ES381520A1 - Procedimiento para la preparacion de membranas y peliculas para osmosis inversa. - Google Patents

Procedimiento para la preparacion de membranas y peliculas para osmosis inversa.

Info

Publication number
ES381520A1
ES381520A1 ES381520A ES381520A ES381520A1 ES 381520 A1 ES381520 A1 ES 381520A1 ES 381520 A ES381520 A ES 381520A ES 381520 A ES381520 A ES 381520A ES 381520 A1 ES381520 A1 ES 381520A1
Authority
ES
Spain
Prior art keywords
membrane
cycloalkyl
aryl
halogen
alkyl
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES381520A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Consiglio Nazionale delle Richerche CNR
Montedison SpA
Original Assignee
Consiglio Nazionale delle Richerche CNR
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica 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
Application filed by Consiglio Nazionale delle Richerche CNR, Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Consiglio Nazionale delle Richerche CNR
Publication of ES381520A1 publication Critical patent/ES381520A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids

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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyamides (AREA)
ES381520A 1969-07-08 1970-07-07 Procedimiento para la preparacion de membranas y peliculas para osmosis inversa. Expired ES381520A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1931769 1969-07-08

Publications (1)

Publication Number Publication Date
ES381520A1 true ES381520A1 (es) 1973-04-16

Family

ID=11156673

Family Applications (1)

Application Number Title Priority Date Filing Date
ES381520A Expired ES381520A1 (es) 1969-07-08 1970-07-07 Procedimiento para la preparacion de membranas y peliculas para osmosis inversa.

Country Status (11)

Country Link
US (2) US3687842A (es)
JP (1) JPS4835153B1 (es)
BE (1) BE753088A (es)
CA (1) CA922240A (es)
DE (1) DE2033544A1 (es)
ES (1) ES381520A1 (es)
FR (1) FR2054256A5 (es)
GB (1) GB1276595A (es)
IL (1) IL34860A (es)
NL (1) NL7009957A (es)
ZA (1) ZA704671B (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793504A (fr) * 1971-12-30 1973-06-29 Montedison Spa Membranes anisotropes de retro-osmose et leur procede de preparation
US4129559A (en) * 1973-01-16 1978-12-12 Montedison S.P.A. Reverse osmosis anisotropic membranes based on polypiperazine amides
ZA74296B (en) * 1973-01-16 1974-11-27 Montedison Spa Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
US4259183A (en) * 1978-11-07 1981-03-31 Midwest Research Institute Reverse osmosis membrane
JPS55121891U (es) * 1979-02-22 1980-08-29
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
US4337154A (en) * 1979-04-04 1982-06-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Crosslinked composite semipermeable membrane
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi
US4659475A (en) * 1984-03-19 1987-04-21 Midwest Research Institute Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct)
US4769148A (en) * 1987-11-18 1988-09-06 The Dow Chemical Company Novel polyamide reverse osmosis membranes
US4859384A (en) * 1987-11-18 1989-08-22 Filmtec Corp. Novel polyamide reverse osmosis membranes
US5770136A (en) * 1995-08-07 1998-06-23 Huang; Xiaodi Method for consolidating powdered materials to near net shape and full density
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US6042780A (en) * 1998-12-15 2000-03-28 Huang; Xiaodi Method for manufacturing high performance components
US6464873B1 (en) 1999-06-15 2002-10-15 Hydranautics Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
US7156997B2 (en) * 2001-10-05 2007-01-02 Dow Global Technologies Inc. Package assembly for piperazine-based membranes
US8177978B2 (en) 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
ES2715823T3 (es) 2009-06-29 2019-06-06 Nanoh2O Inc Membranas TFC para RO híbridas mejoradas con aditivos nitrogenados
AU2011326483B2 (en) 2010-11-10 2017-02-23 Nanoh2O, Inc. Improved hybrid TFC RO membranes with non-metallic additives
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents

Also Published As

Publication number Publication date
IL34860A0 (en) 1970-09-17
DE2033544A1 (de) 1971-01-21
CA922240A (en) 1973-03-06
BE753088A (fr) 1971-01-07
ZA704671B (en) 1971-04-28
FR2054256A5 (es) 1971-04-16
US3743596A (en) 1973-07-03
GB1276595A (en) 1972-06-01
NL7009957A (es) 1971-01-12
US3687842A (en) 1972-08-29
IL34860A (en) 1973-04-30
JPS4835153B1 (es) 1973-10-26

Similar Documents

Publication Publication Date Title
ES381520A1 (es) Procedimiento para la preparacion de membranas y peliculas para osmosis inversa.
ES381521A1 (es) Procedimiento para la preparacion de membranas y peliculas de osmosis inversa.
AT343903B (de) Verfahren zur herstellung wasserloslicher, hochmolekularer polymerisate
GB1492176A (en) Solvent extraction process using a high diffusivity membrane
GB1159218A (en) Reverse Osmosis Membrane and method for its manufacture
GB1495988A (en) Polyimide copolymers
IT1022423B (it) Composizione per pellicole auto saldanti e prodotto ottenuto
IT967423B (it) Membrane polimeriche permselet tive
GB1416457A (en) Treatment of polymer membranes
ATA274174A (de) Verfahren zur herstellung von epsilon-karbonitridschichten auf teilen aus eisenlegierungen
DK135951B (da) Brandsikrede materialer til fremstilling af tekstiler eller formede genstande, der indeholder phosphorholdige grupper, baseret på lineære polyestere.
JPS5316373A (en) Preparation of combined membrane
GB1473946A (en) Cellular heterocyclic polymer structures
KR890011914A (ko) 거대다공성, 비대칭, 친수성 폴리아라미드 막
ES410178A1 (es) Procedimiento para la preparacion de membranas polimericas anisotropicas de osmosis inversa.
CH545354A (de) Verfahren zur Herstellung von hochmolekularen, aromatischen Polyamiden
NO139299C (no) Fremgangsmaate for fremmstilling av tverrbundne, formede gjenstander av tverrbindbare olefiniske polymermaterialer
BE792198A (fr) Epinglage electrostatique de pellicules de polymere
FI801496A (fi) Polyolefinbaserade fibriller och foerfarande foer framstaellning av dessa
ES428852A1 (es) Procedimiento para la preparacion de espumas de policlorurode vinilo.
AT339606B (de) Verfahren zur herstellung von neuen, ketimingruppen enthaltenden prapolymeren
GB1387649A (en) Organosilicon polymer membrane
FI55212B (fi) Komposition innehaollande en huvudmaengd raoolja eller ett mellandestillat daerav och daertill en tillraecklig maengd av minst en polymer substans foer foerbaettring av flytegenskaperna i kyla
AT333028B (de) Verfahren zur herstellung von polyathylen mit molekulargewicht uber 500 000
DK127103B (da) Analogifremgangsmåde til fremstilling af bis (hydroxyphenylalkyl) diaminer i form af de rene optiske antipoder, blandinger af disse eller racemater eller syreadditionssalte deraf.