JP2002155011A5 - - Google Patents
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- Publication number
- JP2002155011A5 JP2002155011A5 JP2000347845A JP2000347845A JP2002155011A5 JP 2002155011 A5 JP2002155011 A5 JP 2002155011A5 JP 2000347845 A JP2000347845 A JP 2000347845A JP 2000347845 A JP2000347845 A JP 2000347845A JP 2002155011 A5 JP2002155011 A5 JP 2002155011A5
- Authority
- JP
- Japan
- Prior art keywords
- acid
- terephthalic acid
- reaction
- heating
- solvent
- 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
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000006386 neutralization reaction Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- VIQSRHWJEKERKR-UHFFFAOYSA-L disodium;terephthalate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 VIQSRHWJEKERKR-UHFFFAOYSA-L 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347845A JP3942817B2 (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回収方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000347845A JP3942817B2 (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回収方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002155011A JP2002155011A (ja) | 2002-05-28 |
| JP2002155011A5 true JP2002155011A5 (enExample) | 2005-04-07 |
| JP3942817B2 JP3942817B2 (ja) | 2007-07-11 |
Family
ID=18821517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000347845A Expired - Fee Related JP3942817B2 (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回収方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3942817B2 (enExample) |
-
2000
- 2000-11-15 JP JP2000347845A patent/JP3942817B2/ja not_active Expired - Fee Related
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