RO84889B1 - Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftalici - Google Patents
Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftaliciInfo
- Publication number
- RO84889B1 RO84889B1 RO107947A RO10794782A RO84889B1 RO 84889 B1 RO84889 B1 RO 84889B1 RO 107947 A RO107947 A RO 107947A RO 10794782 A RO10794782 A RO 10794782A RO 84889 B1 RO84889 B1 RO 84889B1
- Authority
- RO
- Romania
- Prior art keywords
- dimethyl
- koh
- column
- esters
- mixture
- Prior art date
Links
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 title abstract 5
- 239000000203 mixture Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 abstract 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 150000003022 phthalic acids Chemical class 0.000 abstract 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 abstract 2
- XPDREOVZLWLHLD-UHFFFAOYSA-N COC(C=1C(C(=O)OC)=CC=CC1)=O.COC(C1=CC=C(C(=O)OC)C=C1)=O Chemical compound COC(C=1C(C(=O)OC)=CC=CC1)=O.COC(C1=CC=C(C(=O)OC)C=C1)=O XPDREOVZLWLHLD-UHFFFAOYSA-N 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 abstract 1
- 229960001826 dimethylphthalate Drugs 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a amestecurilor dimetilesteri ai acizilor ftalici din fractiunea dimetilereftalat-dimetilzoftalat de la faza de distilare, în scopuri multiple, din fabricile de dimetiltereftalatului, procedeul consta dintr-un amestec dimetilesteri ai acizilor ftalici si alte produse secindare, cu o aciditate globala de 5...40 mg KOH/g, conform caruia, în scopul obtinerii concomitente de amestecuri bi- si tricompetemte ale esterilor, fractiunea este supusa distilarii pe o coloana cu 20...30 talere teoretice, la o presiune de 20...200 mm Hg, în prezenta de 0,01...1% etilenglicol si/sau 0,001...5% trifenilfosfit, amestecul tricomponent de esteri dimetil-tereftalat, dimetilzoftalat si dimetilortoftalat, cu o cifara de ciaditate de 1,5 mg/KOH/g, se colecteaza la vîrful coloanei, dupa epouizarea componentilor acizi, din sarja, iar amestecul bicomponent de esteri dimetiltereftalat si dimetilizoftalat, cu o cifra de aciditate 0,01...0,05 mg KOH/G si culoare Hazen maximum 10, se colecteaza, în continuare, la vîrful coloanei, dupa epuizarea dimetilorftoftalatului din sarja.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107947A RO84889B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftalici |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107947A RO84889B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftalici |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO84889A2 RO84889A2 (ro) | 1984-08-17 |
| RO84889B1 true RO84889B1 (ro) | 1984-09-30 |
Family
ID=20111739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO107947A RO84889B1 (ro) | 1982-06-22 | 1982-06-22 | Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftalici |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO84889B1 (ro) |
-
1982
- 1982-06-22 RO RO107947A patent/RO84889B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO84889A2 (ro) | 1984-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2067036T3 (es) | Productos de alcoxilacion de derivados de acidos carboxilicos y/o acidos carboxilicos que contienen grupos oh. | |
| CA1100684A (en) | Copolyesters useful in blood separation assemblies | |
| ID17253A (id) | Metode pembuatan gliserida murni dan produknya | |
| ATE186728T1 (de) | Imidazochinoxalinone, ihre azaanaloge und verfahren zu ihrer herstellung | |
| BR8401364A (pt) | Composicao detergente liquida | |
| US3453183A (en) | Method of purifying ethanolamines | |
| ES8609232A1 (es) | Procedimiento para la preparacion de un analogo a la prosta-glandina | |
| KR101543810B1 (ko) | 다이-ｎ-부틸 테레프탈레이트로의 테레프탈산의 전환 | |
| ZA793646B (en) | Process for the production of terephthalic acid from dimethyl terephthalate as an intermediate product | |
| RO84889B1 (ro) | Procedeu de obtinere a amestecurilor de dimetilesteri ai acizilor ftalici | |
| DE3787947D1 (de) | Verfahren zur Herstellung von makrozyklischen Estern bei der Entpolymerisierung von Polyestern. | |
| NO931975D0 (no) | Fremgangsmaate for aa skille jordoljeemulsjoner av vann-i-olje-typen | |
| JP2871841B2 (ja) | 混合物からγ―ブチロラクトンを分離する方法 | |
| US3248404A (en) | Novel epoxidation process | |
| DE69009669D1 (de) | Verfahren zur Herstellung von Katalysatoren zur Herstellung der Methacrylsäure. | |
| ES2054480T3 (es) | Nuevos sustratos de enzimas, analogos de acidos grasos. | |
| ATE223370T1 (de) | Verfahren zur herstellung von alkoxylierten dimerfettsäuren | |
| EP0281826A3 (de) | Verfahren zur Herstellung von (R)-4-Amino-3-hydroxybutansäure (GABOB) | |
| ATE81844T1 (de) | Verfahren. | |
| ATA980574A (de) | Verfahren zur herstellung von neuen triazolothiazolyl- (thiono) -phosphor(phosphon) -saureestern | |
| Baraniak et al. | Electrophilic catalysis of N--> 0 phosphyl migration | |
| JPS55159158A (en) | Novel reagent for separation of lipoprotein | |
| SU642298A1 (ru) | Способ получени смеси диметиловых эфиров изо-,орто- и терефталевой кислот | |
| RO92779B1 (ro) | Procedeu pentru prepararea unor esteri bis-piperidinici | |
| SU566828A1 (ru) | Способ очистки сложных эфиров |