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Carlin, Nevada, and the development of thiosulfate leaching technology for preg-robbing carbonaceous ores and as an alternative lixiviant to cyanide. Dr. Wan’s efforts resulted in the granting of six U.S. patents authored by her on gold leaching and gold recovery processes.

Dr. Wan was truly a kind and respectful person in both her professional and private lives. Her colleagues will never forget her compassion, pleasant personality, excitement for researching new processes, and boundless enthusiasm and energy. She taught all of us valuable life lessons through her dedication and commitment to excellence and her enduring passion for science and engineering. Rong-Yu never dwelled on obstacles she faced in her life and career, always conquering challenges to excel in personal and professional development. Dr. Wan is survived by husband Ke-Zhong Wang, son Joseph Wang and his wife Flora, and grandchildren Adeline and Andrew.

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