Nisbett
Andrew Nisbett, Tucson, AZ US
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20100319490 | Methods for Improving the Recovery of Metal Leaching Agents - Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide a first clarified aqueous leach solution and a second aqueous leach pulp, wherein the second aqueous leach pulp comprises the leached solids at a % solids level greater than the first pulp; (c) subjecting the first clarified aqueous leach solution to a first solvent extraction prior to any significant dilution, whereby a first aqueous raffinate is obtained; (d) subjecting the second aqueous leach pulp to a second solid-liquid separation with dilution via an aqueous stream to obtain a second clarified aqueous leach solution; and (e) subjecting the second clarified aqueous leach solution to a second solvent extraction whereby a second is aqueous raffinate is obtained. | 12-23-2010 |
20150203935 | METAL LEACH AND RECOVERY PROCESS - The present invention relates to a metal leach and recovery process. The process involves subjecting a metal bearing material to a reactive process by combining said metal bearing material with a leaching agent to liberate at least one metal value and forming a first aqueous leach pulp. This first aqueous leach pulp is subjected to a solid liquid separation step thereby providing a first clarified aqueous leach solution and a second aqueous leach pulp. The first clarified aqueous leach solution is then subjected to solvent extraction thereby obtaining the first aqueous raffmate. The second aqueous leach pulp is subjected to at least two further solid liquid separation steps of which some or all are in a counter current decantation (CCD) arrangement. Each of the solid liquid separation steps of the CCD arrangement results in an aqueous liquor and aqueous suspension of solids wherein each aqueous suspension of solids resulting from each solid liquid separation step of the CCD arrangement is passed to the subsequent solid liquid separation step and the suspension of solids resulting from the final solid liquid separation step is removed from the process. Further, each aqueous liquor resulting from each solid liquid separation step of the CCD arrangement is passed to the previous solid liquid separation step. The further solid liquid separation steps result in at least one further clarified aqueous leach solution. The at least one further clarified aqueous leach solution is/are subjected to solvent extraction thereby obtaining at least one further aqueous raffinate. At least a portion of the one or more of the at least one further aqueous raffmates is fed into the final solid liquid separation is of the CCD arrangement. The process provides a flocculation system comprising either: (i) addition of an organic polymeric flocculant to or prior to at least one solid liquid separation step, which polymeric flocculant is formed from 2-acrylamido-2-methylpropane sulphonic acid (ATBS) or salts thereof as a homopolymer or copolymer with at least one water-soluble ethylenically unsaturated monomer; or (ii) addition of an organic polymeric flocculant and at least one support agent to or prior to at least one solid liquid separation step, which at least one support agent is selected from at least one of the group consisting of oxidising agents, reducing agents, irradiation and free radical producing agents. The process provides significantly improved metal extraction and recovery. | 07-23-2015 |
Andrew Nisbett, Tuscon, AZ US
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20100282025 | Method For Metal Recovery and Leaching Agent Recycle in Agitation Leach Plants - This invention is directed to an improved process for metal recovery from ore using agitation leaching comprising dividing leaching of the crushed and mined ore into at least two sequential leaching-solids-liquid separation-solvent extraction sub-circuits, with no significant dilution during solids-liquid separation in these units, and the raffinate from solvent extraction being recycled back to the leaching, with the underflow pulp from the second liquid-solids separator being sent to a final solid-liquid separator, with water washing, from which the washed solids are sent to disposal and the clarified aqueous wash solution is sent to a final solvent extraction, with some or all of the metal-depleted aqueous raffinate from this final solvent extraction being optionally neutralized, and/or being circulated back to the third solid-liquid separation as wash solution and/or to recovery of other metals and/or to disposal to maximize metal recovery and maintain water balance. | 11-11-2010 |
Jared A. Nisbett, Saint James, MO US
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20150063959 | VEHICLE BASE STATION - A method includes positioning a vehicle on a vehicle base station such that a first payload is aligned with an aperture in the vehicle base station. The method includes aligning an empty docking station of a payload advancing assembly with the aperture. The method includes removing the first payload from the vehicle and placing the first payload in the empty docking station of the payload advancing assembly, where the full docking station includes a second payload. The method also includes aligning a full docking station of the payload advancing assembly with the aperture and securing the second payload to the vehicle. | 03-05-2015 |
Jason Nisbett, Wyandotte, MI US
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20150115678 | MANUAL LUMBAR PUMP ASSEMBLY - A pump assembly for a vehicle seatback includes a plurality of air bladders defining a lumbar support. A valve body has an inlet and a plurality of outlets that are coupled with the associated plurality of air bladders. A selection device is operably coupled with the valve body for engaging a select one of the plurality of air bladders with the inlet. A manually compressible air chamber is coupled with the inlet for inflating the select one. | 04-30-2015 |
Jason William Nisbett, Wyandotte, MI US
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20150274050 | VEHICLE SEATING ASSEMBLY WITH MANUAL CUSHION TILT - A vehicle seating assembly includes a seat base. A thigh support is pivotally coupled to and extends forward from the seat base. The thigh support is spring-biased relative to the seat base to a raised position. A lever is operably coupled to a center portion of the thigh support by a hinge. The lever is spring-biased to a raised position relative to the thigh support and includes a rack with a plurality of teeth proximate the hinge. The teeth of the rack are configured to engage a catch projecting from the seat base. A handle extends transversely from the lever. The handle is operable to disengage the rack from the catch. | 10-01-2015 |
Muria Irine Nisbett, Tampa, FL US
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20150364048 | Talk Bracelet and Bonding System - A bracelet is provided having a thematic set of charms that are signatures of ages in the life of a young woman. Each of the charms corresponds to a chapter in a bonding book that initiate a new stage in a girl's life. This book is utilized to assist a mother and daughter overcome any emotional difficulty in the problematic growth process so common in the complex modern world. Various discussion topics are provided therein for each year followed by corresponding final mother daughter signature pages. | 12-17-2015 |