期刊论文

Study on Leaching Process of a Beryllium Concentrate from Xinjiang

中文

金属矿山

1001-1250

2014

9

69-71

湖南省科技厅重点项目（编号：2013GK2023）.

本校为第一机构

新疆某铍精矿粒度为0.074～0 mm,铍含量为5.60％.为了高效提取该铍精矿中的铍,对硫酸加热预处理—搅拌浸出工艺中浓硫酸的用量、预处理温度、搅拌浸出过程的液固比和浸出时间进行研究.结果表明:在铍精矿与浓硫酸质量比为1∶1.5、预处理温度为180℃、搅拌浸出的液固比为2∶1、浸出时间为4h的情况下,氧化铍浸出率达到97％,该工艺的浸出效果良好;浓硫酸的用量、预处理温度、搅拌浸出过程的液固比和浸出时间对氧化铍浸出率都有显著的影响,其中以浸出温度的影响最为显著.通过此工艺来浸出铍精矿不仅能大大降低能耗,还能有效节约企业成本,为铍精矿的浸出提供借鉴.

In order to efficiently extract beryllium in a beryllium concentrate, Xinjiang province,with particle size from 0. 074 to 0 mm, beryllium content of 5.60%, the dosage of concentrated sulfuric acid, pretreatment temperature, the ratio of liquid to solid, and leaching time in process of heating sulfuric acid pretreatment-agitation leaching are studied. The result show that leaching rate of beryllium oxide reaches 97% with mass ratio of beryllium concentrate to concentrated sulfuric acid of 1： 1.5, pretreatment temperature at 180 ℃ ,liquid to so...