Mineral oils: processes and products – Treatment of refining sludge
Patent
1992-05-07
1994-02-22
McCarthy, Neil M.
Mineral oils: processes and products
Treatment of refining sludge
208179, 208182, 208183, 210710, C10G 1702, C10G 1902, C10G 19073
Patent
active
052883922
ABSTRACT:
A process for converting the acid sludge produced by waste oil refineries into an acid sludge intermediary which can be used in the production of asphaltic mixtures. The process includes contacting the entire surface area of acid sludge with a pH altering agent such as an aqueous inorganic liquid, and separating the liquid layer from the sludge layer, thereby producing an intermediate sludge having properties which make it suitable for use in asphalt production.
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1980 Annual Book of ASTM Standards, Part 23, Petroleum Products and Lubricants (I), D56-D1660, American Society for Testing and Materials, pp. 454-461.
Fish Ronald C.
McCarthy Neil M.
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