CN113088366A - Modified metal deactivation petroleum additive and preparation method and application thereof - Google Patents
Modified metal deactivation petroleum additive and preparation method and application thereof Download PDFInfo
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
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- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
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- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
Abstract
The invention discloses a modified metal deactivation petroleum additive, and belongs to the technical field of petroleum additives. The modified metal deactivated petroleum additive consists of 10-15 parts of metal deactivator, 7-8 parts of anti-foaming agent, 5-6 parts of antioxidant, 5-6 parts of detergent, 2-3 parts of extreme pressure antiwear agent, 3-5 parts of dispersant, 0.5-2 parts of amine stabilizer, 70-90 parts of solvent oil and 7-9 parts of auxiliary solvent according to the mass part ratio. The modified metal deactivation petroleum additive prepared by the invention has good oil solubility and good abrasion resistance, and has good corrosion inhibition effect on copper in a metal deactivation test.
Description
Technical Field
The invention belongs to the technical field of petroleum additives, and particularly relates to a modified metal deactivation petroleum additive and a preparation method and application thereof.
Background
Petroleum additives are a class of additives that are added to petroleum to enhance certain properties or to remedy certain deficiencies. Petroleum additives are classified into various types including metal deactivators, dispersants, antiwear agents, antioxidants, rust inhibitors, and antifoaming agents, etc. The metal deactivator has wide application in industrial oil, has the features of less consumption and obvious metal deactivating effect, and can inhibit the corrosion of corrosive matter in oil product to metal surface and has antioxidant assisting function. In lubricating oils, metal deactivators are generally not used alone, but in combination with antioxidants to enhance the corrosion and oxidation resistance of the oil. In the prior art, a single triazole derivative or thiadiazole derivative is used as a metal deactivator in the metal deactivation petroleum additive, so that the prepared additive only has the metal deactivation characteristics of the triazole derivative or thiadiazole derivative, and the performance is insufficient.
Disclosure of Invention
In order to solve the problems of single formula and poor performance of the metal deactivation petroleum additive in the prior art, the invention provides a modified metal deactivation petroleum additive and a preparation method and application thereof.
The scheme adopted by the invention is as follows:
a modified metal deactivation petroleum additive is composed of 10-15 parts of metal deactivator, 7-8 parts of antifoaming agent, 5-6 parts of antioxidant, 5-6 parts of detergent, 2-3 parts of extreme pressure antiwear agent, 3-5 parts of dispersant, 0.5-2 parts of amine stabilizer, 70-90 parts of solvent oil and 7-9 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator comprising methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole in a mass ratio of 1:0.1-0.3:0.9-1.2, and the amine stabilizer is a mixed amine stabilizer comprising triisopropanolamine and tallow alkyl amine ethoxylate in a mass ratio of 1: 0.5-0.8.
In a preferred embodiment of the present invention, the anti-foaming agent is a silicone oil type anti-foaming agent.
As a preferable technical scheme of the invention, the antioxidant is dioctyl diphenylamine or dinonyl diphenylamine.
As a preferred technical scheme of the invention, the detergent is sulfurized calcium alkyl phenate, calcium alkyl salicylate or calcium sulfonate.
As a preferable technical scheme of the invention, the extreme pressure antiwear agent is zinc bis (N, N-diamyl dithio-carbamate).
As a preferred technical scheme of the invention, the dispersing agent is Span80, T154 or oleic acid or polyethylene glycol distearate.
As a preferred embodiment of the present invention, the solvent oil is a poly-alpha olefin synthetic base oil, an ester synthetic base oil, or a polyether synthetic base oil.
In a preferred embodiment of the present invention, the auxiliary solvent is ethanol, acetone, cyclohexane or xylene.
