The Oceania Times

Top Menu

  • About us
  • Contact Us
  • Cookie Policy
  • Disclaimer
  • Privacy Policy
  • Terms and Conditions

Main Menu

  • Australian Economy
  • Brokers
  • Commodities
  • Currencies
  • Financial Market
  • Gold and Precious Metals
  • Investment
  • Stock Shares
  • About us
  • Contact Us
  • Cookie Policy
  • Disclaimer
  • Privacy Policy
  • Terms and Conditions

logo

The Oceania Times

  • Australian Economy
  • Brokers
  • Commodities
  • Currencies
  • Financial Market
  • Gold and Precious Metals
  • Investment
  • Stock Shares
  • CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

  • Adani Enterprises FPO today: Adani Enterprises FPO: Analysts, brokers cite growth potential, some flag valuation

  • Green power is in • The Register

  • U.S. securities regulator probes investment advisers over crypto custody -sources

  • Raymond James Financial Services Advisors Inc. disposes of 1,602 SAP SE shares (NYSE:SAP)

Gold and Precious Metals
Home›Gold and Precious Metals›Rokmaster Solves Metallurgy at Revel Ridge, Achieves Overall Gold Recovery of 96.8%

Rokmaster Solves Metallurgy at Revel Ridge, Achieves Overall Gold Recovery of 96.8%

By Megan
June 1, 2022
52
0
Share:

VANCOUVER, BC, June 1, 2022 /CNW/ – Rokmaster Resources Corp. (TSXV: RKR) (OTCQB: RKMSF) (FSE: 1RR1) (“Rokmaster” or “the Company”) is pleased to announce the development of a high-recovery extraction process for gold, silver and other metals for the first time in the history of the Revel Ridge Project (“Revel Ridge” or “the Project”).

Rokmaster’s recently concluded metallurgical test program assessed proven metal recovery technologies to refine and optimize the metallurgical responses of the Revel Ridge Main Zone (“RRMZ”) refractory mineralization.

For more than two years, Rokmaster has undertaken numerous metallurgical tests to advance the flowsheet from an initial overall gold recovery of 74.3% (Rokmaster news release, Sept 30, 2020). Recent metallurgical test work and repeatable Locked Cycle Tests (“LCT”) provided an updated flowsheet that is returning overall gold recoveries at 96.8%.

The new flowsheet parameters used to achieve these high levels of recovery are:

  • Flotation:
    Bulk flotation of all sulphides recovers approximately 98.3% of the gold to a bulk concentrate in ~45% mass pull.
    Bulk Concentrate regrind is now set at approximately 20-30 micron P80.
    Lead recovery to a lead concentrate has increased from 57% to 75.7%.
    Gold recovery to a lead concentrate is approximately 21.1%.
    Zinc recovery to a zinc concentrate has increased from 51.0% to 69.5%.
    Approximately 3.6% of the gold is recovered to the zinc concentrate.

  • Pressure Oxidation: The pressure oxidation parameters have been determined. Minor regrinding after pressure oxidation and prior to leaching, assisted in achieving a gold leach recovery before solution losses of 98.0%.

Figure1 – Developed Flowsheet with Gold Recoveries (CNW Group/Rokmaster Resources Corp.)

Figure1 – Developed Flowsheet with Gold Recoveries (CNW Group/Rokmaster Resources Corp.)

John Mirko, President and CEO of Rokmaster stated:

“Rokmaster has defined an efficient process flowsheet that achieves significantly improved recoveries of all target metals and is the first of its kind for the Revel Ridge (formally the J&L Property) Project, since work first began on the RRMZ in 1912. The metallurgical developments by Canenco Consulting Corp., Base Metallurgical Laboratories Ltd. and SGS Canada Inc. (Lakefield) have advanced the flowsheet to provide a robust, repeatable gold extraction process that significantly de-risks the Revel Ridge Project. Getting to this transformative stage has taken an impressive amount of testing and commitment, and we would like to thank our metallurgists for continued perseverance and achieving such excellent results to unlock the potential value of the RRMZ. With high gold recovery and solved metallurgy, Rokmaster will now progress with additional metallurgical testing of other variable parts of the RRMZ, including the visible native gold areas, updating the recent PEA, and engineering as it continues drilling for resource expansion on this rare world class asset with significant resources and exploration upside, located in a top tier safe location.”

