4results 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 present invention provides a method for resource utilization of laterite nickel ore acid leaching residue, and relates to the technical field of high-value comprehensive utilization of laterite nickel ore. The method specifically comprises: S1: acid leaching treatment of laterite nickel ore, S2: pre-neutralization and iron precipitation, filtration, S3: aluminum removal, nickel and cobalt precipitation treatment, S4: carbonization and desulfurization treatment, S5: iron concentrate powder quality improvement treatment, S6: sulfate solution carbonization transformation treatment. Compared with other traditional methods, the method of the present invention, in particular, the iron element component in the prepared iron concentrate is effectively utilized and the sulfur element is effectively reduced, the grade of the iron concentrate is higher, the preparation process is short, the cost is low, the efficiency is high, there will be no by-products that affect the environment or have low economic value, and it is conducive to large-scale industrial production and promotion.

A method for using a titanium dioxide and molybdenum disulfide composite to solve the problem of lubricating oil performance degradation caused by carbon soot pollution belongs to the field of lubricating oil additives. Using hydrophilic and lipophilic nano titanium dioxide, sodium molybdate, thioacetamide, etc. as raw materials, a nanocomposite of titanium dioxide and molybdenum disulfide is synthesized, and the nanocomposite of titanium dioxide and molybdenum disulfide with a mass fraction of no more than 2.0% is added to the lubricating oil contaminated by carbon soot, which can solve the problem of lubricating oil performance degradation caused by carbon soot pollution, and at the same time, the lubricating performance of the lubricating oil can be further improved. The method is simple to operate and highly efficient, and has good application prospects in the fields of molybdenum disulfide lubricants, engine lubricating oil additives, etc.

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.