CN115110094A - Method for treating metal surface of dipropylene glycol after fire - Google Patents
Method for treating metal surface of dipropylene glycol after fire Download PDFInfo
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- CN115110094A CN115110094A CN202110291993.2A CN202110291993A CN115110094A CN 115110094 A CN115110094 A CN 115110094A CN 202110291993 A CN202110291993 A CN 202110291993A CN 115110094 A CN115110094 A CN 115110094A
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- dipropylene glycol
- metal surface
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
- C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of dipropylene glycol, and discloses a method for treating a metal surface of dipropylene glycol after a fire, which comprises the following steps: the method comprises the following steps: preparing raw materials; step two: mixing solvents; step three: soaking the metal; step four: and (4) cleaning the metal. Preferably, the step one comprises the following specific steps: 15-25 parts of dipropylene glycol; 25-40 parts of methyl pyrrolidone; 5-8 parts of ethanolamine; 20-30 parts of ethyl acetate; 5-10 parts of fatty acid ester; 15-25 parts of dimethyl ketone; 0.2 part of fruit essential oil; 4-10 parts of a builder; 7-18 parts of a corrosion inhibitor; 39-49 parts of water; the parts are parts by mass. According to the method for treating the metal surface of the dipropylene glycol after fire, the dipropylene glycol solvent is simple in process and convenient to prepare in the preparation process, the preparation efficiency is improved, the treatment of the metal surface is facilitated, the oxidation of the metal is prevented, and the treatment efficiency is improved.
Description
Technical Field
The invention relates to the technical field of dipropylene glycol, in particular to a method for treating the metal surface of dipropylene glycol after fire.
Background
Along with the development of economy, the industrialization level is improved, the safety production problem is obvious, the fire accidents are increased sharply, globally known enterprises are damaged by fire, almost all machine equipment in a plant can be polluted by smoke dust after the fire happens, a large amount of chloride ions can be generated by part of the smoke dust after the fire happens due to the burning of special materials such as cables, control panels, plastics and the like in the fire process, in addition, in the fire extinguishing process of a fire department, the equipment can be prevented from being corroded rapidly due to the overflow of internal acid-base liquid, the volatilization of the acid-base liquid is intensified along with the high-temperature environment after the fire, the acid-base gas, the chloride ions and the like are mixed in the smoke dust, the equipment in the plant can be corroded rapidly in a short time, and if the smoke dust cannot be removed in a short time, the equipment can be scrapped and cannot be saved, so that huge loss is caused.
However, the existing method for treating the metal surface of dipropylene glycol after a fire disaster has certain disadvantages in use, and in the metal treatment process, the process is complicated, the dipropylene glycol is inconvenient to prepare, the preparation efficiency is reduced, the metal treatment is inconvenient, and the treatment efficiency is reduced in the preparation process of dipropylene glycol, so that the method for treating the metal surface of dipropylene glycol after the fire disaster is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for treating the metal surface of dipropylene glycol after fire, and the problem that the dipropylene glycol solvent is simple in process, convenient to prepare, and beneficial to the treatment of the metal surface and the improvement of the treatment efficiency in the preparation process is solved.
(II) technical scheme
In order to realize the purposes of simple process, convenient preparation, preparation efficiency improvement, metal surface treatment facilitation and treatment efficiency improvement in the preparation process of the dipropylene glycol solvent, the invention provides the following technical scheme: a method for the metal surface treatment of dipropylene glycol after a fire, said production method comprising the steps of:
the method comprises the following steps: preparing raw materials;
step two: mixing solvents;
step three: soaking the metal;
step four: and (4) cleaning the metal.
Preferably, the step one comprises the following specific steps:
15-25 parts of dipropylene glycol;
25-40 parts of methyl pyrrolidone;
5-8 parts of ethanolamine;
20-30 parts of ethyl acetate;
5-10 parts of fatty acid ester;
15-25 parts of dimethyl ketone;
0.2 part of fruit essential oil;
4-10 parts of a builder;
7-18 parts of a corrosion inhibitor;
39-49 parts of water;
the parts are parts by mass.
Preferably, the second step comprises the following specific steps:
firstly, according to the weight of each solvent in the step one, the process conditions of mixing and stirring the raw materials of the reagent are that the stirring temperature is 20 ℃, and the stirring speed is 180 r/min;
② stirring for 15 min.
Preferably, the third step comprises the following specific steps:
putting metal into a container filled with a mixed solvent;
② soaking the metal for 180 min to make the stains on the surface of the metal react.
Preferably, the fourth step comprises the following specific steps:
firstly, cleaning a metal workpiece by adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
cleaning the metal workpiece by sequentially adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
and thirdly, after the metal workpiece is cleaned by adopting a water system cleaning machine, the step of drying the workpiece is also included.
Preferably, the step five comprises the following specific steps:
firstly, performing pre-oxidation treatment;
drying at 140 ℃ and 150 ℃ for 30-40 minutes;
the temperature of the pre-oxidation treatment is 350 ℃ and 380 ℃;
and the time of the pre-oxidation treatment is 30-40 minutes.
(III) advantageous effects
Compared with the prior art, the invention provides a method for treating the metal surface of dipropylene glycol after fire, which has the following beneficial effects:
the solvent used in the invention is 15-25 parts of dipropylene glycol; 25-40 parts of methyl pyrrolidone; 5-8 parts of ethanolamine; 20-30 parts of ethyl acetate; 5-10 parts of fatty acid ester; 15-25 parts of dimethyl ketone; 0.2 part of fruit essential oil; 4-10 parts of a builder; 7-18 parts of a corrosion inhibitor; 39-49 parts of water; the parts are parts by weight, and the components of the solvents enable the stirring temperature of the raw materials of the mixed stirring reagent to be 20 ℃ and the stirring speed to be 180 r/min; stirring for 15min, and placing the metal in a container filled with the mixed solvent; soaking the metal for 180 min to react stains on the surface of the metal, and cleaning the metal workpiece by adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine; cleaning the metal workpiece by sequentially adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine; after the metal workpiece is cleaned by a water system cleaning machine, the method also comprises the step of drying the workpiece, and finally, pre-oxidation treatment is carried out; the drying temperature is 140 ℃ and 150 ℃, and the drying time is 30-40 minutes; the temperature of the pre-oxidation treatment is 350-380 ℃; the time of the pre-oxidation treatment is 30-40 minutes, and the stain on the metal surface is effectively treated.
Drawings
Fig. 1 is a flow chart of a method for metal surface treatment of dipropylene glycol according to the present invention after a fire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for metal surface treatment of dipropylene glycol after a fire includes the steps of:
the method comprises the following steps: preparing raw materials;
step two: mixing solvents;
step three: soaking the metal;
step four: and (4) cleaning the metal.
The first step comprises the following specific steps:
15-25 parts of dipropylene glycol;
25-40 parts of methyl pyrrolidone;
5-8 parts of ethanolamine;
20-30 parts of ethyl acetate;
5-10 parts of fatty acid ester;
15-25 parts of dimethyl ketone;
0.2 part of fruit essential oil;
4-10 parts of a builder;
7-18 parts of a corrosion inhibitor;
39-49 parts of water;
the parts are parts by mass.
The second step comprises the following specific steps:
firstly, according to the weight of each solvent in the step one, the process conditions of mixing and stirring the raw materials of the reagent are that the stirring temperature is 20 ℃, and the stirring speed is 180 r/min;
② stirring for 15 min.
The third step comprises the following specific steps:
putting metal into a container filled with a mixed solvent;
② soaking the metal for 180 min to make stains on the surface of the metal react.
The fourth step comprises the following specific steps:
firstly, cleaning a metal workpiece by adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
cleaning the metal workpiece by sequentially adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
and thirdly, after the metal workpiece is cleaned by adopting a water system cleaning machine, the step of drying the workpiece is also included.
The fifth step comprises the following specific steps:
firstly, performing pre-oxidation treatment;
drying at 140 ℃ and 150 ℃ for 30-40 minutes;
the temperature of the pre-oxidation treatment is 350 ℃ and 380 ℃;
and the time of the pre-oxidation treatment is 30 to 40 minutes.
In conclusion, the used solvent is prepared into 15-25 parts of dipropylene glycol; 25-40 parts of methyl pyrrolidone; 5-8 parts of ethanolamine; 20-30 parts of ethyl acetate; 5-10 parts of fatty acid ester; 15-25 parts of dimethyl ketone; 0.2 part of fruit essential oil; 4-10 parts of a builder; 7-18 parts of a corrosion inhibitor; 39-49 parts of water; the parts are parts by weight, and the stirring temperature of the mixed and stirred reagent raw materials is 20 ℃ and the stirring speed is 180r/min due to the weight of each solvent; stirring for 15min, and placing the metal in a container filled with the mixed solvent; soaking the metal for 180 min to react stains on the surface of the metal, and cleaning the metal workpiece by adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine; cleaning the metal workpiece by sequentially adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine; after the metal workpiece is cleaned by a water system cleaning machine, the method also comprises the step of drying the workpiece, and finally, pre-oxidation treatment is carried out; the drying temperature is 140 ℃ and 150 ℃, and the drying time is 30-40 minutes; the temperature of the pre-oxidation treatment is 350-380 ℃; the time of the pre-oxidation treatment is 30-40 minutes, so that the stain on the metal surface is effectively treated, and the use efficiency of the method is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for the metal surface treatment of dipropylene glycol after a fire, characterized in that the production method comprises the steps of:
the method comprises the following steps: preparing raw materials;
step two: mixing solvents;
step three: soaking the metal;
step four: cleaning the metal;
step four: and (4) carrying out metal pre-oxidation treatment.
2. The method for metal surface treatment of dipropylene glycol after fire according to claim 1, wherein: the first step comprises the following specific steps:
15-25 parts of dipropylene glycol;
25-40 parts of methyl pyrrolidone;
5-8 parts of ethanolamine;
20-30 parts of ethyl acetate;
5-10 parts of fatty acid ester;
15-25 parts of dimethyl ketone;
0.2 part of fruit essential oil;
4-10 parts of a builder;
7-18 parts of a corrosion inhibitor;
39-49 parts of water;
the parts are parts by mass.
