Davison Chemical Company

In New York state a reprocessing plant near Buffalo began to reprocess nuclear wastes in 1966. After 6 years Nuclear Fuel Services (NFS), a subsidiary of W.R. Grace s Davison Chemical Company, abandoned the facility. There were 2 million cubic feet of radioactive material left behind along with 600,000 gallons of radioactive liquid waste that was seeping into a creek that flows into Lake Erie the source of drinking water for Buffalo. The cost of cleanup was estimated to be 1 billion. 

Davison Chemical Company, Division of W. B. Grace Co., Baltimore, Maryland... 

The first non-Philadelphia Chamber plant in the U S. was built in Baltimore, MD, by William T. Davison (-1804 - 1881) in 1832. Davison Chemical Company (acquired by WR. Grace in 1954) was an early manufacturer of phosphate fertilizers. Another major acid producer was Merrimac Chemical of Boston. The company had been formed in 1863 from the merger of Merrimac Manufacturing, founded by Patrick Tracy Jackson (1780 - 1847) in 1821, and Woburn Chemical, founded by Robert Eaton in 1853. This enterprise was purchased by Monsanto in 1929. 

The authors would like to acknowledge the assistance of D. B. Cline in obtaining data presented in this paper. We also wish to thank the Aluminum Company of America, Godfrey L. Cabot, Inc., and the Davison Chemical Company for furnishing powders investigated for this paper. 

Davison Chemical Company Used silica gel impregnated with ammonium chloroplatinate to give 0.1% platinum. Claimed to use less platinum than other catalvsts and to resist arsenic poisoning. 

Davison, G., and Hewitt, C.N. (ed.) (1997) Air Pollution in the United Kingdom, Royal Society of Chemistry, London. Dow Chemical Company (1993) Dow s Fire and Explosion Index Hazard Classification Guide American Institute of Chemical Engineers. 

Silica gel of mesh 60-200 was supplied by Davison Chemical Division, W. R. Grace and Company, Baltimore, Maryland, and was dried at 70° before use. The flow rate of hexane during the chromatography was 41. per hour. 

W. R. Grace Company, Davison Chemical Division, Columbia, MD 21044... 

Caution The catalyst is extremely pyrophoric when exposed to the air in a dry condition it should be kept wet with solvent at all times. The catalyst (Raney 2800 Grade Active Nickel Catalyst in Water) is purchased from Davison Chemical, and is weighed out while it is wet. The catalyst is washed by suspension in methanol and decanted to remove water. It is further washed with ethyl acetate prior to use. The checkers obtained similar results with Raney nickel (50% slurry in water) catalyst purchased from Aldrich Chemical Company, Inc. 

The editor would like to acknowledge several friends in the rare earth industry for suggesting topics and potential authors. These are G. A. Barlow (Union Molycorp), J. G. Cannon (Union Molycorp), I. S. Hirsch-hom (Ronson Metals Corporation), W. A. Otis (Ronson Metals Corporation), and O. A. Wunderlich (Davison Specialty Chemical Company, W. R. Grace and Company). The efforts of the four Session Chairmen,... 

The FCC process is the most common conversion unit in use today. As such, it is important to determine the performance of an FCC when feeding hydrotreated shale oil. The two 650° F+ feeds shown in Table VI were evaluated in an FCC pilot plant operating in a fixed fluidized-bed mode. The catalyst was withdrawn from an operating commercial FCC unit. It is a zeolite catalyst, CBZ-1, produced by Davison Chemical Division of W. R. Grace and Company and is moderately active as well as contaminated with metals. 

Fluid grades of synthetic silica-alumina catalyst are manufactured by the American Cyanamid Company, The Davison Chemical Corporation, Morton Salt Company, and National Aluminate Corporation. At first the catalyst was dried and ground to produce the desired range of particle sizes. It was later found that by using spray driers micro-spheroidal particles of the desired size distribution could be produced directly without any grinding (7,10,145). The particle-size distribution can be altered, within limits, by changing the spray-drier conditions (145). 

In 1955, he began his association with Davison first at the Research Facilities at Curtis Bay, Maryland, and later in 1958 at the Washington Research Center near Clarksville, Maryland. Frank joined W. R. Grace Company as Research Director of the Davison Chemical Division. 

In August 1988, the Catalysts, Adsorbents, and Process Systems (CAPS) business of Union Carbide was merged into a new venture operating under the name UOP. Molecular sieves offered by UOP are basically the same materials as those formerly provided by Union Carbide. Several other companies now offer molecular sieves, including Zeochem and the Davison Chemicals Division of W.R. Grace Company. 

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