PL399928A1 - Caprolactam purification method - Google Patents

Caprolactam purification method

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Publication number
PL399928A1
PL399928A1 PL399928A PL39992812A PL399928A1 PL 399928 A1 PL399928 A1 PL 399928A1 PL 399928 A PL399928 A PL 399928A PL 39992812 A PL39992812 A PL 39992812A PL 399928 A1 PL399928 A1 PL 399928A1
Authority
PL
Poland
Prior art keywords
plant
extraction
purification method
crystallization
caprolactam purification
Prior art date
Application number
PL399928A
Other languages
Polish (pl)
Other versions
PL220803B1 (en
Inventor
Leszek Maciszewski
Paweł Markowicz
Jan Wais
Stanisław Rygiel
Andrzej Lewandowski
Stanisław Brożek
Jacek Solakiewicz
Original Assignee
Zaklady Azotowe W Tarnowie-Moscicach Spólka Akcyjna
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 Zaklady Azotowe W Tarnowie-Moscicach Spólka Akcyjna filed Critical Zaklady Azotowe W Tarnowie-Moscicach Spólka Akcyjna
Priority to PL399928A priority Critical patent/PL220803B1/en
Publication of PL399928A1 publication Critical patent/PL399928A1/en
Publication of PL220803B1 publication Critical patent/PL220803B1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)

Abstract

Przedstawiony na rysunku sposób oczyszczania kaprolaktamu skladajacy sie z operacji ekstrakcji, krystalizacji oraz rektyfikacji, w którym zawroty lugów pokrystalicznych z instalacji krystalizacji oraz pogonów z instalacji rektyfikacji kierowane sa do instalacji ekstrakcji, charakteryzuje sie tym, ze rafinat z instalacji ekstrakcji jest zatezany, a nastepnie jest rozdzielany na warstwe górna stanowiaca mieszanine zwiazków organicznych oraz warstwe dolna stanowiaca wodny roztwór siarczanu amonu.The method of caprolactam purification presented in the figure, consisting of extraction, crystallization and rectification operations, in which the turn of crystalline lyes from the crystallization plant and chases from the rectification plant are directed to the extraction plant is characterized by that the raffinate from the extraction plant is fueled and then separated into the upper layer constituting a mixture of organic compounds and the lower layer constituting an aqueous solution of ammonium sulfate.

PL399928A 2012-07-12 2012-07-12 Method for purifying caprolactam PL220803B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL399928A PL220803B1 (en) 2012-07-12 2012-07-12 Method for purifying caprolactam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL399928A PL220803B1 (en) 2012-07-12 2012-07-12 Method for purifying caprolactam

Publications (2)

Publication Number Publication Date
PL399928A1 true PL399928A1 (en) 2014-01-20
PL220803B1 PL220803B1 (en) 2016-01-29

Family

ID=49920781

Family Applications (1)

Application Number Title Priority Date Filing Date
PL399928A PL220803B1 (en) 2012-07-12 2012-07-12 Method for purifying caprolactam

Country Status (1)

Country Link
PL (1) PL220803B1 (en)

Also Published As

Publication number Publication date
PL220803B1 (en) 2016-01-29

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