CN111690942A - Phosphorus-free degreasing agent and preparation method thereof - Google Patents
Phosphorus-free degreasing agent and preparation method thereof Download PDFInfo
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- CN111690942A CN111690942A CN202010662487.5A CN202010662487A CN111690942A CN 111690942 A CN111690942 A CN 111690942A CN 202010662487 A CN202010662487 A CN 202010662487A CN 111690942 A CN111690942 A CN 111690942A
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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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract
The invention relates to a phosphorus-free degreasing agent and a preparation method thereof, belonging to the technical field of surface treatment of metal materials. The phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight: 5-20% of sodium carbonate, 5-20% of sodium hydroxide, 2-8% of sodium citrate, 2-10% of sodium gluconate, 1-5% of 12-15 carbon isomeric alcohol ethoxylate, 0.5-2% of polyol sucrose ester, 0.5-2% of fatty acid sorbitan emulsifier and the balance of water. The degreasing agent provided by the invention has the advantages of strong permeability, short degreasing time and high degreasing rate, and can quickly and effectively remove oil stains on the surface of metal at room temperature; the invention adopts a compounding technology, organically combines various components, can effectively reduce the adhesive force of the reagent on metal, and is easy to clean; the raw materials adopted by the invention do not contain phosphorus element, and the invention has the advantages of no toxicity, environmental protection, small volatility, small environmental pollution, safe and convenient use and low production cost.
Description
Technical Field
The invention relates to a preparation method of a degreasing agent, in particular to a phosphorus-free degreasing agent and a preparation method thereof, belonging to the technical field of surface treatment of metal materials.
Background
The steel-rolled galvanized plate has better corrosion resistance, is widely applied to the industries of automobiles, machinery, household appliances and furniture more and more, and because the surface of a hot-rolled coiled plate has a mixture of residual grease after rolling, iron powder and the like, the mixture is very harmful to deep processing of a coating layer of the hot-rolled coiled plate, the mixture must be removed through a degreasing process, otherwise, the quality cannot be guaranteed. Therefore, in order to improve the yield and the quality of products, reduce the iron content in the treatment bath solution and the consumption and the waste of the products, the degreasing treatment before coating is particularly critical.
The degreasing agent for the hot-dip steel plate and the cold-rolled steel plate at present has the defects of poor corrosion resistance and rust resistance, bubble generation, harmful phosphorus element content and the like, has higher production cost and does not have market competitiveness.
Disclosure of Invention
The invention aims to provide a phosphorus-free degreasing agent to solve the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
5 to 20 percent of sodium carbonate,
5 to 20 percent of sodium hydroxide,
2 to 8 percent of sodium citrate,
2 to 10 percent of sodium gluconate,
1-5% of 12-15 carbon isomeric alcohol ethoxylate,
0.5 to 2 percent of polyol sucrose ester,
0.5 to 2 percent of fatty acid sorbitan emulsifier,
the balance being water.
In the formula, sodium carbonate and sodium hydroxide are used for cleaning oil stains on the surface of a workpiece, and are powdery, so that the sodium carbonate and the sodium hydroxide need to be mixed in advance to be changed into alkaline liquid; the sodium citrate has a complexing effect, the sodium gluconate is used for complexing to enable the product to be uniform and clear, and the 12-15-carbon isomeric alcohol ethoxylate is used for decomposing oil stains on the surface of a workpiece; the polyol sucrose ester is suitable for the emulsification of various oil stains and is convenient to dissolve in water; the fatty acid sorbitan is generally used as an emulsifier conventionally, and is mixed with the polyol sucrose ester in the formula for use, so that the effect is good, and the subsequent wastewater treatment is facilitated.
Preferably, the phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
8 to 18 percent of sodium carbonate,
8 to 14 percent of sodium hydroxide,
3 to 7 percent of sodium citrate,
2 to 8 percent of sodium gluconate,
2-4% of 12-15 carbon isomeric alcohol ethoxylate,
0.5 to 2 percent of polyol sucrose ester,
0.5 to 2 percent of fatty acid sorbitan emulsifier,
the balance being water.
Preferably, the phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
18 percent of sodium carbonate,
12 percent of sodium hydroxide,
5 percent of sodium citrate,
5 percent of sodium gluconate,
3% of 12-15 carbon isomeric alcohol ethoxylate,
2 percent of polyhydric alcohol sucrose ester,
2 percent of fatty acid sorbitan emulsifier,
the balance being water.
Preferably, the polyol sucrose ester is an HLB (5-13) O/W emulsifier.
The preparation method of the phosphorus-free degreasing agent comprises the following steps:
firstly, weighing raw materials of each component according to the formula amount,
secondly, dispersing sodium carbonate and sodium hydroxide in water accounting for 40 +/-5% of the total amount, then sequentially adding sodium citrate, sodium gluconate, 12-15 carbon isomeric alcohol ethoxylate, polyol sucrose ester, fatty acid sorbitan emulsifier and the balance of water, stirring uniformly until complete decomposition, and standing to obtain the product.
