CN104792783A - Method for identifying mineral lubricating oil and fully synthesized lubricating oil - Google Patents
Method for identifying mineral lubricating oil and fully synthesized lubricating oil Download PDFInfo
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- CN104792783A CN104792783A CN201510221325.7A CN201510221325A CN104792783A CN 104792783 A CN104792783 A CN 104792783A CN 201510221325 A CN201510221325 A CN 201510221325A CN 104792783 A CN104792783 A CN 104792783A
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Abstract
The invention belongs to the field of lubricating oil and specifically relates to a method for identifying mineral lubricating oil and fully synthesized lubricating oil. According to the method provided by the invention, a formolite reagent is used for titration of two types of oil samples with the viscosity grade of OW or 5W, after the oil sample reacts with the formolite reagent, the mineral lubricating oil and the fully synthesized lubricating oil are identified by observing the color changes, and if the color becomes black, the oil sample is the mineral lubricating oil. The method provided by the invention solves the problems that consumers can not perform identification and some experienced staff in the industry lacks identification methods; and meanwhile, a simple, convenient and effective method for rapid identification of the mineral lubricating oil and the fully synthesized lubricating oil is also provided for law enforcement officers, and the shortcomings that the law enforcement officers generally need to collect back all the oil samples to analyze by a large-scale instrument in a laboratory, the identification period is long and the cost is high are avoided.
Description
Technical field
The invention belongs to lubricating oil field, be specifically related to the recognition methods of a kind of mineral lubricating oil and full synthetic lubricant fluid.
Background technology
Along with the continuous growth of domestic and international lubricating oil consumption market, especially in automobile consumption field, the automobile lubricating oil of various rank, the different trade mark, different manufacturers is various in style, and quality is uneven.The automobile engine lubricating oil that market is sold mainly contains mineral lubricating oil, the large class of full synthetic lubricant fluid two, and wherein full synthetic lubricant fluid is best in quality, class is the highest, and therefore price is the most expensive.Some businessmans or manufacturer, in order to obtain more profits, pretend to be full synthetic lubricant fluid by selling mineral lubricating oil or distort lubricating oil viscosity grade, adulterating, excellently obtain more profits with bad filling.To the full synthetic lubricant fluid of fake and forged commodity, it is difficult to differentiate, executive cost is high, seriously constrains the market specifications of lubricating oil.In current industry some experienced personnel mostly by observing the color of lubricating oil, smelling, the identification trade mark judge that roughly it is true and false of poor quality, but this method is for inapplicable most of layman personnel, and fraud level is more and more higher, many times can not be identified by this simple method.In order to this illegal activities can be hit, reduce executive cost, also consumer's justice, be badly in need of a kind of method that can realize on-the-spot identification mineral lubricating oil and full synthetic lubricant fluid fast.
Lubricating oil is made up of base oil and adjuvant, and base oil is the principal ingredient in lubricating oil, mainly divides mineral base oil, synthetic base oil and biological basis oil three major types.In automobile engine lubricating oil field, lubricating oil is mainly mineral lubricating oil and full synthetic lubricant fluid.The chemical composition of mineral lubricating oil comprises higher boiling, high-molecular weight hydrocarbon and non-hydrocarbons potpourri.Its composition is generally alkane (straight chain, side chain, highly branched chain), naphthenic hydrocarbon (monocycle, dicyclo, many rings), aromatic hydrocarbons (mononuclear aromatics, palycyclic aromatic), naphthenic base aromatic hydrocarbons and containing oxygen, nitrogenous, organic compounds containing sulfur and the non-hydrocarbons such as colloid, bituminous matter.Full synthetic lubricant fluid be from the device in Gas in crude oil or rock gas the ethene, the propylene that disperse out, large molecular lubricating fluid is refined into again through the chemical reaction that polymerization, catalysis etc. are complicated, as Esters oil, polyethers, fluorine-containing wet goods, there is very strong stability and inoxidizability.Based on above difference, principle of the present invention is that formolite reagent can with the compound containing ring texture in mineral lubricating oil as having the compound generation oxidation reaction of analogous alkaloid, dehydration, condensation reaction containing phenyl ring, aromatic ring and phenolic hydroxyl group, alcoholic extract hydroxyl group etc., generate the colored compound with similar quinoid structure, whole reaction generally needs 1 ~ 5 minute, after above-mentioned reaction, by observing the change of oil sample color, identify mineral lubricating oil and full synthetic lubricant fluid.
Summary of the invention
Object of the present invention is just: various in style for the automobile engine lubricating oil that market is sold, quality is irregular to differ, especially mineral lubricating oil pretends to be full synthetic lubricant fluid, be difficult to identify, law enforcement difficulty, Given this, by a kind of method for quickly identifying, realize the identification to mineral lubricating oil and full synthetic lubricant fluid.
