International Precious Metals (IPMCF) Message Board

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Gold/Mining/Energy : International Precious Metals (IPMCF)

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To: Bill Jackson who wrote (2384)	2/15/1997 11:33:00 AM
From: Zeev Hed	of 35569

Bill: The chloride leach will indeed involve low viscosity liquids, but the chloride leach yielded the earlier results (of .048 oz/ton), the new leach at high temperature involves admixtures of hydroxides (if I am not mistaken), and at higher temperature, these will disolve the silica host mineral to produce sodium and potasium silicates, these are very high viscosity fluids and the reaction will become diffusion limited. Furthermore, if you have only surface reaction you will not leach the micro inclusion within the quartz grains and to get to themyou have once again a diffusion limited process through the bulk of the quartz particles. Zeev

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