Method of manufacturing spherical silica particles

Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By impinging or atomizing with gaseous jet or blast

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264 13, 264 56, 423335, 423338, 423339, B29B 910, C01B 3312, C01B 3318

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active

050283600

ABSTRACT:
A method of manufacturing spherical silica particles comprising the steps of processing in an acid-containing solution and then washing with water the coagulant derived from an aqueous alkali metal silicate solution extruded through pores in a water-miscible organic medium or acid solution, wet-grinding the amorphous silica thus obtained in a liquid dispersion medium to obtain a fine particle silica suspension with a weight average particle size of 10 .mu.m or less, spray-drying this fine particle silica suspension with hot air and sintering the spherical granulated silica thus obtained. According to the present invention, the high-purity spherical silica particles can be obtained with high solidity and adjusted surface smoothness without any complicated operation or waste water treatment for use as a sealant filler for highly-integrated IC electronic parts.

REFERENCES:
patent: 4678652 (1987-07-01), Tamenori et al.
patent: 4683128 (1987-07-01), Orii et al.
patent: 4767433 (1988-08-01), Iura et al.
patent: 4853198 (1989-08-01), Orii et al.
patent: 4857289 (1989-08-01), Nauroth et al.
patent: 4857290 (1989-08-01), Shimizu
patent: 4913966 (1990-04-01), Garvey et al.

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