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作 者:陈福林 CHEN Fulin(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization;Panzhihua Iron&Steel Research Institute Co.,Ltd.of Pangang Group,Panzhihua 617000,Sichuan,China)
机构地区:[1]钒钛资源综合利用国家重点实验室,攀钢集团攀枝花钢铁研究院有限公司,四川攀枝花617000
出 处:《矿产综合利用》2024年第1期139-143,共5页Multipurpose Utilization of Mineral Resources
摘 要:这是是一篇矿物加工工程领域的论文。对四川马边某低品位镁质磷矿开展了化学组分、矿物组成及嵌布特征研究,矿石主要有用矿物为胶磷矿,主要脉石矿物为白云石,有用矿物和脉石嵌布粒度较细,宜采用单一反浮选法实现其经济利用。经一系列条件实验确定矿石适宜磨矿细度为-0.074 mm 65%,浮选工艺为一段粗选、两段精选、两段扫选、中矿顺次返回,以文中浮选闭路工艺流程及参数,在原矿含P_(2)O_(5)18.44%、MgO 9.52%条件下,获得了产率43.97%,P_(2)O_(5)品位33.86%,MgO品位1.35%,P_(2)O_(5)回收率81.84%的磷精矿,工艺成本较低,可使低品位磷矿得到较好经济利用。This is an article in the field of mineral processing engineering.Chemical components,mineral compositions and embedded features of the low grade phosphate had been studied.The main valuable mineral in the ore was collophanite and the main gangue mineral was dolomite.The disseminated extents between valuable mineral and gangue mineral were very small so single reverse flotation method had been used in the article which could make the ore utilize by low lowcost.Through many tests and the beneficiation technological processes of the low grade phosphate had been ascertained that the grinding fineness was 65%below 0.074 mm,and once rougher flotation,twice well-chosen and twice scavenging,and the phosphorus ore concentrate had been gained which yield was 43.97%,P_(2)O_(5)grade 33.86%,MgO grade 1.35%and the recovery of P_(2)O_(5)was 81.84%when the raw ore’s P_(2)O_(5)grade was 18.44%and MgO grade was 9.52%.In this way the cost was low and the low grade phosphate could be utilized effectively.
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