precious metal catalysts

http://www.chinapeace.cn.alibaba.com SHEET 1 CHEMICAL COMPOSITION OF ELECTROLYSIS SILVER CATALYST: Chemical Composition % Sliver Content(mass fraction)no less than99.998 Impurity Content (mass fraction) no more than Cu Bi Fe Pb Sb Pd Se Te Total Impurities 0.0005 0.0003 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.002 Note: The mass fraction of the electrolysis silver catalyst can be got by 100% subtracting the test impurities quality score on above table. SHEET 2 BULK DENSITY OF ELECTROLYSIS SILVER CATALYST: SizeMesh B.E.T.AdsorptionSurfaceRrea/unit mass,cm2/gm RelativePerformanceIndex Void Volume(cc/g) Bulk Density(g/cc) SpecificVolume(cc/g) 16*18 82 1.00 0.247 2.922 0.342 20*24 96 1.05 0.221 3.163 0.316 28*30 94 0.67 0.145 4.164 0.240 36*40 97 0.30 0.109 4.902 0.204 SHEET 3 CHARACTERISTICS OF ELECTROLYSIS SILVER CATALYST: 1) Large specific surface area 2) Good thermal stability 3) Small system resistance 4)  High purity 5) High poison resistance 6) Excelent crushing strength 7) Longer catalytic life (3-5 months before it has to refined and reactiviated) 8)  High formaldehyde production 9)  High methanol conversion rate 10) Low acid formation rate 11) Low production costs