In 1903-07 Potter fought a legal battle in the Supreme Court of Victoria against Guillaume Delprat, general manager of Broken Hill Proprietary Co. Ltd, who discovered a similar process in 1902. Although B.H.P. won eventually on the grounds that Potter's process lacked utility, it soon adopted his use of sulphuric acid and the method of recovery ...
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Jan 28, 2013· Froth flotation process: The process of separating minerals from rock by flotation was developed by Charles Potter and Guillaume Delprat of New South Wales. In 1905 Anthony Mitchell invented the tilt-pad thrust bearing which revolutionised thrust technology, whatever any of that means.
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Delprat spent many years in Broken Hill and was naturalised in 1904. A method for separating ore from rock crushings using bubbles to float the ore to the surface was developed by Charles Potter and Guillaume Delprat in the early 1900s. It became known as the Potter-Delprat flotation process.
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Sep 01, 2016· She uses neither potter's wheel nor moulds, building her colourful work slowly, layer by layer. Aaltonen's conceptual minimalism is complemented with a selection of work by Finnish artist Pekka Paikkari, who has a strong interest in the history of pottery, and brings out its importance as a marker of human civilization and a container of time.
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The first commercially successful froth flotation process for sulfide minerals was the Potter-Delprat Process, which was first used (and not used much elsewhere because better processes. Page 90 Share Cite. Suggested Citation:"3 Availability and Reliability of Supply." National Research Council.
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The development of the original Potter–Delprat process, the introduction of oils to generate froth flotation and the achievement of selective flotation processing are described, all focussed on solving challenges with the Broken Hill Pb–Ag–Zn ores. Some recent initiatives in flotation at BHP Billiton operations are also outlined, covering ...
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The Potter - Delprat process, as it was referred to after 1907, proved unsuccessful on a large scale. In 1905, Minerals Separation Ltd improved the process in two ways. Firstly, by the addition of a small quantity of oil to the pulp and secondly by producing violent aeration via the mechanical agitation of …
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mineral ores by Melbourne based chemist Charles Potter and Broken Hill engineer Guillaume Delprat expanded the life of the mining operation and enabled the recovery of lead and zinc from existing mine tailings. By 1915 the new process had resulted in 5.7 million tonnes of tailings dumping being processed at Broken Hill and zinc recovered
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Helen Potter is on Facebook. Join Facebook to connect with Helen Potter and others you may know. Facebook gives people the power to share and makes the...
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Apr 13, 2021· Working with Potter, Delprat had observed in the laboratory that they could make the zinc sulphide in the tailings dumps attach to gas bubbles and float, thereby effecting a separation. A large scale processing plant was quickly built to put this research into practice and the process worked.
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Inspired partly by brewing techniques, the Potter-Delprat Process is developed by BHP to extract huge tonnages of zinc that were not previously commercially viable. Modern versions of this flotation process are used around the world to extract a wide variety of minerals. Its invention – really a chain of innovations – is a high point in the ...
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History. William Haynes in 1869 patented a process for separating sulfide and gangue minerals using oil and called it bulk-oil flotation.The modern froth flotation process was invented in 1901 by C.V Potter in Australia and in 1902 by G.D Delprat in Holland.In the early times, only naturally occurring chemicals such as fatty acids and oils were used as flotation reagents in a large quantity.
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Feb 11, 2016· Litigation ensued, followed by a compromise, eliminating Potter. In later patents both Potter and Delprat introduced the use of oil, finding it beneficial. In his first American patent, No. 735,071, filed on January 2, 1903, Delprat states that the process "depends upon the ore particles being attacked by the acid to form a gas.
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May 01, 2006· The development of the original Potter–Delprat process, the introduction of oils to generate froth flotation and the achievement of selective flotation processing are described, all focussed on solving challenges with the Broken Hill Pb–Ag–Zn ores. Some recent initiatives in flotation at BHP Billiton operations are also outlined, covering ...
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Three practical men, Charles Vincent Potter, G. D. Delprat and Auguste de Bavay are generally given credit for the main inventive steps in what is probably Australia's greatest contribution to world technology, the Broken Hill flotation process. It may be a little far-fetched to claim two brewers. Potter and de Bavay, as industrial chemists.
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Colette Sparks is on Facebook. Join Facebook to connect with Colette Sparks and others you may know. Facebook gives people the power to share and makes...
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Alexandre Desplat, né le 23 août 1961 à Paris, est un compositeur français de musique de film.. Composant pour des films et téléfilms français depuis 1985, il se fait remarquer à l'international en 2003 avec la bande originale de La Jeune Fille à la perle.Il est alors de plus en plus demandé à l'étranger, notamment par le cinéma américain, et se met à travailler pour de grands ...
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Hill adopted Potter's process and between 1903 and 1905 extracted increased quantities of zinc. However, around 1902, Potter discovered that Guillaume Delprat, general manager of the BHP mine at Broken Hill, had obtained patents for a very sim-ilar process and this led Potter to sue BHP for infringement of both his Vic-
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May 24, 2014· Potter S, Truett M, Philips M, Maher A. Eukaryotic transposable genetic elements with inverted terminal repeats. Cell. 1980; 20:639–647. [Google Scholar] Potter SS. DNA sequence of a foldback transposable element in Drosophila. Nature. 1982; 297:201–204. [Google Scholar] Rius N, Delprat A, Ruiz A.
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Nov 26, 2015· Japanese artist Yoshiro Kimura is known for pottery glazed with deep hues of blue that remind of his love for the Mediterranean Sea. On his ceramics, acquamarine glaze called hekiyu shifts from nearly transparent shallow water blue to tones of dark sapphire blue. The artist also creates an effect of waves on ceramics by using a rippling decorative technique called renmon.
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The modern froth flotation process was independently invented the early 1900s in Australia by C.V Potter and around the same time by G. D. Delprat. Copper sulfide loaded air bubbles on a Jameson Cell at the flotation plant of the Prominent Hill mine in South Australia.
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Delprat was an engineer, metallurgist and pioneer industrialist, with a leading role in BHP. His achievements included a method for separating ore from rock crushings using bubbles to float the ore to the surface developed with Charles Potter in the early 1900s. It became known as the Potter-Delprat flotation process.
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Mar 27, 2016· Potter-Delprat Process: Sulphides and carbonates, with or without other gangue minerals, are treated with hot, dilute sulphuric acid. Bubbles of carbon dioxide and hydrogen sulphide are formed which rise to the surface with a sulphide coating and there form a froth. That part of the gangue not dissolved remains immersed.
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The modern froth flotation process was independently invented the early 1900s in Australia by C.V Potter and around the same time by G. D. Delprat. [7] Copper sulfide loaded air bubbles on a Jameson Cell at the flotation plant of the Prominent Hillmine in South Australia
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De Bavay turned his attention to the technological problems of mining at Broken Hill, especially the difficulties of ore extraction. In his search for a new method to recover zinc blende, he became involved in the bitter struggle between C. V. Potter and G. Delprat but by July 1904 he had evolved his own
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Charles Potter, a brewer, and Guillaume Delprat of BHP had the idea in 1903 to purify liquids using flotation, for mineral waste. Flame Ionization Detector This measures emissions to one part in 19 million and was invented in 1957 by Ian McWilliam.
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Delprat played an important part in the perfecting of a technique that came to be known as the [C.V.] Potter-Delprat flotation process; it revolutionized sulphide ore treatment and brought enormous profits from the metal content of millions of tons [tonnes] of formerly useless tailings. He received from B.H.P. £1000 for his patents and from ...
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Flotation Process - the froth flotation process used in the separation of minerals from rocks was developed during 1901-1903 by Charles Potter and Guillaume Delprat of New South Wales. Thrust Bearing - the tilt-pad thrust bearing was invented by Anthony Mitchell in 1905. It is regarded as probably the single most important invention in the ...
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Jul 27, 2015· Flotation 1. Perth Brisbane Melbourne Noosa L 6, 524 Hay St Perth WA 6000 P: (+61 8) 9421 9000 PO Box 5778 St Georges Tce WA 6831 U 4,14 Merivale St South Brisbane QLD 4101 P: (+61 7) 3029 6220 117 Miller St Thornbury VIC 3071 P: (+61 3) 9495 2666 ABN 66 009 357 171 E: [email protected] W: Presented by Peter Steckis Consulting …
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Mar 28, 2016· Potter-Delprat process. No special apparatus is needed for a test of this process. A funnel with preferably about 30 degrees apex angle and 300 or 400 cc. capacity is sufficient. This is connected by means of rubber tubing with an acidproof reservoir set so as to have a head of 4 or 5 ft. on the point of discharge into the funnel.
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In 1902, Froment combined oil and gaseous flotation using a modification of the Potter-Delprat process. During the first decade of the twentieth century, Broken Hill became the center of innovation leading to the perfection of the froth flotation process by many technologists there borrowing from each other and building on these first successes.
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Potter was unsuccessful in court but the method is now known as the Potter-Delprat process. Further research showed that a number of different chemicals, including eucalyptus oil, could be added to the bath to separate different metals from the waste. The process is still being developed and improved upon.
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Working with Potter, Delprat had observed in the laboratory that they could make the zinc sulphide in the tailings dumps attach to gas bubbles and float, thereby effecting a separation. A large scale processing plant was quickly built to put this research into practice and the process worked.
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Mar 21, 2016· These tests were carefully made, but the best work done in the laboratory was not equal to that being secured on a commercial scale in the existing magnetic plant. The tests on these flotation methods were conducted in pans or vessels worked on the principles of spitzkasten, following the lines of Potter and Delprat.
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