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Patent Searching and Data


Title:
MICRO-ORGANISMS FOR LOW-TEMPERATURE BIO-LEACHING PROCESSES
Document Type and Number:
WIPO Patent Application WO/2013/113132
Kind Code:
A3
Abstract:
The invention relates to bacterial strains isolated from Acidithiobacillus, which can bio-leach mineral sulphides at low temperatures. Said strains can grow at temperatures of between 5 and 10 °C and can adhere to solid supports, separately or together, forming a bio-film. The Acidithiobacillus strains, known as Puri BH20, Yaku BH19 and Urna BH12, are deposited at DSMZ (Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig, Germany) under accession numbers DSM 25319, DSM 25318 and DSM 25298, respectively. The invention also relates to a process for the continuous generation of a bacterial inoculant for a process for the bio-leaching of sulphurous minerals in heaps or dumps at low temperatures.

Inventors:
COTARAS TADIC DAVOR (CL)
VIEDMA ELICER PABLA LETICIA (CL)
TOBAR GOMEZ PIA MACARENA (CL)
GIDEKEL BLUFSTEIN MANUEL (CL)
Application Number:
PCT/CL2013/000005
Publication Date:
October 03, 2013
Filing Date:
January 29, 2013
Export Citation:
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Assignee:
BIOTECNOLOGIAS DEL AGUA LTDA (CL)
UXMAL S A (CL)
FUNDACION COPEC UNIVERSIDAD CATOLICA (CL)
International Classes:
C12N1/20; C22B3/18
Foreign References:
US7601530B22009-10-13
US20070042482A12007-02-22
ES2087033A11996-07-01
Other References:
LILJEQVIST M.: "Low Temperature Removal of Inorganic Sulfur Compounds From Minig Process Waters.", BIOTECHNOLOGY & BIOENGINEERING., vol. 108, no. 6, 2011, pages 1251 - 1259
KUPKA D.: "Bacterial Oxidation of Ferrous Iron at Low Temperatures.", BIOTECHNOLOGY & BIOENGINEERING., vol. 97, no. 6, 2007, pages 1470 - 1478
Attorney, Agent or Firm:
COTORAS TADIC, Davor (Ñuñoa, 53 Santiago, CL)
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