RO98466B1 - Process for preparing aqueous layer from the hemiterpene synthesis - Google Patents

Process for preparing aqueous layer from the hemiterpene synthesis

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Publication number
RO98466B1
RO98466B1 RO129945A RO12994587A RO98466B1 RO 98466 B1 RO98466 B1 RO 98466B1 RO 129945 A RO129945 A RO 129945A RO 12994587 A RO12994587 A RO 12994587A RO 98466 B1 RO98466 B1 RO 98466B1
Authority
RO
Romania
Prior art keywords
aqueous layer
synthesis
column
water
hemiterpene
Prior art date
Application number
RO129945A
Other languages
Romanian (ro)
Inventor
Mircea Laba
Teodor Pacuraru
Gheorghe Anghel
Rodica Fratiloiu
Florin Nicolaescu
Constantin Palade
Florea Cursaru
Original Assignee
Institutul De Cercetari Inginerie Tehnologie Si Proiectari Pentru Rafinarii
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 Institutul De Cercetari Inginerie Tehnologie Si Proiectari Pentru Rafinarii filed Critical Institutul De Cercetari Inginerie Tehnologie Si Proiectari Pentru Rafinarii
Priority to RO129945A priority Critical patent/RO98466B1/en
Publication of RO98466B1 publication Critical patent/RO98466B1/en

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

Abstract

Inventia se refera la un procedeu pentru prelucrarea stratului apos de la sinteza izoprenului si consta în aceea ca se supune stratul apos unei extractii într-o coloana de extractie în contracurent cu izobutena, raportul gravimetric între apa si izobutena fiind de 0,1:1...1:1, temperatura de lucru între 10 si 50 degree C, iar presiunea între 10 si 30 bari, dupa care tratul apos este prelucrat pe doua coloane de fractionare, la baza primei coloane care lucreaza la o ratie de reflux între 0,1:1 si 2:1, de preferinta între 0,5:1 si 1:1, se îndeparteaza urmele de acizi, saruri minerale si produse organice grele, iar la vârful celei de-a doua coloane care lucreaza la o ratie de reflux între 1:1 si 30:1, de preferinta 5:1...15:1, se separa produsele organice usoare, împreuna cu formaldehida, iar la baza coloanei se obtine apa cu caracteristici de calitate corespunzatoare apei demineralizate.The invention relates to a process for treating the aqueous layer from the synthesis of isoprene and consists in subjecting the aqueous layer to an extraction in an isobutene countercurrent extraction column, the gravimetric ratio of water to isobutene being 0.1: 1. .1: 1, a working temperature of between 10 and 50 ° C and a pressure of between 10 and 30 bar, after which the aqueous solution is worked up on two columns of fractionation at the base of the first column operating at a reflux ratio of between 0, 1: 1 and 2: 1, preferably between 0.5: 1 and 1: 1, removes traces of acids, mineral salts and heavy organic products, and at the top of the second column operating at a reflux ratio between 1: 1 and 30: 1, preferably from 5: 1 to 15: 1, separates light organic products together with formaldehyde and at the base of the column water with quality characteristics corresponding to the demineralized water is obtained.

RO129945A 1987-10-03 1987-10-03 Process for preparing aqueous layer from the hemiterpene synthesis RO98466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO129945A RO98466B1 (en) 1987-10-03 1987-10-03 Process for preparing aqueous layer from the hemiterpene synthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO129945A RO98466B1 (en) 1987-10-03 1987-10-03 Process for preparing aqueous layer from the hemiterpene synthesis

Publications (1)

Publication Number Publication Date
RO98466B1 true RO98466B1 (en) 1990-02-28

Family

ID=40906566

Family Applications (1)

Application Number Title Priority Date Filing Date
RO129945A RO98466B1 (en) 1987-10-03 1987-10-03 Process for preparing aqueous layer from the hemiterpene synthesis

Country Status (1)

Country Link
RO (1) RO98466B1 (en)

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