초록 ▼

A method of reducing the viscosity of asphaltenic crude oils by incorporating into said crude oil an effective viscosity reducing amount of an oil soluble organic compound having at least one oleophobic and hydrophobic fluoroaliphatic group, and optionally a low viscosity diluent, and compositions t

A method of reducing the viscosity of asphaltenic crude oils by incorporating into said crude oil an effective viscosity reducing amount of an oil soluble organic compound having at least one oleophobic and hydrophobic fluoroaliphatic group, and optionally a low viscosity diluent, and compositions thereof.

대표청구항 ▼

A method of reducing the viscosity of an asphaltenic crude oil comprising incorporating into said crude oil an effective viscosity reducing amount of an oil soluble organic compound of the formula [(Rf)nR′]mZ(I) wherein n is an integer of 1-3; m is an integer of 1-5000; Rf is an inert, stable, ole

A method of reducing the viscosity of an asphaltenic crude oil comprising incorporating into said crude oil an effective viscosity reducing amount of an oil soluble organic compound of the formula [(Rf)nR′]mZ(I) wherein n is an integer of 1-3; m is an integer of 1-5000; Rf is an inert, stable, oleophobic and hydrophobic fluoroaliphatic group having about 4 to about 20 carbon atoms; R′is a direct bond or an organic linking group having a valency of n+1 and is covalently bonded to both Rf and Z, and (a) when n is 1 R′is selected from (i) -C1-C8 alkylene-, -phenylene-, -C1-C8alkylene- R1-C1-8alkylene-, -C3-C8 alkylene-R1-, -C1-2alkylene-R1″--R1-C1-8alkylene, -R1-C1-8alkylene-R1′-, -R1-, -R1-phenylene-, -R1-phenylene-R1′-, -R1-phenylene-C1-8 alkylene, and -phenylene-R1- wherein in each case, said alkylene is straight, or branched, or cyclic and in each case said alkylene and phenylene are independently unsubstituted or substituted by hydroxy, halo, nitro, carboxy, C1-6 alkoxy, amino, C1-6 alkanoyl, C1-6 carbalkoxy, C1-6 alkanoyloxy, or C1-6 alkanoylamino and said R1 and R1′- are each independently selected from －NR2－, －CO－, －N(R2)CO－, －CON(R2)－, －N(R2)COO－, －OOCN(R2)－, －S－, －SO－, －SO2－, －N(R2)SO2－, －SO2N(R2)－, －N(R2)CON(R2)－, －COO－ , －OOC－, －SO2O－, －OSO2－, [Figure] O; and R1″is selected from －NR2－, －CO－, －N(R2)CO－, －CON(R2)－, －NR2COO－, －OOCN(R2)－, －S－, －SO－, －SO2－, －N(R2)SO2－, －SO2N(R2)－, －N(R2)CON(R2)－, －COO－, －SO2O－－OSO2－, －OSO2O－, －OCOO－, [Figure] R2 is H, C1-6 alkyl which is unsubstituted or substituted by C1-6 alkoxy, halo, hydroxy, carboxy, C1-C6 carbalkoxy, C1-6 alkanoylamino, or C1-6 alkanoyloxy; or the nitrogen to which R2 is attached is quaternized by further being bound to R3 which R3 is H, C1-6 alkyl hydroxy- C1-6 alkyl, C1-6 alkoxy′C1-6 alkanoyloxy, or C1-6 carbalkoxy, the charge of the quaternized nitrogen being balanced by an anion; and (ii) an ionically bridged group of the formulae －(Ra′)sQ�T (Rb′)t(II) or －(Ra′)sT�Q (Rb′)t(III) wherein Ra′is -C1-8 alkylene-, -phenylene-, -C3-8 alkylene -R1-C1-8 alkylene-, -R1-C3-8 alkylene-, -R1-phenylene-, or -R1-phenylene-C1-8 alkylene-; Rb′is -C1-8 alkylene-, -phenylene-, -C1-8 alkylene -R1- C1-8 alkylene-, -C1-8 alkylene-R1-, -phenylene-R1-, or -C1-8 alkylene-phenylene-R1-; S and T are each independently zero or 1; and within said Ra′and Rb′, said alkylene and phenylene groups are unsubstituted or substituted by hydroxy, halo, nitro, carboxy, C1-6 alkoxy, amino, C1-6 alkanoyl, C1-6 carbalkoxy, C1-6 alkanoyloxy, or C1-6 alkanoylamino; T is a phenolic hydroxyl residue, carboxy, a sulfoxy, a sulfato, or a phosphono group; and Q is -N(R2)2R3; (b) when n is 2, R′is selected from the trivalent analogs of the groups within (a) above and further selected from C1-2 alkylene-OOC- which is unsubstituted or substituted by hydroxy, halo, nitro, carboxy, C1-6 alkoxy, amino, C1-6 alkanoyl, C1-6 carbalkoxy, C1-6 alkanoyloxy, or C1-6 alkanoylamino and still further selected from radicals of the formula [Figure] (IV) where u, v, and w are independently 0 or 1 and R0 is alkanetriyl, arenetriyl, or aralkanetryl, each having up to 18 carbon atoms and each being uninterrupted or interrupted by －O－, －S－, or －N(R2)－; and (c) when n is 3, R′is selected from the tetravalent analogs of the groups within (b) above; and Z is a hydrocarbyl containing residue having a valency of n and is sufficiently oleophilic so as to impart an oil solubility to said compounds of at least 10 parts per million by weight of said asphaltenic crude oil.