JPS6428212A - Production of chlorine apatite - Google Patents
Production of chlorine apatiteInfo
- Publication number
- JPS6428212A JPS6428212A JP7468388A JP7468388A JPS6428212A JP S6428212 A JPS6428212 A JP S6428212A JP 7468388 A JP7468388 A JP 7468388A JP 7468388 A JP7468388 A JP 7468388A JP S6428212 A JPS6428212 A JP S6428212A
- Authority
- JP
- Japan
- Prior art keywords
- apatite
- hydroxide
- reaction
- phosphoric acid
- ammonium 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE:To obtain chlorine apatite of high purity, highly reactive with carbon dioxide, by reaction of apatite hydroxide with ammonium chloride in an alkaline aqueous medium. CONSTITUTION:The objective chlorine apatite can be obtained by reaction of apatite hydroxide with ammonium chloride in an alkaline aqueous solution. The apatite hydroxide can be prepared, as precipitate, by adding to lime milk (formed by suspending calcium hydroxide in water) followed by bringing the system to a pH of ca. 9.2. The addition of phosphoric acid is preferably such that the aqueous solution of higher concentration be used at the initial stage, while that of lower concentration at the final stage, thus making the pH adjustment of the reaction mixture easier. Therefore, as the apatite hydroxide, a reaction product from calcium hydroxide and phosphoric acid can be used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63074683A JPH07106888B2 (en) | 1987-04-03 | 1988-03-30 | Chlorapatite manufacturing method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8099387 | 1987-04-03 | ||
JP62-80993 | 1987-04-03 | ||
JP63074683A JPH07106888B2 (en) | 1987-04-03 | 1988-03-30 | Chlorapatite manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6428212A true JPS6428212A (en) | 1989-01-30 |
JPH07106888B2 JPH07106888B2 (en) | 1995-11-15 |
Family
ID=26415867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63074683A Expired - Fee Related JPH07106888B2 (en) | 1987-04-03 | 1988-03-30 | Chlorapatite manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07106888B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0396845A (en) * | 1989-09-08 | 1991-04-22 | Sekisui Plastics Co Ltd | Powder chlorine apatite and carbon dioxide gas detecting element |
JP2002080210A (en) * | 2000-09-05 | 2002-03-19 | Taihei Chemical Industrial Co Ltd | Hydroxyapatite for calcium enrichment and highly concentrated hydroxyapatite slurry using it |
CN113372132A (en) * | 2021-06-15 | 2021-09-10 | 昆明理工大学 | Chlorapatite porous material and preparation method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61146704A (en) * | 1984-12-18 | 1986-07-04 | Kanto Kagaku Kk | Production of calcium-phosphorus type apatite |
-
1988
- 1988-03-30 JP JP63074683A patent/JPH07106888B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61146704A (en) * | 1984-12-18 | 1986-07-04 | Kanto Kagaku Kk | Production of calcium-phosphorus type apatite |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0396845A (en) * | 1989-09-08 | 1991-04-22 | Sekisui Plastics Co Ltd | Powder chlorine apatite and carbon dioxide gas detecting element |
JP2002080210A (en) * | 2000-09-05 | 2002-03-19 | Taihei Chemical Industrial Co Ltd | Hydroxyapatite for calcium enrichment and highly concentrated hydroxyapatite slurry using it |
CN113372132A (en) * | 2021-06-15 | 2021-09-10 | 昆明理工大学 | Chlorapatite porous material and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH07106888B2 (en) | 1995-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |