FR2376883A1 - Procede de separation d'alcool polyvinylique de solutions aqueuses - Google Patents
Procede de separation d'alcool polyvinylique de solutions aqueusesInfo
- Publication number
- FR2376883A1 FR2376883A1 FR7800393A FR7800393A FR2376883A1 FR 2376883 A1 FR2376883 A1 FR 2376883A1 FR 7800393 A FR7800393 A FR 7800393A FR 7800393 A FR7800393 A FR 7800393A FR 2376883 A1 FR2376883 A1 FR 2376883A1
- Authority
- FR
- France
- Prior art keywords
- polyvinyl alcohol
- solution
- aqueous solutions
- earth metal
- metal hydroxide
- 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.)
- Granted
Links
- 239000004372 Polyvinyl alcohol Substances 0.000 title abstract 6
- 229920002451 polyvinyl alcohol Polymers 0.000 title abstract 6
- 239000007864 aqueous solution Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000000243 solution Substances 0.000 abstract 5
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 abstract 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 2
- 239000004327 boric acid Substances 0.000 abstract 2
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910000000 metal hydroxide Inorganic materials 0.000 abstract 1
- 150000004692 metal hydroxides Chemical class 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000012047 saturated solution Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
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)
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 (2)
| Publication Number | Publication Date |
|---|---|
| FR2376883A1 true FR2376883A1 (fr) | 1978-08-04 |
| FR2376883B1 FR2376883B1 (en:Method) | 1983-11-18 |
Family
ID=5998188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7800393A Granted FR2376883A1 (fr) | 1977-01-07 | 1978-01-09 | Procede de separation d'alcool polyvinylique de solutions aqueuses |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4166033A (en:Method) |
| BE (1) | BE862753A (en:Method) |
| CA (1) | CA1121549A (en:Method) |
| CH (1) | CH634801A5 (en:Method) |
| DE (1) | DE2700361A1 (en:Method) |
| ES (1) | ES465615A1 (en:Method) |
| FI (1) | FI780030A7 (en:Method) |
| FR (1) | FR2376883A1 (en:Method) |
| GB (1) | GB1577402A (en:Method) |
| NL (1) | NL7800226A (en:Method) |
| NO (1) | NO780057L (en:Method) |
| SE (1) | SE422806B (en:Method) |
Families Citing this family (3)
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE2557443A1 (de) * | 1974-12-20 | 1976-07-01 | Shikibo Ltd | Verfahren zur abtrennung von polyvinylalkohol aus loesungen und dafuer geeignete vorrichtung |
| FR2312460A1 (fr) * | 1975-05-28 | 1976-12-24 | Sando Iron Works Co | Procede de traitement d'eaux residuaires contenant de l'alcool polyvinylique et nouveaux produits ainsi obtenus |
| FR2313404A1 (fr) * | 1975-06-04 | 1976-12-31 | Sando Iron Works Co | Procede de recuperation d'alcool polyvinylique en solution aqueuse, dispositif utilise dans ce but et nouveau produit ainsi obtenu |
Family Cites Families (1)
| 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 |
-
1977
- 1977-01-07 DE DE19772700361 patent/DE2700361A1/de not_active Withdrawn
- 1977-12-30 ES ES465615A patent/ES465615A1/es not_active Expired
-
1978
- 1978-01-04 CH CH7578A patent/CH634801A5/de not_active IP Right Cessation
- 1978-01-04 SE SE7800120A patent/SE422806B/sv unknown
- 1978-01-05 FI FI780030A patent/FI780030A7/fi not_active Application Discontinuation
- 1978-01-05 US US05/867,141 patent/US4166033A/en not_active Expired - Lifetime
- 1978-01-06 NO NO780057A patent/NO780057L/no unknown
- 1978-01-06 NL NL7800226A patent/NL7800226A/xx not_active Application Discontinuation
- 1978-01-06 GB GB503/78A patent/GB1577402A/en not_active Expired
- 1978-01-06 CA CA000294476A patent/CA1121549A/en not_active Expired
- 1978-01-09 BE BE184198A patent/BE862753A/xx not_active IP Right Cessation
- 1978-01-09 FR FR7800393A patent/FR2376883A1/fr active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE2557443A1 (de) * | 1974-12-20 | 1976-07-01 | Shikibo Ltd | Verfahren zur abtrennung von polyvinylalkohol aus loesungen und dafuer geeignete vorrichtung |
| FR2312460A1 (fr) * | 1975-05-28 | 1976-12-24 | Sando Iron Works Co | Procede de traitement d'eaux residuaires contenant de l'alcool polyvinylique et nouveaux produits ainsi obtenus |
| FR2313404A1 (fr) * | 1975-06-04 | 1976-12-31 | Sando Iron Works Co | Procede de recuperation d'alcool polyvinylique en solution aqueuse, dispositif utilise dans ce but et nouveau produit ainsi obtenu |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2376883B1 (en:Method) | 1983-11-18 |
| CA1121549A (en) | 1982-04-06 |
| CH634801A5 (de) | 1983-02-28 |
| FI780030A7 (fi) | 1978-07-08 |
| DE2700361A1 (de) | 1978-07-13 |
| GB1577402A (en) | 1980-10-22 |
| SE422806B (sv) | 1982-03-29 |
| ES465615A1 (es) | 1978-09-16 |
| US4166033A (en) | 1979-08-28 |
| NL7800226A (nl) | 1978-07-11 |
| NO780057L (no) | 1978-07-10 |
| BE862753A (fr) | 1978-07-10 |
| SE7800120L (sv) | 1978-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |