METHOD OF CALCIUM HYDROXYLAPATITE PRODUCING Russian patent published in 1997 - IPC

Abstract RU 2100274 C1

FIELD: chemical industry, inorganic chemistry. SUBSTANCE: method involves preparing suspension of calcium hydroxide with phosphoric acid which is added by drops to pH = 9-11. After filtration and drying product is subjected for double processing in the presence of hydroxyl-containing component taken at amount 10-12 wt.-% of product weight at 600-700 C for 20-30 min and at 1000-1400 C for 1-4 h. Calcium, strontium, zirconium, aluminium hydroxides were used as hydroxyl-containing component. The end product is used as bioactive ceramics in stomatology and orthopedics. EFFECT: improved quality of product. 2 cl, 7 dwg, 1 tbl

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RU 2 100 274 C1

Authors

Zapleshko N.N.

Golota A.F.

Grechishnikov V.I.

Golota A.A.

Zapleshko R.I.

Dates

1997-12-27—Published

1992-11-24—Filed