In November 2019, we partnered with Shanghai Yaohua Platinum Products Co., Ltd. Their palladium refining and waste gas treatment system processes 10–15 kg per batch. It uses glass reaction vessels and storage tanks. This ensures full visibility of the process. It also allows easy cleaning and prevents residue buildup.
The vessels and filters use vacuum liquid transfer. This simplifies operation. The fume hood has a transparent sliding door and a flue gas guide plate. It fully extracts all waste gas.
The system handles two waste gas types. These are nitrogen oxides from palladium dissolution and alkaline gases from refining. We treat nitrogen oxides in multiple stages: two bubble absorption, four jet absorption, and one alkaline spray. Alkaline gases receive two-stage acid spray treatment.
The project launched in January 2020. It has performed well. As a result, Shanghai Yaohua signed another contract in August 2020. This one covers platinum refining and waste gas treatment.
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