CN111495600A - Scheelite flotation method - Google Patents
Scheelite flotation method Download PDFInfo
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- CN111495600A CN111495600A CN202010290212.3A CN202010290212A CN111495600A CN 111495600 A CN111495600 A CN 111495600A CN 202010290212 A CN202010290212 A CN 202010290212A CN 111495600 A CN111495600 A CN 111495600A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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Abstract
The invention discloses a scheelite flotation method, which comprises the following steps: s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore; s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate 1; s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate 2; s4, selecting: the method is scientific and reasonable in structure and safe and convenient to use, the grade of the rough concentrate reaches 2.6 percent through a rough-fine-sweep process test, the recovery rate is 79.8 percent, the effect is obvious, the concentrate grade is 64.87 percent through rough-triple-fine flotation under the conditions of heating, the sodium sulfide consumption is 14Kg/t, the caustic soda consumption is 1000g/t and the water glass consumption is 100Kg/t, the standard ton ore grade of white tungsten is reached, the recovery rate is 75.4 percent under the condition of no scavenging, and the test effect is good.
Description
Technical Field
The invention relates to the technical field of scheelite flotation, in particular to a scheelite flotation method.
Background
The scheelite is a kind of wolframite, the wolfram is a metal element, and the silver is white crystal, hard and brittle, has high melting point, and can be made into very thin wires and special alloy steel: tungsten filament, ferrotungsten and tungsten steel, the main tungsten ores are dozens of kinds, and the Chinese is mainly two kinds; wolframite (wolframite) and scheelite (calcium tungstate ore);
however, the existing scheelite flotation method cannot improve the grade of tungsten, has poor monomer dissociation effect and is inconvenient to recover.
Disclosure of Invention
The invention provides a scheelite flotation method, which can effectively solve the problems that the existing scheelite flotation method cannot improve the grade of tungsten, has poor monomer dissociation effect and is inconvenient to recover in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a scheelite flotation method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate 1;
s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate 2;
s4, selecting: putting the concentrate 1 and the rough concentrate 2 into a flotation machine together, and adding water glass to obtain rough concentrate and middling.
According to the technical scheme, the ore grinding time is prolonged to 15 minutes in the step S1, and the mineral fineness is 80% at-200 meshes, so that the next operation can be carried out.
According to the technical scheme, the contents of caustic soda, water glass and MP in the step S2 are respectively 400g/t, 6000g/t and 600/t, respectively, 200-;
the MP content in the step S3 is 200 g/t;
the water glass content in the step S4 is 2000 g/t.
According to the technical scheme, the tailings, the rough concentrates and the middlings in the steps S3 and S4 need to be detected, and the detection items are yield (%), grade (%), and recovery (%).
According to the technical scheme, the heating test is carried out on the rough concentrate in the step S4, and the test steps are as follows:
a1, adding the rough concentrate into caustic soda, sodium sulfide and water glass for roughing;
a2, separating into tailings and concentrate 1 after rough concentration;
and A3, carrying out three times of concentration on the concentrate 1 by a flotation machine to obtain concentrate and middling.
And A4, collecting middlings, concentrates and tailings obtained by three times of concentration and detecting.
According to the technical scheme, the content of caustic soda, sodium sulfide and water glass in the step A1 is 800-1200g/t, 13000-15000g/t and 90-110 Kg/t.
According to the technical scheme, the detection items in the step A4 are yield (%), grade (%), and recovery (%).
According to the technical scheme, in the step S1, the raw ore is subjected to grade detection, the names of the raw ore are tungsten, fluorite and calcium carbonate, the grade detection is recorded, and the data are compared with the data in the step S4 and the step A4.
According to the technical scheme, before the concentrate 1 and the rough concentrate 2 are added in the step S4, screening is carried out, the fineness of the minerals is controlled to be-200 meshes and 80%, and macroscopic impurities are removed.
According to the technical scheme, in the step A3, the middlings and the concentrates which are floated each time are separated through concentration, the concentrates are floated independently, and finally the middlings are collected uniformly.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, and the coarse concentrate grade reaches 2.6 percent and the recovery rate is 79.8 percent through a coarse-fine-scavenging flow test. The effect is obvious, the concentrate grade of 64.87% can be obtained by one-step rough three-step fine flotation under the conditions of heating sodium sulfide dosage of 14Kg/t, caustic soda dosage of 1000g/t and water glass dosage of 100Kg/t, the standard ton ore grade of scheelite is achieved, the recovery rate is 75.4% under the condition of no scavenging, the test effect is good, the final scheelite concentrate grade of 64.87% is obtained through the whole process test, and the actual recovery rate is 60.1% (rough concentration recovery rate), and the recovery rate is obtained under the condition of no scavenging, so that the method is suitable for popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of a flow structure of a small laboratory test according to the present invention;
FIG. 2 is a schematic structural view of a structural grinding test flow of the present invention;
FIG. 3 is a schematic diagram of the caustic soda condition test flow scheme of the present invention;
FIG. 4 is a schematic diagram of the structure of a test flow for the amount of water glass used in the present invention;
FIG. 5 is a schematic diagram of the MP dosage test flow structure according to the present invention;
FIG. 6 is a schematic diagram of a flow test configuration of the present invention;
FIG. 7 is a schematic of the flotation process configuration of the present invention;
FIG. 8 is a schematic view of the heating test procedure of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The raw ore grades are listed in the following table by the test of raw ore:
| name (R) | Tungsten | Fluorite (Fluorite) | Calcium carbonate |
| Grade (%) | 0.3 | 16.15 | 7.6 |
Example 1:
as shown in fig. 1, the invention provides a technical scheme, and a scheelite flotation method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding sodium carbonate, caustic soda, water glass and MP, and performing flotation to obtain scheelite rough tailings and tailings.
According to the technical scheme, the contents of sodium carbonate, caustic soda, water glass and MP in the step S2 are respectively 9.5Kg/t, 800g/t, 17Kg/t and 800 g/t;
in the flotation process, the scheelite is not enriched, no foam exists in the roughing process, the concentrate grade of a dressing plant is not high at all, the tailings are below 0.1 percent, and the assay is not carried out due to poor dressing effect.
Example 2:
as shown in fig. 2, the invention provides a technical scheme, and a scheelite flotation method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate;
s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate;
s4, collecting: and collecting the rough concentrate, and detecting.
According to the technical scheme, the content of caustic soda, the content of water glass and the content of MP in the step S2 are respectively 1500g/t, 400g/t and 600/t;
in the step S3, the MP content is 200 g/t;
the water glass content in step S4 was 2000 g/t.
According to the technical scheme, the tailings, the rough concentrates and the middlings in the steps S3 and S4 need to be detected, and the detection items are yield (%), grade (%), and recovery (%).
The test results are given in the following table:
it can be seen from the test that the longer the grinding time, the higher the monomer dissociation degree of the ore, and under the condition of equivalent grade, the highest recovery rate of the ore is obtained under the condition of grinding fineness of-200 meshes and 76%.
Example 3:
as shown in fig. 3, the invention provides a technical scheme, and a scheelite flotation method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate;
s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate;
s4, collecting: and collecting the rough concentrate, and detecting.
According to the technical scheme, the content of caustic soda, the content of water glass and the content of MP in the step S2 are respectively 1500g/t, 400g/t and 600/t;
in the step S3, the MP content is 200 g/t;
the water glass content in step S4 was 2000 g/t.
According to the technical scheme, the tailings, the rough concentrates and the middlings in the steps S3 and S4 need to be detected, and the detection items are yield (%), grade (%), and recovery (%).
According to the technical scheme, the next operation can be carried out only when the ore grinding time is prolonged to 8 minutes and the mineral fineness is 80% at-200 meshes in the step S1.
The test results are given in the following table:
the recovery rate was the best in the case of caustic soda usage of 300g/t in the test.
Example 4:
as shown in fig. 4, the invention provides a technical scheme, and a scheelite flotation method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain scheelite rough concentrate and tailings.
According to the technical scheme, the content of caustic soda, the content of water glass and the content of MP in the step S2 are respectively 300g/t, and the variable is 800/t;
the test results are given in the following table:
experiments show that the increase of the using amount of the water glass does not effectively inhibit the gangue, the increase of the water glass causes the foams to be sticky in the flotation process, the grade and the recovery rate are reduced, and the recovery rate can reach 96% when the using amount of the water glass is 3 KG/t.
Example 5:
as shown in fig. 5, the present invention provides a technical solution, a scheelite flotation method, comprising the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain scheelite rough concentrate and tailings.
According to the technical scheme, the content of caustic soda, water glass and MP in the step S2 is respectively 300g/t, 3000g/t and variable.
The test results are given in the following table:
it can be seen from the flotation that the flotation froth is sticky during the roughing process, which results in lower grade of the rough concentrate under various conditions during the whole roughing process, and in order to better improve the grade and the recovery rate, the following steps are performed for one rough step and one fine step.
Example 6:
as shown in fig. 6, the present invention provides a technical solution, a scheelite flotation method, comprising the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate 1;
s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate 2;
s4, selecting: putting the concentrate 1 and the rough concentrate 2 into a flotation machine together, and adding water glass to obtain rough concentrate and middling.
