IT978187B - ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES - Google Patents

ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES

Info

Publication number
IT978187B
IT978187B IT19247/73A IT1924773A IT978187B IT 978187 B IT978187 B IT 978187B IT 19247/73 A IT19247/73 A IT 19247/73A IT 1924773 A IT1924773 A IT 1924773A IT 978187 B IT978187 B IT 978187B
Authority
IT
Italy
Prior art keywords
polyperazinamides
elevate
reverse osmosis
high flow
preparation procedures
Prior art date
Application number
IT19247/73A
Other languages
Italian (it)
Inventor
G Baruzzi
V Guidotti
L Credali
Original Assignee
Montedison Spa
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
Priority to ZA740296A priority Critical patent/ZA74296B/en
Application filed by Montedison Spa filed Critical Montedison Spa
Priority to IT19247/73A priority patent/IT978187B/en
Priority to NLAANVRAGE7400402,A priority patent/NL176231C/en
Priority to DE2401428A priority patent/DE2401428C2/en
Priority to GB176174A priority patent/GB1402247A/en
Priority to FR7401108A priority patent/FR2324335A1/en
Priority to BE139818A priority patent/BE809757A/en
Priority to AU64509/74A priority patent/AU6450974A/en
Priority to ES422290A priority patent/ES422290A1/en
Priority to JP717974A priority patent/JPS574361B2/ja
Priority to CA190,326A priority patent/CA1024711A/en
Priority to IL44156A priority patent/IL44156A/en
Application granted granted Critical
Publication of IT978187B publication Critical patent/IT978187B/en
Priority to US05/626,289 priority patent/US4129559A/en

Links

Classifications

    • 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
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/40—Polyamides containing oxygen in the form of ether groups
    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • 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
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyamides (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
IT19247/73A 1973-01-16 1973-01-16 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES IT978187B (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ZA740296A ZA74296B (en) 1973-01-16 1973-01-15 Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
IT19247/73A IT978187B (en) 1973-01-16 1973-01-16 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES
NLAANVRAGE7400402,A NL176231C (en) 1973-01-16 1974-01-11 ANISOTROPE GEL MEMBRANES AND METHOD OF MANUFACTURING THEM.
DE2401428A DE2401428C2 (en) 1973-01-16 1974-01-12 Anisotropic reverse osmosis membrane and process for its manufacture
FR7401108A FR2324335A1 (en) 1973-01-16 1974-01-14 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS AND PROCESS FOR PREPARING SUCH MEMBRANES
GB176174A GB1402247A (en) 1973-01-16 1974-01-14 Anisotropic reverse osmosis membranes
BE139818A BE809757A (en) 1973-01-16 1974-01-15 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS AND PROCESS FOR PREPARING SUCH MEMBRANES
AU64509/74A AU6450974A (en) 1973-01-16 1974-01-15 Reverse osmosis anisotropic membranes
ES422290A ES422290A1 (en) 1973-01-16 1974-01-15 Anisotropic reverse osmosis membranes
JP717974A JPS574361B2 (en) 1973-01-16 1974-01-16
CA190,326A CA1024711A (en) 1973-01-16 1974-01-16 Reverse osmosis anisotropic membranes based on polypiperazine amides, and process for preparing such membranes
IL44156A IL44156A (en) 1973-01-16 1974-02-06 Reverse osmosis anisotropic membranes and their preparation
US05/626,289 US4129559A (en) 1973-01-16 1975-10-28 Reverse osmosis anisotropic membranes based on polypiperazine amides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19247/73A IT978187B (en) 1973-01-16 1973-01-16 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES

Publications (1)

Publication Number Publication Date
IT978187B true IT978187B (en) 1974-09-20

Family

ID=11156091

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19247/73A IT978187B (en) 1973-01-16 1973-01-16 ANISOTROPIC MEMBRANES FOR REVERSE OSMOSIS WITH HIGH FLOW AND ELEVATE SALINE REJECTION BASED ON POLYPERAZINAMIDES AND RELATIVE PREPARATION PROCEDURES

Country Status (12)

Country Link
JP (1) JPS574361B2 (en)
AU (1) AU6450974A (en)
BE (1) BE809757A (en)
CA (1) CA1024711A (en)
DE (1) DE2401428C2 (en)
ES (1) ES422290A1 (en)
FR (1) FR2324335A1 (en)
GB (1) GB1402247A (en)
IL (1) IL44156A (en)
IT (1) IT978187B (en)
NL (1) NL176231C (en)
ZA (1) ZA74296B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704600C3 (en) * 1977-02-04 1988-05-26 Hoechst Ag, 6230 Frankfurt Permselective, asymmetric hemofiltration membrane with heteroporous structure based on polyamide
JPS57174107A (en) * 1981-04-20 1982-10-26 Teijin Ltd Production of permselective membrane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696031A (en) * 1969-07-08 1972-10-03 Consiglio Nazionale Ricerche Osmosis process
US3687842A (en) * 1969-07-08 1972-08-29 Consiglio Nazionale Ricerche Osmosis process
US3664986A (en) * 1969-10-14 1972-05-23 Du Pont 1,2,5-thiadiazole polymers
BE793504A (en) * 1971-12-30 1973-06-29 Montedison Spa ANISOTROPIC RETROOSMOSIS MEMBRANES AND THEIR PREPARATION PROCESS

Also Published As

Publication number Publication date
AU6450974A (en) 1975-07-17
IL44156A (en) 1976-08-31
JPS49109271A (en) 1974-10-17
CA1024711A (en) 1978-01-24
FR2324335A1 (en) 1977-04-15
FR2324335B1 (en) 1978-02-10
BE809757A (en) 1974-07-15
IL44156A0 (en) 1974-05-16
JPS574361B2 (en) 1982-01-26
NL7400402A (en) 1974-07-18
GB1402247A (en) 1975-08-06
ZA74296B (en) 1974-11-27
ES422290A1 (en) 1976-04-01
NL176231B (en) 1984-10-16
DE2401428C2 (en) 1985-11-14
DE2401428A1 (en) 1974-07-18
NL176231C (en) 1985-03-18

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