SHANGHAI KEYONTECHS CO., LTD.
SHANGHAI KEYONTECHS CO., LTD. Patent applications | ||
Patent application number | Title | Published |
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20140205534 | METHOD FOR PREPARING SULFURIC ACID BY USING HYDROGEN SULFIDE - Provided is a method for preparing sulfuric acid by using hydrogen sulfide. The method comprises the following steps: (1) performing a reduction-oxidation reaction between an H | 07-24-2014 |