Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2008-01-18
2010-10-12
Nguyen, Cam N (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S258000, C502S259000, C502S260000, C502S261000, C502S262000, C502S263000, C502S327000, C502S332000, C502S333000, C502S334000, C502S335000, C502S336000, C502S337000, C502S338000, C502S339000, C502S350000, C502S355000, C502S415000, C502S439000, C502S527120, C502S527170
Reexamination Certificate
active
07811966
ABSTRACT:
A catalyst, catalyst precursor, or catalyst carrier formed as an elongated shaped particle having a cross section comprising three protrusions each extending from and attached to a central position. The central position is aligned along the longitudinal axis of the particle. The cross-section of the particle occupies the space encompassed by the outer edges of six outer circles around a central circle, each of the six outer circles contacting two neighbouring outer circles, the particle occupying three alternating outer circles equidistant to the central circle and the six interstitial regions, the particle not occupying the three remaining outer circles which are between the alternating occupied outer circles. The ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1, and the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1. The ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than the ratio of the diameter of the central circle to the diameter of the outer occupied circle.
REFERENCES:
patent: 3764565 (1973-10-01), Jacobs et al.
patent: 4028221 (1977-06-01), Sze et al.
patent: 4116817 (1978-09-01), Frayer et al.
patent: 4116819 (1978-09-01), Frayer et al.
patent: 4118310 (1978-10-01), Frayer et al.
patent: 4133777 (1979-01-01), Frayer et al.
patent: 4328130 (1982-05-01), Kyan
patent: 4342643 (1982-08-01), Kyan
patent: 4391740 (1983-07-01), Gibson
patent: 4394303 (1983-07-01), Gibson
patent: 4489173 (1984-12-01), Gibson
patent: 4495307 (1985-01-01), Clements
patent: 4517077 (1985-05-01), Clements
patent: 4606815 (1986-08-01), Gibson
patent: 4628001 (1986-12-01), Sasaki et al.
patent: 4645654 (1987-02-01), Barczak
patent: 4645754 (1987-02-01), Tamura et al.
patent: 4673664 (1987-06-01), Bambrick
patent: 4975032 (1990-12-01), Arai et al.
patent: 6005121 (1999-12-01), Ebner et al.
patent: 7563745 (2009-07-01), Hoek et al.
patent: 2006/0111455 (2006-05-01), Klaver et al.
patent: 698392 (1998-10-01), None
patent: 3315105 (1983-11-01), None
patent: 0218147 (1987-04-01), None
patent: 0220933 (1987-05-01), None
patent: 127220 (1988-01-01), None
patent: 0428223 (1991-05-01), None
patent: 4464633 (1992-01-01), None
patent: 510770 (1992-10-01), None
patent: 455307 (1994-08-01), None
patent: 0678331 (1995-10-01), None
patent: 1042067 (2000-10-01), None
patent: 1446175 (1976-08-01), None
patent: 55119445 (1980-09-01), None
patent: WO199306041 (1993-04-01), None
patent: WO199934917 (1999-07-01), None
patent: WO2003013725 (2003-02-01), None
patent: WO2003103833 (2003-12-01), None
International Search Report dated Mar. 16, 2004.
I. Naka and A. de Bruijn, J. Japan Petrol. Inst., vol. 23, No. 4, 1980, pp. 268-273.
International Search Report dated Sep. 11, 2003.
Calis Hans Peter Alexander
Verbist Guy Lode Magda Maria
Nguyen Cam N
Shell Oil Company
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