共搜索到9192条信息,每页显示10条信息,共920页。用时:0小时0分0秒455毫秒
Phase Chemistry of the Complexes of RE Amino Acids 高胜利1,李焕勇1,陈三平1,史启祯1 (1.Department of Chemistry, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi′an 710069, China... of combustion and standard enthalpies of formation were calculated for these complexes. Key words:rare earths; amino acids; phase chemistry; thermochemistry; [全文内容正在添加中] ......
Comparative Crystal Chemistry of Rare Earth Minerals杨主明,潘兆橹,张建洪摘 要:<正> Polyhedral analysis is used to study the geometrical limits of the crystal structure on isomorphic substitutionof rare earths.The rare earth sites in the structure may be distinguished into six groups on the basis of meanionic radii of the substituting cations in each rare......
......
Characteristics of Trivalent Lanthanides in Coordination Chemistry 薛冬峰1,左森1 (1.State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology,Dalin 116012... coordination number.The difference of electronegative values decreases with the increase in the lanthanide coordination number. Key words:lanthanides; coordination chemistry: coordination number; rare......
A review on yttrium solvent extraction chemistry and separation process李德谦State Key Lab of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, CAS摘 要:This paper reviewed various systems such as neutral phosphorus and acid phosphorus, carboxylic acid and amine extractant for solvent extraction chemistry of yttrium, including......
A review on yttrium solvent extraction chemistry and separation process李德谦State Key Lab of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, CAS摘 要:This paper reviewed various systems such as neutral phosphorus and acid phosphorus, carboxylic acid and amine extractant for solvent extraction chemistry of yttrium, including......
A review of C1 chemistry synthesis using yttrium-stabilized zirconia catalystAntonius Indarto,Jae-Wook Choi,Hwaung Lee,Hyung Keun Song摘 要:C1 chemistry... of the catalyst. Another issue of C1 chemistry is related to the methane-initiated process. It has been known that direct methane conversions are still suffering from low yields and selectivity......
QUANTUM CHEMISTRY STUDIES ON THE STRENGTH PERFORMANCE OF ETTRINGITE程新,冯修吉摘 要:<正>Ettringite is a main hydrate of cement,and theSr-bearing ettringite is a main hydrate of Sr-bearing calciumsuplhoaluminate.In this paper the two hydrates are studiedby a quantum chemistry method,the self-consistent-field dis-crete variation Xα.method (SCC-DV-Xα......
chemistry......
......