RU2008138834A - METHOD FOR PRODUCING HYDROXYAPATITIS - Google Patents
METHOD FOR PRODUCING HYDROXYAPATITIS Download PDFInfo
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- RU2008138834A RU2008138834A RU2008138834/15A RU2008138834A RU2008138834A RU 2008138834 A RU2008138834 A RU 2008138834A RU 2008138834/15 A RU2008138834/15 A RU 2008138834/15A RU 2008138834 A RU2008138834 A RU 2008138834A RU 2008138834 A RU2008138834 A RU 2008138834A
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- RU
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- Prior art keywords
- solution
- heated
- hydrogen phosphate
- ammonium hydrogen
- producing
- Prior art date
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Abstract
Способ получения гидроксиапатита, включающий осаждение из водных растворов солей кальция и гидроортофосфата аммония, отличающийся тем, что к водному раствору нитрата кальция добавляют 0,05-0,2М раствор ЭДТА (этилендиаминтетераацетат натрия) при температуре 40-70°С, затем к этой смеси по каплям приливают раствор гидроортофосфата аммония при постоянном перемешивании, нагревают до 40-60°С в течение 10-20 мин, осадок старят 1 сутки, сушат при 100-150°С, нагревают при 250-700°С в течение часа. A method for producing hydroxyapatite, including precipitation from aqueous solutions of calcium salts and ammonium hydrogen phosphate, characterized in that a 0.05-0.2 M EDTA solution (sodium ethylene diamine tetetraacetate) is added to an aqueous solution of calcium nitrate at a temperature of 40-70 ° C, then to this mixture a solution of ammonium hydrogen phosphate is poured dropwise with constant stirring, heated to 40-60 ° C for 10-20 minutes, the precipitate is aged 1 day, dried at 100-150 ° C, heated at 250-700 ° C for an hour.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008138834/15A RU2391117C1 (en) | 2008-09-30 | 2008-09-30 | Method of obtaining hydroxyapatite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008138834/15A RU2391117C1 (en) | 2008-09-30 | 2008-09-30 | Method of obtaining hydroxyapatite |
Publications (2)
Publication Number | Publication Date |
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RU2008138834A true RU2008138834A (en) | 2010-04-10 |
RU2391117C1 RU2391117C1 (en) | 2010-06-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2008138834/15A RU2391117C1 (en) | 2008-09-30 | 2008-09-30 | Method of obtaining hydroxyapatite |
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RU (1) | RU2391117C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115197052A (en) * | 2022-07-29 | 2022-10-18 | 常州大学 | Method for synthesizing o-hydroxy phenetole by hydroxyapatite catalysis |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2507151C1 (en) * | 2012-10-19 | 2014-02-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский государственный университет" | Method of obtaining silicon-modified hydroxyapatite with application of shf-radiation |
RU2641919C1 (en) * | 2016-12-20 | 2018-01-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный университет" | Method for hydroxiapatite obtaining |
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2008
- 2008-09-30 RU RU2008138834/15A patent/RU2391117C1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115197052A (en) * | 2022-07-29 | 2022-10-18 | 常州大学 | Method for synthesizing o-hydroxy phenetole by hydroxyapatite catalysis |
CN115197052B (en) * | 2022-07-29 | 2023-11-03 | 常州大学 | Method for synthesizing o-hydroxyphenylethyl ether by catalyzing hydroxyapatite |
Also Published As
Publication number | Publication date |
---|---|
RU2391117C1 (en) | 2010-06-10 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20101001 |