%0 Journal Article
%T ANovelApproachtoBioleachSolublePhosphorusfromRockPhosphate
%A 池汝安
%A 肖春桥
%A 黄晓慧
%A 王存文
%A 吴元欣
%J 过程工程学报
%D 2007
%X Anovelapproachtobioleachsolublephosphorusfromrockphosphate,involvingthebio-oxidationofpyritebyadaptatedAcidithiobacillusferrooxidans(At.f)andtheproductofsulfuricacidtodissolverockphosphate,hasbeenproposedinthispaper.ThesolublephosphoruscouldbeleachedmoreeffectivelyinthepresenceofpyritebyAt.fthanthatleacheddirectlybysulfuricacid.Theoptimaltechnologicalparametersarepresented.Thehighestphosphorusleachingrateis9.00%whentheculturesubstrateisthemixtureofFeSO4？7H2Oandpyrite,thephosphorusleachingrateis8.00%whentheinitialpHandculturetimeare2.5and5d,respectively.Theoptimalrockphosphateparticlesizeis0.05mmfortheleachingofphosphorus.Thebiggerthegrainsofpyrite,thelowerthephosphorusleachingrate.ThebacteriumAt.fshouldbeappropriatelyadaptated,whichmakesiteasiertobioleachsolublephosphorusfromrockphosphate.
%K bioleach
%K solublephosphorus
%K rockphosphate
%K pyrite
%K Acidithiobacillusferrooxidans
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=477