JPH0436143B2 - - Google Patents
Info
- Publication number
- JPH0436143B2 JPH0436143B2 JP15808483A JP15808483A JPH0436143B2 JP H0436143 B2 JPH0436143 B2 JP H0436143B2 JP 15808483 A JP15808483 A JP 15808483A JP 15808483 A JP15808483 A JP 15808483A JP H0436143 B2 JPH0436143 B2 JP H0436143B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- terephthalic acid
- sulfuric acid
- crystals
- svi
- 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
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 62
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 15
- -1 alkali metal salt Chemical class 0.000 claims description 9
- 238000003916 acid precipitation Methods 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 238000010494 dissociation reaction Methods 0.000 description 5
- 230000005593 dissociations Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- VIQSRHWJEKERKR-UHFFFAOYSA-L disodium;terephthalate Chemical group [Na+].[Na+].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 VIQSRHWJEKERKR-UHFFFAOYSA-L 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15808483A JPS6051145A (ja) | 1983-08-31 | 1983-08-31 | テレフタル酸の回収方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15808483A JPS6051145A (ja) | 1983-08-31 | 1983-08-31 | テレフタル酸の回収方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6051145A JPS6051145A (ja) | 1985-03-22 |
| JPH0436143B2 true JPH0436143B2 (sv) | 1992-06-15 |
Family
ID=15663942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15808483A Granted JPS6051145A (ja) | 1983-08-31 | 1983-08-31 | テレフタル酸の回収方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051145A (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623129B2 (ja) * | 1986-02-28 | 1994-03-30 | 三井東圧化学株式会社 | 桂皮酸類の製法 |
| JPH078822B2 (ja) * | 1986-05-26 | 1995-02-01 | 三菱レイヨン株式会社 | フタル酸の回収方法 |
| US7915447B2 (en) | 2006-07-19 | 2011-03-29 | Showa Denko K.K. | Process for producing succinic acid |
| JP5052234B2 (ja) * | 2006-07-19 | 2012-10-17 | 昭和電工株式会社 | コハク酸の製造方法 |
| 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 |
-
1983
- 1983-08-31 JP JP15808483A patent/JPS6051145A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051145A (ja) | 1985-03-22 |
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