US 11,884,594 B2
High strength shaped aluminas and a method of producing such high strength shaped aluminas
David A. Barclay, Westlake, LA (US); and Mark M. Chavez, Westlake, LA (US)
Filed by Sasol (USA) Corporation, Houston, TX (US)
Filed on Jul. 2, 2021, as Appl. No. 17/366,277.
Application 17/366,277 is a continuation of application No. 16/099,397, granted, now 11,091,396, previously published as PCT/US2017/033831, filed on May 22, 2017.
Claims priority of provisional application 62/340,048, filed on May 23, 2016.
Prior Publication US 2021/0403383 A1, Dec. 30, 2021
Int. Cl. C04B 35/111 (2006.01); C04B 35/626 (2006.01); C04B 35/63 (2006.01); C30B 15/10 (2006.01); C30B 35/00 (2006.01); C01F 7/023 (2022.01); C01F 7/025 (2022.01); C04B 35/632 (2006.01); C09K 8/80 (2006.01); B01J 2/10 (2006.01)
CPC C04B 35/111 (2013.01) [C01F 7/023 (2013.01); C01F 7/025 (2013.01); C04B 35/1115 (2013.01); C04B 35/6261 (2013.01); C04B 35/62695 (2013.01); C04B 35/632 (2013.01); C04B 35/6303 (2013.01); C30B 15/10 (2013.01); C30B 35/002 (2013.01); B01J 2/10 (2013.01); C01P 2002/60 (2013.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/80 (2013.01); C04B 2235/3218 (2013.01); C04B 2235/549 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5472 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/72 (2013.01); C04B 2235/77 (2013.01); C04B 2235/94 (2013.01); C04B 2235/95 (2013.01); C04B 2235/96 (2013.01); C09K 8/80 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of producing a shaped alumina comprising:
i) providing an alumina powder having a crystallite size of between to 325 Å and 450 Å
ii) feeding the alumina powder into an agglomerator, the agglomerator including a shaft with mixers able to displace the alumina powder along a length of the shaft
iii) spraying a liquid binder onto the alumina powder as it is displaced along the length of the shaft of the agglomerator to form a shaped alumina, and
iv) calcining the shaped alumina.