NL6903105A - - Google Patents
Info
- Publication number
- NL6903105A NL6903105A NL6903105A NL6903105A NL6903105A NL 6903105 A NL6903105 A NL 6903105A NL 6903105 A NL6903105 A NL 6903105A NL 6903105 A NL6903105 A NL 6903105A NL 6903105 A NL6903105 A NL 6903105A
- Authority
- NL
- Netherlands
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
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
-
- 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
- B01D67/0011—Casting solutions therefor
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/10—Esters of organic acids, i.e. acylates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/15—Use of additives
- B01D2323/18—Pore-control agents or pore formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70922668A | 1968-02-29 | 1968-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6903105A true NL6903105A (de) | 1969-09-02 |
Family
ID=24848968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6903105A NL6903105A (de) | 1968-02-29 | 1969-02-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3522335A (de) |
| JP (1) | JPS4927269B1 (de) |
| DE (1) | DE1908344C3 (de) |
| GB (1) | GB1252466A (de) |
| IL (1) | IL31714A (de) |
| NL (1) | NL6903105A (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720607A (en) * | 1970-04-15 | 1973-03-13 | Celanese Corp | Reverse osmosis process employing polybenzimidazole membranes |
| FR2138333B1 (de) * | 1971-05-24 | 1974-03-08 | Rhone Poulenc Sa | |
| US3789993A (en) * | 1972-01-06 | 1974-02-05 | Eastman Kodak Co | Cellulosic reverse osmosis membranes having high flux and high salt rejection |
| US3792135A (en) * | 1972-01-06 | 1974-02-12 | Eastman Kodak Co | Process for manufacturing cellulosic reverse osmosis membranes using a very high temperature initial aqueous quench |
| US3894166A (en) * | 1972-08-21 | 1975-07-08 | Eastman Kodak Co | Integral reverse osmosis membrane with highly pressed woven fabric support member |
| US4077407A (en) * | 1975-11-24 | 1978-03-07 | Alza Corporation | Osmotic devices having composite walls |
| US4377654A (en) * | 1981-11-16 | 1983-03-22 | Polaroid Corporation | Polymerization processes and polymer compositions |
| US4707266A (en) * | 1982-02-05 | 1987-11-17 | Pall Corporation | Polyamide membrane with controlled surface properties |
| USRE33273E (en) * | 1982-08-18 | 1990-07-24 | Georgia Tech Research Corporation | Materials having improved nonfouling characteristics and method of making same |
| US4554076A (en) * | 1982-08-18 | 1985-11-19 | Georgia Tech Research Corporation | Method of modifying membrane surface with oriented monolayers of amphiphilic compounds |
| GB2150147A (en) * | 1983-11-25 | 1985-06-26 | Donald James Highgate | Materials for use in forming casts |
| US4681605A (en) * | 1985-06-27 | 1987-07-21 | A/G Technology Corporation | Anisotropic membranes for gas separation |
| US4894157A (en) * | 1987-10-05 | 1990-01-16 | Micron Separations, Inc. | Process for producing supported celluosic membranes and products |
| EP0570826A1 (de) * | 1992-05-20 | 1993-11-24 | Akzo Nobel N.V. | Celluloseacetatmembranen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE594237A (de) * | 1959-08-24 | |||
| US3364288A (en) * | 1962-05-25 | 1968-01-16 | Univ California | Fresh water recovery |
| US3331772A (en) * | 1965-08-03 | 1967-07-18 | Atlantic Refining Co | Desalting water by reverse osmosis through novel semipermeable membranes |
| US3285765A (en) * | 1965-10-18 | 1966-11-15 | Charles R Cannon | Cellulose acetate reverse osmosis desalination membranes cast from nonaqueous solutions and a method of making the same |
| US3432584A (en) * | 1966-02-17 | 1969-03-11 | Aerojet General Co | Process for the manufacture of a reverse osmosis membrane having a nonheating annealing step |
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1968
- 1968-02-29 US US709226A patent/US3522335A/en not_active Expired - Lifetime
-
1969
- 1969-02-19 DE DE1908344A patent/DE1908344C3/de not_active Expired
- 1969-02-27 JP JP44014328A patent/JPS4927269B1/ja active Pending
- 1969-02-27 NL NL6903105A patent/NL6903105A/xx unknown
- 1969-02-27 GB GB1252466D patent/GB1252466A/en not_active Expired
- 1969-02-28 IL IL31714A patent/IL31714A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1908344C3 (de) | 1975-01-23 |
| JPS4927269B1 (de) | 1974-07-16 |
| GB1252466A (de) | 1971-11-03 |
| DE1908344A1 (de) | 1970-07-09 |
| IL31714A0 (en) | 1969-04-30 |
| US3522335A (en) | 1970-07-28 |
| IL31714A (en) | 1972-01-27 |