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Ore dressing reagents are one of the indispensable and important tools in the field of mineral processing. Such reagents can improve flotation or magnetism by changing the characteristics of the ore surface. The application of mineral dressing reagents can improve the grade of ore, reduce pollution and energy consumption, etc., which is of great significance.
In recent years, with the increasing depletion of mineral resources and the proposal of the concept of high value-added, low energy consumption and low emission mineral mining, many new innovative technologies and new materials have emerged in the field of mineral dressing reagents, such as organic reagents and biological reagents. The development and application of these new mineral dressing reagents can not only effectively improve the grade and separation rate of ore, but also reduce toxicity and pollution, and contribute to the development of the environmental protection industry.
It can be said that mineral dressing reagents have broad application prospects and market prospects, and are one of the indispensable and important tools in the field of mineral processing. We should actively promote and use such reagents, promote the upgrading and improvement of mineral dressing technology, and promote the efficient utilization of mineral resources and the concept of environmental protection and sustainable development.
Mineral processing reagents are an indispensable and important tool in the field of mineral processing. They significantly improve the efficiency of flotation or magnetic separation by changing the surface characteristics of ore. With the increasing depletion of global mineral resources and the popularization of the mining concept of "high added value, low energy consumption, and low emissions", the innovative technology and new material research and development of mineral processing reagents have become the focus of the industry. In recent years, the emergence of new reagents such as organic reagents and biological reagents has not only greatly improved the ore grade and recovery rate, but also reduced the toxic pollution of traditional reagents to the environment, providing key technical support for the green transformation of the mineral processing industry.
Although traditional mineral processing reagents (such as yellow medicine, black medicine, etc.) have stable sorting efficiency, they generally have the problems of high toxicity and difficulty in degradation. Long-term use is prone to water pollution and ecological damage. For example, the use of cyanide-containing reagents in gold mineral processing has caused many environmental accidents. New agents achieve breakthroughs in the following directions:
Organic agents: such as environmentally friendly chelating agents, which selectively adsorb target metal ions, reduce impurity entrainment, and improve the grade of concentrate (such as copper ore grade can be increased from 20% to 30%);
Biological agents: using microbial metabolites (such as biosurfactants) to replace chemical agents, the degradation rate can reach more than 90%, and the sorting efficiency is close to that of traditional methods.
The research and development of new agents is closely linked to the principles of green chemistry:
Low toxicity: For example, flotation agents based on citric acid can be completely biodegraded, and the toxicity is only 1/10 of that of traditional agents;
Energy saving: Some agents can react at room temperature to reduce heating energy consumption (such as a 15% reduction in energy consumption in the flotation process of a certain iron ore);
Resource recycling: extracting effective ingredients (such as lignin sulfonate) from industrial waste to achieve high-value utilization of waste.
These technologies have been successfully applied in many mines in China. For example, after a lead-zinc mine adopted biological agents, the heavy metal content of tailings decreased by 40%, while the silver recovery rate increased by 8%. International trends also show that the global green mineral processing agent market size will exceed US$5 billion in 2023. with an annual growth rate of 12%. In the future, with the combination of intelligent sorting (such as AI agent ratio optimization) and nano-agent technology, the performance of agents will be further improved.
The promotion of new mineral processing agents is not only a technological upgrade, but also a practice of the "dual carbon" goal. Through policy incentives (such as environmental protection tax incentives) and industry-university-research cooperation, the industry transformation can be accelerated, and ultimately a win-win situation of efficient resource utilization and ecological protection can be achieved.
