GB1448325A - Process for the reduction of nitrogen oxides - Google Patents

Process for the reduction of nitrogen oxides

Info

Publication number
GB1448325A
GB1448325A GB4541274A GB4541274A GB1448325A GB 1448325 A GB1448325 A GB 1448325A GB 4541274 A GB4541274 A GB 4541274A GB 4541274 A GB4541274 A GB 4541274A GB 1448325 A GB1448325 A GB 1448325A
Authority
GB
United Kingdom
Prior art keywords
sulphate
sulphates
copper
catalyst
manganese
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
GB4541274A
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.)
Kurashiki Spinning Co Ltd
Original Assignee
Kurashiki Spinning Co Ltd
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 Kurashiki Spinning Co Ltd filed Critical Kurashiki Spinning Co Ltd
Publication of GB1448325A publication Critical patent/GB1448325A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst

Abstract

1448325 Exhaust gas catalyst KURASHIKI BOSEKI KK 21 Oct 1974 [21 Nov 1973] 45412/74 Heading B1E [Also in Division C1] A metallic sulphate catalyst comprises copper sulphate, manganese sulphate, nickel sulphate, iron sulphate, cobalt sulphate, zinc sulphate or aluminium sulphate preferably used in an amount of from 0.05 to 20 weight % based on the weight of the catalyst and if present of the carrier. The catalyst may be used alone or in mixtures and may be used in combination with a carrier e.g. Al 2 O 3 , MgO or SiO 2 . Examples of mixed sulphate catalysts are given i) copper and manganese sulphates (ii) copper and cobalt sulphates (iii) copper and zinc sulphates (iv) aluminium and ferrous sulphates (v) copper, manganese and nickel sulphates. In examples calcined alumina is impregnated with a solution of a sulphate, dried for 20 hours at 110‹C then calcined at 450‹C for 3 hours in a stream of air. The process may be used for purifying stock gases typically containing nitrogen oxides, sulphur dioxide, carbon dioxide, nitrogen, oxygen and water.
GB4541274A 1973-11-21 1974-10-21 Process for the reduction of nitrogen oxides Expired GB1448325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48130897A JPS5080960A (en) 1973-11-21 1973-11-21

Publications (1)

Publication Number Publication Date
GB1448325A true GB1448325A (en) 1976-09-02

Family

ID=15045259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4541274A Expired GB1448325A (en) 1973-11-21 1974-10-21 Process for the reduction of nitrogen oxides

Country Status (3)

Country Link
JP (1) JPS5080960A (en)
DE (1) DE2454515A1 (en)
GB (1) GB1448325A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950139A (en) * 1988-01-22 1990-08-21 Metallgesellschaft Aktiengesellschaft Process of catalytically reducing NO
CN101219390B (en) * 2007-12-17 2011-08-10 李永兆 Selective oxide catalyst of carbon monoxide in hydrogen-rich gas and method for producing the same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50157257A (en) * 1974-06-10 1975-12-19
FR2368987A1 (en) * 1976-11-01 1978-05-26 Mitsubishi Chem Ind CATALYTIC REDUCTION OF NITROGEN OXIDES
US4798817A (en) * 1986-06-13 1989-01-17 Johnson Matthey, Inc. Selective catalytic reduction catalyst consisting of iron sulfate, ceria and alumina
DE3801785A1 (en) * 1986-12-17 1989-08-03 Metallgesellschaft Ag Process for the catalytic reduction of NO
DE3642980A1 (en) * 1986-12-17 1988-06-23 Metallgesellschaft Ag Process for the catalytic reduction of NO
DE3701527A1 (en) * 1987-01-21 1988-08-04 Metallgesellschaft Ag METHOD FOR SIMULTANEOUS NICKELING AND DESULFURATION OF AN OXYGEN-EXHAUST GAS
DE4125004C2 (en) * 1991-07-27 1995-02-09 Metallgesellschaft Ag Process for denitrification of the waste gases from the production of cement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343916B2 (en) * 1973-05-21 1978-11-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950139A (en) * 1988-01-22 1990-08-21 Metallgesellschaft Aktiengesellschaft Process of catalytically reducing NO
CN101219390B (en) * 2007-12-17 2011-08-10 李永兆 Selective oxide catalyst of carbon monoxide in hydrogen-rich gas and method for producing the same

Also Published As

Publication number Publication date
JPS5080960A (en) 1975-07-01
DE2454515A1 (en) 1975-05-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee