CAJ | 학술논문

我国某大型铷矿床为国内首个独立铷矿床,Rb2 O品位为0．12%,总金属量近10万t,矿石中的铷以类质同象形式存在于黑云母中。为高效回收该铷矿资源,采用富集黑云母的方式进行了铷回收试验研究。结果表明,在磨矿细度为-0．074 mm占60%的情况下,采用2粗3精、中矿顺序返回流程处理该矿石,可取得Rb2 O品位为0．28%、回收率为65．93%的铷精矿。试验指标较好,可实现铷的高效回收。
아국모대형여광상위국내수개독립여광상,Rb2 O품위위0．12%,총금속량근10만t,광석중적여이류질동상형식존재우흑운모중。위고효회수해여광자원,채용부집흑운모적방식진행료여회수시험연구。결과표명,재마광세도위-0．074 mm점60%적정황하,채용2조3정、중광순서반회류정처리해광석,가취득Rb2 O품위위0．28%、회수솔위65．93%적여정광。시험지표교호,가실현여적고효회수。
A large rubidium deposit in our country is considered as the first domestic deposit with Rb2 O grade of 0. 12%and the total metal volume of nearly 100 000 t. The rubidium exists in biotite in form of isomorphism. Beneficiation experiments were carried out to efficiently recover the rubidium. The results showed that at the grinding fineness of 60% passing 0. 074 mm,rubidium concentrate with Rb2 O grade of 0. 28% and recovery of 65. 93% was obtained through the flotation process of two roughing-three cleaning,and middles back to the flow-sheet in turn. With good flotation index,rubidium can be well recov-ered by this process.