JPH0434556B2 - - Google Patents
Info
- Publication number
- JPH0434556B2 JPH0434556B2 JP59089516A JP8951684A JPH0434556B2 JP H0434556 B2 JPH0434556 B2 JP H0434556B2 JP 59089516 A JP59089516 A JP 59089516A JP 8951684 A JP8951684 A JP 8951684A JP H0434556 B2 JPH0434556 B2 JP H0434556B2
- Authority
- JP
- Japan
- Prior art keywords
- pyromellitic anhydride
- mixed gas
- aqueous medium
- water
- 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 74
- 239000012736 aqueous medium Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 20
- 239000013078 crystal Substances 0.000 claims description 14
- 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 claims description 14
- 238000005406 washing Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 56
- 238000001816 cooling Methods 0.000 description 6
- SQNZJJAZBFDUTD-UHFFFAOYSA-N durene Chemical compound CC1=CC(C)=C(C)C=C1C SQNZJJAZBFDUTD-UHFFFAOYSA-N 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
- 239000012159 carrier gas Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000052 comparative effect Effects 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
- 239000000203 mixture Substances 0.000 description 3
- 230000003647 oxidation Effects 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
- 238000000889 atomisation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 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
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012495 reaction gas Substances 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
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59089516A JPS6156183A (ja) | 1984-05-07 | 1984-05-07 | 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 |
|---|---|---|---|
| JP59089516A JPS6156183A (ja) | 1984-05-07 | 1984-05-07 | 無水ピロメリツト酸の捕集方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6156183A JPS6156183A (ja) | 1986-03-20 |
| JPH0434556B2 true JPH0434556B2 (fr) | 1992-06-08 |
Family
ID=13972956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59089516A Granted JPS6156183A (ja) | 1984-05-07 | 1984-05-07 | 無水ピロメリツト酸の捕集方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6156183A (fr) |
-
1984
- 1984-05-07 JP JP59089516A patent/JPS6156183A/ja active Granted
Non-Patent Citations (1)
| Title |
|---|
| LA CHIMICA L'INDUSTRIA=1974 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6156183A (ja) | 1986-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2136382C (fr) | Procede d'elimination du soufre elementaire dans un produit gazeux | |
| US3615199A (en) | Process and apparatus for purifying gas | |
| JPS5966305A (ja) | 向流式溶融物冷却精製法 | |
| JP3659507B2 (ja) | アクリル酸の精製方法 | |
| JPS588501A (ja) | ガス処理溶液からの生成物の除去法 | |
| JPH0434556B2 (fr) | ||
| JPH0442389B2 (fr) | ||
| US3362989A (en) | Method for fractional sublimation | |
| JPS61227585A (ja) | 無水ピロメリツト酸の捕集方法 | |
| JP2004137193A (ja) | ビスフェノールａの造粒方法 | |
| US4725291A (en) | Method of collecting pyromellitic anhydride | |
| US3607037A (en) | Separation of sulfur dioxide from gases | |
| JPH047335B2 (fr) | ||
| EP0183318A1 (fr) | Procédé et installation pour purifier l'acide benzoique | |
| US2448868A (en) | Method of recovering phthalic anhydride | |
| US3687624A (en) | Process for recovering sulfur dioxide from a gas containing same | |
| US3687623A (en) | Process for recovering sulfur dioxide from a gas containing same | |
| US3687625A (en) | Recovery of sulfur dioxide from waste gas | |
| US2071357A (en) | Recovery of phthalic anhydride or acid | |
| US4277257A (en) | Process for preventing scale deposition | |
| JPS5844666B2 (ja) | マレイン酸の連続式脱水方法及びその装置 | |
| JP2660007B2 (ja) | 昇華性有機化合物の捕集方法およびその装置 | |
| JPS60118609A (ja) | 硫黄化合物含有ガスのダスト除去精製法 | |
| JPH041172A (ja) | アルカンスルホン酸アルカリ塩の精製方法 | |
| JPH09157188A (ja) | フルオレンの製造方法 |