CH597901A5 - - Google Patents
Info
- Publication number
- CH597901A5 CH597901A5 CH82675A CH82675A CH597901A5 CH 597901 A5 CH597901 A5 CH 597901A5 CH 82675 A CH82675 A CH 82675A CH 82675 A CH82675 A CH 82675A CH 597901 A5 CH597901 A5 CH 597901A5
- Authority
- CH
- Switzerland
Links
Classifications
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- 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
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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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/16—Feed pretreatment
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH82675A CH597901A5 (it) | 1975-01-23 | 1975-01-23 | |
DE19752505255 DE2505255A1 (de) | 1975-01-23 | 1975-02-07 | Verfahren zur abtrennung von metallionen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH82675A CH597901A5 (it) | 1975-01-23 | 1975-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH597901A5 true CH597901A5 (it) | 1978-04-14 |
Family
ID=4196093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH82675A CH597901A5 (it) | 1975-01-23 | 1975-01-23 |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH597901A5 (it) |
DE (1) | DE2505255A1 (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3070021D1 (en) * | 1979-09-19 | 1985-03-07 | Aligena Ag | Porous semipermeable membrane based on polyacrylonitrile modified by amidoxime groups, process for its preparation and their use |
EP0026399B1 (de) * | 1979-09-19 | 1984-03-14 | Aligena Ag | Poröse, semipermeable, mit ionisierbaren Gruppen modifizierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung |
IL63638A0 (en) * | 1980-09-16 | 1981-11-30 | Aligena Ag | Semipermeable composite membranes,their manufacture and their use |
CH649718A5 (de) * | 1981-03-25 | 1985-06-14 | Aligena Ag | Verfahren zur herstellung von semipermeablen membranen aus polymeren auf acrylnitrilbasis, die nach diesem verfahren hergestellten membranen und ihre verwendung. |
AU550730B2 (en) * | 1982-03-09 | 1986-04-10 | Commonwealth Of Australia, The | Automated metal detection |
GB8310666D0 (en) * | 1983-04-20 | 1983-05-25 | Limit Instant Ltd | Treatment of membranes |
EP0328275A1 (en) * | 1988-01-29 | 1989-08-16 | Analaq Limited | Assaying aluminium in drinking water |
GB8802069D0 (en) * | 1988-01-29 | 1988-02-24 | South West Water Authority | Assaying aluminium in drinking water |
US5176834A (en) * | 1989-08-08 | 1993-01-05 | Board Of Regents Of The University Of Oklahoma | Ion expulsion ultrafiltration method |
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1975
- 1975-01-23 CH CH82675A patent/CH597901A5/xx not_active IP Right Cessation
- 1975-02-07 DE DE19752505255 patent/DE2505255A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE2505255A1 (de) | 1976-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |