CN108728225B - Lubricating grease and preparation method thereof - Google Patents
Lubricating grease and preparation method thereof Download PDFInfo
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- CN108728225B CN108728225B CN201810750961.2A CN201810750961A CN108728225B CN 108728225 B CN108728225 B CN 108728225B CN 201810750961 A CN201810750961 A CN 201810750961A CN 108728225 B CN108728225 B CN 108728225B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F122/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F122/10—Esters
- C08F122/12—Esters of phenols or saturated alcohols
- C08F122/14—Esters having no free carboxylic acid groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/16—Ethers
- C10M129/20—Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
- C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/06—Groups 3 or 13
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Lubricants (AREA)
Abstract
The invention provides healthy and environment-friendly lubricating grease which is characterized in that: is prepared from raw materials containing 5-15 wt% of soapberry extract. The soapberry extract contains triterpenoid saponins such as soapberry saponin and the like, is a natural saponification thickening agent, and has the functions of self-cleaning, antibiosis, inflammation diminishing, antioxidation, free radical removal and the like. The organic neodymium salt is a good saponification thickening agent and has good lubricating property; pentaerythritol tetraisooctanoate has good lubricity, oxidation stability and degradability, and meanwhile, the components of the product are mainly selected from natural raw materials, so that the environment-friendly performance is good; the polyester endows the lubricating grease product with certain fluidity, and can increase the extreme pressure wear resistance and lubricity of the product.
Description
Technical Field
The invention belongs to the technical field of lubricating grease, and particularly relates to lubricating grease and a preparation method thereof.
Background
The traditional lubricating grease processing technology comprises the following steps: the grease or fatty acid is added with inorganic alkali (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminium hydroxide, barium hydroxide, etc.) to prepare metal soap as thickening agent or organic or inorganic thickening agent is added with mineral oil or synthetic oil for processing and thickening, the mineral oil or synthetic oil is mainly stored in a frame formed by the thickening agent, under the action of movement pressure and temperature, the oil stored in the thickening agent escapes to play a role in lubrication, and the grease or fatty acid shows the physical characteristics of a paste at normal temperature and normal pressure.
The need for grease lubrication in transmission parts for processing, storing and transporting food, medicine, and the like is a wonderful subject.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide lubricating grease.
The invention provides lubricating grease which is characterized in that: is prepared from raw materials containing 5-15 wt% of soapberry extract.
Further, the lubricating grease of the invention also has the following characteristics: namely, the soapberry saponin content in the soapberry extract is not less than 30%. Commercial soapberry extract can be selected. The fructus Sapindi Mukouossi extract contains triterpenoid saponin such as sapindoside, is a natural nonionic surfactant and saponification thickening agent, and has self-cleaning, antibacterial, antiinflammatory, antioxidant and free radical scavenging effects.
Further, the lubricating grease of the invention also has the following characteristics: namely, the extraction method of the soapberry extract comprises the following steps: pulverizing dried soapberry peel to 30-100 mesh, adding low carbon alcohol solution (with concentration of 50-60%), ultrasonic extracting for 12-36 hr, discharging or recovering low carbon alcohol and water under reduced pressure, dealcoholizing, dehydrating, and drying to remove impurities to obtain soapberry extract.
Further, the lubricating grease of the invention also has the following characteristics: that is, the lower alcohol is selected from alcohols having not more than 10 carbon atoms, preferably one or more selected from ethanol, n-propanol and isopropanol.
Further, the lubricating grease of the invention also has the following characteristics: the paint is prepared from the following components in percentage by weight:
further, the lubricating grease of the invention also has the following characteristics: namely, the organic neodymium salt is prepared from neodymium oxide and fatty acid in a molar ratio of 1: 3-4;
the fatty acid is selected from one or more of saturated or unsaturated fatty acids with carbon atom number of 8-20;
the fatty acid is preferably one or more selected from isooctanoic acid, n-capric acid, lauric acid, palmitic acid, myristic acid, linoleic acid, oleic acid and stearic acid;
the polymeric ester is one or more selected from polyricinoleate, polyisobutylene polybutylene dicarboxylate and polybutylene dicarboxylate.
Further, the lubricating grease of the invention also has the following characteristics: namely, the preparation method of the organic neodymium salt comprises the following steps: neodymium oxide and fatty acid are put into a stirrer and reacted at the temperature of 90-110 ℃ until no obvious particles are observed in a sample (generally, the reaction lasts for 2-3 hours), and the organic neodymium salt is obtained.
