potter and delprat

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Tetris Is a Foldback Transposon that Provided the Building ...

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.

Creating value through application of flotation science ...

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 ...

The inventive Australian mind - Convict Creations

1903 Froth flotation process- The process of separating minerals from rock by flotation was developed by Charles Potter and Guillaume Delprat of New South Wales. 1906 Feature film - The world's first feature length film, The Story of the Kelly Gang, was a little over an hour long.

3. Role of Science and Technology in Minerals and Metals ...

First use: Australia (1905) of Potter Delprat process, in the United States (19111. First use of soluble collectors: Martin (1915~. Controlled selectivity: Sheridan and Griswold cyanide (1922~.

60 Great Australian Inventions - Everywhere

Jan 06, 2016· 45. Froth Flotation: Froth flotation, developed in 1903 by Charles Potter and Guillame Delprat working for mining company BHP has been credited with being the most important operation for the recovery and upgrading of sulphide ores. 46.

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Explaining the Process of Froth Flotation

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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History of Flotation Patents

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.

Froth Flotation | PDF | Chemistry | Materials

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. Initially, naturally occurring chemicals such as fatty acids and oils were used as flotation reagents in a large quantity to increase the hydrophobicity of the valuable minerals.

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Creating value through application of flotation science ...

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 ...

froth floatation method of separation

These patents of Potter and Delprat have been labelled variously under 'acid-flotation' and 'surface tension' methods. Delprat's apparatus does indeed suggest a process of the Bradford or Wood type, but, of course, both he and Potter depended for their results on the liberation of carbon-dioxide gas from the gangue, which, at Broken Hill, contains a large proportion of …

Technology in Australia 1788-1988, Chapter 9, page 633

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.

Australian Inventions - White Hat

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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Jun 19, 2012· Flotation is often attributed to Delprat. But he had important help from Carmichael and Bradford – particularly in getting the idea to scale so that it was actually usable at volume. And Potter had essentially the same idea simultaneously. Here's how Derek Thompson puts it in the Atlantic: The world's most famous inventors are ...

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Potter v Broken Hill: misuse of precedent in cross-border ...

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-

Froth Flotation and its Machines - 911 Metallurgist

Mar 15, 1937· 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 ...

Potter v Broken Hill Pty Co Ltd - Wikipedia

Potter v Broken Hill Pty Co Ltd, was a significant Australian court case, decided in the High Court of Australia on 20 March 1906. The case was an influential decision in Australian Private International Law which is generally regarded as based on an extension of the Moçambique rule to actions for infringement of patents.: at [60]

Flotation Principles - Mineral Processing & Metallurgy

Mar 11, 2016· Potter used acid, agitation, and heat, while Delprat employed a hot solution of salt-cake or acid sodium sulphate and sulphuric acid. Both processes were successful on a large scale, particularly Delprat's, which is still in use at the …

Inventions

Jul 19, 2010· The method for separating ore from rock crushings, using bubbles to float the ore to the surface, was developed by Charles Potter and Guillaume Delprat of NSW. 1905: Thrust Bearing Anthony Michell invented the tilt-pad thrust bearing, which reduced friction and increased power transmitted.

Froth flotation process - Australia Innovates - Powerhouse ...

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.

Froth flotation - Wikipedia

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.

2021 GD Delprat Distinguished Lecture Series

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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Medal - Australasian Institute of Mining & Metallurgy ...

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.

Guillaume Daniel Delprat, Engineer & Miner (1856-1937)

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 …

Metallurgical Society - Delprat Distinguished Lecture ...

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 …

Flotation - SlideShare

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 …