According to the technical scheme, the content of caustic soda, water glass and MP in the step S2 is respectively 300g/t, 3000g/t and 500/t;
the MP content in step S3 is 200 g/t.
The water glass content in step S3 was 2000 g/t.
The test results are given in the following table:
| name (R) | Yield (%) | Grade (%) | Recovery (%) |
| Coarse concentrate | 9.2 | 0.9 | 30.5 |
| Middling | 20.4 | 0.86 | 64.3 |
| Tailings | 86.6 | 0.02 | 5.2 |
This test shows that the mineral can be reduced to 0.02% by one sweep of the tailings, but it can be seen by one pass that the mineral has not been subjected to monomer dissociation. Therefore, the ore grinding time must be prolonged to effectively achieve mineral dissociation. The next test is carried out by prolonging the grinding time to 15 minutes, and carrying out the above process test when the mineral fineness is-200 meshes and 80%.
Example 7:
as shown in fig. 7 to 8, the present invention provides a technical solution, a scheelite flotation method, comprising the steps of:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate 1;
s3, scavenging: adding MP into the rough tailings, separating, and performing flotation to obtain tailings and rough concentrate 2
S4, selecting: putting the concentrate 1 and the rough concentrate 2 into a flotation machine together, and adding water glass to obtain rough concentrate and middling.
According to the technical scheme, the next operation can be carried out only when the ore grinding time is prolonged to 15 minutes and the mineral fineness is 80% at-200 meshes in step S1.
According to the technical scheme, the content of caustic soda, the content of water glass and the content of MP in the step S2 are respectively 300g/t, 5000g/t and 500/t;
in the step S3, the MP content is 200 g/t;
the water glass content in step S4 was 2000 g/t.
According to the technical scheme, the tailings, the rough concentrates and the middlings in the steps S3 and S4 need to be detected, and the detection items are yield (%), grade (%), and recovery (%).
The test results are given in the following table:
| name (R) | Yield (%) | Grade (%) | Recovery (%) |
| Coarse concentrate | 12.5 | 2.6 | 79.8 |
| Middling | 25.8 | 0.2 | 12.6 |
| Tailings | 61.7 | 0.05 | 7.6 |
Through a primary coarse-fine-sweep flow test, the grade of the coarse concentrate reaches 2.6 percent, and the recovery rate is 79.8 percent. The effect is obvious.
According to the technical scheme, the heating test is carried out on the rough concentrate in the step S4, and the test steps are as follows:
a1, adding the rough concentrate into caustic soda, sodium sulfide and water glass for roughing;
a2, separating into tailings and concentrate 1 after rough concentration;
and A3, carrying out three times of concentration on the concentrate 1 by a flotation machine to obtain concentrate and middling.
And A4, collecting middlings, concentrates and tailings obtained by three times of concentration and detecting.
According to the technical scheme, the content of caustic soda, sodium sulfide and water glass in the step A1 is 1000g/t, 14000g/t and 100 Kg/t.
According to the above technical scheme, the detection items in the step A4 are yield (%), grade (%), and recovery (%).
According to the technical scheme, the raw ore is subjected to grade detection in the step S1, the detection names are tungsten, fluorite and calcium carbonate, the detection names are recorded, and the data are compared with the data in the step S4 and the step A4.
According to the technical scheme, before the concentrate 1 and the rough concentrate 2 are added in the step S4, screening is carried out, the fineness of the minerals is controlled to be-200 meshes and 80%, and macroscopic impurities are removed.
According to the technical scheme, in the step A3, the middlings and the concentrates which are floated each time are separated through concentration, the concentrates are floated independently, and finally the middlings are collected uniformly.
The test results are given in the following table:
| name (R) | Yield (%) | Grade (%) | Recovery (%) |
| Concentrate ore | 3 | 64.87 | 75.4 |
| Middling | 40.2 | 0.08 | 12.6 |
| Tailings | 56.8 | 0.54 | 12 |
Through a heating test, the concentrate grade reaches 64.87%, the standard ton ore grade of the scheelite is reached, the recovery rate is 75.4% under the condition of no scavenging, and the test effect is good.
