Abstract: According to an example aspect of the present invention, there is provided a method for processing a black mass to battery chemicals. The method comprises leaching the black mass using sulfuric acid and a reducing agent to produce a first process solution comprising lithium sulfate and at least one of manganese sulfate, copper sulfate, nickel sulfate and cobalt sulfate, and impurities, which first process solution is separated from graphite by filtration. Thereafter, the process comprises removing impurities from the first process solution using lithium hydroxide, to produce a second process solution, separating lithium from the second process solution using chromatographic lithium separation producing lithium sulfate and a third process solution and separating at least one of copper, nickel and cobalt from the third process solution by ion exchange producing lithium sulfate.

Abstract: The present invention relates to separation and recovery of metals from ground alkaline batteries using anode mud (zinc electrolysis waste) and other manganese and zinc containing materials. The material commonly referred to as alkaline black (AKB) is solubilized into sulfate media and the manganese to zinc ratio is adjusted. The solution containing metals is processed using crystallization and ion exchange methods to produce manganese sulfate and zinc sulfate solutions for several possible applications.

Abstract: The present invention relates to the recovery and purification of lithium from lithium containing sources, like lithium ion battery materials, using ion exchange. A lithium salt containing solution is passed through an acid cation exchange resin, and a lithium raffinate and a mixture of other elements such as metals like nickel, cobalt and manganese, are recovered as products. The lithium raffinate can then be processed into other lithium products such as lithium carbonate and lithium hydroxide.

Abstract: The present invention relates to separation and recovery of metals from ground alkaline batteries using anode mud (zinc electrolysis waste) and other manganese and zinc containing materials. The material commonly referred to as alkaline black (AKB) is solubilized into sulfate media and the manganese to zinc ratio is adjusted. The solution containing metals is processed using crystallization and ion exchange methods to produce manganese sulfate and zinc sulfate solutions for several possible applications.