CN110079273A - A kind of degradable environment-friendly dust suppressant and preparation method thereof - Google Patents
A kind of degradable environment-friendly dust suppressant and preparation method thereof Download PDFInfo
- Publication number
- CN110079273A CN110079273A CN201910479999.5A CN201910479999A CN110079273A CN 110079273 A CN110079273 A CN 110079273A CN 201910479999 A CN201910479999 A CN 201910479999A CN 110079273 A CN110079273 A CN 110079273A
- Authority
- CN
- China
- Prior art keywords
- degradable environment
- dust suppressant
- friendly dust
- raw material
- parts
- 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.)
- Withdrawn
Links
- 239000000428 dust Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 229920000881 Modified starch Polymers 0.000 claims abstract description 18
- 229920002101 Chitin Polymers 0.000 claims abstract description 11
- 239000004368 Modified starch Substances 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 235000019426 modified starch Nutrition 0.000 claims abstract description 11
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 11
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 11
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 11
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims abstract description 8
- 235000010241 potassium sorbate Nutrition 0.000 claims abstract description 8
- 239000004302 potassium sorbate Substances 0.000 claims abstract description 8
- 229940069338 potassium sorbate Drugs 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 240000006108 Allium ampeloprasum Species 0.000 claims description 10
- 235000005254 Allium ampeloprasum Nutrition 0.000 claims description 10
- 241000196324 Embryophyta Species 0.000 claims description 10
- 235000009337 Spinacia oleracea Nutrition 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 241000219315 Spinacia Species 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 229920002261 Corn starch Polymers 0.000 claims description 5
- 239000008120 corn starch Substances 0.000 claims description 5
- 229940099112 cornstarch Drugs 0.000 claims description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 244000300264 Spinacia oleracea Species 0.000 claims 1
- 240000008042 Zea mays Species 0.000 claims 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims 1
- 235000005822 corn Nutrition 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- CHHHXKFHOYLYRE-STWYSWDKSA-M potassium sorbate Chemical group [K+].C\C=C\C=C\C([O-])=O CHHHXKFHOYLYRE-STWYSWDKSA-M 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RFTKDSUXTLVWOX-UHFFFAOYSA-N [Na].[Na].[Na].O Chemical compound [Na].[Na].[Na].O RFTKDSUXTLVWOX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a kind of degradable environment-friendly dust suppressants and preparation method thereof, belong to environmentally friendly dust suppression technology field.The degradable environment-friendly dust suppressant, is made of the raw material of following parts by weight: 30~50 parts of pre-gelatinized starch, 20~30 parts of modified starch adhesive, 2~4 parts of chitin, 0.02~0.04 part of potassium sorbate, 0.01~0.03 part of sodium benzoate, 10~30 parts of plant toner, 1000~2000 parts of water.The preparation process of the degradable environment-friendly dust suppressant are as follows: weigh each raw material by raw material composition, pre-gelatinized starch, modified starch adhesive, chitin, potassium sorbate, sodium benzoate, water are stirred to get degradable environment-friendly dust suppressant.Raw material environmental protection of the present invention, simple production process, crust effect is good, and anti-dust effect is significant, and is convenient for construction supervision.
Description
Technical field
The present invention relates to environmentally friendly dust suppression field, a kind of degradable environment-friendly dust suppressant and preparation method thereof is particularly related to.
Background technique
Country's dust suppressant, solid dust agent have emerged in large numbers many scientific achievements and document at present, such as: " one kind is anti-for Chinese invention patent
Wind erosion type road dust inhibitor ", number of patent application: 201810827612.6;" colorful environmental protection dust suppressant and preparation method thereof ", patent
Application number: 201710188717.7;" a kind of green dust agent and preparation method thereof admittedly ", number of patent application: 201810573413.7
Etc..These schemes are each has something to recommend him, and respectively have deficiency, such as: the complicated component that has, production technology are complicated;What is had cannot develop the color, no
Easily distinguish coverage condition, what is had is at high cost;Some is not environmentally friendly enough, cannot degrade and be not suitable for large area sprinkling, especially northern
Exposed farmland of regional winter.
