Kirkland Gold - und das Suflid-Erz in Australien
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Antwort auf Beitrag Nr.: 70.808.462 von faultcode am 11.02.22 12:49:47Metso MesoTHERM BIOX: https://www.metso.com/portfolio/mesotherm-biox-process/
...
Metso’s conventional mesophile BIOX process is an economical and environmentally attractive process for liberating occluded gold hosted in refractory sulfidic material by oxidatively leaching the sulfides to soluble sulfates.
Metso MesoTHERM BIOX enhances this established process by combining mesophile bio-oxidation technology with a higher-temperature thermophile oxidative stage to enable an even more effective overall sulfide oxidation step.
...
Traditionally, cyanide consumption with conventional bio-oxidation residues is higher than with residues produced through other oxidative technologies. By using a higher-temperature thermophile microbial species, Metso MesoTHERM BIOX process can cut cyanide consumption by as much as 50% compared to conventional bio-oxidation and significantly reduce the formation of thiocyanate – a common and stable cyanide species traditionally formed as a further by-product.
Furthermore, inter-stage thickening between the two oxidative processes is used to decant off various solubilized species prevalent in the mesophile stage, thus simplifying operation of the thermophile stage.
...
...
Metso’s conventional mesophile BIOX process is an economical and environmentally attractive process for liberating occluded gold hosted in refractory sulfidic material by oxidatively leaching the sulfides to soluble sulfates.
Metso MesoTHERM BIOX enhances this established process by combining mesophile bio-oxidation technology with a higher-temperature thermophile oxidative stage to enable an even more effective overall sulfide oxidation step.
...
Traditionally, cyanide consumption with conventional bio-oxidation residues is higher than with residues produced through other oxidative technologies. By using a higher-temperature thermophile microbial species, Metso MesoTHERM BIOX process can cut cyanide consumption by as much as 50% compared to conventional bio-oxidation and significantly reduce the formation of thiocyanate – a common and stable cyanide species traditionally formed as a further by-product.
Furthermore, inter-stage thickening between the two oxidative processes is used to decant off various solubilized species prevalent in the mesophile stage, thus simplifying operation of the thermophile stage.
...
22.06.2021
Optimize gold recovery with the Metso Outotec BIOX® Process
Optimize gold recovery with the Metso Outotec BIOX® Process
Antwort auf Beitrag Nr.: 64.318.340 von faultcode am 07.07.20 11:35:172020-06
Chrysos PhotonAssay: faster, more accurate gold analysis
Tags:
• Fire Assay
• X-ray
Chrysos PhotonAssay: faster, more accurate gold analysis
Tags:
• Fire Assay
• X-ray
2020-06
Outotec introduces MesoTHERM BIOX process to significantly reduce cyanide consumption in refractory gold ore treatment
https://www.mogroup.com/news/2020/6/outotec-introduces-mesot…
Traditionally, cyanide consumption with conventional bio-oxidation residues is higher than with residues produced through other oxidative technologies. The Outotec® MesoTHERM BIOX® process, based on Outotec’s proven mesophile BIOX process, offers an easy, cost-effective upgrade path that can cut cyanide consumption by as much as 50% compared to conventional bio-oxidation.
The Outotec MesoTHERM BIOX process enhances the established mesophile BIOX process by combining mesophile bio-oxidation technology with a higher-temperature thermophile oxidative stage to enable an even more effective overall sulfide oxidation step.
Reduced cyanide consumption and simplified process operation
Outotec MesoTHERM BIOX cuts cyanide consumption by as much as 50% compared to conventional bio-oxidation and significantly reduce the formation of thiocyanate – a common and stable cyanide species traditionally formed as a further by-product. Solubilized species prevalent in the mesophile stage are decanted off in an inter-stage thickening step between the two oxidative processes, simplifying operation of the thermophile stage.
A simple, cost-effective upgrade path
Upgrading to BIOX MesoTHERM is a relatively simple process that involves reconfiguring the circuit with the addition of Outotec’s proven High Rate Thickeners for inter-stage thickening and Outotec OKTOP® Atmospheric Reactors for the thermophile step.