For achieving the above object, the invention provides following technical scheme:
At ambient temperature, be the two class oil samples of 0W or 5W with formolite reagent titration viscosity grade, the reaction time after titration is 1 to 5 minute, if oil sample color blackening after reaction, this oil sample is mineral lubricating oil.
Further, described room temperature condition is 15 DEG C ~ 35 DEG C.
Further, described uses formolite reagent titration oil sample, and the titer of formolite reagent is 0.1 milliliter to 0.5 milliliter, and the volume ratio of formolite reagent and titrated oil sample is 1:1.
Further, described formolite reagent, sulphate reagent and formaldehyde formulations are respectively the sulfuric acid solution of mass concentration 95% ~ 98% and the formalin of mass concentration 37% ~ 40%.
Further, described formolite reagent, the volume ratio of sulphate reagent and formaldehyde formulations is 20:1.
Further, described oil sample color blackening, the black after the blackening of oil sample color represents with RGB pattern, and the numerical range of its R, G, B is 0 to 28.
The invention has the beneficial effects as follows: can be in the middle of the full synthetic lubricant fluid of 0W or 5W rank from viscosity grade various in style, identify the full synthetic lubricant fluid pretended to be with mineral lubricating oil fast, not only solving consumer cannot identification, in industry, some experience personal identification methods are not enough, simultaneously also for law enfrocement official provides a kind of easy, effective quick identification mineral lubricating oil and full synthetic lubricant fluid method, avoid law enfrocement official usually to need whole oil sample collection to go back to carry out laboratory large-scale instrument analysis, qualification cycle is long, shortcoming costly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further.
Fig. 1 is the recognition methods schematic diagram of a kind of mineral lubricating oil of the present invention and full synthetic lubricant fluid.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
Fig. 1 is the recognition methods schematic diagram of a kind of mineral lubricating oil of the present invention and full synthetic lubricant fluid.
First embodiment:
1) commercially different brands, viscosity grade is the automobile engine lubricating oil 30 kinds of 0W or 5W rank, at ambient temperature, with each oil sample of formolite reagent titration, reaction time after titration is 2 minutes, if oil sample color blackening after reaction, this oil sample is mineral lubricating oil.
2) above-mentioned steps 1) in, described room temperature condition is 15 DEG C.
3) above-mentioned steps 1) in, described uses formolite reagent titration oil sample, and the titer of formolite reagent is 0.1 milliliter, and the amount of the oil sample of titration is 0.1 milliliter.
4) above-mentioned steps 1), 3), in, described formolite reagent, sulphate reagent and formaldehyde formulations are respectively the sulfuric acid solution of mass concentration 95% and the formalin of mass concentration 37%.
5) above-mentioned steps 1) in, described formolite reagent, the volume ratio of sulphate reagent and formaldehyde formulations is 20:1, measures 10 milliliters of sulfuric acid solutions and 0.5 milliliter of formalin respectively.
6) above-mentioned steps 1) described in the blackening of oil sample color, the black after the blackening of oil sample color represents with RGB pattern, and the numerical value of its R, G, B is respectively: R is 0, G is 0, B is 0.
Experimental result finds, two kinds of oil sample colors blackening in 30 kinds of oil samples is mineral lubricating oil, not pure full synthetic lubricant fluid.The invention has the beneficial effects as follows: solving consumer cannot identification, in industry, some experience personal identification methods are not enough, simultaneously also for law enfrocement official provide a kind of easy, effective quick identification mineral lubricating oil and full synthetic lubricant fluid method, avoid law enfrocement official usually to need whole oil sample collection to go back to carry out laboratory large-scale instrument analysis, qualification cycle be long, shortcoming costly.
Second embodiment:
1) commercially different brands, viscosity grade is the automobile engine lubricating oil 30 kinds of 0W or 5W rank, at ambient temperature, with each oil sample of formolite reagent titration, reaction time after titration is 4 minutes, if oil sample color blackening after reaction, this oil sample is mineral lubricating oil.
2) above-mentioned steps 1) in, described room temperature condition is 25 DEG C.
3) above-mentioned steps 1) in, described uses formolite reagent titration oil sample, and the titer of formolite reagent is 0.3 milliliter, and the amount of the oil sample of titration is 0.3 milliliter.
4) above-mentioned steps 1), 3), in, described formolite reagent, sulphate reagent and formaldehyde formulations are respectively the sulfuric acid solution of mass concentration 96% and the formalin of mass concentration 38%.
5) above-mentioned steps 1) in, described formolite reagent, the volume ratio of sulphate reagent and formaldehyde formulations is 20:1, measures 20 milliliters of sulfuric acid solutions and 1 milliliter of formalin respectively.
