Abstract:
The fouling of ports and/or valves in diesel engines by carbonaceous deposits when operated with a distillate diesel fuel, a residual fuel oil, or a mixture thereof, is prevented by uniformly mixing with the fuel a source of silica selected from organic and inorganic silicon compounds which provide free SiO2 at fuel combustion temperature, such source of silica being present in an amount to provide 30-300 ppm. of SiO2 in the fuel. Suitable sources of silica are silica itself (e.g. of 5-10 millimicron particle size), and a solution of tetraethyl orthosilicate in methyl naphthalene. Specifications 777,518 and 842,821 are referred to.
Abstract:
Use of a hydrocarbyl-substituted dicarboxylic acid for improving or boosting the separation of water from fuel oils and gasoline fuels which comprise additives with detergent action. A Fuel additive concentrate comprising the said hydrocarbyl-substituted dicarboxylic acid, certain additives with detergent action and optionally other customary additives and solvents or diluents.
Abstract:
There are disclosed energetic nanoparticle compositions and materials containing silicon and other energetic elements, and methods of manufacturing the same, including reacting silicon nanoparticles and unsaturated alkene or alkyne to form covalently bonded surface coatings passivated against surface oxidation, for combination with a fuel, explosive or oxidizer.
Abstract:
C5- to C15-alkanols are suitable for improving the defoamer action of a silicon-containing anti-foam in fuel oils, especially in biofuel oils, which comprise at least one additive with detergent action. Such alkanols are used in additive concentrates which also comprise aromatic hydrocarbons or hydrocarbon mixtures having a boiling point of 100 to 250° C. or C5- to C12-alkyl nitrates, and also silicon-containing antifoams, additives with detergent action and optionally commercial dehazers.
Abstract:
A fuel additive comprising a sol containing particles of at least one inorganic-metallic component and at least one organo-metallic component stabilized in a suitable hydrocarbon medium. The components are formed as a metal complex wherein the metallic element comprises at least one metal selected from the elements of Groups VIII to XI in the Periodic Table, preferably platinum, cobalt, nickel, copper, gold, rhodium or, most preferably, palladium. The organo component is an alkyl carboxylate, preferably acetate, and the inorganic component is derived from silicon, titanium, aluminum, and preferably silicate. The additive is preferably formed by (a) forming an aqueous solution of at least one metallic component; (b) forming a colloid of organo-metallic and inorganic-metallic components from said solution; and (c) extracting at least some of the metallic colloidal components from the aqueous solution using a suitable hydrocarbon medium under controlled PH, temperature and time.
Abstract:
Chemical heating using a first reactant, a second reactant and a complexing agent adapted to complex reversibly with the first reactant and, thereby moderate the reaction between the first and second reactants. The heating formula is particularly well suited for heaters that are used to heat materials having relatively high viscosities.
Abstract:
A composition is disclosed that comprises: (A) a lubricant or a hydrocarbon fuel, and (B) at least one polysiloxane of the formula: MwD′xDyM′z where: w is 2-z; x is 0 to 50; y is 0 to 500; z is 0 to 2; M=Si(CH3)3—O—; M′=R1—Si(CH3)2O—; D=—Si(CH3)2O—; D′=—Si(CH3)(R1)O—; and R1 is an aliphatic or aromatic moiety linked to at least one silicon atom from siloxane and comprising at least one heteroatom.
Abstract translation:公开了一种组合物,其包含:(A)润滑剂或烃燃料,和(B)至少一种下式的聚硅氧烷:<?in-line-formula description =“In-line Formula”end =“lead”? ?In w w w y y y y y y y <<<<<<<<其中:w是2-z; x为0〜50; y为0〜500; z为0〜2; M = Si(CH 3 3)3 -O-; M'= R 1 -Si(CH 3)2 O - ; D = -Si(CH 3)2 O 2; D'= -Si(CH 3 3)(R 1)O - ; 并且R 1是与至少一个硅原子连接并包含至少一个杂原子的脂族或芳族部分。