dust capture in drying nickel pper ncentrate

2021-09-04T01:09:54+00:00
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  • dust capture in drying nickel copper concentrate

    20 oct 2013 optimum drying solution for copper concentrate py17 increase sulfur capture operational management vr parrasanchez chemical composition and dust generation of copper nickel mattes and concentrates in a vaniukov two read moreup to 10% moisture Compared with dry feed, the use of wet feed in copper smelting has disadvantages, such as increased energy consumption and offgas flow This paper describes the benefits of drying the copper concentrate, presents different drying technologies, and demonstrates the superiority of the rotary steam dryerThe Beneficial Effects of Feeding Dry Copper Concentrate Nickel refinery dust is a mixture of many nickel compounds, with nickel subsulfide being the major constituent (3,4,6) Animal studies have also reported lung tumors from inhalation exposure to nickel refinery dusts and to nickel subsulfide (3,4) EPA has classified nickel refinery dust and nickel subsulfide as Group A, human carcinogens (3,4)Nickel Compounds US EPAMonel is an alloy of nickel and copper which is not only hard but can resist corrosion by sea water, so that it is ideal for propeller shaft in boats and desalination plants Exposure to metal dust, unfortunately, is common with some occupations like mining, factory work, and weldingHow to Safely Recover Nickel Metal Dust? PrestiVac IncMar 23, 2012  Particle Size: The 80% passing size of fresh High Grade Nickel Concentrate is expected to be 50μm based on pilot plant results range from 25 90 μm) The High Grade Nickel Concentrate is expected to age and oxidize during storage thus forming agglomerates and lumpsHigh Grade Nickel Concentrate Vale

  • Nickel processing Extraction and refining Britannica

    Nickel processing Nickel processing Extraction and refining: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used The major differences in equipment are the use of highertemperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group metals from furnace or converter slags emanating from copper or nickel smelters treating sulphide concentrates Pilotplant testwork at Mintek has demonstrated recoveries of 98% for nickel and over 80% for cobalt, at power levels of up to 600 kWRecovery of cobalt, nickel, and copper from slags, using Dried copper concentrate is introduced to a smelter/converter that utilizes oxygen enrichment in the smelter/convert process The copper concentrate was previously dried in a gas suspension or fluid bed dryer by contact with nitrogen gas that was a byproduct from the oxygen plants utilized to USA1 Method for drying copper sulfide manganese, mercury, nickel, and selenium These metal compounds are contained in the copper concentrate that is the raw material for the smelter operations These metal compounds can potentially be emitted from the smelter operation in several ways Metal compounds can be emitted as fugitive dust from the handling of ore concentrate prior to40998 FACT SHEET PROPOSED AIR TOXICS REGULATION ALTA 2016 NickelCobaltCopper Proceedings 1 Copper concentrate containing high levels of impurities is not acceptable to some smelters This can render them unsaleable in some countries as in the case of Note 1: on dry basis ALTA 2016 NickelCobaltCopper Proceedings 2 IMPACT OF IMPURITIES ON TRANSPORT, TREATMENT AND PROCESSING ABSTRACT orwayau

  • Copper Concentrate Vale

    Particle size: The 80% passing size of fresh Copper Concentrate is expected to be 30µm based on pilot plant results (ranging from 15 to 50 µm) The Copper Concentrate is expected to age and oxidize during storage thus forming agglomerates and lumps Solubility in water: Insoluble Appearance in color: Odorless, grayish, slurry or moist powderRecovery of copper anode slime and crude nickel sulfate per year and produces about 30,000 t/a copper smelting dust with average content of 75% As It also produces about 8000 t/a arsenic sulfide residues (dry basis, 22% As) The recovery of the two kinds of arsenic hazardous wastes is of greatsignificance to FangyuanTreatment of Arsenic in copper smeltingThe feed to nickel sulfide smelters normally consists of a nickelcopper concentrate, which may also contain minor amounts of cobalt and platinum group metals The product from smelting these feeds isISASMELT™ TSL – MAKING A SPLASH FOR NICKELJul 18, 2019  Dry stacking involves filtering out most of the water from the tailings after mineral concentrates — copper, nickel and precious metals like platinum and gold — Twin Metals changes plan to deal with coppernickel mine wasteof produced copper and nickel metal In year 2011 the specific sulphur emission was only 15 kg per ton of produced copper and nickel metal Because of the efficient sulphur dioxide recovery the emissions from Harjavalta copper and nickel smelters are among the lowest in the world shown in Figure 7 (Mäkinen Taskinen 2006) (Boliden Harjavalta OyENVIRONMENTAL LOAD OF THE COPPER AND NICKEL

