CN103708898A - Method for producing natural amino acid water-soluble fertilizer by utilizing tobacco liquid waste regenerated by paper-making process - Google Patents
Method for producing natural amino acid water-soluble fertilizer by utilizing tobacco liquid waste regenerated by paper-making process Download PDFInfo
- Publication number
- CN103708898A CN103708898A CN201410020970.8A CN201410020970A CN103708898A CN 103708898 A CN103708898 A CN 103708898A CN 201410020970 A CN201410020970 A CN 201410020970A CN 103708898 A CN103708898 A CN 103708898A
- Authority
- CN
- China
- Prior art keywords
- amino acid
- waste liquid
- natural amino
- papermaking
- water
- 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.)
- Granted
Links
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a method for producing natural amino acid water-soluble fertilizer by utilizing tobacco liquid waste regenerated by a paper-making process. The method comprises the following steps: filtering and separating the tobacco liquid waste regenerated by the paper-making process, wherein the granularity of a filtering net is 40-60 meshes; adding 0.3-0.6 percent of protease and 10-20 percent of feed grade protein powder into the liquid waste at a mass ratio, feeding the mixture into a constant temperature reactor, and performing fermentation reaction at a temperature of 33-38 DEG C for 5-20 days, thereby obtaining a fermented product, and the like. The method is simple and low in production cost, the obtained product is the natural amino acid fertilizer, and after the fertilizer is applied, the crop growth can be promoted, and the soil structure is improved. The problems that the wastewater treatment cost is high, the discharge amount is large and environmental pollution is caused in the process of producing the regenerated tobaccos by the paper-making process are solved.
Description
Technical field
The present invention relates to biological organic water-soluble fertilizer preparation method technical field, be specially the method for utilizing papermaking-method reconstituted tobaccos waste liquid to produce water-soluble fertilizer.
Background technology
Papermaking-method reconstituted tobaccos also claims tobacco sheet, is a kind of a kind of like smoke product that tobacco byproduct and dead meal make after modern extraction and separation technology improves in conjunction with traditional paper-making technology as basic substance adopts of take.This type of tobacco material is except having general agriculture production resistates contained a large amount of organic matters and micro-element nutrition salt, also be rich in abundant Threonine and tryptophane, after process extraction concentration technique, this part nutritive substance is transferred to produce in extracting solution and is returned and be added on tobacco sheet substrate as fragrance matter.Yet in actual production, can not accomplish complete backfill, a part of extracting solution will enter follow-up water technology as producing waste liquid.Therefore, the extracting solution that on the one hand leaching process produces can not complete-reclaiming in reconstituted tobacco production process, cause the waste of resource; On the other hand, as producing waste liquid, to enter BOD, COD that water technology causes producing waste liquid all very high, and treatment cost of waste liquor is higher, seriously restricts the Sustainable development of Liao Ge reconstituted tobacco manufacturing enterprise.
Amino acid water-soluble fertilizer is a kind of new-type fertilizer that contains amino acids material, is also a kind of multifunctional fertilizers.Can contain one or more amino acid; also can carry out arranging raw material for need of production or Technology Need, conventional is Threonine, L-glutamic acid, glycine, phenylalanine, methionine(Met), aspartic acid, proline(Pro), Isoleucine, arginine, taurine, Gamma Amino Butyric Acid etc.Polyglutamic acid, poly-aspartic-acid etc. are class of amino acid polymkeric substance, its in solution, be hydrolyzed or Crop after can be hydrolyzed to amino acid, there is amino acid whose essential property and effect.Under standard state, be that form with amino acid salts or free acid exists.Research shows, poly aspartic acid can be strengthened the comprehensive absorption of crop to nitrogen, phosphorus, potassium and middle trace element, improves utilization rate of fertilizer, promotes growth, increases output, improves crop quality, promotes root growth, strengthens resistance and improvement soil.The water-soluble fertilizer of amino acid is generally to add the liquid or solid fertilizer that one or more amino acid starting materials or stoste are made.
In papermaking-method reconstituted tobaccos waste liquid, containing farm crop and produce required various elements and abundant Threonine and tryptophane, is the good raw material of producing the molten fertilizer of natural amino acid sour water.It was both made full use of and can reduce the pollution to environment, can reduce again the waste of resource, also can obtain the amino acid water-soluble fertilizer of high added value.Therefore study a kind of method of utilizing papermaking-method reconstituted tobaccos waste liquid to produce the water-soluble fertilizer of natural amino acid, there is very positive meaning.
