CN113980646B - High-efficiency environment-friendly low-temperature snow-melting agent - Google Patents
High-efficiency environment-friendly low-temperature snow-melting agent Download PDFInfo
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- CN113980646B CN113980646B CN202111434007.0A CN202111434007A CN113980646B CN 113980646 B CN113980646 B CN 113980646B CN 202111434007 A CN202111434007 A CN 202111434007A CN 113980646 B CN113980646 B CN 113980646B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
- C09K3/185—Thawing materials
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/144—Aminocarboxylic acids
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- Pest Control & Pesticides (AREA)
- Combustion & Propulsion (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
The invention provides a high-efficiency environment-friendly low-temperature snow-melting agent, which comprises the following components in parts by weight: 30-99.9 parts of potassium acetate, 0.1-30 parts of potassium formate, 0.1-30 parts of calcium magnesium acetate and 0.1-10 parts of corrosion inhibitor, wherein the corrosion inhibitor comprises amino acid and gluconate. The efficient environment-friendly low-temperature snow-melting agent disclosed by the invention has the advantages that through the coordinated low corrosion effect of the chlorine-free organic snow-melting agent, the corrosion speed of the snow-melting agent is reduced by adding the corrosion inhibitor, the compound which can be used as a potash fertilizer and a nitrogenous fertilizer for plant growth is also contained, the ice-melting capability of the snow-melting agent is enhanced, and the freezing point of the snow-melting agent is reduced; meanwhile, the snow-melting agent is easy to degrade, and reduces the pollution to the environment.
Description
Technical Field
The invention belongs to the technical field of snow melting and deicing, and particularly relates to a high-efficiency environment-friendly low-temperature snow-melting agent.
Background
In order to ensure that winter Olympic games can be carried out normally and smoothly, the snow removal of roads in winter is in need of new requirements. The chlorine salt type snow-melting agent mainly comprises industrial salt, the freezing point of sodium chloride is about minus 10 ℃ after the sodium chloride is dissolved in water, and the requirements of the low-temperature weather of a Yangqing and Zhangjiu at minus 15 ℃ to minus 35 ℃ cannot be met, especially the low-temperature snow-melting agent with the temperature of minus 25 ℃ to minus 35 ℃ in alpine regions, so that the problem that a person in the field needs to solve is how to develop the low-temperature type snow-melting agent with environment friendliness and low freezing point.
Disclosure of Invention
In view of the above, the present invention aims to provide a low freezing point and environmentally friendly efficient and environment-friendly low-temperature snow-melting agent to solve the above problems.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the efficient environment-friendly low-temperature snow-melting agent comprises the following components in parts by weight: 30-99.9 parts of potassium acetate, 0.1-30 parts of potassium formate, 0.1-30 parts of calcium magnesium acetate and 0.1-10 parts of corrosion inhibitor, wherein the corrosion inhibitor comprises amino acid and gluconate.
Further, the gluconate is sodium gluconate.
Further, the sustained release agent also comprises water.
Further, the sustained release agent comprises the following components in parts by mass: 0.1 to 40 parts of amino acid, 0.1 to 45 parts of sodium gluconate and 0 to 20 parts of water.
Further, the sustained release agent comprises the following components in parts by mass: 10-30 parts of amino acid, 10-30 parts of sodium gluconate and 5-15 parts of water.
Further, the mass ratio of the amino acid, the sodium gluconate and the water in the sustained release agent is 2:2:1.
wherein, the action principle of the sustained release agent is as follows: the corrosion inhibitor is essentially capable of inhibiting the occurrence of metal corrosion through the action (including physical adsorption and chemical adsorption) with metal, and the action mechanism is mainly three, wherein the adsorption type corrosion inhibition is that polar groups exist in the molecules of the corrosion inhibitor, so that the corrosion inhibitor can be adsorbed on the surface of a metal material to form a film, and the corrosive medium is prevented from contacting the metal material; secondly, the precipitation type corrosion inhibition is carried out, wherein the type corrosion inhibition is carried out by producing indissolvable substances and depositing the indissolvable substances on the surface of a metal material after the corrosion inhibitor molecules react with other ions in the corrosion environment, so that the metal is protected; thirdly, oxidation type corrosion inhibition is performed, wherein the type of corrosion inhibition utilizes the strong oxidizing property of the corrosion inhibitor to form a layer of passivation film on the surface of the metal substrate, so that the corrosion reaction is prevented. The corrosion inhibition effect of the amino acid corrosion inhibitor on metal in the corrosion medium is mainly that the arc electron on S, N in the amino acid molecule and Fe empty orbit form a surface complex to be adsorbed on the surface of carbon steel, so that a compact adsorption film is formed to effectively prevent the corrosion of metal, and the corrosion speed is greatly reduced.
