SU163174A1 - - Google Patents
Info
- Publication number
- SU163174A1 SU163174A1 SU760808A SU760808A SU163174A1 SU 163174 A1 SU163174 A1 SU 163174A1 SU 760808 A SU760808 A SU 760808A SU 760808 A SU760808 A SU 760808A SU 163174 A1 SU163174 A1 SU 163174A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid
- fumaric acid
- solution
- isomerization
- maleic acid
- Prior art date
Links
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 47
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 43
- 239000001530 fumaric acid Substances 0.000 description 23
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 19
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 19
- 239000011976 maleic acid Substances 0.000 description 19
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 16
- 238000006317 isomerization reaction Methods 0.000 description 14
- 239000012452 mother liquor Substances 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000746 purification Methods 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- QISOBCMNUJQOJU-UHFFFAOYSA-N 4-bromo-1h-pyrazole-5-carboxylic acid Chemical compound OC(=O)C=1NN=CC=1Br QISOBCMNUJQOJU-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- YNKMHABLMGIIFX-UHFFFAOYSA-N benzaldehyde;methane Chemical compound C.O=CC1=CC=CC=C1 YNKMHABLMGIIFX-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU163174A1 true SU163174A1 (cs) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0152534B1 (ko) | 테레프탈산 여과액에서 불순물을 제거하기 위한 추출방법 | |
| EP0066436B1 (en) | A method of recovering a catalytic metal | |
| US3216481A (en) | Recovery of phthalic and maleic acid from solutions | |
| CN1191224C (zh) | 从混合的二甲苯制备纯对苯二酸和间苯二酸的方法 | |
| US2959622A (en) | Purification of crude jj-p-bis- | |
| DK1377544T4 (en) | Purification of 2-Nitro-4-Methylsulfonylbenzoic acid | |
| JP2013508377A (ja) | ５−スルホイソフタル酸から、低硫酸塩の５−スルホイソフタル酸・モノ−リチウム塩を調製するための、酢酸／水混合溶媒の使用 | |
| SU163174A1 (cs) | ||
| RU2671210C2 (ru) | Получение ароматической дикарбоновой кислоты | |
| JPS6233223B2 (cs) | ||
| JP5760089B2 (ja) | 酢酸洗浄を用いた低硫酸エステル濃度の、５−スルホイソフタル酸モノリチウム塩の調製 | |
| RU2214391C2 (ru) | Способ получения очищенной терефталевой и изофталевой кислоты из смеси ксилолов | |
| US3819659A (en) | Trimellitic acid anhydride recovery from liquid phase oxidation of pseudocumene | |
| US2393352A (en) | Manufacture of fumaric acid | |
| US2816923A (en) | Conversion of maleic acid to fumaric acid | |
| US2816922A (en) | Production of fumaric acid | |
| US3004067A (en) | Separation of aromatic | |
| JP2000169428A (ja) | 高純度テレフタル酸の製造装置および方法 | |
| CS228927B2 (en) | Method of preparing fumaric acid | |
| US1858151A (en) | Process for concentrating volatile aliphatic acids | |
| JPH05220393A (ja) | 炭化水素酸化用硼酸の精製方法 | |
| SU335231A1 (ru) | Способ очистки ванилина | |
| US2285886A (en) | Crystallization of hydroxycarboxylic acids | |
| SU430550A1 (ru) | СПОСОБ ОЧИСТКИ е-КАПРОЛАКТАМА | |
| SU271509A1 (ru) | Э. Б. В. И. Федосова и Г. Г. Евсюхин |