KR950017883A - High Purity Purification of 1,1,1,2-Tetrafluoroethane - Google Patents

High Purity Purification of 1,1,1,2-Tetrafluoroethane Download PDF

Info

Publication number
KR950017883A
KR950017883A KR1019930026521A KR930026521A KR950017883A KR 950017883 A KR950017883 A KR 950017883A KR 1019930026521 A KR1019930026521 A KR 1019930026521A KR 930026521 A KR930026521 A KR 930026521A KR 950017883 A KR950017883 A KR 950017883A
Authority
KR
South Korea
Prior art keywords
purification
hfc
high purity
tetrafluoroethane
less
Prior art date
Application number
KR1019930026521A
Other languages
Korean (ko)
Other versions
KR960008642B1 (en
Inventor
권영수
안병성
김홍곤
이상득
정문조
Original Assignee
김은영
한국과학기술연구원
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 김은영, 한국과학기술연구원 filed Critical 김은영
Priority to KR93026521A priority Critical patent/KR960008642B1/en
Publication of KR950017883A publication Critical patent/KR950017883A/en
Application granted granted Critical
Publication of KR960008642B1 publication Critical patent/KR960008642B1/en

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
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine

Landscapes

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

Abstract

본 발명은 수분 및 불화수소(HF)를 함유하는, 특히 미량의 수분 및 HF를 함유하는 1,1,1,2-테트라플루오로에탄(HFC-l34a) 혼합물에서 순수한 HFC-134a를 고순도로 정제하는 공정에 관한 것이다.The present invention purifies pure HFC-134a with high purity in a mixture of 1,1,1,2-tetrafluoroethane (HFC-l34a) containing water and hydrogen fluoride (HF), especially trace amounts of water and HF. It is about the process to make.

Description

1, 1, 1, 2-테트라플루오로에탄의 고순도 정제 방법High Purity Purification Method of 1, 1, 1, 2-tetrafluoroethane

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (5)

1. 1, 1, 1, 2-테트라플루오로에탄(HFC-134a)를 고순도로 정제하기 위하여, HFC-134a 정제탑으로부터 탑정 제품을 분리하여 중화 및 건조하여 불화수소(HF)를 제거하고, 탑정 제품을 분리하여 건조시켜 수분을 제거하는 것으로 이루어지는 HFC-134a의 고순도 정제방법.1. In order to purify 1, 1, 1, 2-tetrafluoroethane (HFC-134a) with high purity, the top product was separated from the HFC-134a purification column, neutralized and dried to remove hydrogen fluoride (HF), A high purity purification method of HFC-134a comprising separating and drying a tower product to remove moisture. 제1항에 있어서, 상기 정제를 위한 HFC-134a가 HF 100ppm이하 및/또는 수분 100ppm이하를 함유하는 것을 특징인 정제방법.The method according to claim 1, wherein the HFC-134a for purification contains 100 ppm or less of HF and / or 100 ppm or less of water. 제2항에 있어서, 상기 정제를 위한 HFC-l34a가 저비점화합물을 함유하는 것이 특징인 정제방법.The purification method according to claim 2, wherein the HFC-l34a for purification contains a low boiling point compound. 제2항에 있어서,상기 정제탑이 1-10kg/cm"이하의 압력에서 운전되는 것이 특징인 정제방법.The method of claim 2, wherein the purification tower is operated at a pressure of 1-10 kg / cm or less. 제3항에 있어서, 상기 정제탑이 15kg/㎠이하의 압력에서 운전되는 것이 특징인 정제방법.The method of claim 3, wherein the purification tower is operated at a pressure of 15 kg / cm 2 or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR93026521A 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane KR960008642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Publications (2)

Publication Number Publication Date
KR950017883A true KR950017883A (en) 1995-07-20
KR960008642B1 KR960008642B1 (en) 1996-06-28

Family

ID=19369954

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Country Status (1)

Country Link
KR (1) KR960008642B1 (en)

Also Published As

Publication number Publication date
KR960008642B1 (en) 1996-06-28

Similar Documents

Publication Publication Date Title
KR830007109A (en) How to remove urea, ammonia and carbon dioxide from a dilute aqueous solution containing urea, ammonia and carbon dioxide
KR940701373A (en) How to remove hydrogen fluoride
KR950008349A (en) Concentrated purification method of aqueous hydrogen peroxide solution
CA2268414A1 (en) Method for upgrading used sulfuric acids
GB1490228A (en) Process for regenerating sulphuric acid
CA2342925A1 (en) Purification of 1,1,1,3,3-pentafluorobutane
CA2110869A1 (en) Process for separating hf from its mixtures with hydrochlorofluorocarbons 123 and/or 124
PL235019A1 (en)
BR8402801A (en) PROCESS OF PURIFICATION OF A WATER-ALCOHOL MIXTURE IN C1-C2 FROM AN INDUSTRIAL MANUFACTURE OF ALCOHOL IN C1-C2
KR950017883A (en) High Purity Purification of 1,1,1,2-Tetrafluoroethane
JP5118797B2 (en) Method and apparatus for purifying low grade acetonitrile and other components from hazardous waste
KR960706463A (en) Process and device for cleaning vinyl chloride
DK0651042T3 (en) Process for purifying compressed gases
RU96115265A (en) METHOD AND DEVICE FOR CLEANING VINYL CHLORIDE
KR930007875A (en) Purification of 1,1,1-trifluoro-2,2-dichloroethane from isomer 1,1,2-trifluoro-1,2-dichloroethane
KR950016568A (en) Method of Purifying Stevia Sweetener
KR980001992A (en) Method for Purifying Saturated Hydrofluorocarbons
KR970704654A (en) Purification of allyl chloride (PURIFICATION OF ALLYL CHLORIDE)
ZA864404B (en) Process of recovering ammonia from an aqueous effluent which contains nh3,co2 and h2s
EP0554328B1 (en) Method of recovering substantially pure co 2 from a fermentation gas
FR2730228B1 (en) PENTAFLUOROETHANE PURIFICATION PROCESS
KR20000035814A (en) Process for producing difluoromethane
EP0211659A3 (en) Gas drying process
GB1494938A (en) Purification of chlorohydrocarbons
GB2272696A (en) Purification of 1,1-dichloro-1-fluoroethane

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030407

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee