| 摘要 |
<p>Silicates based on alkaline-earth elements, copper and optionally titanium, and provided in the form of agglomerates consisting either of monocrystalline grains or of aggregates made up of monocrystalline particles. The silicates are prepared by means of a method in which a silica sol or a silicate and optionally a titanium sol are mixed with salts of the other component elements of the silicate except for oxygen, the resulting mixture is dried, preferably by spray-drying, and the resulting material is calcined. Said silicates may be used as coloured pigments in plastics, paints, surface coatings, rubbers, ceramics, glazes, paper, inks, cosmetics, dyes and laminated coatings.</p> |
