Abstract:
A lubricating composition comprises a mineral, vegetable, animal, silicone or synthetic polyester oil in admixture with a minor proportion of a homopolymer or copolymer of an N-3-oxohydrocarbon-substituted acrylamide of the formula R.CO.R1-NHCOC(R11)=CH2 wherein R and R11 represent hydrogen or C1- 10 alkyl or cycloalkyl radicals and R1 represents an ethylene radical or an ethylene radical substituted by a C1- 10 alkyl or cycloalkyl group, with the proviso that at least one such group is on the carbon atom attached to the nitrogen atom of the acrylamide group. The composition may contain as additional ingredients sulphonates, thiophosphates, phosphites,amines, phenols, disulphides and chlorinated wax.ALSO:Novel N-3-oxohydrocarbon-substituted acrylamides of the formula R.CO.R1-NHCOC(R11) = CH2 wherein R and R11 represent hydrogen or C1- 10 alkyl or cycloalkyl radicals and R1 represents an ethylene radical or an ethylene radical substituted by a C1- 10 alkyl or cycloalkyl group, with the proviso that at least one such group is on the carbon atom attached to the nitrogen atom of the acrylamide group, are prepared by reacting at a temperature below 100 DEG C. one mol. of an acrylonitrile of the formula CH2 = C(R11)-CN with either one mole of a beta-hydroxy oxohydrocarbon of the formula R.COC(R111)2.C(R111)2-OH or two moles of an aliphatic oxohydrocarbon of the formula R1.COCH(R2)2 in the presence of at least one mole of sulphuric acid, and subse hydrolysing the product, R111 representing hydrogen or a C1- 10 alkyl or cycloalkyl group, with the proviso that if any R111 represents a C1- 10 alkyl or cycloalkyl group at least one of the R111 radicals on the carbon atom adjacent the OH group represents a C1- 10 alkyl or cycloalkyl group, and each of R1 and R2 representing hydrogen or a C1- 10 alkyl or cycloalkyl radical, with the proviso that the sum of the carbon atoms in the two R2 groups does not exceed 9.ALSO:N - 3 - Oxohydrocarbon - substituted acrylamides of the formula R.CO.R1-NHCOC(R11)=CH2 wherein R and R11 represent hydrogen or C1- 10 alkyl or cycloalkyl radicals and R1 represents an ethylene radical or an ethylene radical substituted by a C1- 10 alkyl or cycloalkyl group, with the proviso that at least one such group is on the carbon atom attached to the nitrogen atom of the acrylamide group, are polymerized alone or in admixture with other ethylenically unsaturated compounds in the presence of azo, peroxide, sodium in ammonia, Ziegler, metal aryl or metal alkyl catalysts, or using heat or gamma ray irradiation. Suitable comonomers include esters of unsaturated alcohols, polyols or unsaturated acids, vinyl cyclic compounds, vinyl halides and unsaturated ethers, ketones, amides, aliphatic hydrocarbons, acids, acid anhydrides, acid chlorides and nitriles. Examples describe the preparation of homopolymers, copolymers and terpolymers using as comonomers decyl acrylate, vinyl acetate, mixtures of dialkyl fumarates, N-vinyl pyrrolidone, N-vinyloxazolidone, isoprene and acrylonitrile, and employing benzene/azobisisobutyronitrile or benzoyl peroxide, tetrahydrofuran/sodium naphthalene or sodium/liquid ammonia solvent/catalysts systems.
Abstract:
An additive formulation suitable for antistatic modification and improving the electrical conductivity of inanimate organic material, consisting essentially of (A) from 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) from 1 to 50% by weight of a compound which comprises one or more basic nitrogen atoms and has at least one relatively long-chain linear or branched hydrocarbon radical having at least four carbon atoms or an equivalent structural element which ensures the solubility of component (B) in the inanimate organic material, (C) from 0.1 to 30% by weight of an oil-soluble acid and (D) from 1 to 80% by weight of a high-boiling organic solvent which consists of one or more molecule types, where at least 80% by weight of these molecule types have a boiling point of more than 150° C. at standard pressure, where the sum of all components adds up to 100% by weight.
Abstract:
Novel uses of copolymers for removing and/or reducing the level of deposits in the fuel system and/or injection system of direct injection diesel and/or gasoline engines are provided. What is provided is the use of particular copolymers as fuel additive or lubricant additive; to processes for preparation of such additives, and fuels and lubricants added therewith, such as, more particularly, as a detergent additive; to use of these copolymers for reducing the level of or preventing deposits in the fuel systems and especially the injection systems of direct injection diesel engines, especially in common rail injection systems, for reducing the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimizing power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.
Abstract:
Haze may be removed from a biofuel or biofuel intermediate by using a clarifier. The clarifier includes copolymer prepared using a formulation comprising an alpha olefin and maleic anhydride. The clarifier may also be used with admixtures of biofuels, biofuel intermediates, or biofuel feedstocks with conventional hydrocarbons.
Abstract:
The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric imides for use with such fuel oil compositions, and to methods for their manufacture.
Abstract:
A multipurpose chemical additives (MPC) is disclosed to mitigate fouling in hydrocarbon refinery processes, such as in a heat exchanger. A method for reducing fouling of a hydrocarbon is also disclosed that includes (i) providing a crude hydrocarbon for a refining process; and (ii) adding an additive to the crude hydrocarbon.
Abstract:
Method and system for predicting a need for introducing anti-fouling additives to a hydrocarbon stream in a hydrocarbon refinery. The method comprises characterizing whether the hydrocarbon stream is a non-high solvency dispersive power (“HSDP”) crude and performing at least one of determining whether the hydrocarbon stream is subject to filterable solids levels greater than about 100 wppm or classifying whether the hydrocarbon stream has an expected low flow velocity during normal operating conditions within the refinery. The method further comprises indicating, using a processor, that anti-fouling additives are recommended if the hydrocarbon stream is characterized to be a non-HSDP crude and either the hydrocarbon stream is determined to be subject to filterable solids levels greater than about 100 wppm or the hydrocarbon stream is classified as having expected low flow within a heat exchanger of the refinery.
Abstract:
A method for treating an emulsion of a hydrocarbon is disclosed. The method includes providing an emulsion of a crude hydrocarbon, and adding an additive to the emulsion to obtain a treated hydrocarbon.
Abstract:
The invention provides additive mixtures comprising A) at least one terpolymer of ethylene, propene and at least one ethylenically unsaturated ester, which i) contains from 6.0 to 12.0 mol % of structural units derived from at least one ethylenically unsaturated ester having a C1- to C3-alkyl radical, ii) contains from 0.5 to 4.0 methyl groups derived from propene per 100 aliphatic carbon atoms, iii) has fewer than 8.0 methyl groups stemming from chain ends per 100 CH2 groups, and B) from 0.5 to 20 parts by weight, based on A), of at least one further component which is effective as a cold additive for mineral oils and is selected from B1) copolymers of ethylene and ethylenically unsaturated compounds whose content of ethylenically unsaturated compounds is at least 2 mol % higher than the content of ethylenically unsaturated esters in the terpolymer defined under A), B2) comb polymers, and B3) mixtures of B1) and B2), and also their use as a cold additive for middle distillates.