Study on Adding Ammonium Hydrogen Fluoride to Improve Manganese Leaching Efficiency of Ammonia Leaching Low-Grade Rhodochrosite

The ammonia leaching method for treating low-grade rhodochrosite has the advantages of a good impurity removal effect and low environmental pollution. In this paper, aiming at efficiency treated by method, studies on enhancing manganese using ammonium hydrogen fluoride as an additive are carried out. effects different concentrations, temperatures, times, liquid-solid ratios, stirring rates, addition with without were comparatively studied, parameters concentration, temperature, dosage optimized in experimental study. results indicated that treatment could effectively increase manganese, optimal process obtained. Meanwhile, didn’t affect quality steamed product.