High VI synthetic lubricants from thermally cracked slack wax
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United States of America Patent
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Jan 4, 1994
Issued Date -
N/A
app pub date -
Jun 24, 1992
filing date -
Aug 23, 1990
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Expired
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Abstract
A process for the production of synthetic lubricants having high viscosity index by oligomerizing a mixture of alpha-olefins produced from the thermal cracking of slack wax or recycled slack wax. The oligomerization is carried out with a reduced metal oxide catalyst, preferably a carbon monoxide reduced chromium oxide on a silica support. The olefin product from the thermal cracking step is purified, preferably by hydrotreating prior to the oligomerization step.
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