【摘 要】
:
A price of rhenium which is used at high technology industries such as aerospace industry and oil industry has constantly increased for last several years b
【机 构】
:
Korea Institude of Geoscience & Mineral Resource (KIGAM)Mineral Resources Research Division, 92 Gwah
【出 处】
:
第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg
论文部分内容阅读
A price of rhenium which is used at high technology industries such as aerospace industry and oil industry has constantly increased for last several years because of increasing demand.We investigated molybdenite roasting dust containing rhenium as a by-product to match the demand.This study describes leaching behavior of rhenium from the molybdenite roasting dust by NaOH leaching.The effects of concentration of NaOH,reaction temperature and leaching time for extraction of rhenium were examined.This experiment showed that the leaching efficiency of rhenium was 88.9% at following conditions: 4M NaOH, reaction temperature 80℃, leaching time 6h, solid/liquid ratio 50g/500ml, agitation speed 250rpm.
其他文献
Calcium aluminate slag is one of the materials which are used to producing alumina and its main components are 12CaO·7Al2O3 and 2CaO·SiO2.MgO is one of th
With shortage of raw resources and constraints of circumstance protection, it is more and more important to recycle nickel, cobalt and manganese from spent
Property of certain cobalt raw material was introduced, and according to its unique chemical composition, the processes, including washing with hot acid, le
冬春季节,塑料大棚密不透风,里面温度高,湿度大,生长旺盛的蔬菜容易遭受氨气危害,轻者影响植株生长,严重时枯萎死亡。氨气主要来自施于土壤的氮素化肥和有机肥,尤其在施肥过
研究数据显示,1973年至2011年间世界各地男性的精子质量呈下降趋势,精子浓度和精子数量下降50%~60%[1],对男性生育力造成严重影响,引起了人们的担忧.精子质量的下降与饮食结构、
自动盖片机在如今病理切片数量与日俱增的情况下已在各大医院普及,自动盖片机的种类很多.本科室现有樱花胶带自动盖片机及樱花盖玻片自动盖片机各一台.盖玻片盖片机是在载玻
11月2日上午,“面向北美、‘钱’进中国”中美地产投资视讯论坛在北京国际会议中心隆重举行。曾经成功举行过中法房地产记者论坛的《安家》杂志再创新招,联手美洲最大的中文
The multi-component extraction systems have accurately described by establishing the balance state equations of the system.On the basis of the state equatio
她,身处平凡的岗位;她,扎实地做着基础性工作:她,认真地践行着“五者”的誓言;她,朴实地奉献着自己的青春年华。山西省运城市盐湖区有一处宁静而又生机勃勃的地方——解放路
何谓国门区国门区,目前主要是以三元桥周边和太阳宫偏西为中心,由机场高速、三四环、城铁围合成而成的区域,以凤凰城、第三置业、远洋新干线、半岛国际公寓、UHN 国际村、时