Study on activated carbon prepared with phosphoric acidactivated semi-coke powder

According to the low uiation and palition problems of the large quantitfa dumping of the coke powder the paper propose,proposingblue coke powder as raw material and H3P04 as the activator. chenical reagentis impregnation prereatment.further gas activated nethod and single factor mefnod were applied to analzethe recovery rate pore structure and iodine adsorpton value of acivated carbon preparated on the different activation condtions.AZXF-06 / 10 auomatic: adsober instrement was appied to measure the N2adsorption-desoption isothem and the pore size ditirbution of the prepared activated caroon.The optimized crat condtion of preparing the actiated caroo with the H3PO4 activation method was detemined.The test resuts showed that the impregnation ratio and activated temperature obviousy affected the iodine adsorption value and the recovery rate of the activated caron.When the impregnationeatio was 5 ∶ 1 ,c ality fraction of H3PO4 was 40%, ctivaton temperature was 4 ℃ and actiated time was 4o1 min,the iodine adsorption value of the product acivated cabon reached at 894.13 mg gspecfic surface area was 926.4 m2l g,total pore volume was 0.54 m L / g.