Patents for C10G 71 - Treatment by methods not otherwise provided for of hydrocarbon oils or fatty oils for lubricating purposes (421) |
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11/08/1983 | CA1156588A1 Catalytic dewaxing of hydrocarbon oils |
03/29/1983 | CA1143712A1 Process for the preparation of a sulphided fluorine-containing nickel-tungsten catalyst and a process for the conversion of hydrocarbons, and the resulting hydrocarbons |
03/22/1983 | CA1143313A1 Method of transporting viscous hydrocarbons |
02/16/1983 | EP0072220A1 Two-stage hydrocarbon dewaxing hydrotreating process |
12/21/1982 | US4364776 Pumping in dispersant chemical in water jet, emulsification |
11/16/1982 | CA1135644A1 Method of transporting viscous hydrocarbons |
05/18/1982 | US4330395 Hydrogenation catalyst |
05/11/1982 | CA1123175A1 Removing h.sub.2s from tail gas with recycled nmp extraction solvent |
04/20/1982 | US4325805 Hydroccracking, photostability, zeolites |
01/20/1982 | EP0044135A1 Process for production of oxidation-resistant hydrocarbon oil composition and oxidation-resistant composition made thereby |
07/29/1981 | EP0032813A1 Recovery of heavy hydrocarbons from oil sludge |
07/21/1981 | US4279778 Process for the preparation of a sulphided fluorine-containing nickel-tungsten catalyst for the conversion of hydrocarbons |
12/10/1980 | EP0019980A1 Method for the preparation of a sulphided fluorine-containing nickel-tungsten catalyst and process for the conversion of hydrocarbons using such a catalyst |
11/12/1980 | EP0018778A1 Catalytic dewaxing of hydrocarbon oils |
10/21/1980 | US4229282 Nickel-tungsten zeolite |
07/09/1980 | EP0013177A1 Use of hot N-methyl-2-pyrrolidone (NMP) from solvent extraction operation to supply heat to strip H2S from NMP-scrubbing solution |
06/17/1980 | US4208382 Removing H2 S from gas with recycled NMP extraction solvent |
01/01/1980 | US4181597 Method of stabilizing lube oils |
02/06/1979 | CA1047954A1 Process for the preparation of lubricating oils |
08/15/1978 | CA1036587A1 Synthetic lubricating oils from hydrogenating catalytic cracking of very high viscosity polymers |
05/03/1977 | US4021334 Process for manufacture of stabilized lubricating oil with elemental sulfur |