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10 de sept. de 2021 · The convenient generation of xanthate salts and high reactivity of sequential C–S/C–O bond homolytic cleavage enable efficient deoxygenation of ... Synthetic applications of the methodology.
6 de jun. de 2019 · A new methodology for the synthesis of bis(γ-thiolactones) including two different routes was developed. Both strategies are based on xanthate-mediated synthesis involving free radical addition to an unsaturated compound followed by thermolysis and thiolactonization steps.
The optimum conditions obtained from this experiment were xanthate concentration of 2000 ppm, pH of 3, and the ore sample 2 with kinetic constant 0,0463 ... concentration of 2000 ppm, pH of 3, and the ore sample 2 with kinetic constant 0,0463. By using Response Surface Methodology, the simultaneous equation of pH and concentration ...
21 de abr. de 2020 · The last approach hinges on the direct modification of indoles by radical addition to the pyrrole subunit of the indole nucleus. Application of this methodology to the total synthesis of melatonin and the alkaloids mersicarpine, caulerpine, and the pentacyclic skeleton of tronocarpine is briefly discussed.
1 de dic. de 2023 · So, the xanthate degradation pathways mediated by pyrite might be similar to that mediated by photocatalytic materials (Yang et al., ... Methodology, Data curation, Formal analysis, Funding acquisition, Writing – original draft. Miaoxin Chen: Methodology, Data curation, Formal analysis, Validation.
2 de feb. de 2024 · Scrum, Kanban, waterfall, Agile. There's a wide array of project management frameworks you can use. Some methods though, like waterfall, aren't as effective for software teams.With priorities and customer needs constantly changing, the Agile methodology breaks projects up into several phases to drive continuous improvement.
25 de may. de 2024 · In this study, batch flotation tests were conducted to investigate the flotation of oxidized copper ore from the supergene zone of the Bounhas deposit. Utilizing the Response Surface Methodology (RSM) anchored on the Box-Behnken Design (BBD), the effects of parameters such as collector dosage, sulfidizing agent, copper oxide and iron oxide grades, and particle size on copper recovery were ...
