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Mono (terephthalate)octanol ester calcium salt clearing agent and synthetic method thereof

A technology of terephthalic acid and detergent, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor kinematic viscosity, insufficient compatibility of ester lubricating oil base oil, low total base number, etc., and achieve good Effects of neutralizing acid, easy large-scale production, and high degree of biodegradation

Active Publication Date: 2014-11-05
东营市广利临港产业园有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of environmental protection of existing lubricating oil detergent varieties, insufficient compatibility with ester lubricating oil base oil, low total base number, poor kinematic viscosity at a certain temperature, etc., the present invention provides a degradable ester Lubricant-like detergent and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Monolauryl terephthalate calcium salt detergent, its raw material composition and mass ratio are:

[0022] Monolauryl terephthalate 30g, diluent oil 30g, calcium hydroxide 150g, calcium chloride 3g, solvent 150g, methanol 11g, water 6g, carbon dioxide 8g.

[0023] The purity of the monododecyl terephthalate is 80%; the diluent oil is HVI150; and the solvent is xylene.

[0024] A preparation method of lubricating oil detergent, the steps comprising:

[0025] A. Add the prescribed amount of monododecyl terephthalate, diluent oil, solvent, methanol and calcium chloride into the reactor, mix and stir, then add the formulated amount of calcium hydroxide, and neutralize at 40°C for 1.5. 0 hours;

[0026] B. Add the prescribed amount of water, raise the temperature to 60°C, feed the prescribed amount of carbon dioxide gas, react for 0.5 hours, and the ventilation rate is 80mL / min;

[0027] C. Centrifuge to remove slag, and then distill under reduced pressure to remove the s...

Embodiment 2

[0030] Monolauryl terephthalate calcium salt detergent, its raw material composition and mass ratio are:

[0031] Monolauryl terephthalate 30g, diluent oil 30g, calcium hydroxide 150g, calcium chloride 3g, solvent 150g, methanol 11g, water 6g, carbon dioxide 8g.

[0032] The purity of the monododecyl terephthalate is 80%; the diluent oil is trimethylolpropane trioctyl; and the solvent is xylene.

[0033] A preparation method of lubricating oil detergent, the steps comprising:

[0034] A. Add the prescribed amount of monododecyl terephthalate, diluent oil, solvent, methanol and calcium chloride into the reactor, mix and stir, then add the formulated amount of calcium hydroxide, and neutralize at 40°C for 1.5. 0 hours;

[0035] B. Add the prescribed amount of water, raise the temperature to 60°C, feed the prescribed amount of carbon dioxide gas, react for 0.5 hours, and the ventilation rate is 80mL / min;

[0036] C. Centrifuge to remove slag, and then distill under reduced pre...

Embodiment 3

[0039] Monolauryl terephthalate calcium salt detergent, its raw material composition and mass ratio are:

[0040] Monolauryl terephthalate 40g, diluent oil 28g, calcium hydroxide 100g, calcium chloride 5g, solvent 180g, methanol 11g, water 7g, carbon dioxide 9g.

[0041] The purity of the monododecyl terephthalate is 90%; the diluent oil is trimethylolpropane octanoate; and the solvent is toluene.

[0042] A preparation method of lubricating oil detergent, the steps comprising:

[0043] A. Add the formula amount of monododecyl terephthalate, diluent oil, solvent, methanol and calcium chloride into a three-necked flask equipped with a stirring and reflux condenser, mix and stir and heat up to 65°C, then add the formula amount Calcium hydroxide, neutralized for 1.5 hours;

[0044] B. Add the prescribed amount of water, heat up to 70°C, feed the prescribed amount of carbon dioxide gas, react for 1.5 hours, and the ventilation rate is 75mL / min;

[0045] C, filter to remove slag...

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Abstract

The invention discloses a lubricating oil clearing agent and a preparation method, the clearing agent and comprises the following raw materials by mass ratio: 1-4 parts of mono(terephthalate)alcohol ester-12, 1-3 parts of cutback oil, 7-15 parts of calcium hydrate, 0.15-0.5 parts of calcium chloride, 12-30 parts of solvent, 0.15-1.5 parts of methanol, 0.2-0.8 parts of water and 0.2-1 part of carbon dioxide. A preparation method comprises the steps of high alkalinity reaction and neutralization reaction. The lubricating oil clearing agent has good clean dispersibility and extremely strong corrosive acid neutralization capability, calcium carbonate particles in the lubricating oil clearing agent are uniformly distributed; in the whole reaction process, the preparation and treatment processes are simple, a high temperature processing technology is not required, the synthetic method is easily realized, most raw materials can be regenerated and have high biodegradability, and the clearing agent and synthetic method accord with green environmental protection requirement.

Description

technical field [0001] The invention belongs to the field of lubricating oil additives, and in particular relates to an environment-friendly ester lubricating oil detergent and a preparation method thereof. Background technique [0002] In order to reduce wear, lubricating oil is a necessary substance for modern machinery and equipment. However, during the use of internal combustion engine lubricating oil, due to high-temperature oxidation and other reasons, the lubricating oil will undergo self-oxidative degradation and produce acidic substances. Therefore, a certain amount of alkaline detergent is usually added to the internal combustion engine lubricating oil to neutralize the acidic substances produced during the use of the lubricating oil. The development of detergents started from only a few neutral salt varieties to the current sulfonates, alkylphenols, sulfurized alkylphenates, naphthenates, alkyl salicylates, oleates, etc. Highly alkaline varieties. [0003] CN10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/02C10M129/76C10M129/68C10N30/04
Inventor 王永垒李海云方红霞
Owner 东营市广利临港产业园有限公司
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