Compared with the prior art, the invention has the advantages that:
1. the degreasing agent provided by the invention has the advantages of strong permeability, short degreasing time and high degreasing rate, and can quickly and effectively remove oil stains on the surface of metal at room temperature;
2. the invention adopts a compounding technology, organically combines various components, can effectively reduce the adhesive force of the reagent on metal, and is easy to clean;
3. the raw materials adopted by the invention do not contain phosphorus element, and the invention has the advantages of no toxicity, environmental protection, small volatility, small environmental pollution, safe and convenient use and low production cost;
4. the weight preparation method is simple, safe in preparation and low in labor intensity.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified.
The reagents used in the following examples, unless otherwise specified, were purchased from conventional biochemical reagent stores. The quantitative data in the following examples were set up in triplicate and the results averaged.
12-15 carbon isomeric alcohol ethoxylates, HLB (5-13) O/W emulsifier and fatty acid sorbitan emulsifier are all commercially available products.
Example 1
A preparation method of a phosphorus-free degreasing agent comprises the following steps:
weighing the raw materials of each component according to the formula, wherein the weight percentage of each raw material is as follows:
5 percent of sodium carbonate,
5 percent of sodium hydroxide,
2 percent of sodium citrate,
2 percent of sodium gluconate,
1% of 12-15 carbon isomeric alcohol ethoxylate,
0.5 percent of HLB (5-13) O/W emulsifier,
0.5 percent of fatty acid sorbitan emulsifier,
the balance of water;
secondly, dispersing sodium carbonate and sodium hydroxide in water accounting for 40% of the total amount, then sequentially adding sodium citrate, sodium gluconate, 12-15 carbon isomeric alcohol ethoxylate, HLB (5-13) O/W emulsifier, fatty acid sorbitan emulsifier and the balance of water, stirring uniformly until complete decomposition, and standing to obtain the product.
Example 2
The phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
10 percent of sodium carbonate,
10 percent of sodium hydroxide,
4 percent of sodium citrate,
5 percent of sodium gluconate,
3% of 12-15 carbon isomeric alcohol ethoxylate,
HLB (5-13) O/W emulsifier 1.5%,
1.5 percent of fatty acid sorbitan emulsifier,
the balance being water.
The preparation method of the phosphorus-free degreasing agent in this example is the same as that in example 1.
Example 3
The phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
15 percent of sodium carbonate,
12 percent of sodium hydroxide,
6 percent of sodium citrate,
7 percent of sodium gluconate,
3% of 12-15 carbon isomeric alcohol ethoxylate,
HLB (5-13) O/W emulsifier 2%,
2 percent of fatty acid sorbitan emulsifier,
the balance being water.
The preparation method of the phosphorus-free degreasing agent in this example is the same as that in example 1.
Example 4
The phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
18 percent of sodium carbonate,
12 percent of sodium hydroxide,
5 percent of sodium citrate,
5 percent of sodium gluconate,
3% of 12-15 carbon isomeric alcohol ethoxylate,
HLB (5-13) O/W emulsifier 2%,
2 percent of fatty acid sorbitan emulsifier,
the balance being water.
The preparation method of the phosphorus-free degreasing agent in this example is the same as that in example 1.
Degreasing agent performance test
The performance test was performed simultaneously with examples 1 to 4 provided by the present invention using a commercially available degreasing agent (phosphorus-containing degreasing agent) as a comparative example, and the process of the performance test of the degreasing agent was as follows:
1. BLC cold-rolled steel plate SPCC, cut it into 4 pieces of 7mm 15mm of sample slab, the cold-rolled steel plate of the thickness 1.2 mm;
2. after recording the initial weight G1 of each sample plate, four sample plates were dipped into lubricating oil, after standing for two minutes, the oil pick-up weight G2 of the sample plates in the oil immersion was weighed, the oil pick-up amount R (R = G2-G1) of the sample plates was weighed by subtraction, the four sample plates were completely immersed in the degreasing agents of examples 1 to 4 one by one for 5 minutes, the weight G3 of each sample plate was recorded after draining, and the degreasing rate was calculated as (G3-G2)/R100%, and the experimental results are shown in table 1.
TABLE 1 test data
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example | |
| Degreasing time (min) | 5.5 | 5.5 | 5.0 | 4.5 | 10 |
| Defatting rate | 99.2 | 99.4 | 99.5 | 99.6 | 92.5 |
| Temperature of | At room temperature | At room temperature | At room temperature | At room temperature | 55℃ |
| Sewage treatment process | Direct drainage | Direct drainage | Direct drainage | Direct drainage | Discharge after dephosphorization |
As can be seen from table 1, the degreasing agents of examples 1 to 4 all had excellent oil stain removing ability and oil stain removing efficiency.
