SE456244B - Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer - Google Patents

Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer

Info

Publication number: SE456244B
Authority: SE; Sweden
Prior art keywords: permeate; unit; formaldehyde; solution; resin
Prior art date: 1987-01-19

Application number

SE8700187A

Other languages

English (en)

Swedish (sv)

Other versions

SE8700187D0 (sv

SE8700187L (sv

Inventor

K U E Helmer

K-E M Stensio

Original Assignee

Casco Nobel Ab

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.)

1987-01-19

Filing date

1987-01-19

Publication date

1988-09-19

1987-01-19 Application filed by Casco Nobel Ab filed Critical Casco Nobel Ab

1987-01-19 Priority to SE8700187A priority Critical patent/SE456244B/sv

1987-01-19 Publication of SE8700187D0 publication Critical patent/SE8700187D0/xx

1987-12-29 Priority to AT88901154T priority patent/ATE107937T1/de

1987-12-29 Priority to US07/375,015 priority patent/US5009789A/en

1987-12-29 Priority to JP62506293A priority patent/JPH0774257B2/ja

1987-12-29 Priority to DE3750168T priority patent/DE3750168T2/de

1987-12-29 Priority to PCT/SE1987/000637 priority patent/WO1988005444A1/en

1987-12-29 Priority to EP88901154A priority patent/EP0442866B1/de

1988-01-11 Priority to CA000556215A priority patent/CA1326637C/en

1988-01-18 Priority to ES8800103A priority patent/ES2005758A6/es

1988-07-20 Publication of SE8700187L publication Critical patent/SE8700187L/xx

1988-09-16 Priority to NO884141A priority patent/NO170856C/no

1988-09-19 Publication of SE456244B publication Critical patent/SE456244B/sv

1989-07-17 Priority to FI893453A priority patent/FI99120C/fi

Links

238000000108 ultra-filtration Methods 0.000 title claims abstract description 22
238000000926 separation method Methods 0.000 title claims abstract description 19
229920003170 water-soluble synthetic polymer Polymers 0.000 title claims description 5
239000012466 permeate Substances 0.000 claims abstract description 49
229920005989 resin Polymers 0.000 claims abstract description 49
239000011347 resin Substances 0.000 claims abstract description 49
239000000243 solution Substances 0.000 claims abstract description 45
239000012528 membrane Substances 0.000 claims abstract description 41
239000012141 concentrate Substances 0.000 claims abstract description 32
229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 19
238000006116 polymerization reaction Methods 0.000 claims abstract description 19
238000001223 reverse osmosis Methods 0.000 claims abstract description 17
238000004519 manufacturing process Methods 0.000 claims abstract description 4
239000007864 aqueous solution Substances 0.000 claims abstract description 3
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 93
238000000034 method Methods 0.000 claims description 21
GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 12
229920000642 polymer Polymers 0.000 claims description 8
239000006227 byproduct Substances 0.000 claims description 7
239000000178 monomer Substances 0.000 claims description 7
229920006158 high molecular weight polymer Polymers 0.000 claims description 4
229920003169 water-soluble polymer Polymers 0.000 claims description 4
238000004064 recycling Methods 0.000 claims description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
229920006186 water-soluble synthetic resin Polymers 0.000 abstract description 2
239000000047 product Substances 0.000 description 21
230000015572 biosynthetic process Effects 0.000 description 10
238000003786 synthesis reaction Methods 0.000 description 9
230000000694 effects Effects 0.000 description 7
238000001914 filtration Methods 0.000 description 6
238000010626 work up procedure Methods 0.000 description 5
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
230000007613 environmental effect Effects 0.000 description 4
239000000463 material Substances 0.000 description 4
WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
239000002994 raw material Substances 0.000 description 4
239000000126 substance Substances 0.000 description 4
229910052717 sulfur Inorganic materials 0.000 description 4
239000011593 sulfur Substances 0.000 description 4
229920000877 Melamine resin Polymers 0.000 description 3
239000002131 composite material Substances 0.000 description 3
230000007062 hydrolysis Effects 0.000 description 3
238000006460 hydrolysis reaction Methods 0.000 description 3
229920002492 poly(sulfone) Polymers 0.000 description 3
239000000654 additive Substances 0.000 description 2
230000000996 additive effect Effects 0.000 description 2
125000000129 anionic group Chemical group 0.000 description 2
125000002091 cationic group Chemical group 0.000 description 2
229920002301 cellulose acetate Polymers 0.000 description 2
229920000962 poly(amidoamine) Polymers 0.000 description 2
230000000717 retained effect Effects 0.000 description 2
239000010409 thin film Substances 0.000 description 2
239000000080 wetting agent Substances 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 description 1
239000002033 PVDF binder Substances 0.000 description 1
239000004952 Polyamide Substances 0.000 description 1
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
238000010923 batch production Methods 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
239000011230 binding agent Substances 0.000 description 1
239000004202 carbamide Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
230000001627 detrimental effect Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
239000003085 diluting agent Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000001035 drying Methods 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000000835 fiber Substances 0.000 description 1
239000010408 film Substances 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
239000012467 final product Substances 0.000 description 1
238000005194 fractionation Methods 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
239000000203 mixture Substances 0.000 description 1
239000003607 modifier Substances 0.000 description 1
238000005554 pickling Methods 0.000 description 1
229920002647 polyamide Polymers 0.000 description 1
239000002861 polymer material Substances 0.000 description 1
ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
229920002981 polyvinylidene fluoride Polymers 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000000746 purification Methods 0.000 description 1
239000012465 retentate Substances 0.000 description 1
150000003384 small molecules Chemical class 0.000 description 1
239000011122 softwood Substances 0.000 description 1
238000010561 standard procedure Methods 0.000 description 1
238000003860 storage Methods 0.000 description 1
125000004354 sulfur functional group Chemical group 0.000 description 1
238000004065 wastewater treatment Methods 0.000 description 1
239000012866 water-soluble synthetic resin Substances 0.000 description 1