Further, the lubricating grease of the invention also has the following characteristics: namely, the polybutylene succinate is prepared by the following process steps:
the method comprises the following steps: adding butenedioic acid and monohydric alcohol into a polymerization kettle, adding a catalyst, introducing nitrogen to convert air in the reaction kettle, reacting at the temperature of 180-220 ℃ for 3-5 hours, and then decompressing to discharge water, namely the butenedioic ester;
and step two, adding an initiator into the polymerization kettle, stirring, keeping the reaction temperature at 160-. Generally, the polybutylene succinate is a mixture of polymerization products.
Further, the lubricating grease of the invention also has the following characteristics: that is, the molar ratio of the above-mentioned butenedioic acid to the monohydric alcohol is: 1: 1.8-2.2; preferably 1: 2.
the monohydric alcohol is one or more selected from monohydric alcohols with 1-18 carbon atoms; the C4-18 monohydric alcohol is preferred. More preferably, 2 to 3 different alcohols are used to participate in the reaction.
The monohydric alcohol is selected from one or more of isobutanol, n-butanol, isooctanol, n-pentanol, lauryl alcohol, oleyl alcohol, isomeric tridecanol and isomeric hexadecanol;
the catalyst is an acid catalyst;
the catalyst is phosphoric acid; the effective weight percentage of the phosphoric acid is 0.5-1% of the total reactants. The benefits of selecting phosphoric acid are: the phosphate generated by the esterification reaction of phosphoric acid and monohydric alcohol is an excellent extreme pressure antiwear agent, so that after the reaction is finished, the catalyst does not need to be separated, and the extreme pressure antiwear performance can be improved when the phosphate is used in lubricating grease.
The initiator is selected from dibenzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, tert-butyl hydroperoxide, di-tert-butyl peroxide, dicumyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, cyclohexanone peroxide, diisopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, diethylhexyl peroxydicarbonate, azobisisobutyronitrile and azobisisoheptonitrile.
The use amount of the initiator is as follows: the ratio of the using amount of the initiator to the using amount of the acrylic monomer is 0.5-1%.
Further, the lubricating grease of the invention also has the following characteristics: namely, the preparation method comprises the following steps: mixing the soapberry extract and other components, and stirring at 180-200 deg.C for 1-2 hr.
The invention has the beneficial effects that:
the soapberry extract contains triterpenoid saponins such as soapberry saponin and the like, is a natural saponification thickening agent, and has the functions of self-cleaning, antibiosis, inflammation diminishing, antioxidation, free radical removal and the like. The organic neodymium salt is a good saponification thickening agent and has good lubricating property; pentaerythritol tetraisooctanoate has good lubricity, oxidation stability and degradability, and meanwhile, the components of the product are mainly selected from natural raw materials, so that the environment-friendly performance is good; the polyester endows the lubricating grease product with certain fluidity, and can increase the extreme pressure wear resistance and lubricity of the product.
Detailed Description
Example 1:
100g of soapberry extract, 100g of organic neodymium salt, 400g of pentaerythritol tetraisooctanoate and 400g of polymeric ester Priolube1929 (commercially available from Croda) were weighed and stirred at 190 ℃ for 90 minutes to obtain a grease.
The extraction method of the soapberry extract comprises the following steps: pulverizing dried soapberry peel to 100 mesh, weighing 1000g, adding 4000g 50% ethanol solution, leaching for 24 hr with ultrasonic wave, removing part of ethanol and water under reduced pressure, filtering to remove impurities, dealcoholizing, dehydrating, and drying.
The preparation method of the organic neodymium salt comprises the following steps: 329.81g (1mol) of neodymium oxide and 847.41g (3mol) of oleic acid are weighed and put into a stirrer to be stirred and reacted for 2.5 hours at the temperature of 100 ℃, and the organic neodymium salt is obtained.
The grease prepared above was subjected to a roller stability test according to SH/T0122:
respectively and uniformly coating the prepared lubricating grease and certain brand No. 2 lubricating grease on a carbon steel sheet for natural placement and rust spot observation and carrying out a damp-heat test according to GB/T2361:
| item | Grease for the present example | Comparative grease |
| Naturally placed and observed rusty spot (sky) | 30 | 20 |
| Damp-heat test GB/T2361@50 ℃ (0 grade. h) | 168 | 120 |
Example 2:
weighing 50g of soapberry extract, 150g of organic neodymium salt, 500g of pentaerythritol tetraisooctanoate and 300g of polybutylene succinate, and stirring at the temperature of 200 ℃ for 60 minutes to obtain the lubricating grease.
