PL91231B1 - - Google Patents

Info

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

1973-12-17

Links

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• 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