# GeoBiotics, LLC

GeoBiotics, LLC Patent applications | ||

Patent application number | Title | Published |
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20100199808 | METHOD FOR RECOVERING METAL VALUES FROM REFRACTORY SULFIDE ORE - A method for recovering metal values from refractory sulfide ores is provided. The method includes the steps of separating clays and fines from crushed refractory sulfide ore, forming a heap from the refractory sulfide ore, producing a concentrate of refractory sulfide minerals from the separated fines and adding the concentrate to the heap, bioleaching the heap to thereby oxidize iron sulfides contained therein, and hydrometallurgically treating the bioleached ore to recover metal values contained therein. | 08-12-2010 |

20100126314 | HIGH TEMPERATURE HEAP BIOLEACHING PROCESS - A heap is constructed with hypogenic copper sulfide bearing ore to include exposed sulfide mineral particles at least 25 weight % of which are hypogenic copper sulfides. The concentration of the exposed sulfide mineral particles is such that the heap includes at least 10 Kg of exposed sulfide sulfur per tonne of solids in the heap. At least 50% of the total copper in the heap is in the form of hypogenic copper sulfides. A substantial portion of the heap is heated to at least 50° C. The heap is inoculated with a thermophilic microorganism, and bioleaching is carried out so that sufficient sulfide mineral particles in the heap are biooxidized to oxidize at least 10 Kg of sulfide sulfur per tonne of solids in the heap and to cause the dissolution of at least 50% of the copper in the heap in a relatively short period of time. | 05-27-2010 |

20100035319 | METHOD FOR PRODUCING SYNFUEL FROM BIODEGRADABLE CARBONACEOUS MATERIAL - A bioreactor for producing synfuel from carbonaceous material includes a stacked particle heap comprising biodegradable carbonaceous material, an aerobic microbial consortium fermenting the biodegradable carbonaceous material into synfuel, and a gas impermeable barrier operatively covering the stacked particle heap. The covered particle heap is purged with at least one non-oxygenated gas. The bioreactor also includes a supply of anaerobic microorganisms which biodegrade the carbonaceous material within the stacked particle heap into synfuel. The synfuel is mixed with at least one reactor byproduct. The reactor byproducts are separated from the synfuel, which may include synthetic petroleum, alcohol, oil, and/or a gaseous fuel containing methane. | 02-11-2010 |

20090235784 | PRE-TREATMENT OF FEED TO NON-STIRRED SURFACE BIOREACTOR - The invention relates to a process for the pre-treatment of feed to a non-stirred surface heap leach bioreactor by applying in sequence first and second pre-treatment solutions to a feed to a non-stirred surface heap leach bioreactor, in which the first solution has an iron content greater than 5 g/l and pH below 2, and the second solution contains a substantially higher microbial population. The invention further relates to methods of adapting a microbial population for use in a non-stirred surface heap leach bioreactor. | 09-24-2009 |