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Role and Mechanism of Sodium Sulphide in Flotation of Oxidised Lead‑Zinc Ores
Oxidised lead‑zinc minerals (cerussite, anglesite, smithsonite, hemimorphite, etc.) have hydrophilic surfaces and cannot be directly floated with xanthate collectors. The addition of sodium sulphide sulphidises the ore, enabling subsequent adsorption of xanthates. Beyond sulphidisation and activa...Read More -
Hazardous Chemicals Management – Beware of Heat-Sensitive Decomposable Chemicals in Summer Heat
Summer heat poses multiple risks during the storage, transport, and use of chemicals that readily decompose upon heating. These risks include: 1. Fire and explosion hazards Some chemicals release significant heat and flammable gases when thermally decomposed. For example, potassium borohydride an...Read More -
Silicon Brains in the Field: How AI Technology is Breaking the Traditional Exploration “Blind Box Curse” in Africa and Latin America
In global mining circles, a brutal truth known as the “blind box curse” has long persisted: from the initial discovery of mineralization to countless trial-and-error drillings and feasibility studies, it takes an average of 15 to 20 years to bring a mine into actual production. Making...Read More -
Brazil’s 2050 Ambition: A Comprehensive Analysis of the New National Mining Plan and the Battle for a 12.2% Critical Minerals Share
For a long time, when discussing the ultimate “trump cards” in the global critical minerals and electric vehicle supply chains, global attention has been fixated on the cobalt belts of Central Africa, the lithium deposits of Chile and Australia, or the nickel mines of Indonesia. Howe...Read More -
North American Duel: How the US and Canada’s Dual “Accelerator” Moves Reflect Western Supply Chain Anxiety
For a long time, terms like “de-risking” and “supply chain resilience” have been omnipresent in Western geopolitical rhetoric, but they frequently remained confined to policy statements. However, on July 7, 2026, the North American continent deployed a highly synchronized ...Read More -
Breaking Africa’s “Extraction Without Refining” Curse: The Industrial Revolution at the Kamoa-Kakula Copper Complex in the DRC
For decades, the African continent has been plagued by the “resource curse” within the global division of mining wealth. Despite possessing the world’s richest, highest-grade mineral belts, major resource nations in Central and West Africa have consistently served as mere raw-material...Read More -
New Gold Resources Discovered at Four Mining Districts in Saudi Arabia, Totalling Over 7.8 Million Ounces!
Saudi Arabian Mining Company (Ma’aden) has announced the addition of over 7.8 million ounces (approximately 242.6 tonnes) of gold resources from four major mining districts within Saudi Arabia. These districts include currently operating mines, early-stage exploration areas, and newly d...Read More -
Column on Mineral Processing Technology (Part II)
Pulp Density: The “Hidden Variable” Affecting Mineralization Efficiency and Froth Quality The effect of pulp density on flotation follows an “inverted U-shaped” curve: if the density is too low, mineralization efficiency decreases; if it is too high, the bubbles become ove...Read More -
Gold Investment – Gold Deposit Types and Global Distribution
Global gold resources are highly concentrated. According to USGS 2024 data, over 90% of the world’s gold reserves are held by 18 countries, including Australia, Russia, and South Africa. By continent, Oceania holds the largest reserves at 13,100 tonnes (about 22.20% of the global total), followed...Read More -
Mineral Processing Column – Flotation Parameters in Practice
Introduction: Flotation is often called the “soul” of mineral processing. With the same ore and the same equipment, proper parameter adjustment can lift recovery from 75% to 90%; get it wrong, and even concentrate grade will suffer. This article does not revisit flotation theory (cove...Read More -
Gold Distribution in Africa – A “Stone-to-Gold” Story Unfolding
Against a backdrop of geopolitical tensions and risk-averse sentiment, international gold prices have remained persistently high, repeatedly breaking historical records. For investors staring at screens, this is a digital rally on candlestick charts. But for the African continent, thousands of mi...Read More -
Green, Transparent, and Cost-Effective: The Deep ESG Evolution in African Mining in 2026
In the global critical minerals supply chain of 2026, ESG (Environmental, Social, and Governance) has completely shed its past reputation as mere corporate public relations fluff. It has evolved into a mandatory market access ticket and an unevadable cost item that determines the survival of mi...Read More
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