Flame synthesis of metal salt nanoparticles, in particular calcium and phosphate comprising nanoparticles
US8753601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP,Ca3(PO4)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.