The study is aimed at the characteristics of Dingnan ion-type light rare earth ore. The optimum leaching conditions are selected. The leaching rate is over 93% with 1.5~2% ammonium sulfate or ammonium chloride at a solid-liquid ratio of 0.8. In the case of leachate, ammonium bicarbonate or ammonia water is used to control the appropriate pH value, and sulfide is pretreated to remove most impurities, which reduces the amount of precipitant, reduces the cost, and improves the purity of ammonium bicarbonate. Or when oxalic acid precipitates, the rare earth precipitation rate is above 95%, and the product purity is above 94% (carbon ammonium) and 97% (oxalic acid). The process reaches the domestic advanced water of other processes and is not superior to the rare earth compounding of the ore type. A direct grouping process is proposed, and the rare earth carbonate complex grouping method is used to enrich the valuable elements in a single grouping. Low, short process, simple equipment, easy operation control and mine implementation can make group products open to market. This group has not been reported in France and is the first in China. Spider Crane,Spider Crank Truck,5Section Spider Crank Truck,5.0Tons Spider Crane Truck Hubei ruiyate Automobile Co.,Ltd , https://www.nbruiyate-automobile.com