A preparation method of a modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 400-600rpm, and stirring for 1-3h at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 1-2h under the conditions that the frequency is 60-80kHz and the power is 8-10kW, and then continuously stirring for 1-3h at the speed of 400-600 rpm;
C. adjusting the stirring speed to 300-400rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuing stirring for 0.5-2h at the speed of 300-400rpm after the dropwise addition of all the metal deactivators is finished;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
An application of the modified metal deactivated petroleum additive in petroleum and lubricating oil.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a modified metal deactivation petroleum additive, wherein an antifoaming agent, an antioxidant, a detergent, a dispersant and an extreme pressure antiwear agent are added while a metal deactivator is added, so that the additive has multiple functions, and a composite metal deactivator obtained by compounding three metal deactivators, namely methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl-dithio) -1,3, 4-thiadiazole is adopted, and the respective performance advantages of triazole and thiadiazole are combined to obtain a comprehensive metal deactivation petroleum additive;
(2) the modified metal deactivated petroleum additive provided by the invention shows good effect in performance test, the weight loss of copper in a hydrolytic stability test is 0.18-0.22mg, which is obviously less than that of a comparative example 0.6mg without the additive, the time in a rotating oxygen bomb test is 325-330min, which is more than 298min without the additive, and the time in a 190 ℃ PDSC test is 23-27 min, which is more than 16min without the additive, so that the modified metal deactivated petroleum additive provided by the invention is a good multifunctional additive.
Detailed Description
The present invention is further described with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the claims, and other alternatives which may occur to those skilled in the art are also within the scope of the claims.
Example 1
A modified metal deactivation petroleum additive is composed of 10 parts of metal deactivator, 7 parts of anti-foaming agent, 5 parts of antioxidant, 5 parts of detergent, 2 parts of extreme pressure anti-wear agent, 3 parts of dispersant, 0.5 part of amine stabilizer, 70 parts of solvent oil and 7 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator comprising methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole in a mass ratio of 1:0.1:0.9, and the amine stabilizer is a mixed amine stabilizer comprising triisopropanolamine and tallow alkyl ethoxylated amine in a mass ratio of 1: 0.5.
Specifically, the anti-foaming agent is dimethicone.
Specifically, the antioxidant is dioctyl diphenylamine.
Specifically, the detergent is T115B high base number calcium sulfurized alkylphenate.
Specifically, the extreme pressure antiwear agent is zinc bis (N, N-diamyldithiocarbamate).
Specifically, the dispersant is Span 80.
Specifically, the solvent oil is a poly-alpha olefin synthetic base oil.
In particular, the auxiliary solvent is ethanol.
The preparation method of the modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 400rpm, and stirring for 1h at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 1h under the conditions that the frequency is 60kHz and the power is 8kW, and then continuously stirring for 1h at the speed of 400 rpm;
C. adjusting the stirring speed to 300rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuously stirring for 0.5h at the speed of 300rpm after all the metal deactivator is dropwise added;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
The modified metal deactivated petroleum additive prepared by the preparation method is added into petroleum for convenient storage and transportation.
Example 2
A modified metal deactivation petroleum additive is composed of 15 parts of metal deactivator, 8 parts of anti-foaming agent, 6 parts of antioxidant, 6 parts of detergent, 3 parts of extreme pressure anti-wear agent, 5 parts of dispersant, 2 parts of amine stabilizer, 90 parts of solvent oil and 9 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator comprising methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole in a mass ratio of 1:0.3:1.2, and the amine stabilizer is a mixed amine stabilizer comprising triisopropanolamine and tallow alkyl ethoxylated amine in a mass ratio of 1: 0.8.
Specifically, the antifoaming agent is trifluoropropylmethylsilicone oil.
Specifically, the antioxidant is dioctyl diphenylamine.
Specifically, the detergent is T109 calcium alkylsalicylate.
Specifically, the extreme pressure antiwear agent is zinc bis (N, N-diamyldithiocarbamate).
In particular, the dispersant is dispersant T154.
Specifically, the mineral spirit is trimethylolpropane trioleate.
In particular, the auxiliary solvent is acetone.
