Abstract: The present invention relates to a process for the recovery of bitumen from an oil sand comprising the following phases in succession: (a) mixing an oil sand with a diluent capable of reducing the viscosity and density of the bitumen contained in said oil sand, obtaining a first mixture (slurry) comprising diluted bitumen; (b) mixing said slurry with a basic aqueous solution (BAS) possibly containing salts to increase its ionic strength, capable of removing said diluted bitumen from said oil sand containing it, obtaining a second mixture (BAS-slurry) which can be separated into (i) a liquid phase comprising said diluted bitumen, a fraction of oil sand free of the bitumen removed and water; (ii) a sediment comprising the remaining fraction of said oil sand free of the bitumen removed, water and residual hydrocarbons which can be eliminated by subsequent washings; (c) separating a liquid phase comprising said diluted bitumen removed, from said BAS-slurry mixture; (d) recovering, from said liquid phase separated

Abstract: The present invention relates to a process for the recovery of bitumen from an oil sand comprising the following phases in succession: (a) mixing an oil sand with a diluent capable of reducing the viscosity and density of the bitumen contained in said oil sand, obtaining a first mixture (slurry) comprising diluted bitumen; (b) mixing said slurry with a basic aqueous solution (BAS) possibly containing salts to increase its ionic strength, capable of removing said diluted bitumen from said oil sand containing it, obtaining a second mixture (BAS-slurry) which can be separated into (i) a liquid phase comprising said diluted bitumen, a fraction of oil sand free of the bitumen removed and water; (ii) a sediment comprising the remaining fraction of said oil sand free of the bitumen removed, water and residual hydrocarbons which can be eliminated by subsequent washings; (c) separating a liquid phase comprising said diluted bitumen removed, from said BAS-slurry mixture; (d) recovering, from said liquid phase separated

Abstract: The present invention relates to an upstream-downstream integrated process for the upgrading of a heavy crude oil with the capture of CO2, comprising the following operative steps: a) production of a heavy crude oil from a reservoir; b) distillation of said heavy crude oil, at atmospheric pressure or under vacuum, with the separation of a distilled fraction and a hydrocarbon residue containing asphaltenes; c) solvent deasphalting of said hydrocarbon residue containing asphaltenes with the formation of a precipitate of asphaltenes and a deasphalted oil (DAO); d1) oxy-combustion of said precipitate of asphaltenes in pure oxygen with the formation of a stream of exhausted gases comprising CO2 and water vapour; d2) as an alternative to said oxy-combustion, gasification of said precipitate of asphaltenes in pure oxygen with the formation of a stream of syngas which is subsequently transformed into a gas stream comprising CO2 and H2; e) separation of a substantially pure gaseous stream of CO2 from said stream of ex

Abstract: A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I), wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H and CH3; R1, R2, R3, the same or different, are selected from C1–C10 monofunctional hydrocarbyl groups; and x ranges from 2 to 5.

Abstract: A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (1) [] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.

Abstract: A process is described for reducing the production of water in oil wells, with temperatures of up to (90° C.), which comprises the injection in the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I) wherein: n ranges from (0.40) to (0.70), preferably from (0.5) to (0.65); m ranges from (0.15) to (0.65), preferably from (0.3) to (0.5); p ranges from (0.02) to (0.20), preferably from (0.05) to (0.

Abstract: A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (1) [ ] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.

Abstract: A process is described for reducing the production of water in oil wells, with temperatures of up to (90° C.), which comprises the injection in the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I) wherein: n ranges from (0.40) to (0.70), preferably from (0.5) to (0.65); m ranges from (0.15) to (0.65), preferably from (0.3) to (0.5); p ranges from (0.02) to (0.20), preferably from (0.05) to (0.10); n+m+p=1; x1 is selected from H and CH3; R1, R2 the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups.

