CN112826007A - Device and method for removing heavy metals by propolis mixed liquid - Google Patents
Device and method for removing heavy metals by propolis mixed liquid Download PDFInfo
- Publication number
- CN112826007A CN112826007A CN202110114249.5A CN202110114249A CN112826007A CN 112826007 A CN112826007 A CN 112826007A CN 202110114249 A CN202110114249 A CN 202110114249A CN 112826007 A CN112826007 A CN 112826007A
- Authority
- CN
- China
- Prior art keywords
- propolis
- heavy metal
- mixed solution
- vibration
- vibration device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000241413 Propolis Species 0.000 title claims abstract description 81
- 229940069949 propolis Drugs 0.000 title claims abstract description 81
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 title claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 description 11
- 239000002244 precipitate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
- A23L5/21—Removal of unwanted matter, e.g. deodorisation or detoxification by heating without chemical treatment, e.g. steam treatment, cooking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention relates to the technical field of propolis processing, in particular to a device and a method for removing heavy metals from propolis mixed liquor; the device for removing the heavy metal from the propolis mixed liquid comprises a settling tank, wherein a heavy metal settling area is arranged below the settling tank, a plurality of discharge ports which are arranged up and down are arranged on the side surface of the heavy metal settling area, supporting legs are arranged below the settling tank, and a vibration device which is a first vibration device is arranged on the settling tank; the method for removing heavy metal from propolis mixed solution comprises vibrating propolis ethanol mixed solution in a propolis mixed solution heavy metal removing device for the first time, standing for the first time, and separating to remove the mixed solution containing heavy metal. Has the advantages of good heavy metal discharging effect and high heavy metal discharging efficiency.
Description
Technical Field
The invention relates to the technical field of propolis processing, in particular to a device for removing heavy metals from propolis mixed liquor and a method for removing heavy metals from the propolis mixed liquor.
Background
The purification process of propolis is as follows: (1) pulverizing propolis to obtain propolis powder; (2) mixing propolis powder with ethanol to obtain propolis ethanol mixed solution; (3) filtering the propolis mixed solution to obtain pure propolis ethanol solution; (4) recovering ethanol from the pure propolis ethanol solution to obtain pure propolis.
In the purification process, the original propolis, the propolis mixed solution and the pure propolis ethanol solution contain some heavy metals, and the removal of the heavy metals is a necessary condition for producing high-quality propolis.
Most of the raw propolis ethanol mixed liquor is removed at the stage, and the used equipment is a device for removing heavy metals from the propolis mixed liquor.
In the patent document with the publication number of CN204426590U and the application number of 201420838611.9, which is named as a height-adjustable propolis standing lead-removing settling tank, the height-adjustable propolis standing lead-removing settling tank comprises a settling tank, wherein the settling tank is provided with a standing lead-removing settling area, a lead-removing pipe and a lead-removing interface, the lower part of the settling tank is the standing lead-removing settling area, the standing lead-removing settling area is provided with a plurality of lead-removing interfaces, and the lead-removing interfaces are connected with the lead-removing pipe. The propolis can effectively precipitate heavy metals such as lead, and propolis with high heavy metal content at the bottom can be removed after standing and precipitating; the device for removing the heavy metals from the propolis mixed liquid has the defect of poor effect of removing the heavy metals, and cannot meet the requirement of producing high-quality propolis.
Disclosure of Invention
The invention aims to overcome the defects and provide a device and a method for removing heavy metals by propolis mixed liquor, wherein the device and the method have good heavy metal removing effect and high heavy metal removing efficiency.
The device for removing heavy metal from propolis mixed liquid adopts the technical scheme that: propolis mixes liquid and gets rid of heavy metal device, including the gunbarrel, the gunbarrel below be heavy metal settling zone, have a plurality of discharge ports that set up from top to bottom in heavy metal settling zone side, the gunbarrel below have landing leg, characterized by: and the vibration device is arranged on the settling tank and is a first vibration device, the frequency of the first vibration device is 10-15 Hz, and the amplitude of the vibration device is 1-1.5 mm.