“Our conventional mesophile BIOX process has enabled the production of over 25 million ounces of gold to date. This novel process takes advantage of these proven technologies to help our customers achieve significant cost savings while also reducing their environmental footprint,” says Craig van Buuren, Senior Process Engineer, Outotec.
Key benefits
• Reduces cyanide consumption by up to 50% and lowers reagent storage requirements
• Produces cleaner BIOX product solids
• Offers easy, cost-effective upgrade for existing BIOX operations
• Based on proven technologies and standard processing equipment
Outotec MesoTHERM BIOX Process
https://www.outotec.com/products-and-services/technologies/h…
Outotec introduces MesoTHERM BIOX process to significantly reduce cyanide consumption in refractory gold ore treatment
https://www.mogroup.com/news/2020/6/outotec-introduces-mesot…
Traditionally, cyanide consumption with conventional bio-oxidation residues is higher than with residues produced through other oxidative technologies. The Outotec® MesoTHERM BIOX® process, based on Outotec’s proven mesophile BIOX process, offers an easy, cost-effective upgrade path that can cut cyanide consumption by as much as 50% compared to conventional bio-oxidation.
The Outotec MesoTHERM BIOX process enhances the established mesophile BIOX process by combining mesophile bio-oxidation technology with a higher-temperature thermophile oxidative stage to enable an even more effective overall sulfide oxidation step.
Reduced cyanide consumption and simplified process operation
Outotec MesoTHERM BIOX cuts cyanide consumption by as much as 50% compared to conventional bio-oxidation and significantly reduce the formation of thiocyanate – a common and stable cyanide species traditionally formed as a further by-product. Solubilized species prevalent in the mesophile stage are decanted off in an inter-stage thickening step between the two oxidative processes, simplifying operation of the thermophile stage.
A simple, cost-effective upgrade path
Upgrading to BIOX MesoTHERM is a relatively simple process that involves reconfiguring the circuit with the addition of Outotec’s proven High Rate Thickeners for inter-stage thickening and Outotec OKTOP® Atmospheric Reactors for the thermophile step.
“Our conventional mesophile BIOX process has enabled the production of over 25 million ounces of gold to date. This novel process takes advantage of these proven technologies to help our customers achieve significant cost savings while also reducing their environmental footprint,” says Craig van Buuren, Senior Process Engineer, Outotec.
Key benefits
• Reduces cyanide consumption by up to 50% and lowers reagent storage requirements
• Produces cleaner BIOX product solids
• Offers easy, cost-effective upgrade for existing BIOX operations
• Based on proven technologies and standard processing equipment
Outotec MesoTHERM BIOX Process
https://www.outotec.com/products-and-services/technologies/h…
Antwort auf Beitrag Nr.: 58.327.971 von faultcode am 29.07.18 14:36:59
• Coolgardie deposits: https://www.wallstreet-online.de/diskussion/1106732-11591-11…
• Laverton Gold Operations: https://www.wallstreet-online.de/diskussion/1106732-11581-11…
Suflid-Erz in Australien: Coolgardie deposits + Laverton Gold Operations
refraktäres Erz (mir unbekannter Qualität) bei beiden Liegenschaften; siehe:• Coolgardie deposits: https://www.wallstreet-online.de/diskussion/1106732-11591-11…
• Laverton Gold Operations: https://www.wallstreet-online.de/diskussion/1106732-11581-11…
Trading Spotlight
<Aktivierungsposting.
Ich weiß noch nicht, ob ich diesen Thread noch mal brauchen werde in Bezug auf goldhaltiges Sulfiderz.>
Ich weiß noch nicht, ob ich diesen Thread noch mal brauchen werde in Bezug auf goldhaltiges Sulfiderz.>
refraktäres Erz in Russland
2016:https://www.miningsee.eu/refractory-ore-trouble-russian-gold…
=>
Nowhere is this problem of complex ore more prevalent than in Russia, where approximately 80% of gold reserves are refractory or partly so, according to figures from Petropavlovsk PLC.
