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U.S. Department of Energy
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Study of some transition metal complexes as process catalysts. Quarterly report, September 1-November 31, 1985

Technical Report ·
OSTI ID:6323378
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; and (6) training of students in transition metal complex preparation and characterization and in the evaluation of metal complexes as process catalysts. During this quarter, potassium dihydrobis(pyrazolyl)borate was prepared and reacted with cobalt chloride and zirconium halides to produce cobalt and zirconium complexes. The structures and physical properties of the two ligands, potassium dihydrobis(pyrazolyl)borate and potassium hydrobis(pyrazolyl)borate were investigated. Titanium and zirconium complexes are being characterized. The 300 ml autoclave reactor was tested. Three direct coal liquefaction runs were made on Illinois No. 6 River King coal. A typical loading consisted of 35.7 g of coal that had been ground to pass 60 mesh, 70.0 g of SRC II, a distillate cut, and 2000 to 16,000 ppM by weight of metal on dry/ashless coal. Results are presented for the catalytic and noncatalytic liquefaction runs. 2 figs., 6 tabs. (AT)
Research Organization:
Texas Southern Univ., Houston (USA). Dept. of Chemistry
DOE Contract Number:
FG22-84PC70753
OSTI ID:
6323378
Report Number(s):
DOE/PC/70753-T5; ON: DE86005975
Country of Publication:
United States
Language:
English