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Clean compound ester type high temperature chain oil and preparation method

A technology of high-temperature chains and complex esters, applied in the petroleum industry, lubricating compositions, additives, etc., can solve problems such as low application temperature, large evaporation loss, and poor lubricity, and achieve reduced use consumption, less coking, and high-temperature thermal stability Good results

Inactive Publication Date: 2005-10-26
上海纳克润滑技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyether-type high-temperature chain oil has good lubricating performance, but its applicable temperature is low, and it is generally used in the lubrication of heat-setting machine chains with a setting temperature below 180°C; pentaerythritol ester-type high-temperature chain oil is applicable for temperatures up to 250°C, Larger evaporation loss at high temperature; trimellitate type chain oil has ideal high temperature detergency, but has the defect of poor lubricity

Method used

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  • Clean compound ester type high temperature chain oil and preparation method
  • Clean compound ester type high temperature chain oil and preparation method

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Embodiment 1   Embodiment 2

[0023] Dipentaerythritol complex ester 65.3 73.9

[0024] Pyromellitic acid ester 30.0 20.0

[0025] Amine antioxidant 2.5 3.0

[0026] Triphenylphosphorothioate 2.0 3.0

[0027] Bisbenzotriazole 0.2 0.1

[0028] In Example 1: the kinematic viscosity of dipentaerythritol complex ester at 40°C is 650-800mm 2 / s; kinematic viscosity of pyromellitic acid ester at 40°C is 80-95mm 2 / s; the antioxidant is a mixture of alkylated diphenylamine and alkylated N-phenyl-α-naphthylamine.

[0029] The deployment process is as shown in the preparation process flow chart of the present invention:

[0030] (1) Heat and stir the amine antioxidant, triphenyl thiophosphate, bisbenzotriazole and pyromellitic acid ester to 90-100°C, and keep warm for 0.5-1 hour to completely dissolve the solid material;

[0031] (2) Add dipentaerythritol complex ester in turn, control the temperature at 70-80°C, and continue stirring for 1 hour;

[0032] (3) Cool down to below 50°C and filter with 500 mesh ...

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Abstract

The present invention discloses a clean compounded ester type high-temperature chain oil and its preparation method. Its composition includes (by wt%) 40-90% of pentaerythritol compounded ester, 10-50% of benzenetetracarboxylic acid ester, 1-5% of high-temperature antioxidant, 1-5% of extreme pressure / anti-scuff agent and 0.02-0.5% of corrosion-resisting agent. Besides, said invention also provides the concrete steps of its preparation method, and provides its application range.

Description

technical field [0001] The invention relates to a composition, a high-temperature chain oil and a blending method thereof, in particular to a low-evaporation and good-clean clean complex ester high-temperature chain oil suitable for lubricating chains of equipment such as heat setting machines, paint lines, and high-temperature ovens. Background technique [0002] At present, the known composition of chain oils used in heat setting machines in the printing and dyeing industry, paint baking lines and high-temperature ovens in other industries is mostly polyether type, pentaerythritol ester type or trimellitate type. Polyether-type high-temperature chain oil has good lubricating performance, but its applicable temperature is low, and it is generally used in the lubrication of heat-setting machine chains with a setting temperature below 180°C; pentaerythritol ester-type high-temperature chain oil is applicable for temperatures up to 250°C, The evaporation loss is large at high ...

Claims

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Application Information

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IPC IPC(8): C10M137/10
Inventor 叶进春刘中文
Owner 上海纳克润滑技术有限公司
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