Abstract:
Use of polymeric two-phase systems for removing microbial contaminants from industrial lubricating agents, a method of purifying microbial contaminated lubricating agents by mixing the lubricating agent with a polymeric two-phase system, allowing the mixture to separate so as to form a top-phase containing the lubricating agent and a bottom-phase containing at least part of the microbial contaminants, and separating at least a major part of the microbially enriched bottom-phase from the top-phase, a plant for microbial purification of lubricating agents comprising a mixing tank (4) having means (7, 8) for feeding microbially contaminated lubricating agent (S) to the mixing tank, means (13) for feeding a polymeric two-phase system to the mixing tank, a stirrer (5) in the mixing tank, means (9, 10) for feeding the mixture to a separation device (6) for separating the mixture into a top-phase (T) containing lubricating agents, and a bottom-phase (B) containing microbial contaminants, and means (18) for recovering the top-phase of the two-phase system, and a lubricating agent concentrate, in which at least part of the lubricating agent at the same timeforms part of the top-phase component of the polymeric two-phase system.
Abstract:
A method for improving wear control, while maintaining or improving fuel efficiency, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and (i) at least one transition metal salt of a carboxylic acid (e.g., zinc stearate) or (ii) a mixture of at least one transition metal salt of a carboxylic acid (e.g., zinc stearate) and at least one detergent (i.e., an alkali metal or alkaline earth metal salt of an organic acid, or an alkali metal or alkaline earth metal salt of an inorganic acid, or an alkali metal or alkaline earth metal salt of a phenol, or mixtures thereof (e.g., calcium salicylate and/or magnesium sulfonate), as a minor component. The lubricating oils are useful in internal combustion engines.
Abstract:
We provide a SAE 15W-30 lubricating oil, comprising: a Group II base oil having a KV at 100°C from 5.0 to 8.0 mm 2 /s; a second Group II base oil having a KV at 100°C from 10 to 14 mm 2 /s; a DI additive package designed to meet API CJ-4; and 0.50 to 4.95 wt % viscosity modifier; wherein the lubricating oil has a TBN from 8.55 to 11.00 and provides an Induction Time in a CMOT from 270 to 450 minutes. We also provide a process for making the lubricating oil, comprising: blending the Group II base oils to make a blended base oil mixture and adding to the blended base oil mixture: a DI additive package designed to meet API CJ-4, and a viscosity modifier; wherein the lubricating oil has a TBN from 8.55 to 11.00 and provides an Induction Time in a CMOT from 270 to 450 minutes.
Abstract:
Die Erfindung betrifft eine Gleitlackbeschichtung (11, 12, 41, 42, 43) und einen Gleitlackschichtverbund (10) mit wenigstens 25 Vol.-% eines Binders (16) und mit Füllstoffen, die Zinksulfid (18) und Bariumsulfat (20) und wahlweise weitere Füllstoffe umfassen, wobei das Volumenverhältnis von Zinksulfid (18) zu Bariumsulfat (20) zwischen 0,1 und 15,7, bevorzugt zwischen 0,8 und 4,88 und besonders bevorzugt zwischen 1,5 und 3,44 beträgt. Der Gleitlackschichtverbund (10) weist wenigstens zwei Gleitlackbeschichtungen (11, 13) dieser Art mit unterschiedlicher Zusammensetzung auf. Die Erfindung betrifft weiterhin Gleitlager-Schichtverbundwerkstoffe mit solchen Beschichtungen und deren Verwendung in Verbrennungsmotoren.
Abstract:
A method for reducing color in used lubricating oil. The method comprises combining: (i) a used lubricating oil; (ii) an alkali metal borohydride; and (iii) a bisulfite or metabisulfite salt.
Abstract:
La présente invention se rapporte à une composition de démoulage, destinée à la fabrication de pièces en matériau à prise hydraulique, comprenant en pourcentage en masse par rapport à la masse de la composition de démoulage, au moins: - de 10 à 20% d'une huile; - de 1 à 5% d'un agent hydrofuge; - de 0,1 àl% d'un sel de calcium; - de 0,5 à3% d'un tensioactif non-ionique ou un mélange de tensioactifs ayant un rapport hydrophile - lipophile (HLB) supérieure à 8; et - de l'eau.
Abstract:
The object of the invention is a traction sheave elevator and a rope (3) that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands (7) laid from metal wires (9) and which rope (3) is lubricated with a lubricant (8). Another object is the use of the aforementioned lubricant for lubricating the rope (3). The lubricant (8) comprises at least oil and thickener, which thickener in the lubricant (8) comprises at least 10% or more of the mass of the lubricant (8).
Abstract:
A lubricating composition comprising: (i) from 50% to 99% by weight of base oil; (ii) from 0.01% to 5% by weight of ionic liquid; and (iii) from 0.01% to 10% by weight of additive; wherein the lubricating composition has a pour point of at most -54°C, a flashpoint of at least 246°C and a kinematic viscosity at 100°C in the range of from 4.9 to 5.4 mm 2 /s. The lubricating compositions according to the present invention are suitable for use in turbine engine oils and are useful for reducing the build up of sludge and for reducing coking in the lubricating composition.
Abstract:
The resistance to oxidation of a lubricating oil is enhanced by the addition to the lubricating oil of an additive amount of an ionic liquid.