ES465615A1 - Procedimiento para la separacion de alcohol polivinilico de soluciones acuosas. - Google Patents

Procedimiento para la separacion de alcohol polivinilico de soluciones acuosas.

Info

Publication number
ES465615A1
ES465615A1 ES465615A ES465615A ES465615A1 ES 465615 A1 ES465615 A1 ES 465615A1 ES 465615 A ES465615 A ES 465615A ES 465615 A ES465615 A ES 465615A ES 465615 A1 ES465615 A1 ES 465615A1
Authority
ES
Spain
Prior art keywords
polyvinyl alcohol
separation
aqueous solutions
precipitation
earth metal
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
ES465615A
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.)
Hoechst AG
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 ES465615A1 publication Critical patent/ES465615A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised 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
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics 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)
ES465615A 1977-01-07 1977-12-30 Procedimiento para la separacion de alcohol polivinilico de soluciones acuosas. Expired ES465615A1 (es)

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
ES465615A1 true ES465615A1 (es) 1978-09-16

Family

ID=5998188

Family Applications (1)

Application Number Title Priority Date Filing Date
ES465615A Expired ES465615A1 (es) 1977-01-07 1977-12-30 Procedimiento para la separacion de alcohol polivinilico de soluciones acuosas.

Country Status (12)

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

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
NL7800226A (nl) 1978-07-11
FI780030A (fi) 1978-07-08
BE862753A (fr) 1978-07-10
SE7800120L (sv) 1978-07-08
NO780057L (no) 1978-07-10
GB1577402A (en) 1980-10-22
FR2376883B1 (es) 1983-11-18
CH634801A5 (de) 1983-02-28
DE2700361A1 (de) 1978-07-13
SE422806B (sv) 1982-03-29
US4166033A (en) 1979-08-28
FR2376883A1 (fr) 1978-08-04
CA1121549A (en) 1982-04-06

Similar Documents

Publication Publication Date Title
ES8701855A1 (es) Procedimiento de extraccion de arsenico de soluciones acidas
ES465615A1 (es) Procedimiento para la separacion de alcohol polivinilico de soluciones acuosas.
JPS51146758A (en) Process for treating a drain water containing polyvinyl alcohol
JPS5413509A (en) Method of purification of oil
JPS52126064A (en) Process for treating waste water of regenerated paper production
JPS5319675A (en) Batch type microorganisms reaction tank
CA2014891A1 (en) Sodium borohydride/sodium aluminate
ES8200400A1 (es) Un procedimiento para obtener acido d(-)-beta-hidroxiisobu- tirico
JPS5254076A (en) Method of assimilating polyvinyl alcohol
JPS53113161A (en) Dewatering method for sludge
JPS52133076A (en) Reforming of aluminium sludge
JPS5337578A (en) Collecting method for heavy metals
JPS51133347A (en) A process for utilizing waste water containing polyvinyl alcohol (pva)
JPS52108659A (en) Process for treating desized waste water
JPS51121486A (en) Process for treating hemicellulose-containing aqueous alkaline solutio ns
JPS5252464A (en) Method of treating wastewater
JPS555744A (en) Controlling method for interface of flocculator
JPS51128472A (en) Process for assimilating and decomposing polyvinyl alcohol by the use of microorganisms
JPS51148964A (en) Method and device for recovering polyvinyl alcohol from aqueous s olution thereof
JPS5387348A (en) Method of purifying tetrahydrofuran
JPS5730594A (en) Disposal of ash sludge from dust incinerator
JPS5235449A (en) Disposal method for industrial waste containing compound chromium
JPS5244350A (en) Pressure recovering device used for a wave-energy transforming unit
JPS5219463A (en) Method of treating sludge containing heavy metal
JPS5362778A (en) Treating method for waste solution containing heavy metal

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001