JP3889219B2 - 回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法及び装置 - Google Patents
回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法及び装置 Download PDFInfo
- Publication number
- JP3889219B2 JP3889219B2 JP2000347847A JP2000347847A JP3889219B2 JP 3889219 B2 JP3889219 B2 JP 3889219B2 JP 2000347847 A JP2000347847 A JP 2000347847A JP 2000347847 A JP2000347847 A JP 2000347847A JP 3889219 B2 JP3889219 B2 JP 3889219B2
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- terephthalate
- terephthalic acid
- recovered
- polyethylene terephthalate
- 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 - Fee Related
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims description 96
- 229920000139 polyethylene terephthalate Polymers 0.000 title claims description 48
- 239000005020 polyethylene terephthalate Substances 0.000 title claims description 48
- 238000000034 method Methods 0.000 title claims description 31
- -1 polyethylene terephthalate Polymers 0.000 title claims description 20
- 238000011084 recovery Methods 0.000 title claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 73
- 238000000354 decomposition reaction Methods 0.000 claims description 71
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims description 58
- 239000002904 solvent Substances 0.000 claims description 57
- 238000003756 stirring Methods 0.000 claims description 41
- 239000002002 slurry Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000003513 alkali Substances 0.000 claims description 26
- 239000007787 solid Substances 0.000 claims description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- 230000006837 decompression Effects 0.000 claims description 21
- 238000001704 evaporation Methods 0.000 claims description 18
- 238000000197 pyrolysis Methods 0.000 claims description 18
- 230000008020 evaporation Effects 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 4
- 238000000926 separation method Methods 0.000 description 33
- 239000000047 product Substances 0.000 description 29
- 238000005406 washing Methods 0.000 description 22
- 239000007788 liquid Substances 0.000 description 18
- 238000004090 dissolution Methods 0.000 description 17
- 239000000706 filtrate Substances 0.000 description 17
- 239000012535 impurity Substances 0.000 description 17
- 238000006386 neutralization reaction Methods 0.000 description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000002253 acid Substances 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 12
- 239000013078 crystal Substances 0.000 description 12
- 238000003828 vacuum filtration Methods 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 150000001447 alkali salts Chemical class 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 238000001556 precipitation Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000004744 fabric Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- QPKOBORKPHRBPS-UHFFFAOYSA-N bis(2-hydroxyethyl) terephthalate Chemical compound OCCOC(=O)C1=CC=C(C(=O)OCCO)C=C1 QPKOBORKPHRBPS-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000034659 glycolysis Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 238000006140 methanolysis reaction Methods 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Images
Classifications
-
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347847A JP3889219B2 (ja) | 2000-11-15 | 2000-11-15 | 回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法及び装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347847A JP3889219B2 (ja) | 2000-11-15 | 2000-11-15 | 回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法及び装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002155019A JP2002155019A (ja) | 2002-05-28 |
| JP2002155019A5 JP2002155019A5 (https=) | 2005-04-07 |
| JP3889219B2 true JP3889219B2 (ja) | 2007-03-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000347847A Expired - Fee Related JP3889219B2 (ja) | 2000-11-15 | 2000-11-15 | 回収ポリエチレンテレフタレート粉砕品からのテレフタル酸の工業的回収方法及び装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3889219B2 (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014097441A (ja) * | 2012-11-13 | 2014-05-29 | Mitsui Zosen Plant Engineering Inc | ペットフレークの洗浄処理方法 |
| CN114787233B (zh) | 2019-10-08 | 2024-08-27 | 伊士曼化工公司 | 用于具有回收料含量的可结晶反应器级树脂的催化剂体系 |
| US20220348715A1 (en) * | 2019-10-25 | 2022-11-03 | Eastman Chemical Company | Copolyesters produced from recycled copolyesters |
| EP3835023A1 (de) * | 2019-12-13 | 2021-06-16 | Lenzing Aktiengesellschaft | Verfahren zur verwertung von inhaltsstoffen aus mischtextilabfällen |
-
2000
- 2000-11-15 JP JP2000347847A patent/JP3889219B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002155019A (ja) | 2002-05-28 |
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