IE34845B1 - Improvements in or relating to the treatment of so2-containing gases - Google Patents

Improvements in or relating to the treatment of so2-containing gases

Info

Publication number
IE34845B1
IE34845B1 IE1646/70A IE164670A IE34845B1 IE 34845 B1 IE34845 B1 IE 34845B1 IE 1646/70 A IE1646/70 A IE 1646/70A IE 164670 A IE164670 A IE 164670A IE 34845 B1 IE34845 B1 IE 34845B1
Authority
IE
Ireland
Prior art keywords
acid
gases
tetraacetic acid
concentration
alkali metal
Prior art date
Application number
IE1646/70A
Other versions
IE34845L (en
Inventor
Kozo Fukuba
Reiji Matsuda
Syozo Fujioka
Original Assignee
Sumitomo Chemical Co
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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of IE34845L publication Critical patent/IE34845L/en
Publication of IE34845B1 publication Critical patent/IE34845B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/60—Isolation of sulfur dioxide from gases

Abstract

1301621 Removing S02 from gases SUMI. TOMO CHEMICAL CO Ltd 6 Jan 1971 [22 Sept 1970] 616/71. Heading C1A SO 2 is removed from gases by contact with an aqueous alkali metal or ammonium sulphite solution containing a chelating agent selected from ethylene diamine tetraacetic acid, nitrilotriacetic acid, 1,2-diaminocyclohexane tetraacetic acid, N-oxyethylenediamine triacetic acid, ethylene glycol bis-(#-aminoethylether) tetraacetic acid, ethylenediamine tetrapropionic acid, their alkali metal and ammonium salts and mixtures thereof. The solution may contain a mixture of normal and bi-sulphites of Na, K, or NH 4 , in a concentration of 20-65% by wt. The concentration of the chelating agent may be 50-2000 p.p.m. The process may be carried out at room temperature to 110‹ C. [GB1301621A]
IE1646/70A 1970-09-22 1970-12-30 Improvements in or relating to the treatment of so2-containing gases IE34845B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45083172A JPS4940357B1 (en) 1970-09-22 1970-09-22

Publications (2)

Publication Number Publication Date
IE34845L IE34845L (en) 1972-03-22
IE34845B1 true IE34845B1 (en) 1975-09-03

Family

ID=13794843

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1646/70A IE34845B1 (en) 1970-09-22 1970-12-30 Improvements in or relating to the treatment of so2-containing gases

Country Status (15)

Country Link
JP (1) JPS4940357B1 (en)
AT (1) AT300848B (en)
BE (1) BE761355A (en)
BR (1) BR7100135D0 (en)
CA (1) CA969739A (en)
CH (1) CH547230A (en)
DE (1) DE2100268C3 (en)
ES (1) ES387077A1 (en)
FR (1) FR2105753A5 (en)
GB (1) GB1301621A (en)
IE (1) IE34845B1 (en)
NL (1) NL7100047A (en)
NO (1) NO130723C (en)
SE (1) SE373297B (en)
ZA (1) ZA708739B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789530A (en) * 1987-12-09 1988-12-06 Phillips Petroleum Company Absorption of hydrogen sulfide with an alkali metal ethylenediaminetetraacetate and/or alkali metal nitrilotriacetate
DE3925424A1 (en) * 1989-08-01 1991-02-07 Basf Ag METHOD FOR REDUCING THE OXIDATION SPEED OF SULPHATE SOLUTIONS

Also Published As

Publication number Publication date
GB1301621A (en) 1973-01-04
ZA708739B (en) 1971-10-27
FR2105753A5 (en) 1972-04-28
BE761355A (en) 1971-07-08
IE34845L (en) 1972-03-22
ES387077A1 (en) 1979-05-01
NO130723B (en) 1974-10-21
JPS4940357B1 (en) 1974-11-01
NL7100047A (en) 1972-03-24
BR7100135D0 (en) 1973-05-03
DE2100268B2 (en) 1974-02-28
NO130723C (en) 1975-01-29
CA969739A (en) 1975-06-24
DE2100268A1 (en) 1972-03-23
DE2100268C3 (en) 1974-11-14
AT300848B (en) 1972-08-10
CH547230A (en) 1974-03-29
SE373297B (en) 1975-02-03

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