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采用脱氟剂将氟碳铈精矿中的氟转化为水溶性氟洗去，再用氯化铵焙烧法分解经预脱氟的氟碳铈精矿，直接用水浸取稀土。考察了反应温度、时间、氯化铵用量及脱氟剂用量对该矿稀土提取率的影响，脱氟精矿在焙烧温度４８０℃，焙烧时间１．５ｈ，氯化剂／矿重＝ ２．０ 时，稀土提取收率达８４．３％ 。其氯化选择性高，浸出液中Ｆｅ、Ａｌ、Ｓｉ等非稀土杂质分别为稀土的０．１０％ 、０．００５％ 和０．０１６％ ，经碳酸氢铵沉淀，获得了晶型碳酸稀土（折算稀土氧化物纯度９２．０７％ ）产品。
The use of defluoridation agent in the bastnaesite fluoride into water-soluble fluorine wash away, and then decomposition of ammonium chloride roasting pre-defluorinated bastnaesite concentrate, direct leaching of rare earth. The effects of reaction temperature, time, amount of ammonium chloride and amount of defluoridation agent on extraction rate of REE were investigated. Fluorine removal rate was 480 ℃, calcination time was 1.5h, chlorination agent / ore weight was 2. 0, the extraction yield of rare earth reached 84.3%. The chlorination selectivity is high. The non-rare earth impurities such as Fe, Al, Si and other non-rare earth impurities in the leaching solution are 0.10%, 0.005% and 0.016% of the rare earth respectively. After the ammonium bicarbonate is precipitated, the crystalline rare earth carbonate Conversion rare earth oxide purity 92.07%) products.