Abstract: Electrolytic membrane for light rechargeable batteries essentially consisting of:1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the general formula (I) R--?--O--CH.sub.2 CH.sub.2 --!.sub.n --O--CH.dbd.CH.sub.2, and a divinyl ether having the general formula (II) CH.sub.2 .dbd.CH--?--O--CH.sub.2 --CH.sub.2 --!.sub.m --O--CH.dbd.CH.sub.2, in a quantity of between 15 and 60% by weight;2) plasticizer in a quantity of between 35 and 75% by weight;3) Lithium salt in a quantity of between 5 and 20% by weight;4) photopolymerization initiator in such a quantity as to photopolymerize (I) and (II);5) zeolite in a quantity of between 3 and 30% by weight;the percentage sum of components (1) to (5) being equal to 100.

Abstract: Process for the preparation of a current collector in contact with the cathode material in light rechargeable solid state batteries, characterized by the fact that it includes the deposition on a nickel layer having a rugosity R.sub.a from 1 to 3 microns of a cathode paste comprising1) a powder of active cathode material;2) an electronic conductor;3) a polymeric composition comprising:3a) a polymer deriving from the polymerization of a mixture of a vinyl ether and a divinyl ether;3b) lithium salts, selected from LiBF.sub.4 alone or in a mixture with other salts;3c) optionally, a plasticizer selected from dipolar aprotic solvents and polyethers with a low molecular weight and their relevant mixtures.

Abstract: Composite cathode comprising:(A) a powder of active cathode material;(B) an electronic conductor;(C) an electrolyte essentially constituted by a polymer composition comprising:(C.sub.1) a polymer deriving from the polymerisation of a vinyl ether and a divinyl ether;(C.sub.2) litium tetrafluoroborate alone or in a mixture with other lithium salts.The above-mentioned composite cathode can be employed in solid electrolytic cells.

Abstract: Electrolytic membrane for light rechargeable batteries essentially consisting of:1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the general formula (I) R--?--O--CH.sub.2 CH.sub.2 --!.sub.n --O--CH.dbd.CH.sub.2, and a divinyl ether having the general formula (II) CH.sub.2 .dbd.CH--?--O--CH.sub.2 --CH.sub.2 --!.sub.m O--CH.dbd.CH.sub.2, in a quantity of between 15 and 60% by weight;2) plasticizer in a quantity of between 35 and 75% by weight;3) Lithium salt in a quantity of between 5 and 20% by weight;4) photopolymerization initiator in such a quantity as to photopolymerize (I) and (II);5) zeolite in a quantity of between 3 and 30% by weight;the percentage sum of components (1) to (5) being equal to 100.

Abstract: A solid polymeric electrolytic membrane comprising a solution of an ion compound in a cross-linked polyether including a liquid plasticizer obtained by:a) copolymerizing a vinyl ether of the formula:R--(O--CH.sub.2 --CH.sub.2 --).sub.n --O--CH=CH.sub.2 (I)with an allyl vinyl ether of the formula:CH.sub.2 =CH--CH.sub.2 --(O--CH.sub.2 --CH.sub.2 --).sub.m --O--CH=CH.sub.

Abstract: The instant invention provides a solid, polymeric electrolyte in membrane form, constituted by a solid solution of an ionic compound in a crosslinked polyether, characterized in that said polymeric electrolyte is obtained by (1) blending a prepolymer, an ionic compound, a plasticizer, and a free-radical-generating activator; and (2) applying the resulting blend on an inert carrier and exposing said blend to a source of ultraviolet light, thermal radiation or electron beam, until the blend is completely crosslinked. The instant invention also provides an electrolyte separator for use in electrochemical devices, optical and electrochemical displays and sensors, which comprises the polymeric electrolyte of the instant invention.

Abstract: Process for preparing a solid, polymeric electrolyte, in membrane from, characterized in that:(1) a mixture is prepared, which contains:(a) a vinyl ether (I) of formulaR--(--O--CH.sub.2 --CH.sub.2 --).sub.n --O--CH.dbd.CH.sub.2wherein R=Me or Et and n is an integer comprised within the range of from 1 to 16;(b) a divinyl ether of formulaCH.sub.2 .dbd.CH--(--O--CH.sub.2 --CH.sub.2 --).sub.m --O--CH.dbd.CH.sub.2wherein m is integer comprised within the range of from 1 to 10, in a molar ratio to the vinyl ether (I) comprised within the range of from 2:98 to 60:40;(c) an ionic compound in an amount comprised within the range of from 1 to 30% by weight;(d) an oligomer or a dipolar aprotic liquid in an amount comprised within the range of from 0 to 80% by weight;(e) a photoinitiator in an amount comprised within the range of from 0 to 10% by weight;(2) the above mixture is applied onto an inert support and is exposed to a source of ultraviolet light, or to an electron beam.

