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Water based detergent for oil dirty

A grease cleaning agent, water-based technology, applied in the field of cleaning agents, can solve problems such as the rust prevention of various metals in heavy grease, and achieve the effects of easy operation, less usage, and good removal ability.

Inactive Publication Date: 2007-07-25
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing relevant Chinese patent CN1743441A "High-permeability metal cleaning agent and its preparation" is mainly aimed at solving the antirust problem of ferrous metals for precision instruments. At present, none of the existing patents has solved the antirust problem of various metals that are difficult to clean with heavy oil stains, and now Existing technologies are generally prepared under conditions higher than normal temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Oleic Acid 3%

[0026] Monoethanolamine 10%

[0027] Surfactant: OP-10, JFC, 6501 6% each

[0028] Sodium metasilicate 5%

[0029] Sodium Carbonate 5%

[0030] Sodium fluorosilicate 2%

[0031] Defoamer 0.05%

[0032] water balance

Embodiment 2

[0034] Oleic Acid 6%

[0035] Diethanolamine 15%

[0036] Surfactant: 6% each of OP-10, 6501, and BX

[0037] Sodium metasilicate 10%

[0038] Sodium Carbonate 5%

[0039] Sodium Fluosilicate 2.5%

[0040] Defoamer 0.08%

[0041] water balance

[0042] The above-mentioned two embodiments are used for cleaning mechanical parts such as household range hoods, old machine tools and bearings, and the effect is good, and they are generally prepared as a 2% to 5% solution.

Embodiment 3

[0044] Oleic Acid 8%

[0045] Triethanolamine 20%

[0046] Surfactant: 10% each of 6501 BX

[0047] Sodium metasilicate 4%

[0048] Sodium Carbonate 10%

[0049] Sodium Fluosilicate 4%

[0050] Defoamer 0.1%

[0051] water balance

[0052] This example is used for the chemical cleaning of A-101 grease in the high-pressure air cooler of a hydrocracking unit in a certain oil refinery. After analysis, 80% of the grease samples are dark red polycyclic aromatic hydrocarbons with a carbon number of about 22 and a ring number greater than 5. They are insoluble in organic compounds. Solvents, strong acids and bases. The water-based grease cleaning agent formulated in Example 3 was used for cleaning, and the heat exchange effect was good after the device was in operation.

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PUM

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Abstract

This invention discloses a waterborne detergent for cleaning oil stains. The detergent is composed of: oleic acid 2-10%, ethanolamine 10-20%, surfactant 10-20%, sodium metasilicate 5-10%, sodium carbonate 5-10%, sodium fluosilicate 2-4%, defoamer 0.05-0.1%, and water. The detergent has good anti-rust performance on a variety of metals and alloys, and is suitable for cleaning oil stains on metals and alloys. The detergent has good effect on oil stains of machine tools, hardware, household range hoods, and especially dark red fused-ring aromatic hydrocarbon stains in oil-refinery apparatus.

Description

technical field [0001] The invention relates to a cleaning agent, especially a water-based metal cleaning agent suitable for cleaning oil stains on various metal surfaces. Background technique [0002] At present, industrial cleaning in my country still uses mixed hydrocarbons such as gasoline, kerosene and a small amount of water-based cleaning agents. Mixed hydrocarbon cleaning agents such as gasoline and kerosene not only waste a lot of energy and cause environmental pollution, but also the cleaning workers are easily poisoned, and fires are very easy to cause heavy economic losses and personal accidents. [0003] Using a water-based cleaning agent with a concentration of 3-5%, one ton of water-based cleaning agent can replace 20-30 tons of gasoline and kerosene. If half of the gasoline and kerosene mixed hydrocarbon cleaning agents are replaced by water-based cleaning agents, the annual supply gap of water-based cleaning agents is about 200,000 tons. [0004] The use o...

Claims

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Application Information

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IPC IPC(8): C11D3/37C11D1/66C11D3/20C11D3/08C11D3/30C11D3/10
Inventor 黄依敬
Owner JIANGSU UNIV OF SCI & TECH
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