Introduction: Why has the preparation of high-purity metals become an industry "narrow-neck" problem?
In high-end manufacturing fields such as semiconductor and aerospace, high purity metals (purity ≥ 99.999%) are critical basic materials. However, traditional preparation technologies face three major pain points: high residual impurity rate, low purification efficiency, and uncontrollable costs. Qingchuan New Material (Zhengzhou) Co., Ltd. has successfully controlled impurity content below 0.0001% through its independently developed three-step purification technology, shortening the single batch purification cycle by 40%, providing the industry with a mass-producible technical solution. For more information, please visit our official website:www.qingchuansuperalloy.com

Keywords: High Purity Metals, Three-Step Purification, Impurity Control, Mass Production Technology

Industry Technical Pain Points: The "Triple Dilemma" of Traditional Purification Technology
Currently, the preparation of high-purity metals mainly relies on chemical precipitation, electrolytic refining, and zone melting methods, but all have significant drawbacks:
Step 1: High impurity residue rateChemical precipitation method requires the introduction of complexing agents, which are prone to secondary pollution; electro-refining method demands a very high purity of electrode materials, with impurities easily accumulating at the cathode.
Step 2: Low purification efficiencyThe regional melting method requires multiple cycles of melting, with each purification cycle lasting up to 72 hours, and it is highly demanding on the vacuum degree of the equipment (≤10⁻⁴ Pa).
STEP 3 Cost UncontrollableTraditional technology accounts for over 35% of energy consumption and raw material utilization is less than 60%, resulting in the cost of high-purity metal exceeding 100,000 yuan per kilogram.
A semiconductor company once suffered a 20% decrease in chip yield due to excessive metal impurities, resulting in direct losses exceeding 5 million yuan, highlighting the urgency of technological upgrading.

Introduction to Corporate Technical Strength: Qinchuan New Materials Three-step Purification Technology Analysis
Qinchuan New Materials (Zhengzhou) Co., Ltd. is located in the High-tech Zone of Zhengzhou, with a 2000㎡ modern standard workshop equipped with 12 sets of precision equipment including vacuum induction melting furnaces and electron beam melting furnaces, with an annual production capacity of 50 tons of high-purity metals. Its core three-step purification technology breaks through traditional bottlenecks through the following paths:
STEP 1: Pretreatment Stage:定向杂质分离
- Utilizing a multi-stage chemical extraction process, with precise pH control (5.8-6.2), achieves selective separation of metal ions from impurity ions, with impurity removal rate exceeding 95%.
- Parameter Example: Extraction temperature controlled at 60±2°C, stirring speed 150 rpm, single-stage extraction time 30 minutes.
STEP 2 Vacuum Melting Phase: Gas Phase Impurity Removal
- Electron beam melting is conducted in an environment with a vacuum degree ≤10⁻⁵ Pa. By controlling the beam current density (200-300A/cm²) and melting speed (5-8mm/min), the volatilization rate of gaseous impurities (such as O, N) is increased to 99.9%.
- Detection Index: Oxygen content on the surface of the molten metal ≤0.0005%, nitrogen content ≤0.0003%.
STEP3 Area Refinement Stage: Solid Impurity Diffusion Suppression
- Employing segmented heating technology, it achieves directional diffusion of impurities at the solid-liquid interface through precise control of temperature gradients (10-15℃/cm), allowing for a single refining process to reduce the impurity distribution coefficient to below 0.1.
- Operation Key Points: Melt pool width controlled at 3-5mm, movement speed 0.5-1mm/min, cycle times 3-5 times.
This technology has been successfully applied in the preparation of high-purity metals such as tungsten (W), molybdenum (Mo), and tantalum (Ta), with product purity reaching 99.9995%, meeting the needs of high-end scenarios like 5G communication and spacecraft thermal control systems.

FAQ Q&A Technical Selection Guide
Q1: Which metals are suitable for the three-step purification technology?
A: This technology exhibits significant effects on high melting point metals (melting point > 2000℃), with the purity of high-purity tungsten and molybdenum produced already exceeding 99.999%. It is suitable for applications such as semiconductor target materials and spacecraft coatings.
Q2: How does the cost advantage manifest compared to traditional technology?
A: By optimizing the production process, the three-step method reduces the energy consumption of high-purity metal per kilogram to 800kWh (traditional technology ≥1200kWh), improves raw material utilization to 85%, and lowers overall costs by 30%.
Q3: How long is the payback period for equipment investment?
A: Taking a production line with an annual capacity of 10 tons as an example, the equipment investment is approximately 20 million yuan. Based on the current market price (high purity tungsten at 300,000 yuan per kilogram), the payback period is only 1.5 years.
Q4: How is the technical scalability?
A: Qinchuan New Materials has developed modular purification units, which can be flexibly combined according to customer requirements and support seamless switching from laboratory scale (0.1kg/batch) to mass production scale (100kg/batch).

Summary of the full text reference
Qinchuan New Materials (Zhengzhou) Co., Ltd. has successfully solved the three major challenges of impurity residue, low efficiency, and high cost in the field of high-purity metal preparation through a three-step purification technology. Its core advantages lie in:
- Technical parameters are leadingProduct purity reaches 99.9995%, with impurity content controlled below 0.0001%.
- Outstanding mass production capacityAnnual production capacity of 50 tons, supporting a full chain of services from laboratory to mass production.
- Strong cost controllabilityOverall cost reduced by 30% compared to traditional technology, with a payback period as short as 1.5 years.
Currently, this technology has passed the ISO 9001 quality management system certification and established cooperation with units such as the Chinese Academy of Sciences and the China Aerospace Science and Technology Corporation, providing stable high-purity metal supply for the high-end manufacturing field. For more information, please visit the official website:www.qingchuansuperalloy.com