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U.S. Department of Energy
Office of Scientific and Technical Information

Study of some transition metal complexes as process catalysts. Quarterly report, December 1, 1985-February 28, 1986

Technical Report ·
OSTI ID:5974133
The main objectives of this project are the following: (1) Preparation and characterization of transition metal complexes with nitrogen, oxygen and sulfur donor ligands, especially the poly(pyrazolyl)borate ligands. (2) Preparation of bimetallic complexes of molybdenum and other metals such as nickel, cobalt, and iron. (3) Determination of the ability of the above complexes to catalytically reduce polycyclic aromatic or heterocyclic compounds. (4) Evaluation of these complexes as coal liquefaction catalysts. (5) Evaluation of these complexes as desulfurization and denitrogenation catalysts. (6) Training of students in transition metal complex preparation and characterization and in the evaluation of metal complexes as process catalysts. During this past quarter, cobalt, zirconium, and iron complexes poly(pyrazolyl)borate were prepared and characterized. Titanium complexes are under investigation by infrared and proton NMR. The structures and physical properties of the ligands, potassium dihydrobis(pyrazolyl)borate, potassium hydrotris(pyrazolyl)borate and potassium tetrakis(pyrazolyl)borate were consistent with what had been reported in the literature. The cobalt complexes were tested as coal liquefaction catalysts in an autoclave reactor. The liquefaction data for the cobalt complexes are compared with data for ammonium molybdate. Results are discussed. 3 figs., 9 tabs.
Research Organization:
Texas Southern Univ., Houston (USA). Dept. of Chemistry
DOE Contract Number:
FG22-84PC70753
OSTI ID:
5974133
Report Number(s):
DOE/PC/70753-T6; ON: DE86008692
Country of Publication:
United States
Language:
English