CH634801A5 - Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen. - Google Patents

Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen. Download PDF

Info

Publication number
CH634801A5
CH634801A5 CH7578A CH7578A CH634801A5 CH 634801 A5 CH634801 A5 CH 634801A5 CH 7578 A CH7578 A CH 7578A CH 7578 A CH7578 A CH 7578A CH 634801 A5 CH634801 A5 CH 634801A5
Authority
CH
Switzerland
Prior art keywords
pval
solution
alkaline earth
earth metal
polyvinyl alcohol
Prior art date
Application number
CH7578A
Other languages
German (de)
English (en)
Inventor
Wolfgang Dr Zimmermann
Hermann Dr Schindler
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH634801A5 publication Critical patent/CH634801A5/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/06Recovery or working-up of waste materials of polymers without chemical reactions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH7578A 1977-01-07 1978-01-04 Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen. CH634801A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772700361 DE2700361A1 (de) 1977-01-07 1977-01-07 Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen

Publications (1)

Publication Number Publication Date
CH634801A5 true CH634801A5 (de) 1983-02-28

Family

ID=5998188

Family Applications (1)

Application Number Title Priority Date Filing Date
CH7578A CH634801A5 (de) 1977-01-07 1978-01-04 Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen.

Country Status (12)

Country Link
US (1) US4166033A (US06244707-20010612-C00011.png)
BE (1) BE862753A (US06244707-20010612-C00011.png)
CA (1) CA1121549A (US06244707-20010612-C00011.png)
CH (1) CH634801A5 (US06244707-20010612-C00011.png)
DE (1) DE2700361A1 (US06244707-20010612-C00011.png)
ES (1) ES465615A1 (US06244707-20010612-C00011.png)
FI (1) FI780030A (US06244707-20010612-C00011.png)
FR (1) FR2376883A1 (US06244707-20010612-C00011.png)
GB (1) GB1577402A (US06244707-20010612-C00011.png)
NL (1) NL7800226A (US06244707-20010612-C00011.png)
NO (1) NO780057L (US06244707-20010612-C00011.png)
SE (1) SE422806B (US06244707-20010612-C00011.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141777A1 (de) * 1991-12-18 1993-06-24 Hoechst Ag Verfahren zur faellung waessriger, polyvinylalkoholhaltiger kunststoffdispersionen
KR100783754B1 (ko) 2006-12-14 2007-12-07 (주) 테크윈 Pva가 포함된 폐수의 화학 및 생물학적 처리방법 및 그장치
CN114394693A (zh) * 2022-01-22 2022-04-26 安徽科技学院 一种工业含油废水的澄清处理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761406A (en) * 1971-01-08 1973-09-25 Grace W R & Co Flocculation and demulsification using cationic polyvinyl alcohols
DE2309479A1 (de) * 1973-02-26 1974-08-29 Passavant Werke Rechenreiniger fuer in abwassergerinnen od. dgl. angeordnete rechen mit einer auf einer geschlossenen bahn gefuehrten harke
JPS5173756A (en) * 1974-12-20 1976-06-25 Shikibo Ltd Suiyoekikara horibiniruarukooruo bunrisuruhoho
JPS51146758A (en) * 1975-05-28 1976-12-16 Sando Iron Works Co Ltd Process for treating a drain water containing polyvinyl alcohol
JPS51148964A (en) * 1975-06-04 1976-12-21 Sando Iron Works Co Ltd Method and device for recovering polyvinyl alcohol from aqueous s olution thereof

Also Published As

Publication number Publication date
GB1577402A (en) 1980-10-22
DE2700361A1 (de) 1978-07-13
SE7800120L (sv) 1978-07-08
NO780057L (no) 1978-07-10
SE422806B (sv) 1982-03-29
FI780030A (fi) 1978-07-08
FR2376883A1 (fr) 1978-08-04
FR2376883B1 (US06244707-20010612-C00011.png) 1983-11-18
US4166033A (en) 1979-08-28
BE862753A (fr) 1978-07-10
ES465615A1 (es) 1978-09-16
CA1121549A (en) 1982-04-06
NL7800226A (nl) 1978-07-11

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