Classifications

- 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
- B01D61/58—Multistep processes
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2455—Stationary reactors without moving elements inside provoking a loop type movement of the reactants
- B01J19/2465—Stationary reactors without moving elements inside provoking a loop type movement of the reactants externally, i.e. the mixture leaving the vessel and subsequently re-entering it
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2475—Membrane reactors
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
- 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

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Water Supply & Treatment (AREA)
Health & Medical Sciences (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Phenolic Resins Or Amino Resins (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

SE8700187A 1987-01-19 1987-01-19 Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer SE456244B (sv)

Priority Applications (11)

Application Number	Priority Date	Filing Date	Title
SE8700187A SE456244B (sv)	1987-01-19	1987-01-19	Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer
EP88901154A EP0442866B1 (de)	1987-01-19	1987-12-29	Verfahren und vorrichtung zur trennung wasserlöschlicher polymere
DE3750168T DE3750168T2 (de)	1987-01-19	1987-12-29	Verfahren und vorrichtung zur trennung wasserlöschlicher polymere.
US07/375,015 US5009789A (en)	1987-01-19	1987-12-29	Method and plant for separation of synthetic water soluble polymers
JP62506293A JPH0774257B2 (ja)	1987-01-19	1987-12-29	合成水溶性ポリマーの分離方法およびプラント
AT88901154T ATE107937T1 (de)	1987-01-19	1987-12-29	Verfahren und vorrichtung zur trennung wasserlöschlicher polymere.
PCT/SE1987/000637 WO1988005444A1 (en)	1987-01-19	1987-12-29	Method and plant for separation of synthetic water soluble polymers
CA000556215A CA1326637C (en)	1987-01-19	1988-01-11	Method and plant for separation of synthetic water soluble polymers
ES8800103A ES2005758A6 (es)	1987-01-19	1988-01-18	Metodo e instalacion para la separacion de polimeros sinteticos solubles en agua.
NO884141A NO170856C (no)	1987-01-19	1988-09-16	Fremgangsmaate og anlegg for separasjon av syntetiske, vannopploeselige polymerer
FI893453A FI99120C (fi)	1987-01-19	1989-07-17	Menetelmä ja laite synteettisten vesiliukoisten hartsien erottamiseksi

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8700187A SE456244B (sv)	1987-01-19	1987-01-19	Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer

Publications (3)

Publication Number	Publication Date
SE8700187D0 SE8700187D0 (sv)	1987-01-19
SE8700187L SE8700187L (sv)	1988-07-20
SE456244B true SE456244B (sv)	1988-09-19

Family

ID=20367209

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8700187A SE456244B (sv)	1987-01-19	1987-01-19	Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer

Country Status (10)

