| 摘要 |
PURPOSE:To increase the dissolution speed and the cleaning speed of silica sand and to enable the increase in the production of glass and the reduction in the dissolution energy, by attaching a sulfate and sulfite to the surfaces of the particles of the silica sand. CONSTITUTION:A silicate and/or a sulfite is attached to the surfaces of silica sand particles. Any application may be utilized, for example, silica sand is blended with the sulfate and/or the sulfite in the presence of a proper amount of water, silica sand is heated with a mixture of the sulfate and/or the sulfite at >= the melting point of the sulfate or the sulfite, etc. Sulfates or sulfites of alkali metal or alkaline earth metal are commonly used as the sulfate and the sulfite to be used as a clarifier for glass.
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