Summary of the invention
The present invention provides a kind of degradable environment-friendly dust suppressant and preparation method thereof, preferably balances above-mentioned various technologies
Deficiency, be not only suitable for exposed construction site and be also suitable for exposed city vacant lot and exposed farmland.
The technical solution adopted by the present invention to solve the technical problems is: a kind of degradable environment-friendly dust suppressant, by with
The raw material of lower parts by weight forms:
The preparation process of the degradable environment-friendly dust suppressant are as follows: weigh each raw material by raw material composition, pre-gelatinized is formed sediment
Powder, modified starch adhesive, chitin, potassium sorbate, sodium benzoate, water are stirred to get degradable environment-friendly dust suppressant.
Further, degradable environment-friendly dust suppressant is made of the raw material of following parts by weight:
Further, the component of the modified starch adhesive and the preparation method comprises the following steps: cornstarch add water and stir uniformly, addition thousand
/ tri- sodium hydrate aqueous solution makes corn starch pasting, 49 DEG C~65 DEG C of gelatinization point, 100 times of water is being added to dilute, then plus
0.5% borax and 1% ethylene glycol, stir 20 minutes, stand 2 hours.
Further, the plant toner is spinach powder, and preparation method is as follows: spinach is cleaned, and takes leaf, abandons stalk,
Every kilogram of the leaf of spinach is put into 10 grams of salt, soaks in water 20 minutes, drains, into drying machine drying, 50 degree of temperature, and the time 8 hours,
Taking-up is put into pulverizer crushing, sieving.
Or, the plant toner is leek powder, preparation method is as follows: leek is cleaned, and white stalk, every kilogram of leek are cut away
Leaf is put into 10 grams of salt, soaks in water 20 minutes, drains, and into drying machine drying, 50 degree of temperature, the time 8 hours, taking-up was put into powder
Broken machine crushes, sieving.
The beneficial effects of the present invention are: raw material are food grade materials, simple production process is at low cost, degradable nothing
Secondary pollution, anti-dust effect are good.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, carried out below with reference to embodiment
Detailed description.
Embodiment 1
Degradable environment-friendly dust suppressant is made of the raw material of following parts by weight:
50 parts by weight of pre-gelatinized starch, 30 parts by weight of modified starch adhesive, 4 parts by weight of chitin, 0.04 weight of potassium sorbate
Part, 0.03 parts by weight of sodium benzoate, 30 parts by weight of plant toner, the plant toner select spinach powder or leek powder, water 2000
Parts by weight, it is the growth in order to effectively inhibit harmful bacteria that chitin, potassium sorbate and sodium benzoate are added in component, is prevented
Spray influence of the dust suppressant to plant growth.
The preparation process of the degradable environment-friendly dust suppressant are as follows: weigh each raw material by raw material composition, pre-gelatinized is formed sediment
Powder, chitin, potassium sorbate, sodium benzoate, is put into container and is thoroughly mixed modified starch adhesive, then. while stirring
Slowly plus 100 parts by weight water, it 25 DEG C of temperature, revolving speed 300rpm, the time 60 minutes, is then allowed to stand 8 hours, obtains concentration stock solution.
The stoste is filtered to bigger container, stirring again, adds 1900 parts by weight water to get the Degradable environment protection to required for constructing
Dust suppressant.The component of the modified starch adhesive and the preparation method comprises the following steps: cornstarch adds water and stirs uniformly, addition 3/1000ths
Sodium hydrate aqueous solution makes corn starch pasting, 49 DEG C -65 DEG C of gelatinization point, is adding 100 times of water dilutions, then plus 0.5% boron
Sand and 1% ethylene glycol, stir 20 minutes, stand 2 hours.The plant toner is spinach powder, and preparation method is as follows: spinach
Dish is cleaned, and leaf is taken, and abandons stalk, and every kilogram of the leaf of spinach is put into 10 grams of salt, soaks in water 20 minutes, drain, and is dried into dryer
Dry, 50 degree of temperature, the time 8 hours, taking-up was put into pulverizer crushing, sieving.Another selection of the plant toner
For leek powder, preparation method is as follows: leek dish is cleaned, and cuts away white stalk, every kilogram of leek leaf is put into 10 grams of salt, soaks in water
It 20 minutes, drains, into drying machine drying, 50 degree of temperature, the time 8 hours, taking-up was put into pulverizer crushing, sieving.
Embodiment 2
Degradable environment-friendly dust suppressant is made of the raw material of following parts by weight:
40 parts by weight of pre-gelatinized starch, 20 parts by weight of modified starch adhesive, 3 parts by weight of chitin, 0.02 weight of potassium sorbate
Part, 0.02 parts by weight of sodium benzoate, 20 parts by weight of plant toner, 1500 parts by weight of water.
The preparation process of the Degradable environment protection dust suppressant are as follows: weigh each raw material by raw material composition, by pre-gelatinized starch, change
Property amylan, chitin, potassium sorbate, sodium benzoate, be put into container and be thoroughly mixed, then slowly while stirring plus
100 parts by weight water, stand 8 hours, obtain concentration stock solution by 25 DEG C of temperature, revolving speed 300rpm, the time 60 minutes.Again by the original
Liquid is filtered to bigger container, and stirring adds 1400 parts by weight water to get degradable environment-friendly dust suppressant.
Embodiment 3
Degradable environment-friendly dust suppressant is made of the raw material of following parts by weight:
30 parts by weight of pre-gelatinized starch, 25 parts by weight of modified starch adhesive, 4 parts by weight of chitin, 0.02 weight of potassium sorbate
Part, 0.02 parts by weight of sodium benzoate, 20 parts by weight of plant toner, 1500 parts by weight of water.
The preparation process of the degradable environment-friendly dust suppressant are as follows: weigh each raw material by raw material composition, pre-gelatinized is formed sediment
Powder, chitin, potassium sorbate, sodium benzoate, is put into container and is thoroughly mixed modified starch adhesive, then. while stirring
Slowly plus 100 parts by weight water, 25 DEG C of temperature, revolving speed 300rpm, the time 60 minutes, 8 hours is stood, concentration stock solution is obtained.Again will
The stoste is filtered to bigger container, and stirring adds 900 parts by weight water to get degradable environment-friendly dust suppressant.
Using degradable environment-friendly dust suppressant embodiment 1, embodiment 2, embodiment 3 the 300 of Guan County construction site
Square metre exposed place carries out field test, and each 100 square meter of three embodiments obtains following effect: ground surface colour development after dry,
Surface is hard, and crust thickness is all larger than 5 millimeters, can effectively inhibit fugitive dust.99% is reduced through detection air particle.By
3 months wind and weathers, color still have, and ground is solid, and crust thickness increases.
Claims (5)
1. a kind of degradable environment-friendly dust suppressant, it is characterised in that: be made of the raw material of following parts by weight:
The preparation process of the degradable environment-friendly dust suppressant are as follows: weigh each raw material by raw material composition, by pre-gelatinized starch, change
Property amylan, chitin, potassium sorbate, sodium benzoate, water are stirred to get Degradable environment protection dust suppressant.
2. a kind of degradable environment-friendly dust suppressant according to claim 1, it is characterised in that: be by following parts by weight
Raw material composition:
。
3. a kind of degradable environment-friendly dust suppressant according to claim 1, it is characterised in that: the modified starch adhesive
Component and the preparation method comprises the following steps: cornstarch add water and stir uniformly, addition 3/1000ths sodium hydrate aqueous solution so that corn is formed sediment
Paste mixing, adds the dilution of 100 times of water by 49 DEG C -65 DEG C of gelatinization point, then plus 0.5% borax and 1% ethylene glycol, stir 20 points
Clock stands 2 hours.
