Wooden model of a cyanide plant. A cyanide plant was used for dissolving gold from finely divided ores by means of dilute solutions of sodium or potassium cyanides. The model has five metal bins, there is some rust on the bins and scorch mark on the wooden base.mining, equipment, cyanide plant, gold cyanidation (also known as the cyanide process or the macarthur-forrest process) is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. it is the most commonly used leaching process for gold extraction. the ore is comminuted using grinding machinery. depending on the ore, it is sometimes further concentrated by froth flotation or by centrifugal (gravity) concentration. water is added to produce a slurry or pulp. the basic ore slurry can be combined with a solution of sodium cyanide or potassium cyanide, however many operations utilize calcium cyanide, which is more cost effective. to prevent the creation of toxic hydrogen cyanide during processing, slaked lime (calcium hydroxide) or soda (sodium hydroxide) is added to the extracting solution to ensure that the acidity during cyanidation is maintained over ph 10.5 - strongly basic. lead nitrate can improve gold leaching speed and quantity recovered, particularly in processing partially oxidized ores.

Bendigo Advertiser ''The way we were'' from 2000. New: Gold mining took on a different form at the end of the 1800s in central Victoria with cyanide used at the Sadowa Cyanide Works in Talbot. The clip is in a folder.newspaper, bendigo advertiser, the way we were

Record Book - The Whipstick Cyanide Company 1902-03. Cyanide records from March 1902 - March 1903; Petty Cash records and 'Rough Statements' from March 1902 to March 1903; Summary of Smelting April 1902 to Dec 1092 ( for Whipstick Cyanide Company and The Marong Gold Company); Various statements of expenditure; Income Tax Return 1902.bendigo, industry, whipstick cyanide company, whipstick cyanide company

Black and white photograph or Frederick the Great Dumps, Sebastian, from the cyanide processorganization, business, industrial, frederick the great dumps, cyanide process, sebastian

The Marong Gold Company - various records 1902 - 1911. Cyanide record Feb 1902-April 1903; Petty Cash & Rough Statements Feb 1902-April 1903; Cyanide records Feb 1910 - September 1910 (Marong Gold Company - no stamp??)mine, gold, the marong gold company, the marong gold company

Bendigo Advertiser "The way we were" from 1999. Work away: the Virginia Cyanide vats in Eaglehawk in the late 1930s.newspaper, bendigo advertiser, the way we were

Murray Comrie Collection. This photograph is a reasonable copy created from an older original.A black and white photograph depicting six men with two horse-drawn carts at the Jim Crow Cyanide Plant, Tarnagullatarnagulla, mining, cyanide plant, jim crow, work, employment, industry

Colour photograph of a story board marking former site of a gold processing cyanide plant at Christmastown. Photo is mounted on an album page.storyboards, working miners gold mining co, gold mining, cyanide plant

Magdala cum Moonlight Gold Mining Company Mine Workmen 1906Group of men and older boys many leaning on shovels in front of horses and drays containing crushed quartz. Cyanide vats in background.stawell gold mining

Brass Beam Balance in Wood and Glass Case used for Weighing Gold used by Shuttleworth Family who worked a Cyanide Plant at Deep Leadstawell

W.E. Mullins was associated with a Cyanide Plant at Talbot Flat.Handwritten letter from Charles Cole to the Ballarat School of Mines relating an analysis of a . w.e. mullins, talbot flat, cyaniding, cyanide works

During the 1890s the Ballarat School of Mines started teaching photography.Handwritten invoice on printed letterhead. The invoice was for chemicals and apparatus for the Ballarat School of Mines, including items for the Chemical Laboratory, Photography Laboratory, Electrical Laboratory and Cyanide.walter cornell, ballarat school of mines, laboratory, chemist, pharmacy, photography electricity, photographic equipment

Jubilee Dam in foreground that supplied water used in the Cyanide process.B/W photo looking at plant across damstawell mining

Cyanide Operation Records (April 1900-March 1901; Statements/Petty Cash April 1900 -March 1901. Listed as #10 - only as Cyanide operation records. Cyanide operation records are headed on each page as ‘‘Vats for (month (year)''. Operation Records and financial statements are entered separately from the front and back of the book. In centre, between these entries are some torn out pages plus handwritten copy of a draft?? Letter to The Hon the Minister of Mines re some miners' ''unfortunate situation'' - requesting an interview in relation to the matter concerning a mining lease issue and trespass. No name is attached as a signature to indicate the author of said letter.bendigo, industry, sebastian cyanide works, cyanide operation records

Wilson – Hec or Harold – Darlington Road in Background. The building in background could be the Cyanide works.stawell

