GEP19970696B - Method of isolation of е-caprolactam from lactam-raw - Google Patents

Method of isolation of е-caprolactam from lactam-raw

Info

Publication number
GEP19970696B
GEP19970696B GEAP19952998A GEAP1995002998A GEP19970696B GE P19970696 B GEP19970696 B GE P19970696B GE AP19952998 A GEAP19952998 A GE AP19952998A GE AP1995002998 A GEAP1995002998 A GE AP1995002998A GE P19970696 B GEP19970696 B GE P19970696B
Authority
GE
Georgia
Prior art keywords
caprolactam
lactam
raw
isolation
milli
Prior art date
Application number
GEAP19952998A
Inventor
Demna Karaulashvili
Tsitsino Kurstkhalia
Kiril Saldadze
Marina Nadirashvili
Rusudan Kakauridze
Zaira Simonija
Archil Shvangiradze
Original Assignee
Demna Karaulashvili
Tsitsino Kurstkhalia
Kiril Saldadze
Marina Nadirashvili
Rusudan Kakauridze
Zaira Simonija
Archil Shvangiradze
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 Demna Karaulashvili, Tsitsino Kurstkhalia, Kiril Saldadze, Marina Nadirashvili, Rusudan Kakauridze, Zaira Simonija, Archil Shvangiradze filed Critical Demna Karaulashvili
Publication of GEP19970696B publication Critical patent/GEP19970696B/en

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

Abstract

Invention falls into to isolation of Е- caprolactam from lactam-raw. Technical result of the invention is simplification of technological process of reception of caprolactam and improvement of production. Essence of the invention is that lactam-raw is diluted with water up to concentration 25-25, 1% with the subsequent electrodialysis of the obtained solution at current density of 0,015-0,017 milli A/cm in presence of alkali. The speed of the purified stream is 2 l/h. 1 figs.
GEAP19952998A 1979-06-01 1995-12-25 Method of isolation of е-caprolactam from lactam-raw GEP19970696B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792774426A SU941360A1 (en) 1979-06-01 1979-06-01 Process for isolating epsilon-caprolactam from raw lactam

Publications (1)

Publication Number Publication Date
GEP19970696B true GEP19970696B (en) 1997-01-06

Family

ID=20831251

Family Applications (1)

Application Number Title Priority Date Filing Date
GEAP19952998A GEP19970696B (en) 1979-06-01 1995-12-25 Method of isolation of е-caprolactam from lactam-raw

Country Status (2)

Country Link
GE (1) GEP19970696B (en)
SU (1) SU941360A1 (en)

Also Published As

Publication number Publication date
SU941360A1 (en) 1982-07-07

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