2results about How to "High sulfur content" patented technology

The invention provides a Fe / Cu-BTC-BA catalyst as well as a preparation method and application thereof, and relates to the technical field of metal organic framework materials. The preparation method comprises the following steps: mixing an iron source, a copper source, trimesic acid, benzoic acid and hexadecyl trimethyl ammonium bromide with a solvent, carrying out solvothermal reaction at 120-140 DEG C for 20-28 hours, and filtering, washing and drying to obtain the target catalyst. Fe-Cu double active sites are constructed and are combined with double ligands to induce Cu < 2 + > to be converted into Cu < + >, so that the Lewis acidity and hydrogen sulfide adsorption activation capability are enhanced, the skeleton stability is improved, and meanwhile, the pore structure is optimized. The catalyst has the advantages of high specific surface area, highest sulfur capacity of 7.8%, high desulfurization rate and stable structure, and is suitable for catalytic desulfurization of sulfur-containing gas.

The application discloses a preparation method and application of manganese gypsum, and the method is characterized by the following steps: uniformly mixing manganese sulfate residue, red mud, desulfurization ash and water, stirring into slurry, and aging for a period of time to obtain the product manganese gypsum which can be used as a cement retarder. In the application, the alkaline solid waste red mud and desulfurization ash are added to the manganese residue, and the calcium sulfite in the desulfurization ash is oxidized in the mixing process, thereby modifying the manganese residue and improving the sulfur content in the manganese gypsum and the retarding effect. The preparation method is simple, the manganese residue disposal amount is large, the manganese residue is innovatively prepared into the retarder required by cement production, and the preparation method does not need high-temperature treatment and does not consume electric energy, so that the energy consumption is reduced. Finally, the difficult-to-handle manganese residue, red mud and desulfurization ash are solidified and treated to prepare the retarder required by cement production, the manganese residue is converted into a resource which can be directly used in the building material industry, the resource utilization of the waste is realized, the application is simple and practical, and the purpose of reducing cost and increasing efficiency is achieved.