PL91231B1 - - Google Patents
Download PDFInfo
- Publication number
- PL91231B1 PL91231B1 PL16743173A PL16743173A PL91231B1 PL 91231 B1 PL91231 B1 PL 91231B1 PL 16743173 A PL16743173 A PL 16743173A PL 16743173 A PL16743173 A PL 16743173A PL 91231 B1 PL91231 B1 PL 91231B1
- Authority
- PL
- Poland
- Prior art keywords
- dimethyl terephthalate
- esterification
- methanol
- residue
- temperature
- Prior art date
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 claims description 38
- 230000032050 esterification Effects 0.000 claims description 12
- 238000005886 esterification reaction Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000004821 distillation Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 14
- 239000000047 product Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- REIDAMBAPLIATC-UHFFFAOYSA-M 4-methoxycarbonylbenzoate Chemical compound COC(=O)C1=CC=C(C([O-])=O)C=C1 REIDAMBAPLIATC-UHFFFAOYSA-M 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- VNGOYPQMJFJDLV-UHFFFAOYSA-N dimethyl benzene-1,3-dicarboxylate Chemical compound COC(=O)C1=CC=CC(C(=O)OC)=C1 VNGOYPQMJFJDLV-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16743173A PL91231B1 (enrdf_load_stackoverflow) | 1973-12-17 | 1973-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL16743173A PL91231B1 (enrdf_load_stackoverflow) | 1973-12-17 | 1973-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL91231B1 true PL91231B1 (enrdf_load_stackoverflow) | 1977-02-28 |
Family
ID=19965298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL16743173A PL91231B1 (enrdf_load_stackoverflow) | 1973-12-17 | 1973-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL91231B1 (enrdf_load_stackoverflow) |
-
1973
- 1973-12-17 PL PL16743173A patent/PL91231B1/pl unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2814448C2 (enrdf_load_stackoverflow) | ||
| KR20080015758A (ko) | 고급 유리 지방산 공급원료로부터의 바이오디젤과글리세린의 제조 | |
| HUE031328T2 (en) | Process and systems for solvent cleaning | |
| Osipow et al. | Sugar esters | |
| DE69208208T2 (de) | Verfahren zur herstellung von gereinigtem naphthalendikarbonsäuredimethylester | |
| US4032563A (en) | Process for the recovery of high purity diesters of terephthalic or isophthalic acids | |
| US5756716A (en) | Sugar-ester manufacturing process | |
| US2952679A (en) | Cyanuricacro preparation | |
| PL91231B1 (enrdf_load_stackoverflow) | ||
| DE69321577T2 (de) | Verfahren zur herstellung von diestern von naphtalendicarbonsäuren | |
| US3624145A (en) | Purification of terephthalic acid by liquid-liquid extraction | |
| US3153054A (en) | Process for separating tocopherols and sterols from deodorizer sludge and the like | |
| US2698336A (en) | Purification of crude wax oxidates | |
| US4442303A (en) | Recovery of water miscible organic acids from aqueous solution as alkyl esters | |
| US2816923A (en) | Conversion of maleic acid to fumaric acid | |
| US1371342A (en) | Process for the removal of fatty acids, resins, bitter and mucilaginous substances from fats and oils | |
| US4316775A (en) | Treatment of waste stream from adipic acid production | |
| D'souza | The importance of glycerol in the fatty acid industry | |
| US2791615A (en) | Ether purification | |
| JPS6191144A (ja) | ネオペンチルグリコ−ルの製造法 | |
| PL100946B1 (pl) | Sposob odwadniania kwasu maleinowego do bezwodnika maleinowego | |
| US1858151A (en) | Process for concentrating volatile aliphatic acids | |
| US3172884A (en) | Purification of hecogenin | |
| SU1038335A1 (ru) | Способ получени сложных эфиров | |
| SU143791A1 (ru) | Способ получени оксикислот |