GB1309744A - Decomposition of metal chlorides - Google Patents
Decomposition of metal chloridesInfo
- Publication number
- GB1309744A GB1309744A GB1309744DA GB1309744A GB 1309744 A GB1309744 A GB 1309744A GB 1309744D A GB1309744D A GB 1309744DA GB 1309744 A GB1309744 A GB 1309744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hcl
- solution
- metal
- give
- chloride
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
- C01F5/06—Magnesia by thermal decomposition of magnesium compounds
- C01F5/10—Magnesia by thermal decomposition of magnesium compounds by thermal decomposition of magnesium chloride with water vapour
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/34—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of sprayed or atomised solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1309744 Metal oxides from chloride hydrates WOODALL-DUCKHAM Ltd 30 June 1970 [31 March 1969] 16781/69 Heading C1A A metal oxide and HCl are produced by decomposing particles of a metal chloride hydrate, separating the oxide from the HCl-containing gases, absorbing the HCl in an HCl solution to give a superazeotropic solution, distilling this solution to recover dry gaseous HC1, and recycling the remaining solution to the absorption stage. The chloride hydrate may be obtained by spray-drying a chloride solution, such that a lower hydrate is formed. The absorption may be carried out at atmospheric pressure in a cooled absorber to which gases and acid are fed at 100‹ C., to give a solution at 30‹ C. containing 36% HCl. The gases may initially be quenched to 100‹ C. by scrubbing with HCl. A further absorption stage may be provided using cold 15% HCl which is recirculated through a heat exchanger with make-up water. The distillation may be effected at atmospheric pressure to give an azeotropic solution (21% HCl) which may be heat exchanged with the 36% soln. Acid may be bled off from both absorption circuits, mixed with some product MgO, and fed to the spray drier. The metal may be Mg, Fe<SP>2+</SP>, Fe<SP>3+</SP>, Al, Ni, Co or Mn.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1678169 | 1969-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1309744A true GB1309744A (en) | 1973-03-14 |
Family
ID=10083559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1309744D Expired GB1309744A (en) | 1969-03-31 | 1969-03-31 | Decomposition of metal chlorides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1309744A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379312A1 (en) * | 1977-02-03 | 1978-09-01 | Aluminum Co Of America | TREATMENT OF RESIDUAL GASES FROM THE PRODUCTION OF ALUMINUM CHLORIDE, FOR THEIR RELEASE INTO THE ATMOSPHERE |
| FR2420509A1 (en) * | 1978-03-20 | 1979-10-19 | Ruthner Industrieanlagen Ag | Ferric oxide and hydrochloric acid prodn. - by ferric chloride soln. pyrolysis using concurrent flow of soln. spray and combustion gas to give increased oxide yield (OE 15.4.79) |
| CN111453701A (en) * | 2020-05-09 | 2020-07-28 | 中国成达工程有限公司 | Recycling method and system of protective gas for drying and dehydration |
-
1969
- 1969-03-31 GB GB1309744D patent/GB1309744A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379312A1 (en) * | 1977-02-03 | 1978-09-01 | Aluminum Co Of America | TREATMENT OF RESIDUAL GASES FROM THE PRODUCTION OF ALUMINUM CHLORIDE, FOR THEIR RELEASE INTO THE ATMOSPHERE |
| FR2420509A1 (en) * | 1978-03-20 | 1979-10-19 | Ruthner Industrieanlagen Ag | Ferric oxide and hydrochloric acid prodn. - by ferric chloride soln. pyrolysis using concurrent flow of soln. spray and combustion gas to give increased oxide yield (OE 15.4.79) |
| CN111453701A (en) * | 2020-05-09 | 2020-07-28 | 中国成达工程有限公司 | Recycling method and system of protective gas for drying and dehydration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |