PATENT ASSIGNEE'S COUNTRY | USA |
UPDATE | 11.99 |
PATENT ASSIGNEE | UniPure Corp |
PATENT CLAIMS |
Claim 32: Method for upgrading an oil stream contg naphthenic acid & S contaminants - Adding CaO to oil stream at amount 1.5-2.0 times the total theoretical requirement for converting all -COOH to CaCO3 & all S to CaS - Mixing CaO with oil stream to form mixt - Heating mixt under pressure to prevent vaporization of mixt to 250-500C for 5-15 min to react acid with CaO to form non- acidic compds & CaCO3 & S contaminants with CaO to form CaS - Sepn CaCO3 & CaS |
PATENT PHOTOCOPY | Available on request |
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