Composition used to produce igneous rock crystal glass material, igneous rock crystal glass material and production method thereof

摘要

A method for producing igneous rock crystal glass material comprises the following process steps: crushing ore, pre-treating crushed ore, mixing supplementary material, melting mixed material and preparing the finished product. Said ore is the igneous rock. Pre-treating crushed ore involves water-washing or acid-washing plus water-washing, in which the acid used in acid-washing is hydrochloric acid, nitric acid or sulfuric acid with the mass concentration of 1-50%. Stirring and dipping in acid is performed for 0.5-24 hours. Said supplementary material is at least one of SiO, AlO, MgO, BO, ZrO, LaO and YO, the addition amount of which is 1-30% of the mass of crushed ore. Melting temperature is between the melting point of the ore plus 50℃ and the boiling point of the ore minus 50℃. Melting atmosphere is non-strong oxidizing atmosphere. A composition used to produce the igneous rock crystal glass material and an igneous rock crystal glass material produced by said method are provided. The method does not use the flux and strong oxidizing melting atmosphere, and the annealing crystallization process is omitted. The product obtained has high qualified rate, excellent performance, good appearance, good applicability and low cost.