2results about How to "Clean manufacturing" patented technology

This invention relates to an anti-sulfur poisoning catalyst, its preparation method, and its application. The preparation method includes: mixing a platinum source, a vanadium source, oxalic acid, aluminum oxide, and a solvent under stirring conditions to obtain a suspension; the suspension is then dried and sintered to obtain the anti-sulfur poisoning catalyst. The anti-sulfur poisoning catalyst prepared by this invention exhibits excellent anti-sulfur performance and high activity. Through the sacrificial action of vanadium, it adsorbs sulfur oxides, thereby protecting the platinum active sites. This invention employs an impregnation method, utilizing oxalic acid as a co-solubilizer for the vanadium source, resulting in a clean and low-cost production process with promising application prospects.

This invention relates to a one-step method for synthesizing flake-like Ba3(VO4)2. The method includes the following steps: mixing an alkali source, a vanadium source, a barium source, and water, and stirring the mixture. The alkali source accounts for 5-20 wt% of the water mass. After the stirring reaction, solid-liquid separation is performed to obtain flake-like Ba3(VO4)2 and a filtrate. The method provided by this invention eliminates the need for high-temperature calcination and precise pH control, enabling the direct and efficient synthesis of highly crystalline and uniformly morphologically uniform flake-like Ba3(VO4)2 under mild conditions. This significantly reduces production costs and process complexity, and the production process is more economical and cleaner.