DD96959B1 - Verfahren zur herstellung von terephthalsaeureestern - Google Patents
Verfahren zur herstellung von terephthalsaeureesternInfo
- Publication number
- DD96959B1 DD96959B1 DD15308271A DD15308271A DD96959B1 DD 96959 B1 DD96959 B1 DD 96959B1 DD 15308271 A DD15308271 A DD 15308271A DD 15308271 A DD15308271 A DD 15308271A DD 96959 B1 DD96959 B1 DD 96959B1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- reaction
- terephthalic acid
- water
- alkanediols
- column apparatus
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 150000003503 terephthalic acid derivatives Chemical class 0.000 title 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 44
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 16
- 230000002378 acidificating effect Effects 0.000 claims description 13
- 239000006227 byproduct Substances 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 9
- 238000005886 esterification reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 230000032050 esterification Effects 0.000 claims description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- -1 terephthalic acid ester Chemical class 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 150000003504 terephthalic acids Chemical class 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 3
- 230000008020 evaporation Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000007086 side reaction Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 5
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000006068 polycondensation reaction Methods 0.000 description 3
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 206010010774 Constipation Diseases 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- TXTQARDVRPFFHL-UHFFFAOYSA-N [Sb].[H][H] Chemical compound [Sb].[H][H] TXTQARDVRPFFHL-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 1
- 229960005147 calcium acetate Drugs 0.000 description 1
- 235000011092 calcium acetate Nutrition 0.000 description 1
- 239000001639 calcium acetate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000004862 dioxolanes Chemical class 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15308271A DD96959B1 (de) | 1971-02-12 | 1971-02-12 | Verfahren zur herstellung von terephthalsaeureestern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15308271A DD96959B1 (de) | 1971-02-12 | 1971-02-12 | Verfahren zur herstellung von terephthalsaeureestern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DD96959A1 DD96959A1 (cg-RX-API-DMAC10.html) | 1973-04-12 |
| DD96959B1 true DD96959B1 (de) | 1986-03-26 |
Family
ID=5483455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD15308271A DD96959B1 (de) | 1971-02-12 | 1971-02-12 | Verfahren zur herstellung von terephthalsaeureestern |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD96959B1 (cg-RX-API-DMAC10.html) |
-
1971
- 1971-02-12 DD DD15308271A patent/DD96959B1/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DD96959A1 (cg-RX-API-DMAC10.html) | 1973-04-12 |
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