Method for preparation of metal organic acid chelates
申请人:JH Biotech, Inc.
公开号:EP1529775B1
公开(公告)日:2006-04-19
Nature of the metal(II) complexes formed in the reactions of formaldehyde with the bis(glycinato) complexes of nickel(II), cobalt(II) and copper(II) at pH 4.5
作者:So'on-Beng Teo、Siang-Guan Teoh
DOI:10.1016/s0020-1693(00)81775-2
日期:1984.2
Tikhonov, V. P., Koordinatsionnaya Khimiya, 1991, vol. 17, p. 581 - 587
作者:Tikhonov, V. P.
DOI:——
日期:——
Vasil'ev, V. P.; Zaitseva, G. A., Russian Journal of Inorganic Chemistry, 1989, vol. 34, p. 1761 - 1763
作者:Vasil'ev, V. P.、Zaitseva, G. A.
DOI:——
日期:——
Physical Grinding of Prefabricated Co3O4 and MCM-22 Zeolite for Fischer–Tropsch Synthesis: Impact of Pretreatment Procedure on the Dispersion and Catalytic Performance
To improve the mess-specific activity of Co supported on zeolite catalysts in Fischer–Tropsch (FT) synthesis, the Co-MCM-22 catalyst was prepared by simply grinding the MCM-22 with nanosized Co3O4 prefabricated by the thermal decomposition of the Co(II)-glycine complex. It is found that this novel strategy is effective for improving the mess-specific activity of Co catalysts in FT synthesis compared to the impregnation method. Moreover, the ion exchange and calcination sequence of MCM-22 has a significant influence on the dispersion, particle size distribution, and reduction degree of Co. The Co-MCM-22 prepared by the physical grinding of prefabricated Co3O4 and H+-type MCM-22 without a further calcination process exhibits a moderate interaction between Co3O4 and MCM-22, which results in the higher reduction degree, higher dispersion, and higher mess-specific activity of Co. Thus, the newly developed method is more controllable and promising for the synthesis of metal-supported catalysts.