A method of manufacturing an alkaline reagent for regeneration of lubricating oil

 

(57) Abstract:

Use: manufacture of alkaline reagent for regeneration of lubricating oils. The inventive method of manufacturing an alkaline reagent for regeneration of lubricating oil comprises preparing a melt of the components containing metals of variable IV-V groups and metals of groups I-II, in which when the temperature of 10-70oC above the melting temperature of the alloy is immersed metal filler, made from the waste of Metalworking in the form of a porous element, and incubated for 1-15 min, and then the filler is removed from the melt, is immersed in an inert environment and cool, with a mass ratio of filler alloy is 0.1-10:1. 3 C.p. f-crystals, 1 Il., table 1.

The invention relates to the field of mechanical engineering, power engineering, chemical and petrochemical industry, specifically, to the field of production of alkaline multicomponent alloys, in particular , is used as the alkaline reagent for regeneration of lubricating oils.

There is a method of extending the service life of parts friction and aging of lubricating oil during operation of the mechanisms by introducing lubricants metal additives and Gulidov, as metal dobbie of galaida /A. C. the USSR N 152601, class C 23 C 26/00, 1969/.

The disadvantage of such an alkaline reagent is the high reactivity of the alloy, the tendency to rapid oxidation in air, an explosive concentrations of hydrogen in air at interaction with water contained in the oil.

The objective of the invention is to increase the efficiency of the regeneration of lubricating oils and efficiency of this process.

The proposed new method of manufacturing an alkaline reagent for regeneration of oils gives made a new way reactant new features that allow to solve the problem.

The proposed method involves the fusion of metals of variable valence of group IV and V metals of groups I and II and the mixing of this alloy with a metal filler. The novelty with respect to the prototype is the method of preparation of the filler and the coupling of the reagent. According to the invention, the filler is made of waste metal, for example, of metal shavings, extruding them to the size that allows you to put the filler in the filter, i.e. the size of the oil filter. Thus obtained porous element is dipped in the melt alkaline reage in the melt 1 - 15 minutes, removed from the melt, is immersed in an inert environment and stand there until they reach the inert medium and the reagent at ambient temperature. Reagent fills the pores of the filler in a mass ratio of from 0.1 : 1 to 10 : 1. Proposed preparation of an alkaline reagent. Proposed to fuse the oxides, hydroxides, carbonates, acetates, and other salts of metals of variable valency IV and V groups or concentrates containing ores with oxides, hydroxides, carbonates or other salts of metals of groups I and II. As the inert environment, you can use mineral, vegetable or synthetic oil, cellosolve, paraffin, ceresin.

The proposed method of manufacture of an alkaline reagent allows you to get a new device for the regeneration of the lubricating oils in which the package with the reagent and filler allows you to clear the oil more effectively by increasing the area of interaction of the oil with a reagent due to multiple porosity package with the reagent and filler. In addition, this embodiment of the package easier to use.

The drawing shows a graph of alkalinity recycled motor oil during oxidation in vitro.

oC. In the melt heated to 640oC /which is above the melting temperature 40oC/ loaded porous element, pressed from shavings Al in size filetrading cartridge. The porous element is maintained in the melt 12 minutes the temperature of the melt drops to 610oC/, then the porous element is immersed in cellosolve at to= 100oC and kept until they reach ambient temperature. Then took the porous element and put it in filtrowanie cartridge.

Next was comparing this agent with an alkaline reagent, obtained by the method of the prototype by fusing NaOH + SnO2(3 : 1) and fill the same filter cartridge granules alkaline reagent with filler. In filtrowanie cartridge was placed: - 112 g of an alkaline reagent NaOH + SnO and 20 g of filler Al in the form of metal rings

- 32 g of an alkaline reagent tin ore concentrate + soda lime and 92 g of the porous element of Al molded chips.

Comparative laboratory tests was performed using a device on the bus. mon. USSR N 1772703, CL G 01 N 33/28, 1992 for testing lubricating oils to oxidation. The tests were carried out for 10 hours on two parallel to scost 10,65 cSt, base number - to 4.73 mg KOH/g oil and a flash point of 215oC. When this temperature was maintained test 110oC and the circulation rate of 1.3 l/min test Temperature to= 110oC due to the fact that studies have shown that when processing an alkaline reagent recycled motor oil /RMP/ to= 110oC there is a rapid stabilization of the base number without prior deep oxidation, as at other temperatures.

At a temperature of, for example, to= 140oC observed sintering or mechanical destruction of the granules of the reactants, and the temperature of the test leads to undesirable excessive growth base number.

Lowering the test temperature increases the duration of the test, as well as partial passivation of an alkaline reagent.

Comparative tests of alkaline reagent solution and the prototype was conducted in order to clarify the changes in the alkalinity of the recycled engine oil depending on the amount of alkaline reagent in filterdesign Chuck.

The studies were conducted with the number of alkaline reagent is>The results are shown in the drawing.

The test level is set to stabilize alkalinity shown in the table (see the end of the description).

When the kinematic viscosity of the recycled motor oil stabilized within 12 FTAs already 8 hour test using the proposed solution.

The consumption of alkaline reagent Vpduring the test of the prototype is significantly higher compared with consumption in the proposed solution at the initial stage of the test.

The introduction of even a small amount of alkaline reagent (8.6 g) provides stabilization base number level (3.8 mg KOH/g) higher than the acceptance value (3.0 mg KOH/g). Increased levels of alkaline reagent (112 g) in the circuit (up to 10 weight %) leads to a significant increase in the base number (15,5 ml KOH/g) of its stabilization after 12 hours of testing and, as a consequence, to the corrosive wear. Tests for corrosion resistance held at the office of Pinkevich AP-1 according to GOST. In the area of concentration of the alkaline reagent (2,3%) stabilization mode is provided after 8 hours of testing at the level of 6.2 mg KOH/g

If further testing is regenerated motor is started to descend, in the proposed solution stabilization was observed for 5 hours. In the fall alkaline number of recovered motor oils prototype tests were suspended for the purpose of conducting the audit of the working of an alkaline reagent /external inspection, weighing, checking for activity/. Alkaline reagent prototype has destroyed granules, robrady sludge granules it is not active because there is partial resinification. Alkaline reagent solutions proposed active, visible damage no. The quantity of alkaline reagent in the prototype decreased by 61% compared with the initial quantity, the quantity of alkaline reagent in the proposed solution decreased by 47%.

1. A method of manufacturing an alkaline reagent for regeneration of lubricating oil-based alloy of the metals with variable valence metal IV - V groups, deposited on a metal filler, wherein preparing a melt of the components containing metals of variable valency IV - V groups and metals of groups I - II, in which at a temperature of 10 to 70oC above the melting temperature of the alloy is immersed metal filler, made from the waste of Metalworking in the form of a porous element, and withstand the compared filler alloy is 0.1 - 10 : 1.

2. The method according to p. 1, characterized in that as component containing metals of groups I - II, use the oxides, hydroxides or salts of these metals, and components containing metals of variable valency IV - V groups, use the oxides, hydroxides, salts of these metals or concentrates containing ores.

3. The method according to PP.1 and 2, characterized in that as the inert environment of the use of mineral, vegetable or synthetic oil, cellosolve, paraffin, ceresin.

4. The method according to p. 1, characterized in that the use of filler made of ferrous and/or non-ferrous metals, their alloys or mechanical mixtures.

 

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