共查询到20条相似文献,搜索用时 31 毫秒
1.
V. P. Shelokhvostov V. V. Ostrikov N. N. Tupotilov 《Chemistry and Technology of Fuels and Oils》2008,44(3):190-195
A method is proposed for scattered light correlation spectroscopy for objective evaluation of the effect of water, oxidation
products, and particulate contaminants on the size of colloidal formations in petroleum oils with additives. It was shown
that to increase the colloidal stability — resistance to separation of oils with additives — and correspondingly improve their
performance properties, it is necessary to take into account the intermolecular interactions of the additives in composites
and to ensure the minimum change in them under the effect of external factors. The mechanism of the reaction of the additives
and their selection for ensuring the assigned performance properties of lube oils is theoretically substantiated.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, pp. 43–45, May–June, 2008. 相似文献
2.
S. V. Korneev V. M. Dudkin A. V. Kolunin 《Chemistry and Technology of Fuels and Oils》2006,42(4):273-275
Water contamination of motor oils during storage and use in low-temperature conditions cause formation of deposits. These
deposits, which consist of asphaltenes and additives, characterize the colloidal stability of the oils. A decrease in the
concentration of additives worsens the performance properties of the motor oils.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, p. 33–34, July–August, 2006. 相似文献
3.
S. A. Kuznetsov N. A. Belyaeva N. I. Kol’tsov 《Chemistry and Technology of Fuels and Oils》2009,45(3):208-210
A method has been developed for making self-emulsifying esters and bicyclic imidazolines based on them for use as effective
additives to oils, lubricants, and technological liquids, and also as lubricating agents and emulsifiers that simultaneously
are anticorrosion additives for processing ferrous-metal components.
Translated from Khimiya i Tekhnologiya Topliv i Masel, No.3, pp. 48 – 49, May – June, 2009. 相似文献
4.
I. E. Selezneva A. Ya. Levin S. V. Monin 《Chemistry and Technology of Fuels and Oils》1999,35(6):389-395
Detergent-dispersant additives (DD additives) are widely used in modern motor oils. Detergents are ash additives and dispersants
are ashless additives. Some of the most common metal-containing detergents used in the world are metal alkylphenolates, primarily
calcium, barium, and magnesium alkylphenolates, which have a high degree of detergent properties. This is due to the broad
spectrum of operating properties, relative availability of the initial stock, and simplicity of the manufacturning technology.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 39 – 43, November – December, 1999. 相似文献
5.
N. N. Tupotilov V. V. Ostrikov A. Yu. ornev 《Chemistry and Technology of Fuels and Oils》2006,42(3):192-195
The possibility of using oxidized, epoxidized, and polymerized fractions of rape and sunflower oils as viscosity and antifriction
additives for hydraulic and motor oils was examined. Their biodegradability was evaluated.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 29–30, May–June, 2006. 相似文献
6.
K. I. Sadykhov A. N. Agaev S. M. Velieva I. D. Kulaliev 《Chemistry and Technology of Fuels and Oils》1999,35(5):305-307
Effective new additives, including sulfonate additives, are required for creating high-quality motor oils which meet the requirements
of current and future technology [1]. We developed a medium-caustic synthetic sulfonate additive based on alkyltetralin.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 31 – 32, September – October, 1999. 相似文献
7.
A. I. Akhmedov Z. A. Lachinova D. Sh. Gamidova E. U. Isakov 《Chemistry and Technology of Fuels and Oils》2007,43(4):319-322
The possibility of obtaining viscosity additives for petroleum and synthetic oils by synthesizing co-oligomers of allylnaphthenates
with butyl methacrylate and allylnaphthenates with styrene was investigated. The conditions for obtaining co-oligomers with
assigned properties were found. The compounds obtained have improved viscosity-temperature properties and are much more resistant
to thermal effects than industrial viscosity additives.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 35–36, July–August, 2007. 相似文献
8.
The basic physicochemical characteristics of fabrication of three-phase colloidal fuels were analyzed. The effect of the nature
and content of solid and liquid phases, type of chemical additives (plasticizers, emulsifiers, and stabilizers), and the basic
methods of obtaining three-phase systems from bituminous coals and brown coals were examined.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 52–56, January–February, 2007. 相似文献
9.
