|CHEMETICS INC. Patent applications|
|Patent application number||Title||Published|
|20150247249||SIDE STREAM REMOVAL OF IMPURITIES IN ELECTROLYSIS SYSTEMS - A side stream subsystem can be used to remove impurity species from the recirculating alkali metal chloride solution in certain electrolysis systems. Silicon and/or aluminum species can be removed via precipitation after introducing an alkali metal hydroxide and magnesium chloride in a side stream line in the subsystem. The invention can allow for a substantial reduction in raw material and capital costs.||09-03-2015|
|20150247218||HYDROMETALLURGICAL PROCESS USING MULTI-STAGE NANOFILTRATION - Nanofiltration can be used to improve a hydrometallurgical process in which valuable metal is extracted from ore or tailings by leaching with a suitable lixiviant. The process requires at least two nanofiltration sub-systems in which raffinate from a solvent extraction process is treated in a nanofiltration subsystem, after which permeate therefrom is combined with a pregnant solution stream and is treated in a second nanofiltration sub-system. This arrangement can lead to advantages in the amount of lixiviant recovered, in the raw materials required, in the effluent produced, in the size of plant, and in overall cost.||09-03-2015|
Patent applications by CHEMETICS INC.