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The Lunar New Year break was barely over. Xinhai Mining Research Institute’s labs were back in full swing almost immediately. The festive calm quickly gave way to a hive of focused activity. Researchers returned early and turned their attention to the test benches. They calibrated reagents, analyzed data, refined processes, and plunged into a new round of beneficiation pilot research.
At Xinhai, every moment of focus and every round of iterative debugging at the test bench means more than just technical exploration. It reflects a sincere commitment to the trust that mine owners worldwide place in us. As the technological core of Xinhai Mining, our Research Institute remains true to its founding principle: data-driven decision-making. Deeply rooted in beneficiation pilot testing, we completed over 230 projects in 2025. We mastered the separation characteristics of more than 70 ore types. With concrete test data and tangible results, we deliver tailored beneficiation solutions. This ensures every step—from pilot testing to commercial production—is scientifically validated. As a result, every ton of ore can realize its maximum value.
At its core, beneficiation is about understanding an ore’s unique properties. We never rely on guesswork. Instead, we base our work on data from countless rigorous tests. Through years of dedicated research, Xinhai’s Research Institute has honed its craft to a high level. We now have full mastery of four core beneficiation technologies: flotation, magnetic separation, gravity separation, and cyanidation. Whether dealing with common ores like gold, silver, copper, and iron, specialty ores such as lead-zinc, fluorite, and pyrite, or refractory ores with complex compositions and high separation difficulty, we provide precise analysis and scientific testing. For each ore type, we define the optimal separation logic using hard data.
This expertise comes from our researchers’ relentless study of every ore, precise control of each process parameter, and rigorous analysis of all test data. We never treat clients’ projects as mere trial runs. Every process solution we propose goes through multiple rounds of comparative lab tests. Only then do we finalize the optimal workflow based on comprehensive data. This approach allows mine owners to avoid flawed processes from the very beginning and significantly reduces trial-and-error costs.
Over the past year, our team worked tirelessly and completed more than 230 beneficiation pilot projects. Each one represents a targeted technological breakthrough and lays a solid foundation for subsequent commercial production. These projects included process optimization for long-term clients (improving concentrate grades and recovery rates), ground-up process design for new mine owners (tailored to their ore’s unique characteristics), and cost-effective, high-efficiency solutions for complex low-grade, multi-component ore deposits. Every project concluded with concrete, actionable data that clearly demonstrated our results.
Across all projects, we adhere strictly to data-driven decision-making. Our standardized workflow for ore samples is straightforward and consists of three main stages.
First, we conduct a comprehensive compositional analysis. This step accurately measures ore grade, impurity content, mineral composition, and other key metrics. It gives us a complete understanding of the ore’s fundamental properties.
Second, we design custom pilot tests. We develop multiple test protocols, including gradient tests for grind fineness (ranging from 60% to 85% passing 200 mesh), precise proportioning of collectors and depressants, and combined tests for separation flows and equipment pairing. All options are tested and cross-compared repeatedly.
Third, we finalize the process using data. We refine the optimal scheme based on detailed test results and define clear KPIs (concentrate grade, recovery rate, yield). This gives my owners a transparent view of their project’s economic potential.
Case1：In a 2025 lead-zinc ore pilot project, the raw ore contained 1.2% Pb and 3.5% Zn. By adjusting flotation reagent ratios and optimizing process flows, we achieved a lead concentrate grade above 60%, a zinc concentrate grade above 50%, and an overall recovery rate exceeding 80% for both metals. These results provided our client with precise technical guidelines for their commercial production.
Case2： “We took on a high-arsenic gold ore project that the industry widely regards as refractory,” our technical director recalled. “Conventional cyanidation only achieved a gold leaching rate below 60%. We ran three rounds of small-scale tests, redesigned the pretreatment process, and eventually raised the leaching rate above 92%. Later, the client told us they recovered their entire investment in just two years by building the plant according to our design.”
Our ultimate goal is to transform pilot test results into successful commercial production, convert lab data into real-world production KPIs, and help mine owners achieve genuine improvements in quality and efficiency. We recognize that lab-scale data can shift under commercial conditions due to on-site variables such as operating conditions, equipment performance, and raw material fluctuations. That is why we uphold our core service philosophy: end-to-end support from pilot testing through to commercial production. We ensure seamless integration of pilot results with on-site operations and maintain consistent alignment between commercial KPIs and lab data.
Once a test scheme is finalized, Xinhai can carry out pilot plant tests and deploy technical specialists to provide full on-site support during commercial production. They make real-time adjustments according to actual field conditions.
As a vital part of Xinhai Mining’s full industry chain, the Research Institute’s test results integrate seamlessly with our other services: beneficiation plant design, custom equipment supply, and on-site installation and commissioning. This creates a true one-stop mining engineering solution that covers testing, design, equipment, installation, and operation & maintenance. Mine owners no longer need to coordinate with multiple suppliers or worry about mismatches between test schemes, equipment, and construction. From project planning to full production, they receive end-to-end, one-stop professional services—and true peace of mind for their beneficiation projects.
In just one year, we have mastered beneficiation processes for over 70 ore types and accumulated more than 230 pilot test case studies. At Xinhai Mining, we stand firm with data as our foundation and technology as our backbone. We fully align with the unique needs of mine owners and their projects, and we curate the optimal solution for every ore sample. If you have ore that requires beneficiation pilot testing, please reach out to us today!
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