News Details
Oil antioxidants
2018-1-10 11:30:03
Oil antioxidants
Lubricating oil antioxidants and anti-oxygen corrosion inhibitors are affected by various lubricating oil users, especially the industrial sectors of various internal combustion engines (including various gasoline engines, diesel engines, etc.).
With the progress of the technology department, such as improvements in the design and material, various new requirements are put forward on the product quality, at the same time to petrochemical, oil refining, chemical industry, especially in the basis of product application based on the research progress of chemistry, chemical technology and the modern organic synthesis and product application of performance evaluation of the development of technology for conditions, gradually developed lube antioxidants.
In 1914, in order to improve the oxidation stability of olefin cracking gasoline, a class of phenolic and amine antioxidant was developed. In the late 1920s, with the development of turbine, 2, 6-ditert-butyl was used in turbine oil, which is still used as the main antioxidant in industrial oil.
In this phase, hydroquinone and other antioxidants were added to the transformer oil, which greatly extended the life of the oil. A year later, due to the development of auto industry, the sharp rise in internal combustion engine compression ratio, babbitt alloy bearing material exposed the defects of high load, high temperature, so that all kinds of cemented carbide materials such as copper, lead gradually widely used, but due to the lubricating oil oxidation product of the cemented carbide are prone to corrosion, asked to join antioxidant anticorrosion agent.
Therefore, in 1930, the anti-oxidant anti-corrosion agent was studied to select zinc dialkyl dithiophosphate products. Although the product has been used in internal combustion engine oil for many years, there are no other types of better anti-oxygen corrosion inhibitors available to replace it. Since the end of the second world war, the additives used in motor oil use have been basically mature, but when used for aero engines, they have failed because of the ash content in the additives. With the appearance of ash dispersing agent, the compound of bisphenol-type anaerosol was developed, which was successfully used in piston aviation engine oil.
The United States had an early aging problem in the 1970s. Under the condition of high temperature, high load, speed, easy to form colloid and sludge at low temperature, lubricating oil make its viscosity increases, affect the normal operation of the engine, and the reasonable solution is still using high thermal stability of dialkyl disulfide generation of zinc phosphate salt.
Triphenyl phosphite (antioxidant, stabilizer TPPi)
Packing method: net weight of 200KG/galvanized iron bucket (a small cabinet to hold 16 tons), 1000KG/IB (a small container with 18 tons) or 23 tons of it.
Port of shipment: Shanghai port
Price quotation validity: 15 days
Warehouse time: within 15 days (customs clearance)
Export rights: our own right to import and export.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
The current situation of oil antioxidant. Several typical antioxidants are present. The antioxidant can significantly delay the oxidation rate of oil and prolong the service life of oil. For example, when the oil of the transformer is added with benzodiazepine or the anti-oxidant, it can extend the life span of oil products from 3 months to 1 year to more than 15 years. At present, its output is second only to pure dispersants. The classification of antioxidant products can be divided according to functional groups, and can be classified according to the mechanism of action and function.
Phenolic antioxidants are older and have been used in petroleum products since the early 1900s. The most commonly used is 2, 6-ditert-butyl, which is the main antioxidant in industrial oil in China. The use temperature of phenolic antioxidant is low, which is commonly used in general purpose machine oil, turbine oil, hydraulic oil and transformer oil. The general dosage is 0.1% ~ 0.5%. Because of the low temperature of the single-ring screen, a type of diester compound was developed, which can be used in internal combustion engine oil.
Aromatic amine type compound antioxidant use temperature is higher than phenolic type, for 120 ~ 150 ℃. It is easy to change the color of oil and precipitate, and it is very toxic. Therefore, it is restricted in industrial oil, mainly used in compressor oil.
Alkyl HuaEr aniline type antioxidants due to high temperature oxidation performance is good, it is mainly used for ester synthetic oil, as the jet turbine engine lubricating oil antioxidants, can also be used in the mineral base oil, modulation of APl quality grade internal combustion engine oil, such as SF, SG, SH, SJ, etc.
Phenolamine antioxidant is a kind of bifunctional group, which has the characteristics of phenolamine and amine antioxidant. It is different from aromatic amine type is not precipitation after oxidation, can be used for heavy duty industrial oil, which can withstand temperatures up to 149 ℃, but compared with bisphenol a, high temperature performance is a bit poor.
ZDDP is a kind of antioxidant containing sulfur and phosphorus. It has the function of corrosion resistance and anti-wear. It is a multi-effect additive. It has a history of more than 50 years, the use of temperature above 130 ℃, dosage of more also, mainly used in internal combustion engine oil, anti-wear hydraulic oil. At present, foreign oil series gasoline engine oil is mainly SH and SJ. Diesel engine oil is mainly CE and CF. The anti-oxygen and anti-corrosive agents used in the preparation of these oils are still dominated by ZDDP.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Lubricating oil antioxidants and anti-oxygen corrosion inhibitors are affected by various lubricating oil users, especially the industrial sectors of various internal combustion engines (including various gasoline engines, diesel engines, etc.).
