FI108449B - F÷rfarande f÷r koncentrering av latexdispersioner - Google Patents

F÷rfarande f÷r koncentrering av latexdispersioner Download PDF

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Publication number
FI108449B
FI108449B FI923556A FI923556A FI108449B FI 108449 B FI108449 B FI 108449B FI 923556 A FI923556 A FI 923556A FI 923556 A FI923556 A FI 923556A FI 108449 B FI108449 B FI 108449B
Authority
FI
Finland
Prior art keywords
latex
membranes
daltons
process according
stage
Prior art date
Application number
FI923556A
Other languages
English (en)
Finnish (fi)
Other versions
FI923556A0 (fi
FI923556A (fi
Inventor
Henning Bachem
Anno Borkowsky
Heinrich Grave
Dietrich Tegtmeyer
Der Linden Bernd Von
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of FI923556A0 publication Critical patent/FI923556A0/fi
Publication of FI923556A publication Critical patent/FI923556A/fi
Application granted granted Critical
Publication of FI108449B publication Critical patent/FI108449B/sv

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
    • C08C1/075—Concentrating
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/14—Treatment of polymer emulsions
    • C08F6/20—Concentration
    • 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
    • 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
    • B01D61/027—Nanofiltration
    • 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
    • B01D61/147—Microfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Claims (7)

1. Förfarande för koncentrering av latexdisper-sioner, kännetecknat av att latexdispersionen 5 koncentreras i en tvästegstvärströmsfiltrering först vid ett tryck av 2 - 7 bar och en temperatur av 20 - 70 °C vid turbulent strömning, varefter det sä erhällna permeatet med den däri befintliga emulgatorn koncentreras likasä vid ett tryck av 10 - 40 bar och en temperatur av 20 - 50 °C 10 och det erhällna koncentratet med emulgatorn äterförs tili tvärströmsfiltreringens första steg.
2. Förfarande enligt patentkrav 1, kännetecknat av att i det första steget utförs en ultrafiltrering, varvid membraner med separationsgrän- 15 ser mellan 1 000 - 150 000 dalton används.
3. Förfarande enligt patentkrav 1, kännetecknat av att i det första steget utförs en mikrofiltrering, varvid membraner med porstorlekar mellan 0,01 - 0,5 μτα används. 20
4. Förfarande enligt nägot av patentkrav 1-3, kännetecknat av att i det andra steget utförs en reversosmos, varvid membraner med separationstorlekar < 150 dalton används.
\ 5. Förfarande enligt nägot av patentkrav 1-3, 25 kännetecknat av att i det andra steget utförs • · en nanofiltrering, varvid membraner med separationstorle- ;*V kar mellan 150 - 1 000 dalton används. t
* · • ·* 6. Förfarande enligt nägot av patentkrav 1-3, • · · '· kännetecknat av att man koncentrerar latexdis- ··♦ ·.· · 30 persioner, vars latexandel i dispersionen är 0,01 - 50 vikt-%.
·:♦·: 7. Förfarande enligt patentkrav 1, kännetecknat av att vid koncentrering av la-texhaltiga avloppsvatten med latexkoncentrationer mellan 35 0,1-5 vikt-% äterförs det i det första steger erhällna koncentratet tili latextillverkningsprocessen.
FI923556A 1991-08-10 1992-08-07 F÷rfarande f÷r koncentrering av latexdispersioner FI108449B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4126483A DE4126483A1 (de) 1991-08-10 1991-08-10 Verfahren zur aufkonzentrierung von latex-dispersionen
DE4126483 1991-08-10

Publications (3)

Publication Number Publication Date
FI923556A0 FI923556A0 (fi) 1992-08-07
FI923556A FI923556A (fi) 1993-02-11
FI108449B true FI108449B (sv) 2002-01-31

Family

ID=6438056

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923556A FI108449B (sv) 1991-08-10 1992-08-07 F÷rfarande f÷r koncentrering av latexdispersioner

Country Status (6)

Country Link
US (1) US5242596A (sv)
EP (1) EP0527386B1 (sv)
JP (1) JP3183720B2 (sv)
CA (1) CA2075607C (sv)
DE (2) DE4126483A1 (sv)
FI (1) FI108449B (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9316740D0 (en) * 1993-08-12 1993-09-29 North West Water Group Plc Process for treating latex-containing waste water
DE4406952A1 (de) * 1994-03-03 1995-09-07 Bayer Ag Verfahren zur Aufkonzentration von Lackoverspray
US5534133A (en) * 1994-11-17 1996-07-09 Ucar Carbon Technology Corporation Continuous method for increasing the Q. I. concentration of liquid tar while concurrently producing a Q. I. free tar
DE19851676A1 (de) 1998-11-10 2000-05-11 Bayer Ag Thermoplastische Formmassen mit verbesserten mechanischen Eigenschaften
AU3935700A (en) * 1999-06-21 2001-01-04 Rohm And Haas Company Ultrafiltration processes for the recovery of polymeric latices from whitewater
ES2248339T3 (es) * 2000-06-02 2006-03-16 Lanxess Deutschland Gmbh Masas de moldeo termoplasticas con propiedades superficiales mejoradas asi como con homegeneidad estructural mejorada.
DE10145097A1 (de) * 2001-09-13 2003-04-03 Bayer Ag Verfahren zur Aufkonzentrierung von Polymerlatices
DE10255824A1 (de) 2002-11-29 2004-06-09 Bayer Ag Schlagzähmodifizierte Blends
DE10255825A1 (de) * 2002-11-29 2004-06-09 Bayer Ag Blends mit verbesserten Eigenschaften
AU2007263813B2 (en) 2006-06-26 2012-09-13 Basf Se Method for producing aqueous polymer dispersion
US10105478B2 (en) 2012-01-24 2018-10-23 Koninklijke Philips N.V. Analysis cartridge with filter unit
WO2019115420A1 (en) 2017-12-11 2019-06-20 Ineos Styrolution Group Gmbh Process for production of impact modified thermoplastic moulding composition with improved processing and impact strength

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160726A (en) * 1976-05-07 1979-07-10 Abcor, Inc. Ultrafiltration process for the concentration of polymeric latices
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

Also Published As

Publication number Publication date
FI923556A0 (fi) 1992-08-07
JPH07196727A (ja) 1995-08-01
DE4126483A1 (de) 1993-02-11
DE59202683D1 (de) 1995-08-03
US5242596A (en) 1993-09-07
FI923556A (fi) 1993-02-11
EP0527386B1 (de) 1995-06-28
EP0527386A1 (de) 1993-02-17
CA2075607A1 (en) 1993-02-11
CA2075607C (en) 2003-10-28
JP3183720B2 (ja) 2001-07-09

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