (en) 1999-03-04 2003-11-18 Douglas E. Fain, Sr. Article and method for producing extremely small pore inorganic membranes
DE102009002130A1 (de) 2009-04-02 2010-10-14 Wacker Chemie Ag Membranen auf Basis von Polyvinylalkohol
CN109821419A (zh) * 2019-02-25 2019-05-31 舟山腾宇航天新材料有限公司 一种高截留率和渗透通量的以陶瓷为支撑体的无机纳滤膜的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276996A (en) * 1963-07-15 1966-10-04 Lazare Leon Separating water from saline solutions
US3615024A (en) * 1968-08-26 1971-10-26 Amicon Corp High flow membrane
US3661634A (en) * 1969-10-31 1972-05-09 Us Interior Semipermeable osmotic membrane and method of producing same

Also Published As

Publication number Publication date
BE765463A (fr) 1971-08-30
CA982061A (en) 1976-01-20
IL36606A (en) 1974-10-22
ES390273A1 (es) 1975-07-16
IL36606A0 (en) 1971-06-23
CH545641A (pt) 1974-02-15
FR2088598A5 (pt) 1972-01-07
GB1325227A (en) 1973-08-01
US3837500A (en) 1974-09-24
NL7105256A (pt) 1971-10-19
BR7102267D0 (pt) 1973-05-03
SU576015A3 (ru) 1977-10-05
DE2118625A1 (de) 1971-11-04

Similar Documents

Publication Publication Date Title
ZA708609B (en) Denicotinizing process
ZA712323B (en) A diaphragm for inverse osmosis and process for its production
GB1349890A (en) Process for producing electrets
EG10628A (en) Process for making 7-halolincomycin
AU459849B2 (en) Drawing process
PH9588A (en) Process for producing diphenylamines
ZA713541B (en) Tropan-3-ol-derivatives and processes for their production
CA961212A (en) Paper producing process
GB1405537A (en) Dichlorothiazolothiazole and a process for its production
YU211571A (en) Process for producing triazolobenzodiazepines
GB1317035A (en) Process for producing plastein
GB1422142A (en) Process
AU6043173A (en) Process
MY7600086A (en) Novel 1-polyfluoroalkyl-benzodiazepines and methods for their production
CA938234A (en) Diketocoriolin b and process for the production thereof
YU173971A (en) Process for producing penicillamines
ZA736077B (en) Process producing 7-acylamido-7-alkoxycephalosporins
AU427691B2 (en) Paper production process
CA939215A (en) Paper production process
CA979892A (en) Furfurylamines and process for their production
CA831530A (en) 2-halogen-benzimidazoles and process for their production
GB1422141A (en) Process
AU3203371A (en) Paper production process
CA834243A (en) Polyamine production
CA952295A (en) Porous cloth and a method for its production