The preparation method of the modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 600rpm, and stirring for 3 hours at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 2 hours under the conditions that the frequency is 80kHz and the power is 10kW, and then continuously stirring for 3 hours at the speed of 600 rpm;
C. adjusting the stirring speed to 400rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuously stirring for 2 hours at the speed of 400rpm after all the metal deactivator is dropwise added;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
The modified metal deactivated petroleum additive prepared by the preparation method is added into petroleum for convenient storage and transportation.
Example 3
A modified metal deactivation petroleum additive is composed of 12 parts of metal deactivator, 7.5 parts of anti-foaming agent, 5.5 parts of antioxidant, 5.5 parts of detergent, 2.5 parts of extreme pressure anti-wear agent, 4 parts of dispersant, 1 part of amine stabilizer, 80 parts of solvent oil and 8 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator with the mass ratio of methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole being 1:0.2:1, and the amine stabilizer is a mixed amine stabilizer with triisopropanolamine and tallow alkyl amine ethoxylate being 1: 0.6.
Specifically, the anti-foaming agent is dimethicone.
Specifically, the antioxidant is dinonyldiphenylamine.
In particular, the detergent is calcium sulphonate.
Specifically, the extreme pressure antiwear agent is zinc bis (N, N-diamyldithiocarbamate).
Specifically, the dispersing agent is polyethylene glycol distearate.
Specifically, the solvent oil has a kinematic viscosity of 10-12mm at 40 ℃2Polyether synthetic base oil/s.
In particular, the auxiliary solvent is cyclohexane.
The preparation method of the modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 500rpm, and stirring for 2 hours at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 1.5 hours under the conditions that the frequency is 70kHz and the power is 9kW, and then continuously stirring for 2 hours at the speed of 500 rpm;
C. adjusting the stirring speed to 350rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuously stirring for 1h at the speed of 350rpm after all the metal deactivator is dropwise added;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
The modified metal deactivated petroleum additive prepared by the preparation method is added into petroleum for convenient storage and transportation.
Example 4
A modified metal deactivation petroleum additive is composed of 10 parts of metal deactivator, 8 parts of anti-foaming agent, 5 parts of antioxidant, 6 parts of detergent, 2 parts of extreme pressure anti-wear agent, 5 parts of dispersant, 0.5 part of amine stabilizer, 90 parts of solvent oil and 7 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator comprising methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole in a mass ratio of 1:0.1:1.2, and the amine stabilizer is a mixed amine stabilizer comprising triisopropanolamine and tallow alkyl ethoxylated amine in a mass ratio of 1: 0.7.
Specifically, the antifoaming agent is trifluoropropylmethylsilicone oil.
Specifically, the antioxidant is dinonyldiphenylamine.
Specifically, the detergent is T109 calcium alkylsalicylate.
Specifically, the extreme pressure antiwear agent is zinc bis (N, N-diamyldithiocarbamate).
Specifically, the dispersant is T154.
Specifically, the solvent oil is a poly-alpha olefin synthetic base oil.
In particular, the auxiliary solvent is xylene.
The preparation method of the modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 400rpm, and stirring for 1h at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 2 hours under the conditions that the frequency is 80kHz and the power is 10kW, and then continuously stirring for 3 hours at the speed of 600 rpm;
C. adjusting the stirring speed to 300rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuing stirring for 2 hours at the speed of 300rpm after all the metal deactivator is dropwise added;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
The modified metal deactivated petroleum additive prepared by the preparation method is added into lubricating oil, is applied to mechanical equipment such as engines, reduces corrosion to the mechanical equipment and prolongs the service life.
Example 5
A modified metal deactivation petroleum additive is composed of 12 parts of metal deactivator, 7 parts of anti-foaming agent, 6 parts of antioxidant, 6 parts of detergent, 2 parts of extreme pressure anti-wear agent, 4 parts of dispersant, 2 parts of amine stabilizer, 75 parts of solvent oil and 9 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator with the mass ratio of methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole being 1:0.3:1, and the amine stabilizer is a mixed amine stabilizer with triisopropanolamine and tallow alkyl amine ethoxylate being 1: 0.5.
