Dongguan Yingcai New Materials specializes in the R&D and production of green cyanide-free gold extraction reagents, applicable to gold mines, gold-bearing tailings, precious metal recovery from electronic waste and other scenarios.
Free of cyanide compo
Against the industry backdrop of tightening environmental supervision over domestic mines and the nationwide promotion of green mine construction, the traditional cyanide gold leaching process faces numerous practical challenges including strict high-risk chemical control, high wastewater treatment costs and heavy occupational safety burdens. Many mineral processing enterprises are in urgent need of low-risk, easily implementable cyanide-free gold leaching solutions.Headquartered in the Pearl River Delta new materials R&D and manufacturing base, Dongguan Yingcai New Materials Technology Co., Ltd. focuses on the field of clean reagents for precious metal mineral processing. Drawing on years of formula iteration and on-site mine test experience, we independently developed a full range of eco-friendly cyanide-free gold extraction reagents, delivering a new green gold leaching route that balances safety, economic efficiency and regulatory compliance for all types of gold mines and precious metal recycling projects.
I. Yingcai New Materials: A Local R&D Enterprise Focused on Cyanide-Free Mineral Processing Reagents
Dongguan Yingcai New Materials integrates formula R&D, standardized production and on-site technical support for mines. We operate an in-house physical and chemical testing laboratory with complete procedures for raw material screening and finished product performance testing, and control the entire production process in strict accordance with ISO quality and environmental management systems.
Our technical team consists of professionals with extensive experience in mineral processing and fine chemical engineering. We continuously optimize reagent formulations based on ore properties from various regions across China, and develop customized reagent grades for diverse scenarios including oxidized ores, sulfide ores, fine-grained gold-bearing tailings and precious metal recovery from electronic waste. Unlike universal single-type reagents, we can adjust the formula system according to the composition of customers’ ore samples.
Rejecting the extensive production model of general chemical products, the company adheres to the service philosophy of "testing each mine sample and adjusting formulas on demand". We provide integrated support including sample testing, on-site process guidance and after-operation maintenance for small and medium-sized mines, precious metal smelters and renewable resource recycling enterprises nationwide. Our products are supplied to mining areas in multiple provinces of China, and we also carry out technical supply cooperation with small mineral processing projects in Southeast Asia. We have built a solid industry reputation through consistent quality control and practical technical services.
II. Core Formula Logic of Yingcai Eco-Friendly Gold Extraction Reagents: Mild and Low-Toxicity, Compatible with Existing Production Lines
Yingcai eco-friendly gold extraction reagents adopt a modified multi-chelate composite system as the effective leaching component. They contain no cyanide, highly accumulative heavy metals or other high-risk substances throughout the formula. The reagents feature stable physical and chemical properties, resist decomposition and volatilization under normal-temperature storage, and generate no toxic irritant gases, greatly reducing the burden of workshop operation protection and special hazardous chemical management.
In terms of on-site adaptability, this series of reagents boasts strong compatibility. Most original heap leaching, tank leaching, CIP and CIL carbon-in-pulp production lines do not require large-scale equipment renovation. Gold leaching operations can be carried out using the original auxiliary materials for pH adjustment, cutting enterprises’ technical transformation investment and production downtime for commissioning. The reagents dissolve at a moderate rate, and the leaching cycle can be optimized compared with traditional cyanide processes. Under certain ore conditions, the operation period can be moderately shortened to improve site turnover efficiency.
For environmental disposal, waste water generated after reagent reaction has a simple composition. After conventional neutralization and precipitation treatment, most pollutant indicators in the water can meet current national standards for mine wastewater discharge. Tail residues carry no risk of residual cyanide contamination, simplifying the solid waste disposal process. To a certain extent, the reagents reduce enterprises’ daily environmental operation and hazardous waste disposal expenses, and ease pressures arising from environmental inspections.
III. Performance in Multiple Application Scenarios, Suitable for Complex Domestic Ore Resources and Recycling Industry
Gold ore resources in China vary widely by type, and the proportion of complex refractory ores with high sulfur, arsenic and copper content is rising year by year. Universal cyanide-free reagents often suffer from unstable leaching performance and excessive reagent consumption. Drawing on hundreds of bench and pilot test data of ore samples, Yingcai develops segmented reagent grades tailored to different ore characteristics:
Primary oxidized gold ores: The reagents deliver good selective gold leaching capacity and strong chelating and dissolving performance for exposed native gold and fine encapsulated gold. Under identical process conditions, the gold leaching recovery rate can reach a level close to that of conventional cyanide processes.
Complex sulfide gold ores: Formulated with synergistic stabilizer components to mitigate interference from sulfur and copper impurities during gold leaching, reduce invalid reagent consumption and stabilize production indicators.
Secondary recovery of gold-bearing tailings and residues: Suitable for low-grade ore leaching with low cost, facilitating comprehensive recovery and higher utilization efficiency of mineral resources.
Precious metal extraction from electronic waste: Adapted to hydrometallurgical gold recovery from circuit boards and gold-containing leftover materials. The waste liquid is easy to treat, complying with environmental production requirements of renewable resource enterprises.
In addition, the storage and transportation of the reagents follow standards for ordinary chemical products. Complicated approval procedures such as special filing and escorted transportation for highly toxic chemicals are not required, simplifying corporate procurement and warehouse management and lowering safety management costs across all links.
IV. Full-Set Supporting Technical Services Beyond Reagent Supply
More than just a reagent supplier, Yingcai New Materials establishes a comprehensive supporting technical service system for mines to cut customers’ trial-and-error costs:
Free ore sample bench testing: After customers send ore samples, our laboratory completes composition analysis and comparative leaching tests, and issues customized reference schemes for reagent dosage, concentration and leaching duration.
On-site technical guidance: For enterprises in the early stage of commissioning, we assign technical specialists to stay on-site to debug feeding regimes and pH control parameters, matching local water quality and ore properties.
Continuous formula iteration and optimization: If production indicators fluctuate during long-term mine operation, fine-tuning of reagent components can be conducted according to actual on-site working conditions to sustain stable long-term production.
Reference schemes for environmental disposal: We provide practical guidance on simple treatment of supporting waste water and tail residues, assisting enterprises in completing environmental accounting documents.
V. Embracing the Trend of Green Mines to Build a Sustainable Development Path for Mineral Processing Industry
The green transformation of the mining industry has become a long-term trend. Multiple regions have gradually strengthened control over the use of highly toxic hazardous chemicals, making cyanide-free eco-friendly gold extraction a key direction for mineral processing upgrading. Dongguan Yingcai New Materials centers its R&D on three core orientations: low-hazard reagents, efficient gold extraction and simplified compliance. We refrain from overstating product performance and judge effectiveness solely based on measured data of ore samples to objectively match customers’ production expectations.
In the future, the company will continuously increase investment in clean mineral processing reagent R&D, deepen school-enterprise cooperation on mineral processing technology, expand the product line of special reagents for segmented ore types, and further optimize the comprehensive consumption cost of reagents to balance mines’ economic benefits and ecological protection demands.
Gold concentrators and precious metal recycling enterprises nationwide are welcome to send ore samples for testing and cooperation negotiation. With mature cyanide-free gold extraction technology, Yingcai New Materials stands ready to assist the industry in achieving a smooth green upgrade and realizing coordinated development of mine production and ecological conservation.
2026-07-02
盈彩新材料Ying cai
