Environmental protection and safety type hydrocarbon cleaning agent

A hydrocarbon cleaning agent, safe technology, applied in the field of environment-friendly and safe hydrocarbon cleaning agent, can solve problems such as shock, corrosion, and environmental pollution, and achieve strong cleaning ability and the effect of thoroughly removing oil stains

Inactive Publication Date: 2009-12-02
华阳新兴科技(天津)集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it will also bring many harms to people, objects to be cleaned and the environment in use: 1. Toxicity problem: the above-mentioned solvents are very toxic except for F-113 and 1,1,1-trichloroethane. Liver, kidney, and blood poisoning through skin, respiratory contact or accidental ingestion, dizziness and vomiting in mild cases, shock and even death in severe cases; and some solvents can also produce extremely toxic phosgene under sunlight exposure, which has carcinogenic effects
2. Corrosion problem: Most halogenated hydrocarbon cleaning agents contain chlorine atoms, which will decompose under certain conditions to produce hydrochloric acid, which will corrode equipment and metal workpieces; and most chlorinated hydrocarbon solvents will dissolve, swell, and Deformation or embrittlement, which limits the range of cleaning
3. Evaporation loss: All are volatile liquids with low boiling point (generally at 40-80°C). About 40% of the cleaning agent is lost due to evaporation during transportation, storage and use.
4. Environmental pollution problems: chlorinated hydrocarbon solvents cannot be degraded naturally, and will cause serious pollution to air, water and soil after discharge
5. Destruction of the ozone layer: The volatile gases of F-113, carbon tetrachloride and 1,1,1-trichloroethane stay in the atmosphere, rise with the air flow, and decompose in the stratosphere by ultraviolet radiation to produce chlorine atoms, chlorine atoms As a catalyst, it can cause long-term damage to the ozone layer, reduce the ozone layer's ability to block ultraviolet rays, and cause harm to people, animals, and plants on the earth.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An environment-friendly and safe hydrocarbon cleaning agent, its constituents and weight percentages are respectively:

[0021] C 10 h 22 : 95.00%; C 11 h 24 : 5.00%.

[0022] The above two components are uniformly mixed to form a finished product.

[0023] Finished product appearance: colorless transparent liquid; odor: slight solvent smell; distillation range: 152-190°C; specific gravity (25°C): 0.733g / ml; KB value: 29; flash point (closed): 48°C; explosion limit: 0.6-8.0vol%; Hazardous chemical grade: Class 3.3, high flash point, flammable liquid; Acute oral toxicity (LD50mg / Kg): >15000; Ozone destruction coefficient: 0.00; Main cleaning objects: on machines or electronic circuits Cutting oil, lubricating oil, anti-rust oil, stamping oil, welding stains, dust, etc. on the plate. Features: It is suitable for all kinds of cleaning and drying equipment and manual cleaning, and can be used for distillation and regeneration.

Embodiment 2

[0025] An environment-friendly and safe hydrocarbon cleaning agent, its constituents and weight percentages are respectively:

[0026] C 10 h 22 : 50.00%; C 11 h 24 : 35.00%; C 12 h 26 : 15.00%.

[0027] The above three components can be mixed uniformly to form a finished product.

[0028] Appearance of finished product: colorless transparent liquid; odor: odorless; distillation range: 178-196°C; specific gravity (25°C): 0.738g / ml; KB value: 29; flash point (closed): 54°C; explosion limit: 0.6- 8.0vol%; Hazardous chemical grade: Class 3.3, high flash point, flammable liquid; Acute oral toxicity (LD50mg / Kg): >15000; Ozone destruction coefficient: 0.00; Main cleaning objects: Cuttings contained on the surface of precision parts Oil, lubricating oil, stamping oil, drawing oil, etc. Features: Suitable for all kinds of washing and drying machines, highly refined, odorless, good drying and distillation regeneration.

Embodiment 3

[0030] An environment-friendly and safe hydrocarbon cleaning agent, its constituents and weight percentages are respectively:

[0031] C 10 h 22 : 50.00%; C 11 h 24 : 5.00%; C 8 h 18 : 35.00%; C 9 h 20 : 10.00%.

[0032] The above four components can be mixed uniformly to form a finished product.

[0033] Appearance of finished product: colorless transparent liquid; odor: slight solvent smell; distillation range: 140-160°C; specific gravity (25°C): 0.719g / ml; KB value: 29; flash point (closed): 31°C; explosion limit: 0.6-8.0vol%; Hazardous chemical grade: Class 3.3, high flash point, flammable liquid; Acute oral toxicity (LD50mg / Kg): >15000; Ozone destruction coefficient: 0.00; Main cleaning objects: Attached to some precision parts Lubricating oil, anti-rust oil, stamping oil, dust and white oil on bulletproof fibers, etc. Features: Suitable for all kinds of washing and drying machines, good drying and distillation regeneration.

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Abstract

The invention relates to an environmental protection and safety type hydrocarbon cleaning agent belonging to the field of chemical cleaning agents. The hydrocarbon cleaning agent comprises the following components by weight percent: 50-95 percent of C10H22 and 5-35 percent of C11H24. The hydrocarbon cleaning agent has extremely strong cleaning capacity, can thoroughly clean various sewages such as oil stains, water, dust, and the like, can be completely volatilized without any residues, has an ozone rupture coefficient of 0.00 and no harm to the human body and is the optimal choice for substituting for the Freon and halogenated hydrocarbon products having extremely great harm to the environment and human beings.

Description

technical field [0001] The invention relates to the field of chemical cleaning agents, in particular to an environment-friendly and safe hydrocarbon cleaning agent. Background technique [0002] The most used halogenated hydrocarbon cleaning agents in the field of industrial cleaning are dichloromethane, chloroform (chloroform), 1,1,1-trichloroethane, trichloroethylene, tetrachloroethylene, carbon tetrachloride, trifluoro Trichloroethane (F-113), etc., are widely used because of their advantages of strong cleaning ability, non-combustibility, fast drying, and easy distillation and regeneration. But it will also bring many harms to people, objects to be cleaned and the environment in use: 1. Toxicity problem: the above-mentioned solvents are very toxic except for F-113 and 1,1,1-trichloroethane. Liver, kidney, and blood poisoning through skin, respiratory contact or accidental ingestion, dizziness and vomiting in mild cases, shock and even death in severe cases; and some sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/24
Inventor 王旭明李大庆
Owner 华阳新兴科技(天津)集团有限公司
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