The present teachings are directed toward the invention of high-performance diesel fuel lubricity additives that are comprised of a mixture of one or more C3-C10 di-carboxylic acids with a mixture of one or more C3-C14 carboxylic acids that are blended in one or more C3-C16 hydroxy-alkanes. These additives may be produced by blending one or more C3-C14 carboxylic acids, C3-C10 di-carboxylic acids and C3-C16 hydroxy-alkanes, or by using various chemical synthesis procedures to directly produce mixtures of these classes of oxygenated aliphatic hydrocarbons.
Certain branched carboxylic acids may serve as improved lubricity additive compositions in distillate fuels, and in particular for cold weather applications. Suitable branched carboxylic acids may include, but are not necessarily limited to, isostearic acid, neodecanoic acid, isononanoic acid, neononanoic acid, neoundecanoic acid, isovaleric acid, pivalic acid, and the like and mixtures thereof. The branched carboxylic acids may be used alone or together with straight chain carboxylic acids, and optionally with an aromatic solvent.
本发明涉及用于燃料，特别是用于柴油燃料的润滑性添加剂，其直接得自于通过用于精炼至少一种植物油和/或动物油的方法而生产的皂料的酸化。根据本发明的润滑性添加剂更具体地用于具有低硫含量例如低于500ppm(按重量计)的燃料。
A fuel composition comprising a major amount of a gasoline fuel having a maximum sulfur content of 150 ppm by weight and a minor amount of at least one gasoline fuel additive having detergent action or having a valve seat wear-inhibiting action, wherein this gasoline fuel additive has at least one hydrophobic hydrocarbon radical having a number-average molecular weight (MN) of from 85 to 20 000 and at least one polar moiety, and wherein the fuel composition also has a content of at least one lower alkanol of from about 5 to 75% by volume.
The present invention discloses a single package additive for improving lubricity and conductivity properties of ultra-low sulfur diesel fuels. The single package additive is a reaction product of a fatty acid composition, a glycerol tricarboxylates, a polysulfone, a polyamine, an alkylated benzene sulfonic acid and a phenol derivative. More specifically, the present invention discloses a reaction product of: a fatty acid composition in the range of 60-95% wt/wt; a glycerol tricarboxylate in the range of 0.1-10.0% wt/wt; a polysulfone in the range of 0.1-5.0% wt/wt; a polyamine in the range of 0.1-5.0% wt/wt; an alkylated benzene sulfonic acid in the range of 0.1-5.0% wt/wt; and a phenol derivative in the range of 0.1-10.0% wt/wt. The present invention also discloses a single-pot process for the preparation of said reaction product.
The present invention relates to a additive composition for use as lubricity improver for low sulphur diesel, comprising c) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid (CNSL esters) of formula (I); f) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid of formula (II); g) 50-95% by weight of free fatty acid of the formula RCOOH in which R represents an alkyl/alkenyl group with 12 to 24 carbon atoms. h) 1-30% by weight of synthetic esters derived by esterifying tri, tetra, penta hydric alcohols with carboxylic acids such as lauric, palmitic, linoleic, ricinoleic etc.
本发明涉及一种酸型柴油抗磨剂的制备方法，属于柴油抗磨剂技术领域。本发明从制备工艺方面提出创新，本发明优选合适的混合脂肪酸，经静态冷冻结晶制得ΣSFA含量3～4％的酸型柴油抗磨剂半成品；使用尿素包合法，进一步降低半成品中ΣSFA含量，达到小于2.5％。本发明具有生产周期短、产品收率高、投资成本低、生产工艺简单、物耗和能耗低、产品改善柴油润滑性能佳等优点。
LA INVENCION SE REFIERE A CONCENTRADOS DE ADITIVOS PARA CARBURANTES Y LUBRICANTES, QUE CONTIENEN POR LO MENOS UN DERIVADO DE ANTRAQUINONA COMO SUSTANCIA MARCADORA, AL USO DE TALES CONCENTRADOS PARA LA ADITIVACION DE ACEITES MINERALES, ASI COMO A ACEITES MINERALES, QUE CONTIENEN TALES CONCENTRADOS.
High molecular weight, oil-soluble, mono- and polycarboxylic acid esters are posttreated with mono- or polycarboxylic acid acylating reagents to provide compositions useful as dispersants in lubricants and fuels. Esters of polyisobutenyl-substituted succinic anhydride and pentaerythritol posttreated with maleic anhydride exemplify the process and compositions of this invention.
