Metallurigical Coke Backfill
METALLURGICAL COKEAnode Back fill The back fill maintains moisture of anode surroundings and lowers the anode to earth resistance.Sacrificial anodes and buried permanent reference cell backfill specificationsAnode TypeComposition of Backfill [%(m/m)]Application Gypsum (CaSO4.2H2O)Anhydrous SodiumSulphateAnhydrous Sodium MagnesiumBentoniteMg anode 50--50≤20Ω.m25-2550≤20Ω.m755-20＞20Ω.m15152050＞20Ω.m15-3550＞20Ω.mZn anodeAnode bed coke specification ApplicationTypeC, % MeshInside fillingPetroleum coke≥85% 1－3mmDeepwellPetroleum coke≥85% 2－6mmMETALLURGICAL COKEFixed carbon90%Ash 8%Moisture10%Volatiles1%Sulphur1.2%Bulk Density:500-600kg/CBMResistivity:35-55ohm.cm*Special backfill can be supplied upon receipt request.
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