haber process gold mining patent

The Mercury Problem in Artisanal and Small‐Scale …

2018-1-3 · These mining activities largely take place in the so-called "informal" economy in which participants operate unlicensed or without legal authorization—a reason why effective regulation of mercury emissions is extraordinarily difficult. 11 Nevertheless, these artisanal miners contribute substantially to the local and global economy, generating approximately 15 to 25 % of the world''s gold ...

Plexxikon Wins Patent Infringement Case Against …

2021-7-22 · BERKELEY, Calif., July 22, 2021--Plexxikon Wins Patent Infringement Case against Novartis; Jury Upholds Validity of Patent Claims, Issues Damages Award of $178 Million

Hazer Group Ltd has second Australian patent …

2019-2-26 · Hazer Group Ltd has received a further boost as it advances commercialisation of its low-emission hydrogen and graphite production process through acceptance of a second Australian patent …

PATENTSCOPE

2021-3-16 · PATENTSCOPE. The PATENTSCOPE database provides access to international Patent Cooperation Treaty (PCT) applications in full text format on the day of publication, as well as to patent documents of participating national and regional patent offices. The information may be searched by entering keywords, names of applicants, international patent ...

Patents Assigned to Newmont Mining Corporation

2000-9-29 · Patents Assigned to Newmont Mining Corporation. Method and system for pressure oxidation of sulfide gold ores involving enhanced oxygen-sulfide contact. Patent number: 6395063. Abstract: A system and method for recovering gold using pressure oxidation is disclosed. In one embodiment, a feed slurry is introduced into multiple compartments or stages ...

Annotated chemical patent corpus: a gold standard …

Text mining methods can help to ease this process. To validate the performance of such methods, a manually annotated patent corpus is essential. In this study we have produced a large gold standard chemical patent corpus. We developed annotation guidelines and selected 200 full patents from the World Intellectual Property Organization, United ...

Project Amazonia: Solutions

2002-12-6 · Methods that mining operations can use to reduce their environmental impact: Named after the developer, Norman Haber, the Haber Gold Process (HGP) is a solution aimed at minimizing the use of mercury and cyanide in the process of extracting gold. Details of the exact technique employed in this method are not indicated here, as the technique is ...

haber gold process patent « BINQ Mining

2013-4-24 · Ammonia, the substance that changed the world (translated by Mark …. On 13th October 1908, the German chemist Fritz Haber filed the patent for ammonia. …. What Haber patented was the process of obtaining NH3 by combining …. However the majority of his time until 1926 was dedicated to looking for gold in the ….

Challenges and opportunities in the recovery of gold from ...

compared to conventional mining practice,15 it also presents economic drivers for wealth creation and circular economies.16–21 In this review, we outline some of the latest chemical approaches that have been reported for the recovery of gold from discarded mobile phones and other WEEE.22,23 Gold is the

New Eco-Friendly, Non-Cyanide Based Alternative for …

2017-2-8 · The patent-pending EnviroLeach process is safe, eco-friendly, and provides faster leach kinetics than cyanide on most ores, concentrates and tailings. ... The gold mining …

Hazer Group Ltd granted its first Australian patent for ...

2019-4-23 · The Hazer Process converts natural gas into hydrogen and graphite, using iron ore as a process catalyst. Securing patent rights in Australia is a significant step …

Stephen FOLEY, et al. : Gold Extraction

2020-4-19 · The common practice of mining for gold creates environmental issues because it requires large amounts of sodium cyanide. Meanwhile, recycling gold from electronic scraps like computer chips and circuits involves processes that are costly and have environmental implications. ... As taught in this patent, the extraction of gold with DBC from the ...

Revisiting The Great Gold/Bitcoin Debate

2021-6-8 · Over five months ago, I gave my perspective on a popular topic in finance, " the Great Gold vs Bitcoin Currency Debate " . At that time, Bitcoin was just under $20,000 with about a 50% ...

Mineworx Technologies Ltd gets US patent for gold …

2018-11-13 · Mineworx Technologies gets US patent for gold mining extraction process. The system can handle both alluvial and crushed rock deposits. Mineworx is a leading provider of proprietary, cost-effective and non-toxic precious metals extraction solutions.

How to Patent a Mining Claim

How to Patent a Mining Claim. Mining claims, like homesteads, were created by a worker (in this case a prospector looking for gold, silver, lead, zinc, copper, etc.) who would go into the mountains and "stake his claim". At this point, the mining claim is not yet …

patented gold claims in oregon

2012-11-11 · patented gold claims oregon – Grinding Mill China. Gold Mining Properties For Sale! – Sumpter Oregon …. Price: $450,000 The Oregon Chief Group Cable Cove. Baldy Mtn. Area Patented Gold Mine "Hard Rock Mining Claims …. » More detailed.

Hazer Group Ltd has second Australian patent …

2019-2-26 · Graphite produced from the Hazer Process. Innovation patent now enforceable Australian innovation patent AU 2018101787, ''A process for producing hydrogen and …

Going for gold: Alternative processing ...

2014-1-17 · Speaking to Paul Breuer at the CSIRO, he told Australian Mining that research is currently developing gold processes using thiosulfate as an alternative lixiviant to cyanide and have made some ...

Gold recovery process

19. A process as in claim 12, wherein the elemental gold is dissolved by exposure to a cyanide salt under alkaline conditions with the addition of oxygen. 20. A process as in claim 12, wherein the gold-cyanide complex is adsorbed on the activated carbon in an agitated tank with air addition. 21.

Artisanal and Small-Scale Gold Mining Without …

Artisanal and Small-Scale Gold Mining Without Mercury. In many countries, elemental mercury is used in artisanal and small-scale gold mining. Mercury is mixed with gold-containing materials, forming a mercury-gold amalgam which is then heated, vaporizing the mercury to obtain the gold. This process can be very dangerous and lead to significant ...

Recovering gold from carbon fines by a gold transfer …

2003-2-1 · When activated carbon is used for recovering gold in the gold industry, carbon fines are generated in stripping, acid-washing and kiln regeneration circuits. The carbon fines at the Fort Knox mine, Fairbanks Gold Mining Inc., contain as much as 0.68 kg/t (20 oz/st) gold. In laboratory tests, gold …

Mineworx Issued U.S. Patent for Mobile Modular Gold …

2021-2-8 · For Immediate Release Mineworx Issued U.S. Patent for Mobile Modular Gold Mining/Extraction Process Vancouver, B.C., Canada – November 13, 2018 – Mineworx Technologies Ltd., (the "Company" or "Mineworx") (TSXV: MWX) (OTCQB: MWXRF) (FSE: YRS WKN: A2DSW3), a leading provider of proprietary, cost-effective and non-toxic precious metals extraction solutions to the mining …

Hazer Group Ltd granted its first Australian patent for ...

2019-4-23 · Hazer Group granted its first Australian patent for Hazer Process The Hazer Process converts natural gas into hydrogen and graphite, using iron ore as a process catalyst.

Barrick Gold Corporation

2016-9-29 · Patented process in use at Saudi Arabia mine and in Chile Flotation froth of copper concentrate during laboratory testing in Santiago, Chile Barrick has developed and patented a new flotation process that can produce copper concentrates from copper or copper-gold ores using salt or brackish water. The new process…

Mineworx Issued Second U.S. Patent for Mobile Modular …

2021-2-8 · release dated November 13, 2018 that the United States Patent and Trademark Office (USPTO) has issued U.S. Patent Number 10/351,454 covering the Mineworx HM X-tract mobile modular mining/extraction process. The second patent relates to the water reclamation subsystem for the HM X-tract mobile modular mining/extraction process.

Patents | USPTO

Jul 30, 2021. 2021 Patent Public Advisory Committee annual report discussion. Aug 18 - 20, 2021 - Virtual. Invention-Con 2021: Capitalizing on your intellectual property. Aug 18, 2021 - Virtual. Meet the Patent Experts: Class Two. Sep 15, 2021 - Virtual. Meet the Patent Experts: Class Three.

Asteroid Mining Project | SpaceGold Corp

SpaceGold is an Asteroid mining project to bring back Gold and Platinum metals to Earth. There have been efforts from companies like Planetary Resources in the past in this area, but they couldn''t pinpoint a feasible approach to process the metals in Space. Well… we have found the answer, put a patent on it, and we are aiming to deliver ...

Getting Gold without Water | Western Australian …

2021-7-26 · Gradually, the design of shakers evolved to make the process easier. Prospector hand dollying Image courtesy State Library of Western Australia 5341B/1 Lorden''s Patent Dryblower. The Lorden Patent Cradle Dryblower was invented by Steve Lorden in 1893 while in Western Australia. The dryblower revolutionized life for gold prospectors.

Mining Solutions Firm Receives Patent for Gold …

2018-11-14 · Mineworx Technologies Ltd. (MWX:TSX.V; MWXRF:OTCQB) announced it received a patent for its Mineworx HM X-tract modular process for mining gold. U.S. Patent Number 10/124,345 was granted by the United States Patent and Trademark Office. The company develops and sells nontoxic, precious metals extraction solutions for the mining …

US4557759A

A process for the hydrometallurgical recovery of gold from materials containing gold comprising leaching the materials with a lixiviant containing iodine. To a solution concentrated with natural salts is added elemental iodine until saturated, whereupon mineral sulfides in the ore zone charged with this solution react with the iodine to form iodide.

Mineworx Technologies Ltd gets US patent for gold …

2018-11-13 · Mineworx Technologies gets US patent for gold mining extraction process. The system can handle both alluvial and crushed rock deposits. Mineworx is a leading provider of proprietary, cost ...