Filtration of Fines & Slimes

Table of ContentsNature of SlimeFiltering RateFiltering AreaSlime CakesBuilding up Slime Filter CakesFilter Cake WashingComplete Cycle of FiltrationData from Slime Filtration PlantsConclusions The nature of slimes handled in the

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Various

Attapulgite Ceramics

The term attapulgite and palygorskite are synonomous. Most mineralogists use the term palygorskite but attapulgite is the preferred industrial term. The structural formula of attapulgite

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Fine Gold Recovery & Refining

Table of ContentsHow to Remove Copper from Fine GoldAcid Treatment of Fine GoldPreliminary TestsTreatment of Roasted Slime with Sulphuric & Nitric AcidsTreatment of Raw Slime with

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Precious Metal Refinery Procedures

Table of ContentsRecovery of Metals from Mattes and SlagsBy Products of Gold RefinerySlagsMattesLead Bath Treatment of MatteProgrammeSummaryReduction of Mattes to MetalsReduction of Matte to Base BullionCupellation of

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Gold Refinery Procedures

Table of ContentsPast Gold Refinery PracticeClean-upRoastingSmeltingBarring FurnaceGranulation & Sulphuring of BullionBest Gold Refining MethodsSilver & Gold Smelting PracticeMatte SmeltingTreatment Times and QuantitiesAmalgamationFlotation StrakesRoasted Concentrate StrakesRetorting of Amalgam

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Fire Assaying History

The beginning history of fire assaying can be traced to the finds in Troy II (about 2600 B.C.) and in the Cappadocian Tablets (2250-1950 B.C.).

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