广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
11期
94-96
,共3页
氟碳铈矿%铈%无水碳酸钠%硫酸
氟碳鈰礦%鈰%無水碳痠鈉%硫痠
불탄시광%시%무수탄산납%류산
bastnaesite%cerium%sodium carbonate anhydrous%sulfuric acid
通过对氟碳铈矿的氧化焙烧过程中加入碳酸钠,回收其中的氟元素。研究了除氟后铈的浸出条件。结果表明除氟后氟碳铈精矿中铈的最佳条件为： H2 SO4浸出液的浓度为3 mol/ L,浸出温度为80℃,浸出时间为50 min。该条件下氟碳铈精矿中铈的浸出率可达84.46%。
通過對氟碳鈰礦的氧化焙燒過程中加入碳痠鈉,迴收其中的氟元素。研究瞭除氟後鈰的浸齣條件。結果錶明除氟後氟碳鈰精礦中鈰的最佳條件為： H2 SO4浸齣液的濃度為3 mol/ L,浸齣溫度為80℃,浸齣時間為50 min。該條件下氟碳鈰精礦中鈰的浸齣率可達84.46%。
통과대불탄시광적양화배소과정중가입탄산납,회수기중적불원소。연구료제불후시적침출조건。결과표명제불후불탄시정광중시적최가조건위： H2 SO4침출액적농도위3 mol/ L,침출온도위80℃,침출시간위50 min。해조건하불탄시정광중시적침출솔가체84.46%。
Sodium carbonate was added to the roasting process of the bastnaesite, and the fluorine element was recycled in this step. The conditions of cerium inviolacy in bastnaesite were instigated after roasting. The results revealed that the optimum extract conditions of cerium in bastnaesite were as follows: the concentration of sulfuric acid leaching solution was 3 mol/ L, the leaching temperature was 80 ℃ and the leaching time was 50 min. The recovery rate of cerium was 84. 46% in the condition.