Preferably, the method comprises the following steps: the frequency of the first vibration device is 13 hz, and the amplitude of the first vibration device is 1.2 mm.
Preferably, the method comprises the following steps: and the second vibration device is arranged on the settling tank and has the frequency of 20-25 Hz and the amplitude of 0.8-1 mm.
Preferably, the method comprises the following steps: the frequency of the second vibration device is 18 Hz, and the amplitude of the first vibration device is 0.9 mm.
Preferably, a damping spring is further mounted in the middle of the supporting leg.
Preferably, a heating pipeline is arranged around the settling tank.
Preferably, a transparent window is further installed around the settling tank.
The method for removing heavy metals by using the propolis mixed solution adopts the technical scheme that: the method for removing heavy metal from propolis mixed solution comprises the steps of vibrating the propolis ethanol mixed solution for the first time in a propolis mixed solution heavy metal removing device, standing for the first time, and separating and discharging the propolis mixed solution containing heavy metal to obtain the propolis mixed solution without heavy metal.
Preferably: the frequency of the first vibration is 10-15 Hz, the amplitude of the vibration device is 1-1.5 mm, and the first rest time is 150-200 minutes of standing.
Preferably, the method comprises the following steps: the first vibration frequency was 13 hz and the second vibration amplitude was 1.2 mm.
Preferably, the method comprises the following steps: the vibration device is characterized in that the vibration device also has secondary vibration and secondary standing after primary vibration and primary standing, the frequency of the second vibration device is 20-25 Hz, the amplitude of the vibration device is 0.8-1 mm, and the secondary standing time is 150-200 minutes.
Preferably, in the process of the first heavy metal sedimentation and/or the second heavy metal sedimentation, the propolis mixed solution is kept at the temperature of 60-70 ℃.
Preferably, the method comprises the following steps: and in the process of the first heavy metal sedimentation and/or the second heavy metal sedimentation, the propolis mixed solution is kept at the temperature of 65 ℃.
The invention has the beneficial effects that: the device and the method for removing the heavy metal by the propolis mixed liquid have the advantages of good effect of removing the heavy metal and high efficiency of removing the heavy metal.
Drawings
FIG. 1 is a schematic view of the device for removing heavy metals from propolis mixed solution according to the present invention.
FIG. 2 is a graph showing the relationship between temperature, vibration and standing time in the process of removing heavy metals from the propolis mixed solution of the present invention.
Wherein, the device comprises a settling tank 1, a settling tank 2, a heavy metal settling zone 3, a discharge port 4, a supporting leg 5, a first vibration device 6, a second vibration device 7, a damping spring 8, a heating pipeline 9 and a transparent window.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the device for removing heavy metal from propolis mixed liquid comprises a precipitation tank 1, a heavy metal precipitation zone 2 is arranged below the precipitation tank, a plurality of discharge ports 3 are arranged on the side surface of the heavy metal precipitation zone, and support legs 4 are arranged below the precipitation tank, and is characterized in that: and the vibration device is arranged on the settling tank and is a first vibration device 5, the frequency of the first vibration device is 10-15 Hz, and the amplitude of the vibration device is 1-1.5 mm.
The device is arranged in such a way, the propolis mixed liquid can make the material containing heavy metal precipitate and descend in vibration, can precipitate and gather in a heavy metal precipitation area as soon as possible, then the discharge port is opened, the propolis mixed liquid containing more heavy metal is discharged, and the propolis without heavy metal (purer) is obtained, so that the aim of the invention is fulfilled.
Preferably, the method comprises the following steps: the frequency of the first vibration device is 13 hz, and the amplitude of the first vibration device is 1.2 mm.
By the arrangement, the propolis containing larger and more heavy metals is more suitable for reduction.
And the vibration device is arranged on the settling tank and is a second vibration device 6, the frequency of the second vibration device is 20-25 Hz, and the amplitude of the vibration device is 0.8-1 mm.
