石英砂简介：
石英砂是一种坚硬、耐磨、化学性能稳定的硅酸盐矿物，其主要矿物成分是SiO2 ，石英砂的颜色为乳白色、或无色半透明状，呈多棱型球状的白色结晶体，硬度7，性脆无解理，贝壳状断口，油脂光泽，密度为2.65，堆积密度（1-20目为1.6），20-200目为1.5，其化学、热学和机械性能具有明显的异向性，不溶于酸，微溶于KOH溶液，熔点1750℃。
石英砂特点：无杂质、机械强度高、化学性能稳定、截污能力大、使用周期长，经济效益佳。
石英砂指标：
名称 | 规格 （目） | 耐火度 大于（℃) | 均匀度 （%） | SiO2含量 不小于（%） | Fe2O3含量 不大于（%） | 含粉量 小于（%） |
精砂 | 4-6 | 1750 | 90 | 99.5 | 0.02 | 0.2 |
精砂 | 6-10 | 1750 | 90 | 99.5 | 0.02 | 0.2 |
精砂 | 10-20 | 1750 | 90 | 99.5 | 0.03 | 0.2 |
精砂 | 20-40 | 1750 | 90 | 98.9 | 0.03 | 0.2 |
精砂 | 40-70 | 1750 | 90 | 98.8 | 0.04 | 0.3 |
精砂 | 70-140 | 1750 | 90 | 98.9 | 0.04 | 0.3 |
精砂 | 100-200 | 1750 | 90 | 98.5 | 0.04 | 0.3 |
精砂 | 270 | 1750 | 90 | 98.9 | 0.04 | 0.3 |
精砂 | 325 | 1750 | 90 | 98.7 | 0.04 | 0.3 |
石英砂用途：适用于人工草坪砂，喷砂和单层、双层快速滤池和工业高纯度滤水的承托层。
石英砂是一种非金属矿物质，是一种坚硬、耐磨、化学性能稳定的硅酸盐矿物，其主要矿物成分是SiO2，石英砂的颜色为乳白色、或无色半透明状，硬度7，石英砂是重要的工业矿物原料，非化学危险品，广泛用于玻璃、铸造、陶瓷及耐火材料、冶炼硅铁、冶金熔剂、冶金、建筑、化工、塑料、橡胶、磨料等工业及耐火材料、化工、精密铸造及电子等行业。
石英砂分类：
石英有较高的耐火性能，工业上将石英砂常分为：普通石英砂，精制石英砂，高纯石英砂，熔融石英砂及硅微粉等。
普通石英砂，即SiO2≥90—99％ Fe2O3≤0.06—0.02％，耐火度1750℃，外观部分大颗粒，表面有黄皮包囊。粒度范围5—220目，可按用户要求粒度生产。主要用途：冶金，墨碳化硅，玻璃及玻璃制品，搪瓷，铸钢，水过滤，泡花碱，化工，喷吵等行业。
精制石英砂又称酸洗石英砂，SiO2≥99—99.5％ Fe2O3≤0.005％，采用优质天然石英砂，经过精心挑选，精细加工而成。粒度范围1—0.5mm、0.5—0.1mm、0.1—0.01mm、0.01—0.005mm，可按用户要求加工。用途：制造玻璃，耐火材料，冶炼硅铁，冶金熔剂，陶瓷，研磨材料，铸造造型石英砂等方面，在建筑中利用其有很强的抗酸性介质浸蚀能力，制取耐酸混凝土及耐酸砂浆。
常用规格：0.5-1.0mm 0.6-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm 16-32mm
Quartz sand introduction:
Quartz sand is a hard and wear resistant, chemical performance and stability of silicate minerals, its main mineral composition is SiO2, quartz sand color of ivory, or colorless translucent shape, a multi type ball white crystals, hardness and brittleness, sex without cleavage, conchoidal fracture, grease sheen, density of 2.65, bulk density (1 - and mesh is 1.6), twenty - 200 mesh is 1.5, the chemical, thermal and mechanical properties has obvious anisotropy, not soluble in acid, slightly soluble in KOH solution, melting point 1750 ℃.
Quartz sand features: without impurities, high mechanical strength, stable chemical performance, cutting carrying capacity big, use cycle is long, and the economic benefit is good.
Quartz sand index:
Name specification (mesh) refractory degrees than (℃) uniformity (%) SiO2 content not less than (%) Fe2O3 content is not more than (%) including powder amount less than (%)
Fine sand 4-6 1750 90 99.5 0.02 0.2
Fine sand 6-10 1750 99.5 0.02 0.2
Fine sand 10-1750 and 99.5 0.03 0.2
Fine sand and - 1750 90 98.9 0.03 0.2
Fine sand and - 70 1750 90 98.8 0.04 0.3
Fine sand 70-140 1750 90 98.9 0.04 0.3
Fine sand 100-200 1750 90 98.5 0.04 0.3
Fine sand 270 1750 90 98.9 0.04 0.3
Fine sand 325 1750 90 98.7 0.04 0.3
Quartz sand application: suitable for artificial lawn sand, sand and single, double rapid filter and industrial high purity filter water retainer layer.
Quartz sand is a kind of non-metallic minerals, is a hard and wear resistant, chemical performance and stability of silicate minerals, its main mineral composition is SiO2, quartz sand color of ivory, or colorless translucent shape, hardness 7, quartz sand is an important industrial mineral raw materials, the hazardous chemicals, widely used in glass, casting, ceramic and refractory materials, smelting silicon, metallurgical additive, metallurgy, construction, chemical, plastic, rubber, abrasive, and other industrial and refractory materials, chemical industry, precision casting and electronic industries.
Quartz sand classification:
Quartz have higher fireproof performance, industry of quartz sand are often divided into: ordinary quartz sand, refining quartz sand, high purity quartz sand, fused quartz sand and silicon micro powder, etc.
Ordinary quartz sand, namely SiO2 was 90-99% or less Fe2O3 0.06-0.02%, 1750 ℃, the appearance of refractoriness of large particles, the surface has yellow skin cyst. Particle size range 5-220 mesh, can according to user requirements size production. Main application: metallurgy, ink silicon carbide, glass and glass products, enamel, cast steel, water filtration, bubble flower alkali, chemical, spray noise, etc.
Refining quartz sand is also called pickling quartz sand, SiO2 was 99-99.5% 0.005% or less Fe2O3, USES the high quality natural quartz sand, carefully chosen, fine processing and into. Particle size range 1-0.5 mm, 0.5 0.1 mm, 0.1 0.01 mm, 0.01 0.005 mm, according to user requirements processing. Purpose: to make glass, refractory materials, smelting silicon, metallurgical fusing agent, ceramic, grinding materials, casting modelling quartz sand, etc., in the construction of the strong acid medium erosion ability, making acid concrete and acid slurry.
Commonly used specifications: 0.5-1.0 mm to 1.2 mm to 0.6-0.8-1.6 mm 1.0 2.0 mm to 2.0-4.0 mm 4.0 8.0 mm 8.0-16 mm 16-32 mm