RO85728B1 - Procedeu si instalatie de purificare a dimetiltereftalatului - Google Patents
Procedeu si instalatie de purificare a dimetiltereftalatuluiInfo
- Publication number
- RO85728B1 RO85728B1 RO109493A RO10949382A RO85728B1 RO 85728 B1 RO85728 B1 RO 85728B1 RO 109493 A RO109493 A RO 109493A RO 10949382 A RO10949382 A RO 10949382A RO 85728 B1 RO85728 B1 RO 85728B1
- Authority
- RO
- Romania
- Prior art keywords
- dimethyltherephthalate
- purifying
- installation
- methanol
- vessel
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000009434 installation Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- 238000001816 cooling Methods 0.000 abstract 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru purificarea dimetiltereftalatului, prin cristalizare din metanol si 98....102 degree C si 2,4...2,7 at, conform caruia se efectueaza o racire si decomprimare treptata pîna la 65...67 degree C si presiune atmosferica, dupa care urmeaza o racire cu vid de 200 mmHg, pîna la temperatura de 35 degree C. Instalatia pentru aplicarea procedeului conform inventiei, consta dintr-un vas în legatura cu un ejector, prin intermediul unor circuite de reglare si al unui vas colector, cu un condensator pentru recuperarea metanolului antrenat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109493A RO85728B1 (ro) | 1982-12-25 | 1982-12-25 | Procedeu si instalatie de purificare a dimetiltereftalatului |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109493A RO85728B1 (ro) | 1982-12-25 | 1982-12-25 | Procedeu si instalatie de purificare a dimetiltereftalatului |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO85728A2 RO85728A2 (ro) | 1984-11-25 |
| RO85728B1 true RO85728B1 (ro) | 1984-11-30 |
Family
ID=20112432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109493A RO85728B1 (ro) | 1982-12-25 | 1982-12-25 | Procedeu si instalatie de purificare a dimetiltereftalatului |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO85728B1 (ro) |
-
1982
- 1982-12-25 RO RO109493A patent/RO85728B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO85728A2 (ro) | 1984-11-25 |
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