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Matches 351 - 400 out of 7,273

Document Document Title
WO/2012/161216A1
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/2012/156894A3
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/2012/151721A1
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/2012/149642A1
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/2012/149631A1
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/2012/149163A1
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/2012/142650A1
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/2012/142648A1
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/2012/143394A1
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/2012/140284A8
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/2012/139166A1
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/2012/140998A1
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/2012/140284A1
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/2012/138419A1
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/2012/136154A1
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/2012/137727A1
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/2012/137495A1
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/2012/131170A1
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/2012/132107A1
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/2012/135826A1
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/2012/132107A9
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/2012/130902A1
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/2012/132962A1
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/2012/126092A1
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/2012/119187A1
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/2012/119174A2
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/2012/119219A1
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/2012/119174A3
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/2012/115273A1
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/2012/114165A1
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/2012/109705A1
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/2012/111542A1
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/2012/107116A1
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/2012/106831A3
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/2012/103617A1
The present invention refers to a direct purification process of a nickel laterite leaching effluent.  
WO/2012/104246A1
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/2012/104717A1
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/2012/102265A1
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...  
WO/2012/102384A1
The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which the leaching of a valuable metal can be achieved with high efficiency, the amount of a reducing agent to be used can...  
WO/2012/100293A1
A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an acidic leach solution comprising an amount of...  
WO/2012/098459A1
A polymeric compound is provided having the general formula (A) wherein R is an alkyl chain preferably having from 1 to 6 carbon atoms in the chain which may be either saturated or unsaturated and may have substituents attached to the ch...  
WO/2012/098783A1
A method for leaching copper from a copper sulfide ore is provided in which the operation cost and the environmental burden are satisfactorily reduced. The method for leaching copper from a copper sulfide ore comprises supplying a first ...  
WO/2012/098126A3
The invention relates to the obtainment of one or more element(s) and/or element compound(s), especially rare-earth metals or compounds thereof, from intermediate products or by-products obtained during the production of titanium dioxide...  
WO/2012/093170A1
The main subject-matter of the present invention is a process for the dissolution of at least one element chosen from niobium and tantalum and at least one other element chosen from uranium and the rare earth elements, advantageously for...  
WO/2012/092234A1
This invention relates to a process that utilizes high-temperature oxidation with controlled stoichiometry in the concentration of vanadium from carbonaceous feedstock materials containing vanadium, such as residues, ashes and soots resu...  
WO/2012/091125A1
Provided are a method for collecting precious metals from a solution containing precious metal ions, an extractant or adsorbent used therefor, and a back extractant or a desorbent. Precious metals are obtained by subjecting a solution co...  
WO/2012/088212A3
The disclosure provides to a PDC element protective system including a mask configured to protect a non-leached portion of a leached polycrystalline diamond compact (PDC) element during a leaching process. The mask may be formed from or ...  
WO/2012/088212A2
The disclosure provides to a PDC element protective system including a mask configured to protect a non-leached portion of a leached polycrystalline diamond compact (PDC) element during a leaching process. The mask may be formed from or ...  
WO/2012/083583A1
Disclosed is a method for extracting tungsten from scheelite, which comprises: introducing mixed acid consisted of sulfuric acid and phosphoric acid into a decomposition reactor, heating to 70-100℃, and then adding scheelite, maintaini...  
WO/2012/080988A3
The invention is suitable for use in metal and nonmetal mining and, in general, in any area of operation containing Sb and Bi in solution in an electrolyte based mainly on sulfuric acid. The system consists in contacting: solid lead diox...  

Matches 351 - 400 out of 7,273