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A silicate catalyst prepared which has a mezopore type (MCM-41) ,by manner that condensation where the interaction between Tetra Ethyl Ortho Silicate (TEOS) with 3-Mercapto Propyl Tri-methoxy Silane (MPTS), in the presence of superficial active su bstance {Cetyl Trimethyl Ammonium Bromide(C 16 TAB)}at room temperature. The process of changing the surface hydophilic of the catalyst has done by using substance( Hexa methyl disilazane), which symbolized by the symbol (HMDS).
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