稀土草酸盐沉淀法是制备稀土氧化物的主要方法。
Precipitation by oxalate is the primary method to produce rare earth oxides.
有关负载有机稀土草酸溶液直接沉淀工艺的研究，已见一些报道，但大都停留在实验室研究基础上。
There are some reports about the technology for precipitating rare earth oxides directly from loaded organic phase with oxalic acid solution, but they just stop laboratory research mostly.
研究了料液浓度、酸度、温度、草酸浓度、铈铽配分改变对稀土收率的影响。
The main factors that affect the rare earth recovery, such as concentration of rare earth and oxalic acid, acidity, temperature of the solution, and the composition of cerium and terbium are studied.
主要研究稀土镁合金中稀土总量的测定。选择草酸作沉淀剂，重量法测定稀土总量。
The determination of total rare earth content of rare earth-magnesium alloy were studied. It was used oxalate to be sediment to determine of total rare earth content with gravimetric method.
稀土草酸盐中直接加氢氟酸置换生成氟化稀土，选择加入120%理论量的氢氟酸有较高的转化率和回收率。
The RE fluoride can be prepared directly from oxalate by adding hydrofluoric acid . The ratio of transformation and recovery is high if the hydrofluoric acid is added by 120% theoretical amounts.
经试验证明，采用该种方法处理草沉废水并将产生的稀盐酸和草酸回用于稀土生产是可行的。
The test results show that the method is feasible. The reclamation of diluted hydrochloric acid and oxalic acid can reach more than 95%.
经试验证明，采用该种方法处理草沉废水并将产生的稀盐酸和草酸回用于稀土生产是可行的。
The test results show that the method is feasible. The reclamation of diluted hydrochloric acid and oxalic acid can reach more than 95%.
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