RO98091B1 - Instalatie pentru purificarea dimetiltereftalatului (dmt) - Google Patents
Instalatie pentru purificarea dimetiltereftalatului (dmt)Info
- Publication number
- RO98091B1 RO98091B1 RO127383A RO12738387A RO98091B1 RO 98091 B1 RO98091 B1 RO 98091B1 RO 127383 A RO127383 A RO 127383A RO 12738387 A RO12738387 A RO 12738387A RO 98091 B1 RO98091 B1 RO 98091B1
- Authority
- RO
- Romania
- Prior art keywords
- crystallization
- takes place
- crystallizer
- dimethylterephthalate
- dmt
- Prior art date
Links
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 title abstract 5
- 238000009434 installation Methods 0.000 title abstract 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 238000002425 crystallisation Methods 0.000 abstract 3
- 230000008025 crystallization Effects 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia s erefera la o instalatie pentru purificarea dimetiltereftalatului prin recristalizare continua, în una sau doua trepte de cristalizare. Instalatia, conform inventiei, este folosita la realizarea procesului de cristalizare în solutie de metanol într-un cristalizator tip coloana, cu alimentare si evacuare continua, în care racirea solutiei are loc prin evaporarea unei parti din solvent, formarea germenilor de cristale si cresterea cristalelor desfasurându-se în mod continuu de-a lungul înaltimii cristalizatorului, circulatia fluidului având loc astfel, încât evacuarea filtratului continând impuritatile dizolvate se face continuu pe la partea superioara a aparatului, iar suspensia concentrata de cristale de DMT purificat având loc pela partea inferioara.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO127383A RO98091B1 (ro) | 1987-03-12 | 1987-03-12 | Instalatie pentru purificarea dimetiltereftalatului (dmt) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO127383A RO98091B1 (ro) | 1987-03-12 | 1987-03-12 | Instalatie pentru purificarea dimetiltereftalatului (dmt) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO98091B1 true RO98091B1 (ro) | 1989-10-30 |
Family
ID=40906208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO127383A RO98091B1 (ro) | 1987-03-12 | 1987-03-12 | Instalatie pentru purificarea dimetiltereftalatului (dmt) |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO98091B1 (ro) |
-
1987
- 1987-03-12 RO RO127383A patent/RO98091B1/ro unknown
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