About Refractory Precious Metal Mineralization and Treatment:

Pressure Oxidation (“POX”) is a robust process used to extract gold, copper, zinc, and other metals from refractory mineralization that typically give low recoveries when directly leached.  The most common refractory minerals are pyrite and arsenopyrite, which are sulfides that trap the gold within them such as which is present at Revel Ridge. The POX process utilizes the injection of oxygen into slurries at temperatures around 220-230 degrees Celsius and elevated pressures around 440psi, to oxidize and liberate the minerals from refractory matrix.  This process has been used since 1985 when it was first put into commercial production at Homestake’s McLaughlin mine in California. It has increased in use since that time.

POX was selected as the most feasible processing technology for Rokmasters’ refractory precious metal mineralization due to it being the most robust proven technology with “package plants” now being able to be purchased and built, its relatively smaller footprint compared with other oxidative process, its ability to provide a path to achieve high gold recoveries with RRMZ mineralization when compared with other available technologies.

The current resource at Revel Ridge consists of:

Measured & Indicated (M&I): 6,730,000 million tonnes (“MT”) containing 1,357,800 ounces gold equivalent (“AuEq”) @ 6.27 g/t AuEq and Inferred (Inf): 6,000,000 MT containing 1,220,400 ounces AuEq @ 6.33 g/t AuEq.

*(Technical Report and Updated Mineral Resource Estimate of the Revel Ridge Polymetallic Property Revelstoke Mining Division, British Columbia, Canada, William Stone, Ph.D., P.Geo. Fred Brown, P.Geo. Jarita Barry, P.Geo. David Burga, P.Geo. Eugene Puritch, P.Eng., FEC, CET Stacy Freudigmann, P.Eng. F.Aus.IMM. P&E Mining Consultants Inc. Report 411 Effective Date: November 15, 2021 Signing Date: January 17, 2022 filed on SEDAR.)

The technical information in this news release has been prepared in accordance with Canadian regulatory requirements has been reviewed and approved by Mr. Stacy Freudigmann, P.Eng. F.AusIMM. and by Mr. Eric Titley, P. Geo., who are independent of the Company and who are Qualified Persons as set out in National Instrument 43-101 and are independent of Rokmaster.

On Behalf of the Board of Directors of

Rokmaster Resources Corp.

John Mirko,
President & Chief Executive Officer.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term in defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release.

About Rokmaster

Rokmaster controls a portfolio of three significant exploration and development projects all of which are located in southern British Columbia in regions of excellent infrastructure. The three projects include:

  1. Revel Ridge. Rokmaster is currently conducting an underground drill program at the Revel Ridge Project located in southeastern British Columbia 35 km’s north of the City of Revelstoke. Revel Ridge is host to a high-grade gold and polymetallic orogenic sulphide deposit which has been the subject of a PEA Technical Report dated December 8, 2020 and a Technical Report of an Updated Mineral Resource Estimate on the Revel Ridge Property, dated January 17, 2022.

  2. Big Copper. Rokmaster controls the Big Copper Property in the Kimberley area of southern British Columbia. Big Copper is a high-grade copper-silver occurrence hosted in mid-Proterozoic rocks. Copper-silver mineralization has been traced for 4.5 km along strike and is exposed in a series of adits and trenches over approximately 500 m of vertical relief. Big Copper likely belongs to a class of stratabound replacement copper-silver deposits hosted within mid – Proterozoic quartzitic sediments. The style and stratigraphic setting of mineralization at Big Copper may be analogous to similar stratabound silver-copper deposits in NW Montana, e.g., the Troy Mine (a significant past producer of copper and silver) and Hecla’s Montanore pre-development project, with, 112 million tonnes Inferred at 54.8 g/t Ag and 0.7% Cu*. (Hecla, 2020 Annual Report, Pg. 119. www.hecla-mining.com).1

    Footnote (1). The qualified person has been unable to verify this inferred resource.

  3. Duncan Lake Zinc. Duncan is a carbonate hosted silver-lead-zinc deposit located near Duncan Lake in southern British Columbia. The deposit is hosted within a Cambrian age Badshot Limestone which also hosts Zn-Pb-Ag mineralization at Teck’s recently producing Pend Oreille Mine as well as past producers including the Blue Bell Mine, Reeves MacDonald Mine, Jersey Emerald and HB mines. Mineralization at Duncan Lake forms in the crest and limbs of the regional scale Duncan Lake anticline, where strong zinc-lead +/- silver mineralization has been traced by surface and underground drilling for approximately 2,500 m. At Duncan Lake, Rokmaster will be targeting > 30 Mt of >10% Zn+Pb+Ag. Historical background and a geological synthesis of the Duncan Lake deposit is provided in a NI 43-101 report by Lane, B., 2018: Technical Report on the Duncan Lake Project.

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS: This news release may contain forward-looking information within the meaning of applicable securities laws (“forward-looking statements”). Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words “expects,” “plans,” “anticipates,” “believes,” “intends,” “estimates,” ‘projects,” “potential” and similar expressions, or that events or conditions “will,” “would,” “may,” “could” or “should” occur. These forward-looking statements are subject to a variety of risks and uncertainties which could cause actual events or results to differ materially from those reflected in the forward-looking statements, including, without limitation: risks related to fluctuations in metal prices; uncertainties related to raising sufficient financing to fund the planned work in a timely manner and on acceptable terms; changes in planned work resulting from weather, logistical, technical or other factors; the possibility that results of work will not fulfill expectations and realize the perceived potential of the Company’s properties; risk of accidents, equipment breakdowns and labour disputes or other unanticipated difficulties or interruptions; the possibility of cost overruns or unanticipated expenses in the work program; the risk of environmental contamination or damage resulting from Rokmaster’s operations and other risks and uncertainties. Any forward-looking statement speaks only as of the date it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise.

Rokmaster Resources Corp. (CNW Group/Rokmaster Resources Corp.)

Rokmaster Resources Corp. (CNW Group/Rokmaster Resources Corp.)

SOURCE Rokmaster Resources Corp.

Cision

Cision

View original content to download multimedia: http://www.newswire.ca/en/releases/archive/June2022/01/c4081.html

Source link

Previous Article

Taiwan restricts exports of strategic high-tech commodities ...

Next Article

Arteria AI Announces Strategic Investment Co-Led by ...

0
Shares
  • 0
  • +
  • 0
  • 0
  • 0
  • 0

Megan

Related articles More from author

  • Gold and Precious Metals

    Maxed out

    June 28, 2022
    By Megan
  • Gold and Precious Metals

    Q3 2022 Operating and Financial Results

    November 29, 2022
    By Megan
  • Gold and Precious Metals

    Geopolitical uncertainty, global slowdown to increase gold’s appeal in 2023

    December 26, 2022
    By Megan
  • Gold and Precious Metals

    What Is The Gold Price In France?

