Molecular sieve products are important raw materials for industries such as petrochemicals, metallurgy, refrigeration and new building materials. They are widely used in gas separation, natural gas processing, petroleum refining, petrochemicals, insulating glass and refrigeration equipment. With the rapid development of the national economy, the product quality requirements for molecular sieves have continuously increased, and the demand for varieties and quantities has also increased.
Shanghai Universal Co., Ltd. is a company specializing in the production and sale of various molecular sieve adsorbents. The first phase of the project was put into operation in 1990 and was later completed in 1996 and 2004 respectively. The company currently has the largest and most technologically advanced molecular sieve production facility and quality testing laboratory in Asia. In addition to meeting the needs of the domestic market, the company also exports large quantities to the United States and Southeast Asian countries and regions. UOP is a subsidiary of Honeywell Corporation in the United States. Its molecular sieve technology has always maintained an international leading position.
 Fumed Silica
Fumed silica is a nano-scale white powder produced by hydrolysis of silicon halide in hydrogen-oxygen flame at high temperature, commonly known as fumed silica. It is an amorphous silica product with primary particle size of 7-40 nm, aggregate particle size of 200-500 nm, specific surface area of 100-400 m2/g, high purity and SiO2 content of not less than 99.8%. The surface untreated fumed silica aggregates contain various silicon hydroxyl groups.
Fumed silica is with small particle size, large surface area and porous structure, those properties ensures good adsorption ability and great hygroscopicity. In food powder, fumed silica covers all around the powder, it can separate particles, so to decrease viscosity and to ensure excellent flowing property. And, numerous internal pores of fumed silica can adsorb the humidity around food product, it avoids agglomeration when stored.
Fumed silica has unique characteristics in many disciplines and fields and plays an irreplaceable role because of its superior stability, reinforcement, thickening and thixotropy. Fumed silica is widely used in silicone rubber, adhesives, coatings, printing ink, thermal insulation and other industries, which provides a new material foundation and technical guarantee for the development of related industrial fields.
Hydrophilic fumed silica,Silicon Dioxide Powder,Hydrophobic Fumed SiO2Â
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