METHOD OF PREPARING SPHERICALLY GRANULATED ZIRCONIUM HYDROXIDE OR OXIDE-BASED MATERIALS Russian patent published in 2004 - IPC

Abstract RU 2235686 C1

FIELD: inorganic compounds technology.

SUBSTANCE: invention relates to sol-gel technology for preparation of spherically granulated ion-exchangers and sorbents based on zirconium hydroxide or oxide as well as catalysts and powders for plasma spraying, and manufacture of high-temperature zirconium dioxide-based ceramics. Method comprises following stages: dissolution of zirconium carbonate in aqueous hydrochloric acid to reach Cl/Zr atomic ratio 0.8-1.8 in solution, electrolysis of chloride solution at 40-100^оС to Cl/Zr atomic ratio 0.2-0.5, introduction of soluble group III metal compound into resulting sol, dispersing of the latter in a gelling medium, separation of gel-spheres, washing, drying, and heat treatment.

EFFECT: reduced power consumption and simplified process.

11 cl, 2 tbl, 8 ex

Similar patents RU2235686C1

Title	Year	Author	Number
METHOD OF PREPARING SPHERICALLY GRANULATED SORBENT BASED ON HYDRATED ZIRCONIUM DIOXIDE	2005	Sharygin Leonid Mikhajlovich Kaljagina Marija Leonidovna Borovkova Ol'Ga Leonidovna Borovkov Sergej Ivanovich	RU2292949C2
GRANULATED INORGANIC SORBENT AND METHOD FOR ITS PRODUCTION	1992	Sharygin L.M. Barybin V.I. Smyshljaeva O.Ju. Tret'Jakov S.Ja. Moiseev V.E. Galkin V.M. Shtin A.P. Zlokazova E.I. Borovkov S.I.	RU2032460C1
INORGANIC SPHEROGRANULATED POROUS SORBENT BASED ON ZIRCONIUM HYDRIDE AND METHODS OF ITS PRODUCTION	1994	Sharygin L.M. Galkin V.M. Moiseev V.E. Barybin V.I. Shtin A.P.	RU2064825C1
INORGANIC SPHERIC GRANULATED HYDRATED ION-EXCHANGE MATERIAL AND METHOD FOR ITS PRODUCTION	1992	Sharygin L.M. Galkin V.M. Moiseev V.E. Korenkova A.V. Tret'Jakov S.Ja. Barybin V.I. Borovkov S.I.	RU2034645C1
GRANULATED SORBENT ON BASE OF HYDRATED ZIRCONIUM DIOXIDE	2005	Sharygin Leonid Mikhajlovich Kaljagina Marija Leonidovna Borovkova Ol'Ga Leonidovna	RU2287363C1
CHROMATOGRAPHIC MATERIAL AND METHOD FOR ITS PRODUCTION	1992	Sharygin L.M. Galkin V.M. Moiseev V.E. Ponomarev V.G. Tret'Jakov S.Ja. Barybin V.I.	RU2032461C1
INORGANIC SPHERICALLY GRANULATED COMPOSITE ZIRCONIUM HYDROXIDE-BASED SORBENT AND METHOD OF PREPARATION THEREOF	1996	Sharygin L.M. Moiseev V.E. Muromskij A.Ju. Barybin V.I.	RU2113024C1
METHOD FOR PRODUCING A GRANULATED INORGANIC SORBENT	2020	Kuznetsov Denis Dmitrievich Fedorenkov Semen Vladimirovich Mikhajlov Evgenij Nikolaevich Volgutov Valerij Yurevich Brodskaya Valeriya Alekseevna	RU2756163C1
	0	Sharygin Leonid Mikhajlovich Barybin Vladimir Ivanovich Gonchar Valerij Fedotovich Smyshlyaeva Olga Yurevna Shtin Anatolij Pavlovich Tretyakov Sergej Yakovlevich Moiseev Valerij Evgenevich Perekhozheva Tatyana Nikolaevna Galkin Vladimir Mikhajlovich Korenkova Alma Veniaminovna Zlokazova Elena Ivanovna Vovk Sergej Miroslavovich Ponomarev Valerij Gennadevich	SU1776432A1
METHOD FOR PRODUCING ZIRCONIUM DIOXIDE POWDERS WITH A SPHEROIDAL PARTICLE SHAPE WITH A STABILIZING COMPONENT CONTENT OF 20 TO 60 WT. %	2021	Buinachev Sergei Vladimirovich Mashkovtsev Maksim Alekseevich Zhirenkina Nina Valerevna Baksheev Evgenii Olegovich	RU2769683C1

RU 2 235 686 C1

Authors

Sharygin L.M.

Kaljagina M.L.

Kaljagin F.L.

Dates

2004-09-10—Published

2003-01-04—Filed