    July 28, 2022
    By Megan
  • Gold and Precious Metals

    JPMorgan Traders’ Attys. Awarded $20M In Spoofing Case

    July 9, 2022
    By Megan
  • Gold and Precious Metals

    Deepinder Goyal Teases Zomato Gold Comeback

    December 29, 2022
    By Megan

Leave a reply Cancel reply

You may interested

  • Brokers

    Mayor Eric Adams to roll out reforms to help the homeless and low-income families get permanent housing

  • Australian Economy

    GBP/AUD Drops Despite Better-than-Expected UK GDP

  • Australian Economy

    Australia’s first homegrown sesame seeds are now being served at a Melbourne restaurant

  • LATEST REVIEWS

  • TOP REVIEWS

Timeline

  • January 27, 2023

    CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

  • January 27, 2023

    Adani Enterprises FPO today: Adani Enterprises FPO: Analysts, brokers cite growth potential, some flag valuation

  • January 27, 2023

    Green power is in • The Register

  • January 27, 2023

    U.S. securities regulator probes investment advisers over crypto custody -sources

  • January 27, 2023

    Raymond James Financial Services Advisors Inc. disposes of 1,602 SAP SE shares (NYSE:SAP)

Best Reviews

Latest News

Stock Shares

CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

The most recent filing that CX Institutional has made with the SEC reveals that during the third quarter, the company increased its holdings in Pentair plc (NYSE: PNR) by 1,090.2%. ...
  • Adani Enterprises FPO today: Adani Enterprises FPO: Analysts, brokers cite growth potential, some flag valuation

    By Megan
    January 27, 2023
  • Green power is in • The Register

    By Megan
    January 27, 2023
  • U.S. securities regulator probes investment advisers over crypto custody -sources

    By Megan
    January 27, 2023
  • Raymond James Financial Services Advisors Inc. disposes of 1,602 SAP SE shares (NYSE:SAP)

    By Megan
    January 27, 2023
  • Recent

  • Popular

  • Comments

  • CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

    By Megan
    January 27, 2023
  • Adani Enterprises FPO today: Adani Enterprises FPO: Analysts, brokers cite growth potential, some flag valuation

    By Megan
    January 27, 2023
  • Green power is in • The Register

    By Megan
    January 27, 2023
  • U.S. securities regulator probes investment advisers over crypto custody -sources

    By Megan
    January 27, 2023
  • CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

    By Megan
    January 27, 2023
  • Australia’s economy: boom or bust?

    By Megan
    September 9, 2019
  • Australian economy suffers virus symptoms

    By Megan
    February 10, 2020
  • Australian economy likely already slowing in Q2 before Delta downturn

    By Megan
    August 30, 2021

Trending News

  • Stock Shares

    CX Institutional Purchases Pentair plc (NYSE:PNR) Shares

    The most recent filing that CX Institutional has made with the SEC reveals that during the third quarter, the company increased its holdings in Pentair plc (NYSE: PNR) by 1,090.2%. ...
  • Brokers

    Adani Enterprises FPO today: Adani Enterprises FPO: Analysts, brokers cite growth potential, some flag valuation

    Mumbai: Several brokers and analysts are recommending that investors subscribe to Adani Enterprises‘ ₹20,000 crore follow-on public offering (FPO) that opens Friday. The flagship entity of the Adani Group is ...
  • Investment

    Green power is in • The Register

    The world has reached a major tipping point in the transition from fossil fuels to low-carbon energy: 2022 was the first year global investments in low-carbon technologies matched spending on ...
  • Investment

    U.S. securities regulator probes investment advisers over crypto custody -sources

    NEW YORK, Jan 26 (Reuters) – The U.S. Securities and Exchange Commission is probing registered investment advisers over whether they are meeting rules around custody of client crypto assets, three ...
  • Stock Shares

    Raymond James Financial Services Advisors Inc. disposes of 1,602 SAP SE shares (NYSE:SAP)

    Raymond James Financial Services Advisors Inc. reduced its holdings in SAP SE (NYSE: SAP) during the third quarter by 16.1 percent, as stated in the most recent 13F disclosure that ...
  • About us
  • Contact Us
  • Cookie Policy
  • Disclaimer
  • Privacy Policy
  • Terms and Conditions
© Copyright The Oceania Times. All rights reserved.

SUBSCRIBE TO OUR NEWSLETTER

Get our latest downloads and information first. Complete the form below to subscribe to our weekly newsletter.