JPS56152433A - Treating method of waste gas in preparation of acetaldehyde - Google Patents

Treating method of waste gas in preparation of acetaldehyde

Info

Publication number
JPS56152433A
JPS56152433A JP5689680A JP5689680A JPS56152433A JP S56152433 A JPS56152433 A JP S56152433A JP 5689680 A JP5689680 A JP 5689680A JP 5689680 A JP5689680 A JP 5689680A JP S56152433 A JPS56152433 A JP S56152433A
Authority
JP
Japan
Prior art keywords
acetaldehyde
waste gas
preparation
purification
recover
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.)
Granted
Application number
JP5689680A
Other languages
Japanese (ja)
Other versions
JPS5835969B2 (en
Inventor
Susumu Kubota
Tetsuo Shirao
Tomoshi Matsumura
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP5689680A priority Critical patent/JPS5835969B2/en
Publication of JPS56152433A publication Critical patent/JPS56152433A/en
Publication of JPS5835969B2 publication Critical patent/JPS5835969B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/783—Separation; Purification; Stabilisation; Use of additives by gas-liquid treatment, e.g. by gas-liquid absorption
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Landscapes

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

Abstract

PURPOSE:To recover acetaldehyde efficiently, by washing a waste gas formed in the distillation for purification of crude hydrous acetaldehyde prepared through the oxidation of ethylene with water, and separating methyl and ethyl chlorides contained in the gas. CONSTITUTION:Ethylene is reacted with oxygen in the presence of palladium and a redox catalyst to prepare crude hydrous acetaldehyde which is distilled for purification. The resultant waste gas containing methyl and ethyle chlorodes and acetaldehyde is washed with water in a washing tower (B), and a gas containing methyl and ethyl chlorides is obtained as a top exhaust gas which is incinerated. Aqueous acetaldehyde as a bottom product is fed into a rough distillation tower (A) to recover the acetaldehyde.
JP5689680A 1980-04-28 1980-04-28 Process for treating waste gas from acetaldehyde production Expired JPS5835969B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5689680A JPS5835969B2 (en) 1980-04-28 1980-04-28 Process for treating waste gas from acetaldehyde production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5689680A JPS5835969B2 (en) 1980-04-28 1980-04-28 Process for treating waste gas from acetaldehyde production

Publications (2)

Publication Number Publication Date
JPS56152433A true JPS56152433A (en) 1981-11-26
JPS5835969B2 JPS5835969B2 (en) 1983-08-05

Family

ID=13040200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5689680A Expired JPS5835969B2 (en) 1980-04-28 1980-04-28 Process for treating waste gas from acetaldehyde production

Country Status (1)

Country Link
JP (1) JPS5835969B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0313910A2 (en) * 1987-10-28 1989-05-03 Hoechst Aktiengesellschaft Process for the separation of the organochlorine compounds from the residual gas of the ethylene oxidation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0313910A2 (en) * 1987-10-28 1989-05-03 Hoechst Aktiengesellschaft Process for the separation of the organochlorine compounds from the residual gas of the ethylene oxidation

Also Published As

Publication number Publication date
JPS5835969B2 (en) 1983-08-05

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