Country	Link
US (1)	US5009789A (de)
EP (1)	EP0442866B1 (de)
JP (1)	JPH0774257B2 (de)
AT (1)	ATE107937T1 (de)
CA (1)	CA1326637C (de)
DE (1)	DE3750168T2 (de)
ES (1)	ES2005758A6 (de)
FI (1)	FI99120C (de)
SE (1)	SE456244B (de)
WO (1)	WO1988005444A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2656544B1 (fr) *	1989-12-29	1994-02-25	Diffusion Materiels Fluides Sa	Procede et unite de separation par microfiltration tangentielle, osmose inverse ou ultrafiltration a deux etages.
FR2658092B1 (fr) *	1990-02-13	1992-05-15	Atochem	Procede de purification de solutions de polyorganophosphazene par membranes.
DE4202539A1 (de) *	1992-01-30	1993-08-05	Duerr Gmbh & Co	Rueckgewinnungsanlage fuer wasserlackueberschuss
TW270882B (de) *	1992-09-08	1996-02-21	American Cyanamid Co
US5501798A (en) *	1994-04-06	1996-03-26	Zenon Environmental, Inc.	Microfiltration enhanced reverse osmosis for water treatment
JPH10506459A (ja) *	1994-09-09	1998-06-23	マイクロモジュール・システムズ	回路のメンブレンプローブ
FR2728182B1 (fr) *	1994-12-16	1997-01-24	Coatex Sa	Procede d'obtention d'agents de broyage et/ou de dispersion par separation physico-chimique, agents obtenus et leurs utilisations
DE69723577T2 (de)	1996-12-27	2004-05-13	Kao Corp.	Reinigungsverfahren ionischer polymeren
US5836321A (en) *	1997-04-07	1998-11-17	Chrysler Corporation	Process of recycling a water laden solvent which was used to purge a point supply line of a paint sprayer
NL1009218C2 (nl) *	1998-05-20	1999-11-24	Akzo Nobel Nv	Bereiding van een polymeer onder toepassing van een anorganisch membraan met een kleine gemiddelde poriegrootte.
EP0995483A1 (de) *	1998-10-23	2000-04-26	The Procter & Gamble Company	Querstromfiltrationsvorrichtung
DE19921507A1 (de)	1999-05-10	2000-11-16	Basf Ag	Verfahren zur Fraktionierung von in Wasser löslichen oder dispergierbaren aminogruppenhaltigen Polymeren mit breiter Molmassenverteilung
EP1507745B1 (de) *	2002-05-28	2007-04-25	Feralco AB	Verfahren zur behandlung von schlamm aus wasserwerken und abwasserbehandlungsanlagen
US7396457B2 (en) *	2006-06-27	2008-07-08	Hyosung Corporation	Apparatus and method for recovering acetic acid and catalyst in process for preparation of 2,6-naphthalenedicarboxylic acid
US7932349B2 (en) *	2006-09-18	2011-04-26	Hercules Incorporated	Membrane separation process for removing residuals polyamine-epihalohydrin resins
WO2009038758A1 (en) *	2007-09-20	2009-03-26	Verenium Corporation	Wastewater treatment system
EP2042485A1 (de) *	2007-09-28	2009-04-01	Huntsman International Llc	Verfahren zur Fraktionierung einer Mischung von Polyisocyanaten
IN2014DN08938A (de) *	2012-04-20	2015-05-22	Vito
MA39023A1 (fr) *	2013-11-08	2017-07-31	Georgia Pacific Chemicals Llc	Dépresseurs destinés à être utilisés dans des processus de séparation
BR112017005286A2 (pt)	2014-09-17	2017-12-12	Vito Nv	processo de reação com separação de membrana
CN108368215A (zh) *	2015-12-16	2018-08-03	罗地亚聚酰胺特殊品公司	用于从阳离子三聚氰胺-甲醛树脂溶液中减少甲醛含量的方法
CN106492722B (zh) *	2016-10-21	2018-07-20	山西省交通科学研究院	一种水性环氧树脂制备装置
US20180230024A1 (en) *	2017-02-08	2018-08-16	Casey Glynn	High toxicity wastewater mitigation methods and systems
US10864483B2 (en)	2018-11-16	2020-12-15	Integrated Protein Technologies, Snc.	Molecular weight filtration system and apparatus
AU2021262532A1 (en)	2020-04-30	2022-11-10	Kemira Oyj	Process for manufacturing wet strength resins

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3565256A (en) *	1969-03-24	1971-02-23	Amicon Corp	Ultrafiltration cell
US3567031A (en) *	1969-05-29	1971-03-02	Amicon Corp	Autoagitating ultrafiltration apparatus
US4159251A (en) *	1976-09-29	1979-06-26	Pharmaco, Inc.	Ultrafiltration membranes based on heteroaromatic polymers
JPS5410197A (en) *	1977-06-27	1979-01-25	Heihachirou Arakawa	Circulating way apparatus for decorative fish
JPS5462980A (en) *	1977-10-28	1979-05-21	Niigata Engineering Co Ltd	Ultrafiltration
US4340702A (en) *	1979-10-22	1982-07-20	The B. F. Goodrich Company	Ultrafiltration of vinyl resin latices and reuse of permeate in emulsion polymerization
US4308121A (en) *	1979-12-21	1981-12-29	E. I. Du Pont De Nemours And Company	Electrocoating process using polyhydroxyamine and second polymers

1987
- 1987-01-19 SE SE8700187A patent/SE456244B/sv not_active IP Right Cessation
- 1987-12-29 DE DE3750168T patent/DE3750168T2/de not_active Expired - Fee Related
- 1987-12-29 EP EP88901154A patent/EP0442866B1/de not_active Expired - Lifetime
- 1987-12-29 US US07/375,015 patent/US5009789A/en not_active Expired - Fee Related
- 1987-12-29 JP JP62506293A patent/JPH0774257B2/ja not_active Expired - Lifetime
- 1987-12-29 AT AT88901154T patent/ATE107937T1/de not_active IP Right Cessation
- 1987-12-29 WO PCT/SE1987/000637 patent/WO1988005444A1/en not_active Ceased
1988
- 1988-01-11 CA CA000556215A patent/CA1326637C/en not_active Expired - Fee Related
- 1988-01-18 ES ES8800103A patent/ES2005758A6/es not_active Expired
1989
- 1989-07-17 FI FI893453A patent/FI99120C/fi not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI99120B (fi)	1997-06-30
CA1326637C (en)	1994-02-01
DE3750168T2 (de)	1994-10-20
EP0442866A1 (de)	1991-08-28
SE8700187D0 (sv)	1987-01-19
WO1988005444A1 (en)	1988-07-28
FI893453A0 (fi)	1989-07-17
FI99120C (fi)	1997-10-10
ES2005758A6 (es)	1989-03-16
DE3750168D1 (de)	1994-08-04
JPH0774257B2 (ja)	1995-08-09
ATE107937T1 (de)	1994-07-15
JPH02501934A (ja)	1990-06-28
SE8700187L (sv)	1988-07-20
FI893453L (fi)	1989-07-17
EP0442866B1 (de)	1994-06-29
US5009789A (en)	1991-04-23

Legal Events

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1995-01-31

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Publication	Publication Date	Title
SE456244B (sv)	1988-09-19	Sett och anleggning for separation genom ultrafiltrering av vattenlosliga syntetiska polymerer
KR100363804B1 (ko)	2003-02-14	1액형피복조성물로부터의과잉분무물의재농축방법
Koyuncu	2002	Reactive dye removal in dye/salt mixtures by nanofiltration membranes containing vinylsulphone dyes: effects of feed concentration and cross flow velocity
US5338553A (en)	1994-08-16	Process of treating water containing effluent from cheese-making operations
EP1177035B1 (de)	2005-04-27	Verfahren zur fraktionierung von in wasser löslichen oder dispergierbaren aminogruppenhaltigen polymeren mit breiter molmassenverteilung
US5773076A (en)	1998-06-30	Process for recovery of insoluble protein from steep water
DE17203086T1 (de)	2018-06-07	Fraktionierungsverfahren von löslichen substanzen von erbsen
CS137492A3 (en)	1992-11-18	Ultrafiltration processes of polymer latexes regeneration from verydiluted aqueous latex emulsion and apparats for making the same
US5968585A (en)	1999-10-19	Process for recovery of protein from aqueous media in corn wet milling
US6417251B1 (en)	2002-07-09	Ultrafiltration processes for the recovery of polymeric latices from whitewater
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Liu et al.	2014	Purification of hemicelluloses in pre-hydrolysis liquor of kraft-based dissolving pulp production process using activated carbon and ion-exchange resin adsorption followed by nanofiltration
Capar et al.	2007	The most effective pre-treatment to nanofiltration for the recovery of print dyeing wastewaters
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US4970001A (en)	1990-11-13	Use of chitosan to improve membrane filter performance
JP2002201267A (ja)	2002-07-19	水性ポリアミドアミン−エピクロロヒドリン樹脂の製造方法
Cséfalvay et al.	2008	Applicability of nanofiltration and reverse osmosis for the treatment of wastewater of different origin
NO170856B (no)	1992-09-07	Fremgangsmaate og anlegg for separasjon av syntetiske, vannopploeselige polymerer
RU2800851C2 (ru)	2023-07-31	Способ очищения лигнина
JP3162803B2 (ja)	2001-05-08	天然ゴム漿液の濃縮方法
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WO1992013463A1 (en)	1992-08-20	Membrane separation process and apparatus for the separation