CN113681018A - Preparation method of ultrathin porous micron zinc sheet - Google Patents
Preparation method of ultrathin porous micron zinc sheet Download PDFInfo
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- CN113681018A CN113681018A CN202111010283.4A CN202111010283A CN113681018A CN 113681018 A CN113681018 A CN 113681018A CN 202111010283 A CN202111010283 A CN 202111010283A CN 113681018 A CN113681018 A CN 113681018A
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- Prior art keywords
- zinc
- ultra
- thin porous
- preparing
- inert gas
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 45
- 239000011701 zinc Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000000498 ball milling Methods 0.000 claims abstract description 22
- 239000011261 inert gas Substances 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 16
- 230000008018 melting Effects 0.000 claims abstract description 16
- 238000001291 vacuum drying Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000000443 aerosol Substances 0.000 claims abstract description 7
- 238000009833 condensation Methods 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/12—Making metallic powder or suspensions thereof using physical processes starting from gaseous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a preparation method of an ultrathin porous micron zinc sheet. The zinc sheet is in the form of scale powder and has the characteristics of large diameter-thickness ratio and ultra-thin. Firstly, heating and melting a high-purity zinc ingot in a melting and liquating furnace, converting the high-purity zinc ingot into steam, introducing the zinc steam into a condenser filled with inert gas, and attracting submicron or nanometer zinc powder particles in the condenser and aerosol formed by the inert gas into a condensation cyclone separator through an exhaust fan under the protection of the inert gas to obtain submicron spherical zinc powder. Then, the spherical zinc powder with submicron scale is subjected to ball milling, centrifugal separation and vacuum drying to obtain the ultrathin porous zinc micron sheet.
Description
Technical Field
The invention relates to the field of preparation of ultrathin porous micron zinc sheets.
Background
The ultrathin porous micron zinc sheet is an important raw material for producing water-soluble inorganic salt paint, inorganic zinc-rich paint and dacromet coating liquid, and has incomparable advantages compared with other micron/nanometer inorganic powder materials in the field of metal deep corrosion prevention. The production method commonly used at present comprises an explosion method, a ball milling method, an electrolysis method and the like, but the product has the defects of high oxidation rate, low purity, uneven particle size distribution, narrow extension plane range, low diameter-thickness ratio, low flaking rate and the like.
Disclosure of Invention
The invention overcomes the defects and provides a preparation method of an ultrathin porous micron zinc sheet, which is characterized by comprising the following steps:
A. heating and melting a high-purity zinc ingot in a melting and liquating furnace, and converting the high-purity zinc ingot into steam;
B. introducing the vapor obtained in the step A into a condenser filled with inert gas, and under the protection of the inert gas, sucking aerosol formed by submicron or nanometer zinc powder particles and the inert gas in the condenser into a condensation cyclone separator by an exhaust fan to obtain submicron spherical zinc powder;
C. b, ball milling the spherical zinc powder obtained in the step B together with solvent oil and an auxiliary agent;
D. c, performing centrifugal treatment on the zinc powder subjected to ball milling treatment obtained in the step C;
E. and D, placing the zinc powder obtained in the step D into a vacuum drying furnace, drying at a certain temperature, and cooling to room temperature along with the furnace to obtain the ultrathin porous zinc micron sheet.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the zinc content of the high-purity zinc ingot is more than or equal to 99.99%.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the high-purity zinc ingot is heated and melted in a melting and liquating furnace at the temperature of 950-1100 ℃.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the inert gas is argon.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the rotating speed of the ball milling ball mill is 500-800 r/min.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the ball milling treatment time is 1-2 hours.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the centrifugal treatment time is 3-4 hours.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the vacuum drying air pressure is 0.5-2 Pa.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the vacuum drying temperature is 200-400 ℃.
The preparation method of the ultrathin porous micron zinc sheet is further improved in that the vacuum drying treatment time is more than 6 hours.
The ultrathin porous micron zinc sheet prepared by the method has the characteristics of large diameter-thickness ratio and ultrathin property, has obvious corrosion prevention and oxidation resistance effects, high activity and excellent conductivity, realizes high efficiency, short period, low energy consumption and zero emission, and meets the application requirements of different fields.
Drawings
FIG. 1 is an SEM photograph of a zinc sheet prepared by the preparation method of the ultrathin porous micron zinc sheet.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples, but the present invention is not limited to the following examples.
Example 1:
heating a high-purity zinc ingot with the zinc content of more than or equal to 99.99 percent to 950 ℃ in a melting and liquating furnace for melting and converting into steam; introducing steam into a condenser filled with argon, and under the protection of inert gas argon, sucking aerosol formed by submicron or nanometer zinc powder particles and inert gas in the condenser into a condensation cyclone separator through an exhaust fan to obtain submicron spherical zinc powder; carrying out ball milling treatment on the obtained spherical zinc powder, solvent oil and an auxiliary agent together, wherein the rotating speed of a ball mill is 500 r/min, and the ball milling treatment time is 2 hours; carrying out centrifugal treatment on the obtained zinc powder subjected to ball milling treatment for 4 hours; then placing the mixture in a vacuum drying furnace with the air pressure of 0.5Pa, drying the mixture for more than 6 hours at the temperature of 400 ℃, and cooling the mixture to room temperature along with the furnace to obtain the ultrathin porous zinc micron sheet.