Summary of the invention
The object of the invention is to produce required various elements and abundant Threonine and the characteristic of tryptophane for containing farm crop in problem that at present both at home and abroad papermaking-method reconstituted tobaccos industrial enterprise production treatment cost of waste liquor is high and papermaking-method reconstituted tobaccos waste liquid, a kind of method of utilizing reconstituted tobacco waste liquid to produce natural amino acid fertilizer is provided.
Object of the present invention is achieved through the following technical solutions.
Utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for the water-soluble fertilizer of natural amino acid, method steps is as follows:
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 40-60 order; Described papermaking-method reconstituted tobaccos waste liquid can be extraction section, evaporation concentration section, coating section that reconstituted tobacco produces, the manufacture paper with pulp waste liquid of any one section of generation in profiled section or the two or more mixed waste liquors of producing section wherein;
B) in the waste liquid obtaining to step a) in mass ratio, add proteolytic enzyme, the 10%-20% feed grade protein powder of 0.3-0.6%, send in isothermal reactor, leavening temperature is at 33 ℃-38 ℃, and reaction times 5-20 days, obtains fermented product;
C) in the fermented product preparing to step b) in mass ratio, add 5%-10% water-soluble calcium, and mixing and stirring;
D) material step c) being obtained carries out filtering separation again, and filtering mesh number is 40-60 order; The liquid phase that filtering separation obtains is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, and in enriched material, solid content is at 20%-35%;
E) enriched material oven drying at low temperature step d) being obtained, to moisture content 20 ± 2%, is sent into tablets press and is granulated;
F) particle diameter step e) being prepared at the particle drying of 1-4 mm to moisture content lower than 4%.
Water-soluble calcium of the present invention is one or more mixture of chelating calcium, calcium formiate, nitrocalcite.Described proteolytic enzyme is commercially available proteolytic enzyme, and described feed grade protein powder is one or more the mixture in beans Hectometer, fish meal, dried silkworm chrysalis meal.
Useful benefit of the present invention is:
1, raw material sources are extensive.Papermaking-method reconstituted tobaccos waste liquid turnout is large, can meet quantity-produced demand, can solve again the problem of current amino acid fertilizer raw materials for production shortage.
2, the product obtaining is natural amino acid fertilizer, after application, can promote plant growth, and improves Soil structure.
3, method is simple, and production cost is low, is easy to promote to promote the use of.
4, can solve papermaking-method reconstituted tobaccos production process cost for wastewater treatment high, quantity discharged is large, the problem to environment.
Embodiment
Embodiment 1
Collect the water-soluble fertilizer of waste liquid production natural amino acid that certain enterprise produces in papermaking-method reconstituted tobaccos is produced, concrete steps are as follows:
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 40 orders; Describedly get that papermaking-method reconstituted tobaccos waste liquid can be extraction section, evaporation concentration section, coating section that reconstituted tobacco produces, the manufacture paper with pulp waste liquid of any one section of generation in profiled section or the two or more mixed waste liquors of producing section wherein;
B) in the waste liquid obtaining to step a) in mass ratio, add 0.3% proteolytic enzyme, 10% feed grade protein powder, send in isothermal reactor, leavening temperature is at 33 ℃-38 ℃, reaction times 5-20 days; Described proteolytic enzyme be commercially available proteolytic enzyme as papoid, feed grade protein powder can be the mixture of beans Hectometer, fish meal, wherein one or more of dried silkworm chrysalis meal;
C) in the fermented product obtaining to step b) in mass ratio, add 10% water-soluble calcium (wherein 5% calcium formiate, 5% nitrocalcite), and mixing and stirring;
D) material step c) being obtained carries out filtering separation again, and filtering mesh number is 40 orders; The liquid phase that filtering separation obtains is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, effect vacuum tightness 0.05 Mpa, and 65 ℃ of temperature, two effect vacuum tightness 0.08 Mpa, 60 ℃ of temperature, in the enriched material obtaining, solid content is being 35%(g/g);
E) enriched material oven drying at low temperature step d) being obtained, to moisture content 20 ± 2%, is sent into tablets press and is granulated;
F) particle diameter step e) being prepared at the particle drying of 1-4 mm to moisture content lower than 4%.
The water-soluble fertile performance of amino acid that the present embodiment prepares is in Table 1.