  • SUDBURY AREA RISK ASSESSMENT CHAPTER 30 HISTORICAL

    Nickel smelting began on December 22, 1888 when Canadian Copper started up a Herrshoff water jacket blast furnace to treat the calcine from the roast yard It is estimated that between 80 and 100 tonnes of calcine were treated daily The matte produced by the furnace contained about 50% copper and nickelNickelcopper converter slag 'A' 100 kVA and 200 kVA Using converter slag from a nickelcopper plant, tests were carried out, in 1990, on a 100 kVA furnace (operated at 30 kW) and on a 200 kVA furnace (operated at 85 kW), at low additions of reductant (in order to minimize the reduction of iron)Recovery of cobalt, nickel, and copper from slags, using These processes have been tested with dust containing leadzinc, copper matte or concentrate, copper con verter slag, lead concentrate, and nickel concentrate Figure 11 shows a TBRC, which is claimed to increase opera tional flexibility through control of both temperature and turbulence and maintain high thermal efficiencyOverview of foreign nonferrous smelter technologySome Observations 2014 •Source: ICSG, Copper Bulletin 2015 8 •South America is the most important copper mining region •More than 35% of world copper concentrate originated in South America •But only 13% of world copper concentrate was smelted in South America •Chile is the world’s largest copper mine producer •China is the world’s largest smelting countryDEVELOPMENTS IN COPPER SMELTING AND REFININGBulk material Loading Dust free loading Concentrates Copper concentrate Containerized concentrate Nickel concentrate Lead concentrate Iron Ore Mineral sands Revolver Rotainer Rotobox Rotorcon Reach Stacker Revolving spreaders ISG Bulk container Maxitainer Lid liftor Lid gripper Tippler Half height containers Pit to ship solutions Concentrate Bulk material Loading Dust free loading Concentrates

  • (PDF) COPPER PRODUCTION WITH OUTOKUMPU FLASH SMELTING

    The copper concentrate capacity was only 8 tph corresponding to about 12 320 tpa blister copper The original dimensions of the reaction shaft were h=87 m * I = 28 m During the first yearsf Before entering a confined space where Nickel powder or Raney Nickel may be present, check to make sure that an explosive concentration does not exist f Use a vacuum to reduce dust during cleanup DO NOT DRY SWEEP f Use a high efficiency particulate air (HEPA) filter when vacuuming Do not use a standard shop vacuum Personal Protective Right to Know Hazardous Substance Fact SheetALTA 2016 NickelCobaltCopper Proceedings 1 Copper concentrate containing high levels of impurities is not acceptable to some smelters This can render them unsaleable in some countries as in the case of Note 1: on dry basis ALTA 2016 NickelCobaltCopper Proceedings 2 IMPACT OF IMPURITIES ON TRANSPORT, TREATMENT AND PROCESSING ABSTRACT orwayauf Before entering a confined space where Nickel powder or Raney Nickel may be present, check to make sure that an explosive concentration does not exist f Use a vacuum to reduce dust during cleanup DO NOT DRY SWEEP f Use a high efficiency particulate air (HEPA) filter when vacuuming Do not use a standard shop vacuum Personal Protective Right to Know Hazardous Substance Fact SheetUse dry sand, MetLX powder, or G1 graphite powder Contact professional firefighters immediately Use dry sand, graphite powder, dry sodium chloridebased extinguishers Dousing metallic fires with water may generate hydrogen gas, an extremely dangerous explosion hazard, particularly if fire is in a confined environment Autoignition Material Safety Data Sheet West Liberty University

