CA1121549A - Process for the separation of polyvinyl alcohol from aqueous solutions - Google Patents
Process for the separation of polyvinyl alcohol from aqueous solutionsInfo
- Publication number
- CA1121549A CA1121549A CA000294476A CA294476A CA1121549A CA 1121549 A CA1121549 A CA 1121549A CA 000294476 A CA000294476 A CA 000294476A CA 294476 A CA294476 A CA 294476A CA 1121549 A CA1121549 A CA 1121549A
- Authority
- CA
- Canada
- Prior art keywords
- solution
- pval
- earth metal
- polyvinyl alcohol
- alkaline earth
- 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
Links
- 229920002451 polyvinyl alcohol Polymers 0.000 title claims description 73
- 238000000034 method Methods 0.000 title claims description 21
- 239000007864 aqueous solution Substances 0.000 title claims description 19
- 239000004372 Polyvinyl alcohol Substances 0.000 title claims description 14
- 238000000926 separation method Methods 0.000 title claims description 8
- 239000000243 solution Substances 0.000 claims description 75
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 23
- 239000004327 boric acid Substances 0.000 claims description 16
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 13
- 229940068984 polyvinyl alcohol Drugs 0.000 claims description 13
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 12
- 239000000920 calcium hydroxide Substances 0.000 claims description 10
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 6
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 239000012047 saturated solution Substances 0.000 claims 1
- 230000001376 precipitating effect Effects 0.000 description 14
- 238000000746 purification Methods 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 10
- 235000011116 calcium hydroxide Nutrition 0.000 description 9
- 229940095643 calcium hydroxide Drugs 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 238000007792 addition Methods 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- -1 alkali metal salt Chemical class 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000001465 calcium Nutrition 0.000 description 2
- 229960005069 calcium Drugs 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241001237728 Precis Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229940063013 borate ion Drugs 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229960000443 hydrochloric acid Drugs 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- VLCLHFYFMCKBRP-UHFFFAOYSA-N tricalcium;diborate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]B([O-])[O-].[O-]B([O-])[O-] VLCLHFYFMCKBRP-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772700361 DE2700361A1 (de) | 1977-01-07 | 1977-01-07 | Verfahren zur abtrennung von polyvinylalkohol aus waessrigen loesungen |
| DEP2700361.8 | 1977-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121549A true CA1121549A (en) | 1982-04-06 |
Family
ID=5998188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000294476A Expired CA1121549A (en) | 1977-01-07 | 1978-01-06 | Process for the separation of polyvinyl alcohol from aqueous solutions |
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 |
Family Cites Families (5)
| 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 |
-
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
Also Published As
| Publication number | Publication date |
|---|---|
| FR2376883B1 (en:Method) | 1983-11-18 |
| FR2376883A1 (fr) | 1978-08-04 |
| 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 |
|---|---|---|---|
| MKEX | Expiry |