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WO/2009/109522A1 |
The present application relates to novel monodisperse, gel-form or macroporous picolylamine resins based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acryloyl compound which contai...
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WO/2009/109520A1 |
The present application relates to new gel-like or macroporous picolylamine resins based on at least one monovinyl aromatic compound and at least one polyvinyl aromatic compound and/or a (meth)acrylic compound containing tertiary nitrog...
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WO/2009/090774A1 |
A method and an apparatus in which an acidic waste liquid containing copper ions, such as, e.g., an etching waste liquid resulting from the etching of a copper-clad substrate with a cupric chloride etchant or a waste liquid resulting fro...
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WO/2009/090531A1 |
The industrial practice of converting copper matte comprises the oxidation of iron sulphide and subsequent oxidation of copper sulphide with the formation of copper blister, which is carried out discontinuously in Pierce-Smith or Hoboken...
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WO/2009/092023A1 |
The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning usin...
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WO/2009/087908A1 |
A method of recycling useful metals is provided. The method enables useful metals including indium, zinc, yttrium, europium, lanthanum, terbium, gadolinium, antimony, lead, copper, tin, and silver to be recovered from wastes, such as aba...
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WO/2009/083204A1 |
Suggested is 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-circuit...
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WO/2009/077851A1 |
The invention relates to a pyrometallurgical method for continuously reducing oxidised copper using combustion gases flowing counter-current to the continuous gravitational flow of liquid copper dispersed through a packed-bed reactor of ...
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WO/2009/077654A1 |
The invention relates to a suspension smelting furnace such as a flash smelting furnace, including a reaction shaft (1) that comprises a shaft structure (7), a settler (8) arranged at the lower end of the reaction shaft (1), and an uptak...
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WO/2009/077652A1 |
The invention relates to a method and arrangement for treating exhaust gases from a suspension smelting furnace (1). In the method, exhaust gases are conducted from the uptake shaft (2) of a suspension smelting furnace (1) to a waste hea...
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WO/2009/077653A1 |
The invention relates to a suspension smelting furnace (1), such as a flash smelting furnace, comprising a reaction shaft (2) comprising a burner (3). The burner (3) comprises a solid matter feed arrangement (4) for feeding solid matter ...
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WO/2009/078467A1 |
The invention aims to attain lowered S content and non-contamination with Al and thereby enable the manufacturing of a copper alloy which has excellent casting surface and internal properties and in which crystal grains are refined. A sl...
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WO/2009/077651A1 |
The invention relates to a method for refining copper concentrate. In the method, copper concentrate (1), flux (2) and reaction gas (3) are fed together into the reaction shaft (5) of a suspension smelting furnace (4), for instance to th...
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WO/2009/069782A1 |
A method of regulating the composition of a molten metal in continuous casting. The method comprises continuously measuring the resistivity of a melt of copper and of a copper alloy, calculating the composition of the molten metal from t...
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WO/2009/068735A1 |
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into...
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WO/2009/069781A1 |
A process for manufacturing a copper alloy product from a precipitation-hardening type copper alloy which comprises the step of conducting separately the melting of pure copper and the melting of an additional element or a master alloy c...
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WO/2009/059336A1 |
A method of conducting a bioleaching process including the steps of forming a main heap, culturing at least one microorganism which exhibits bioleaching activity in a predetermined temperature range, monitoring the temperature in the mai...
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WO/2009/050334A1 |
The invention relates to a method for recovering the valuable metals from sulphidic raw material containing at least copper and zinc by means of hydrometallurgical treatment. Copper sulphide and zinc sulphide are components of the raw ma...
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WO/2009/038962A1 |
The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of metals from a leached metal-bearing materia...
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WO/2009/030808A1 |
A concentrate burner for feeding a pulverous concentrate mixture and reaction gas into the reaction shaft (1) of a flash smelting furnace. The concentrate burner includes a feeder pipe (2) for feeding the concentrate mixture into the rea...
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WO/2009/030811A1 |
The invention relates to a method for the preparation of a copper concentrate suitable for pyrometallurgical treatment from a concentrate in which zinc is present as an impurity. In accordance with the method, zinc is leached from the co...
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WO/2009/029753A1 |
Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosulfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates...
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WO/2009/026694A1 |
A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the grou...
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WO/2009/019955A1 |
The object is to remove arsenic in a stable form from an arsenic-containing smelting intermediate product. Thus, disclosed is a method for treating an arsenic-containing nonferrous smelting intermediate product, which comprises: a leachi...
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WO/2009/010422A1 |
The present invention relates to a method for separating at least one hydrophobic agent from a mixture comprising said at least one hydrophobic agent and at least one hydrophilic agent, comprising the steps of: A) Producing a slurry or d...
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WO/2009/007792A1 |
A method of producing copper from a solution containing a copper (II) salt includes the steps of reducing at least some of the copper (II) salt to a copper (I) salt in a first reduction step, solubilising the copper (I) salt to produce a...
