Skip to main content
  • graphic for 'Routine testing for optimising and tracking process efficiency' in white on blue background
    Routine Output Testing
    Routine Output Testing

    anemptytextlline

    Regular testing to ensure that your plant is running at full efficiency and profitability
  • Graphic for microscope imaging of recovered free gold in white on a blue background
    Analysis
    Analysis

    anemptytextlline

    In-house high-tech analysis allows for immediate results, and test program changes where necessary
  • graphic for process testwork for EGRG, GRG and gold leaching in white on blue background
    Testwork
    Testwork

    anemptytextlline

    Testwork pertaining to gravity recovery (EGRG), leaching, flotation, impact crushing, ultrafine grinding, magnetic separation and more
  • Graphic for Equipment representation - Knelson Concentrators in white on a blue background
    Equipment Representation
    Equipment Representation

    anemptytextlline

    The best equipment for the job you need, taking your budget and needs into account, and will help commission it
  • graphic for flowsheet development and testing in white on a blue background
    Flowsheet Development
    Flowsheet Development

    anemptytextlline

    Process design for optimum solutions and risk minimization

Established in 1985, Peacocke & Simpson has vast experience in the minerals processing industry, providing RELEVANT and MEANINGFUL mineral testwork on nearly all hydrometallurgical processes for nearly all minerals. Based in mineral-rich yet underdeveloped and logistically challenging Africa, we understand that our clients require practical solutions and results, as opposed to laboratory print-outs and irrelevant research.

Our Clients

“

DRA appreciates the generous expertise of Pete Simpson of P&S in gravity gold concentration and leach extraction and his valued commissioning contribution towards achieving first gold on these projects.

Glenn Bezuidenhout, Process Director, DRA Global
“

During a unique, short-term high grade period we produced 3,000 oz. of gold in a 24hr operating shift from three XD 48 Knelson Concentrators. They are worth their weight in gold.

Marnu Lombaard, Metallurgical Engineer, AngloGold
“

We have been proudly associated with Peacocke & Simpson since 1987. Over the years, they have successfully developed and executed many of the most advanced and metallurgically challenging gravity-based test programs on behalf of their clients. There is no doubt that many of these clients have realized significant positive financial benefits as a result of their practical and innovative approach.

Doug Corsan, Vice-President, Knelson Concentrators
“

Thanks to P&S for a job well done on the Singida metallurgical testwork program. Shanta can now move forward on the BFS with a great deal of confidence, knowing that the gravity and leach test work have been completed in both a comprehensive and professional manner.

Wally Channon, Technical Manager, Shanta Gold
“

Mr Pete Simpson was assigned by Consep for the final stage of our Acacia Reactor CS250 installation and commissioning. With him by our side, everything went smooth and easy, not only does he know his thing but he has a great facility to transmit his knowledge. After the commissioning, he was available to give us advice, always with a smile. We sure will use the services of P&S in the future, they already did our EGRG tests in 2014 which led to this Knelson/Acacia installation… Many thanks Pete!

Claude PelletierGeneral Manager, Guiro Gold Mine, Burkina Faso

News

Gravity Recovery vs. Cyanide Leaching: Choosing the Right Gold Processing Route

| Testing | No Comments
Every gold project reaches a defining technical question: how do we recover the gold from this ore most effectively and most economically? The two principal tools available are gravity concentration…

Lithium Testwork in Africa: What Junior Miners Need to Know Before Committing Capital

| Uncategorized | No Comments
Africa is in the middle of a lithium rush. From Zimbabwe's Bikita and Arcadia deposits to Mali, the Democratic Republic of Congo, and Namibia, junior miners and exploration companies are…

Why recovering fine gold matters

| Uncategorized | No Comments
In gold processing, not all gold is created equal. While coarse, visible gold is relatively easy to recover, fine gold presents a much greater challenge. Often invisible to the naked…

The Importance of Gold Deportment

| Uncategorized | No Comments
In gold processing, the phrase “know your ore” isn’t just a cliché — it’s the cornerstone of efficient and profitable operations. One of the most critical aspects of understanding your…

Knelson Concentrator – Trusted Gravity Gold Recovery Technology | Peacocke & Simpson

| Uncategorized | 2 Comments
In the world of gravity gold recovery, few technologies have earned as much global recognition as the Knelson Concentrator. For over four decades, this concentrator has been the industry benchmark,…

GRG Testwork: The Fastest Way to Understand Your Free-Milling Gold Potential

| Testing | No Comments
In modern gold recovery, the first question every mine should ask is simple:“How much gold can we recover using gravity?” Gravity Recoverable Gold (GRG) testwork provides that answer — quickly,…