Antwort auf Beitrag Nr.: 55.128.095 von faultcode am 12.06.17 22:00:43
D.h. die Biooxidation ist erst die erste Sulfid-Oxidation (immer?), bevor eine weitere Oxidation, wie z.B. konventionelle Zyanidlaugung, stattfindet.
Damit muss bei Verwendung von BIOX die gesamte Prozesskette fein und langwierig aufeinander abgestimmt werden, um eine Vielzahl von Randbedingungen einzuhalten:
- Prozess-Verfügbarkeit
- Recovery rates
- Durchflüsse: min, max
- Dauer eines Verfahrenschrittes
- Totzeiten
- genauer Typ des Sulfiderzes
- Kosten
- ???
=> man sieht, die Sache riecht nach einem stark nicht-linearen, multivariablem System -> mögliche Lösung:
- Dynamic Programming
__=> Adaptive Dynamic Programming (z.B. wenn sich die Erzcharakteristik ändern sollte, weil der Erzkörper nicht homogen ist - wie meistens eigentlich)
das Anschauungsbild zur Biooxidation (BIOX)
aus obigem Link:
D.h. die Biooxidation ist erst die erste Sulfid-Oxidation (immer?), bevor eine weitere Oxidation, wie z.B. konventionelle Zyanidlaugung, stattfindet.
Damit muss bei Verwendung von BIOX die gesamte Prozesskette fein und langwierig aufeinander abgestimmt werden, um eine Vielzahl von Randbedingungen einzuhalten:
- Prozess-Verfügbarkeit
- Recovery rates
- Durchflüsse: min, max
- Dauer eines Verfahrenschrittes
- Totzeiten
- genauer Typ des Sulfiderzes
- Kosten
- ???
=> man sieht, die Sache riecht nach einem stark nicht-linearen, multivariablem System -> mögliche Lösung:
- Dynamic Programming
__=> Adaptive Dynamic Programming (z.B. wenn sich die Erzcharakteristik ändern sollte, weil der Erzkörper nicht homogen ist - wie meistens eigentlich)
(kleiner) Link zum Thema Biooxidation
http://wiki.biomine.skelleftea.se/wiki/index.php/Biooxidatio…
Antwort auf Beitrag Nr.: 55.077.925 von Hilmarreuss am 04.06.17 16:55:55
Ich hatte mal ein Depot bei der Commerzbank (bis es von den Rahmenbedingungen her nicht mehr ging). Das habe ich dann in 2017Q1 nach DAB+CC übertragen, und dann später alles zu flatex.
Ja, ich hätte meine KL-Anteile möglicherweise (mit) über den Atlantik schieben können.
__
Ich empfehle auch niemandem seine KL's zu verkaufen.
Es ist aber so (in meinem Denken), dass Verkaufen manchmal Gründe vollkommen ausserhalb des Anlegers/Spekulaten hat, während Kaufen oft klare Signale sendet bzw senden will (ausser jemand will täuschen, z.B. eine interne Führungskraft.)
Der Rechtsrahmen für den einzelnen Anleger/Spekulaten kann manchmal ganz unterschiedlich sein, auch wenn beide im selben Land leben.
Merci,
wie gesagt: sehr komplizierte GeschichteIch hatte mal ein Depot bei der Commerzbank (bis es von den Rahmenbedingungen her nicht mehr ging). Das habe ich dann in 2017Q1 nach DAB+CC übertragen, und dann später alles zu flatex.
Ja, ich hätte meine KL-Anteile möglicherweise (mit) über den Atlantik schieben können.
__
Ich empfehle auch niemandem seine KL's zu verkaufen.
Es ist aber so (in meinem Denken), dass Verkaufen manchmal Gründe vollkommen ausserhalb des Anlegers/Spekulaten hat, während Kaufen oft klare Signale sendet bzw senden will (ausser jemand will täuschen, z.B. eine interne Führungskraft.)
Der Rechtsrahmen für den einzelnen Anleger/Spekulaten kann manchmal ganz unterschiedlich sein, auch wenn beide im selben Land leben.
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