Test method for mixed catalyst solution of cobalt acetate, manganese acetate and hydrobromic acid (2)
Time of Update: 2021-12-11
5 Result calculationThe mass fraction w 1 of manganese (Mn 2+ ) content , expressed in %, is calculated according to formula (1): Where:V— The value of the volume of the standard titration solution (3.
Hoisting of 2 finished roasters for the 10th Dalian Catalyst Project was completed
Time of Update: 2021-09-13
node in the overall construction plan of the project. Its smooth placement is the follow-up CD The steel frame on the top of the shaft and the installation of small equipment provide a working surface, laying a solid foundation
Academy of Sciences, have made new progress in the field of high efficiency electrocatalytic CO 2 of monoatomic catalyst
Time of Update: 2019-10-09
Monoatomic catalysts have the highest atomic efficiency and show high activity and selectivity in many catalytic reactions.
ACS catalyst: RhCl3 · 3H2O catalyzed C (SP2) - H alkoxycarbonylation to prepare indole and pyrrole-2-carboxylate
Time of Update: 2019-06-03
(source: ACS catalyst.) in addition, the method can also be used to prepare ester functionalized pyrrole derivatives (scheme 4).
Green chem.: efficient synthesis of [1,3] - oxazine-n-fused imidazole-2-thioketone by three component series reaction without catalyst
Time of Update: 2018-07-31
Recently, Professor Yu Yongping of Zhejiang University and assistant researcher Chen wenteng developed a green, efficient and rapid method to construct [1,3] - oxazine fused heterocyclic framework: scheme 1D of glyoxal hydrate, amino alcohol and KSCN.