3. The method for metal surface treatment of dipropylene glycol after fire according to claim 1, wherein: the second step comprises the following specific steps:
firstly, according to the weight of each solvent in the step one, the technological conditions for mixing and stirring the reagent raw materials are that the stirring temperature is 20 ℃, and the stirring speed is 180 r/min;
② stirring for 15 min.
4. The method for metal surface treatment of dipropylene glycol after fire according to claim 1, wherein: the third step comprises the following specific steps:
putting metal into a container filled with a mixed solvent;
② soaking the metal for 180 min to make the stains on the surface of the metal react.
5. The method for metal surface treatment of dipropylene glycol after a fire according to claim 1, wherein: the fourth step comprises the following specific steps:
firstly, cleaning a metal workpiece by adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
cleaning the metal workpiece by sequentially adopting a water system cleaning machine and a hydrocarbon solvent cleaning machine;
and thirdly, after the metal workpiece is cleaned by adopting a water system cleaning machine, the step of drying the workpiece is also included.
6. The method for metal surface treatment of dipropylene glycol after fire according to claim 1, wherein: the fifth step comprises the following specific steps:
firstly, carrying out pre-oxidation treatment;
drying at 140 ℃ and 150 ℃ for 30-40 minutes;
the temperature of the pre-oxidation treatment is 350 ℃ and 380 ℃;
and the time of the pre-oxidation treatment is 30-40 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291993.2A CN115110094A (en) | 2021-03-18 | 2021-03-18 | Method for treating metal surface of dipropylene glycol after fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291993.2A CN115110094A (en) | 2021-03-18 | 2021-03-18 | Method for treating metal surface of dipropylene glycol after fire |
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| Publication Number | Publication Date |
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| CN115110094A true CN115110094A (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110291993.2A Withdrawn CN115110094A (en) | 2021-03-18 | 2021-03-18 | Method for treating metal surface of dipropylene glycol after fire |
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Citations (11)
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| US5102573A (en) * | 1987-04-10 | 1992-04-07 | Colgate Palmolive Co. | Detergent composition |
| US5585341A (en) * | 1995-02-27 | 1996-12-17 | Buckeye International, Inc. | Cleaner/degreaser concentrate compositions |
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| KR20140126825A (en) * | 2013-04-22 | 2014-11-03 | 한국생산기술연구원 | Aquous detergent composition and cleaning method using the composition |
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| CN108941987A (en) * | 2018-06-28 | 2018-12-07 | 南京中高知识产权股份有限公司 | A kind of metalwork method for treating surface layer for welding |
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| CN111630633A (en) * | 2018-01-15 | 2020-09-04 | 中央硝子株式会社 | Chemical solution for forming water-repellent protective film and method for surface treatment of wafer |
-
2021
- 2021-03-18 CN CN202110291993.2A patent/CN115110094A/en not_active Withdrawn
Patent Citations (11)
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|---|---|---|---|---|
| US5102573A (en) * | 1987-04-10 | 1992-04-07 | Colgate Palmolive Co. | Detergent composition |
| US5585341A (en) * | 1995-02-27 | 1996-12-17 | Buckeye International, Inc. | Cleaner/degreaser concentrate compositions |
| CN102177232A (en) * | 2008-08-08 | 2011-09-07 | 荷兰联合利华有限公司 | Microcapsules in surfactant-containing compositions |
| KR20140126825A (en) * | 2013-04-22 | 2014-11-03 | 한국생산기술연구원 | Aquous detergent composition and cleaning method using the composition |
| CN104313614A (en) * | 2014-10-17 | 2015-01-28 | 景丽 | Low-foam detergent and preparation method thereof |
| CN104629939A (en) * | 2015-03-05 | 2015-05-20 | 孟庆平 | Smoke dust detergent after fire disaster and preparation method for smoke dust detergent |
| CN105969543A (en) * | 2016-05-17 | 2016-09-28 | 江苏筑磊电子科技有限公司 | Smoke dust cleaning agent after fire hazards |
| CN108166012A (en) * | 2017-12-29 | 2018-06-15 | 江苏丰东热技术有限公司 | The metal works that the cleaning of metal works and cleaning obtain |
| CN111630633A (en) * | 2018-01-15 | 2020-09-04 | 中央硝子株式会社 | Chemical solution for forming water-repellent protective film and method for surface treatment of wafer |
| CN108941987A (en) * | 2018-06-28 | 2018-12-07 | 南京中高知识产权股份有限公司 | A kind of metalwork method for treating surface layer for welding |
| CN109136899A (en) * | 2018-09-29 | 2019-01-04 | 东莞市史雷帝三维数控科技有限公司 | A kind of corrosion resistant processing method in metal surface |
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| 洪仲苓: "《化工有机原料深加工》", 化学工业出版社, pages: 336 * |
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Application publication date: 20220927 |
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