Preventive lubricant

 

(57) Abstract:

The invention relates to a preventive lubricants and can be used to prevent dust formation on temporary roads, mining quarrying, and to prevent sticking, primerzanie and freezing wet rocks to the walls of the mining and transport equipment in the mining industry, for example to protect surfaces rolling against primerzanie and blowing bulk materials such as coal, peat, etc. Offer preventive lubricant contains heavy oil residue and VAT residue production butyl alcohols in the following ratio, wt.%: VAT residue of butyl alcohols production 79,9-99,5; heavy oil residue of 0.5-21,0. And as a heavy oil residue preventive material contains a straight-run fuel oil. The technical result is improved performance, reducing the pour point of the composition and extension resources of crude oil through involvement in the composition of preventive lubricant wastes of petrochemical production. 1 C.p. f-crystals, 1 Il., 3 topredetermined dust on temporary roads quarries in mining quarrying, and also to prevent sticking, primerzanie and freezing wet rocks to the walls of the mining and transport equipment in the mining industry, for example, to protect surfaces rolling against primerzanie and blowing bulk materials (coal, peat, and so on).

Known to be a preventive tool to combat dust, for example, on roads and quarries (Ed. mon. The USSR 916527, From 09 To 3/22, 1982 ), containing cracking residue of sulfur crude oil, distillate fraction sulfur crudes intervals boiling 270-410oWith and Gidropress of cumene in the following ratios, wt.%:

Distillate fraction sulfur crudes intervals boiling 270-410oWITH - 39,5-59,7

Gidropress of cumene - 0,3-0,5

Cracking residue sulfur crudes - Rest

Known preventive tool has good plasmapause and particulate properties, however, has a high freezing point: minus 15. . . minus 14oWith and may not be used in conditions of the North to prevent freezing of rocks, for example, coking coal and primerzanie them to the walls of the mining equipment.

Naibeleyshaya coals "Universin-3" (Ed. mon. The USSR 519467, 09 K 3/18, bull. 24, 1976) based on oil and heavy oil residue, and the oil it contains a light gas oil catalytic cracking, and as a heavy oil residue - cracking-residue thermal cracking in the following ratio, wt.%:

Light catalytic cracking gas oil - 90-98

Heavy oil residue - 2-10

A disadvantage of known composition are low maintenance properties in the North against primerzanie and adhesion wet rocks, the limited resources of crude oil, as well as insufficient low temperature.

The present invention solves the technical problem of improving operational performance, reduce the pour point and extension resources of crude oil due to the inclusion in the composition of preventive lubricant wastes of petrochemical production.

This task is solved by the fact that preventive lubricant based heavy oil residue according to the invention further comprises a VAT residue production butyl alcohols in the following ratio, wt.%:

VAT residue p is etjnogo balance the composition contains a straight-run fuel oil.

Physico-chemical characteristics of straight-run fuel oil are given in table 1.

The table shows that the straight-run fuel oil has a high density (0,960 g/cm3, viscosity 7,35oWU at 80oWith 10,18 andoWU under 100oC) and a pour point of + 20oC. Its distinguishing feature is the high content of mechanical impurities of 0.15 wt. % water (traces). To increase viscosity, adhesion and lubricity preventive lubricant in the base fraction VAT residue production of butyl alcohol was administered heavy oil residue (straight-run fuel oil) in an amount of from 0.5 to 21.0 wt.%.

Physico-chemical characteristics of VAT residue of butyl alcohols production are presented in table 1. From table 1 it is evident that the flash point of the cubic residue production butyl alcohol +85oWith the undoubted advantage of the VAT residue production butyl alcohols are good low-temperature properties. Thus, the pour point of the cubic residue of butyl alcohols production minus 60oC. This is due to the characteristics of the hydrocarbon composition (table 2). As you can see and a full absence of paraffin hydrocarbons, the low content of cycloparaffins, high content of mono - aromatic hydrocarbons, alkyl benzenes - 62,87 about. % of tetraline - 13,31%. The low pour point of the cubic residue of butyl alcohols production minus 60oWith due to the high content of oxygenated compounds.

Was carried out by gas chromatography-mass spectrometric analysis of the chemical composition of the bottoms of the production of butyl alcohol. They contain mainly alcohols, aldehydes, esters WITH4or higher.

The composition of the cubic residue following, wt%:

n-Butanol - 8,5

Isobutylether - 9

Isobutylester - 7

Butalbutal - 8

n-Octanol - 16,5

Acetal samalanga aldehyde and 2-ethylhexanol - 17,5

Acetal samalanga butanol and n-butyric aldehyde - 23

Acetal samalanga aldehyde and n-butanol is 24.5

Ether somaclonal acid and 2-ethylhexanol - 26

Ether n-butyric acid and 2-ethylhexanol - 30

2-Ethylhexanol - 14,5

Unidentified impurity - 12,5

Isobutanol - Rest

Additionally identified physico-chemical characteristics of the bottoms of the production of butyl alcohol, mg KOH/g:
R> Scheme for the proposed preventive lubricant shown in the drawing and includes a tank 1 with kubovy balance the production of butyl alcohol, drain pump 2 for pumping VAT residue, receiving tank 3, tank 4 with straight-run fuel oil, drain pump 5 fuel oil receiving tank 6 fuel oil with steam heating 7. The temperature of the oil should not be below 80oWith, dosing pumps 8 and 9 for VAT residue and oil, respectively, of the mixing tank 10, a pump 11 for circulation, pumping and filling, the tank 12 for receiving a commercial product.