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WO/2009/004321A2 |
A settler tank for a solution used as part of a process to extract metal from metal ore, the settler tank being dimensioned such that it may be transported by a conventional truck and trailer. A settler tank for an ore extraction process...
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WO/2009/003240A1 |
A method for controlling iron precipitation from acidic ferric sulphate leach solutions in leaching of chalcopyrite and/or pyrite, the method comprising the steps of: increasing the rate of formation of a ferric basic sulphate and/or pro...
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WO/2009/000037A1 |
A process for leaching an ore containing sulphidic copper-containing minerals is disclosed. The process includes carrying out an aerated oxidising leach of a part of the ore and causing reactions with a source of iron such as pyrite in t...
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WO/2008/155451A1 |
The invention relates to a method for recovering cobalt and copper from a cobalt-containing copper concentrate in a pyrometallurgical treatment process. Blister copper is formed in a suspension smelter and/or converter, and is conveyed t...
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WO/2008/125726A1 |
A method for reducing pulverous copper (I) oxide into metallic copper in solid state by means of a reducing gas fed in a gas-tight furnace, which is equipped with an endless belt. The copper (I) oxide to be fed into the furnace is dried ...
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WO/2008/113884A1 |
The invention relates to a mixing reactor for mixing a liquid and pulverous solid, clarification the solution that is formed and discharging the clarified solution from the mixing reactor, in the lower section of which a fluidized bed is...
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WO/2008/074806A1 |
The invention relates to a method for obtaining copper from cupriferous arsenosulphide and/or antimony sulphide ores, ore concentrates, or minerals, said method comprising the following steps: the ores, ore concentrates or minerals are t...
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WO/2008/074805A1 |
The invention relates to a method for obtaining copper from cupriferous and iron-bearing ores, ore concentrates, or minerals, said method comprising the following steps: the cupriferous ores, ore concentrates or minerals are transformed ...
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WO/2008/059439A1 |
A method of treating value bearing material comprising oxidised or surface oxidised mineral values includes the steps of crushing the value bearing material, contacting the crushed material! with a sulfide solution to sulfide the oxidise...
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WO/2008/052661A1 |
This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process fo...
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WO/2008/052690A1 |
The invention relates to a method for the continuous or discontinuous extraction of a metal, or of multiple metals from a slag containing the metal, or a compound of the metal, wherein the liquefied metal containing slag is heated in a p...
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WO/2008/046114A2 |
A microbial leaching process is carried out on a heap of particulate chalcopyrite ore by adding carbon dioxide to an air stream directed into the heap at least when the heap is at mesophilic temperatures, to stimulate growth, and to achi...
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WO/2008/022986A2 |
The invention relates to a process for the recovery of metals from electronic components which comprise at least one full-area or structured metallic coating on a substrate, with the at least one full-area or structured metallic coating ...
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WO/2008/015582A2 |
The addition of a compatible metal salt crystal to the organic solution entering the mixer(s) in the solvent extraction stage(s) and/or the stripping stage(s), or to the emulsion mixture of the organic solution and the aqueous solution i...
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WO2007106709A9 |
The present invention relates to a method for electrolytic production and refining of metals having a melting point above about 1000 0C, particularly silicon, where there is provided a first electrolytic cell having an upper molten elect...
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WO/2007/143807A1 |
The invention provides a recycling step in an oxidative pressure leaching process for recovery of metals using halide ions, in which a portion of the leached solids are recycled back to the feed to the autoclave, to allow two or more pas...
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WO/2007/138345A1 |
A process for making high metal content stabilised metal nanoparticles, comprises decomposing at least one metal acetylide in the presence of a first solvent under reducing conditions to yield a metal colloid solution and then recovering...
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WO/2007/134343A2 |
A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride or mixed chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral ...
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WO/2007/134344A1 |
A tank leaching method to recover copper from a slurry of a copper sulphide mineral concentrate and an acidic or mixed chloride/sulphate solution. Leaching takes place in the presence of dissolved oxygen and the surface potential of the ...
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WO/2007/130985A1 |
The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particula...
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WO/2007/118257A2 |
Small magnetic particles are introduced into a solution which is subjected to a bioleaching process. The suspended particles are coated with a substance which has a selective affinity for, and which interacts with, a metal in the solutio...
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WO/2007/113375A1 |
The invention relates to a method for treating solids-containing process gas (7) in a suspension smelting furnace (1), comprising directing the process gas from the reaction shaft (2) of the suspension smelting furnace to a lower furnace...
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WO/2007/109822A1 |
Process for the pyrometallurgical production of copper, comprising the steps of a) charging a pyrometallurgical vessel with a copper-containing melt, b) iron blowing of the melt, an iron-containing slag being formed, c) removing the slag...
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WO/2007/109841A1 |
The present invention relates to an improved method for the recovery of metal values, in particular copper and gold, from a metal value-bearing material containing arsenic and/or antimony and a source of sulphate ions, by means of a high...
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