Hunan Province The Pingjiang Forever In Silica Geological Features And The Development Of Economic Significance

Silica is important non-metal mineral deposit.Through putting theSiO₂ purigcationon,make it become super thin to more than 800-2500oder,even to the level of nanometer.Then use spheroidization oven,SiO₂has more and more usage in electricity,micro-electron,firer resistingmaterial,ceramics,glass fiber,communication optical fibre cable,opticalglass.,plastic rubber,super polishing fluid,nanometer acceleratingagent,organic silic chemical industry.The silica ore in Pingjiang Y0ngxiang of Hunan is a new discovery ofnon-metal ore dposit in recent years.The author detailedly discusses theore deposit feature of the stratum,structural mamga and systematiclyillumilates the feature of ore component,the feature of ore quality and oredeposit country rock alteration.Base on these,then the author discussesthe formation reason of the silic ore deposit and thinks that it is a mid-lowtemperature thermal crevasse filling ore deposit.The silic ore deep treatment has wide market prospect.The silic oredeep treatment can be used in micro-electron,fire resistingmaterial,investment moulding,plastic rubber,paint and so on.The highdensity package of the integrated chip have put a strict demand on plastictechnology and plastic material.For example,the content of CI^- and Na⁺must be less than 3×10^-6,have low water absorbing capacity andpermeability,good high-temperature degree,close the chip and lead framheat expansion coefficient,have super-adhesive force,micro-shrinkageforce and so on.The silic micro-power has above good quality.The author has put a preliminary study on the economic meaning ofdeveloping Yongxiang silic ore and used the calculation of the staticeconomic evaluating indicator.At last,the author conclude that there arehigh0-investment profit rate,short investment recovery period,goodeconomic benefit.If put it in deep treatment,the silic ore must have agood investment prospect.