Stephen C Carniglia

US Patent:

40011445, Jan 4, 1977

Filed:

Dec 19, 1975

Appl. No.:

5/642275

Inventors:

Michael J. Pearson - Pleasanton CA
Ronald J. Rigge - Pleasanton CA
Stephen C. Carniglia - Byron CA

Assignee:

Kaiser Aluminum & Chemical Corporation - Oakland CA

International Classification:

B01J 2104

US Classification:

252463

Abstract:

Modification of the pore volume distribution of an alumina base catalyst support is accomplished by treating an alumina precursor of chi-rho-eta structure with an aqueous ammonium carbonate or bicarbonate solution under pressure at about 100. degree. -160. degree. C for 10-24 hours, followed by drying and thermal activation at a temperature of at least about 500. degree. C. The resulting support will possess more than about 70% of its total pore volume in the 45-300 angstrom unit pore diameter range. This pore volume distribution renders it particularly suitable for use as a catalyst carrier for hydrodesulfurization purposes.

US Patent:

40765806, Feb 28, 1978

Filed:

Mar 24, 1977

Appl. No.:

5/780725

Inventors:

Erwin Panusch - Livermore CA
Igor Sobolev - Orinda CA
Stephen C. Carniglia - Byron CA

Assignee:

Kaiser Aluminum & Chemical Corporation - Oakland CA

International Classification:

D21D 300

US Classification:

162159

Abstract:

Cellulosic boards, such as hardboards, fiberboards and particle-boards, are flame retarded by incorporation of a synergistically acting alumina trihydrate-ulexite composition in the boards. The alumina trihydrate-ulexite flame-retarding agent provides a board of satisfactory strength properties with a flame spread at least equivalent to that of a commercial Class I-rated hardboard when the loading of the flame-retarding agent in the board is kept at 50% or below of the total weight of the flame-retarded board.