| Patents for C10G 19 - Refining hydrocarbon oils, in the absence of hydrogen, by alkaline treatment (954) |
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| 10/27/1981 | CA1111227A1 Regeneration of alkali metal sulfides from alkali metal hydrosulfides |
| 10/06/1981 | US4293424 Coagulating aluminum particles with sodium carbonate |
| 09/22/1981 | US4290879 Removal of carbonyl sulfide from liquid hydrocarbon streams |
| 06/30/1981 | US4276224 Anthraquinone sulphonamide compounds and preparation |
| 06/24/1981 | EP0030805A1 Process for the separation of contaminant material from contaminated oil |
| 06/23/1981 | US4274943 Removal of metal alkaryl sulfonates from hydrocarbons |
| 06/23/1981 | CA1103425A1 Regeneration of alkali metal sulfides from alkali metal hydrosulfides |
| 06/03/1981 | EP0029695A1 Removal of phenols from phenol-containing streams |
| 06/02/1981 | CA1102268A1 Trace acid removal |
| 05/13/1981 | EP0028409A1 De-ashing lubricating oils |
| 05/05/1981 | US4265733 Using ammonium salts as purifying agents |
| 03/17/1981 | US4256578 Waste oil recovery process |
| 03/17/1981 | US4256568 Using metal oxides or metal hydroxides to form an hydroxy metal phenate; separation; decomposition by heating |
| 03/11/1981 | EP0024746A1 Process for the absorption and removal of hydrogen sulphide as elemental sulphur from gases or gas mixtures, and an alkaline solution containing a derivative of anthraquinone sulfonic acid amide |
| 03/10/1981 | US4255252 Treatment with sodium metal |
| 02/24/1981 | US4252637 Treatment with sodium and potassium hydroxides |
| 02/17/1981 | US4251493 Desulfurization using anthraquinone sulfonamide and compound of polyvalent metal |
| 02/17/1981 | US4251492 Purification process |
| 01/27/1981 | CA1094495A1 Process for cleaning rolling lubricant |
| 01/20/1981 | US4246079 Electrolytic reduction of sulfidic spent alkali metal wastes |
| 01/20/1981 | CA1094005A1 Mercaptan extraction process |
| 12/16/1980 | CA1091608A1 Removal of carbonyl sulfide from liquid hydrocarbon streams |
| 10/28/1980 | US4230666 Hydrocarbon purification apparatus |
| 09/23/1980 | US4224283 Purification of hydrocarbons |
| 09/23/1980 | US4224139 Treatment of sulfur-containing lubricating oil to increase resistance to oxidation |
| 08/05/1980 | US4216197 Regeneration of calcium oxide used to desulfurize fuel oils |
| 07/08/1980 | CA1081199A1 Reactivation of a spent liquid catalytic composite |
| 07/01/1980 | US4210526 With hydrated 1a sulfides |
| 06/10/1980 | US4207174 Liquid-liquid extraction apparatus and process |
| 06/03/1980 | CA1078875A1 Stabilized polyolefins and antioxidant therefor |
| 05/20/1980 | US4203830 Visbreaking process for demetalation and desulfurization of heavy oil |
| 04/29/1980 | US4200518 Polyalkylene-amines, crude oils |
| 04/22/1980 | US4199440 Trace acid removal in the pretreatment of petroleum distillate |
| 03/19/1980 | EP0008641A1 Anthraquinonesulphonamides and process for their manufacture |
| 03/19/1980 | EP0008640A1 Method for the removal of hydrogen sulfide from gases or liquid hydrocarbons and gases or liquid hydrocarbons thus purified |
| 07/10/1979 | US4160721 De-sulfurization of petroleum residues using melt of alkali metal sulfide hydrates or hydroxide hydrates |
| 04/03/1979 | US4147612 Regeneration of alkali metal sulfides from alkali metal hydrosulfides |
| 04/03/1979 | US4147611 Regeneration of alkali metal sulfides from alkali metal hydrosulfides |
| 10/31/1978 | US4123351 Removing hydrofluoric acid with potassium hydroxide, flow control |
| 10/31/1978 | US4123350 Process for desulfurization of residua with sodamide-hydrogen and regeneration of sodamide |
| 10/17/1978 | US4120779 Process for desulfurization of residua with sodamide-hydrogen and regeneration of sodamide |
| 08/01/1978 | US4104255 Di-(3,5-dicyclopentyl-4-hydroxybenzyl) sulfide |
| 08/01/1978 | US4104155 Mercaptan extraction process utilizing a stripped alkaline solution |
| 09/20/1977 | US4049543 Treatment with sodium hydroxide, sodium sulfate |
| 08/30/1977 | US4045333 Removing furfural, particles of potassium hydroxide or sodium hydroxide |
| 08/09/1977 | US4040947 Mercaptan extraction process utilizing a stripped alkaline solution |
| 04/12/1977 | US4017381 Process for desulfurization of residua with sodamide-hydrogen and regeneration of sodamide |
| 02/08/1977 | US4007110 Residua desulfurization with sodium oxide and hydrogen |
| 02/08/1977 | US4007109 Combined desulfurization and hydroconversion with alkali metal oxides |
| 01/18/1977 | US4003823 Combined desulfurization and hydroconversion with alkali metal hydroxides |
| 07/27/1976 | US3971713 Calcium hydroxide |
| 06/22/1976 | US3964993 Hydrogen fluoride |
| 05/18/1976 | US3957620 Alkali metal carbonates, thermally cracking, gasification |
| 03/09/1976 | US3943226 Alkali metal aluminate |