This device sets up like this, can realize starting the second vibrating device when using the second vibrating device, the amplitude of second vibrating device is less to the frequency is higher, and easier and contain the less propolis granule of heavy metal and form resonance for the sediment of this part propolis reaches better promotion its sediment.
Preferably, the method comprises the following steps: the frequency of the second vibration device is 23 Hz, and the amplitude of the first vibration device is 0.9 mm.
By the arrangement, the propolis containing larger and more heavy metals is more suitable for reduction.
Preferably, a damping spring 7 is further installed in the middle of the supporting leg.
This can reduce the spread of vibration to the surroundings.
Preferably, a heating pipeline 8 is arranged around the settling tank.
This device sets up like this, can realize the heating to the gunbarrel, makes propolis mixed liquid operation under suitable temperature to reach the effect of better detach heavy metal, for example keep the gunbarrel temperature to be 60 ~ 70 ℃.
Preferably, a transparent window 9 is also arranged around the sedimentation tank.
Preferably, the device also comprises a control device, wherein the control device is connected with the first vibration device and the second vibration device, and the control device is used for starting the first vibration device for 60-80 minutes and then standing for 150-200 minutes; then starting a second vibration device, wherein the control device is that the second vibration device is started for 60-80 minutes and then stands for 150-200 minutes;
preferably, the control device is further connected with a heating pipeline, and the control device enables the heating pipeline to be heated to 60-70 ℃ and keeps warm.
Example 1
Standing the propolis mixed solution for 24 hr to obtain propolis (preferably propolis) with heavy metal removed, and measuring to obtain propolis containing heavy metal 45 ppm.
Example 2
Vibrating the propolis ethanol mixed solution in a propolis mixed solution heavy metal removal device, wherein the vibration frequency is 10-15 Hz, the vibration amplitude of the vibration device is 1-1.5 mm, standing for 150-200 minutes, separating and discharging the propolis mixed solution containing heavy metals to obtain pure propolis mixed solution, and measuring the content of the heavy metals to be 30-35 ppm.
Example 3
The propolis mixed solution in the embodiment 2 is subjected to vibration and standing for the first precipitation, and then subjected to secondary precipitation after the first precipitation is completed, wherein the secondary precipitation time is 60-80 minutes, and then standing for 150-200 minutes, the frequency of a secondary heavy metal precipitation vibration device is 20-25 Hz, the amplitude of the vibration device is 0.8-1 mm, and the content of heavy metal is 25-30 ppm.
Example 4
The above examples 2 and 3 are repeated, and the content of heavy metals is reduced by keeping the propolis mixture stable at 60-70 deg.C.
Example 5
The above examples 2 and 3 are repeated, and the propolis mixture is kept stable at 65 deg.C, so that the content of heavy metals is reduced, and the quality of propolis can be ensured.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the field of the present invention by those skilled in the art are covered within the scope of the present invention.
Claims (10)
1. Propolis mixes liquid and gets rid of heavy metal device, including the gunbarrel, the gunbarrel below be heavy metal settling zone, have a plurality of discharge ports that set up from top to bottom in the heavy metal side, the gunbarrel below have landing leg, characterized by: and the vibration device is arranged on the settling tank and is a first vibration device, the frequency of the first vibration device is 10-15 Hz, and the amplitude of the vibration device is 1-1.5 mm.
2. The device for removing heavy metals from propolis mixed solution according to claim 1, which is characterized in that: the frequency of the first vibration device is 13 hz, and the amplitude of the first vibration device is 1.2 mm.
3. The device for removing heavy metals from propolis mixed solution according to claim 1 or 2, which is characterized in that: and the second vibration device is arranged on the settling tank and has the frequency of 20-25 Hz and the amplitude of 0.8-1 mm.
