常見例句A novel process was investigated for extracting rare earth from bastnasite concentrate by chlorination roasting. 研究了氟碳鈰精礦經(jīng)預脫氟后加氯化銨焙燒分解,再用熱水浸取焙砂從而制取氯化稀土的新工藝。This paper investigated the comprehensive utilization of bastnasite, barite and fluorite in a rare earth mine in the southwest of China. 本文根據(jù)西南某稀土礦的礦石性質(zhì),探討了該礦可利用的稀土(氟碳鈰礦),鋇(重晶石)和氟(螢石)等有價元素的綜合利用價值。The technological conditions of preparing polishes from bastnasite such as pretreating with hydrochloride acid,roasting and quenching were studied. 以微山氟碳鈰精礦為原料,研究了預處理、焙燒、淬火等工藝條件對制備稀土拋光粉性能的影響。The reductive extraction method of bastnasite baked by sodium carbonate and low acidity HCI leaching for making rare earth chloride is reported. 氟碳鈰礦純堿焙燒低酸浸出,在還原條件下直接用鹽酸浸出制取工業(yè)氯化稀土。Zhu Guocai, Qiu Xin*,Chi Ruan,Xu Shengming,Zhang Zhigeng,Tian Jun, Recovering RE with NH4Cl Roasting from Bastnasite Ore, MINPREX2000, Melbourne, Australia , p237-239(Eng. 時文中,朱國才,張志庚,王競研,池汝安;微山稀土精礦經(jīng)固氟后采用氯化銨法回收稀土;過程工程學報;2001,(3)With the pure bastnasite mineral as the research object,the flotation effect of applying the mixtures of phthalic acid,hydroximic acid,isooctyl alcho hol and kerosene were studied. 以氟碳鈰礦純礦物為研究對象,研究了鄰苯二甲酸、羥肟酸與異辛醇、煤油等混用作捕收劑時的浮選效果。 返回 bastnasite