Embodiment 2
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 50 orders; The described papermaking-method reconstituted tobaccos waste liquid of getting is the waste liquid that extraction section that reconstituted tobacco is produced produces;
B) in mass ratio to the proteolytic enzyme, the 15% feed grade protein powder that add 0.45% in waste liquid, send in isothermal reactor, leavening temperature is at 33 ℃-38 ℃, reaction times 5-20 days; Proteolytic enzyme is commercially available papoid, and feed grade protein powder is dried silkworm chrysalis meal;
C) in the fermented product obtaining to step b) in mass ratio, add 8% water-soluble calcium calcium formiate, and mixing and stirring;
D) material step c) being obtained carries out filtering separation again, and filtering mesh number is 50 orders; The liquid phase that filtering separation obtains is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, effect vacuum tightness 0.05 Mpa, and 65 ℃ of temperature, two effect vacuum tightness 0.08 Mpa, 60 ℃ of temperature, in enriched material, solid content is 20%;
E) enriched material oven drying at low temperature step d) being obtained, to moisture content 20 ± 2%, is sent into tablets press and is granulated;
F) particle diameter step e) being prepared at the particle drying of 1-4 mm to moisture content lower than 4%.
The water-soluble fertile performance of amino acid that the present embodiment prepares is in Table 1.
Embodiment 3
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 60 orders; The described papermaking-method reconstituted tobaccos waste liquid of getting can be waste liquid and the mixed waste liquor that reconstituted tobacco the coating section of producing and the profiled section of manufacturing paper with pulp produce;
B) in the mixed waste liquor obtaining to step a) in mass ratio, add the mixture of 0.6% commercially available proteolytic enzyme, 20% beans Hectometer and fish meal, send in isothermal reactor, leavening temperature is at 33 ℃-38 ℃, reaction times 5-20 days;
C) in the fermented product obtaining to step b) in mass ratio, add 5% water-soluble calcium chelating calcium, and mixing and stirring;
D) material step c) being obtained carries out filtering separation again, and filtering mesh number is 60 orders; The liquid phase that filtering separation obtains is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, effect vacuum tightness 0.05 Mpa, and 65 ℃ of temperature, two effect vacuum tightness 0.08 Mpa, 60 ℃ of temperature, in enriched material, solid content is 28%;
E) enriched material oven drying at low temperature step d) being obtained, to moisture content 20 ± 2%, is sent into tablets press and is granulated;
F) particle diameter step e) being prepared at the particle drying of 1-4 mm to moisture content lower than 4%.
The amino acid fertilizer performance that the present embodiment obtains is in Table 1.
Table 1 papermaking-method reconstituted tobaccos waste liquid is produced the performance of the water-soluble fertilizer of natural amino acid
From table 1, can see the water-soluble fertile conformance with standard requirement of amino acid that the inventive method prepares.
Various device used and device in the inventive method, as filter plant, cryogenic vacuum thickening equipment, isothermal reaction container tablets press, drying plant etc., all can adopt prior art equipment.
The inventive method has not only solved the high problem of reconstituted tobacco manufacturing enterprise production treatment cost of waste liquor, has reduced environmental pollution, also for agriculture production provides a kind of novel amino acid water-soluble fertilizer.
Claims (3)
1. utilize papermaking-method reconstituted tobaccos waste liquid to produce the method for the water-soluble fertilizer of natural amino acid, it is characterized in that, method steps is as follows:
A) get papermaking-method reconstituted tobaccos waste liquid and carry out filtering separation, filtering mesh number is 40-60 order; Described papermaking-method reconstituted tobaccos waste liquid can be extraction section, evaporation concentration section, coating section that reconstituted tobacco produces, the manufacture paper with pulp waste liquid of any one section of generation in profiled section or the two or more mixed waste liquors of producing section wherein;
B) in the waste liquid obtaining to step a) in mass ratio, add proteolytic enzyme, the 10%-20% feed grade protein powder of 0.3-0.6%, send in isothermal reactor, leavening temperature is at 33 ℃-38 ℃, and reaction times 5-20 days, obtains fermented product;
C) in the fermented product preparing to step b) in mass ratio, add 5%-10% water-soluble calcium, and mixing and stirring;
D) material step c) being obtained carries out filtering separation again, and filtering mesh number is 40-60 order; The liquid phase that filtering separation obtains is sent into thickening equipment, and to carry out cryogenic vacuum concentrated, and in enriched material, solid content is at 20%-35%;
E) enriched material oven drying at low temperature step d) being obtained, to moisture content 20 ± 2%, is sent into tablets press and is granulated;
F) particle diameter step e) being prepared at the particle drying of 1-4 mm to moisture content lower than 4%.
2. the method for utilizing papermaking-method reconstituted tobaccos waste liquid to produce the water-soluble fertilizer of natural amino acid according to claim 1, is characterized in that, described water-soluble calcium is one or more mixture of chelating calcium, calcium formiate, nitrocalcite.
3. the method for utilizing papermaking-method reconstituted tobaccos waste liquid to produce the water-soluble fertilizer of natural amino acid according to claim 1, it is characterized in that, described proteolytic enzyme is commercially available proteolytic enzyme, and described feed grade protein powder is one or more the mixture in beans Hectometer, fish meal, dried silkworm chrysalis meal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020970.8A CN103708898B (en) | 2014-01-17 | 2014-01-17 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for natural amino acid Water soluble fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020970.8A CN103708898B (en) | 2014-01-17 | 2014-01-17 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for natural amino acid Water soluble fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103708898A true CN103708898A (en) | 2014-04-09 |
| CN103708898B CN103708898B (en) | 2015-10-14 |
Family
ID=50402291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020970.8A Active CN103708898B (en) | 2014-01-17 | 2014-01-17 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for natural amino acid Water soluble fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103708898B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399461A (en) * | 2015-12-14 | 2016-03-16 | 普洱国康种植产业集团有限责任公司 | Aqueous organic fertilizer, preparation method and applications |
| CN106418659A (en) * | 2016-11-18 | 2017-02-22 | 江西中烟工业有限责任公司 | Method for improving sensory quality of tobacco sheet |
| CN109180292A (en) * | 2018-08-07 | 2019-01-11 | 广西博世科环保科技股份有限公司 | Utilize the method for reconstituted tobacco concentrating spent liquor production full-service fluid amino acid water-soluble fertilizer |
| CN113731135A (en) * | 2021-11-04 | 2021-12-03 | 北京锦绣新技术发展有限公司 | Carbon dioxide trapping agent for preparing fertilizer from amino acid waste liquid |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328983A (en) * | 2000-06-16 | 2002-01-02 | 广西化工生物技术研究所 | Amino acid composite liquid fertilizer |
| CN1460663A (en) * | 2003-05-20 | 2003-12-10 | 何孝金 | Preparation method of amino acid foliage fertilizer |
| CN1621393A (en) * | 2003-11-28 | 2005-06-01 | 卢卫江 | Minim calcium element chelated foliage fertilizer |
| CN102219582A (en) * | 2011-05-10 | 2011-10-19 | 昆明春叶塑料制成品有限公司 | Method for producing humic acid organic fertilizer by adopting tobacco waste |
| CN102260106A (en) * | 2010-05-26 | 2011-11-30 | 山西凯盛肥业有限公司 | Amino acid and secondary calcium element water-soluble fertilizer and preparation method thereof |
| CN102260107A (en) * | 2010-05-25 | 2011-11-30 | 陈士安 | Production method of amino acid organic secondary and micro-element fertilizer |
| CN102531785A (en) * | 2012-01-06 | 2012-07-04 | 云南金星化工有限公司 | Method for producing biogenic insecticide fertilizer by abandoned tobacco |
| CN102887754A (en) * | 2012-11-05 | 2013-01-23 | 师宗海利食品有限责任公司 | Process for producing marsh gas and bioorganic fertilizer by utilizing tobacco waste |
| CN102924183A (en) * | 2012-09-10 | 2013-02-13 | 上海聚华科技股份有限公司 | Method for preparing organic fertilizer through tobacco extracting solution |
| CN103483044A (en) * | 2013-09-18 | 2014-01-01 | 句容市植保植检站 | Calcium-rich organic liquid fertilizer and preparation method thereof |
-
2014
- 2014-01-17 CN CN201410020970.8A patent/CN103708898B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328983A (en) * | 2000-06-16 | 2002-01-02 | 广西化工生物技术研究所 | Amino acid composite liquid fertilizer |
| CN1460663A (en) * | 2003-05-20 | 2003-12-10 | 何孝金 | Preparation method of amino acid foliage fertilizer |
| CN1621393A (en) * | 2003-11-28 | 2005-06-01 | 卢卫江 | Minim calcium element chelated foliage fertilizer |
| CN102260107A (en) * | 2010-05-25 | 2011-11-30 | 陈士安 | Production method of amino acid organic secondary and micro-element fertilizer |
| CN102260106A (en) * | 2010-05-26 | 2011-11-30 | 山西凯盛肥业有限公司 | Amino acid and secondary calcium element water-soluble fertilizer and preparation method thereof |
| CN102219582A (en) * | 2011-05-10 | 2011-10-19 | 昆明春叶塑料制成品有限公司 | Method for producing humic acid organic fertilizer by adopting tobacco waste |
| CN102531785A (en) * | 2012-01-06 | 2012-07-04 | 云南金星化工有限公司 | Method for producing biogenic insecticide fertilizer by abandoned tobacco |
| CN102924183A (en) * | 2012-09-10 | 2013-02-13 | 上海聚华科技股份有限公司 | Method for preparing organic fertilizer through tobacco extracting solution |