Compared with the prior art, the high-efficiency environment-friendly low-temperature snow-melting agent has the following advantages:
the high-efficiency environment-friendly low-temperature snow-melting agent adjusts the formula components and the proportion, and the corrosion inhibitor is added simultaneously through the coordination low corrosion effect of the chlorine-free organic snow-melting agent, so that the corrosion speed of the snow-melting agent is reduced, and the high-efficiency environment-friendly low-temperature snow-melting agent contains compounds which can be used as potash fertilizers and nitrogenous fertilizers and can be used as nutritional fertilizers for plants; simultaneously, the ice-melting capability of the snow-melting agent is enhanced, the freezing point of the snow-melting agent is reduced, and the minimum temperature can be below-50 ℃; meanwhile, the snow-melting agent is easy to degrade, and reduces the pollution to the environment.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
1. Formulation of each snow-melting agent in examples and comparative examples
Table 1 shows the proportions of the components of the snow-melting agents of examples 1 to 5 and comparative example 1, wherein the values are in parts by mass:
TABLE 1
| Formulation composition | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 |
| Potassium acetate | 85 | 85 | 85 | 85 | 85 | 90 |
| Potassium formate | 5 | 5 | 5 | 5 | 5 | 5 |
| Calcium magnesium acetate | 5 | 5 | 5 | 5 | 5 | 5 |
| Gluconic acid sodium salt | 2 | 2 | 3 | 1 | 3 | 0 |
| Amino acids | 1 | 2 | 1 | 2 | 2 | 0 |
| Water and its preparation method | 2 | 1 | 1 | 2 | 0 | 0 |
2. Performance test of snow-melting Agents of examples 1 to 5 and comparative example 1
2-1. Corrosion test of metallic carbon steel:
corrosion test of metal carbon steel was carried out by rotary hanging piece method with reference to DB 11/T161-2012, 18 rectangular 20-gauge test metal carbon steel sheet (GB/T699) with dimensions of 5mm×2.5mm×0.2mm and surface area of 28mm 2 Wiping grease on the surface of the test metal carbon steel by using filter paper, soaking by using acetone and absolute ethyl alcohol, drying and weighing;
after weighing the samples, the 18 metal carbon steel sheets are divided into 6 groups, 3 sheets are arranged in each group, each group corresponds to an experimental formula, the metal carbon steel sheets in the divided groups are soaked in the snow melting agents in the examples 1-5 and the comparative example 1, and the ratio of the volume of the solution to the area of the samples is 25ml/cm 2 The test temperature is 40 ℃, no air is introduced in the test process, after soaking for 48 hours, rust on the surface of a sample is wiped off, and then the sample is washed by acid washing, alkali washing and pure water, and then the excess water is removed by absolute ethyl alcohol, dried and weighed; carrying out no corrosion treatment of snow melt agent on the other 1 blank metal carbon steel sheet, washing with acid, alkali and pure water, removing excessive water with absolute ethyl alcohol, drying and weighing;
the corrosion rate was measured according to the corrosion decrement, and the corrosion rate X was calculated as follows:
X＝8760×(m-m 1 )×10/(s×ρ×t)
wherein: m is the mass loss of the sample, g;
m 1 the blank metal carbon steel sheet which is not subjected to corrosion treatment of the snow melting agent is subjected to corresponding mass loss after acid washing, alkali washing and pure water washing;
s is the surface area of the sample, cm 2 ；
ρ is the density of the sample, g/cm 3 ；
t is experimental time, h;
8760 is the number of hours equivalent to one year, h/a;
10 is a millimeter number equivalent to 1cm, mm/cm.
The corrosion rate results of the snow-melting agents of examples 1 to 5 and comparative example 1 on the metallic carbon steel sheet are shown in Table 2.
2-2. Ice melting speed test:
and carrying out a snow-melting capability measurement experiment on the snow-melting agent according to the national standard GB 23851-2017 of the road deicing and snow-melting agent.
The test method comprises the following steps: adding 100mL of water into 18 150mL beakers, dividing the beakers into 6 groups of 3, wherein each group corresponds to an experimental formula, putting the beakers and the ice cubes in a low-temperature incubator at the temperature of-10 ℃ until the beakers and the ice cubes freeze, and weighing the beakers and the ice cubes for later use; and pouring the snow melting agents in the examples 1-5 and the comparative example 1 into the ice cubes in the beaker, taking out the beaker after 30min, pouring the liquid, rapidly weighing the mass of the rest ice cubes and the beaker, and obtaining the ice melting amount after pouring the snow melting agent and the difference of the mass of the beaker and the mass of the ice. In addition, a blank example was set, in which sodium chloride was added as a snow-melting agent, the ice-melting capacity was defined as 100%, and the ratio of the amount of ice melting in examples 1 to 5 and comparative example 1 to the amount of ice melting in the blank beaker was the ice-melting capacities of examples 1 to 5 and comparative example 1, and the test results of the ice-melting capacities are shown in table 2.
2-3 freezing point test:
the temperature meter was inserted into the snow-melting agents of examples 1 to 5 and comparative example 1 under the environment below the freezing point temperature, the change of the temperature with time was recorded, a temperature-time curve was drawn, the temperature corresponding to the gentle place of the curve was the freezing point temperature of the snow-melting agent, and the test results are shown in table 2.
