摘要:
A low overbased alkyl phenyl sulfonate prepared by the neutralization of sulfonic acid with a sulfurized high TBN calcium alkylphenate in the absence of chloride and in the absence of additional carboxylic acid.
摘要:
Dispersant detergent additives for lubricating oils prepared by neutralization, carboxylation, sulfurization-overalkalinization, carbonation, distillation, filtering and degassing from alkyl phenols containing 35-85% by weight of linear alkyl substituents. The process does not require, during the neutralizing phase, the presence of a third solvent, which, by forming an azeotropic mixture with water promote the elimination of water arising from the neutralizing reaction. The additives of the invention have improved stability to hydrolysis and improved dispersion properties, improved compatibility and improved foaming properties.
摘要:
The present invention provides an ashless lubricating oil composition that improves the corrosion properties in natural gas engines. The ashless lubricating oil composition comprises:a) a major amount of base oil of lubricating viscosity;b) from about 1 to 6 wt % of an untreated polyalkylene or polyalkenyl succinimide dispersant; andc) from about 1 to 6 wt % of a borated polyalkylene or polyalkenyl succinimide dispersant.
摘要:
The method of the invention includes making dimethyinaphthalenes by first contacting, in an alkylation zone, at alkylation conditions, a toluene-containing stream with a pentene-containing stream in the presence of an acid alkylation catalyst. At least a portion of the toluene and pentenes react to form pentyltoluenes. At least a portion of the pentyltoluenes is then contacting in a reforming zone with reforming catalyst, at reforming conditions. At least a portion of the pentyltoluenes is converted to dimethylnaphthalenes.
摘要:
Pyridyl and piperidyl esters of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein A is selected from the group consisting of 3-pyridyl, 4-pyridyl, 3-piperidyl, and 4-piperidyl;R.sub.1 is a polyalkyl group having an average molecular weight in the range of from about 450 to 5,000; andR.sub.2 and R.sub.3 are independently hydrogen or lower alkyl having from about 1 to 6 carbon atoms.The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.
摘要:
A diesel fuel composition comprising a major amount of hydrocarbons boiling in the diesel range and an effective lubricity enhancing amount of a salt of an alkyl hydroxyaromatic compound and an aliphatic amine, wherein the salt has the formula: ##STR1## wherein R is alkyl of 6 to 25 carbon atoms; R.sub.1 is alkyl or alkenyl of 6 to 50 carbon atoms; and X is hydrogen, hydroxy or the group --O.sup.- H.sub.3 N.sup.+ --R.sub.2, wherein R.sub.2 is alkyl or alkenyl of 6 to 50 carbon atoms.
摘要:
A method is disclosed for preparing crystalline aluminosilicate zeolite L from a reaction mixture containing only sufficient water to produce zeolite L. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals.
摘要:
Oxygen scavenging materials incorporated into or attached to a package such as a gable-top or rectangular carton, used to package foods, beverages or other oxygen sensitive materials, and thereby increase shelf-life by decreasing oxygen in the headspace of the package, and decreasing oxidation of the packaged product.
摘要:
A fuel additive composition comprising:(a) an aromatic ester compound of the formula: ##STR1## or a fuel soluble salt thereof, wherein R is hydroxy, nitro or --(CH.sub.2).sub.x --NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms and x is 0 or 1;R.sub.1 is hydrogen, hydroxy, nitro or --NR.sub.7 R.sub.8, wherein R.sub.7 and R.sub.8 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms;R.sub.2 and R.sub.3 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; andR.sub.4 is a polyalkyl group having an average molecular weight in the range of about 450 to 5,000; and(b) an aliphatic hydrocarbyl-substituted amine having at least one basic nitrogen atom, wherein the hydrocarbyl group has a number average molecular weight of about 400 to about 1,000.The fuel additive compositions of this invention are useful as fuel additives for the prevention and control of engine deposits.
摘要翻译:一种燃料添加剂组合物,其包含:(a)下式的芳族酯化合物或其燃料可溶性盐,其中R是羟基,硝基或 - (CH 2)x -NR 5 R 6,其中R 5和R 6独立地是氢或具有 1至6个碳原子,x为0或1; R 1是氢,羟基,硝基或-NR 7 R 8,其中R 7和R 8独立地是氢或具有1至6个碳原子的低级烷基; R2和R3独立地是氢或具有1-6个碳原子的低级烷基; 并且R 4是平均分子量在约450至5,000范围内的聚烷基; 和(b)具有至少一个碱性氮原子的脂族烃基取代的胺,其中烃基的数均分子量为约400至约1,000。 本发明的燃料添加剂组合物可用作预防和控制发动机沉积物的燃料添加剂。
摘要:
The present invention relates to a method of using nickel alumina catalyst to isomerize linear alpha olefins substantially completely to linear internal olefins with no significant increase in branch internal olefin content.