GB1241575A - Process for converting gypsum to calcium sulphide and apparatus therefor - Google Patents
Process for converting gypsum to calcium sulphide and apparatus thereforInfo
- Publication number
- GB1241575A GB1241575A GB4002068A GB4002068A GB1241575A GB 1241575 A GB1241575 A GB 1241575A GB 4002068 A GB4002068 A GB 4002068A GB 4002068 A GB4002068 A GB 4002068A GB 1241575 A GB1241575 A GB 1241575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphide
- calcium
- calcium sulphide
- apparatus therefor
- aug
- 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
-
- 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
- C01B17/42—Sulfides or polysulfides of magnesium, calcium, strontium, or barium
- C01B17/44—Sulfides or polysulfides of magnesium, calcium, strontium, or barium by reduction of sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
1,241,575. Calcium sulphide; hydrogen sulphide. ELCOR CHEMICAL CORP. 21 Aug., 1968 [23 Aug., 1967], No. 40020/68. Heading C1A. [Also in Divisions B and F4] Calcium sulphide which has been prepared by reducing calcium sulphate with gases at 1500‹ F. to 1800‹ F. is cooled to below 700‹ F. by contact with water under pressure, e.g. 10 to 100 p.s.i.g., the water being at such a pressure that steam formation is substantially prevented. The reduction preferably takes place at 10 to 100 p.s.i.g. Hydrogen sulphide may be formed by passing carbon dioxide through the calcium sulphide slurry. Apparatus in which the process is carried out is also described (see Division B1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66265067A | 1967-08-23 | 1967-08-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1241575A true GB1241575A (en) | 1971-08-04 |
Family
ID=24658587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4002068A Expired GB1241575A (en) | 1967-08-23 | 1968-08-21 | Process for converting gypsum to calcium sulphide and apparatus therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1241575A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2163739A (en) * | 1984-08-31 | 1986-03-05 | Hitachi Shipbuilding Eng Co | Exhaust gas desulphurisation and treatment of CaSOx solids produced therein |
-
1968
- 1968-08-21 GB GB4002068A patent/GB1241575A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2163739A (en) * | 1984-08-31 | 1986-03-05 | Hitachi Shipbuilding Eng Co | Exhaust gas desulphurisation and treatment of CaSOx solids produced therein |
FR2569679A1 (en) * | 1984-08-31 | 1986-03-07 | Hitachi Shipbuilding Eng Co | TREATMENT OF SOLIDS CONTAINING SULFURIC OXYACID CALCIUM SALT, AND PROCESS FOR PURIFYING EXHAUST GAS USING THE TREATMENT |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES453391A1 (en) | Removal of CO2 and/or H2S and/or COS from gases containing these constituents | |
GB1309872A (en) | Process for producing methanol | |
ES403514A1 (en) | Production of sized particles of uranium oxides and uranium oxyfluorides | |
ES393221A1 (en) | Process for the selective removal of hydrogen from gases containing hydrogen sulphide and carbon dioxide | |
GB1448558A (en) | Gas pruification liquors | |
GB1241575A (en) | Process for converting gypsum to calcium sulphide and apparatus therefor | |
ES436410A1 (en) | Processing natural gas and products derived therefrom | |
GB1033061A (en) | Process and apparatus for the generation of gases | |
GB1316849A (en) | Sulphur-burning process | |
ES393112A1 (en) | D apparent density of between 400 and 600 grams liter production of polyphosphate hydrated to an extent of more than 75% an | |
GB1015107A (en) | Improvements in or relating to cyclohexylamine sulphamic acid salts | |
GB1182255A (en) | Improvements in or relating to Hydrogen Sulphide Removal from Gases. | |
DE3160356D1 (en) | Process for producing deuterium-enriched water during the production of hydrogen | |
ES413045A1 (en) | Carbonation of ammoniacal sodium chloride brine | |
GB1322292A (en) | Process for converting hydrated magnesium sulphite to magnesium oxide | |
GB1198189A (en) | Process for the Thermal Treatment of Hydrocarbons | |
GB1480228A (en) | Process for the removal of sulphur compounds from claus off-gases | |
GB1356527A (en) | Methods of washing away gypseous scale from scrubbers for smoke desulphurization by the wet lime-gypsum process | |
JPS5327799A (en) | Treating system for gas waste in light water type reactor | |
ES440733A1 (en) | Process for purifying waste water containing ammonium sulfate | |
JPS52152873A (en) | Treatment of gas containing hydrogen sulfide | |
GB1470299A (en) | Process for removing so2 from gases | |
BRINN | A REVIEW OF THE LITERATURE CONCERNING THE STEEL INDUSTRY AND POLLUTION. PART 1. THE BACKGROUND TO POLLUTION | |
JPS5239577A (en) | Equipment for treatment by adsorption with powdery active carbon | |
FR2044765A1 (en) | Increased deuterium concentration of water |