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
GB3203265A
Inventor
Samuel Corbett Carson
John Michael Lawton
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Priority to GB3203265ApriorityCriticalpatent/GB1118797A/en
Publication of GB1118797ApublicationCriticalpatent/GB1118797A/en
C07C17/38—Separation; Purification; Stabilisation; Use of additives
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Bromine contaminant is removed from chlorinated hydrocarbons containing as an essential component at least one of CHCl3, CCl4, C2HCl3 and C2Cl4, by contacting the contaminated chlorinated hydrocarbon with a phenol or aniline. Other chlorinated hydrocarbons may also be present. After removal of the bromine by reaction with the phenol or aniline the chlorinated hydrocarbon may be recovered from excess of the phenol or aniline or brominated derivatives thereof by distillation. The contaminated chlorinated hydrocarbons treated may be obtained by chlorination of chlorinated hydrocarbons containing brominated hydrocarbons as impurities, the latter mixture being obtained by chlorination of hydrocarbons.
GB3203265A1965-07-271965-07-27Improvements in or relating to the purification of halogenated hydrocarbons
ExpiredGB1118797A
(en)
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)
Procedure for the separation of impurities from dilute gas containing acetylene or acetylene and ethylene. (Machine-translation by Google Translate, not legally binding)