The above Sapindus mukurossi extract is selected from commercially available products (produced by Sienming Biotech limited, labeled Sapindus mukurossi Saponin content 70%).
The preparation method of the organic neodymium salt comprises the following steps: 329.81g (1mol) of neodymium oxide and 576.8g (4mol) of isooctanoic acid are weighed and put into a stirrer to be stirred and reacted for 2 hours at the temperature of 110 ℃, and the organic neodymium salt is obtained.
The preparation method of the polybutylene succinate comprises the following steps:
the method comprises the following steps: 116.07g of maleic acid (1mol), 268.49 of oleyl alcohol (1mol), 130.23 of isooctanol and 5g of phosphoric acid (85% concentration) are added into a polymerization kettle, nitrogen is added to convert air in the reaction kettle to react, and the reaction temperature is as follows: the reaction time is as follows at 200 ℃: 4 hours; and (4) decompressing after the reaction to discharge water, namely the butenedioic ester.
And step two, adding 4g of initiator (lauroyl peroxide) into the polymerization kettle, stirring, keeping the reaction temperature at 170 ℃, discharging the polymer in the polymerization kettle after 4 hours of polymerization reaction, and filtering at the temperature of more than 100 ℃ to remove impurities, namely the polybutylene succinate.
Example 3:
150g of soapberry extract, 100g of organic neodymium salt, 400g of pentaerythritol tetraisooctanoate and 350g of polyricinoleate (L4) are weighed and stirred at the temperature of 180 ℃ for 2 hours to obtain lubricating grease.
The extraction method of the soapberry extract comprises the following steps: pulverizing dried soapberry pericarp to 50 mesh, adding 60% n-propanol solution, leaching with ultrasonic wave for 24 hr, removing part of n-propanol and water under reduced pressure, filtering to remove impurities, dealcoholizing, dehydrating, and drying.
The preparation method of the organic neodymium salt comprises the following steps: 329.81g (1mol) of neodymium oxide and 730.78g (3.2mol) of myristic acid are weighed and put into a stirrer to be stirred and reacted for 3 hours at the temperature of 95 ℃, and the organic neodymium salt is obtained.
Respectively and uniformly coating the prepared lubricating grease and certain brand No. 2 lubricating grease on a carbon steel sheet for natural placement and rust spot observation and carrying out a damp-heat test according to GB/T2361:
example 4:
80g of soapberry extract, 70g of organic neodymium salt, 470g of pentaerythritol tetraisooctanoate and 380g of trimeric ricinoleate are weighed and stirred at the temperature of 180 ℃ for 2 hours to obtain the lubricating grease.
The above Sapindus mukurossi extract is commercially available.
The preparation method of the organic neodymium salt comprises the following steps: 329.81g (1mol) of neodymium oxide and 721.15g (3.6mol) of lauric acid are weighed and put into a stirrer to be stirred and reacted for 3 hours at the temperature of 90 ℃, and the organic neodymium salt is obtained.
Example 5:
120g of soapberry extract, 50g of organic neodymium salt, 460g of pentaerythritol tetraisooctanoate and 370g of polymeric ester Palub8646 (manufactured by Baida chemical company) were weighed and stirred at 180 ℃ for 2 hours to obtain a grease.
The fructus Sapindi Mukouossi extract is commercially available product.
329.81g (1mol) of neodymium oxide and 568.46g (3.3mol) of n-decanoic acid are weighed and put into a stirrer to be stirred and reacted for 2.5 hours at the temperature of 105 ℃, and the organic neodymium salt is obtained.
Claims (16)
1. The lubricating grease is characterized by being prepared from the following components in percentage by weight:
the soapberry saponin content in the soapberry extract is not less than 30%.
2. The grease of claim 1, wherein:
the extraction method of the soapberry extract comprises the following steps: pulverizing dried soapberry peel to 30-100 mesh, adding low carbon alcohol solution, ultrasonic extracting, discharging or recovering low carbon alcohol and water under reduced pressure, dealcoholizing, dehydrating, and drying to remove impurities to obtain soapberry extract.
3. A grease according to claim 2, wherein:
the lower alcohol is selected from one or more of ethanol, n-propanol or isopropanol.
4. The grease of claim 1, wherein:
the organic neodymium salt is prepared from neodymium oxide and fatty acid in a molar ratio of 1: 3-4.
5. The grease of claim 4, wherein:
the fatty acid is selected from one or more of saturated or unsaturated fatty acids with 8-20 carbon atoms.
