JPS57162637A - Decomposing method for nox - Google Patents

Decomposing method for nox

Info

Publication number
JPS57162637A
JPS57162637A JP56048231A JP4823181A JPS57162637A JP S57162637 A JPS57162637 A JP S57162637A JP 56048231 A JP56048231 A JP 56048231A JP 4823181 A JP4823181 A JP 4823181A JP S57162637 A JPS57162637 A JP S57162637A
Authority
JP
Japan
Prior art keywords
nox
compd
phosphate
sox
tio
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.)
Pending
Application number
JP56048231A
Other languages
Japanese (ja)
Inventor
Kunichi Matsushita
Jutaro Yamaguchi
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 JP56048231A priority Critical patent/JPS57162637A/en
Publication of JPS57162637A publication Critical patent/JPS57162637A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce and decompose NOX efficiently while suppressing the oxidation of SOX by treating waste gases contg. NOX and SOX with NH3 in the presence of the catalysts prepd. by firing the moldings consisting of specific compsns. of TiO2, a V compd., and phosphate of alkaline earth metals, zinc, etc.
CONSTITUTION: A raw material of TiO2 (e.g.; titanium hydroxide), a V compd. (e.g.; V2O5) and phosphate of metals of ≥1 kinds of alkaline earth metals, zinc, Al, etc. are mixed. The mixing ratios are 100pts.wt. the TiO2, 0.1W3pts.wt. the V compd. (value in terms of V2O5), and 0.1W5pts.wt. the phosphate (value in terms of tertiary salt) and are 0.1W2.5pts.wt. the phosphate with respect to 1pt.wt. of the V compd. Next, water and molding assistants such as silica sol, glass powder, or the like are added according to need to this mixture, thence the mixture is molded and dried, after which the moldings are fired at 300W 700°C, whereby the catalysts are prepd. Next, waste gases contg. NOX and SOX and the NH3 of 0.6W2 times mole the NOX are flowed through this catalyst bed under 200W600°C temp. conditions, whereby the NOX is reduced and decomposed.
COPYRIGHT: (C)1982,JPO&Japio
JP56048231A 1981-03-31 1981-03-31 Decomposing method for nox Pending JPS57162637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048231A JPS57162637A (en) 1981-03-31 1981-03-31 Decomposing method for nox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048231A JPS57162637A (en) 1981-03-31 1981-03-31 Decomposing method for nox

Publications (1)

Publication Number Publication Date
JPS57162637A true JPS57162637A (en) 1982-10-06

Family

ID=12797659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048231A Pending JPS57162637A (en) 1981-03-31 1981-03-31 Decomposing method for nox

Country Status (1)

Country Link
JP (1) JPS57162637A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774219A (en) * 1986-08-11 1988-09-27 Shell Oil Company Bimetallic catalyst and process for its preparation
US4812296A (en) * 1985-09-06 1989-03-14 Siemens Aktiengesellschaft Process utilizing catalytic material for the reduction of nitrous oxides
JP2005342711A (en) * 2004-05-07 2005-12-15 Mitsubishi Chemical Engineering Corp Denitration method of diesel engine exhaust gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812296A (en) * 1985-09-06 1989-03-14 Siemens Aktiengesellschaft Process utilizing catalytic material for the reduction of nitrous oxides
US4774219A (en) * 1986-08-11 1988-09-27 Shell Oil Company Bimetallic catalyst and process for its preparation
JP2005342711A (en) * 2004-05-07 2005-12-15 Mitsubishi Chemical Engineering Corp Denitration method of diesel engine exhaust gas

Similar Documents

Publication Publication Date Title
US4186109A (en) Catalyst for selectively reducing nitrogen oxides from oxygen-containing exhaust gases
GB8906726D0 (en) Titania extrudates
US3855391A (en) Sludge stabilization with gypsum
CA2264181A1 (en) A method for the treatment, in particular stabilization, of materials containing environmentally noxious constituents, especially from the incineration of waste, as well as a plant for carrying out the said method
JPS57162637A (en) Decomposing method for nox
JPS57162634A (en) Decomposing method for nox
JPS57162636A (en) Decomposing method for nox
DE59204239D1 (en) Process for denitrification of the waste gases from the production of cement.
JPS57162635A (en) Decomposing method for nox
ATE53824T1 (en) PROCESS FOR MAKING CEMENT CLINKER.
JPS57119842A (en) Production of honeycomb type catalyst
JPS57205320A (en) Formation of needlelike zinc oxide particle
JPS56121637A (en) Alumina liquid composition for coating catalyst carrier
JPS56126447A (en) Catalytic body for purification of waste gas
SU1454809A1 (en) Charge for making ceramic wall articles
JPS6421904A (en) Case for baking ferrite
CN1046727A (en) The production method of flyash brick
RU1807024C (en) Binder
SU480672A1 (en) Raw mix for mullite-containing ceramic products and method of their manufacture
JPS57113842A (en) Production of catalyst body for purification of gas
JPS5692115A (en) Manufacture of calcium sulfoaluminate
JPH07204668A (en) Treatment of ammonia nitrogen-containing drained water
JPS57127425A (en) Catalytic reduction and decomposition of nitrogen oxide
SU1715738A1 (en) Method of processing slag melt
JPS57171445A (en) Preparation of oxidation catalyst