  • Overview of foreign nonferrous smelter technology

    These processes have been tested with dust containing leadzinc, copper matte or concentrate, copper con verter slag, lead concentrate, and nickel concentrate Figure 11 shows a TBRC, which is claimed to increase opera tional flexibility through control of both temperature and turbulence and maintain high thermal efficiencyConcentrate injection tuyeres5: 6: Feed, tonnes/day (dry basis) Dry concentrate through tuyeres2100: 2200–2500 %Cu in dry concentrate26–28: 30–33 Quartz flux160–220: 150–200 %SiO 2 in flux: 945–984: 90 Other264–300 solid reverts 0–75 molten slags: 400–600 solid reverts 0–50 Teniente or flash furnace dust: Tuyere blast detailsSmelting an overview ScienceDirect TopicsCopper powder may be present, check to make sure that an explosive concentration does not exist Use a vacuum or a wet method to reduce dust during cleanup DO NOT DRY SWEEP Personal Protective Equipment The OSHA Personal Protective Equipment Standard (29 CFRRight to Know Hazardous Substance Fact SheetWG Davenport, in Encyclopedia of Materials: Science and Technology, 2001 4 The Future The major trend in copper smelting and converting is towards improved capture of the SO 2 that is evolved from oxidizing CuFeS 2 and other copper sulfide minerals Improved SO 2 capture benefits the environment and the resulting H 2 SO 4 product can be used for leaching “oxide” and supergene sulfide Copper Smelting an overview ScienceDirect TopicsNickel smelting began on December 22, 1888 when Canadian Copper started up a Herrshoff water jacket blast furnace to treat the calcine from the roast yard It is estimated that between 80 and 100 tonnes of calcine were treated daily The matte produced by the furnace contained about 50% copper and nickelSUDBURY AREA RISK ASSESSMENT CHAPTER 30 HISTORICAL

  • The Story of Voisey's Bay: Today's Mine (Part 3 of 3)

    Dec 16, 2015  The Umiak I can carry 30,000 tonnes of nickelcopper concentrate at once (worth $100 million per load) The Future The Newfoundland and Labrador government estimated that the Voisey’s Bay project will add approximately $207 billion to the province’s gross domestic product during the mine’s estimated 30year lifespanThe copper sulphide concentrate feed is smelted with flux to form matte in the reverb furnace The molten matte is tapped and poured into PierceSmith converters into which air and oxygen are injected to reduce the copper to 99% pure blister copperCOPPER DIVISION: Gasp Smelter Canadian Mining Nickelcopper converter slag 'A' 100 kVA and 200 kVA Using converter slag from a nickelcopper plant, tests were carried out, in 1990, on a 100 kVA furnace (operated at 30 kW) and on a 200 kVA furnace (operated at 85 kW), at low additions of reductant (in order to minimize the reduction of iron)Recovery of cobalt, nickel, and copper from slags, using CONCENTRATE (ZINC/PYRITE) CALCINE (ZINC/PYRITE) Fe 8/46% 89/61% S 32/48% 03/03% Zn 52/02% 59/03% Pb 18/01% 2/01% Water Steam Calcine cooling and handling Concentrate feeding system Heat recovery system Dust separation Fluidized bed roaster SO 2 offgas Calcine Feed Air FEATURES • Direct dry feeding of the concentrate (moisture content OUTOTEC ROASTING SOLUTIONSDrying and smelting in electrical furnace Air/O 2 Base Metal Refiningblown Converters Sulphur Removal •Nickel •Copper •Cobalt Sulphate •Sodium Sulphate •Nickel sulphate Base Metal Refining (incl Magnetic Concentration for some players) Precious Metal Refining •PGMs •Gold Incorporating PGMs into various end applicationsOVERVIEW OF PGM PROCESSING Anglo American Platinum

  • Copper Mining and Processing: Everything you Need to Know

    The Basics of Copper Mining and Processing Mined from open pits, copper ore must be crushed as part of the process that occurs between extraction and production Using today’s compact mining equipment, copper ore is extracted from the mine After the ore is crushed, it’s roasted, which helps to convert sulfides to oxides