| CN102887754A (en) * | 2012-11-05 | 2013-01-23 | 师宗海利食品有限责任公司 | Process for producing marsh gas and bioorganic fertilizer by utilizing tobacco waste |
| CN103483044A (en) * | 2013-09-18 | 2014-01-01 | 句容市植保植检站 | Calcium-rich organic liquid fertilizer and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐永建: "烟草废次物综合利用研究进展", 《陕西科技大学学报》 * |
| 马迅等: "造纸法再造烟叶生产废弃物的处理与利用", 《环境科学与技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399461A (en) * | 2015-12-14 | 2016-03-16 | 普洱国康种植产业集团有限责任公司 | Aqueous organic fertilizer, preparation method and applications |
| CN106418659A (en) * | 2016-11-18 | 2017-02-22 | 江西中烟工业有限责任公司 | Method for improving sensory quality of tobacco sheet |
| CN109180292A (en) * | 2018-08-07 | 2019-01-11 | 广西博世科环保科技股份有限公司 | Utilize the method for reconstituted tobacco concentrating spent liquor production full-service fluid amino acid water-soluble fertilizer |
| CN113731135A (en) * | 2021-11-04 | 2021-12-03 | 北京锦绣新技术发展有限公司 | Carbon dioxide trapping agent for preparing fertilizer from amino acid waste liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103708898B (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102701873B (en) | Method for preparing compound fertilizer-conserving nutritional soil from anaerobic fermentation residue | |
| CN103664257B (en) | Preparation method of biogas slurry cured organic fertilizer | |
| CN103708898B (en) | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for natural amino acid Water soluble fertilizer | |
| CN105000993A (en) | High-permeability liquid fertilizer and preparing method thereof | |
| CN107353063A (en) | The method that biological compound liquid fertilizer is prepared using corn steep liquor | |
| CN104355806A (en) | Method for producing composite fertilizer for sugarcanes through waste residues of sisal hemp | |
| CN105084952A (en) | Preparing method for converting chicken dung into refined water-solubility organic fertilizers | |
| CN103204713A (en) | Method for promoting high efficiency decomposition of enteromorpha powder by using enzymatically hydrolyzed sea-tangle residues and application of product | |
| CN103708892A (en) | Production method of amino acid secondary element fertilizer | |
| CN103896659B (en) | A kind ofly utilize sugar refinery, grain distillery, Gourmet Powder Factory, the humic acid type fluid of yeast factory waste or SOLID ORGANIC fertilizer composition | |
| CN101381247B (en) | Sulphate-potassium magnesium fertilizer and preparation method thereof | |
| CN103896660B (en) | A kind of humic acid type fluid Chemical Mixed Fertilizer composition utilizing sugar refinery, grain distillery, Gourmet Powder Factory, yeast factory waste | |
| CN102219564B (en) | Organic potash fertilizer and production method thereof | |
| CN105175053A (en) | Preparation method for soilless culture substrate used for succulent flower | |
| CN109384530A (en) | A method of liquid fertilizer is extracted using banana dasheen waste water | |
| CN105601381A (en) | Slow-release nutritional fertilizer using black liquid as raw material and preparation method of slow-release nutritional fertilizer | |
| CN104211532B (en) | A kind of method utilizing furfural dregs and furfural waste-water to prepare liquid soil improvement agent | |
| CN110818489A (en) | Preparation method of flush-applied bio-organic fertilizer | |
| CN104725162A (en) | Urea formaldehyde controlled-release fertilizer | |
| CN103601575A (en) | Purple sweet potato special compound fertilizer suitable for acid soil in the south | |
| CN104355805B (en) | Folium Agaves Sisalanae waste residue produces the method for Oryza sativa L. fertilizer | |
| CN103613445A (en) | Granular bio-fertilizer and preparation method thereof | |
| CN103708899B (en) | Method for producing natural humic acid water-soluble fertilizer by using paper-making method reconstituted tobacco waste liquid | |
| CN104892054A (en) | Method for production of active phosphate fertilizer from microbial agent and molasses alcohol waste liquid | |
| CN106045651B (en) | A kind of fishing fertilizer prepared based on silk reeling wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Shuifu Inventor before: Wu Shuifu Inventor before: Yin Zengsong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WU SHUIFU YIN ZENGSONG TO: WU SHUIFU |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |