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JP2006316333A |
To provide a zinc-containing dust pellet in which zinc can be efficiently discharged from zinc-containing dust while preventing the explosion of the pellet and the formation of kiln rings, and the content of metal iron in slag can be inc...
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JP3845355B2 |
To provide a recycling method by which smoke dust is utilized as the raw material for iron making without subjecting the same to reclaiming treatment, and the economically treatable smoke dust is used as the raw material for iron making....
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JP3844752B2 |
To regenerate an amine used to solvent extraction for recovery of metals without using caustic reagents and complicated filtering steps. A liquid organic phase containing an amine complexed with one or more metals is brought into contact...
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JP2006307268A |
To provide a method for collecting dust containing little halogen element when slag-fuming a slag produced in a smelting furnace for smelting zinc and/or lead.When collecting the dust containing zinc and lead from a fumed gas which has b...
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JP3844028B2 |
To reduce the size of equipment, to enhance thermal efficient and to efficiently recover valuable metals by pelletizing blast furnace system and converter system dust or surface treating system sludge together with carbonaceous substance...
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JP3843052B2 |
To efficiently and stably treat waste water containing metal to separate and recover valuable metal from the waste water containing metal and to reduce the occurring amount of sludge. In the recovering method for valuable metal in the wa...
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JP3842907B2 |
To purify metal-contg. waste water and to recover valuable metals simultaneously when the waste water is treated and to remarkably reduce the generation of sludge. The pH of metal-contg. waste water is adjusted by an alkali agent to form...
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JP3838713B2 |
To provide a method and device for directly producing high-purity zinc of ≥99.9999wt.% purity (6N) in the form of an ingot by developing a new refining means by which the iron, silver, lead, etc., which have been difficult to separate ...
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JP2006274397A |
To provide a method for efficiently removing the cobalt included as an impurity in a zinc concentrate decoction used in a zinc electrowinning method.The purification method comprises adding an arsenious acid together with zinc dust to th...
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JP3828461B2 |
To provide a method for treating domestic waste or a waste dry cell and a method for efficiently reproducing as raw materials the valuable metals to be generated when the domestic waste or the waste dry cell is treated. This waste treati...
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JP2006255494A |
To provide a treatment method for flying ash capable of being easily utilized at low cost in industry, realizing volume-reduction in the safe and stable state and recycling of molten flying ash and suppressing elution of heavy metals int...
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JP3825603B2 |
To provide a method for concentrating zinc in steelmaking dust by which steelmaking dust easily recyclable into a zinc primary refining process having a high content of the zinc element can be obtained efficiently from zinc-containing sc...
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JP3823478B2 |
To improve the permeability of ore layer in a sintering machine and to stably and efficiently produce the good quality sintered block by classifying returned powder into small diameter grain group and large diameter grain group, granulat...
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JP3816217B2 |
To provide a method for efficiently, stably and economically separating copper, silver-lead and silica contained in the zinc leaching residue in wet zinc refining. When the zinc leaching residue is secondarily leached by the use of sulfu...
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JP3809558B2 |
To reduce the speed of the diminishing of an aluminum cathode plate and to provide a cathode plate with long service life by providing a composition which consists of specific amounts of Ti and the balance Al with inevitable impurities a...
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JP3804323B2 |
To provide a method for volatizing and recovering a zinc at high volatizing ratio from iron dust produced in a blast furnace, electric furnace, etc., in an iron and steel industry by using a reduction-roasting rotary furnace provided wit...
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JP3802046B1 |
To provide a treatment method of obtaining a solid content of zinc and lead of little moisture content from heavy metal-containing powder such as fly ash containing calcium, lead, zinc, copper, and a chlorine content. The method comprise...
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JP3800593B2 |
To provide a method for recovering collected shot-blast zinc dust which is conventionally discarded for landfill. The method for recovering the collected shot-blast zinc dust comprises a separation step of separating the collected shot-b...
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JP3799872B2 |
To provide a setting method of a tuyere, with which the perfect separation and high smelting capacity can be obtd., in the case of separating and recovering zinc and iron from an electric furnace dust. In the case of charging raw materia...
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JP2006176857A |
To provide a slag fuming method where in which, from slag produced from a refining furnace for zinc and/or lead refining, zinc and lead are volatilized and separated, fume comprising zinc and lead and having the low contents of arsenic a...
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JP2006176858A |
To provide a slag fuming method where, from slag produced from a refining furnace for zinc and/or lead refining, dust comprising zinc and lead and having the low contents of arsenic and antimony, and slag capable of stably satisfying soi...
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JP3794260B2 |
To provide a treatment method which is capable of rapidly and efficiently filtering out zinc in liquid. The method is to subject wastes to the separation of solid from liquid by acid leaching and recovering the zinc from the filtrate, in...
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JP2006159181A |
To provide a new metal super-accumulation plant, and, further, to provide a low-cost method for removing and recovering heavy metals in soil where the ratio of removing and recovering heavy metals in soil is improved.Heavy metals in soil...
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JP2006152382A |
To avoid reduction in zinc leaching rate and to continue smooth leaching operation by preventing, in a leaching tank for the direct sulfuric acid leaching of zinc concentrate, the short pass of air bubbles due to a flotation reagent adhe...
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JP2006131962A |
To provide a method for volatilize-separating or wash-separating lead, zinc and copper contained in molten flying ash by heating pellet of the molten flying ash.The molten flying ash is granulated to make the pellet of the molten flying ...
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JP3773467B2 |
To provide a treatment method by which a heavy metal compound utilizable as a nonferrous refining raw material and a calcium compound containing no heavy metals such as zinc and utilizable as a cement raw material can fractionally be rec...
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JP3766908B2 |
To provide a method of treating wastes which can separate and recover zinc and lead, reduces the amount of an acid used and makes a final solid content usable as cement raw material. This treating method for the wastes has a process step...
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JP3769201B2 |
To provide a method for separating zinc from a halogen-base liquid containing copper and the zinc. In the method for separating zinc, the copper and the zinc are separated to obtain the zinc by a method for performing solvent extraction ...
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JP3764659B2 |
To provide a recycling method capable of converting wastes into high value-added recycled products by using a cheaper facility and contributing to zero emission by using the recycled products obtained by recycling for an appropriate usag...
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JP2006511704A |
The invention relates to a method and a plant for the heat treatment of sulfidic ores, in which solids are heated to a temperature of approximately 450 to 1500° C. in a fluidized bed reactor ( 1 ). In order to improve the energy utiliza...
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JP3762047B2 |
To provide the method for collecting cadmium and zinc of high purity which arc small in quantity of arsenic, copper; lead, thallium, etc., from the smelted dust containing valuables such as cadmium and zinc. A collecting method comprises...
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JP3760261B2 |
To provide a method capable of separating and recovering various heavy metals from incineration fly ash or molten fly ash. The heavy metals such as copper, cadmium, zinc or the like are extracted from the fly ash by adjusting slurry of t...
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JP2006075821A |
To provide a method for removing and recovering a heavy metal in soil by phytoremediation which enhances a removal and recovery ratio of the heavy metal in the soil, and is also at a low cost and easily in a plant carrying out hyperaccum...
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JP2006057156A |
To provide a slag fuming process by which dust containing zinc and lead having low contents of arsenic and antimony and also slag capable of stably satisfying soil environmental standards can be obtained from slag produced from a smeltin...
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JP2006035156A |
To provide a method and equipment for treating ashes, by each of which iron or aluminum can be made to remain in ash as much as possible and useful metals such as copper, lead, zinc and cadmium can be extracted selectively at a low cost....
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JP3737623B2 |
To miniaturize a recovering equipment, the whole device and an equipment space, to facilitate the transportation of a recovered material, the removal of sulfur dioxide from a waste gas and the purification of the waste gas, to simplify a...
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JP2006009136A |
To make waste plastics containing vinyl chloride resin such as ASR (Automobile Shredder Residue) into a heat source and a chlorine source without sorting, dry distillation or dechlorination process and to make lead contained in zinc-cont...
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JP3733452B2 |
To provide a method for treating waste by which heavy metals are efficiently removed from the waste and a solid matter after treatment is used as a raw material for cement. This method for treating the waste is operated through a treatme...
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JP3733362B2 |
To improve the recovery rate of solder from a dross lump produced at the time of soldering operation. A dross lump 2 produced at the time of soldering operation is recovered, and is heated by a heating furnace 1. After the fusion of sold...
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JP3730997B1 |
To provide a recycling treatment method for molten flying ash where metallic components are recovered as refining raw materials comprising them at the concentration utilizable for the refining of these metals from molten flying ash, and ...
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JP2005345005A |
To provide an electric furnace dust processing device, with improved sealing performance, and a method for processing electric furnace capable of maintaining electric furnace dust at prescribed high temperature, and recovering metal zinc...
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JP3727232B2 |
To provide a method for zinc recovery by which zinc metal as a valuable metal can be directly recovered from a zinc-oxide-containing matter (a zinc-oxide-containing raw material) such as zinc-oxide-containing dust generated in a scrap ir...
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JP3726107B2 |
To miniaturize a recovering equipment, the whole device and an equipment space, to facilitate the transportation of a recovered material, the removal of sulfur dioxide from a waste gas and the purification of the waste gas, to simplify a...
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JP3723521B2 |
To provide a method for producing a reduced iron with which the collapse and the powdering of a pellet in the heating furnace is produced and the product reduced iron having high dezincificating rate and high metallizing rate can be prod...
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JP3713579B2 |
PCT No. PCT/EP94/02794 Sec. 371 Date Apr. 24, 1996 Sec. 102(e) Date Apr. 24, 1996 PCT Filed Aug. 24, 1994 PCT Pub. No. WO95/06140 PCT Pub. Date Mar. 2, 1995A portion of the concentrates is roasted and a portion of the resulting calcine i...
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JP2005298949A |
To highly remove zinc from a zinc-containing solution, and to efficiently recover the same.The method comprises: an adsorption stage where a zinc-containing solution is brought into contact with a chelate resin, and zinc is adsorbed on t...
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JP2005279637A |
To provide a method for removing and recovering heavy metals in soil by phytoremediation having an improved removal and recovery ratio of the heavy metals in soil by choosing a plant which highly absorbs the heavy metals and has high har...
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JP3705815B2 |
PCT No. PCT/AU96/00157 Sec. 371 Date Jan. 6, 1998 Sec. 102(e) Date Jan. 6, 1998 PCT Filed Mar. 22, 1996 PCT Pub. No. WO96/29439 PCT Pub. Date Sep. 26, 1996A method is provided for processing a sulphide mineral composition which at least ...
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JP2005238181A |
To recover a valuable metal from wastewater containing heavy metals simultaneously treating the wastewater efficiently and stably to reduce the production amount of waste sludge.In the case of the treatment of metal containing wastewater...
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JP2005526909A |
A process for the extraction of a base metal such as Ni, Co or Zn, from suiphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of oxy...
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