ATE137419T1 - Verfahren zur auswaschung von schwefeldioxid und herstellung von gereinigtem magnesiumhydroxid - Google Patents

Verfahren zur auswaschung von schwefeldioxid und herstellung von gereinigtem magnesiumhydroxid

Info

Publication number: ATE137419T1
Authority: AT; Austria
Prior art keywords: magnesium hydroxide; calcium sulfate; sulfur dioxide; producing purified; water
Prior art date: 1992-12-11

Application number

AT93109046T

Other languages

English (en)

Inventor

John W College

Lewis B Benson

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.)

1992-12-11

Filing date

1993-06-04

Publication date

1996-05-15

1993-06-04 Application filed by Dravo Lime Co filed Critical Dravo Lime Co

1996-05-15 Application granted granted Critical

1996-05-15 Publication of ATE137419T1 publication Critical patent/ATE137419T1/de

Links

RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title abstract 4
VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 title abstract 4
229910001862 magnesium hydroxide Inorganic materials 0.000 title abstract 4
239000000347 magnesium hydroxide Substances 0.000 title abstract 4
238000000034 method Methods 0.000 title abstract 2
238000002386 leaching Methods 0.000 title 1
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 8
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
239000007864 aqueous solution Substances 0.000 abstract 2
239000003546 flue gas Substances 0.000 abstract 2
239000012736 aqueous medium Substances 0.000 abstract 1
239000000356 contaminant Substances 0.000 abstract 1
238000005201 scrubbing Methods 0.000 abstract 1
238000005200 wet scrubbing Methods 0.000 abstract 1

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
- B01D53/46—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
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/14—Magnesium hydroxide
- C01F5/22—Magnesium hydroxide from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Environmental & Geological Engineering (AREA)
Biomedical Technology (AREA)
Health & Medical Sciences (AREA)
Analytical Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Chemical Kinetics & Catalysis (AREA)
Treating Waste Gases (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)

AT93109046T 1992-12-11 1993-06-04 Verfahren zur auswaschung von schwefeldioxid und herstellung von gereinigtem magnesiumhydroxid ATE137419T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/989,000 US5270026A (en)	1992-12-11	1992-12-11	Sulfur dioxide scrubbing process producing purified magnesium hydroxide

Publications (1)

Publication Number	Publication Date
ATE137419T1 true ATE137419T1 (de)	1996-05-15

Family

ID=25534665

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT93109046T ATE137419T1 (de)	1992-12-11	1993-06-04	Verfahren zur auswaschung von schwefeldioxid und herstellung von gereinigtem magnesiumhydroxid

Country Status (8)

Country	Link
US (1)	US5270026A (de)
EP (1)	EP0601271B1 (de)
JP (1)	JP3066403B2 (de)
AT (1)	ATE137419T1 (de)
CA (1)	CA2097670C (de)
DE (1)	DE69302460T2 (de)
PL (1)	PL171337B1 (de)
TR (1)	TR27336A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2147059C (en) *	1994-04-28	1999-08-10	John W. College	Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation
US5628811A (en) *	1994-08-23	1997-05-13	Dravo Lime Company	Method of ameliorating acid soil to enhance plant growth
US5614158A (en) *	1995-10-20	1997-03-25	Dravo Lime Company	Process for removing sulfur dioxide from gases and producing gypsum and purified magnesium hydroxide
JPH09122440A (ja) *	1995-10-20	1997-05-13	Dravo Lime Co	純粋な亜硫酸マグネシウム生成物の生成をともなう二酸化イオウスクラビング方法
AT403015B (de) *	1996-06-14	1997-10-27	Austrian Energy & Environment	Verfahren zur entschwefelung von rauchgasen
DE19847940C2 (de) *	1998-10-09	2001-04-12	Ver Energiewerke Ag	Verfahren zur Aufbereitung von magnesiumsulfathaltigen Wässern
US6214313B1 (en) *	1999-04-13	2001-04-10	Dravo Lime, Inc.	High-purity magnesium hydroxide and process for its production
US6428760B1 (en) *	1999-06-22	2002-08-06	Toyo Engineering Corporation	Method for desulfurizing exhaust gas
EP1110595A1 (de) *	1999-12-23	2001-06-27	Dravo Lime, Inc.	Reduktion von Kalzium und Chloride im Abgasentschwefelungsverfahren
US6572832B2 (en)	2001-03-27	2003-06-03	Carmeuse North America Services, Inc.	Method of removing sulfur dioxide from a gaseous stream in a wet scrubbing unit
US7179438B2 (en)	2005-04-20	2007-02-20	Allegheny Energy, Inc.	Methods and apparatus for recovering gypsum and magnesium hydroxide
US10011506B2 (en)	2012-08-13	2018-07-03	Enviro Water Minerals Company, Inc.	System for removing minerals from a brine using electrodialysis

