JP2002155020A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2002155020A5 JP2002155020A5 JP2000347848A JP2000347848A JP2002155020A5 JP 2002155020 A5 JP2002155020 A5 JP 2002155020A5 JP 2000347848 A JP2000347848 A JP 2000347848A JP 2000347848 A JP2000347848 A JP 2000347848A JP 2002155020 A5 JP2002155020 A5 JP 2002155020A5
- Authority
- JP
- Japan
- Prior art keywords
- acid
- terephthalic acid
- slurry
- neutralization
- dissolver
- 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
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 24
- 239000002253 acid Substances 0.000 description 8
- 238000006386 neutralization reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Images
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347848A JP3917811B2 (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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347848A JP3917811B2 (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 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002155020A JP2002155020A (ja) | 2002-05-28 |
| JP2002155020A5 true JP2002155020A5 (cg-RX-API-DMAC10.html) | 2005-04-07 |
| JP3917811B2 JP3917811B2 (ja) | 2007-05-23 |
Family
ID=18821520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000347848A Expired - Lifetime JP3917811B2 (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 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3917811B2 (cg-RX-API-DMAC10.html) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4338119B2 (ja) * | 2002-11-01 | 2009-10-07 | 月島機械株式会社 | 被処理液循環型掻取式晶析装置 |
| DK1710226T3 (da) * | 2004-01-27 | 2009-10-05 | Univ Iberoamericana A C | Kemisk fremgangsmåde til genanvendelse af polyethylenterephthalataffald (PET) |
| JP2006036688A (ja) * | 2004-07-27 | 2006-02-09 | Mitsui Chemicals Inc | ポリエチレンテレフタレートから回収された高純度の原料モノマー及びその製造方法 |
| JP4637551B2 (ja) * | 2004-10-13 | 2011-02-23 | アースリサイクル株式会社 | Pvc(塩化ビニリデンも),petを含む混合プラスチックやアルミ複合フイルム等から有用物質の分離法 |
| JP4754237B2 (ja) * | 2005-02-23 | 2011-08-24 | パナソニック電工株式会社 | プラスチックの分解方法 |
| JP2006241380A (ja) * | 2005-03-04 | 2006-09-14 | Matsushita Electric Works Ltd | プラスチックの分解方法 |
| JP2008133398A (ja) * | 2006-11-29 | 2008-06-12 | Toshiba Corp | Petを含む樹脂の熱分解油化処理装置 |
| CN108276274B (zh) * | 2018-03-07 | 2020-10-23 | 太原理工大学 | 一种利用有色涤纶织物制备对苯二甲酸的方法 |
| TWI708761B (zh) * | 2019-09-26 | 2020-11-01 | 遠東新世紀股份有限公司 | 製造對苯二甲酸的方法 |
| IT202000008935A1 (it) * | 2020-04-24 | 2021-10-24 | Garbo S R L | Processo per depolimerizzare polietilene tereftalato (pet) tramite glicolisi, e relativo impianto per la sua realizzazione. |
| JP7531056B2 (ja) | 2021-07-19 | 2024-08-08 | エルジー・ケム・リミテッド | リサイクルプラスチック合成用単量体組成物、その製造方法、およびそれを用いたリサイクルプラスチック、成形品および可塑剤組成物 |
| JP7849216B2 (ja) * | 2022-04-28 | 2026-04-21 | キリンホールディングス株式会社 | テレフタル酸の回収方法 |
| CH720900A1 (de) * | 2023-06-29 | 2025-01-15 | Depoly Sa | Kristallisationsverfahren für gereinigte Terephthalsäure |
| EP4748821A1 (en) * | 2024-11-26 | 2026-05-27 | DePoly SA | Crystallization method for purified terephthalic acid |
-
2000
- 2000-11-15 JP JP2000347848A patent/JP3917811B2/ja not_active Expired - Lifetime