Bright stock

British Petroleum Corporation bright stock (heavy lubricating stock)... [Pg.499]

Cylinder oil is a viscous oil used for lubricating the cylinders and valves of steam engines (see Lubrication and lubricants). It is prepared from cylinder stock. The product from cylinder stock, when filtered and processed, is bright stock. [Pg.159]

The residues from the vacuum distillation can also be refined to provide very viscous lubricants. The residues from paraflmic base oils are generally solvent extracted and dewaxed. The main use of these products (bright stocks) is as blending components for heavy lubricants. Thus residues from naphthenic base oils, which are also used as blending components for heavy lubricants, are normally not extracted. [Pg.448]

Deposits can form within the combustion chamber of a gasoline engine. These deposits are complex in nature and can contain components from fuel combustion, from the lubricating oil, and from some additives. Typically, the heavier fuel and lubricant components such as condensed aromatics and bright stocks contribute most significantly to combustion chamber deposits. [Pg.47]

High-viscosity lubricating oil bright stock can enhance combustion chamber deposits... [Pg.265]

The combination of deasphalting and sulfuric acid treating is suitable for the production of bright stocks of conventional viscosity index from heavy petroleum residua. [Pg.175]

In commercial installation, the acid is applied to the deasphalted oil in propane solution and the sludge is removed by continuous settling. The acidic oil-propane solution is neutralized continuously with a solution of caustic and water-washed for removal of the last traces of caustic. The oil after removal of propane may be finished by conventional percolation through clay to produce a green cast finished bright stock (4). [Pg.175]

The settling of the acid sludge in the presence of propane is said to be sufficiently complete to allow neutralization with a small amount of fine-meshed clay, which is introduced into the acid oil-propane solution and passes with the oil through the propane recovery unit. The clay is removed from the oil by conventional filtration to produce a finished bright stock with a good color (48). [Pg.175]

These processes have made available a variety of microcrystalline waxes of low oil content and valuable properties (44) Neutral and bright stock lubricating oils with pour points of —30° to 0° F. have also become available commonly as result of this notable advance in technology. [Pg.275]

Bright stock - PETROLEUM - NOMENCLATURE IN THE PETROLEUM INDUSTRY] (Vol 18) - [SULFONATION AND SULFATION] (Vol 23)... [Pg.128]

Bright Stock—High-viscosity, fully refined and dewaxed lubricating oils produced by the treatment of residual stocks and used to compound motor oils. [Pg.1257]

Bright stock refined, high-viscosity lubricating oils usually made from residual stocks by processes such as a combination of acid treatment or solvent extraction with dewaxing or clay finishing. [Pg.421]

No. 2 fuel oil No. 4 fuel oil No. 5 fuel oil Bright stock No. 6 fuel oil Heavy residual Coke... [Pg.807]

Due to an increasing demand in performance of lubricants, characterizing a basestock is often complex and requires the measurement of many chemical and physical properties. Viscosity, which measures the fluidity of the basestock ranges from 2 to 20 cSt 100°C for Neutrals and can be as high as 32cSt for Bright stocks. The most common method used is Brookfield viscosity. The viscosity Index or VI... [Pg.168]

Type Bright Stock Heavy Neutral Light Neutral... [Pg.612]

Table S summarizes the range of values of the parameters n, kj, and E obtained from similar applications of the model to three light neutral, one heavy neutral, and four bright stocks.

Light Neutrals Heavy Neutrals Bright Stocks... [Pg.615]

FH. Cylinder and bright stocks, car journal, black FP. Specifications (of petroleum lubricants)... [Pg.165]

The development of vacuum distillation led to a major improvement in both paraffinic and naphthenic (low cold test) oils. By vacuum distillation the more viscous paraffinic oils (even oils suitable for bright stocks) could... [Pg.270]

Grade Spindle 150SN 500SN Bright stock... [Pg.15]

Each distillate or bright stock stream is processed separately because different process conditions are needed to obtain optimum results for each base oil grade. The main factors in operation of such a plant are the following ... [Pg.23]

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