JPH0442374B2 - - Google Patents
Info
- Publication number
- JPH0442374B2 JPH0442374B2 JP11052385A JP11052385A JPH0442374B2 JP H0442374 B2 JPH0442374 B2 JP H0442374B2 JP 11052385 A JP11052385 A JP 11052385A JP 11052385 A JP11052385 A JP 11052385A JP H0442374 B2 JPH0442374 B2 JP H0442374B2
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- acid
- tetrafluorophthalic
- reaction
- tetrafluorophthalonitrile
- 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
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 72
- 238000006243 chemical reaction Methods 0.000 claims description 30
- YJLVXRPNNDKMMO-UHFFFAOYSA-N 3,4,5,6-tetrafluorophthalic acid Chemical compound OC(=O)C1=C(F)C(F)=C(F)C(F)=C1C(O)=O YJLVXRPNNDKMMO-UHFFFAOYSA-N 0.000 claims description 25
- OFLRJMBSWDXSPG-UHFFFAOYSA-N 3,4,5,6-tetrafluorobenzene-1,2-dicarbonitrile Chemical compound FC1=C(F)C(F)=C(C#N)C(C#N)=C1F OFLRJMBSWDXSPG-UHFFFAOYSA-N 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 17
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 13
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 13
- 235000011130 ammonium sulphate Nutrition 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012736 aqueous medium Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000002244 precipitate Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- -1 3,4,5,6-tetrafluorophthalic acid (3,4,5,6-tetrafluorophthalic acid) Chemical compound 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 description 1
- 229920006391 phthalonitrile polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11052385A JPS61268649A (ja) | 1985-05-24 | 1985-05-24 | ３，４，５，６−テトラフルオロフタル酸の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11052385A JPS61268649A (ja) | 1985-05-24 | 1985-05-24 | ３，４，５，６−テトラフルオロフタル酸の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61268649A JPS61268649A (ja) | 1986-11-28 |
| JPH0442374B2 true JPH0442374B2 (pt) | 1992-07-13 |
Family
ID=14537956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11052385A Granted JPS61268649A (ja) | 1985-05-24 | 1985-05-24 | ３，４，５，６−テトラフルオロフタル酸の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61268649A (pt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111909035B (zh) * | 2020-08-18 | 2024-01-16 | 周敏 | 一种降低废弃物排放的四氟对苯二酸的制备方法 |
-
1985
- 1985-05-24 JP JP11052385A patent/JPS61268649A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61268649A (ja) | 1986-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |