公开(公告)号：US20180327915A1

公开(公告)日：2018-11-15

申请号：US15525778

申请日：2015-11-23

Applicant: PROTECH SPA

Inventor： Jaime Roberto SIMPSON ALVAREZ

IPC: C25B9/02 ,  C25B9/10 ,  C25C7/04 ,  C25C1/00 ,  C25D17/12

Abstract: Multipurpose electrolytic device (EMPD) for forced or spontaneous electrolytic processes, which incorporates selective and unidirectional ion exchange membranes in order to separate between two or more compartments and allow electrical conductivity therebetween, with independent electrolytes for controlled electrolytic ion transformation, regardless of the chemical composition of the electrolyte containing the element of interest, with high faradaic efficiency and high energy performance. The invention also relates to a method. The device can be used for processes such as metal electrowinning (EW), metal electrorefining, electrooxidation (EOXI) and electroreduction (ERED) of ionic species. The device uses two independent, energetically suitable electrolytes, which allow controlled electrolytic ion transformation, with high faradaic efficiency and high energy performance, unlike current forced electrolysis methods, which operate with a common electrolyte. The device can be used in any aqueous medium, for example an acid environment, such as sulphuric, hydrochloric or other acid, a caustic-soda-based alkaline, or ammonium, thiocyanate or thiosulfate salts, with or without the presence of organic reactants.

公开(公告)号：US20180016684A1

公开(公告)日：2018-01-18

申请号：US15548918

申请日：2016-02-04

Applicant: Jaime Roberto SIMPSON ALVAREZ ,  PROTECH SPA

Inventor： Jaime Roberto SIMPSON ALVAREZ

IPC: C25B1/26 ,  C25B9/08 ,  C22B3/04 ,  C22B3/42 ,  C25C7/04 ,  C25C1/12

Abstract: The invention relates to a combined electrolytic system for precipitating different types of metals (copper, zinc, nickel, cadmium, cobalt, silver, gold) and regenerating reagents for the leaching of metal sulphurs from solutions from leaching in a sulphuric-oxidising or hydrochloric-oxidising environment, including a process that permits the combining of the current reduction processes followed by oxidising processes which are complex and potentially dangerous from an environmental point of view, thereby preventing the risky transportation of dangerous substances, loading and unloading operations, storage and manipulation of toxic materials, and reducing the environmentally contaminating waste, producing a commercial-quality cathodic product and a solution that is re-used in the leaching process. The system comprises a membrane cell device (3) that is connected via ducts and valves to one or more oxidising agent tanks (7), to one or more anodic solution tanks (6) and to one or more cathodic solution tanks (2), wherein said membrane device (3) is formed by one or more cathodic compartments (4) and by one or more anode compartments (5), wherein each of the cathodic compartment(s) (4) is/are separated from each of the anode compartment(s) (5) by a membrane for selective and uni-directional ion exchange.