Low cost powder perlite filter aid for petroleum industryThepropertieswhichgiveperlitefilteraidsacompetitiveadvantageovercompetitiveproductsaretheirnottoxicityandlowbulkdensity.Theirlowbulkdensityisveryimportantforthecosteffectivenessoftheprocessbecauseatthefiltrationbedit isthevolumeoffilteraidsthatmattersandnottheirmass.Perlitefilteraidsarealsopreferredinmanyindustriesbecausetheyallowfiltrationequipmenttofilterliquidsatafasterrateandforalongertimewithoutthefilterseptumtobeblocked.Perlitefilteraidsareusedinthefiltrationofwine,sugarandstarch,beverages,edibleoil,aswellaspharmaceuticalsand chemicals.Expandedperliteisanexcellentfilteraid,characterizedbyhighpurityandinertness.Ithasthepropertyofformingpre-coatsandcakesofalargenumberofpores,whichcantrapeffectivelythevarioussolidimpuritiesfromtheliquidtobefiltered. Theirmainadvantagesovercompetitiveproductsaretheirnon-toxicityandlowbulkdensity.PerlitefilteraidsalsofacilitatethefastrateoffiltrationandhighclarityoftheliquidPerlite powder filter aid Specification
ItemspecificationsPH5.5-9.0Soluble substance by water (%)≤0.2Soluble substance by hydrochloric acid (%)≤2.0Pb(%)≤4.0As(ppm)≤4.0Fe2O3(%)<2.0Loss(%)≤2.0Comparison of perlite filter aid and diatomiteFilter medium: syrup
unitPerlite Filter aidDiatomite filter aidAverage filtration ratecubic meter/2 hours10--206--8Filtration time of filtrateminutes1540Consumption of powderkilograms / day70150Filter effective working timehours10--206-8Syrup powder consumptionkilogram / ton0.20.43