METHOD OF SYNTHESIS OF FINELY DISPERSED HYDROXYLAPATITE OF HIGH PURITY Russian patent published in 2000 - IPC

Abstract RU 2149827 C1

FIELD: inorganic chemistry. SUBSTANCE: method involves synthesis of finely dispersed hydroxylapatite by pouring 6-9% solution of phosphoric acid at the rate 70-120 ml/min to 20-55% suspension of calcium hydroxide treated preliminary by ultrasonic oscillation at frequency 9-15 KHz. Hydroxylapatite particles (size is 1-5 mcm) are formed in settler for 20-24 h. Hydroxylapatite concentration in ready suspension is 320-350 g/l. Invention can be used for production of medicinal materials stimulating recovery of osseous tissue, production of dental fillings, dental pastas, sorbents and others. EFFECT: increased yield of product. 1 tbl, 1 ex

Similar patents RU2149827C1

Title	Year	Author	Number
METHOD OF PREPARING NANODISPERSED HYDROXYAPATITE FOR MEDICINE	2009	Barinov Sergej Mironovich Fomin Aleksandr Sergeevich Fadeeva Inna Vilorovna Tjut'Kova Julija Borisovna	RU2402483C2
METHOD FOR PRODUCING NANOHYDROXYAPATITE	2015	Bulanov Evgenij Nikolaevich Knyazev Aleksandr Vladimirovich Korokin Vitalij Zhanovich Blokhina Alena Gennadevna	RU2614772C1
METHOD OF PRODUCING NANOSIZED HYDROXYAPATITE POWDER	2011	Grishchenko Dina Nikolaevna Medkov Mikhail Azar'Evich Steblevskaja Nadezhda Ivanovna	RU2457174C1
METHOD OF OBTAINING NANO-SIZED HYDROXYLAPATITE	2007	Ivanov Maksim Borisovich Volkovnjak Natal'Ja Nikolaevna Kolobov Jurij Romanovich Buzov Andrej Anatol'Evich Chuev Vladimir Petrovich	RU2342938C1
METHOD OF PRODUCING NANO-SIZED CALCIUM-DEFICIENT CARBONATE-CONTAINING HYDROXYAPATITE	2014	Trubitsyn Mikhail Aleksandrovich Le Van Tkhuan Buzov Andrej Anatolevich Doan Van Dat Chuev Vladimir Petrovich	RU2588525C1
METHOD OF PRODUCING GRANULAR NANOCRYSTALLINE HYDROXYLAPATITE	2014	Volkovnyak Natalya Nikolaevna Khramov Georgij Viktorovich Ivanov Maksim Borisovich Grebtsova Elena Aleksandrovna	RU2605296C2
METHOD OF PRODUCING SPECIAL-GRADE TITANIUM DIOXIDE AND SPECIAL PURITY WITH CONTROLLED SPECIFIC SURFACE AREA	2018	Lapshina Elena Nikolaevna Mazein Sergej Aleksandrovich Brazhnikova Galina Germanovna	RU2693177C1
METHOD OF OBTAINING COMPOSITION SORBENT	2018	Vezentsev Aleksandr Ivanovich Dang Min Tkhui Doan Van Dat Peristaya Lidiya Fedotovna	RU2675866C1
METHOD FOR PRODUCING HYDROXYAPATITE	1993	Komarov Vladimir Fedorovich Melikhov Igor' Vital'Evich Rudin Vsevolod Nikolaevich Orlov Andrej Jur'Evich Minaev Vladimir Vasil'Evich Zuev Vladislav Petrovich Bozhevol'Nov Viktor Evgen'Evich	RU2077475C1
METHOD OF PRODUCING GRANULATED HYDROXYAPATITE PARTICLES	2018	Rychkov Vladimir Nikolaevich Mashkovtsev Maksim Alekseevich Aleshin Danil Konstantinovich Zhirenkina Nina Valerevna Kosykh Anastasiya Sergeevna Obabkov Nikolaj Vasilevich	RU2717275C2

RU 2 149 827 C1

Authors

Beljakova E.G.

Dates

2000-05-27—Published

1999-01-28—Filed