V. M. Farzaliev A. A. Dzhavadova E. V. Azimov S. B. Mamedkerimova A. A. Babashly 《Chemistry and Technology of Fuels and Oils》2008,44(5):334-338
The effect of viscosity additives from the Viscoplex series on the rheological properties of M-10G2k lubricants, developed from Baku base oils, was investigated with consideration of current environmental and sanitary-hygienic
requirements. It was found that the system consisting of a mineral oil and viscosity additives is characterized by non-Newtonian
behavior — at a shear rate of 60–80 sec−1, the character of flow is pseudoplastic — and is distinguished by good starting properties at temperatures from +10 to −20°C.
Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 32–35, September–October, 2008. 相似文献
10.
R. N. Shiryaeva F. Kh. Kudasheva R. N. Gimaev N. S. Makeeva 《Chemistry and Technology of Fuels and Oils》2009,45(3):214-216
Measurements have been made on the rheological parameters of oils from the South Sukhokum and Meshalka deposits at 20-60°C
in the presence of surfactants, and optimal concentrations for the latter have been determined. IR spectroscopy establishes
the action mechanism: the n-alkanes react not with the functional polar groups but instead with alkyl fragments of the additives.
Translated from Khimiya i Tekhnologiya Topliv i Masel, No.3, pp. 52 – 53, May – June, 2009. 相似文献
11.
T. I. Sochevko M. D. Pakhomov M. I. Fal’kovich V. M. Evtushenko 《Chemistry and Technology of Fuels and Oils》2000,36(2):116-120
Research on the chemistry and technology of lubricants is a basic research direction in the scientific school of Professor
N. I. Chernozhukov, created more than 50 years ago. The results of this school’s research have significantly expanded the
ideas concerning the production and use of oils and greases and the effect of the nature of the stock on the relationship
of the composition (colloidal structure) and properties of the commercial products obtained.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 37 – 39, March – April, 2000. 相似文献
12.
D. V. Boikov T. B. Bugai Yu. P. Mal’kov 《Chemistry and Technology of Fuels and Oils》2007,43(4):299-304
The basic physicochemical indexes of M-10-D2(m) engine oil change much less intensively in a gas engine than in a diesel. Low accumulation of elements-indicators of parts
wear-and fouling of parts by carbon and varnish deposits were noted. Formation of ash deposits in the valves was more important.
Dithiophosphate additives were depleted similarly in both engines. Information on the requirements for special oils for gas
engines is reported
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 24–27, July–August, 2007. 相似文献
13.
The extensive utilization of deposits of highly viscous crude oils is stimulating a wider investigation of the physicochemical
processes involving macromolecular resins and asphaltenes (RA). The reliability of operation of turbolines in pumping crude
oils with a high solid point is determined to a significant degree by the possibility of controlling the flow of liquid colloidal
systems whose disperse phase is primarily represented by asphaltenes. However, there is no sufficiently complete information
on cross-linking mechanisms involving molecules of RA and the degree of the effect of the structures formed on the rheology
of the liquids for such control. We used viscometry to investigate the characteristics of association and dispersion of RA
in relatively simple model liquid media. The effect of the concentration composition of liquid media were previously primarily
investigated in such studies [1 – 3]. The step for changing the temperature was too high: 10°C and higher, to determine any
thermal characteristics of viscous flow.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 32 – 34, November – December, 1999. 相似文献
14.
V. A. Kuprin 《Chemistry and Technology of Fuels and Oils》2006,42(4):287-292
Systems of the coking gasoil type with residual and distillate cracking residues were investigated by electrophysical methods.
Electrical processes, in particular, electrostatic blocking of high-melting components and formation of asphalt-resin complexes
on electrically active centers, as well as mechanical factors, are responsible for the synergism and depressant activity.
At 25–30 wt. % concentrations of additives in the mixtures investigated, a depressant effect was revealed for the first time.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 42–44, July–August, 2006. 相似文献
15.