Sebastian Cyanide Works: Operation records May 1904 to January 1910 (J Evans Collection). Hand-ruled and pencil entries for the period (6 days per week). Pencilled inscriptions inside front cover - D Henneberry, Sebastian; John Evans; P MacCarthy (printed stamp), Sebastian Cyanide Works. / note from View Point Iron & Brick Yards Eaglehawk 28.3.1906 13 Bags of Limebendigo, industry, sebastian cyanide works, sebastian cyanide works. view point iron and bricks work eaglehawke

Magdala cum Moonlight Mine. Wide view of mine with Grampians Mountains in background.Mine with snow. The Cyanide plant was constructed in Sept 1900 and became the largest in Victoria. Just in front of the large tree a ramp can be seen and a horse and dray going up the ramp. Just below and to the left of the tree the cyanide vats can be seen. On the right is the poppet head of the Magdala and Oriental and North Cross Mine. The fire station is on the left in the far distance. with the W S Heal & Sons Coachbuilders Corner of Lazelle and Byrne Street businessMagdala Cum Moonlight Mine. Herbert's Studio. Stawellstawell gold mining

Sebastian Cyanide Works Assay book - May 1910 to May 1911 (entered into book in reverse) J Evans Collection. Pencilled entries re description/location of sample with assay results.bendigo, industry, sebastian cyanide works, sebastian cyandie works

M. Eissler A.I.M.E. was a member of the Institute of Mining and Metallurgy.Red Hardcovered book of 678 pages with around 250 illustrations and numerous folding plates. Contents include: gold mining in California, Gold as a metal; Hydraulic Process; treatment of Gold bearing Ores; Crushing and Amalgamation (Queensland, California); Mills; Buddle; concentrator; Roasting ores; Roasting Pyritic Ores; Hydro-Metallurgy; Chlorination; Electro-Metallurgy; Cyanide; Erection of a Cyanide Plant; Chemistry of the Cyanide Process; Spelting, CupulationCrushing ore; 160 stamp battery; Mill site and battery; causes of failure in gold mining, South African Gold Fields; Gold in Australia (pg 589) Advertisements include: Fraser & Chalmers; Bowes scott & Western Ltd; Fried. Krupp Grusonwerk; Stanley; Humbolt Engineering Works Co., Townson & Mercer.gold, mining, metallurgy, pyrites, cupel, brook, rand, california, america, gold mining

POSTCARD - picture of Cyanide Works -Agelo and Driefontein G.M. Coys / published by Salio Epstein & Co Durban / black and white photo painted in showing race ways and water wheel / circa 1901Salio Epstein & Co Durbanpostcard, photograph, various themes, southern africa cyanide works angelo driefontein mine industrial / - picture of cyanide works -agelo and driefontein g.m. coys / published by salio epstein & co durban / showing race ways and water wheel / circa 1901

Negative,/Hand drawn of the goldfield featuring gold mine sites,cyanide vats,heaps,railway station,sports ground. A small map of the Whipstick area, and legend. Tom Patullo was formerly of Clear-Ads Bendigo.cottage, miners, sebastian goldfield, sebastian goldfield

Black and white photo of a 10 Buoy Unit installed at O'Halloran's Cyanide Plant at Eaglehawk. Photo shows two views, one from the side and one from the top of the unit. Information typed on the back of the photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, o'halloran's cyanide plant eaglehawk, vincent kelly

Hints to Prospectors and Owners of Treatment Plants. Notes on how to recover and clean gold, cleaning of a cyanide plant, warnings, explanations, disposal of bullion, premium on gold, and commonwealth gold bounty act. Orang cover. 10 pages.australia, notes about treatment plants.

Sebastian Cyanide Works Assay book - 1907 - 1910 entries (although listed as being ''#17 August 1907 to August 1908''). J. Evans collection. Handwritten pencil entries with origin/description of sample and assay results.bendigo, industry, sebastian cyanide works, sebastian cyanide works.

Mr Joe Catterall & Mr L.J. Romey were partners in a cyaniding operation to obtain gold from the Southern Consuls Mine after second world war.Booklet printed on paper with a light blue card cover.Stamped on title page: "L.J. Romey, Chemist & Chiropodist, Queenscliff" Written below this in blue ink: "August 1951 [or 1957]"mining, gold mining

Mr Catterall, Joe & Mr L.J. Romey were partners in a cyaniding operation to obtain gold from the Southern Consuls Mine after second world war.Booklet printed in black on paper. Cover has some areas highlighted in blue. Back cover missing.Some pages have penciled mathematical calculationsgold mining, mining, mining industry, mining equipment

Mr Catterall, Joe & Mr L.J. Romey were partners in a cyaniding operation to obtain gold from the Southern Consuls Mine after second world war.Booklet printed in black on paperSeries title: "The Dorr Compant, Inc. Bulletin No. 3041"gold mining, mining industry, gold processing