Post: RZOLV Brings a Modern Makeover to CIP/CIL Gold Processing

RZOLV - Staff writer - November 23, 2025

For more than a century, the world’s gold mines have relied on cyanide-based CIP and CIL circuits to extract gold from finely ground ore. These systems are workhorses of the mining world—but they were engineered around a chemistry invented in the late 1800s.

Today, as environmental pressure mounts and ore bodies become more complex, mines are facing rising costs, exhaustive permitting hurdles, and real social resistance to cyanide use.

A new Canadian clean-tech solution—RZOLV™—is giving this old process a surprisingly cost-effective upgrade.

A Small Change with Big Results

RZOLV is a water-based, non-cyanide leaching reagent designed to drop directly into existing CIP/CIL tanks. No construction, no redesign, no shutdown.

In an industry where capital projects can take years, RZOLV offers something rare: a chemistry-only upgrade that improves performance without changing the plant.

That solution is RZOLV™, a non-cyanide, water-based leaching reagent engineered to work inside the very same CIP/CIL circuits that have been the backbone of gold extraction for more than 100 years.

And the surprising part? - RZOLV doesn’t just replace cyanide—it improves the economics of the entire operation.

Upgrading the World’s Most Common Gold Plant Without Rebuilding It

One of the most remarkable features of RZOLV is that it is designed to drop directly into existing CIP/CIL circuits. Plants do not need to rebuild tanks, redesign the layout, or overhaul carbon systems. For operators, this means:

• Minimal capital cost

• No new permitting footprint

• No shutdowns for major renovations

• Immediate improvement in ESG compliance

• Immediate elimination of detoxification costs

In an industry where new capital projects can take years to permit, RZOLV offers something rare: a chemical innovation that unlocks value without requiring a physical expansion.

Why Gold Mines Are Seeking a Cyanide Alternative

Cyanide works—but it has limitations that impact economics:

• High Detoxification Costs

  • Every tonne of cyanide slurry leaving a tank must be detoxified, monitored, and reported. These costs grow annually as regulations tighten.

    
    

• Poor Performance on Certain Ores

  • High-sulfide, carbonaceous, and partially oxidized ores slow cyanide leaching or trap dissolved gold.

    
    

• Public and Regulatory Pressure

  • Communities and governments increasingly oppose cyanide use, creating delays, restrictions, and uncertainty.

    
    

• Growing Insurance and Compliance Burden

  • Mines face higher financial assurance requirements when cyanide is used

  • RZOLV answers all four issues in one step.

RZOLV: A Cleaner, Faster, More Effective Leaching System

RZOLV’s breakthrough lies in its oxidative–reductive chemistry, which dissolves gold rapidly—even in mineralogies that choke cyanide. In CIP/CIL circuits, operators should experience:

• Faster gold dissolution - Less residence time is needed in the tanks, improving throughput.

• Higher recoveries on difficult ores - RZOLV remains effective on high-sulfide ores, mildly refractory feeds, partially oxidized ore blends

• Lower reagent consumption - Cyanide loss to side reactions—especially with sulfides—is a major cost in traditional circuits.RZOLV avoids most of these losses, keeping OPEX predictable and stable.

• Easy carbon loading - RZOLV forms a stable gold complex that adheres efficiently to activated carbon, just like cyanide—no new equipment needed.

• No costly detox circuit required - This alone can save mines millions of dollars annually.

The Economic Advantage: More Gold, Less Cost, Lower Risk

Switching to RZOLV can materially improve the bottom line of a CIP/CIL operation.

• Lower Operating Cost

  • No cyanide detox system

  • Reduced analytical monitoring

  • Lower compliance costs

  • Less cyanide destruction reagent

  • Lower insurance premiums

  • Lower mine closure/remediation costs

    
    

• Higher Gold Recovery

  • If RZOLV recovers even 1–3% more gold on previously problematic ores, the economic value can dwarf the cost of the reagent.

    
    

• Reduced Environmental Liability - No cyanide means:

  • less regulatory risk

  • smoother permit renewals

  • improved ESG ratings

  • friendlier community relations

    
    

• Stable Supply Chain - Cyanide production and transport are tightly regulated. RZOLV’s ingredients are safer to ship, store, and handle.

  
  

• A Modernized CIP/CIL Plant Without the Modernization Cost - The genius of RZOLV isn’t just its chemistry—it’s the fact that it lets mines upgrade performance without upgrading infrastructure. For existing operations, it offers:

  
  

  • A cleaner process

  • Higher efficiency

  • More predictable outcomes

  • Lower costs

  • Better environmental performance

For new mines, it removes the largest public objection to gold processing: cyanide.

In a sector under intense pressure to modernize, decarbonize, and improve community trust, RZOLV gives gold producers a way forward that is technically advanced yet operationally familiar.

Conclusion: A New Chapter for a Century-Old Process

CIP and CIL circuits have been remarkably resilient technologies—they’ve served the gold industry for generations. But they were built around a reagent from the 1880s, in a world with very different expectations for industrial safety and environmental responsibility.

RZOLV represents the next step in that evolution:

a safer, cleaner, more cost-effective leach system that strengthens the economics of CIP/CIL without altering the plants themselves.

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Disclosure and Cautionary Statement

This article has been published by RZOLV Technologies Inc. as part of its corporate communications and investor relations activities and reflects the views and opinions of management as of the date of publication. It is provided for general informational purposes only and does not constitute investment advice, an offer to sell, or a solicitation to buy securities. Certain statements in this article may constitute forward-looking information within the meaning of applicable Canadian securities laws and are subject to risks, uncertainties, and assumptions that could cause actual results to differ materially. Readers should not place undue reliance on such statements. The Company’s officers, directors, and insiders may hold securities of RZOLV and therefore have a financial interest in the Company’s performance. Readers are encouraged to review RZOLV’s public disclosure documents available on SEDAR+ for a discussion of material risks and assumptions. Neither the TSX Venture Exchange nor its Regulation Services Provider has reviewed or approved the contents of this article.