R. Sh. Kuliev F. A. Kuliev A. A. Mutalibova S. R. Kulieva 《Chemistry and Technology of Fuels and Oils》2006,42(1):55-59
Recommendations are given for improving the antioxidant and anticorrosion properties of vegetable oils by etherification with
butyl and decyl alcohols on Zeocar-2 catalyst. Technologies are proposed for obtaining lube oils of the “new generation” with
different applications by compounding rapeseed oil butyl ether with high-viscosity (viscosity index VI > 150) castor and petroleum
oils and all-season oils by thickening rapeseed oil ether with polymethacrylate PMA “D” (VI > 200).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 41–43, January–February, 2006. 相似文献
16.
A. A. Mukhin V. Yu. Kashchitskaya S. A. Potapova 《Chemistry and Technology of Fuels and Oils》2008,44(3):208-212
A laboratory method was developed for evaluating the performance properties of lube oils used in gas-pumping sets. The correspondence
of the results obtained by this method and the data on the performance of the oils was demonstrated. The method is intended
for fast acceptance control of fresh oils, evaluation of the change in the properties of the oils during use and storage in
warehouses, and for developing new lube oils and detecting counterfeit products.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, pp. 54–56, May–June, 2008. 相似文献
17.
I. G. Fuks S. V. Shibryaev L. N. Bagdasarov A. V. Sterkhov 《Chemistry and Technology of Fuels and Oils》2000,36(2):121-126
Modern commercial oils and lubricating greases are primarily multicomponent disperse systems. Such products contain no less
than 3 – 5 different components, and there can sometimes be 8 – 10 components. Since the 1930s, oils and other petroleum-based
lubricants have been widely used in industry.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 40 – 43, March – April, 2000.
Approximately 20 dissertations on this problem have been written and defended in the Department in the past 25 years: doctoral:
A. Yu. Evdokimov, A. Luksa, and I. G. Fuks; candidate: K. M. Antilova, L. N. Bagdasarov, P. N. Vdovichenko, Yu. N. Kitashov,
Yu. P. Kosarskaya, V. L. Nemets, A. V. Newterov, V. V. Perekrestova, D. V. Ryabov, A. B. Sterkhov, T. V. Fedorova, N. I. Chernozhukov,
E. Yu. Sheble, S. B. Shibryaev, and others. 相似文献
18.
E. V. Shatokhina 《Chemistry and Technology of Fuels and Oils》2007,43(5):427-432
The results of fast quality control of oils by nonstandard methods are reported. The possibility of developing methods of
determining the basic indexes of oils — the dielectric loss tangent, the base number based on the measured dielectric constant,
and the resistivity — is examined. Motor oils from different manufacturers have different dielectric constants, which allows
identifying the manufacturing company.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 46–48, September–October, 2007. 相似文献
19.
G. N. Gurbanov V. A. Kuli-zade M. A. Mamed’yarov 《Chemistry and Technology of Fuels and Oils》2008,44(1):50-54
The effect of the chemical structure of 2,2,5,5-tetramethylcyclopentanol, 2,2,6,6-tetramethylcyclohexanol, 1,1-dimethyl-3-cyclohexene,
and 2,2,-dimethyl-(2,2,1)-bicyclo-5-heptene based on C3–C8 aliphatic monocarboxylic acids and their phosphorus-and silicon-containing derivatives on the thermooxidative stability was
investigated. The characteristics established allow synthesizing the esters purposefully and selectively, which suggests them
as the base and components for promising lube oils.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 36–39, January–February, 2008. 相似文献
20.
F. F. Mamedov F. A. Kuliev A. G. Azizov 《Chemistry and Technology of Fuels and Oils》1999,35(6):365-369
Transformer and turbine oils must have good physicochemical, antioxidant, anticorrosive, and heat transfer properties. The
latter are primarily determined by the thermal conductivityλ and isobaric heat capacity c′p. The thermophysical properties of turbine and transformer oils have been relatively completely investigated at low temperatures
and atmospheric pressure. However, the experimental values of parametersλ and c′p occasionally differ significantly for the same oils, probably due to their origin and manufacturing technology.
Translated fromKhimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 26 – 28, November – December, 1999. 相似文献