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Matches 201 - 250 out of 3,911

Document Document Title
WO/2012/177134
The invention is directed to a pertraction process for lowering the concentration of one or more target compounds in a feed solution. The process of the invention comprises - flowing on a first side of one or more hollow fibre membranes ...  
WO/2012/174349
The present disclosure is directed to a process for recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from the loaded resin using an eluant comprising trithionate. The barre...  
WO/2012/171481
A hydrometallurgical process for complete and comprehensive recovery with substantially no solid, liquid or gaseous waste and with zero emissions, characterized by the use of a strong leaching agent, such as a high acid oxidation or comp...  
WO/2012/172512
A method for leaching of minerals and sequestration of CO2 is disclosed, wherein the method comprises forming a rock pile; injecting exhaust gas containing CO2 in the lower part of the rock pile; spraying leaching liquid on top of the ro...  
WO/2012/171480
A hydrometallurgical method for lateritic nickel ore comprises leaching the raw material by means of a strong acid in high-pressure pipelines to improve the leaching rate of various valuable components in the raw material; adding a compl...  
WO/2012/168091
To achieve high efficiency in regeneration of waste fluid from metal plating electrolytes for example, a device and a method for recovering a recovering material from a recovering fluid containing the recovering material are provided, wh...  
WO/2012/168915
The present invention relates to a method for the selective separation and recovery of metal solutes from an acidic aqueous solution by solvent extraction techniques. The present invention further relates to the selective separation and ...  
WO/2012/162851
The invention relates to a process for producing a chemical reagent that is soluble in neutral waters, acid waters and in process solutions, in order to aid and improve the oxidation and leaching of copper sulfides. The process comprises...  
WO/2012/166104
A process for recovering Li-ions can include: providing a composition having Li-ions to be extracted therefrom; removing materials from the Li-ions; introducing one or more cyclic siloxane to the Li-ions so as to form one or more cyclic ...  
WO/2012/162817
There are provided methods for preparing hematite. For example, the method can comprise reacting a basic aqueous composition comprising the iron and the aluminum with hematite under conditions suitable for at least partially converting t...  
WO/2012/163200
Disclosed in the present invention is a method for separating rare earth from phosphorus ore, which belongs to the field of separating rare earth from the phosphorus ore containing rare earth. The method comprises: (1) mixing and reactin...  
WO/2012/162509
Disclosed herein are systems and methods for recovering a target material from an aqueous stream. The target material can be a natively hydrophobic target material, such as a hydrocarbon material, such as coal. The target material can al...  
WO/2012/161216
The present invention provides a complex which is produced by reductive bacteria during the culturing process and consists of a culture medium component and a metal-reduction product, and also provides uses thereof. The complex according...  
WO/2012/156894
The invention discloses a metal extraction process and arrangement therefore which includes a microfiltration plant for removing suspended solids from a pregnant leach solution including a metal to form a first retentate including the so...  
WO/2012/151721
A wet process for pre-treating carbonaceous refractory gold concentrate ores comprises the following steps: grinding the gold concentrate ores to a granularity of -0.074 mm with a mass content of 90-100% by ore mill, then adjusting the s...  
WO/2012/149642
The present disclosure relates to processes for recovering rare earth elements from various materials. The processes can comprise leaching the at least one material with at least one acid so as to obtain a leachate comprising at least on...  
WO/2012/149631
The present invention relates to methods for recovering precious metals including silver and gold, rare metals including indium and gallium, base metals including copper, lead and zinc or a combination of precious, rare and base metals f...  
WO/2012/149163
Sieve systems useful for selectively extracting lithium from brines are provided along with processes for making and using the sieve systems, wherein the sieve systems comprise a plurality of supported, activated manganese and/or cobalt-...  
WO/2012/142650
A phase splitter (14) for splitting phases of liquids, the phase splitter (14) characterised by an elongate body (16) having a generally convexly curved liquid-facing face (28) when viewed in transverse cross-section along a longitudinal...  
WO/2012/142648
A distribution array (10) for use in a settler area (12) of a mixer-settler, the distribution array (10) characterised by: at least one panel (26, 28) of linearly-spaced barrier elements (30), wherein the depth of the barrier elements (3...  
WO/2012/143394
The present invention relates to a method of removing impurities, especially thallium from an aqueous solution from an industrial process, using a chelating agent, especially an aminophosphonic or an iminodiacetic chelating resin. Accord...  
WO/2012/140284
The invention relates to a method wherein the zinc concentrate is subjected to the following steps: a. roasting at least one part of the zinc concentrate; b. neutral leaching, wherein the zinc oxide is dissolved; c. acid leaching, wherei...  
WO/2012/139166
A leach process (70) comprising the following steps: i) Passing a metal containing waste material (72) from a mineral processing operation (96) to a biological leach step (74) in which a proportion of the metal is extracted into a pregna...  
WO/2012/140998
The purpose of the present invention is to provide a method for recovering a heavy rare earth element, which enables the recovery of a heavy rare earth element with high efficiency and at a high recovery rate. In the present invention, a...  
WO/2012/140284
The invention relates to a method wherein the zinc concentrate is subjected to the following steps: a. roasting at least one part of the zinc concentrate; b. neutral leaching, wherein the zinc oxide is dissolved; c. acid leaching, wherei...  
