RO87987B1 - Process for purifying dimethylterephtalate by crystallization - Google Patents

Process for purifying dimethylterephtalate by crystallization

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Publication number
RO87987B1
RO87987B1 RO112525A RO11252583A RO87987B1 RO 87987 B1 RO87987 B1 RO 87987B1 RO 112525 A RO112525 A RO 112525A RO 11252583 A RO11252583 A RO 11252583A RO 87987 B1 RO87987 B1 RO 87987B1
Authority
RO
Romania
Prior art keywords
dimethylterephtalate
crystallization
purifying
dimethyl terephthalate
detention
Prior art date
Application number
RO112525A
Other languages
Romanian (ro)
Other versions
RO87987A2 (en
Inventor
Dorel Jinga
Mircea Stoianovici
Nicolae Gogoanta
Original Assignee
Combinatul Petrochimic
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 Combinatul Petrochimic filed Critical Combinatul Petrochimic
Priority to RO83112525A priority Critical patent/RO87987A2/en
Publication of RO87987B1 publication Critical patent/RO87987B1/en
Publication of RO87987A2 publication Critical patent/RO87987A2/en

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

Abstract

Inventia se refera la un procedeu pentru purificarea dimetiltereftalatului prin dizolvare în metanol si cristalizare prin detenta si racire, conform caruia în scopul introducerii unor germeni de cristalizare la 40...50 m3 produs dizolvat si încarcat în cristalizator se introduce în timpul detentei la o temperatura de 60...90 degree C, o cantitate de 5...30 m3 filtrat rezultat dupa o a doua recristalizare a dimetiltereftalatului.The invention relates to a process for the purification of dimethyl terephthalate by dissolving it in methanol and crystallisation by detent and cooling, according to which for the purpose of introducing crystallization germs at 40 ... 50 m 3 of the product dissolved and charged into the crystallizer it is introduced during the detention at a temperature of 60 ... 90 ° C, an amount of 5 ... 30 m3 filtered after a second recrystallization of dimethyl terephthalate.

RO83112525A 1983-11-10 1983-11-10 PROCESS FOR PURIFYING DIMETHYLTEREPHTHALATE BY CRYSTALLIZATION RO87987A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO83112525A RO87987A2 (en) 1983-11-10 1983-11-10 PROCESS FOR PURIFYING DIMETHYLTEREPHTHALATE BY CRYSTALLIZATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO83112525A RO87987A2 (en) 1983-11-10 1983-11-10 PROCESS FOR PURIFYING DIMETHYLTEREPHTHALATE BY CRYSTALLIZATION

Publications (2)

Publication Number Publication Date
RO87987B1 true RO87987B1 (en) 1985-10-31
RO87987A2 RO87987A2 (en) 1985-11-30

Family

ID=20113842

Family Applications (1)

Application Number Title Priority Date Filing Date
RO83112525A RO87987A2 (en) 1983-11-10 1983-11-10 PROCESS FOR PURIFYING DIMETHYLTEREPHTHALATE BY CRYSTALLIZATION

Country Status (1)

Country Link
RO (1) RO87987A2 (en)

Also Published As

Publication number Publication date
RO87987A2 (en) 1985-11-30

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