Synthesized hydraulic oil and preparation method thereof

A technology for synthesizing hydraulic oil and synthetic ester base oil, which is applied in the petroleum industry, lubricating compositions, base materials, etc., and can solve problems that cannot satisfy hydraulic systems, hydraulic oil thermal oxidation stability, filtration performance, compatibility and wear resistance etc. to achieve the effects of high oil film strength, excellent deposition control and equipment cleanliness, and excellent high and low temperature performance

Active Publication Date: 2014-04-30
TEXAS PETROCHEM YANTAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Hydraulic oil is the working medium of the hydraulic system. The modern hydraulic system has the characteristics of small size, light weight, and compact structure. The hydraulic action is affected by the properties of the hydraulic oil. And wear resistance, etc. are poor, can no longer meet the needs of modern hydraulic systems

Method used

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  • Synthesized hydraulic oil and preparation method thereof
  • Synthesized hydraulic oil and preparation method thereof
  • Synthesized hydraulic oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: (in terms of 100 kilograms, the same below)

[0019]

[0020] The composite additive package contains 6.74% sulfur, 3.38% phosphorus and 3.88% zinc.

[0021] The preparation method of this synthetic hydraulic oil adopts the following steps:

[0022] (1) Pump the oil-soluble polyalkylene glycol and polyol ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 60°C to obtain a mixed oil A;

[0023] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue to mechanically stir for 2 hours at a constant temperature of 60°C to prepare mixed oil B;

[0024] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.2 MPa to obtain a clear and transparent synthetic hydraulic oil.

Embodiment 2

[0026]

[0027] The composite additive package contains 6.5% sulfur, 0.7% phosphorus and 3.2% nitrogen.

[0028] The preparation method of this synthetic hydraulic oil adopts the following steps:

[0029] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 55°C to obtain a mixed oil A;

[0030] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue to mechanically stir for 1.5 hours at a constant temperature of 55°C to prepare mixed oil B;

[0031] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.15 MPa to obtain clear and transparent synthetic hydraulic oil.

Embodiment 3

[0033]

[0034]

[0035] The composite additive package contains 7.5% sulfur, 3.7% phosphorus and 7.8% zinc.

[0036] The preparation method of this synthetic hydraulic oil adopts the following steps:

[0037] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 50°C to obtain a mixed oil A;

[0038] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue mechanical stirring for 1 hour at a constant temperature of 50°C to prepare mixed oil B;

[0039] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.1 MPa to obtain a clear and transparent synthetic hydraulic oil.

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Abstract

The invention relates to the field of synthesized oil and particularly relates to synthesized hydraulic oil and a preparation method thereof. The synthesized hydraulic oil is prepared from following components in percentage by weight: 1.45-6.0% of a composite additive pack, 60-90% of oil-soluble poly(alkylene diol) and the balance of synthesized ester basic oil. The synthesized hydraulic oil has the beneficial effects that the components are reasonable and have suitable viscosity and viscosity-temperature characteristics; the mechanical efficiency and the volume efficiency can be effectively balanced; the thermal oxidation stability is good; acidic substances and oil mud generated by oxidization in a use process can be effectively inhibited; the filtering performance is good and the rigorous demands of a hydraulic system with high precision, small gap and complicated control elements can be met; the requirements on liquid viscosity at a working temperature and a starting temperature of the hydraulic device can also be met; the synthesized hydraulic oil has good compatibility on metal and sealing materials of the hydraulic system, and has good performances including demulsification performance, air releasing performance, wear resistance and the like.

Description

(1) Technical field [0001] The invention relates to the field of synthetic oil, in particular to a synthetic hydraulic oil and a preparation method thereof. (2) Background technology [0002] Hydraulic oil is the working medium of the hydraulic system. The modern hydraulic system has the characteristics of small size, light weight, and compact structure. The hydraulic action is affected by the properties of the hydraulic oil. And wear resistance, etc. are poor, can no longer meet the needs of modern hydraulic systems. (3) Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the invention provides a synthetic hydraulic oil with reasonable components, good thermal oxidation stability, good filtration performance, good compatibility and good wear resistance and a preparation method thereof. [0004] The present invention is achieved through the following technical solutions: [0005] A synthetic hydraulic oil is made of the following...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M107/32C10M111/04C10N40/08C10N30/10C10N30/06
Inventor 王述申李晓丽
Owner TEXAS PETROCHEM YANTAI
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