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8413457 
Journal Article 
Chlorinated platinum-alumina low temperature isomerization catalysts 
Giannetti, JP; Sebulsky, RT 
1969 
0 
Industrial and Engineering Chemistry Product Research and Development
ISSN: 0196-4305 
8 
4 
356-361 
English 
Low temperature paraffin isomerization catalysts can be prepared by reaction of a platinum-alumina with various chlorinating agents. Thionyl chloride, sulfuryl chloride, sulfur monochloride, and a mixture of sulfur dioxide and chlorine can be employed at elevated temperatures to chlorinate the catalyst. Increased catalyst activity is obtained if the platinum-alumina is treated with hydrogen chloride prior to the sulfur chloride treatment. These chlorinated platinum-aluminas are capable of isomerizing butane, pentane, and hexane to near their equilibrium isomer distributions at temperatures below 350° F. In addition to the chlorination sequence, the alumina and its platinum content play major roles in determining catalyst activity. © 1969, American Chemical Society. All rights reserved.