4. The device for removing heavy metals from propolis mixed solution according to claim 1 or 2, which is characterized in that: the frequency of the second vibration device is 23 Hz, and the amplitude of the first vibration device is 0.9 mm; a damping spring is also arranged in the middle of the supporting leg; and transparent windows are also arranged around the settling tank.
5. The device for removing heavy metals from propolis mixed solution according to claim 1 or 2, which is characterized in that: and a heating pipeline is arranged around the settling tank.
6. The method for removing heavy metal from propolis mixed solution comprises vibrating propolis ethanol mixed solution in a propolis mixed solution heavy metal removing device for the first time, standing for the first time, and separating to remove the mixed solution containing heavy metal.
7. The method for removing heavy metals with the propolis mixture solution as claimed in claim 6, wherein: the frequency of the first vibration is 10-15 Hz, the amplitude of the vibration device is 1-1.5 mm, and the first rest time is 150-200 minutes of standing.
8. The method for removing heavy metals with the propolis mixture solution as claimed in claim 7, wherein: the vibration frequency of the second vibration is 23 Hz, the amplitude of the second vibration is 1.2 mm, and the second standing time is 150-200 minutes of standing.
9. The method for removing heavy metals with the propolis mixture solution as claimed in claim 8, wherein: and in the process of primary heavy metal sedimentation and/or secondary heavy metal sedimentation, the temperature of the propolis mixed solution is kept at 60-70 ℃.
10. The method for removing heavy metals with the propolis mixture solution as claimed in claim 8, wherein: and in the process of the first heavy metal sedimentation and/or the second heavy metal sedimentation, the propolis mixed solution is kept at the temperature of 65 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110114249.5A CN112826007A (en) | 2021-01-28 | 2021-01-28 | Device and method for removing heavy metals by propolis mixed liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110114249.5A CN112826007A (en) | 2021-01-28 | 2021-01-28 | Device and method for removing heavy metals by propolis mixed liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112826007A true CN112826007A (en) | 2021-05-25 |
Family
ID=75930840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110114249.5A Pending CN112826007A (en) | 2021-01-28 | 2021-01-28 | Device and method for removing heavy metals by propolis mixed liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112826007A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720817A (en) * | 2003-12-25 | 2006-01-18 | 南昌大学 | Combination use of absorption and ion exchange for removing lead from propolis |
| CN1868312A (en) * | 2005-05-25 | 2006-11-29 | 南京老山药业股份有限公司 | Process of high speed centrifugal removing lead from bee-glue |
| CN101061834A (en) * | 2006-04-29 | 2007-10-31 | 北京知蜂堂蜂产品有限公司 | Method of distilling and purifying of propolis and special equipment thereof |
| CN103549249A (en) * | 2013-10-11 | 2014-02-05 | 吕明 | Purification technology for propolis |
| CN103876013A (en) * | 2012-12-21 | 2014-06-25 | 吕艳 | Purification method of propolis |
| CN203723367U (en) * | 2014-01-21 | 2014-07-23 | 上海冠生园蜂制品有限公司 | Impurity separating device |
| CN204426590U (en) * | 2014-12-24 | 2015-07-01 | 南京老山药业股份有限公司 | Height adjustable propolis leaves standstill deleading settling tank |
| CN206910892U (en) * | 2017-05-13 | 2018-01-23 | 河南福美生物科技有限公司 | A kind of beeswax separator |
| CN108294270A (en) * | 2018-03-03 | 2018-07-20 | 贵阳学院 | A kind of extraction process of propolis |
-
2021
- 2021-01-28 CN CN202110114249.5A patent/CN112826007A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720817A (en) * | 2003-12-25 | 2006-01-18 | 南昌大学 | Combination use of absorption and ion exchange for removing lead from propolis |
| CN1868312A (en) * | 2005-05-25 | 2006-11-29 | 南京老山药业股份有限公司 | Process of high speed centrifugal removing lead from bee-glue |
