Development of high purity manganese carbonate from low-grade manganese oxidized ore;

After reduction , manganese is extracted by sulfuric acid and high purity manganese carbonate is obtained after impurity removal from the solution and reaction with ammo.

The technology that high purity manganese carbonate is gained by precipitation from homogeneous solution , manganese minerals used as materials, is studied in this article .

Preparation of high-purity manganese carbonate by leaching manganese ore with sulfur dioxide;

A study on prepapation of high-purity manganese carbonate from mangeniferous weste water;

As to the problem that the electrolytic manganese anode solution produced from the absorption solution of wet flue gas desulfurization with pyrolusite pulp can't be recycled,we think this topic is on obtaining high-purity manganese carbonate form the electrolytic manganese anode solution through removing the impuritity,carbonization crystallizing,removing calcium,natrium,and sulphate.

The oxidation reaction of manganese carbonate ore is carried out more thoroughly than that of pure manganese carbonate, a.

Development of high purity strontium carbonate for posistor;

Evaluation methods and production control measures for particle size of high purity strontium carbonate;

The preparation of the high purity strontium carbonate by green chemical method from the celestite;

A technological study for producing high-purity calcium carbonate by a recycling process;