Process for preparing titanium oxide shaped carrier
AssigneeMitsubishi Chemical Industries Limited
InventorsKunichi Matsushita, Hikaru Sakurada, Kazuhiko Onuma
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Abstract
A process for preparing a shaped titanium oxide catalyst carrier which comprises calcining titanium oxide at 400.degree. C-800.degree. C as a first calcining step, then shaping the titanium oxide followed by calcining the shaped material at 300.degree. C-800.degree. C as a second calcining step.
Claims16
A process for preparing a shaped titanium oxide catalyst carrier which comprises calcining titanium oxide at 400.degree. C - 800.degree. C then adding to said calcined titanium oxide a mineral acid or carboxylic acid and alumina or a precursor of alumina selected from the group consisting of aluminum hydroxide, alimina sols and aluminum salts, shaping the mixture and then calcining the shaped material at 300.degree. C - 800.degree. C.
A process for preparing a shaped titanium oxide catalyst carrier which consists essentially of calcining titanium oxide at 400.degree. C - 800.degree. C as a first calcining step, then shaping the titanium oxide and then calcining the shaped material at 300.degree. C - 800.degree. C as a second calcining step.
A process for preparing a shaped titanium oxide catalyst carrier which consists essentially of calcining titanium oxide at 400.degree. C - 800.degree. C, then adding a precursor of titanium oxide selected from the group consisting of titanium hydroxide, titania sols and titanic acid esters, shaping the mixture and calcining the shaped material at 300.degree. C - 800.degree. C.
A process for preparing a shaped titanium oxide catalyst carrier which comprises calcining titanium oxide at 400.degree. C - 800.degree. C, then adding polyvinyl alcohol, extruding and granulating it to form spherical pellets and then calcining the shaped pellets at 300.degree. C - 800.degree. C.
A process for preparing a shaped titanium oxide catalyst carrier which consists essentially of calcining titanium oxide at 400.degree. C - 800.degree. C, then adding a mineral acid or carboxylic acid, shaping the mixture and calcining the shaped material at 300.degree. C - 800.degree. C.
A process for preparing a shaped titanium oxide catalyst carrier which consists essentially of calcining titanium oxide at 400.degree. C - 800.degree. C, shaping it, contacting the shaped material with a mineral acid or carboxylic acid and then calcining the shaped material at 300.degree. C - 800.degree. C.
Dependencies are inferred from the claim text.