| CN101061834A (en) * | 2006-04-29 | 2007-10-31 | 北京知蜂堂蜂产品有限公司 | Method of distilling and purifying of propolis and special equipment thereof |
| CN103876013A (en) * | 2012-12-21 | 2014-06-25 | 吕艳 | Purification method of propolis |
| CN103549249A (en) * | 2013-10-11 | 2014-02-05 | 吕明 | Purification technology for propolis |
| CN203723367U (en) * | 2014-01-21 | 2014-07-23 | 上海冠生园蜂制品有限公司 | Impurity separating device |
| CN204426590U (en) * | 2014-12-24 | 2015-07-01 | 南京老山药业股份有限公司 | Height adjustable propolis leaves standstill deleading settling tank |
| CN206910892U (en) * | 2017-05-13 | 2018-01-23 | 河南福美生物科技有限公司 | A kind of beeswax separator |
| CN108294270A (en) * | 2018-03-03 | 2018-07-20 | 贵阳学院 | A kind of extraction process of propolis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2975949B2 (en) | Method for protein extraction from oil seed | |
| CN104498560A (en) | Liquefaction process and liquefaction equipment of glucose syrup | |
| CN103232039A (en) | Silicon carbide filter cake cyclone purifying process | |
| CN104262491A (en) | Method for extracting high-purity starch by rice residues | |
| CN111149893B (en) | High-concentration precipitate-free concentrated tea juice production system and production process applying same | |
| CN112850758A (en) | Lithium extraction system and method for salt lake brine | |
| CN112826007A (en) | Device and method for removing heavy metals by propolis mixed liquid | |
| CN208436838U (en) | A kind of calcium hydroxide preparation tank | |
| CN103113910B (en) | Pretreatment method for raw material of coal-based needle coke | |
| CN102311496A (en) | Method for recovering alhumin from deposited components I+II+III from cold ethanol method | |
| CN102326669A (en) | Process for preparing white fish meal by dehydrating and degreasing at low temperature at one time | |
| CN106629731A (en) | Method for recycling and processing waste silicon mud | |
| CN104292198B (en) | During maltol produces, grignard is hydrolyzed two-phase laminated flow synthetic method and device | |
| CN105348362B (en) | Production method of gamma-oryzanol | |
| CN102241585B (en) | Process for purifying citric acid mother liquor | |
| CN102125162B (en) | Method for processing citric-acid fermented liquor | |
| CN218620731U (en) | Device for extracting sunflower wax from sunflower wax paste | |
| CN112826008A (en) | Device and method for removing heavy metals from fine propolis mixed solution | |
| CN105623837A (en) | Preparation method of sesame oil | |
| CN101812106B (en) | Refining method of betamethasone epoxy hydrolysate | |
| CN114989862B (en) | Serial denitrification process for vacuum degassing and mixing reaction powered refining separation | |
| CN215462448U (en) | Multistage titanium alloy propolis filter equipment | |
| CN111013234B (en) | Fine powder purification equipment for sweet potato powder fine processing | |
| CN204866708U (en) | Cable raw and other materials cleaning equipment | |
| CN215137545U (en) | Propolis filter equipment of meticulous grading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100192 3-38, 3 / F, 26 Houtun South Road, Haidian District, Beijing Applicant after: BEIJING AGRICULTURAL TECHNOLOGY YIJIAN BEE PRODUCTS Research Institute Address before: 461500 yijianfeng product research institute, east of future road, Weiwu Road industrial cluster, Changge City, Xuchang City, Henan Province Applicant before: BEIJING AGRICULTURAL TECHNOLOGY YIJIAN BEE PRODUCTS Research Institute |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100192 3-38, 3 / F, 26 Houtun South Road, Haidian District, Beijing Applicant after: BEIJING AGRICULTURAL TECHNOLOGY YIJIAN BEE PRODUCTS Research Institute Address before: 461500 yijianfeng product research institute, east of future road, Weiwu Road industrial cluster, Changge City, Xuchang City, Henan Province Applicant before: BEIJING AGRICULTURAL TECHNOLOGY YIJIAN BEE PRODUCTS Research Institute |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |