RZOLV Introduces the SEGR Platform: Sequential Electrochemical Gold Recovery for the Next Era of Mine Value Creation

A staged extraction platform designed to recover copper and precious metals from refractory ores, legacy heaps, pads, and tailings while advancing non-cyanide recovery and closed-loop solution management.

The RZOLV Sequential Electrochemical Gold Recovery (SEGR) platform is positioned as a waste-to-value hydrometallurgical platform for recovering copper, gold, and critical minerals from refractory ores, spent heap-leach pads, tailings, pond sediments, and legacy process residues.

The SEGR platform is structured as a sequential electrochemical recovery architecture.

• Stage 1 uses electrochemical oxidation and pH/ORP preconditioning to prepare the target material for metal recovery.

• Stage 2 applies proprietary low-pH digestion to solubilize and recover copper ahead of the precious-metal circuit, where applicable.

• Stage 3 applies the RZOLV non-cyanide leach to recover solution-accessible gold, silver, and selected critical minerals, with barren solution reconditioning and closed-loop recycle integrated into the process design.

Investment Thesis

The mining sector is facing a convergence of pressures that create a large and urgent opportunity: legacy tailings liabilities, rising demand for copper, residual gold and silver left behind by historical processing, tightening cyanide regulation, and increasing investor scrutiny around tailings safety. Industry studies estimate 223–282 billion tonnes of global tailings stored across 29,000–35,000 tailings storage facilities, including 7,250–8,250 inactive or abandoned facilities. Gold mining alone accounts for roughly 47 billion tonnes of this inventory, containing an estimated 1,500–2,500 tonnes of residual gold, valued in the report at $160–270 billion at prevailing prices.

At the same time, copper has become one of the defining metals of electrification. The report states that global copper mine production of roughly 22–23 million tonnes faces a projected 3–6 million tonne annual shortfall by 2030–2040, with copper prices sustained above $4.00/lb reflecting medium-term scarcity dynamics. This matters because many spent gold heaps and tailings are not just precious-metal residues; they also contain acid-soluble copper that historical cyanide circuits often failed to recover.

The RZOLV thesis is therefore not simply “better leaching.” It is a platform strategy: convert legacy mine waste from a long-term environmental liability into a controlled recovery-and-remediation asset, while addressing copper scarcity, cyanide risk, and closure obligations in one integrated flowsheet.

Market Size and Addressable Opportunity

The report identifies several overlapping markets that support a large addressable opportunity. The global mining tailings management market was valued at $11.74 billion in 2024 and is projected to reach $18.36 billion by 2035. The dedicated gold tailings reprocessing segment was estimated at $1.74 billion in 2024 and is projected to reach $5.45 billion by 2034, growing at 12.54% CAGR. The sodium cyanide market for gold mining, estimated at $2.5 billion annually, represents a direct replacement opportunity for validated non-cyanide technologies.

The report’s unified market framework estimates a Total Addressable Market of $12–30 billion, including tailings management, cyanide replacement, gold tailings reprocessing, complex ore processing, critical minerals from tailings, and secondary copper from spent heaps. The Serviceable Available Market is estimated at $4–7 billion annually, while the five-year Serviceable Obtainable Market is estimated at $50–100 million per year in the base case, assuming 0.5–2% SAM capture through a licensing model.

This market is not speculative at the category level. The report notes that tailings reprocessing operations such as DRDGOLD, Pan African Resources’ Elikhulu project, and GoGold’s Parral project demonstrate that historical mine residues can support commercial recovery economics. It also states that tailings reprocessing capex is typically 50–60% lower than equivalent greenfield projects because the material has already been mined, crushed, and transported.

Unique Positioning: Not a Single-Reagent Substitute

RZOLV/JEX is differentiated by its sequential architecture. Other alternative leaching approaches have attempted to replace cyanide with another reagent. The RZOLV platform instead separates incompatible chemistries into dedicated stages and applies unique redox chemical reactions and extraction methodologies  to cost-effectively recover precious metals from difficult mineralogies.

• Stage 1 uses controlled, oxidized, low pH digestion to dissolve acid-reactive copper minerals such as malachite, azurite, chrysocolla, secondary chalcocite, and precipitated copper phases. The copper-bearing solution is then routed to copper recovery, with iron cementation as the base-case pathway and SX/EW as the commercial upgrade pathway for producing high-purity copper cathode where scale and copper tenor justify it.

• Stage 2 addresses residual cyanide risk and precious-metal recovery. The report describes an alkaline electrochemical cyanide-risk reduction step at pH >10.0–10.5, using boron-doped diamond electrodes to oxidize cyanide toward cyanate, followed only after verification by controlled low-pH RZOLV leaching for residual gold and silver recovery without introducing new cyanide.

Why Copper Recovery Is Strategically Important

The report’s central technical insight is that copper is not just a by-product opportunity; it is a process-control problem that must be solved to unlock downstream gold and silver recovery. In conventional cyanide systems, every kilogram of leached copper consumes extensive amounts of sodium cyanide, while copper cyanide species compete with gold for activated-carbon adsorption capacity.

Even in a non-cyanide platform, copper remains a major interference species. It can compete for complexing capacity, elevate oxidant demand, co-load onto recovery media, and accumulate in recycle streams. By removing copper before the precious-metal stage, RZOLV SGCR improves downstream chemistry, protects recovery media, reduces reagent burden, and creates a cleaner feed for gold and silver recovery.

The economic upside is material. The report states that spent gold heap-leach materials typically contain 0.05–0.3% acid-soluble copper. At 0.1% acid-soluble copper and 60% recovery, 100 million tonnes of material could yield approximately 60,000 tonnes of copper cathode equivalent, generating roughly $560 million in gross revenue at $4.20/lb copper.

Importantly, Stage 1 does not need to be profitable as a standalone copper operation to justify inclusion. The report emphasizes that copper removal may create value by improving gold/silver recovery, reducing reagent consumption, protecting carbon or resin performance, lowering bleed-treatment costs, and improving closure outcomes.

Sector Importance

The platform addresses three sector-level problems simultaneously.

• First, it offers a potential route to recover additional copper from secondary sources at a time when new primary copper supply is increasingly difficult, capital-intensive, and geopolitically concentrated.

• Second, it addresses the growing pressure to reduce cyanide dependency, particularly as certain jurisdictions have enacted cyanide restrictions or bans.

• Third, it reframes tailings and spent heaps from closure liabilities into metallurgical assets that can generate revenue while improving environmental endpoints.

The report concludes that RZOLV occupies a defined technical niche at the intersection of tightening tailings regulation, rising commodity prices, and growing cyanide restriction, with Stage 1 copper recovery strengthening both the economics and the chemistry of Stage 2 precious-metal recovery.

Investor Takeaway

For investors, the opportunity is a platform investment, not a single-site recovery concept. The technology sits at the intersection of critical minerals, gold recovery, mine-waste remediation, cyanide replacement, and circular mining. Its commercial appeal is driven by stacked value: copper by-product revenue, residual gold and silver recovery, reduced closure liability, reduced cyanide exposure, lower water discharge through closed-loop management, and potential licensing scalability.

The report is careful to state that all recovery ranges and economic targets remain hypothesis-level and require feed-specific validation through representative bench, pilot, and field testing. The near-term investor milestone is therefore clear: validate the flowsheet on representative materials, demonstrate copper removal and precious-metal recovery under controlled stage-gated conditions, and convert the platform from technical thesis to licensable commercial solution.

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 Disclaimer

This article is for informational, technical, and strategic discussion purposes only. RZOLV’s SCGR: Sequential Copper–Gold Recovery Platform is based on a technical study covering low-pH copper pre-leaching, copper deportment control, non-cyanide gold recovery, and closed-loop solution management for copper-gold ores, heaps, pads, and tailings. The information presented does not constitute a feasibility study, preliminary economic assessment, engineering design, environmental impact assessment, closure plan, permit application, legal opinion, investment recommendation, or guarantee of technical, environmental, regulatory, or commercial success.

All performance ranges, recovery expectations, market estimates, economic screening values, development timelines, and potential environmental or closure benefits are preliminary and hypothesis-level in nature. They require feed-specific validation through representative bench, pilot, and field testing using actual site materials. Actual results may vary materially depending on site-specific factors, including mineralogy, copper and precious-metal grades, cyanide speciation, permeability, acid consumption, impurity content, reagent consumption, solution chemistry, water balance, permitting requirements, commodity prices, and other technical, environmental, regulatory, and commercial variables.