Degussa AG.Degussa AG of Frankfurt am Main, Germany, has acquired the remaining shares of precipitated silica silica or silicon dioxide, chemical compound, SiO2. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white. and zeolite zeolite Any member of a family of hydrated aluminosilicate minerals that have a framework structure enclosing interconnected cavities occupied by large metal cations (positively charged ions)—generally sodium, potassium, magnesium, calcium, and barium—and water manufacturer Silquimica S.A. from the Spanish Spanish, river, c.150 mi (240 km) long, issuing from Spanish Lake, S Ont., Canada, NW of Sudbury, and flowing generally S through Biskotasi and Agnew lakes to Lake Huron opposite Manitoulin island. There are several hydroelectric stations on the river. company General Quimica S.A. Degussa and General Quimica previously owned 50% each. Silquimica boasts an annual production capacity of 30,000 metric tons of precipitated silica and 40,000 metric tons of zeolites. Expansion of production capacity in stages is planned for Degussa's United Silica Industrial Ltd. factory in Ta Yuan Yuan (yüän), river, 540 mi (869 km) long, rising in S Guizhou prov. and flowing generally NE to Donting lake, Hunan prov., SE China. Navigation above Changde is limited by rapids to small craft. , Taiwan. Degussa is also planning to expand production of matting agents in its Marquart site in Bonn-Beuel, Germany. |
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