GB1294460A - Air pollution control system with chemical recovery - Google Patents
Air pollution control system with chemical recoveryInfo
- Publication number
- GB1294460A GB1294460A GB6312769A GB6312769A GB1294460A GB 1294460 A GB1294460 A GB 1294460A GB 6312769 A GB6312769 A GB 6312769A GB 6312769 A GB6312769 A GB 6312769A GB 1294460 A GB1294460 A GB 1294460A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mgso
- calcium salt
- control system
- salt
- air pollution
- 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
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
- B01D53/46—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
-
- 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
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- 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)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Treating Waste Gases (AREA)
- Removal Of Specific Substances (AREA)
Abstract
1294460 Mg(OH), recovery COMBUSTION ENG Inc 29 Dec 1969 [31 Dec 1968] 63127/69 Heading C1A Mg(OH) 2 is recovered from an MgSO 4 containing sludge produced (see Specification 1,178,109) by reaction of combustion gases containing SO 2 with MgO, followed by scrubbing by introducing a soluble calcium salt to precipitate CaSO 4 , separating at least part of the magnesium salt solution produced and reacting it with Ca(OH) 2 to precipitate Mg(OH) 2 and form a solution of soluble calcium salt which may be used in the first stage of the process. The preferred calcium salt is CaCl 2 . Any MgSO 3 in the initial sludge may be oxidized to MgSO 4 before carrying out the extraction. The resulting Mg(OH) 2 may be calcined to MgO. Addition of the Ca salt and/or the oxidizing agent may take place in the scrubber. Reference has been directed by the Comptroller to Specification 1,178,109.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78828368A | 1968-12-31 | 1968-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1294460A true GB1294460A (en) | 1972-10-25 |
Family
ID=25144011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6312769A Expired GB1294460A (en) | 1968-12-31 | 1969-12-29 | Air pollution control system with chemical recovery |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE743869A (en) |
CH (1) | CH527615A (en) |
ES (1) | ES375075A1 (en) |
FR (1) | FR2027441A1 (en) |
GB (1) | GB1294460A (en) |
NL (1) | NL6919657A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101172627B (en) * | 2007-10-11 | 2011-02-02 | 河北科技大学 | Method of producing magnesium hydroxide |
CN109368897A (en) * | 2018-10-31 | 2019-02-22 | 华北电力大学(保定) | A kind of milk of lime process recycles the system and application method of calcium ions and magnesium ions in desulfurization wastewater |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2323508A1 (en) * | 1973-05-10 | 1974-11-28 | Heinz Hoelter | PROCESS FOR SCRUBBISHING SO2, HC1, FLUORINE, DUST AND SIMILAR SMOKE GAS COMPANIES |
AT388882B (en) * | 1987-07-29 | 1989-09-11 | Andritz Ag Maschf | METHOD FOR THE PURIFICATION OF EXHAUST GASES FROM COMBUSTION PLANTS CONTAINING SALTIC ACID AND SULFUR DIOXIDE, IN PARTICULAR MUSEUM COMBUSTION PLANTS |
CN115504491A (en) * | 2021-06-23 | 2022-12-23 | 河南省德耀节能科技股份有限公司 | Method and system for recovering magnesium compound from calcium carbide furnace purification ash incineration material |
-
1969
- 1969-12-19 CH CH1895469A patent/CH527615A/en not_active IP Right Cessation
- 1969-12-24 FR FR6944933A patent/FR2027441A1/fr not_active Withdrawn
- 1969-12-29 GB GB6312769A patent/GB1294460A/en not_active Expired
- 1969-12-30 BE BE743869D patent/BE743869A/xx unknown
- 1969-12-30 ES ES375075A patent/ES375075A1/en not_active Expired
- 1969-12-31 NL NL6919657A patent/NL6919657A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101172627B (en) * | 2007-10-11 | 2011-02-02 | 河北科技大学 | Method of producing magnesium hydroxide |
CN109368897A (en) * | 2018-10-31 | 2019-02-22 | 华北电力大学(保定) | A kind of milk of lime process recycles the system and application method of calcium ions and magnesium ions in desulfurization wastewater |
Also Published As
Publication number | Publication date |
---|---|
CH527615A (en) | 1972-09-15 |
ES375075A1 (en) | 1972-04-01 |
BE743869A (en) | 1970-05-28 |
NL6919657A (en) | 1970-07-02 |
DE1951554A1 (en) | 1971-03-04 |
FR2027441A1 (en) | 1970-09-25 |
DE1951554B2 (en) | 1972-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |