CN103554314B - 一种高纯度聚乙烯醇的生产方法 - Google Patents
一种高纯度聚乙烯醇的生产方法 Download PDFInfo
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- CN103554314B CN103554314B CN201310553973.3A CN201310553973A CN103554314B CN 103554314 B CN103554314 B CN 103554314B CN 201310553973 A CN201310553973 A CN 201310553973A CN 103554314 B CN103554314 B CN 103554314B
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- polyvinyl alcohol
- reaction
- alcoholysis
- washing
- production method
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- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 50
- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000006136 alcoholysis reaction Methods 0.000 claims abstract description 52
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003513 alkali Substances 0.000 claims abstract description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 17
- 238000007127 saponification reaction Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 11
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000001291 vacuum drying Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract description 20
- 239000001632 sodium acetate Substances 0.000 abstract description 20
- 235000017281 sodium acetate Nutrition 0.000 abstract description 20
- 229920002689 polyvinyl acetate Polymers 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 3
- 239000012788 optical film Substances 0.000 abstract description 2
- 238000012958 reprocessing Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 abstract 2
- 239000011265 semifinished product Substances 0.000 abstract 2
- 229940079593 drug Drugs 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 229960004249 sodium acetate Drugs 0.000 description 19
- 239000007864 aqueous solution Substances 0.000 description 11
- 239000003960 organic solvent Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 5
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- KIDXYAWWICJAFK-UHFFFAOYSA-N O.[Na].OC Chemical compound O.[Na].OC KIDXYAWWICJAFK-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000005815 base catalysis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000004807 desolvation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
检测项目 | 实施例制备聚乙烯醇 | 同规格品种聚乙烯醇 |
醇解度 | 99.7% | 99.8% |
醋酸钠 | 0.25% | 2.3% |
挥发分 | 0.39% | 3.8% |
检测项目 | 实施例制备聚乙烯醇 | 同规格品种聚乙烯醇 |
醇解度 | 92.9% | 92.2% |
醋酸钠 | 0.26% | 2.1% |
挥发分 | 0.42% | 3.4% |
检测项目 | 实施例制备聚乙烯醇 | 同规格品种聚乙烯醇 |
醇解度 | 99.5% | 99.8% |
醋酸钠 | 0.31% | 2.3% |
挥发分 | 0.33% | 3.8% |
检测项目 | 实施例制备聚乙烯醇 | 同规格品种聚乙烯醇 |
醇解度 | 97.7% | 98.3% |
醋酸钠 | 0.28% | 2.0% |
挥发分 | 0.35% | 3.2% |
检测项目 | 实施例制备聚乙烯醇 | 同规格品种聚乙烯醇 |
醇解度 | 99.8% | 99.8% |
醋酸钠 | 0.21% | 2.3% |
挥发分 | 0.45% | 3.8% |
Claims (5)
Priority Applications (1)
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CN201310553973.3A CN103554314B (zh) | 2013-11-08 | 2013-11-08 | 一种高纯度聚乙烯醇的生产方法 |
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CN201310553973.3A CN103554314B (zh) | 2013-11-08 | 2013-11-08 | 一种高纯度聚乙烯醇的生产方法 |
Publications (2)
Publication Number | Publication Date |
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CN103554314A CN103554314A (zh) | 2014-02-05 |
CN103554314B true CN103554314B (zh) | 2015-12-02 |
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CN201310553973.3A Active CN103554314B (zh) | 2013-11-08 | 2013-11-08 | 一种高纯度聚乙烯醇的生产方法 |
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106279479A (zh) * | 2015-06-09 | 2017-01-04 | 中国石油化工集团公司 | 一种提高产品聚乙烯醇醇解度的方法 |
