Standard specimen composition for determining total alkaline number of motor oils and lubricating materials

FIELD: analytical methods.

SUBSTANCE: invention is intended for use as a means of metrologically supporting measurement techniques in determination of total alkaline number of motor oils and lubricating materials. This means is represented by composition containing 75-84% liquid hydrocarbons, 0.05-6% water-soluble alkali component, and 15-20% aliphatic alcohol. Use of standard specimen allows performing reliable estimation of quality of motor oils and lubricating materials by accessible acid-base titration technique requiring no special instrumentation equipment.

EFFECT: simplified analytical procedure.

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Same patents:

FIELD: express-methods for determining presence and quality of dispersing-stabilizing properties, dispersing agent type for lubricating oils and determining engine oils among other oil types.

SUBSTANCE: method for determining dispersing-stabilizing properties of lubricating oils is performed by inserting into oil and dispersing therein of dirt agent and reaching calm state, while liquid dirt agent is injected into oil, which does not form a solution with oil, and after dispersion, emulsion is maintained in calm state, on basis of alternation of information parameters like loss of transparence and coloring of emulsion in colors from dark yellow to light yellow, quality estimate of presence of dispersion-stabilizing properties is determined with detection of engine oils, and on basis of alternation of information parameters like in form of intensiveness of coloring of emulsion in colors ranging from dark yellow to light yellow, time when dirt agent starts precipitating and/or time when emulsion starts dividing on distinct layers or absence of same, volume of precipitated dirt agent and/or height of column of layered emulsion during certain time limit or absence of same, volume of dirt agent inserted into oil, for which precipitation of dirt agent starts or layering of emulsion, and also - possible combination of same, quality estimate of workability level of dispersing-stabilizing admixture of lubricating oil is determined, as well as dispersant type.

EFFECT: decreased time consumption, increased information capacity of determination.

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FIELD: any industries where motor oils are used.

SUBSTANCE: proposed device contains shaped insert with oxidizer feed axial channel. Ring passage space for cooling agent is found inside shaped insert, and outer surface of middle stage is provided with corrugations. It provides cooling of oil vapors settled on corrugations at heating and dripping down in form of condensate into high temperature oxidation zone. Oil sample meter is provided in lower part of cylindrical head made in form of branch pipe by means of which metered delivery of oil to surface of aluminum weighing bottle is carried out. Oil is applied in layers, each being 150±5 mcm thick, each layer is oxidized, 240±5 s, by delivering oxidizer at rate of 50 l/h directly to surface of oil layer in aluminum weighing bottle. Taken as information index is mass "m" on deposits formed on aluminum weighing bottle. At mass of ratios greater than or equal to 0.0170 g (m≥0.0170g) oil is considered as group "В" oil, and ratio 0.0130g≤m<0.0170g oil is considered as group "Г" and at m<0.0130g, oil is considered as group "Д".

EFFECT: improved accuracy and reduced time taken for determining service group of motor oil under investigation owing to provision of conditions of testing close to real conditions of operation of oil in engine.

3 cl, 2 tbl, 1 dwg

The invention relates to the testing of lubricating oils and can be used to evaluate their thermal stability

The invention relates to a process of assessing the quality of liquid lubricants and, in particular, to the definition of the resource of their work

The invention relates to the field of study of lubricating oils, in particular to the estimation of the sedimentation stability of engine oils, and can be used in oil refining and other industries, when predicting shelf-life motor oils

The invention relates to the analysis of lubricating oils with alkaline additives, namely, to determine conditionnot oils

The invention relates to the field of study of lubricating oils, in particular to a method of assessing the energy properties of motor oils, and can be used in the development of new engine oils to assess their energy-saving properties, and can also be used when selecting oils the engine

The invention relates to techniques for assessing the quality of liquid lubricants, in particular to the determination of their lubricating ability

FIELD: chemical industry; petrochemical industry; analysis of the materials by the chemical methods.

SUBSTANCE: the invention is pertaining to the field of analysis of the materials by the chemical methods (by titration, with utilization of chemical indicators), containing the organic compounds of magnesium and may be used in chemical and a petrochemical industry at exercising control over the quality of petroleum. The invention provides, that magnesium chloride from the oil test is produced by impregnation of the ash-free filter with the tested oil with its subsequent incineration up to the complete ashing. Then the ash is dissolved in 30-40 cm3 of the weak 6 Mole/dm3 solution of hydrochloric acid. The produced solution id boiled within 15-20 minutes, transferred by a spray of the distilled water into the graduated flask. Take the aliquot, in which add the distilled water and neutralize it with ammonia (dropwise) up to pH=10.0, introduce the ammoniacal buffered solution and the indicating device the chromogen black ЕТ-100 and titrate 0.025 Mole/cm3 with the B-trilonum solution till the change of the a crimson-violet color into blue- pale blue, and quantity of magnesium (in mass%), is determined by the empirical formula. The invention allows to reduce the time duration for determination of the contents of magnesium, to improve the labor conditions due to exclusion from the process of the toxic and flammable benzole without reduction of requirements on toxicity and reliability of the produced results.

EFFECT: the invention ensures reduction of the time for determination of the contents of magnesium, improvement of the labor conditions, exclusion from the process of the toxic and flammable benzole without reduction of requirements to toxicity and reliability of the produced results.

2 tbl

The invention relates to performance management and monitoring of dosage, and in particular to methods and control of oil and petrochemical products through chemical processing, as well as to methods for operational use of sensors based on quartz crystal microbalance

The invention relates to the analysis of lubricating oils with alkaline additives, namely, to determine conditionnot oils

The invention relates to a device for oxidation of oils in assessing performance properties

The invention relates to a method of determining the stability of water-hydrocarbon emulsions

The invention relates to the field control of concrete strength

The invention relates to the field of analytical chemistry

The invention relates to the field of analytical chemistry and can be used to determine the content of an impurity in a variety of special fluids, such as oil, fuel and hydraulic fluids in various industries where these fluids are applied

The invention relates to research performance properties of petroleum products, namely the determination of oxidation inhibitors in transformer oils (TM) and can be used to determine the timing of replacement or upgrade of oils

FIELD: chemical industry; petrochemical industry; analysis of the materials by the chemical methods.

SUBSTANCE: the invention is pertaining to the field of analysis of the materials by the chemical methods (by titration, with utilization of chemical indicators), containing the organic compounds of magnesium and may be used in chemical and a petrochemical industry at exercising control over the quality of petroleum. The invention provides, that magnesium chloride from the oil test is produced by impregnation of the ash-free filter with the tested oil with its subsequent incineration up to the complete ashing. Then the ash is dissolved in 30-40 cm3 of the weak 6 Mole/dm3 solution of hydrochloric acid. The produced solution id boiled within 15-20 minutes, transferred by a spray of the distilled water into the graduated flask. Take the aliquot, in which add the distilled water and neutralize it with ammonia (dropwise) up to pH=10.0, introduce the ammoniacal buffered solution and the indicating device the chromogen black ЕТ-100 and titrate 0.025 Mole/cm3 with the B-trilonum solution till the change of the a crimson-violet color into blue- pale blue, and quantity of magnesium (in mass%), is determined by the empirical formula. The invention allows to reduce the time duration for determination of the contents of magnesium, to improve the labor conditions due to exclusion from the process of the toxic and flammable benzole without reduction of requirements on toxicity and reliability of the produced results.

EFFECT: the invention ensures reduction of the time for determination of the contents of magnesium, improvement of the labor conditions, exclusion from the process of the toxic and flammable benzole without reduction of requirements to toxicity and reliability of the produced results.

2 tbl

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