ES378366A1 - Procedure to decrease the content of 2-chlorobutadiene- (1,3), carbon tetracloride and benzene in 1,2-dichloroethane, which had been recovered in the incomplete thermal unplease to form vinyl chloride. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure to decrease the content of 2-chlorobutadiene- (1,3), carbon tetracloride and benzene in 1,2-dichloroethane, which had been recovered in the incomplete thermal unplease to form vinyl chloride. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES378366A1
ES378366A1 ES378366A ES378366A ES378366A1 ES 378366 A1 ES378366 A1 ES 378366A1 ES 378366 A ES378366 A ES 378366A ES 378366 A ES378366 A ES 378366A ES 378366 A1 ES378366 A1 ES 378366A1
Authority
ES
Spain
Prior art keywords
dichloroethane
column
recovered
boilers
vinyl chloride
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES378366A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knapsack AG
Original Assignee
Knapsack AG
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
Priority claimed from DE19691917933 external-priority patent/DE1917933C3/en
Application filed by Knapsack AG filed Critical Knapsack AG
Publication of ES378366A1 publication Critical patent/ES378366A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,2-Dichloroethane recovered from the incomplete thermal cracking of 1,2-dichloroethane to vinyl chloride and contaminated with low boilers boiling below 83.7 C. and high boilers boiling above 83.7 C. is purified by reaction with gaseous chlorine in the presence of ferric chloride at 30-85 C. to convert low boilers to high boilers, and distillation of 1,2-dichloroethane from the high boilers. The process may be effected by (a) chlorinating contaminated 1,2- dichloroethane simultaneously with the chlorination of ethylene to form 1,2-dichloroethane, and distilling off the 1,2-dichloroethane, or (b) distilling the contaminated 1,2-dichloroethane in a low boiler distillation column, continuously removing a 1,2-dichloroethane-low boiler mixture from the head of the column, chlorinating the mixture, recycling the reaction mixture to the low boiler distillation column, and either (1) removing a 1,2-dichloroethane high boiler mixture from the base of the column and passing it to a high boiler distillation column, or (11) continuously removing 1,2-dichloroethane at a position below the column head and removing high boilers from the column base. A single column may serve as both a low boiler distillation column and a high boiler distillation column.
ES378366A 1969-04-09 1970-04-08 Procedure to decrease the content of 2-chlorobutadiene- (1,3), carbon tetracloride and benzene in 1,2-dichloroethane, which had been recovered in the incomplete thermal unplease to form vinyl chloride. (Machine-translation by Google Translate, not legally binding) Expired ES378366A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691917933 DE1917933C3 (en) 1969-04-09 Process for reducing the content of 2-chlorobutadiene (1,3), carbon tetrachloride and benzene in 1,2-dichloroethane, which was recovered to vinyl chloride during incomplete thermal cleavage

Publications (1)

Publication Number Publication Date
ES378366A1 true ES378366A1 (en) 1972-06-16

Family

ID=5730635

Family Applications (1)

Application Number Title Priority Date Filing Date
ES378366A Expired ES378366A1 (en) 1969-04-09 1970-04-08 Procedure to decrease the content of 2-chlorobutadiene- (1,3), carbon tetracloride and benzene in 1,2-dichloroethane, which had been recovered in the incomplete thermal unplease to form vinyl chloride. (Machine-translation by Google Translate, not legally binding)

Country Status (15)

Country Link
JP (1) JPS543846B1 (en)
AT (1) AT294026B (en)
BE (1) BE748722A (en)
BR (1) BR7018143D0 (en)
CA (1) CA946416A (en)
CH (1) CH529703A (en)
CS (1) CS187307B2 (en)
DK (1) DK125917B (en)
ES (1) ES378366A1 (en)
FR (1) FR2038347B1 (en)
GB (1) GB1266676A (en)
HU (1) HU162991B (en)
NL (1) NL150416B (en)
RO (1) RO61949A (en)
SU (1) SU415863A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759409A (en) * 1969-11-26 1971-05-25 Knapsack Ag PROCESS FOR LOWERING THE 2-CHLOROBUTADIENE- (1,3) CONTENT OF 1,2-DICHLORETHANE RECOVERED IN THE INCOMPLETE THERMAL DISSOCIATION OF VINYL CHLORIDE
FR2211429B1 (en) * 1972-12-27 1976-08-27 Rhone Progil
DE2754891C3 (en) * 1977-12-09 1981-02-26 Wacker-Chemie Gmbh, 8000 Muenchen Process for the purification of unreacted 1,2-dichloroethane from vinyl chloride production
DE4012538A1 (en) * 1990-04-19 1991-10-24 Wacker Chemie Gmbh METHOD FOR PURIFYING UNreacted 1,2-DICHLORETHANE FROM A 1,2-DICHLORETHANE PYROLYSIS PROCESS
FR2746097B1 (en) * 1996-03-14 1998-04-24 METHOD FOR CONVERTING THE LOW BOILING POINT BY-PRODUCTS FORMED DURING THE THERMAL CRACKING OF 1,2-DICHLOROETHANE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466058A (en) * 1965-01-29 1967-01-13 Stauffer Chemical Co Purification of ethylene dichloride containing trichlorethylene

Also Published As

Publication number Publication date
DE1917933A1 (en) 1970-12-03
FR2038347A1 (en) 1971-01-08
DK125917B (en) 1973-05-21
NL150416B (en) 1976-08-16
CA946416A (en) 1974-04-30
CH529703A (en) 1972-10-31
RO61949A (en) 1977-08-15
FR2038347B1 (en) 1974-03-15
NL7004977A (en) 1970-10-13
BR7018143D0 (en) 1973-01-09
JPS543846B1 (en) 1979-02-27
AT294026B (en) 1971-11-10
SU415863A3 (en) 1974-02-15
BE748722A (en) 1970-10-09
HU162991B (en) 1973-05-28
GB1266676A (en) 1972-03-15
CS187307B2 (en) 1979-01-31

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