Patents
The invention relates to a process for preparation of a fluffy variety of pyrogenic silica. The process has been developed for production of fluffy variety of pyrogenic silica at a relatively lower temperature (around 450°C), using a waste material generated by aluminium industries (the spent pot liners) and a commercial grade silicone-oil. The product silica has an average particle size of 4 micrometer and specific surface area of 1.1575 sq. meter/cc. The particle size indicates its potential in commercial use in making a number of industrial products. The process is simple and does not require any special instrument to make the micro-amorphous silica.