6) above-mentioned steps 1) described in the blackening of oil sample color, the black after the blackening of oil sample color represents with RGB pattern, and the numerical value of its R, G, B is respectively: R is 10, G is 10, B is 10.
Experimental result finds, two kinds of oil sample colors blackening in 30 kinds of oil samples is mineral lubricating oil, not pure full synthetic lubricant fluid.The invention has the beneficial effects as follows: solving consumer cannot identification, in industry, some experience personal identification methods are not enough, simultaneously also for law enfrocement official provide a kind of easy, effective quick identification mineral lubricating oil and full synthetic lubricant fluid method, avoid law enfrocement official usually to need whole oil sample collection to go back to carry out laboratory large-scale instrument analysis, qualification cycle be long, shortcoming costly.
3rd embodiment:
1) commercially different brands, viscosity grade is the automobile engine lubricating oil 30 kinds of 0W or 5W rank, at ambient temperature, with each oil sample of formolite reagent titration, reaction time after titration is 5 minutes, if oil sample color blackening after reaction, this oil sample is mineral lubricating oil.
2) above-mentioned steps 1) in, described room temperature condition is 35 DEG C.
3) above-mentioned steps 1) in, described uses formolite reagent titration oil sample, and the titer of formolite reagent is 0.5 milliliter, and the amount of the oil sample of titration is 0.5 milliliter.
4) above-mentioned steps 1), 3), in, described formolite reagent, sulphate reagent and formaldehyde formulations are respectively the sulfuric acid solution of mass concentration 98% and the formalin of mass concentration 40%.
5) above-mentioned steps 1) in, described formolite reagent, the volume ratio of sulphate reagent and formaldehyde formulations is 20:1, measures 30 milliliters of sulfuric acid solutions and 1.5 milliliters of formalins respectively.
6) above-mentioned steps 1) described in the blackening of oil sample color, the black after the blackening of oil sample color represents with RGB pattern, and the numerical value of its R, G, B is respectively: R is 28, G is 28, B is 28.
Experimental result finds, two kinds of oil sample colors blackening in 30 kinds of oil samples is mineral lubricating oil, not pure full synthetic lubricant fluid.The invention has the beneficial effects as follows: solving consumer cannot identification, in industry, some experience personal identification methods are not enough, simultaneously also for law enfrocement official provide a kind of easy, effective quick identification mineral lubricating oil and full synthetic lubricant fluid method, avoid law enfrocement official usually to need whole oil sample collection to go back to carry out laboratory large-scale instrument analysis, qualification cycle be long, shortcoming costly.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. the recognition methods of a mineral lubricating oil and full synthetic lubricant fluid, it is characterized in that: at ambient temperature, with formolite reagent titration oil sample, the viscosity grade of oil sample is 0W or 5W two class, reaction time after titration is 1 to 5 minute, if oil sample color blackening after reaction, this oil sample is mineral lubricating oil.
2. the recognition methods of a kind of mineral lubricating oil according to claim 1 and full synthetic lubricant fluid, is characterized in that: described room temperature condition is 15 DEG C ~ 35 DEG C.
3. the recognition methods of a kind of mineral lubricating oil according to claim 1 and full synthetic lubricant fluid, it is characterized in that: described uses formolite reagent titration oil sample, the titer of formolite reagent is 0.1 milliliter to 0.5 milliliter, and the volume ratio of formolite reagent and titrated oil sample is 1:1.
4. the recognition methods of a kind of mineral lubricating oil according to claim 1 and full synthetic lubricant fluid, it is characterized in that: described formolite reagent, sulphate reagent and formaldehyde formulations are respectively the sulfuric acid solution of mass concentration 95% ~ 98% and the formalin of mass concentration 37% ~ 40%.
5. a kind of mineral lubricating oil according to claim 1,4 and the recognition methods of full synthetic lubricant fluid, is characterized in that: described formolite reagent, and the volume ratio of sulphate reagent and formaldehyde formulations is 20:1.
6. the recognition methods of a kind of mineral lubricating oil according to claim 1 and full synthetic lubricant fluid, is characterized in that: described oil sample color blackening, the black after the blackening of oil sample color represents with RGB pattern, and the numerical range of its R, G, B is 0 to 28.
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Cited By (2)
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| CN105241877A (en) * | 2015-10-20 | 2016-01-13 | 中国石油化工股份有限公司 | Reagent used for detecting refining degree of hydrogenated oil and method for detecting refining degree of hydrogenated oil |
| CN116381202A (en) * | 2023-02-03 | 2023-07-04 | 深圳海关工业品检测技术中心 | Identification method of GTL lubricating oil and mineral oil-based lubricating oil |
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| CN116381202A (en) * | 2023-02-03 | 2023-07-04 | 深圳海关工业品检测技术中心 | Identification method of GTL lubricating oil and mineral oil-based lubricating oil |
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Application publication date: 20150722 |