Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1986-12-10
1988-02-02
Dixon, Jr., William R.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
501 95, 501103, C03C 306
Patent
active
047228334
ABSTRACT:
Coagulated particles of ultrafine monoclinic zicronia crystals oriented in fiber bundle-like form, wherein primary particles of ultrafine monoclinic zirconia are oriented to join and extended in the direction of C-axis into fine fibrous form of less than 50 .ANG. diameter and they are further gathered into a bundle-like form having from 300 to 2000 .ANG. of width and from 2000 to 10000 .ANG. of length. Such particles are prepared by hydrothermal processing which is applied at a temperature from 120.degree. to 300.degree. C. to an acidic aqueous solution containing a water-soluble zirconium compound in an amount of from 0.1 to 2.0 mol/l as Zr, SO.sub.4.sup.2- in an amount of from 0.2 to 2.0 mol/l and a water-soluble compound selected from the group consisting of water-soluble magnesium compounds, water-soluble ammonium compounds and mixtures thereof in an amount of from 0.05 to 1.5 mol/l as Mg.sup.2+ or NH.sub.4.
REFERENCES:
patent: 2984576 (1961-05-01), Alexander et al.
patent: 2984628 (1961-05-01), Alexander et al.
patent: 3110681 (1963-11-01), Meadows et al.
patent: 3259585 (1966-07-01), Fitch et al.
patent: 3282857 (1966-11-01), Fitch et al.
patent: 3340006 (1967-09-01), Mochel
patent: 3442817 (1969-05-01), Luebke
patent: 3645910 (1972-02-01), Woodhead
patent: 4283377 (1981-08-01), Fenner
patent: 4543341 (1985-09-01), Barringer et al.
patent: 4619817 (1986-10-01), Stambaugh et al.
patent: 4664894 (1987-05-01), Suzuki et al.
Brunsman David M.
Dixon Jr. William R.
Nissan Chemical Industries Ltd.
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