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REV00939
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REV00939
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Entry Properties
Last modified
8/25/2016 12:58:35 AM
Creation date
11/21/2007 8:48:55 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Revision
Doc Date
5/1/1995
Doc Name
ENCLOSURE 10
Type & Sequence
AM6
Media Type
D
Archive
No
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<br /> <br /> <br /> <br />PEROXIDE OXIDIZABLE SULFIDE METHOD <br />(ONE VARIATION) <br />Alkaline AAaterlals (Carbonate) Interfere with Oxidation <br />• Carbonate wastes preleached with HCI 8 H,0 r <br />• Leach until reaction slops I <br />PyrRe + Oxygen + Water = yallowboy ~ Suiluric Acid <br />4FeS, + 15 0, + 14 H,0 = Fs(OH), + e H,SO~ <br />Hydrogen Peroxide Aecelentes Oxidation Hate <br />- Procedure <br />• 2.Og solids (-60 meshy <br />• Measure pasts pH <br />• Preleach If necessary <br />• Place air dried solids Into 300m1 tall form beaker <br />• Add 24m1 30% H,O, (no stabilizers) <br />• Heal to 40°C, allow for complete reaction <br />• Add an additional 12mf 309E H,O, i observe until bubbling ceases <br />• Heat to 90 l0 95°C until H,O, is destroyed <br />• Wash sides of beaker to t00mi total volume <br />• Heat to boiling to remove dissolved CO, <br />• Tilrats final solution to pH 7.0 with 0.01 N NaOH <br />- Calculations <br />• meq H•/100g = (ml NaOH) x (N of NaOH) x (100g/sample weight) <br />• %S = 0.0185 (meq H'/100q) - 0.0806 <br />• 7iS x 31.25 = Iona CaCO, equlvalent/1000 tone material <br />- Results: Paste pH, APP. ANP - Calc NNP A Ratio <br />m <br />ti <br />u <br />u <br />a <br />m <br />u <br />m <br />3 <br />A <br />Y <br />n <br />0 <br /> <br /> <br />
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