106-55-8Relevant articles and documents
Structure of catalytically active Rh-In bimetallic phase for amination of alcohols
Takanashi, Tsukasa,Tamura, Masazumi,Nakagawa, Yoshinao,Tomishige, Keiichi
, p. 28664 - 28672 (2014)
The structure of Rh-In bimetallic catalysts supported on carbon for amination of alcohols was determined by XRD, TEM-EDX, XPS, CO adsorption and EXAFS. At low In/Rh ratio (In/Rh ≤ 0.2), Rh metal particles with sizes of a tetragonal RhIn alloy with a particle size of ~20 nm was formed. This tetragonal alloy has a structure with a = 0.315 nm and c = 0.328 nm where metal atoms are located at (0, 0, 0) and (0.5, 0.5, 0.5). The catalytic activity of the tetragonal RhIn alloy is much higher than that of Rh metal particles with or without indium oxide species. With an excess amount of In (In/Rh > 1) on the high Rh loading (20 wt%) catalyst, the cubic RhIn phase with a CsCl structure was observed instead of the tetragonal RhIn phase, and the catalytic activity was much decreased.
-
Chang et al.
, p. 939 (1960)
-
Synthesis of 1,2-propanediamine via reductive amination of isopropanolamine over Raney Ni under the promotion of K2CO3
Yu, Qin-Wei,Li, Ya-Ni,Zhang, Qian,Wang, Wei-Qiang,Mei, Su-Ning,Hui, Feng,Shi, Jian,Zhao, Feng-Wei,Yang, Jian-Ming,Lu, Jian
, p. 2019 - 2026 (2019/09/09)
Catalytic amination of isopropanolamine and ammonia to 1,2-propanediamine over Raney Ni with potassium carbonate as the additive was reported. Characterization of N2 adsorption–desorption and XRD were performed to reveal the textural and structural properties of the catalysts. With the additive of potassium carbonate, the selectivity of 1,2-propanediamine was improved, while the side generation of 2,5-dimethylpiperazine was suppressed. The catalytic reaction parameters were optimized and the yield of 1,2-propanediamine reached 80% under the optimized reaction condition.
METHOD FOR PRODUCING AMINES FROM GLYCERIN
-
Page/Page column 12-13; 14, (2010/10/03)
The present invention relates to a process for preparing amines by reacting glycerol with hydrogen and an aminating agent from the group of ammonia and primary and secondary amines in the presence of a catalyst at a temperature of from 100° C. to 400° C. and a pressure of from 0.01 to 40 MPa (from 0.1 to 400 bar). Preference is given to using glycerol based on renewable raw materials. The catalyst preferably comprises one metal or a plurality of metals or one or more oxygen compounds of the metals of groups 8 and/or 9 and/or 10 and/or 11 of the Periodic Table of the Elements. The invention further relates to the use of the reaction products as an additive in cement or concrete production and in other fields of use. This invention further provides the compounds 1,2,3-triaminopropane, 2-aminomethyl-6-methylpiperazine, 2,5-bis(aminomethyl)piperazine and 2,6-bis(aminomethyl)piperazine.