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3919393A (en) *	1973-03-08	1975-11-11	Dravo Corp	Process for sulfur dioxide removal from combustion gases
US3919394A (en) *	1973-05-14	1975-11-11	Dravo Corp	Process for the removal of oxides of sulfur from a gaseous stream
US4294807A (en) *	1980-11-10	1981-10-13	Electric Power Research Institute, Inc.	System for removing solids from a used lime or limestone slurry scrubbing liquor in flue gas desulfurization
DE3401471A1 (de) *	1984-01-18	1985-07-25	Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn	Verfahren und vorrichtung zur rauchgasentschwefelung bei heizoelfeuerungen
DE3414822A1 (de) *	1984-04-19	1985-11-07	Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen	Verfahren zur weiterverarbeitung von entschwefelungschlamm einer rauchgasentschwefelungsanlage
US4804523A (en) *	1987-06-17	1989-02-14	Bechtel Group, Incorporated	Use of seawater in flue gas desulfurization
US5039499A (en) *	1988-04-29	1991-08-13	Dravo Lime Company	Process for desulfurization of sulfur dioxide-containing gas streams
US4976936A (en) *	1989-08-18	1990-12-11	Dravo Lime Company	Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges
US4996032A (en) *	1989-12-21	1991-02-26	Dravo Lime Company	Process for removing sulfur dioxide from flue gases
US5082639A (en) *	1990-11-06	1992-01-21	Dravo Lime Company	Sulfur dioxide removal from gases using a modified lime
US5084255A (en) *	1991-03-26	1992-01-28	Dravco Lime Company	Sulfur dioxide removal process with gypsum and magnesium hydroxide production

1992
- 1992-12-11 US US07/989,000 patent/US5270026A/en not_active Expired - Fee Related
1993
- 1993-06-03 CA CA002097670A patent/CA2097670C/en not_active Expired - Fee Related
- 1993-06-04 DE DE69302460T patent/DE69302460T2/de not_active Expired - Fee Related
- 1993-06-04 EP EP93109046A patent/EP0601271B1/de not_active Expired - Lifetime
- 1993-06-04 AT AT93109046T patent/ATE137419T1/de not_active IP Right Cessation
- 1993-07-27 TR TR00646/93A patent/TR27336A/xx unknown
- 1993-10-11 PL PL93300671A patent/PL171337B1/pl unknown
- 1993-11-19 JP JP5291014A patent/JP3066403B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US5270026A (en)	1993-12-14
PL171337B1 (pl)	1997-04-30
EP0601271B1 (de)	1996-05-01
JPH06205934A (ja)	1994-07-26
CA2097670C (en)	1999-07-06
DE69302460T2 (de)	1996-09-12
PL300671A1 (en)	1994-06-13
JP3066403B2 (ja)	2000-07-17
EP0601271A1 (de)	1994-06-15
CA2097670A1 (en)	1994-06-12
TR27336A (tr)	1995-01-13
DE69302460D1 (de)	1996-06-05

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Legal Events

Date	Code	Title	Description
1996-11-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties