IT1143711B - PERMSELECTIVE MEMBRANES AND PROCESS FOR THEIR PREPARATION - Google Patents
PERMSELECTIVE MEMBRANES AND PROCESS FOR THEIR PREPARATIONInfo
- Publication number
- IT1143711B IT1143711B IT28830/77A IT2883077A IT1143711B IT 1143711 B IT1143711 B IT 1143711B IT 28830/77 A IT28830/77 A IT 28830/77A IT 2883077 A IT2883077 A IT 2883077A IT 1143711 B IT1143711 B IT 1143711B
- Authority
- IT
- Italy
- Prior art keywords
- preparation
- permselective membranes
- permselective
- membranes
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
-
- 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
- B01D67/00111—Polymer pretreatment in the casting solutions
-
- 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
- B01D67/0083—Thermal after-treatment
-
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73463176A | 1976-10-21 | 1976-10-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1143711B true IT1143711B (en) | 1986-10-22 |
Family
ID=24952479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT28830/77A IT1143711B (en) | 1976-10-21 | 1977-10-20 | PERMSELECTIVE MEMBRANES AND PROCESS FOR THEIR PREPARATION |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5351184A (en) |
CA (1) | CA1107424A (en) |
DE (1) | DE2747408A1 (en) |
FR (1) | FR2368289A1 (en) |
GB (1) | GB1561200A (en) |
IT (1) | IT1143711B (en) |
NL (1) | NL7711594A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3028213C2 (en) * | 1980-07-25 | 1990-12-06 | Akzo Gmbh, 5600 Wuppertal | Process for the production of an ultrafiltration membrane made of polyamide and a membrane produced therefrom |
GB8320797D0 (en) * | 1983-08-02 | 1983-09-01 | Shell Int Research | Very thin dense membrane |
AU4787685A (en) * | 1984-09-27 | 1986-04-10 | E.I. Du Pont De Nemours And Company | Aromatic polyamide membrane for reverse osmosis |
NL9000329A (en) * | 1990-02-12 | 1991-09-02 | Stork Friesland Bv | HYDROFILE MEMBRANE, METHOD FOR MANUFACTURING A HYDROFILE MEMBRANE. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3567632A (en) * | 1968-09-04 | 1971-03-02 | Du Pont | Permselective,aromatic,nitrogen-containing polymeric membranes |
US3660281A (en) * | 1970-05-06 | 1972-05-02 | Du Pont | Permeation separation membranes |
US3775361A (en) * | 1971-10-21 | 1973-11-27 | Du Pont | Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers |
US3954607A (en) * | 1972-05-01 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith |
US3853754A (en) * | 1972-07-20 | 1974-12-10 | Du Pont | Membrane separation of homogeneous catalysts from nitrile solutions |
US3816303A (en) * | 1972-12-20 | 1974-06-11 | Us Interior | Poly(n-amido)imides as semipermeable membranes |
JPS568645B2 (en) * | 1974-09-05 | 1981-02-25 | ||
US4159251A (en) * | 1976-09-29 | 1979-06-26 | Pharmaco, Inc. | Ultrafiltration membranes based on heteroaromatic polymers |
-
1977
- 1977-10-19 CA CA289,041A patent/CA1107424A/en not_active Expired
- 1977-10-19 JP JP12467477A patent/JPS5351184A/en active Granted
- 1977-10-20 FR FR7731590A patent/FR2368289A1/en active Granted
- 1977-10-20 IT IT28830/77A patent/IT1143711B/en active
- 1977-10-20 GB GB43796/77A patent/GB1561200A/en not_active Expired
- 1977-10-21 DE DE19772747408 patent/DE2747408A1/en active Granted
- 1977-10-21 NL NL7711594A patent/NL7711594A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2368289B1 (en) | 1984-06-08 |
FR2368289A1 (en) | 1978-05-19 |
NL7711594A (en) | 1978-04-25 |
JPS5351184A (en) | 1978-05-10 |
GB1561200A (en) | 1980-02-13 |
CA1107424A (en) | 1981-08-18 |
JPS6127085B2 (en) | 1986-06-24 |
DE2747408C2 (en) | 1987-06-25 |
DE2747408A1 (en) | 1978-04-27 |
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