2 concentrator.In May 1969, MIM decided to proceed with the "Hilton mine", named in honour of Charles R. Hilton, an American who had been General Manager at the time of the discovery of the ore body that was to support it.In March 1971, the practice of returning converter slag to the reverberatory furnaces to recover the contained copper was discontinued.In 1972, MIM instituted an air quality monitoring system in Mount Isa, shutting down the smelter operations whenever the meteorological conditions were considered likely to lead the sulfur dioxide levels to exceed the USEPA standards within the city of Mount Isa.In 1973, a new copper concentrator, known as the "No. Before you visit Mount Isa Mines you must complete a visitor induction. It looks like your browser does not have JavaScript enabled. Steelcon Cava Pty Ltd Alonso Equipment Hire. In 1923 the orebody containing lead, zinc and silver was discovered by the miner John Campbell Miles. 4 concentrator" was commissioned to treat the copper ore (at a rate of six million t/y of ore containing 3% copper and 55–60% silica)With the commissioning of the new roaster, the practice of adding hot converter slag to the reverberatory furnace ceased completely.The replacement of the hearth roasters with the fluid-bed roaster meant that the amount of sulfur eliminated from the concentrate during the roasting process increased, raising the copper content ("matte grade") of the reverberatory furnace matte from 33–35% copper to 40–42% copper.The rate of ore production expanded in the years between 1953 and 1973, rising to 2.74 million tonnes in 1960, 3.65 million tonnes in the 1965–66 financial year, and plateauing for a time at 7.2 million t/y (2.6 million t/y of lead–zinc ore and 4.6 million t/y of copper ore) in 1973.The difficult nature of the Mount Isa ore bodies has meant that the company had always needed to be at the forefront of mining technology. Summit Resources (Aust) Pty Ltd.

These were both acquired by MIM by late 1925. Pybar Mining Services. The early years were characterized by the struggle to develop the lead–zinc ore bodies, including the need to finance drilling, metallurgical test work and shaft sinking, and there was significant doubt that Miles' discovery would ever amount to much.Crucial to the success of any mining venture was a rail line connecting the area to the coast. It was, in 1962, a founding sponsor of the Australian Minerals Industry Research Association ("AMIRA") P9 mineral processing research project at the In 1978, MIM's copper refining subsidiary developed the Isa Process copper refining technology,At the same time as it was developing the Isa Process tank house technology, MIM was starting the joint development, with the Australian government's Commonwealth Scientific and Industrial Research Organisation ("In 1992, MIM commissioned an ISASMELT™ furnace in the Mount Isa copper smelter to treat 104 t/h of concentrate containing 180,000 t/y of copper.In 1985, MIM commissioned Professor Graeme Jameson of the Jameson patented the idea in 1986 and a two tonne per hour ("t/h") pilot cell was tested in Mount Isa in 1986.From the mid-1980s, there was a decline in the performance of the lead–zinc concentrator because the grain size of the ore was getting progressively finer.After testing prototypes at various scales, the first full-scale IsaMill was installed in the Mount Isa lead–zinc concentrator in 1994, followed by others at Mount IsaAfter the completion of the P49 shaft at Hilton in 1975, the project there was wound down due to a decline in the world prices for lead, zinc and silver.In 1978, MIM built a new 270 m stack for its lead smelter, to reduce the effect of the AQC system on lead smelter production using the previous 76 m stack.From its inception, the copper smelter had been producing blister copper, originally for sale and then for refining at MIM's copper refinery in Townsville.

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CAREERS - We offer everything from graduate opportunities and apprenticeships to new and challenging career opportunities. First production ore from Black Rock Cave comes onlineGlencore champions reading and literacy for Indigenous youth in outback QueenslandGlencore donates $10,000 for Billabong Sanctuary's furry and feathered friends 2 concentrator had reached five million t/y, with 30% coming from Hilton and 70% from the Isa mine.In the late 1990s, production from the Mount Isa original Mount Isa ore bodies began to drop, with copper ore production from the upper ore bodies falling from five million tonnes in 1994Xstrata purchased Mount Isa Mines for a total of US$2.96 billion (A$4.93 billion), including assumed debt, in 2003.Following the take-over, Xstrata split the Mount Isa operations into two separate streams: a copper stream and a lead-zinc-silver stream.As production from the aging Mount Isa lead-zinc underground mine declined, MIM recommenced mining in the Black Star open cut, the site of some of MIM's earliest mining operations, in October 2004, aiming to maintain feed to the lead–zinc concentrator.Underground operations in the Mount Isa lead mine ceased in December 2005,On 2 May 2013, Xstrata merged with Glencore to form Mount Isa contains two separate orebodies: a stratigraphically lower lead-zinc-silver ore horizon and an upper copper ore. Please enable scripts and reload this page. 1 concentrator ceased in May 1967, with all of the lead–zinc ore subsequently being treated through the No. Mount Isa Mines Limited was one of three companies founded in 1924 to develop the minerals discovered by Miles, but production did not begin until May 1931.

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