RO92269B1 - Procedeu de separare a trietilenglicolului - Google Patents

Procedeu de separare a trietilenglicolului

Info

Publication number
RO92269B1
RO92269B1 RO119159A RO11915985A RO92269B1 RO 92269 B1 RO92269 B1 RO 92269B1 RO 119159 A RO119159 A RO 119159A RO 11915985 A RO11915985 A RO 11915985A RO 92269 B1 RO92269 B1 RO 92269B1
Authority
RO
Romania
Prior art keywords
tert
butyl
separating
triethylenglycol
hydroxyphenyl
Prior art date
Application number
RO119159A
Other languages
English (en)
Other versions
RO92269A2 (ro
Inventor
Constantin Andrei
DOINA DORINA PîRVUTOIU
Iuliu Vlad
Original Assignee
Constantin Andrei
DOINA DORINA PîRVUTOIU
Iuliu Vlad
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Constantin Andrei, DOINA DORINA PîRVUTOIU, Iuliu Vlad filed Critical Constantin Andrei
Priority to RO119159A priority Critical patent/RO92269B1/ro
Publication of RO92269A2 publication Critical patent/RO92269A2/ro
Publication of RO92269B1 publication Critical patent/RO92269B1/ro

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Inventia se refera la un procedeu de separare a trietilenglicolului dintr-un amestec de glicoli prin fractionare sub vid care consta în aceea ca, în scopul obtinerii unui produs de puritate ridicata, se lucreaza la temperatura de 160..190 degree C, în prezenta unui antioxidant 20..800 ppm ales dintre octadecil 3-(3,5-di-tert-butil-4-hidroxifenil)propionat)2,6-di tert-butil-p-crezol si tetracistrimetilen-3-(3'-5-di-tert-butil-4'-hidroxifenil) metanpropionat.
RO119159A 1985-06-17 1985-06-17 Procedeu de separare a trietilenglicolului RO92269B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO119159A RO92269B1 (ro) 1985-06-17 1985-06-17 Procedeu de separare a trietilenglicolului

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO119159A RO92269B1 (ro) 1985-06-17 1985-06-17 Procedeu de separare a trietilenglicolului

Publications (2)

Publication Number Publication Date
RO92269A2 RO92269A2 (ro) 1987-08-31
RO92269B1 true RO92269B1 (ro) 1987-09-01

Family

ID=20117415

Family Applications (1)

Application Number Title Priority Date Filing Date
RO119159A RO92269B1 (ro) 1985-06-17 1985-06-17 Procedeu de separare a trietilenglicolului

Country Status (1)

Country Link
RO (1) RO92269B1 (ro)

Also Published As

Publication number Publication date
RO92269A2 (ro) 1987-08-31

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