Example 2:
heating a high-purity zinc ingot with the zinc content of more than or equal to 99.99 percent to 1000 ℃ in a melting and liquating furnace for melting and converting into steam; introducing steam into a condenser filled with argon, and under the protection of inert gas argon, sucking aerosol formed by submicron or nanometer zinc powder particles and inert gas in the condenser into a condensation cyclone separator through an exhaust fan to obtain submicron spherical zinc powder; carrying out ball milling treatment on the obtained spherical zinc powder, solvent oil and an auxiliary agent together, wherein the rotating speed of a ball mill is 600 revolutions per minute, and the ball milling treatment time is 1.5 hours; carrying out centrifugal treatment on the obtained zinc powder subjected to ball milling treatment for 4 hours; and then placing the mixture in a vacuum drying furnace with the air pressure of 1Pa, drying the mixture for more than 6 hours at the temperature of 300 ℃, and cooling the mixture to room temperature along with the furnace to obtain the ultrathin porous zinc micron sheet.
Example 3:
heating a high-purity zinc ingot with the zinc content of more than or equal to 99.99 percent to 1100 ℃ in a melting and liquating furnace for melting and converting into steam; introducing steam into a condenser filled with argon, and under the protection of inert gas argon, sucking aerosol formed by submicron or nanometer zinc powder particles and inert gas in the condenser into a condensation cyclone separator through an exhaust fan to obtain submicron spherical zinc powder; carrying out ball milling treatment on the obtained spherical zinc powder, solvent oil and an auxiliary agent together, wherein the rotating speed of a ball mill is 700 r/min, and the ball milling treatment time is 1 hour; carrying out centrifugal treatment on the obtained zinc powder subjected to ball milling treatment for 3 hours; then placing the mixture in a vacuum drying furnace with the air pressure of 1.5Pa, drying the mixture for more than 6 hours at the temperature of 200 ℃, and cooling the mixture to room temperature along with the furnace to obtain the ultrathin porous zinc micron sheet.
Example 4:
heating a high-purity zinc ingot with the zinc content of more than or equal to 99.99 percent to 1100 ℃ in a melting and liquating furnace for melting and converting into steam; introducing steam into a condenser filled with argon, and under the protection of inert gas argon, sucking aerosol formed by submicron or nanometer zinc powder particles and inert gas in the condenser into a condensation cyclone separator through an exhaust fan to obtain submicron spherical zinc powder; carrying out ball milling treatment on the obtained spherical zinc powder, solvent oil and an auxiliary agent together, wherein the rotating speed of a ball mill is 800 r/min, and the ball milling treatment time is 1 hour; carrying out centrifugal treatment on the obtained zinc powder subjected to ball milling treatment for 3 hours; and then placing the mixture in a vacuum drying furnace with the air pressure of 2Pa, drying the mixture for more than 6 hours at the temperature of 250 ℃, and cooling the mixture to room temperature along with the furnace to obtain the ultrathin porous zinc micron sheet.
The ultrathin porous micron zinc sheet prepared by the invention has uniform particle size distribution and low thickness, and the particle size and thickness are tested as follows:
finally, it should be noted that although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein or by using equivalent structures or equivalent processes performed in the specification and the drawings of the present invention, and are included in the scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010283.4A CN113681018A (en) | 2021-08-31 | 2021-08-31 | Preparation method of ultrathin porous micron zinc sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010283.4A CN113681018A (en) | 2021-08-31 | 2021-08-31 | Preparation method of ultrathin porous micron zinc sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113681018A true CN113681018A (en) | 2021-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111010283.4A Pending CN113681018A (en) | 2021-08-31 | 2021-08-31 | Preparation method of ultrathin porous micron zinc sheet |
Country Status (1)
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|---|---|
| CN (1) | CN113681018A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431074A (en) * | 2003-01-24 | 2003-07-23 | 翟国华 | Method for producing zinc powder and its mfg. device |
| US20050150984A1 (en) * | 2002-09-23 | 2005-07-14 | Savin Ronald R. | Process for dry milling zinc powder to produce zinc flake |
| CN101391305A (en) * | 2008-11-04 | 2009-03-25 | 昆明海创兴科技有限公司 | Manufacture method of superfine laminar zinc powder and zinc pulp |
| CN101618458A (en) * | 2009-07-17 | 2010-01-06 | 江苏科创金属新材料有限公司 | Preparation method of sub-micron zinc powder and preparation device thereof |
| CN104815987A (en) * | 2015-05-07 | 2015-08-05 | 昆明冶金研究院 | Flaky zinc powder preparation method |
| CN112846207A (en) * | 2021-01-15 | 2021-05-28 | 昆明冶金研究院有限公司 | Preparation method of superfine active zinc powder |
-
2021
- 2021-08-31 CN CN202111010283.4A patent/CN113681018A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050150984A1 (en) * | 2002-09-23 | 2005-07-14 | Savin Ronald R. | Process for dry milling zinc powder to produce zinc flake |
| CN1431074A (en) * | 2003-01-24 | 2003-07-23 | 翟国华 | Method for producing zinc powder and its mfg. device |
| CN101391305A (en) * | 2008-11-04 | 2009-03-25 | 昆明海创兴科技有限公司 | Manufacture method of superfine laminar zinc powder and zinc pulp |
| CN101618458A (en) * | 2009-07-17 | 2010-01-06 | 江苏科创金属新材料有限公司 | Preparation method of sub-micron zinc powder and preparation device thereof |
| CN104815987A (en) * | 2015-05-07 | 2015-08-05 | 昆明冶金研究院 | Flaky zinc powder preparation method |
| CN112846207A (en) * | 2021-01-15 | 2021-05-28 | 昆明冶金研究院有限公司 | Preparation method of superfine active zinc powder |
Non-Patent Citations (1)
| Title |
|---|
| 严海锦等: "超薄超细鳞片状锌粉(锌片)制备技术研究", 《上海化工》 * |
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