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The major achievements of the project include the construction of a 500,000-ton multi-metal complex industrial demonstration project that meets the nationally determined treatment capacity index; under the condition of a concentrate grade of more than 25%, the recoveries of copper, gold, and other major metals will reach 98.5%. the above. It was demonstrated that sodium-alkali desulfurization method was used to re-treat the acid-generating tail gas, and the emission concentration of sulfur dioxide was far lower than the national standard. At the same time, sodium sulfite, a by-product with a high added value, could also be produced.
Successful implementation of multi-metal capture results
Shandong Dongying Fangyuan Nonferrous Metals Co., Ltd. undertook the “Eleventh Five-Year Plan†national science and technology support plan project—the development of multi-metal capture technology for oxygen blowing and helium production has achieved a number of important achievements. The company has developed a multi-metal integrated extraction equipment and process with international leading level, has filed 5 invention patents and 11 utility model patents, and has signed technology transfer agreements with 5 companies or reached cooperation intentions, and succeeded in foreign countries. Conversion implementation.