Abstract: An electrochromic window comprises a tungsten oxide electrode on a transparent conductive glass sheet and a nickel oxide counterelectrode. The counterelectrode is activated by electrochemical intercalation of lithium on a transparent conductive glass sheet. The window also comprises a solid polymeric electrolyte interposed between the electrode and the counterelectrode. The electrolyte is formed by a solid solution of an ionic lithium compound in a solid crosslinked polyepoxide. The polyepoxide is obtained by copolymerization of a monoepoxide with a diepoxide.

Abstract: A solid, polymeric electrolyte is prepared by:1) blending:(a) a macromer of formula (I) ##STR1## wherein R =methyl, ethyl, n is an integer comprised within the range of from 2 to 20, x is an integer comprised within the range of from 2 to 5;(b) a difunctional comonomer of formula (II) CH.sub.2 .dbd.C(CH.sub.3)COO(CH.sub.2 CH.sub.2 O).sub.m --CO--(CH.sub.3)C.dbd.CH.sub.2 wherein m is an integer comprised within the range of from 2 to 5; with a molar ratio of the macromer (I) to the difunctional comonomer (II) comprised within the range of from 98:2 to 60:40;(c) an ionic compound in an amount comprised within the range of from 1 to 30% by weight;(d) an oligomer or a dipolar aprotic liquid in an amount comprised within the range of from 0 to 80% by weight;(e) a photoinitiator in an amount comprised within the range of from 0 to 10% by weight; 2) applying the above mixture on an inert support and exposing it to a source of ultraviolet light, thermal radiations, or electron beam.

Abstract: A solid polymer electrolyte in membrane form, consisting of a solid solution of an ionic compound dissolved in a polyether, is obtained by copolymerizing a vinyl ether with an allyl vinyl ether to obtain a copolymer with allyl unsaturations; hydrosilylating the allyl double bond of this copolymer by reaction with an alkoxysilane to obtain a hydrosilylated copolymer; and cross-linking the hydrosilylated copolymer by means of a diprotic cross-linking agent, operating in solution in an organic solvent in the presence of an ionic compound, and evaporating the solvent to obtain a membrane.

Abstract: A solid, polymeric electrolyte is constituted by a solid solution of an ionic compound in a polyepoxide, wherein said polyepoxide is the product of copolymerization of a monoepoxide of formula: ##STR1## wherein: R stands for methyl or ethyl radical; andn is an integer comprised within the range of from 2 to 10;with a diepoxide of formula: ##STR2## wherein: m is an integer comprised within the range of from 2 to 10;with a molar ratio of monoepoxide to diepoxide comprised within the range of from 99.9/0.1 to 90/10;with said polyepoxide furthermore having a weight average molecular weight equal to, or higher than, 1,000, and a glass transition temperature (Tg) of from -80.degree. to -60.degree. C.The solid, polymeric electrolyte can be converted into an electrochemical membrane useful in the manufacture of high-energy-density electrochemical generators, optical displays, electrochromic systems and sensors.

Abstract: A solid polymeric electrolyte is constituted by a solid solution of an ionic compound in an organic matrix of polyether nature, constituted by a mixture consisting of:a high-molecular-weight poly-(ethylene oxide); andthe product of polymerization of a vinylether having the formula:R--(O--CH.sub.2 --CH.sub.2).sub.n --O--CH.dbd.CH.sub.2wherein:R means the methyl or ethyl radical; andn is an integer within the range of from 2 to 6,with said polyvinylether having a number average molecular weight within the range of from about 1,000 to about 10,000 and the weight ratio of said poly(ethylene oxide) to said polyvinylether being within the range of from 10:90 to 90:10.