JPH0442389B2 - - Google Patents
Info
- Publication number
- JPH0442389B2 JPH0442389B2 JP60054257A JP5425785A JPH0442389B2 JP H0442389 B2 JPH0442389 B2 JP H0442389B2 JP 60054257 A JP60054257 A JP 60054257A JP 5425785 A JP5425785 A JP 5425785A JP H0442389 B2 JPH0442389 B2 JP H0442389B2
- Authority
- JP
- Japan
- Prior art keywords
- pyromellitic anhydride
- mixed gas
- organic medium
- temperature
- collecting
- 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 - Lifetime
Links
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 84
- 238000000034 method Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 22
- 239000013078 crystal Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- -1 aromatic nitrile Chemical class 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 58
- 239000002609 medium Substances 0.000 description 30
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 23
- SQNZJJAZBFDUTD-UHFFFAOYSA-N durene Chemical compound CC1=CC(C)=C(C)C=C1C SQNZJJAZBFDUTD-UHFFFAOYSA-N 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 6
- 239000012736 aqueous medium Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- FNYLWPVRPXGIIP-UHFFFAOYSA-N Triamterene Chemical group NC1=NC2=NC(N)=NC(N)=C2N=C1C1=CC=CC=C1 FNYLWPVRPXGIIP-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000004811 liquid chromatography Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000000859 sublimation Methods 0.000 description 3
- 230000008022 sublimation Effects 0.000 description 3
- 229960001288 triamterene Drugs 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 150000008359 benzonitriles Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60054257A JPS61215352A (ja) | 1985-03-20 | 1985-03-20 | 無水ピロメリツト酸の捕集方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60054257A JPS61215352A (ja) | 1985-03-20 | 1985-03-20 | 無水ピロメリツト酸の捕集方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPS61215352A JPS61215352A (ja) | 1986-09-25 |
| JPH0442389B2 true JPH0442389B2 (enExample) | 1992-07-13 |
| JPH0560470B2 JPH0560470B2 (enExample) | 1993-09-02 |
Family
ID=12965501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60054257A Granted JPS61215352A (ja) | 1985-03-20 | 1985-03-20 | 無水ピロメリツト酸の捕集方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61215352A (enExample) |
-
1985
- 1985-03-20 JP JP60054257A patent/JPS61215352A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0560470B2 (enExample) | 1993-09-02 |
| JPS61215352A (ja) | 1986-09-25 |
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