The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2010
Filed:
Sep. 26, 2007
Pedro Antonio Morales Cerda, La Reina, CL;
Ricardo Badilla Badilla Ohlbaum, La Reina, CL;
Pedro Antonio Morales Cerda, La Reina, CL;
Ricardo Badilla Badilla Ohlbaum, La Reina, CL;
Biosigma S.A., Colina, CL;
Abstract
The invention publishes a process to increase the bioleaching speed of ores or concentrates of sulfide metal species in heaps, tailing dams, dumps, or other on-site operations. The process is characterized by the continuous inoculation of the ores or concentrates with isolated microorganisms of thetype, together with isolated microorganisms of thetype, with or without native microorganisms, in such a way that the total concentration of microorganisms in the continuous inoculation flow is of around 1×10cells/ml to 5,6×10cells/ml. In particular, the invention publishes the continuous inoculation ofLicanantay DSM 17318 together withWenelen DSM 16786 microorganisms, or with other native microorganisms at a concentration higher than 5×10cells/ml. In addition to the inoculation of isolated bacteria, the invention includes the addition of oxidizing agents such as the ferric ion produced externally, together with nutrients in the shape of salts of ammonium, magnesium, iron, potassium, as well as air enriched continuously with carbon dioxide to promote bacterial action in the bioleaching process of ores or concentrates.