Preventive lubricating material was obtained as follows. VAT residue petrochemical production (butyl alcohol) from the tank 1 by the pump 2 is pumped into the tank 3, and the straight-run fuel oil from the tank 4 by the pump 5 is pumped into a receiving tank 6 with a steam heating 7. Prepared by the pump components in the specified proportions dosing pumps 8 and 9 in the mixing tank 10. The injection is performed in the following sequence. Start dosing pump 8 at a certain performance for injection VAT residue. After the release of the operating mode to run dozorova the TES the ratio of the components in the pump intake 8. For 3-5 minutes until the end of the pumping VAT residue stop the dosing pump 9, and then stops the pump 8. Produce samples from the upper, middle and lower layers preventive lubricating material in the mixing tank 10. Then analyze the samples for quality. In the case of obtaining under stirring in a mixing tank 10 heterogeneous mixtures produce circulation of the circulating pump 11. The duration of the circulation should be such that through the pump 11 has passed the liquid in a quantity equal to the volume of the prepared mixture. After circulation again carry out the analysis of samples taken by the layers. When obtaining a homogeneous mixture is discharged commodity passport ready commercial product - preventive lubricant.

Examples of obtaining the proposed preventive material.

Example 1. In the mixing tank 10 dosing pump 8 serves 79,0 wt. % VAT residue, and the pump 9 serves 21 wt.% straight-run fuel oil, preheated to a temperature of 80oC, stirred until a homogeneous mass. Produce analysis of selected samples. The quality of the received preventive material presented is of erial, taken in the following ratio, wt.%: 99,5 VAT residue and 0.5 of straight-run fuel oil. The quality of the resulting lubricant is also presented in table 3.

The other examples and the quality of the resulting lubricant in comparison with the prototype are also presented in table 3.

The obtained lubricating material is a thin oily liquid dark brown color, having a lower pour point, high lubricating ability in comparison with the prototype, and use its structure as a basic fraction of waste petrochemical production will significantly expand the resource base to obtain preventive lubricants, high performance, allowing you to use them to prevent primerzanie and freezing of coking coal at low temperatures during transportation, roads and quarries.

1. Preventive lubricant based heavy oil residue, characterized in that it further comprises a VAT residue production butyl alcohols in the following ratio, wt. %:

Bottom the remainder ol the material p. 1, characterized in that the heavy oil residue it contains straight-run fuel oil.

 

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FIELD: road servicing industry.

SUBSTANCE: the invention is dealt with the road servicing industry, in particular with the methods of extirpation of ice covering on motorways, bridges, flyovers, and also aerodromes. The method of the roadway covering slipperiness prevention provides for application of a roadway ice covering suppressing reactant based on acetate, in the capacity of which use a solution with pH=7-9.5, containing components in the following ratio (in mass %): magnesium acetate 13-17, potassium acetate 8-16, potassium hydrocarbonate 5-8, potassium carbonate 2-6, water-insoluble impurities 0-6, water - the rest. The roadway ice covering suppressing reactant may additionally contain a fired limestone in amount of 3-5 mass % in terms of calcium oxide. The method of production a roadway ice cover suppressing reactant for a roadway covering slipperiness prevention provides for mixing of a component containing a magnesium compound, iced acetic acid and water, in the capacity of the component containing the magnesium compound is used brucite, the stirring is exercised in two stages: first they continuously agitate brucite with water and a part of iced acetic acid in a stoichiometric ratio at the temperature of 50-70°C within 50-80 minutes, then, not terminating mixing at the same temperature in the produced mix with pH=5-6 add the rest of ice acetic acid and then add potash in amount exceeding by 0.1 - 6 % the stoichiometric ratio and continue agitation till production of the roadway ice cover suppressing reactant - a solution with pH = 7-9.5 with the above indicated composition. The used roadway ice cover suppressing reactant has composition mentioned above. The technical result consists in - maintenance of the low temperature at the reactant usage, ensuring the passing ice covered roadways motor vehicles metal corrosion protection and at use as the airfield runways coatings - the corrosion protection of metals used in aircraft designs as well. The roadway coating treated with the reactant has a high coefficient of adhesion, that reduces the accident rate on the roadways.

EFFECT: the invention ensures, that the roadway coating treated with the reactant decreases the accident rate on the roadways.

6 cl, 2 tbl, 4 ex

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