JPS5757849A - Manufacture of metallic calcium - Google Patents
Manufacture of metallic calciumInfo
- Publication number
- JPS5757849A JPS5757849A JP13052280A JP13052280A JPS5757849A JP S5757849 A JPS5757849 A JP S5757849A JP 13052280 A JP13052280 A JP 13052280A JP 13052280 A JP13052280 A JP 13052280A JP S5757849 A JPS5757849 A JP S5757849A
- Authority
- JP
- Japan
- Prior art keywords
- cao
- metallic
- vacuum
- briquettes
- condenser
- 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
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To enhance the quality of metallic Ca by passing Ca vapor through a CaO packed bed to capture impurity Al when CaO is thermally reduced with Al or the llke in a vacuum and distilled.
CONSTITUTION: Briquettes 2 obtd. by molding CaO and powder of Al or the like are packed in a vacuum retort 1 in a heating furnace 3, and after evacuating the retort 1, the briquettes 2 are heated. Metallic Ca reduced by the vacuum heating is evaporated, and Ca vapor passes through a layer 11a of CaO granules in a heat insulated container 11 and condenses on a face of condenser 4. At this time, Al having a lower vapor pressure than metallic Ca is captured by the CaO layer 11b, and the purity of metallic Ca 5 condensed on the condenser 4 is enhanced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13052280A JPS5757849A (en) | 1980-09-19 | 1980-09-19 | Manufacture of metallic calcium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13052280A JPS5757849A (en) | 1980-09-19 | 1980-09-19 | Manufacture of metallic calcium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5757849A true JPS5757849A (en) | 1982-04-07 |
JPS6347780B2 JPS6347780B2 (en) | 1988-09-26 |
Family
ID=15036304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13052280A Granted JPS5757849A (en) | 1980-09-19 | 1980-09-19 | Manufacture of metallic calcium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5757849A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9499877B2 (en) | 2011-12-07 | 2016-11-22 | Jx Nippon Mining & Metals Corporation | Method for producing high-purity calcium |
-
1980
- 1980-09-19 JP JP13052280A patent/JPS5757849A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9499877B2 (en) | 2011-12-07 | 2016-11-22 | Jx Nippon Mining & Metals Corporation | Method for producing high-purity calcium |
US10138533B2 (en) | 2011-12-07 | 2018-11-27 | Jx Nippon Mining & Metals Corporation | Method for producing high-purity calcium |
Also Published As
Publication number | Publication date |
---|---|
JPS6347780B2 (en) | 1988-09-26 |
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