6. The grease of claim 4, wherein:
the fatty acid is selected from one or more of isooctanoic acid, n-capric acid, lauric acid, palmitic acid, myristic acid, linoleic acid, oleic acid and stearic acid.
7. The grease of claim 1, wherein:
the polymeric ester is selected from one or more of polyricinoleate, polyisobutene polybutylene dicarboxylate and polybutylene dicarboxylate.
8. The grease of claim 1, wherein:
the preparation method of the organic neodymium salt comprises the following steps: putting neodymium oxide and fatty acid into a stirrer, and reacting at the temperature of 90-110 ℃ until no obvious particulate matters are observed in a sample, namely the organic neodymium salt is obtained;
the organic neodymium salt was used directly as a grease.
9. The grease of claim 7, wherein:
the polybutylene succinate is prepared by the following process steps:
the method comprises the following steps: adding butenedioic acid and monohydric alcohol into a polymerization kettle, adding a catalyst, introducing nitrogen to convert air in the reaction kettle, reacting at the temperature of 180-220 ℃ for 3-5 hours, and then decompressing to discharge water, namely the butenedioic ester;
and step two, adding an initiator into the polymerization kettle, stirring, keeping the reaction temperature at 160-.
10. The grease of claim 9, wherein:
the molar ratio of the butenedioic acid to the monohydric alcohol is: 1: 1.8-2.2.
11. The grease of claim 9, wherein:
the monohydric alcohol is selected from one or more of monohydric alcohols with 1-18 carbon atoms.
12. The grease of claim 9, wherein:
the monohydric alcohol is selected from one or more of isobutanol, n-butanol, isooctanol, n-pentanol, lauryl alcohol, oleyl alcohol, isomeric tridecanol and isomeric hexadecanol.
13. The grease of claim 9, wherein:
the catalyst is selected to be an acidic catalyst.
14. The grease of claim 9, wherein:
the catalyst is selected from phosphoric acid.
15. The grease of claim 9, wherein:
the initiator is selected from dibenzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, tert-butyl hydroperoxide, di-tert-butyl peroxide, dicumyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, cyclohexanone peroxide, diisopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, diethylhexyl peroxydicarbonate, azobisisobutyronitrile and azobisisoheptonitrile.
16. A grease according to any one of claims 1 to 15, characterised in that it is prepared by a process comprising: mixing the soapberry extract and other components, and stirring at 180-200 deg.C for 1-2 hr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810750961.2A CN108728225B (en) | 2018-07-10 | 2018-07-10 | Lubricating grease and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810750961.2A CN108728225B (en) | 2018-07-10 | 2018-07-10 | Lubricating grease and preparation method thereof |
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| CN108728225A CN108728225A (en) | 2018-11-02 |
| CN108728225B true CN108728225B (en) | 2020-08-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1043140B9 (en) * | 2019-02-05 | 2020-10-30 | J H Terwel | Lubricant for, among other things, cold forming of metal and / or for other, especially heavy applications |
| CN114369485A (en) * | 2020-10-15 | 2022-04-19 | 山东清沂山石化科技有限公司 | Environment-friendly shield tail sealing grease and preparation method thereof |
| CN114369486A (en) * | 2020-10-15 | 2022-04-19 | 山东清沂山石化科技有限公司 | Biodegradable water-resistant shield tail sealing grease |
| CN114369493A (en) * | 2020-10-15 | 2022-04-19 | 山东清沂山石化科技有限公司 | Preparation method of biodegradable water-resistant shield tail sealing grease |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375027A (en) * | 2006-01-30 | 2009-02-25 | 罗地亚管理公司 | Method of improving an engine using a lubricating composition comprising a colloidal dispersion of a rare earth to catalyse the combustion of soot |
| CN104327744A (en) * | 2014-09-23 | 2015-02-04 | 北京泰克美高新技术有限公司 | Application of Chinese soapberry extract and Chinese soapberry composition in automobile washing and washing |
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2018
- 2018-07-10 CN CN201810750961.2A patent/CN108728225B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375027A (en) * | 2006-01-30 | 2009-02-25 | 罗地亚管理公司 | Method of improving an engine using a lubricating composition comprising a colloidal dispersion of a rare earth to catalyse the combustion of soot |
| CN104327744A (en) * | 2014-09-23 | 2015-02-04 | 北京泰克美高新技术有限公司 | Application of Chinese soapberry extract and Chinese soapberry composition in automobile washing and washing |
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| CN108728225A (en) | 2018-11-02 |
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