WO/2012/138419
Methods to produce sub-micron or nano-sized MOF crystals having narrow size distribution that are very important for gas separation applications. Crystal size is suppressed with low temperature and/or sonication or by keeping the metal l...  
WO/2012/136154
A heater and a heating method for a wet extraction tank, said heater comprising a heating tube (2) and the heating tube (2) comprising a spiral glass tube; the two ends of the heating tube (2) are provided with an air inlet (3) and an ai...  
WO/2012/137727
The purpose of the present invention is to provide a method whereby rare earth elements can be separated and recovered at a higher yield than by conventional techniques. The method for separating and recovering rare earth elements, where...  
WO/2012/137495
Provided is a method for recovering rare earth metals which enables rare earth metals to be selectively recovered in an easy and reliable manner from tin slag containing rare earth metals, radioactive substances, iron, aluminum, and the ...  
WO/2012/131170
The invention relates to a method for collecting metals from a solution, in which method solid insoluble or sparingly soluble bisphoshonate of formula (I) is mixed with the solution, whereby metals possibly present in the solution react ...  
WO/2012/132107
Provided is a processing method for recovering a highly pure niobium starting material from glass scraps containing niobium and boron. The method for isolating/purifying niobium has: a first step for extracting niobium into an organic so...  
WO/2012/135826
A system [100'] and process [100] for the continuous recovery of metals is disclosed. The system [100'] comprises a continuous acid wash system [10'], a holding tank [60], a continuous elution system [20'], a continuous electrowinning sy...  
WO/2012/132107
Provided is a processing method for recovering a highly pure niobium starting material from glass scraps containing niobium and boron. The method for isolating/purifying niobium has: a first step for extracting niobium into an organic so...  
WO/2012/130902
The invention relates to novel compounds which are useful as actinide ligands and which have the following general formula (I). The invention further relates to a method for synthesizing said compounds as well as to the uses thereof.  
WO/2012/132962
A tantalum recovery method which with which it is possible to recover tantalum from waste containing relatively large quantities of copper and tungsten, such as discarded boards, including printed circuit boards in particular. Therein, m...  
WO/2012/126092
The present disclosure relates to processes for recovering rare earth elements from an aluminum-bearing material. The processes can comprise leaching the aluminum-bearing material with an acid so as to obtain a leachate comprising at lea...  
WO/2012/119187
A process for recovery of one or more base metal values from a laterite ore is disclosed The laterite ore may comprise limonite and/or saprolite, and the process has the steps of contacting the laterite ore with an organic acid to form a...  
WO/2012/119174
The invention relates to a metal separation method, comprising the following steps: introducing the metal to be separated together with a liquid into a reactor; adding process gas that reacts with the metal to be separated and blending s...  
WO/2012/119219
A method and apparatus for treating waste materials comprising, particulating the waste materials into discrete particles, heating and drying the particles in a non- oxidizing atmosphere in a drier at a temperature in the range of 800° ...  
WO/2012/119174
The invention relates to a metal separation method, comprising the following steps: introducing the metal to be separated together with a liquid into a reactor; adding process gas that reacts with the metal to be separated and blending s...  
WO/2012/115273
Problem : To provide a material and a method for efficient and inexpensive extraction of rare metals that are included in urban minerals. Solution : A method for the extraction of lanthanoid elements and actinoid elements, said method co...  
WO/2012/114165
This invention relates to an energy efficient process for recovering Base Metals and Precious Metals from ore or concentrate, the process including the steps of constructing a heap (10) comprising ore and/or concentrate containing Base M...  
WO/2012/109705
The invention discloses a method for recovering uranium from an acidic leach solution or leach pulp in salt water using an amino-phosphorus resin, wherein the liquid phase of the leach solution or leach pulp contains greater than 3 g/L c...  
WO/2012/111542
According to the present invention, it becomes possible to collect ruthenium or a ruthenium compound, which is expensive, with high efficiency even from an aqueous solution containing a water-soluble salt, a lower alcohol, an organic aci...  
WO/2012/107116
A method for removing copper sulphide (Cu2S) deposited onto electrically insulating materials of components in an electrical apparatus,such as a transformer or a bushing, wherein normally present electrically insulating oil has been subs...  
WO/2012/106831
The invention relates to a copper mineral leaching method, known as solar heap leaching (SHL), providing faster recovery and increased yield, in which: a) the heap of minerals is watered with hot leaching solutions; b) the heap is covere...  
WO/2012/103617
The present invention refers to a direct purification process of a nickel laterite leaching effluent.  
WO/2012/104246
The invention relates to a process for recovering at least one platinoid element contained in an acidic aqueous solution comprising chemical elements other than said platinoid element, said process comprising the following steps: - a ste...  
WO/2012/104717
A method and apparatus are provided for conducting a microbiological process on a bulk material in which a quantity of the bulk material is loaded onto a waterproof lining forming part of a bio cell with a heat transfer arrangement below...  
WO/2012/102265
Provided is a process for producing an ore slurry which has low yield stress to an extent that the ore slurry can be transferred even when the concentration of the ore slurry is high and which does not undergo any problem associated with...  

Matches 201 - 250 out of 3,911