Specifically, the antifoaming agent is trifluoropropylmethylsilicone oil.
Specifically, the antioxidant is dioctyl diphenylamine.
Specifically, the detergent is T115B high base number calcium sulfurized alkylphenate.
Specifically, the extreme pressure antiwear agent is zinc bis (N, N-diamyldithiocarbamate).
In particular, the dispersant is dispersant T154.
Specifically, the solvent oil has a kinematic viscosity of 10-12mm at 40 ℃2Polyether synthetic base oil/s.
In particular, the auxiliary solvent is ethanol.
The preparation method of the modified metal deactivated petroleum additive comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 400rpm, and stirring for 2 hours at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 2 hours under the conditions that the frequency is 80kHz and the power is 8kW, and then continuously stirring for 1 hour at the speed of 600 rpm;
C. adjusting the stirring speed to 300rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuously stirring for 0.5h at the speed of 400rpm after all the metal deactivator is dropwise added;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
The modified metal deactivated petroleum additive prepared by the preparation method is added into lubricating oil, is applied to mechanical equipment such as engines, reduces corrosion to the mechanical equipment and prolongs the service life.
In order to characterize the metal deactivating properties of examples 1 to 5, the modified metal deactivated petroleum additives prepared in examples 1 to 5 were added to the thickened oils of the same composition, respectively, performing hydrolysis stability test to test the weight loss of copper in unit area, rotating oxygen bomb test and PDSC test, wherein the addition amount of the additive is 0.03 percent of the total mass of the thickened oil, the hydrolysis stability test method is SH/T0301-93 hydraulic fluid hydrolysis stability test method (glass bottle method), the rotating oxygen bomb test is SH/T0193-92 lubricating oil oxidation stability test method (rotating oxygen bomb method), the PDSC test is ASTM D6186-2008(2013), the standard test method for testing the oxidation induction time of lubricating oil by differential pressure scanning calorimetry (PDSC) is adopted, the test results are shown in Table 1, and the comparative example is the thickened oil without the modified metal deactivated petroleum additive.
TABLE 1 test results for examples 1-5
| Weight loss per unit area copper (mg) | Rotary oxygen bomb (min) | 190℃PDSC(min) | |
| Comparative example | 0.6 | 298 | 16 |
| Example 1 | 0.22 | 325 | 24 |
| Example 2 | 0.18 | 331 | 23 |
| Example 3 | 0.21 | 329 | 27 |
| Example 4 | 0.20 | 329 | 27 |
| Example 5 | 0.19 | 330 | 26 |
The test results in Table 1 show that the thickened oils to which the modified metal-deactivated petroleum additives prepared in examples 1-5 were added had a copper weight loss in hydrolytic stability test of 0.18-0.22mg significantly less than that of the comparative example of 0.6mg to which no additive was added, the thickened oils to which the modified metal-deactivated petroleum additives prepared in examples 1-5 were added in rotational bomb test had a time of 325-330min and greater than 298min to which no additive was added, the thickened oils to which the modified metal-deactivated petroleum additives prepared in examples 1-5 were added in PDSC test at 190 ℃ had a time of 23-27 min and greater than 16min to which no additive was added, therefore, the modified metal deactivated petroleum additive has good oil solubility and good abrasion resistance, the corrosion inhibitor has good effect of inhibiting the corrosion of copper in a metal deactivation test, and is a good petroleum additive.
