Its production started in the 1940s, and, currently, Precipitated Silica has the greatest commercial importance between the three types of amorphous silica. The invention relates to a precipitated silica production process that includes a precipitation reaction between a silicate and an acid, in which the acid. precipitated silica is useful to enhance bond strength and as a reinforcing and thickening agent. ![]() In July, Evonik announced plans to build a plant to produce precipitated silica outside São Paulo, Brazil. Download scientific diagram Diffractogram of silica precipitate from publication: Dissolution of quartz sand in sodium hydroxide solution for producing. ![]() It is a finely divided white powder, soluble in water, composed of aggregates with up to approximately 1 mm in diameter, generally made by precipitation of an alkaline metal silicate solution. Highly dispersible precipitated silica and method of preparation thereof Classifications C01B33/193 Preparation of finely divided silica neither in sol nor in gel form After-treatment thereof by. Precipitated silica is also used as an ingredient in the food and animal feed industries, as well as in paints and coatings. SiO2) is an amorphous form of silica (silicon dioxide), like silica gel and pyrogenic silica.
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