Patent application number | Description | Published |
20100051509 | Halogen-free ionic liquids in naphtha desulfurization and their recovery - Ionic liquids of the general formula C | 03-04-2010 |
20100107478 | Oxazolidines derived from polyalkyl or polyalkenyl n-hydroxyalkyl succinimides, obtainment process and use - The present invention relates to oxazolidines derived from polyalkyl or polyalkenyl N-hydroxyalkyl succinimides, the obtainment process thereof, and their use to prevent and control the formation of deposits in internal combustion engines, primarily in formulations of additives to be applied to hydrocarbon fuels. | 05-06-2010 |
20100140141 | Demulsifying and dehydrating formulations for heavy crude oils based on block copolymers bifunctionalized with amines - The present invention relates to demulsifying and dehydrating formulations of heavy crude oil based block copolymers amine bifunctionalized with low polydispersities. These formulations can contain solvents whose boiling point is in the range from 35 to 200° C., preferably: dichloromethane, chloroform, toluene, xylenes, turbosine, naphtha or mixtures thereof. | 06-10-2010 |
20110067295 | Formulations of random polymers for improving crude petroleum flow - The present invention is related to the use of formulations of new random copolymers and terpolymers, synthesized by a method of semi continuous emulsion polymerization, and that function as flow improvers, lowering the pour point and reducing the viscosity of Mexicans crude oils, which have gravities within the range of 9 to 30° API. | 03-24-2011 |
20110215052 | Process of recovery of exhausted ionic liquids used in the extractive desulfurization of naphthas - A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic solvent; adjusting the pH of the mixture to pH 7-10 by the addition of a base to form a first precipitate; separating the first precipitate from the mixture; removing the organic solvent from the first mixture to form a second precipitate and separating the second precipitate from the first mixture; acidifying the resulting mixture to pH 2-7 by the addition of an acid; and drying the mixture to obtain a second ionic liquid having a halogen anion. | 09-08-2011 |
20120255886 | DEHYDRATING AND DESALTING MEDIAN, HEAVY AND EXTRA-HEAVY OILS USING IONIC LIQUIDS AND THEIR FORMULATIONS - The present invention relates to the application of ionic liquids individually or in formulation to dry and desalt crudes oils having API gravities in the range of 8 to 12 (median, heavy and extra-heavy) when applied at concentrations ranging from 500 and up to 5000 ppm. The ionic liquids have a cation selected from the group consisting of carboxymethane-ammonium, ammonium, imidazolium, isoquinolinium, pyridinium, and 1,5-dicarboxylic-pentane-2-ammonium and an anion selected from the group consisting of R | 10-11-2012 |
20120261312 | SYNERGISTIC FORMULATIONS OF FUNCTIONALIZED COPOLYMERS AND IONIC LIQUIDS FOR DEHYDRATED AND DESALTED OF MEDIUM, HEAVY AND EXTRA HEAVY CRUDE OILS - The present invention is related to formulations including one or more block copolymers with low polydispersity and bifunctionalized with amines, and an ionic liquid. A method of demulsifying, dehydrating, and desalting crude oils having API gravity ranging between 8 to 30 admixes the formulation with the crude oil in an amount effective to demulsify, dehydrate and/or desalt the crude oils. | 10-18-2012 |
20140238900 | BLOCK COPOLYMERS, SYNTHESIS AND APPLICATION AS DEHYDRATING AND DESALTING OF HEAVY CRUDES - The present invention is related to formulations consisting by block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide) | 08-28-2014 |
20140238901 | DEHYDRATING AND DESALTING COMPOSITIONS OF CRUDE OILS, USING TRIBLOCK COPOLYMERS ALPHA,OMEGA-BIFUNCTIONALIZED WITH AMINES - Compositions consisting of block copolymers α,ω-di-aryl or alkyl sulfonates of poly(ethylene oxide) | 08-28-2014 |
20140336285 | Demulsifying and dehydrating formulations for heavy crude oils based on block copolymers bifunctionalized with amines - The present invention relates to demulsifying and dehydrating formulations of heavy crude oil based block copolymers amine bifunctionalized with low polydispersities. These formulations can contain solvents whose boiling point is in the range from 35 to 200° C., preferably: dichloromethane, chloroform, toluene, xylenes, turbosine, naphtha or mixtures thereof | 11-13-2014 |
20140364566 | SCALE-UP PROCESS OF BIFUNCTIONALIZED TRIBLOCK COPOLYMERS WITH SECONDARY AND TERTIARY AMINES, WITH APPLICATION IN DEWATERING AND DESALTING OF HEAVY CRUDE OILS - A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (POE | 12-11-2014 |
20150087729 | SYNERGISTIC FORMULATIONS OF FUNCTIONALIZED COPOLYMERS AND IONIC LIQUIDS FOR DEHYDRATED AND DESALTED OF MEDIUM, HEAVY AND EXTRA HEAVY CRUDE OILS - The present invention is related to formulations including one or more block copolymers with low polydispersity and bifunctionalized with amines, and an ionic liquid. A method of demulsifying, dehydrating, and desalting crude oils having API gravity ranging between 8 to 30 admixes the formulation with the crude oil in an amount effective to demulsify, dehydrate and/or desalt the crude oils. | 03-26-2015 |