The tests show that the mineral has fine embedded particle size, 80 percent of-200 meshes, the mineral is dissociated in monomer, the traditional means of good flotation effect of the scheelite flotation under the high alkali condition is broken through in the test process, the ore pulp is relatively viscous under the high alkali condition, the flotation effect is relatively good under the condition of PH 8, the caustic soda consumption at the roughing section is 300g/t, the water glass consumption is 7Kg/t, and the MP consumption is 700g/t, the rough concentrate grade reaches 2.6 percent, the recovery rate is 79.8 percent, the effect is relatively obvious, the sodium sulfide consumption is 14Kg/t, the caustic soda consumption is 1000g/t, and the water glass consumption is 100Kg/t, the concentrate grade 64.87 percent can be obtained through the rough three-fine flotation under the conditions of heating, the white tungsten standard ton ore grade is reached, and the recovery rate is 75.4 percent under the condition of no scavenging, the test effect is good, and through the whole process test, the final scheelite concentrate grade is 64.87%, and the actual recovery rate is 60.1% (roughing recovery rate and heating concentration recovery rate), which is obtained under the condition of no scavenging.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A scheelite flotation method is characterized in that: the method comprises the following steps:
s1, crushing: carrying out ball milling on the raw ore by a ball mill, and screening to obtain the raw ore;
s2, rough selection: adding caustic soda, water glass and MP, and performing flotation to obtain coarse tailings and concentrate 1;
s3, scavenging: adding MP into the coarse tailings, separating, and performing flotation to obtain tailings and coarse concentrate 2;
s4, selecting: putting the concentrate 1 and the rough concentrate 2 into a flotation machine together, and adding water glass to obtain rough concentrate and middling.
2. The scheelite flotation method according to claim 1, wherein the ore grinding time is prolonged to 15 minutes in step S1, and the ore fineness is 80% at-200 meshes, so that the next operation can be performed.
3. The scheelite flotation method as set forth in claim 1, wherein the caustic soda, the water glass and the MP content in step S2 are respectively 200-400g/t, 4000-6000g/t and 400-600/t;
the MP content in the step S3 is 200 g/t;
the water glass content in the step S4 is 2000 g/t.
4. The scheelite flotation method according to claim 1, wherein the tailings, the rough concentrates and the middlings in the steps S3 and S4 are detected, and the detection items are yield (%), grade (%), and recovery (%).
5. The scheelite flotation method according to claim 1, wherein the rough concentrate of step S4 is subjected to a heating test, the test steps being as follows:
a1, adding the rough concentrate into caustic soda, sodium sulfide and water glass for roughing;
a2, separating into tailings and concentrate 1 after rough concentration;
and A3, carrying out three times of concentration on the concentrate 1 by a flotation machine to obtain concentrate and middling.
And A4, collecting middlings, concentrates and tailings obtained by three times of concentration and detecting.
6. The scheelite flotation method as set forth in claim 5, wherein the content of caustic soda, sodium sulfide and water glass in the step A1 is 800-1200g/t, 13000-15000g/t and 90-110 Kg/t.
7. The scheelite flotation method according to claim 5, wherein the test items in the step A4 are yield (%), grade (%), and recovery (%).
8. The scheelite flotation process according to claim 7, wherein the raw ore is subjected to grade testing in step S1 under the names of tungsten, fluorite and calcium carbonate, and recorded for comparison with the data from step S4 and step A4.
9. The scheelite flotation method according to claim 1, wherein before the concentrate 1 and the rough concentrate 2 are added in the step S4, the ore is screened, the fineness of the ore is controlled to be 80% of-200 meshes, and macroscopic impurities are removed.
10. The scheelite flotation method according to claim 1, wherein the flotation in step A3 is implemented by separating each time of flotation middlings from the concentrate, performing flotation on the concentrate separately, and finally collecting the middlings uniformly.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475264A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Scheelite beneficiation method |
| CN105170338A (en) * | 2015-08-28 | 2015-12-23 | 张好勇 | Non-sulfide mineral flotation collector, preparation method thereof and application thereof |
| CN105597938A (en) * | 2015-09-29 | 2016-05-25 | 广州有色金属研究院 | Beneficiation method of scheelite |
-
2020
- 2020-04-14 CN CN202010290212.3A patent/CN111495600A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475264A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Scheelite beneficiation method |
| CN105170338A (en) * | 2015-08-28 | 2015-12-23 | 张好勇 | Non-sulfide mineral flotation collector, preparation method thereof and application thereof |
| CN105597938A (en) * | 2015-09-29 | 2016-05-25 | 广州有色金属研究院 | Beneficiation method of scheelite |
Non-Patent Citations (6)
| Title |
|---|
| 万林生: "《钨冶金》", 28 February 2011, 冶金工业出版社 * |
| 孟宪瑜等: "低品位白钨矿选矿工艺试验研究 ", 《有色矿冶》 * |
| 慕红梅: "《浮游分选技术》", 31 January 2015, 北京理工大学出版社 * |
| 胡红喜等: "湖南某白钨矿选矿试验研究 ", 《矿产综合利用》 * |
| 苏成德: "《选矿操作技术解疑》", 31 August 1999, 河北科学技术出版社 * |
| 郑灿辉等: "从河南栾川浮钼尾矿中综合回收白钨矿的生产实践 ", 《中国钨业》 * |
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Application publication date: 20200807 |