CN103341317B - Deodorant and its preparation method and application - Google Patents
Deodorant and its preparation method and application Download PDFInfo
- Publication number
- CN103341317B CN103341317B CN201310315280.0A CN201310315280A CN103341317B CN 103341317 B CN103341317 B CN 103341317B CN 201310315280 A CN201310315280 A CN 201310315280A CN 103341317 B CN103341317 B CN 103341317B
- Authority
- CN
- China
- Prior art keywords
- deodorant
- preparation
- active carbon
- specific area
- extrusion
- 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.)
- Active
Links
Abstract
The invention discloses a kind of deodorant and its preparation method and application, described deodorant is by metal oxide 2-55wt%; Alkaline earth compound 5-30wt%; Carrier 10-60wt%; Pore creating material 1-10wt%; Extrusion aid 2-5wt%; Binding agent 2-10wt% is prepared from; Preparation method is for mixing above-mentioned each material, and add suitable quantity of water, be placed in banded extruder kneading extrusion, in 50-200 DEG C of drying, 150-450 DEG C of roasting, to obtain final product; By it at temperature 10-100 DEG C, pressure 0.1-10Mpa, air speed is 100-10000h
-1condition under use.Greatly, Sulfur capacity is high, and one way Sulfur capacity is received and is greater than 30wt%, and the removal efficiencies such as COS, mercaptan, thioether and methyl disulfide are greater than 90%, remove benzene homologues and low-carbon (LC) hydrocarbons simultaneously for deodorant pore volume of the present invention and specific area; Preparation method's process is simple, pollution-free, cost is low.
Description
Technical field
The present invention relates to a kind of deodorant, particularly a kind of deodorant and its preparation method and application.
Background technology
Along with deepening continuously of process of industrialization, gases containing stench sulphureous gases is (as H
2s, COS, CS
2, mercaptan, thioether, methyl disulfide etc.), the discharge of benzene homologues and lower carbon number hydrocarbons, serious environment pollution and being detrimental to health.And at present, the administering method of industrial production to gases containing stench sulphureous gases has wet desulphurization, bioanalysis desulfurization, IVP charcoal absorption desulfurization, but there is power consumption greatly in wet desulphurization, and energy consumption is high, and controlled condition is harsh and produce the shortcomings such as secondary harmful substance; Bioanalysis desulfurization needs combine with wet desulphurization, and reaction time is long, severe reaction conditions, not easy to operate; IVP charcoal absorption desulfurization regeneration is more difficult, and has spent lye to produce.Generally by effluvium first through wet desulphurization, but effluvium is after wet desulphurization, still has the H of trace
2the existence of S, organic sulfur, hydro carbons and benzene homologues, wherein methyl disulfide is topmost organic sulphur components, sometimes containing CS
2with the organic sulfur of the forms such as mercaptan, thioether, thiophene.These organic sulfurs are the poisoning and main causes of inactivation of the catalyst active center such as methanation, ammonia synthesis.The normal temperature deodorant that major part industrial enterprise produces, the problems such as there is cost high, Sulfur capacity is low, difference of hardness, deodorising effect difference.Therefore require that deodorant has hardness good, Sulfur capacity is high, and cost is low, and gas purification degree is high, and deodorization applied range under normal temperature, the feature such as harmless easy to use, safe.
Summary of the invention
Based on this, the invention provides a kind of compound deodorant.
The concrete technical scheme solved the problems of the technologies described above is as follows:
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Described carrier is active carbon; The particle diameter of described active carbon is 100-800 order, and specific area is greater than 200m
2/ g.
Wherein in some embodiments, described deodorant is prepared from by the material of following weight percentage:
Wherein in some embodiments, the particle diameter of described active carbon is 500-800 order, and specific area is 500-1000m
2/ g.
Wherein in some embodiments, described metal oxide is CuO, Cu
2o, Fe
2o
3, ZnO, CaO, MgO, TiO
2, Al
2o
3, MnO
2, MoO
3, NiO or Co
2o
3in 1-5 kind.
Wherein in some embodiments, described alkaline earth compound is Na
2cO
3, K
2cO
3, NaHCO
3, KHCO
3, at least one in NaOH or KOH.
Wherein in some embodiments, described pore creating material is urea, PEG-1000, polybasic carboxylic acid or carbonic hydroammonium; Preferred urea.
Wherein in some embodiments, described extrusion aid is tar, lubricating oil, paraffin, talcum powder, stearic acid or sesbania powder; Preferred sesbania powder.
Wherein in some embodiments, described binding agent is cement, starch, Alumina gel, citric acid, pitch, polyvinyl alcohol or CMC; Preferred CMC.
Wherein in some embodiments, described deodorant is prepared from by the material of following weight percentage:
The particle diameter of described active carbon is 700-800 order, specific area 900-1000m
2/ g.
The present invention also provides a kind of preparation method of deodorant, comprises the steps:
(1) metal oxide, alkaline earth compound, carrier, pore creating material, extrusion aid and binding agent are mixed, obtain mixture;
(2) add water 25-50wt% in the mixture of step (1) gained, is placed in banded extruder kneading, extrusion, in 50-200 DEG C of dry 1-10 hour, then in 150-450 DEG C of roasting 1-6 hour, obtains final product;
Described deodorant is black column, and diameter is 1.5-5mm, and specific area is 100-500m
2/ g, pore volume 0.25-0.6cm
3/ g, bulk density is 0.5-0.9kg/L, and radial compressive resistance is 40-180N/cm.
Above-mentioned deodorant is applied to the purification of air containing odorant of different occasion, and serviceability temperature is 10-100 DEG C, and gaseous phase volume air speed is 100-10000h
-1, pressure is 0.1-10MPa.
Principle of the present invention is: active carbon has high specific area and good physical absorption performance, metal oxide, alkaline earth compound and H
2s and organic sulfur COS, C
2can there is chemical reaction in S etc., under micro water vapor existent condition, the H in the sulphion of neutralization reaction and sulfur-containing anion and raw material waste gas has occurred
2s, CH
3the reducible sulfurs such as SH constantly and in waste gas O
2reaction, the sulphur generated and deposition of sulfides are removed in active carbon hole, and the organic sulfurs such as mercaptan, thioether, methyl disulfide are converted into sulphur compound by physical absorption removes, deodorant of the present invention utilizes the dual absorption of physics and chemistry to reach the object of purifying sulfur-containing foul gas just.Reaction equation is as follows:
MO+H
2s=MS+H
2o (M represents metal)
MO+2RSH=（RS）
2M+H
2O
H
2S+1/2O
2=S+H
2O
A kind of deodorant of the present invention and its preparation method and application has the following advantages and beneficial effect:
(1) deodorant obtained by the present invention has larger pore volume and specific area, good degree of purification and higher Sulfur capacity, and deodorization reaction is fast; When passing into appropriate air, can partial continuous regenerate, namely deodorization reaction and regenerative response carry out simultaneously, and can improve deodorization efficiency.
(2) deodorant of the present invention is to H
2s removes precision and reaches below 0.01ppm, and this deodorant one way Sulfur capacity is received mass percent and is greater than 30%, is greater than 90% to the removal efficiency of the organic sulfurs such as COS, mercaptan, thioether, methyl disulfide, also can remove benzene homologues and low-carbon (LC) hydrocarbons simultaneously.
(3) having in oxygen atmosphere, deodorant of the present invention is not having sulfide substantially, if sulfide is once be adsorbed on surface, oxygen-bearing organic matter can be converted in time, avoids the dieseling caused because of the accumulation of sulfide (as FeS); Solve after iron content desulfurizing agent uses a period of time in the absence of oxygen simultaneously, have accumulated sulfide, when drawing off, because the oxidation of surface sulfide thing and spontaneous combustion cause the problem of exploding, namely deodorant security of the present invention is high.
(4) the present invention adopts chemical dry desulfurization, and described preparation method's process is simple, pollution-free, running energy consumption is little, cost is low, technology innovation and the feature such as physical and chemical adsorption two-way function, and productive rate is up to more than 80%.
Detailed description of the invention
The invention provides that a kind of deodorant security is good, cost is low, degree of purification is high, desulfuration efficiency is good, its preparation method is simple.For oxidizing atmosphere as the sulphur-containing substance absorption in air transforms, sulphur-containing substance is enrichment on deodorant, is catalyzedly immediately converted into oxygen containing sulfide, reaches the object removing stink.
Polybasic carboxylic acid described in the present invention refers to citric acid, oxalic acid or tartaric acid.
Described CMC refers to sodium carboxymethylcellulose, and English name is Sodium CarboxymethylCellulose;
Described PEG-1000 refers to cetomacrogol 1000;
Below with reference to specific embodiment, the present invention will be further described.
Embodiment 1
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: zinc oxide 25wt%;
Alkaline earth compound is: NaOH 5wt%, sodium carbonate 5wt%;
Carrier is: active carbon 55wt%, and the particle diameter of described active carbon is 120 orders, specific area 230m
2/ g;
Pore creating material is: oxalic acid 3wt%;
Extrusion aid is: lubricating oil 3wt%;
Binding agent is: CMC4wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed, obtain mixture;
(2) add water 35wt% in mixture, namely adds the water that gouache ratio is 35wt%, and be placed in banded extruder kneading, extrusion, under 80 DEG C of conditions dry 6 hours, and 400 DEG C of roastings 3 hours, obtain deodorant TC1.
Embodiment 2
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: aluminium oxide 10wt%, calcium oxide 5wt%, manganese oxide 10wt%, magnesia 10wt%, zinc oxide 10wt%;
Alkaline earth compound is: potassium hydroxide 5wt%;
Carrier is: active carbon 30wt%, and the particle diameter of described active carbon is 200 orders, specific area 386m
2/ g;
Pore creating material is: urea 5wt%;
Extrusion aid is: talcum powder 5wt%;
Binding agent is: polyvinyl alcohol 10wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 40wt% in mixture, namely adds the water that gouache ratio is 40wt%, and be placed in banded extruder kneading, extrusion, under 50 DEG C of conditions dry 6 hours, and 350 DEG C of roastings 4 hours, obtain deodorant TC2.
Embodiment 3
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: manganese dioxide 10wt%, titanium dioxide 10wt%, cupric oxide 10wt%;
Alkaline earth compound is: NaOH 5wt%;
Carrier is: active carbon 53wt%, and the particle diameter of described active carbon is 400 orders, specific area 402m
2/ g;
Pore creating material is: carbonic hydroammonium 2wt%;
Extrusion aid is: tar 2.5wt%;
Binding agent is: cement 7.5wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 50wt% in mixture, namely adds the water that gouache ratio is 50wt%, and be placed in banded extruder kneading, extrusion, and in 110 DEG C of dryings 1.5 hours, 250 DEG C of roastings 3.5 hours, obtained deodorant TC3.
Embodiment 4
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: calcium oxide 10wt%, nickel oxide 10wt%, iron oxide 5wt%;
Alkaline earth compound is: potassium hydroxide 15wt%;
Carrier is: active carbon 45wt%; The particle diameter of described active carbon is 500 orders, specific area 526m
2/ g;
Pore creating material is: PEG-10005wt%;
Extrusion aid is: stearic acid 3.5wt%;
Binding agent is: starch 6.5wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 45wt% in mixture, namely adds the water that gouache ratio is 45wt%, and be placed in banded extruder kneading, extrusion, and drying 3 hours under 100 DEG C of conditions, under 200 DEG C of conditions, roasting 2 hours, obtains deodorant TC4.
Embodiment 5
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: calcium oxide 20wt%, magnesia 10wt%;
Alkaline earth compound is: potassium hydroxide 18wt%;
Carrier is: active carbon 40wt%, and the particle diameter of described active carbon is 600 orders, specific area 680m
2/ g;
Pore creating material is: tartaric acid 2wt%;
Extrusion aid is: sesbania powder 3wt%;
Binding agent is: starch 7wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 42wt% in mixture, namely adds the water that gouache ratio is 42wt%, and be placed in banded extruder kneading, extrusion, and drying 1 hour under 200 DEG C of conditions, under 450 DEG C of conditions, roasting 3.5 hours, obtains deodorant TC5.
Embodiment 6
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: iron oxide 25wt%, zinc oxide 20wt%;
Alkaline earth compound is: potash 10wt%;
Carrier is: active carbon 30wt%, and the particle diameter of described active carbon is 800 orders, specific area 985m
2/ g;
Pore creating material is: urea 5wt%;
Extrusion aid is: sesbania powder 5wt%;
Binding agent is: CMC5wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 35wt% in mixture, namely adds the water that gouache ratio is 35wt%, and be placed in banded extruder kneading, extrusion, and drying 10 hours under 50 DEG C of conditions, under 250 DEG C of conditions, roasting 2 hours, obtains deodorant TC6.
Embodiment 7
A kind of deodorant, described deodorant is prepared from by the material of following weight percentage:
Metal oxide is: titanium dioxide 30wt%, cobalt sesquioxide 10wt%;
Alkaline earth compound is: sodium acid carbonate 15wt%;
Carrier is: active carbon 30wt%, and the particle diameter of described active carbon is 700 orders, specific area 862m
2/ g;
Pore creating material is: citric acid 4.5wt%;
Extrusion aid is: tar 2.5wt%;
Binding agent is: Alumina gel 8wt%;
The preparation method of described deodorant, comprises the steps:
(1) above-mentioned each material is mixed;
(2) add water 25wt% in mixture, namely adds the water that gouache ratio is 25wt%, and be placed in banded extruder kneading, extrusion, and drying 5 hours under 70 DEG C of conditions, under 300 DEG C of conditions, roasting 4.5 hours, obtains deodorant TC7.
The evaluation of embodiment 8 Sulfur capacity
One, evaluation method
By the deodorant that above-described embodiment 1-7 prepares, grind to form particle (40-60 order or 20-40 order) and be filled in the 1.5mL deodorization fixed bed that internal diameter is 6mm.Temperature be 10-100 DEG C, pressure is 0.1-10MPa, volume space velocity is 100-10000h
-1condition under, the foul gas containing certain mass concentration, nitrogen balance gas, through this fixed bed, evaluate the deodorising effect of deodorant, gained evaluation result is in table 1 and table 2.
Two, evaluation result
Contrast on effect result before and after the purification of table 1 deodorant
Table 2 deodorant experimental data
Table 1,2 is known, and prepared deodorant productive rate is high, can reach more than 80%, and pore volume, specific area are large, and hardness is high, and deodorization Sulfur capacity is good, and organic removal efficiency reaches more than 90%, and the deodorant prepared by embodiment 6 has large pore volume and specific area, is 800h in air speed
-1under condition, Sulfur capacity is 60%, shows to have high degree of purification and Sulfur capacity compared with the deodorant of large pore volume and specific area further, and therefore deodorant TC6 is best.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. a deodorant, is characterized in that, described deodorant is prepared from by the material of following weight percentage:
Described carrier is active carbon; The particle diameter of described active carbon is 500-800 order, and specific area is 500-1000m
2/ g; Described alkaline earth compound is Na
2cO
3, K
2cO
3, NaHCO
3, KHCO
3, at least one in NaOH or KOH; Described pore creating material is urea, PEG-1000, polybasic carboxylic acid or carbonic hydroammonium; Described polybasic carboxylic acid is citric acid, oxalic acid or tartaric acid.
2. deodorant according to claim 1, is characterized in that, described metal oxide is CuO, Cu
2o, Fe
2o
3, ZnO, CaO, MgO, TiO
2, Al
2o
3, MnO
2, MoO
3, NiO or Co
2o
3in 1-5 kind.
3. deodorant according to claim 1 and 2, is characterized in that, described extrusion aid is tar, lubricating oil, paraffin, talcum powder, stearic acid or sesbania powder.
4. deodorant according to claim 1 and 2, is characterized in that, described binding agent is cement, starch, Alumina gel, citric acid, pitch, polyvinyl alcohol or CMC.
5. deodorant according to claim 1, is characterized in that, described deodorant is prepared from by the material of following weight percentage:
The particle diameter of described active carbon is 700-800 order, specific area 900-1000m
2/ g.
6. the preparation method of deodorant according to any one of claim 1-5, is characterized in that, comprise the steps:
(1) metal oxide, alkaline earth compound, carrier, pore creating material, extrusion aid and binding agent are mixed, obtain mixture;
(2) add water 25-50wt% in the mixture of step (1) gained, is placed in banded extruder kneading, extrusion, in 50-200 DEG C of dry 1-10 hour, then in 150-450 DEG C of roasting 1-6 hour, obtains final product.
7. the application of the deodorant according to any one of claim 1-5, is characterized in that, the deodorant described in claim 1-5 is 10-100 DEG C in temperature, and gas volume air speed is 100-1000h
- 1, pressure is use under the condition of 0.1-10MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315280.0A CN103341317B (en) | 2013-07-24 | 2013-07-24 | Deodorant and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310315280.0A CN103341317B (en) | 2013-07-24 | 2013-07-24 | Deodorant and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103341317A CN103341317A (en) | 2013-10-09 |
| CN103341317B true CN103341317B (en) | 2015-08-26 |
Family
ID=49276170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310315280.0A Active CN103341317B (en) | 2013-07-24 | 2013-07-24 | Deodorant and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103341317B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549143A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Activated carbon desulfurization adsorbent and preparation method thereof |
| CN103785452B (en) * | 2014-02-20 | 2015-06-10 | 桂林理工大学 | Preparation method for catalyst capable of removing odor in domestic sludge drying tail gas |
| CN105312032A (en) * | 2014-06-20 | 2016-02-10 | 广州博能能源科技有限公司 | Deodorant and preparation method of same |
| CN104667860B (en) * | 2015-01-19 | 2017-01-11 | 宁波方太厨具有限公司 | Adsorbent and preparation method thereof |
| CN106031861A (en) * | 2015-03-19 | 2016-10-19 | 上海融熠投资管理有限公司 | Composite adsorbent |
| CN106582261A (en) * | 2015-10-14 | 2017-04-26 | 中国石油化工股份有限公司 | Deodorant for treatment of coking sewage pool stink, preparation method and application thereof |
| CN105561779A (en) * | 2016-03-09 | 2016-05-11 | 深圳市兴能保环境科技有限公司 | Catalytic oxidation desulfurizer for high concentration odor treatment and preparing method thereof |
| CN106345268B (en) * | 2016-10-19 | 2018-09-14 | 安徽祥源科技股份有限公司 | Except composition of mercaptans and the minimizing technology of mercaptan |
| CN111467936B (en) * | 2020-04-14 | 2022-03-15 | 石燕 | Desulfurizing agent, preparation method thereof and application thereof in treating sulfur-containing waste gas |
| CN115532002A (en) * | 2022-09-06 | 2022-12-30 | 湖南仁和环境股份有限公司 | Kitchen odor grading and enriching method |
| CN115318076A (en) * | 2022-10-14 | 2022-11-11 | 江苏福友化肥催化净化环保材料有限公司 | Preparation method of high-precision high-sulfur-capacity desulfurizer at normal temperature |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966625A (en) * | 2005-11-14 | 2007-05-23 | 成都华西化工研究所 | Normal temperature high activity high-sulfur accommodation high-strength desulfurizer production method |
-
2013
- 2013-07-24 CN CN201310315280.0A patent/CN103341317B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966625A (en) * | 2005-11-14 | 2007-05-23 | 成都华西化工研究所 | Normal temperature high activity high-sulfur accommodation high-strength desulfurizer production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103341317A (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103341317B (en) | Deodorant and its preparation method and application | |
| CA2088743C (en) | Absorption of hydrogen sulfide and absorbent composition therefor | |
| DK2438145T3 (en) | METHOD OF SULFURING A FUEL FLOW | |
| CN104069802A (en) | Gas desulfurization and adsorption composition, preparation method thereof and method for desulfurizing sulfurous gases | |
| CN101347718A (en) | Novel globular active carbon and use in desulfuration field | |
| CN104667872A (en) | High-efficiency deep desulfurization active carbon and preparation method thereof | |
| CN101462063B (en) | Desulfurizing agent for removing carbonyl sulfur, thiol and hydrogen sulphide by catalytic oxidation as well as preparation and application | |
| CN101352653B (en) | Low-temperature micro-oxygen purification method for removing harmful gas in yellow phosphorus tail gas | |
| CN102039086A (en) | Medium temperature iron-manganese desulfurizing agent and preparation method thereof | |
| RU2215571C2 (en) | Desulfurizer and a method for preparation thereof | |
| Wang et al. | Carbonyl sulfur removal from blast furnace gas: Recent progress, application status and future development | |
| CN1321169C (en) | Method for refining catalytic liquefied petroleum gas | |
| CN109847730A (en) | A kind of regeneration method of desulfuration adsorbent | |
| CN103506071A (en) | Purificant used for absorbing hydrogen sulfide and carbonyl sulfide in tail gas of natural gas and preparation method thereof | |
| BRPI0923954B1 (en) | PROCESS FOR THE DISPOSAL OF SULFURTED, NITROGEN AND HALOGENATED IMPURSENTS CONTAINED IN SYNTHESIS GAS | |
| CN102961959B (en) | Fine desulfurization agent of zinc oxide as well as preparation and application methods thereof | |
| CN103212389B (en) | Method for preparing gas organic sulfur refining removal adsorbent through using petroleum coke | |
| CN110144250A (en) | The preparation method of organic sulfur compound scavenger in a kind of fuel | |
| CN110201540B (en) | Process for removing methyl mercaptan from carbon dioxide gas | |
| CN100415344C (en) | Active carbon desulfurizing agent and application thereof | |
| CN103933927A (en) | Solid desulfurizing agent and preparation method thereof | |
| CN104560250B (en) | Cleanser and preparation method thereof | |
| CA2118492C (en) | Catalysts for the removal of sulfur compounds from industrial gases, a process for their production and their use | |
| CN105080487A (en) | Active carbon desulphurization adsorbent loaded with cobalt phthalocyanine sulfonate and copper and preparation method thereof | |
| CN1704144A (en) | Normal temperature ferric oxide desulfurizing agent and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220329 Address after: 276800 Rizhao Intelligent Manufacturing Industrial Park, Shenzhen West Road, Lanshan District, Rizhao City, Shandong Province Patentee after: Kangjian Technology (Shandong) Co.,Ltd. Address before: 510663 Guangzhou International Business Incubator d-102, No. 3, Juquan Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU BOXENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |