CA2133694A1 - Process for Producing Magnesium Sulfite Hexahydrate in a Flue Gas Desulfurization System - Google Patents

Process for Producing Magnesium Sulfite Hexahydrate in a Flue Gas Desulfurization System

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Publication number
CA2133694A1
CA2133694A1 CA 2133694 CA2133694A CA2133694A1 CA 2133694 A1 CA2133694 A1 CA 2133694A1 CA 2133694 CA2133694 CA 2133694 CA 2133694 A CA2133694 A CA 2133694A CA 2133694 A1 CA2133694 A1 CA 2133694A1
Authority
CA
Canada
Prior art keywords
magnesium sulfite
flue gas
hexahydrate
gas desulfurization
desulfurization system
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
CA 2133694
Other languages
French (fr)
Other versions
CA2133694C (en
Inventor
Daniel W. Berisko
John W. College
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.)
Dravo Lime Co
Original Assignee
Dravo Lime 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 Dravo Lime Co filed Critical Dravo Lime Co
Publication of CA2133694A1 publication Critical patent/CA2133694A1/en
Application granted granted Critical
Publication of CA2133694C publication Critical patent/CA2133694C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A process for removing sulfur dioxide from a flue gas stream where the magnesium sulfite removed from the effluent of a wet scrubber is in the form of magnesium sulfite hexahydrate. The chemistry of the aqueous scrubbing medium is controlled with specified ranges of magnesium ion content, sulfite ion content and pH. A portion of the aqueous solution removed from the scrubber is cooled, and solids crystallized therefrom, in the form of magnesium sulfite hexahydrate.
CA 2133694 1993-10-25 1994-10-05 Process for producing magnesium sulfite hexahydrate in a flue gas desulfurization system Expired - Fee Related CA2133694C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14269393A 1993-10-25 1993-10-25
US08/142,693 1993-10-25

Publications (2)

Publication Number Publication Date
CA2133694A1 true CA2133694A1 (en) 1995-04-26
CA2133694C CA2133694C (en) 1998-04-28

Family

ID=22500900

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2133694 Expired - Fee Related CA2133694C (en) 1993-10-25 1994-10-05 Process for producing magnesium sulfite hexahydrate in a flue gas desulfurization system

Country Status (1)

Country Link
CA (1) CA2133694C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775515A1 (en) * 1995-10-20 1997-05-28 Dravo Lime Company Sulphur dioxide scrubbing
EP1044925A2 (en) * 1999-04-13 2000-10-18 Dravo Lime, Inc. Process and apparatus for the production of high-purity magnesium hydroxide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775515A1 (en) * 1995-10-20 1997-05-28 Dravo Lime Company Sulphur dioxide scrubbing
EP1044925A2 (en) * 1999-04-13 2000-10-18 Dravo Lime, Inc. Process and apparatus for the production of high-purity magnesium hydroxide
US6214313B1 (en) * 1999-04-13 2001-04-10 Dravo Lime, Inc. High-purity magnesium hydroxide and process for its production
EP1044925A3 (en) * 1999-04-13 2001-11-07 Dravo Lime, Inc. Process and apparatus for the production of high-purity magnesium hydroxide

Also Published As

Publication number Publication date
CA2133694C (en) 1998-04-28

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