Patent application number | Description | Published |
20100154593 | Production of Metallic Nickel with Low Iron Content - A process for producing a metallic nickel product with a low iron content, including the steps of: (i) providing an acidic product liquor containing at least nickel and iron; (ii) subjecting said acidic product liquor to an ion exchange process wherein an ion exchange resin selectively absorbs said nickel and part of the iron from said product liquor; (iii) eluting the nickel and iron from said resin with an acidic solution to produce an eluate containing said nickel and iron. (iv) neutralising said eluate to a pH value in the range from 2.5 to 3.5 to cause precipitation of a substantial amount of said iron, leaving an iron depleted eluate; (v) neutralising the iron depleted eluate to a pH value in the range from 7 to 8 to cause precipitation of nickel hydroxide containing low iron; (vi) calcining said nickel hydroxide to convert it to nickel oxide; (vii) subjecting said nickel oxide to direct smelting in the presence of a reductant to produced a molten nickel phase; and (viii) refining said molten nickel phase by oxidation to produce a metallic nickel product with low iron content. | 06-24-2010 |
20100282024 | Limonite and Saprolite Heap Leach Process - A process for the recovery of nickel and/or cobalt from a lateritic ore by heap leaching, the process including the steps of: a) forming one or more heaps from a lateritic ore body wherein that lateritic ore body includes a blend of both limonitic and saprolitic type ores; b) leaching the one or more heaps with a leach solution; and c) recovering the nickel and/or cobalt from the resultant heap leachate. | 11-11-2010 |
20100296988 | SELECTIVELY LEACHING COBALT FROM LATERITIC ORES - A heap leach process for the recovery of nickel and cobalt from a lateritic ore, said process including the steps of leaching and/or agglomerating the ore with a lixiviant that includes ferrous ions, wherein the lixiviant is able to liberate cobalt from the cobalt containing minerals within the ore in preference to nickel, to produce a cobalt rich pregnant leach solution relatively free of nickel. | 11-25-2010 |
20110056333 | Process For Atmospheric Leaching Of Laterite Ores Using Hypersaline Leach Solution - An atmospheric leaching process for the recovery of a nickel and cobalt from a lateritic ore, said process including the steps: (a) preparing a slurry of the lateritic ore with saline or hypersaline water having a total dissolved solids (TDS) content greater than 30 g/L; (b) leaching the slurry of the lateritic ore with sulfuric acid at atmospheric pressure, (c) recovering nickel and cobalt from the resultant leachate. | 03-10-2011 |
20110083533 | Saprolite Neutralisation of Heap Leach Process - A heap leach process for the recovery of nickel and/or cobalt from a laterite ore, said process including the steps of: a) providing one or more heaps of a nickeliferous laterite ore; b) leaching the ore in a heap leach step by applying acid to one or more heaps to provide a pregnant leach solution; c) neutralising the pregnant leach solution with ground saprolite ore; and d) recovering the nickel and/or cobalt from the neutralised pregnant leach solution. | 04-14-2011 |
20110100163 | Atmospheric Acid Leach Process For Laterites - An atmospheric leach process in the recovery of nickel and cobalt from lateritic ores, said process including the steps of: a) providing limonitic and saprolitic ore fractions of a laterite ore; b) separately slurrying the limonitic and saprolitic ore fractions to produce a limonitic ore slurry and a saprolitic ore slurry; c) separating any limonitic type minerals from the saprolitic ore slurry to produce a saprolitic feed slurry; d) milling or wet grinding the saprolitic feed slurry; e) leaching the limonitic ore slurry with concentrated sulfuric acid in a primary leach step; f) introducing the saprolitic feed slurry to the leach process in a secondary leach step by combining the saprolitic feed slurry with the leached limonite slurry following substantial completion of the primary leach step, releasing sulfuric acid to assist in leaching the saprolite feed slurry, wherein the saprolitic feed slurry is substantially free of all limonitic type minerals before it is introduced to the leach process. | 05-05-2011 |
20110150729 | Process for Heap Leaching of Nickeliferous Oxidic Ores - A process for the recovery of nickel and cobalt from a nickeliferous oxidic ore by heap leaching and/or atmospheric agitation leaching, the process including the steps of: mixing a sulfur containing reductant selected from reductants that do not include copper into a nickeliferous oxidic ore; leaching the reductant/ore mixture with an acidic leach reagent to produce a pregnant leach solution including nickel, cobalt, iron substantially in a ferrous form and other acid soluble impurities; and recovering the nickel and cobalt from the pregnant leach solution. | 06-23-2011 |
20110232421 | Nickel Recovery from a High Ferrous Content Laterite Ore - A process for the recovery of nickel and/or cobalt from laterite or partially oxidised lateritic ores having a substantial proportion of the iron present in the ferrous state, said process including the steps of:
| 09-29-2011 |
Patent application number | Description | Published |
20110004637 | MOBILE DATA AND SOFTWARE UPDATE SYSTEM AND METHOD - Data is shared between multiple enterprise data sources and mobile clients in a distributed system such that requests from a mobile client for enterprise data are received, the appropriate enterprise data sources that contain the requested data are determined, and the enterprise data is retrieved from the determined enterprise data sources. When the enterprise data is retrieved, it is converted into a relational format that can relate the retrieved data, even if the data comes from multiple enterprise data sources. The converted enterprise data is stored in a relational data store in the mobile client. In this way, mobile applications can be fully integrated with data from multiple enterprise data sources and data updates and configuration changes can be distributed to and from the mobile clients in real-time, without using interim data storage, and thereby avoiding complicated synchronization and data conflict issues between the enterprise data sources and the mobile clients. | 01-06-2011 |
20110276608 | MOBILE DATA AND SOFTWARE UPDATE SYSTEM AND METHOD - Data is shared between multiple enterprise data sources and mobile clients in a distributed system such that requests from a mobile client for enterprise data are received, the appropriate enterprise data sources that contain the requested data are determined, and the enterprise data is retrieved from the determined enterprise data sources. When the enterprise data is retrieved, it is converted into a relational format that can relate the retrieved data, even if the data comes from multiple enterprise data sources. The converted enterprise data is stored in a relational data store in the mobile client. In this way, mobile applications can be fully integrated with data from multiple enterprise data sources and data updates and configuration changes can be distributed to and from the mobile clients in real-time, without using interim data storage, and thereby avoiding complicated synchronization and data conflict issues between the enterprise data sources and the mobile clients. | 11-10-2011 |