With the progress of the technology department, such as improvements in the design and material, various new requirements are put forward on the product quality, at the same time to petrochemical, oil refining, chemical industry, especially in the basis of product application based on the research progress of chemistry, chemical technology and the modern organic synthesis and product application of performance evaluation of the development of technology for conditions, gradually developed lube antioxidants.
In 1914, in order to improve the oxidation stability of olefin cracking gasoline, a class of phenolic and amine antioxidant was developed. In the late 1920s, with the development of turbine, 2, 6-ditert-butyl was used in turbine oil, which is still used as the main antioxidant in industrial oil.
In this phase, hydroquinone and other antioxidants were added to the transformer oil, which greatly extended the life of the oil. A year later, due to the development of auto industry, the sharp rise in internal combustion engine compression ratio, babbitt alloy bearing material exposed the defects of high load, high temperature, so that all kinds of cemented carbide materials such as copper, lead gradually widely used, but due to the lubricating oil oxidation product of the cemented carbide are prone to corrosion, asked to join antioxidant anticorrosion agent.
Therefore, in 1930, the anti-oxidant anti-corrosion agent was studied to select zinc dialkyl dithiophosphate products. Although the product has been used in internal combustion engine oil for many years, there are no other types of better anti-oxygen corrosion inhibitors available to replace it. Since the end of the second world war, the additives used in motor oil use have been basically mature, but when used for aero engines, they have failed because of the ash content in the additives. With the appearance of ash dispersing agent, the compound of bisphenol-type anaerosol was developed, which was successfully used in piston aviation engine oil.
The United States had an early aging problem in the 1970s. Under the condition of high temperature, high load, speed, easy to form colloid and sludge at low temperature, lubricating oil make its viscosity increases, affect the normal operation of the engine, and the reasonable solution is still using high thermal stability of dialkyl disulfide generation of zinc phosphate salt.
Triphenyl phosphite (antioxidant, stabilizer TPPi)
Packing method: net weight of 200KG/galvanized iron bucket (a small cabinet to hold 16 tons), 1000KG/IB (a small container with 18 tons) or 23 tons of it.
Port of shipment: Shanghai port
Price quotation validity: 15 days
Warehouse time: within 15 days (customs clearance)
Export rights: our own right to import and export.
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
The current situation of oil antioxidant. Several typical antioxidants are present. The antioxidant can significantly delay the oxidation rate of oil and prolong the service life of oil. For example, when the oil of the transformer is added with benzodiazepine or the anti-oxidant, it can extend the life span of oil products from 3 months to 1 year to more than 15 years. At present, its output is second only to pure dispersants. The classification of antioxidant products can be divided according to functional groups, and can be classified according to the mechanism of action and function.
Phenolic antioxidants are older and have been used in petroleum products since the early 1900s. The most commonly used is 2, 6-ditert-butyl, which is the main antioxidant in industrial oil in China. The use temperature of phenolic antioxidant is low, which is commonly used in general purpose machine oil, turbine oil, hydraulic oil and transformer oil. The general dosage is 0.1% ~ 0.5%. Because of the low temperature of the single-ring screen, a type of diester compound was developed, which can be used in internal combustion engine oil.
Aromatic amine type compound antioxidant use temperature is higher than phenolic type, for 120 ~ 150 ℃. It is easy to change the color of oil and precipitate, and it is very toxic. Therefore, it is restricted in industrial oil, mainly used in compressor oil.
Alkyl HuaEr aniline type antioxidants due to high temperature oxidation performance is good, it is mainly used for ester synthetic oil, as the jet turbine engine lubricating oil antioxidants, can also be used in the mineral base oil, modulation of APl quality grade internal combustion engine oil, such as SF, SG, SH, SJ, etc.
Phenolamine antioxidant is a kind of bifunctional group, which has the characteristics of phenolamine and amine antioxidant. It is different from aromatic amine type is not precipitation after oxidation, can be used for heavy duty industrial oil, which can withstand temperatures up to 149 ℃, but compared with bisphenol a, high temperature performance is a bit poor.
ZDDP is a kind of antioxidant containing sulfur and phosphorus. It has the function of corrosion resistance and anti-wear. It is a multi-effect additive. It has a history of more than 50 years, the use of temperature above 130 ℃, dosage of more also, mainly used in internal combustion engine oil, anti-wear hydraulic oil. At present, foreign oil series gasoline engine oil is mainly SH and SJ. Diesel engine oil is mainly CE and CF. The anti-oxygen and anti-corrosive agents used in the preparation of these oils are still dominated by ZDDP.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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