Production technology of composite lithium base lubricating grease

A technology of base grease and production process, applied in the field of production process of complex lithium base grease, can solve problems such as the danger of energy consumption and operation, and achieve the effects of avoiding potential danger, reducing energy consumption and soap content, and reducing production intensity

Inactive Publication Date: 2012-02-22
无锡惠源高级润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of composite lithium base lubricating grease production process, this process has overcome the high energy consumption of existing complex lithium base grease high temperature production process, the deficiencies of dangerous operation, has shortened saponification composite time, reduced energy consumption, Improved productivity and operability

Method used

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  • Production technology of composite lithium base lubricating grease
  • Production technology of composite lithium base lubricating grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] At 1.6m 3 Into the pressure saponification kettle, add 400 kg of 100℃ kinematic viscosity 10mm 2 / s Mineral base oil, 75 kg of 12-hydroxystearic acid, 25 kg of sebacic acid, 23 kg of lithium hydroxide monohydrate, 70 kg of water, cover, then stir and raise, when the temperature reaches 150℃, the pressure is 0.5MPa , Constant temperature and pressure reaction for 90 minutes. Relieve the pressure to normal pressure, then stir and heat up to 150℃, add 100℃, the kinematic viscosity is 10mm 2 / s 550 kg of mineral base oil, continue to stir and heat to 215 ℃, constant temperature for 10 minutes. Transfer the composite soap liquid to the blending kettle, wash the kettle with 50 kg of base oil and transfer it to the blending kettle together, turn on the cooling water, under the pressure of 0.8~0.9MPa, stir and circulate shear for 90 minutes, and wait until the temperature drops to At 105°C, add 40 kg of the additives used in extreme pressure lithium complex grease, and continue ...

Embodiment 2-4

[0021] The process methods of Examples 2-4 are as in Example 1, and the specific material ratio and reaction parameters are shown in Table 2.

[0022] Table 2 Material ratio and reaction parameters of Examples 2-4

[0023]

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Abstract

The invention relates to production technology of composite lithium base lubricating grease, in particular includes following steps: (1) adding base oil, acid, alkali and water for saponification into a pressure saponification kettle, closing the kettle to be airtight, stirring and heating the base oil, acid, alkali and water to raise temperature, and conducting a saponification reaction under certain pressure and temperature; (2) after a constant temperature constant pressure reaction finishes, decompressing to normal pressure, adding part of remaining oil, continuing to raise the temperature to obtain composite soap oil, and transferring the soap oil to a mixing kettle; (3) cutting and cooling liquid materials in the mixing kettle in cycling mode, adding required additive agents, and continuing to cut, stir and mix the liquid materials in cycling mode; and (4) after cutting and mixing the liquid materials evenly, pumping an air releasing kettle to corresponding vacuum degree, homogenizing the materials through a homogenizer to release air to obtain products. The production technology shortens saponification composite time, improves production efficiency, reduces energy loss and soap content, is simple in operation, and avoids potential danger on operational workers caused by overflowing in normal pressure saponification.

Description

technical field [0001] The invention relates to the field of lubricants, in particular to a production process of lithium composite grease. Background technique [0002] Lithium complex grease has the advantages of good mechanical stability, high dropping point and high service temperature, and is widely used in industrial fields. It is currently one of the most used types of grease in the world. With the continuous development of my country's automobile, steel, textile, paper and other industries, higher and higher requirements are put forward for the high temperature performance of lubricating greases. It is difficult for ordinary lithium-based lubricating greases to meet the requirements. Therefore, the amount of lithium complex grease will increase rapidly. [0003] There are many patents at home and abroad on the composition and preparation methods of lithium-composite grease, such as: US 2681242, US4897210, WO98 / 11180; Two or more acids are used to react with lithium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10M177/00C10N50/10
Inventor 冯克权缪冬琴
Owner 无锡惠源高级润滑油有限公司
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