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In the gold mining industry, finding low-cost, high-efficiency gold extraction processes has always been a key driver of industry development. With the gradual depletion of high-grade gold ore reserves, the development and utilization of low-grade gold ore (typically referring to gold grades in the range of 0.5~3 g/t), as well as tailings and waste rock, has indeed become a focus of industry attention. Heap leaching gold extraction, with its low cost and high efficiency, provides a feasible path for the effective utilization of low-grade gold ore. Let's explore heap leaching gold extraction technology and the secrets to its low cost and high efficiency.Details>>
This year, Papua New Guinea revised its Mining Act, strictly limiting foreign investment in placer gold mining, allowing only domestic citizens to participate in the industry, while encouraging foreign investment through large-scale mining projects. This policy has once again fueled the placer gold boom. This article will focus on placer gold, introducing the beneficiation process!Details>>
The international gold market is currently showing a fluctuating upward trend. As of 2025, New York gold futures prices are expected to stabilize in the range of $3300-3400 per ounce, while domestic Shanghai gold spot prices are expected to remain at 760-780 yuan per gram. Gold prices directly determine the economics of gold mining and beneficiation, and are a key indicator for defining the "mineable grade." Current gold prices present a crucial window for mining companies to expand capacity and obtain higher profits, representing a significant economic incentive and strategic opportunity. Currently, the utilization rate of whole-mud cyanidation carbon-in-pulp (CIP) technology for gold beneficiation can reach approximately 50%, making it the primary beneficiation technology for low-grade, fine-grained disseminated gold ores.Details>>
Carbon-pulse gold extraction is a common technology in gold extraction processes. It primarily utilizes a closed-loop system of "leaching-adsorption-desorption-regeneration" to achieve efficient gold recovery and resource recycling. This article will provide a detailed introduction to the carbon-pulse gold extraction process from multiple perspectives!Details>>
With the increasing scarcity of gold resources, oxidized gold ore has become a primary development target for investors. Because oxidized gold ore is a special type of gold ore formed under supergene geological processes, its gold occurrence is complex and its ore properties are unique, making gold extraction relatively difficult. This article will introduce the properties of oxidized gold ore and several common gold extraction technologies.Details>>
The carbon slurry gold extraction process is to enrich and extract gold by adsorbing gold cyanide complexes in the ore pulp with activated carbon. In the process of gold extraction, the stable operation of the equipment is the basis for ensuring the efficient implementation of the process. Standardizing the maintenance and maintenance of carbon slurry gold extraction equipment will not only help improve gold production efficiency and reduce production costs, but also meet the inevitable requirements of sustainable development of the gold industry.Details>>
After a long period of development, the global mining industry has reached an astonishing scale of tailings stockpiles. According to statistics, the cumulative stockpiles of tailings in the world exceed 500 billion tons, and the precious metal resources contained in them are of great value. Taking gold as an example, the average grade of gold in global tailings is about 0.3-0.8g/t. According to the current gold price, the potential economic value exceeds 100 billion US dollars. Therefore, tailings are not waste, but an "invisible mine" that needs to be developed urgently. In addition to gold, what other minerals can be recycled in tailings? This article will mainly focus on the reselection of precious metals in tailings, including methods for reselecting precious metals in tailings and types of reselected precious metals.Details>>
Primary gold ores exposed to the air undergo weathering, gradually breaking into gold grains and rock debris. Under the transportation of external forces, the heavier particles accumulate on hillsides, riverbeds, and the shores of lakes and beaches. When these sediments have development value, they become placer gold ores. The beneficiation operation of placer gold ore can be divided into preparation operation and separation operation. Here, a brief introduction to the commonly used placer gold ore beneficiation equipment is provided.Details>>
This year, the revised Mining Act of Papua New Guinea strictly restricts foreign investment in gold placer mining, allowing only citizens of the country to engage in the industry, while encouraging foreign investment to enter the market through large-scale mining projects. The introduction of this policy has once again pushed gold placer to a fever. In this article, we will focus on gold placer and learn about the process of gold placer beneficiation!Details>>
Gravity separation is one of the main means of rock gold ore beneficiation, especially suitable for processing coarse-grained and high-grade rock gold ore. In the beneficiation process, grinding particle size, as a key factor in the gravity separation process, directly determines the dissociation and gravity separation efficiency of minerals. So in the gravity separation process, what are the requirements of different gravity separation methods for particle size? In this article, we will analyze and answer from multiple angles!Details>>
Recently, the price of gold has fallen sharply, but it has no impact on gold mine development. As easily exploitable rich ore resources gradually decrease, poor ores, fine-grained embedded ores, and complex multi-metallic paragenesis ores have become the main development force. For this type of gold mine, flotation gold extraction is often used to achieve recovery.Details>>
Flotation is one of the commonly used ore dressing technologies in gold ore dressing plants. It is suitable for the dressing of various complex gold ores, especially in the treatment of difficult-to-select gold ores such as fine-grained intercalation and polymetallic paragenesis. In the flotation process, reagents are the key. The hydrophobicity and hydrophilicity of the mineral surface are changed by adding reagents to separate them. Among them, frothers, as the key medium for constructing the gas-liquid interface, directly affect the generation and stability of bubbles and the fluidity of the foam layer, and then determine the core indicators such as gold recovery rate and concentrate grade. This article will introduce the commonly used frothers in gold mines.Details>>
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