Environmentally considerate ester lubricants for the automotive and engineering industries

Randles, S. J.

doi:10.1002/jsl.3000090205

Cited by 108 publications

(49 citation statements)

References 3 publications

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“…Vegetable oil based lubricants are environmentally preferred to petroleum based oils due to their low volatility, high flash point, favorable viscosity temperature characteristics and excellent biodegradability 1 3 . Vegetable oils are from renewable resource, nontoxic and lower cost alternative to synthetic fluids 4,5 . In addition, vegetable oils have high solubilizing power for polar contaminants and additive molecules.…”

Section: Introductionmentioning

confidence: 99%

“…The use of epoxidized unsaturated fatty acids FA as metal working fluids 14 and epoxy oils as lubricating additives to eliminate corrosion from chlorine containing compounds 15 is reported in literature. Epoxides can also be used as high-temperature lubricants 4,11 and the products obtained from ring opening can be employed as low-temperature lubricants 16 .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

2014

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

2014

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“…In many applications the fluid is required to perform at elevated temperatures and in contact with air. Consequently, in its current form, the oil does have an important disadvantage which should be overcome before usage as base stock [2,10,14].…”

Section: Resultsmentioning

confidence: 99%

“…The ester linkages deliver inherent lubricity on metallic surfaces because of their adhesive property. Further, vegetable oils have superior solubilizing power for contaminants and additive molecules compared with mineral base fluids [1][2][3][4][5]. Because of existing of bis-allylic protons in the fatty acid chain vegetable oils have poor oxidation stability.…”

Section: Introductionmentioning

confidence: 99%

Direct acetylation of sunflower oil in the presence of boron trioxide catalyst and the adduct usage as the base stock and lubricant additive

Ashrafi¹,

Semnani²,

Langeroodi³

et al. 2017

Bull. Chem. Soc. Eth.

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ABSTRACT. Lubrication properties of sunflower oil have been modified by epoxidation in the first step and acetylation of the obtained epoxide in the second step. Epoxidation has been followed in dichloromethane solution in the presence of hydrogen peroxide and acetic acid as oxidizing agent and sulfuric acid as catalyst. The reaction has been monitored and optimized by measurement of iodine value, epoxy content, and recording the FTIR spectrum at different experimental conditions. Acetylation has been performed by enduring the optimized conditions of epoxidation reaction, in the presence of boron trioxide as catalyst and at elevated temperature. The recent reaction has been monitored and optimized by measurement of hydroxyl value, epoxy content, and recording the FTIR spectrum at different experimental conditions. The final product of both,epoxidation and acetylation reactions has been confirmed by FTIR and NMR data. Relative to sunflower oil, pour point and oxidation stability of the modified oil has considerably been improved. The modified oil has successfully been employed in the formulation of industrial gear oil. The investigation on the possibility of the additive application of the modified oil, as well as its miscibility with additives was considered.

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“…Nowadays, many base fluids such as vegetable oils and synthetic esters have found practical applications in the formulation of biodegradable lubricants because of their excellent biodegradability and non-toxicity (S. J. Randles and M. Wright, 1992) (A. Willing, 2001).…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Study of Biodegradation of Lubricating Oil Accelerated by Lauroyl Glycine

Chen¹,

Wang²,

Fang³

et al. 2010

MAS

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Different contents of lauroyl glycine were incorporated into HVI 350 mineral lubricating oil and the biodegradabilities of the formulated oils were evaluated on a biodegradation tester. Thereafter, the interaction affections of four influencing factors, viz. lubricating oil content, lauroyl glycine, microbe nutriments and oxygen supply, on biodegradation of HVI 350 lubricating oil in soils were studied based on a L9(3 4 ) orthogonal array test. The results indicated that lauroyl glycine obviously promoted biodegradation of HVI 350 lubricating oil, especially at the lauroyl glycine contents of about 1.0~1.5%. Of the four influencing factors, the effect of lauroyl glycine on biodegradation of HVI 350 lubricating oil in soils proved to be the most significant in various biodegradation durations, demonstrating that lauroyl glycine markedly contributed to the biodegradation of the lubricating oil.

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Environmentally considerate ester lubricants for the automotive and engineering industries

Cited by 108 publications

References 3 publications

Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

Direct acetylation of sunflower oil in the presence of boron trioxide catalyst and the adduct usage as the base stock and lubricant additive

Orthogonal Study of Biodegradation of Lubricating Oil Accelerated by Lauroyl Glycine

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