GB1299553A - Treatment of aliphatic chlorinated hydrocarbons with hydrazines or diamines - Google Patents

Treatment of aliphatic chlorinated hydrocarbons with hydrazines or diamines

Info

Publication number
GB1299553A
GB1299553A GB2310171A GB2310171A GB1299553A GB 1299553 A GB1299553 A GB 1299553A GB 2310171 A GB2310171 A GB 2310171A GB 2310171 A GB2310171 A GB 2310171A GB 1299553 A GB1299553 A GB 1299553A
Authority
GB
United Kingdom
Prior art keywords
hydrazine
hydrazines
treatment
diamines
diamine
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
GB2310171A
Inventor
Jan Anders Dahlberg
Virve Oivikki Christiansen
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.)
Uddeholms AB
Original Assignee
Uddeholms AB
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 Uddeholms AB filed Critical Uddeholms AB
Publication of GB1299553A publication Critical patent/GB1299553A/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

Landscapes

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

Abstract

1299553 Purification of halohydrocarbons UDDEHOLMS AB 19 April 1971 [16 March 1970] 23101/71 Heading C2C Oxidising impurities are removed from chlorohydrocarbons by treatment with hydrazine or a water-soluble saturated aliphatic hydrazine or diamine of formula C n H 2n+4 N 2 , in which n is 1 to 6. Hydrazines and diamines specified are hydrazine hydrate, dimethyl hydrazine, ethylene diamine and hexamethylene diamine. Chlorohydrocarbons specified are trichloroethylene, perchloroethylene, and an oxychlorination reaction product comprising mainly dichloroethylene, trichloroethylene and perchloroethylene. The chlorohydrocarbon may be subsequently treated by one or more of heating, washing with water, passage through activated carbon, distillation, drying, e.g. with calcium chloride, silica gel, alumina or potassium carbonate, and stabilisation, e.g. with thymol, triethylamine, di - isopropylamine; 3 - methyl 1-penty-3-nol, 2,6-di.t-butyl phenol or 4-methyl morpholine.
GB2310171A 1970-03-16 1971-04-19 Treatment of aliphatic chlorinated hydrocarbons with hydrazines or diamines Expired GB1299553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE347070A SE356034B (en) 1970-03-16 1970-03-16

Publications (1)

Publication Number Publication Date
GB1299553A true GB1299553A (en) 1972-12-13

Family

ID=20262193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2310171A Expired GB1299553A (en) 1970-03-16 1971-04-19 Treatment of aliphatic chlorinated hydrocarbons with hydrazines or diamines

Country Status (4)

Country Link
DE (1) DE2111735A1 (en)
FR (1) FR2083319B3 (en)
GB (1) GB1299553A (en)
SE (1) SE356034B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543992C3 (en) * 1975-10-02 1978-10-26 Dynamit Nobel Ag, 5210 Troisdorf Process for cleaning liquid chlorinated hydrocarbons

Also Published As

Publication number Publication date
FR2083319A3 (en) 1971-12-17
FR2083319B3 (en) 1973-12-28
SE356034B (en) 1973-05-14
DE2111735A1 (en) 1971-10-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees