Abstract:
PROBLEM TO BE SOLVED: To increase a yield of silica-containing particles and increase purity of the silica-containing particles in a silica-containing particle production method.SOLUTION: A silica-containing particle production method includes steps of: producing an emulsion comprising a dispersion phase containing a silica-containing precursor and a continuous phase; forming silica-containing particles by solidifying emulsion droplets containing a silica-containing precursor; agitating a liquid containing the silica-containing particles using an agitating member at a peripheral velocity of 7.5 m/s or more; and recovering the silica-containing particles.
Abstract:
PROBLEM TO BE SOLVED: To further form a layer of microporous structure comprising fine silica particles or the like in the large pores of a large pore diameter silica gel without clogging the large pores, and thereby, to develop functions as an adsorption layer or a separation layer for a substance in a process liquid or as a carrier layer, reaction points or the like for a photocatalyst or the like by the microporous structure so as to further enhance the functions of the large pore silica gel. SOLUTION: The silica gel having a double pore structure having a microporous structure within the silica gel formed by depositing fine particles to 5 to 100 nm thickness is obtained by carrying out steps of: preparing large pore diameter silica gel original having a pore diameter of 50 to 3,500 nm; treating the large pore diameter silica gel with slurry or a sol liquid containing fine particles having a particle diameter of 1 to 50 nm so as to inject at least the slurry or the sol liquid containing the fine particles into the large pores of the large pore diameter silica gel; and drying the treated silica gel to adhere the fine particles to the inner walls of the large pores. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a detergent composition including a scrubbing agent: that is excellent in scrubbing feeling when used and low in irritation to an object to be washed by the scrubbing agent; and that can be inexpensively manufactured.SOLUTION: There is provided the detergent composition including: the scrubbing agent composed of silica gel particles having an average particle size of 100-1000 μm and a water content of 50-700%; and a surfactant.