GB2019826A - Process of Removing Oxides of Sulfur from Gases; Sludge Resulting from Process: and Product Comprising Lime or Limestone - Google Patents

Process of Removing Oxides of Sulfur from Gases; Sludge Resulting from Process: and Product Comprising Lime or Limestone

Info

Publication number
GB2019826A
GB2019826A GB7914003A GB7914003A GB2019826A GB 2019826 A GB2019826 A GB 2019826A GB 7914003 A GB7914003 A GB 7914003A GB 7914003 A GB7914003 A GB 7914003A GB 2019826 A GB2019826 A GB 2019826A
Authority
GB
United Kingdom
Prior art keywords
lime
sludge
ions
sulfur
gases
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
GB7914003A
Other versions
GB2019826B (en
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.)
Martin Marietta Corp
Original Assignee
Martin Marietta 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 Martin Marietta Corp filed Critical Martin Marietta Corp
Publication of GB2019826A publication Critical patent/GB2019826A/en
Application granted granted Critical
Publication of GB2019826B publication Critical patent/GB2019826B/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
    • B01D53/14—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 by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Abstract

In the process of removing oxides of sulfur from gases, comprising the step of contacting, at 2 DEG -100 DEG C, components comprising water, calcium ions, and sulfite ions or bisulfite ions to form a sludge, the improvement comprising contacting said components in the presence of dissolved Graham's salt or a dissolved polymer of the formula MxPnO(3n+1) to form a sludge having improved properties, wherein M is a cation, n is a positive integer greater than 1, x is (n+2)/y, and y is the valence of M. The sulphur oxides may be scrubbed directly with aqueous lime or lime stone solution or with an alkaline solution containing sodium ions which solution is subsequently contacted with calcium ions. The resulting sludge and a new composition of matter, comprising lime or limestone mixed with Graham's salt or MxPnO(3n+1), which is useful in performing the process, are also disclosed.
GB7914003A 1978-04-28 1979-04-23 Process of removing oxides of sulphur from gases sludge resulting from process and product comprising lime or limestone Expired GB2019826B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90116478A 1978-04-28 1978-04-28

Publications (2)

Publication Number Publication Date
GB2019826A true GB2019826A (en) 1979-11-07
GB2019826B GB2019826B (en) 1982-06-23

Family

ID=25413686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7914003A Expired GB2019826B (en) 1978-04-28 1979-04-23 Process of removing oxides of sulphur from gases sludge resulting from process and product comprising lime or limestone

Country Status (3)

Country Link
JP (1) JPS5846337B2 (en)
DE (1) DE2916975C2 (en)
GB (1) GB2019826B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359648U (en) * 1986-10-03 1988-04-20
JPS63127642U (en) * 1987-02-12 1988-08-22
JPH021158U (en) * 1989-06-14 1990-01-08
US5246677A (en) * 1991-05-07 1993-09-21 Electric Power Research Institute Addition of organophosphonates for size control of wet calcium-based FGD byproduct solids under forced oxidation conditions
DE4444809C1 (en) * 1994-12-15 1995-11-02 Buck Chem Tech Werke Processing old pyrotechnic materials without pollution

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022991A (en) * 1973-07-04 1975-03-12
SE435456B (en) * 1976-01-07 1984-10-01 Calgon Corp COMPOSITION AND PROCEDURE TO CONTROL THE BUILDING OF THE FLAVOR IN GAS WASHER

Also Published As

Publication number Publication date
DE2916975A1 (en) 1979-10-31
JPS54151563A (en) 1979-11-28
JPS5846337B2 (en) 1983-10-15
GB2019826B (en) 1982-06-23
DE2916975C2 (en) 1982-12-23

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Legal Events

Date Code Title Description
PG Patent granted