TABLE 2
As can be seen from Table 2, the experimental data of example 2 is optimal, with the lowest corrosion rate of carbon steel, the highest ice melting capacity and the lowest freezing point.
Compared with the formula of the example 1 and the formula of the example 2, the proportion of amino acid is lower, the effect is inferior to that of the example 2 as can be seen from experimental data, and the influence of the amount of the amino acid on the carbon steel corrosion rate, the ice melting capacity and the data of the freezing point of the metal carbon steel is larger; compared with the formula of the example 4 and the formula of the example 2, the proportion of the sodium gluconate is lower, and experimental data show that the effect is slightly worse than that of the example 2, so that the amount of the sodium gluconate has a certain influence on the carbon steel corrosion rate, ice melting capacity and freezing point data of the metal carbon steel; examples 1 to 5 are superior to comparative example 1 in terms of carbon steel corrosion rate, ice melting ability and freezing point of the metal carbon steel.
In the experimental data of examples 1-5 and comparative example 1, the freezing point is lower than-25 ℃, especially the freezing point in example 2 and example 4 is lower than-40 ℃, which indicates that the snow-melting agent belongs to a low-temperature type snow-melting agent, and the corrosion rate of the minimum carbon steel reaches 0.0266mm/a, which is far smaller than the requirements of national standard of 0.11mm/a, which indicates that the snow-melting agent belongs to an environment-friendly snow-melting agent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The efficient environment-friendly low-temperature snow-melting agent is characterized by comprising the following components in parts by mass: 30-99.9 parts of potassium acetate, 0.1-30 parts of potassium formate, 0.1-30 parts of calcium magnesium acetate and 0.1-10 parts of corrosion inhibitor, wherein the corrosion inhibitor comprises amino acid and gluconate.
2. The efficient and environment-friendly low-temperature snow-melting agent according to claim 1, which is characterized in that: the gluconate is sodium gluconate.
3. The efficient and environment-friendly low-temperature snow-melting agent according to claim 1, which is characterized in that: the corrosion inhibitor also includes water.
4. The efficient and environment-friendly low-temperature snow-melting agent according to claim 1, which is characterized in that: the corrosion inhibitor comprises the following components in parts by mass: 0.1 to 40 parts of amino acid, 0.1 to 45 parts of sodium gluconate and 0 to 20 parts of water.
5. The efficient and environment-friendly low-temperature snow-melting agent according to claim 4, which is characterized in that: the corrosion inhibitor comprises the following components in parts by mass: 10-30 parts of amino acid, 10-30 parts of sodium gluconate and 5-15 parts of water.
6. The efficient and environment-friendly low-temperature snow-melting agent according to claim 5, which is characterized in that: the mass ratio of the amino acid, sodium gluconate and water in the corrosion inhibitor is 2:2:1.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102399534A (en) * | 2011-12-01 | 2012-04-04 | 北京化工大学 | Organic/inorganic composite environment-friendly snow melting agent and preparation method thereof |
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| CN107022341A (en) * | 2017-04-10 | 2017-08-08 | 中盐工程技术研究院有限公司 | A kind of high-efficient corrosion inhibition type environment-friendly snowmelt agent |
| CN108084965A (en) * | 2017-12-29 | 2018-05-29 | 刘志浩 | A kind of environment-friendly snowmelt agent |
| CN108395878A (en) * | 2018-02-13 | 2018-08-14 | 沈阳工业大学 | A kind of dedicated efficient green deicing salt in airport |
| CN108485605A (en) * | 2018-05-03 | 2018-09-04 | 中盐金坛盐化有限责任公司 | A kind of dedicated snow melt deicer and preparation method thereof with antistrip performance of airfield runway |
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2021
- 2021-11-29 CN CN202111434007.0A patent/CN113980646B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399534A (en) * | 2011-12-01 | 2012-04-04 | 北京化工大学 | Organic/inorganic composite environment-friendly snow melting agent and preparation method thereof |
| CN106833527A (en) * | 2017-04-10 | 2017-06-13 | 中盐工程技术研究院有限公司 | A kind of high-efficiency environment friendly inhibition compounds Snow Agent |
| CN106867456A (en) * | 2017-04-10 | 2017-06-20 | 中盐工程技术研究院有限公司 | A kind of high-efficient corrosion inhibition type villaumite type Snow Agent |
| CN107022341A (en) * | 2017-04-10 | 2017-08-08 | 中盐工程技术研究院有限公司 | A kind of high-efficient corrosion inhibition type environment-friendly snowmelt agent |
| CN108084965A (en) * | 2017-12-29 | 2018-05-29 | 刘志浩 | A kind of environment-friendly snowmelt agent |
| CN108395878A (en) * | 2018-02-13 | 2018-08-14 | 沈阳工业大学 | A kind of dedicated efficient green deicing salt in airport |
| CN108485605A (en) * | 2018-05-03 | 2018-09-04 | 中盐金坛盐化有限责任公司 | A kind of dedicated snow melt deicer and preparation method thereof with antistrip performance of airfield runway |
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