The above examples relate to some of the following sources of raw materials:
3-salicylamido-1, 2, 4-triazole, CAS number: 36411-52-6 from Shanghai Yaxing biological medicine science and technology Limited;
2, 5-bis (tert-dodecyl-dithio) -1,3, 4-thiadiazole, CAS number: 59656-20-1, available from Panhua chemical (Shanghai) Co., Ltd;
polyethylene glycol distearate, CAS No.: 9005-08-7, available from Strouch chemical (Shanghai) Co., Ltd;
trimethylolpropane trioleate, CAS No.: 57675-44-2, available from Shanghai leaf Biotech, Inc.;
tallow alkyl ethoxylated amine, CAS number: 61791-26-2, available from Nantong Chen Runji chemical Co., Ltd;
the calcium T109 alkylsalicylate was from saint chemicals, inc, ca;
the T115B high base number sulfurized calcium alkyl is from Tadapetrochemical company, Xin Ji, Hebei;
poly-alpha olefin synthetic base oil, CAS No.: 68037-01-4, from Panhua chemistry (Shanghai) Co., Ltd.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A modified metal deactivated petroleum additive characterized by: the lubricant consists of 10-15 parts of metal deactivator, 7-8 parts of anti-foaming agent, 5-6 parts of antioxidant, 5-6 parts of detergent, 2-3 parts of extreme pressure anti-wear agent, 3-5 parts of dispersant, 0.5-2 parts of amine stabilizer, 70-90 parts of solvent oil and 7-9 parts of auxiliary solvent according to the mass part ratio;
the metal deactivator is a mixed metal deactivator comprising methylbenzotriazole, 3-salicylamido-1, 2, 4-triazole and 2, 5-di (tert-dodecyl dithio) -1,3, 4-thiadiazole in a mass ratio of 1:0.1-0.3:0.9-1.2, and the amine stabilizer is a mixed amine stabilizer comprising triisopropanolamine and tallow alkyl amine ethoxylate in a mass ratio of 1: 0.5-0.8.
2. The modified metal deactivated petroleum additive of claim 1, wherein: the anti-foaming agent is a silicone oil type anti-foaming agent.
3. The modified metal deactivated petroleum additive of claim 1, wherein: the antioxidant is dioctyl diphenylamine or dinonyl diphenylamine.
4. The modified metal deactivated petroleum additive of claim 1, wherein: the detergent is one of calcium alkyl phenol sulfide, calcium alkyl salicylate or calcium sulfonate.
5. The modified metal deactivated petroleum additive of claim 1, wherein: the extreme pressure antiwear agent is zinc bis (N, N-diamyl dithiocarbamic acid).
6. The modified metal deactivated petroleum additive of claim 1, wherein: the dispersant is Span80, T154 or oleic acid or polyethylene glycol distearate.
7. The modified metal deactivated petroleum additive of claim 1, wherein: the solvent oil is poly-alpha olefin synthetic base oil, ester synthetic base oil or polyether synthetic base oil.
8. The modified metal deactivated petroleum additive of claim 1, wherein: the auxiliary solvent is ethanol, acetone, cyclohexane or xylene.
9. A method for preparing the modified metal deactivated petroleum additive as claimed in claim 1, wherein the method comprises the steps of: the method comprises the following steps:
A. adding the antifoaming agent, the antioxidant, the detergent, the dispersant, the solvent oil and the auxiliary solvent into a stirrer according to the mass part ratio, controlling the stirring speed to be 400-600rpm, and stirring for 1-3h at the speed;
B. adding an extreme pressure antiwear agent and an amine stabilizer into the mixed solution obtained in the step A, ultrasonically oscillating for 1-2h under the conditions that the frequency is 60-80kHz and the power is 8-10kW, and then continuously stirring for 1-3h at the speed of 400-600 rpm;
C. adjusting the stirring speed to 300-400rpm, dropwise adding the metal deactivator into the mixed solution obtained in the step B while stirring, and continuing stirring for 0.5-2h at the speed of 300-400rpm after the dropwise addition of all the metal deactivators is finished;
D. and D, cooling the mixed solution obtained in the step C at room temperature, and filtering to obtain the modified metal deactivated petroleum additive.
10. Use of the modified metal deactivated petroleum additive of claim 1 in petroleum.
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