| Phosphogypsum:Part Ⅰ:Mineralogical,Thermogravimetric,Chemical and Infrared Characterization |
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| 摘 要： | 1-IntroductionPGisanimportantindustrialby-productderivedfromphosphoricacidandphosphatefertilizerman-ufacturesbydihydrateprocess.Theamountofthiswasteexceedsconsiderablythanthemassoftheprod-uct,becausetheamountofthewastePGbeingpro-ducedintheacidrangesfrom4.5to5.5tpertonofPzOsintermsofdrymatter.ThePGissepa-ratedfromthemediumofdissolvedphosphateoreinsulphuricacidbyfiltration.WhereasthemajorpartofthepureP2O5isobtainedfromthesedimentbymeansofacountercurrentwashingwithwater1'2l.Theobtainedfilter…
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