Certified Patent Eco-Friendly Extraction of Sulfuric Acid and Metal Alloys from Steel Waste

GWDL's stainless steel pickling wastewater resource treatment technology has obtained invention patent authorization from the State Intellectual Property Office. Through an innovative acid concentration crystallization-high temperature reduction process, this technology realizes the recycling of sulfuric acid in wastewater and the efficient extraction of nickel-chromium-iron alloys, demonstrating the enterprise's core technological breakthrough in the field of industrial hazardous waste resource utilization.