我厂是采用高炉法生产钙镁磷肥,在生产过程中须配入一定量的蛇纹石。蛇纹石取自本省,其中含有镍0.3％左右。 我厂年产钙镁磷肥4～5万吨。历年来的生产统计表明,每生产一吨磷肥可得到含镍3～6％(P18％±、Fe76％±)的镍磷铁20公斤左右。高炉生产钙镁磷肥时,镍的直接回收率一般可达60～90％。 I plant is the use of blast furnace production of calcium magnesium phosphate, in the production process must be accompanied by a certain amount of serpentine. Serpentine from the province, which contains about 0.3% nickel. I plant annual output of calcium magnesium phosphate 4 to 50,000 tons. Production statistics over the years show that for every ton of phosphate fertilizer produced, about 20 kg of Ni-P can be obtained with 3 to 6% nickel (P18% ±, Fe76% ±). Blast furnace production of calcium magnesium phosphate, the direct recovery of nickel up to 60 to 90%.