KR830005093A - Wastewater treatment method for methacrylic acid production - Google Patents

Wastewater treatment method for methacrylic acid production Download PDF

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Publication number
KR830005093A
KR830005093A KR1019810000254A KR810000254A KR830005093A KR 830005093 A KR830005093 A KR 830005093A KR 1019810000254 A KR1019810000254 A KR 1019810000254A KR 810000254 A KR810000254 A KR 810000254A KR 830005093 A KR830005093 A KR 830005093A
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KR
South Korea
Prior art keywords
gas
methacrylic acid
condensable
methacroline
inert gas
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KR1019810000254A
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Korean (ko)
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KR840001550B1 (en
Inventor
마사오 사다
미찌오 가도오
마사미 아야노
다다시 아베
마사노리 모리와기
Original Assignee
니시기다 도모즈미
스미도모 가가구 고오교 가부시기가이샤
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Priority to KR1019810000254A priority Critical patent/KR840001550B1/en
Publication of KR830005093A publication Critical patent/KR830005093A/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/03—Monocarboxylic acids
    • C07C57/04—Acrylic acid; Methacrylic acid

Abstract

내용 없음No content

Description

메타크릴산 제조시의 폐수처리 방법Wastewater treatment method for methacrylic acid production

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 헨리 계수H(기압/몰%), 제2도는 본 발명의 폐수처리 공정 계통도.1 is Henry's coefficient H (atm / mol%), and FIG. 2 is a wastewater treatment process flow diagram of the present invention.

Claims (5)

(1) 희석을 위한 비활성 가스가 비용축가스 이거나 이것의 물과의 혼합물이고, (2) 궁극적으로 분리되는 수용액이 증발되며 또 방출된 증기가 분자 산소로 촉매 연소처리 되는 것을 특징으로 하는, (a) 응축액으로서의 메타크릴산, 아세트산 및 수증기를 함유하는 응축액으로서의 응축성 성분과 메타클로라인을 함유하는 비응축기상 혼합물로서의 비응축성 성분으로 분리하기 위한 기상반응이 이루어진 반응기로 부터의 기상 반응혼합물을 냉각하고, (b) 응축액으로부터의 오염 메타크롤라인을 제거하며, (c) 메타크릴산을 추출하기 위하여 생성된 응축액을 유기용매와 접촉시키고, 메타크릴산과 수용액을 함유하는 폐수로서의 유기용매액으로 분리하는 것을 수반하는 것으로 된 메타크롤 라인이나 반응상태와 분자 산소하에서 메타크롤라인을 생성하는 화합물을 희석하기 위하여 비활성 가스의 공존하에서의 산화촉매 존재하에서 기상 반응시켜서 얻은 메타크릴산 함유기상 반응혼합물로 부터 메타크릴산을 분리하는 방법.(1) the inert gas for dilution is a non-reduced gas or a mixture thereof with water, (2) the aqueous solution which is ultimately separated is evaporated and the vapor released is catalytically combusted with molecular oxygen, ( a) a gas phase reaction mixture from a reactor in which a gas phase reaction has been carried out for separation into a condensable component as a condensate containing methacrylic acid, acetic acid and water vapor as a condensate and a non-condensable component as a non-condensable phase mixture containing methachlorine. Cooling, (b) removing contaminating methacroline from the condensate, and (c) contacting the resulting condensate with an organic solvent to extract methacrylic acid, and using the organic solvent as wastewater containing methacrylic acid and an aqueous solution. Methacroline, which involves entraining or producing methacroline under reaction conditions and molecular oxygen Method by vapor phase oxidation reaction in the presence of a catalyst under the coexistence of an inert gas separating methacrylic acid from the methacrylic acid-containing gaseous reaction mixture obtained in order to dilute the compound. 비활성 가스인 비응축성 가스가 메타크롤라인과 그것으로 부터의 메타크릴산 분리에 의하여 기상 반응혼합물로 부터 얻어지는 배출가스인 청구범위 제1항에 의거한 방법.The method according to claim 1, wherein the non-condensable gas, which is an inert gas, is an offgas obtained from a gas phase reaction mixture by separation of methacroline and methacrylic acid therefrom. 비활성 가스인 비응축성 가스가 그중에 있는 유기성분이 분자산소와 같이 촉매연소되게 되어져 있게 된 후에 얻어지는 배출가스인 청구범위 제3항에 의거한 방법.The method according to claim 3, wherein the non-condensable gas, which is an inert gas, is an exhaust gas obtained after the organic component contained therein is subjected to catalytic combustion, such as molecular oxygen. 공급가스중의 비활성 가스인 수증기의 농도가 20몰%이하인 청구범위 제1항에 의거한 방법.The method according to claim 1, wherein the concentration of water vapor which is an inert gas in the feed gas is 20 mol% or less. 궁극적으로는 분리되는 수용액이 증발시켜 그 중량을 증발전의 중량을 기준으로 한 중량으로 30%로 하는 청구범위 제1항에 의거한 방법.The method according to claim 1, wherein the aqueous solution which is separated ultimately evaporates so that the weight is 30% by weight based on the weight before evaporation. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019810000254A 1981-01-28 1981-01-28 Waste water treatment in the production of methacrylic acid KR840001550B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019810000254A KR840001550B1 (en) 1981-01-28 1981-01-28 Waste water treatment in the production of methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019810000254A KR840001550B1 (en) 1981-01-28 1981-01-28 Waste water treatment in the production of methacrylic acid

Publications (2)

Publication Number Publication Date
KR830005093A true KR830005093A (en) 1983-07-23
KR840001550B1 KR840001550B1 (en) 1984-10-05

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KR840001550B1 (en) 1984-10-05

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