CN105837710A (zh) * | 2016-03-31 | 2016-08-10 | 温州小伦包衣技术有限公司 | 药用聚乙烯醇的制备方法及其药用聚乙烯醇与应用 |
CN106188354B (zh) * | 2016-08-10 | 2018-10-30 | 安徽皖维高新材料股份有限公司 | 一种具有高效分散稳定性能的聚乙烯醇分散剂的制备方法 |
CN106749802B (zh) * | 2017-02-23 | 2019-11-05 | 重庆云天化瀚恩新材料开发有限公司 | 一种高聚合度窄分布聚乙烯醇的制备方法及制备系统 |
CN107151283B (zh) * | 2017-05-27 | 2020-10-27 | 中国石油化工集团公司 | 一种光学材料专用聚乙烯醇的制备方法 |
CN108164660B (zh) * | 2017-12-27 | 2018-11-09 | 湖南师范大学 | 聚乙烯醇材料及其制备方法 |
CN109320635A (zh) * | 2018-11-08 | 2019-02-12 | 重庆云天化瀚恩新材料开发有限公司 | 一种高醇解度、窄分子量分布的聚乙烯醇的制备方法 |
CN110066353A (zh) * | 2019-04-19 | 2019-07-30 | 江西阿尔法高科药业有限公司 | 一种聚乙烯醇的纯化方法 |
CN110734513A (zh) * | 2019-10-11 | 2020-01-31 | 振德医疗用品股份有限公司 | 一种高醇解度聚乙烯醇树脂的制备方法 |
CN111072824A (zh) * | 2019-12-30 | 2020-04-28 | 内蒙古蒙维科技有限公司 | 一种低灰分低醇解度聚乙烯醇的制备方法 |
CN112545404B (zh) * | 2020-12-08 | 2022-05-17 | 湖北魔洗高新材料制品有限公司 | 一种制备pva胶棉头高效生产的改进方法 |
CN112592418B (zh) * | 2020-12-14 | 2023-10-27 | 安徽皖维高新材料股份有限公司 | 一种光学膜专用聚乙烯醇的制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0942008A1 (en) * | 1998-03-11 | 1999-09-15 | Air Products And Chemicals, Inc. | A continuous process for the preparation of poly(vinyl acetate) for poly(vinyl alcohol) production |
CN102020735A (zh) * | 2009-09-17 | 2011-04-20 | 中国石油化工集团公司 | 一种聚乙烯醇的纯化方法 |
CN102731708A (zh) * | 2012-06-13 | 2012-10-17 | 安徽皖维集团有限责任公司 | 一种高醇解度聚乙烯醇的制备方法 |
CN102731696A (zh) * | 2012-06-13 | 2012-10-17 | 安徽皖维集团有限责任公司 | 一种低灰分聚乙烯醇的制备方法 |
-
2013
- 2013-11-08 CN CN201310553973.3A patent/CN103554314B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0942008A1 (en) * | 1998-03-11 | 1999-09-15 | Air Products And Chemicals, Inc. | A continuous process for the preparation of poly(vinyl acetate) for poly(vinyl alcohol) production |
CN102020735A (zh) * | 2009-09-17 | 2011-04-20 | 中国石油化工集团公司 | 一种聚乙烯醇的纯化方法 |
CN102731708A (zh) * | 2012-06-13 | 2012-10-17 | 安徽皖维集团有限责任公司 | 一种高醇解度聚乙烯醇的制备方法 |
CN102731696A (zh) * | 2012-06-13 | 2012-10-17 | 安徽皖维集团有限责任公司 | 一种低灰分聚乙烯醇的制备方法 |
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Denomination of invention: Production method of high-purity polyvinyl alcohol Effective date of registration: 20161214 Granted publication date: 20151202 Pledgee: Industrial Bank Limited by Share Ltd Chaohu branch Pledgor: Anhui Wanwei Group Co., Ltd. Registration number: 2016990001107 |
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Denomination of invention: Production method of high-purity polyvinyl alcohol Effective date of registration: 20171227 Granted publication date: 20151202 Pledgee: Industrial Bank Limited by Share Ltd Chaohu branch Pledgor: Anhui Wanwei Group Co., Ltd. Registration number: 2017340000485 |
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Denomination of invention: A production method of high purity polyvinyl alcohol Effective date of registration: 20201209 Granted publication date: 20151202 Pledgee: Industrial Bank Limited by Share Ltd. Chaohu branch Pledgor: ANHUI WANWEI GROUP Co.,Ltd. Registration number: Y2020980009052 |
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Effective date of registration: 20220507 Address after: 230088 floors 1-2, building 5, pilot Science Park, No. 128, Wanshui Road, Yonghe community, high tech Zone, Hefei, Anhui Province Patentee after: Anhui wanwei advanced functional membrane material Research Institute Co.,Ltd. Address before: No. 56, nest Wei Road, Chaohu City, Hefei, Anhui Patentee before: ANHUI WANWEI GROUP Co.,Ltd. |
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