PAC is a white powder of aluminum hydroxide of high purity hydrochloric acid was spray-dried with the processing of a milk white or white fine powder-like, easily melts in air exposed.
High purityaluminum hydroxidepowder andhydrochloric acidby spraydryingorprocessing of awhitefine powder-likewhitepowder,meltingeasilyexposedto the air.In recent years,whitePAChas replacedthe paper industryasaluminum sulfateprecipitationneutral sizingagent.
WhitePAC-whichcomparedwith ordinarypoly aluminumhas the following characteristics: One, AL2O3content is high,"29.5%
Second, thesaltis low,only50%, while the averagedegree ofpolymerizationof aluminumsaltisabout90%
Third, thewater insoluble matteris small,only0.3%, while the averagepoly aluminummore than2%.
Fourth,purewhite color, in addition toAL +outsidedoes not contain anyheavy metals,clear and transparentsolutionofthe productwater, there is nocolor,while the ordinaryaqueous solutionof polyaluminumcolor yelloworbrown.
Fifth, theiron contentis low, withlowsolublecharacteristics,is used foroil-waterseparationproject