In modern coating operation, customers also put forward higher requirements on industrial cleaning chemicals, and the degreasing agent in the embodiments 1 to 4 has the advantages of environmental protection, high cleaning efficiency, strong cleaning force, high production efficiency, stable quality, and low production cost (low dosage and good effect), and can not cause phosphorus pollution through the experimental data in the table 1, and has better environmental protection. The degreasing agent disclosed by the invention has the advantages that 12-15 carbon isomeric alcohol ethoxylate, an HLB (5-13) O/W emulsifier and a fatty acid sorbitan emulsifier are adopted as degreasing components, and the degreasing and decontaminating characteristics of sodium carbonate, sodium hydroxide, sodium citrate and sodium gluconate are combined, so that the degreasing agent has a good cleaning effect, is high in cleaning efficiency and environment-friendly, and has a good degreasing and degreasing effect at normal temperature.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The foregoing has provided a detailed description of the invention. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (5)
1. The phosphorus-free degreasing agent is characterized by being prepared by mixing the following raw materials in percentage by weight:
5 to 20 percent of sodium carbonate,
5 to 20 percent of sodium hydroxide,
2 to 8 percent of sodium citrate,
2 to 10 percent of sodium gluconate,
1-5% of 12-15 carbon isomeric alcohol ethoxylate,
0.5 to 2 percent of polyol sucrose ester,
0.5 to 2 percent of fatty acid sorbitan emulsifier,
the balance being water.
2. The phosphorus-free degreasing agent according to claim 1, wherein the phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
8 to 18 percent of sodium carbonate,
8 to 14 percent of sodium hydroxide,
3 to 7 percent of sodium citrate,
2 to 8 percent of sodium gluconate,
2-4% of 12-15 carbon isomeric alcohol ethoxylate,
0.5 to 2 percent of polyol sucrose ester,
0.5 to 2 percent of fatty acid sorbitan emulsifier,
the balance being water.
3. The phosphorus-free degreasing agent according to claim 1, wherein the phosphorus-free degreasing agent is prepared by mixing the following raw materials in percentage by weight:
18 percent of sodium carbonate,
12 percent of sodium hydroxide,
5 percent of sodium citrate,
5 percent of sodium gluconate,
3% of 12-15 carbon isomeric alcohol ethoxylate,
2 percent of polyhydric alcohol sucrose ester,
2 percent of fatty acid sorbitan emulsifier,
the balance being water.
4. The phosphorus-free degreaser according to claim 1, wherein: the polyol sucrose ester is an HLB (5-13) O/W emulsifier.
5. A method for preparing the phosphorus-free degreasing agent according to claim 1, wherein the method comprises the following steps:
firstly, weighing raw materials of each component according to the formula amount,
secondly, dispersing sodium carbonate and sodium hydroxide in water accounting for 40 +/-5 percent of the total amount, then sequentially adding sodium citrate, sodium gluconate, a nonionic surfactant, polyol sucrose ester, a dispersing agent, fatty acid sorbitan emulsifier and the balance of water, stirring uniformly until complete decomposition, and standing to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010662487.5A CN111690942A (en) | 2020-07-10 | 2020-07-10 | Phosphorus-free degreasing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010662487.5A CN111690942A (en) | 2020-07-10 | 2020-07-10 | Phosphorus-free degreasing agent and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694946A (en) * | 2015-03-13 | 2015-06-10 | 武汉钢铁(集团)公司 | Phosphorus-free degreaser |
| CN105220166A (en) * | 2015-09-28 | 2016-01-06 | 武汉钢铁(集团)公司 | A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof |
| CN105624694A (en) * | 2014-10-31 | 2016-06-01 | 郁丁丁 | Preparation method of environment-friendly phosphorus-free water base metal cleaning agent |
| CN108914142A (en) * | 2018-07-03 | 2018-11-30 | 苏州大韩化工有限公司 | A kind of Environmentally-friephosphorus-free phosphorus-free degreasing agent |
-
2020
- 2020-07-10 CN CN202010662487.5A patent/CN111690942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624694A (en) * | 2014-10-31 | 2016-06-01 | 郁丁丁 | Preparation method of environment-friendly phosphorus-free water base metal cleaning agent |
| CN104694946A (en) * | 2015-03-13 | 2015-06-10 | 武汉钢铁(集团)公司 | Phosphorus-free degreaser |
| CN105220166A (en) * | 2015-09-28 | 2016-01-06 | 武汉钢铁(集团)公司 | A kind of painting dressing automobiles Environment-friendlydegreasant degreasant and using method thereof |
| CN108914142A (en) * | 2018-07-03 | 2018-11-30 | 苏州大韩化工有限公司 | A kind of Environmentally-friephosphorus-free phosphorus-free degreasing agent |
Non-Patent Citations (2)
| Title |
|---|
| 夏泽平: "电镀前处理除油剂TR―1的研制及工艺研究", 《电机电器技术》 * |
| 潘恒国等: ""异构十三醇乙氧基化物的性能与应用"", 《第八届全国工业表面活性剂发展研讨会》 * |
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Application publication date: 20200922 |