4. a kind of degradable environment-friendly dust suppressant according to claim 1, it is characterised in that: the plant toner is
Spinach powder, preparation method are as follows: spinach is cleaned, and takes leaf, abandons stalk, and every kilogram of the leaf of spinach is put into 10 grams of salt, adds water logging
Bubble 20 minutes, drains, and into drying machine drying, 50 degree of temperature, the time 8 hours, taking-up was put into pulverizer crushing, sieving.
5. a kind of degradable environment-friendly dust suppressant according to claim 1, it is characterised in that: the plant toner is
Leek powder, preparation method are as follows: leek is cleaned, and cuts away white stalk, every kilogram of leek leaf is put into 10 grams of salt, soaks in water 20 points
Clock drains, and into drying machine drying, 50 degree of temperature, the time 8 hours, taking-up was put into pulverizer crushing, sieving.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910479999.5A CN110079273A (en) | 2019-06-04 | 2019-06-04 | A kind of degradable environment-friendly dust suppressant and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910479999.5A CN110079273A (en) | 2019-06-04 | 2019-06-04 | A kind of degradable environment-friendly dust suppressant and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110079273A true CN110079273A (en) | 2019-08-02 |
Family
ID=67423388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910479999.5A Withdrawn CN110079273A (en) | 2019-06-04 | 2019-06-04 | A kind of degradable environment-friendly dust suppressant and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110079273A (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10147601A (en) * | 1996-11-18 | 1998-06-02 | Chichibu Onoda Cement Corp | Suppressing agent for dust generation and hardening of fly ash, and suppression of dust generation and hardening of fly ash by using the same |
CN102093846A (en) * | 2010-12-23 | 2011-06-15 | 兰州天际环境保护有限公司 | Phosphorus ore dust suppressant composition and preparation method thereof |
CN103184034A (en) * | 2013-01-04 | 2013-07-03 | 北京阳光溢彩科技有限公司 | Ecological environment-friendly dust inhibitor |
CN103351479A (en) * | 2013-07-23 | 2013-10-16 | 甘肃圣大方舟马铃薯变性淀粉有限公司 | Preparation method of biomass dust suppression agent |
CN103980860A (en) * | 2014-05-27 | 2014-08-13 | 河北科技大学 | Environment-friendly superfine powder railway coal transportation and storage dust suppressant and preparation method |
CN104449578A (en) * | 2014-11-02 | 2015-03-25 | 中国矿业大学(北京) | Environment-friendly dust suppressant and preparation method thereof |
CN106701024A (en) * | 2017-02-21 | 2017-05-24 | 济南大学 | Road dust suppressant, and preparation and construction method thereof |
CN106893554A (en) * | 2017-02-28 | 2017-06-27 | 韦尧天 | The preparation technology and its application method of a kind of dust suppressant |
CN107446552A (en) * | 2017-09-01 | 2017-12-08 | 河南中环瑞达环保科技有限公司 | A kind of environment-friendly type is fixed the sand dust suppressant and its application method |
CN108192570A (en) * | 2018-01-22 | 2018-06-22 | 天津圣洁环保科技有限公司 | Dust suppressant and preparation method thereof, application method and application |
-
2019
- 2019-06-04 CN CN201910479999.5A patent/CN110079273A/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10147601A (en) * | 1996-11-18 | 1998-06-02 | Chichibu Onoda Cement Corp | Suppressing agent for dust generation and hardening of fly ash, and suppression of dust generation and hardening of fly ash by using the same |
CN102093846A (en) * | 2010-12-23 | 2011-06-15 | 兰州天际环境保护有限公司 | Phosphorus ore dust suppressant composition and preparation method thereof |
CN103184034A (en) * | 2013-01-04 | 2013-07-03 | 北京阳光溢彩科技有限公司 | Ecological environment-friendly dust inhibitor |
CN103351479A (en) * | 2013-07-23 | 2013-10-16 | 甘肃圣大方舟马铃薯变性淀粉有限公司 | Preparation method of biomass dust suppression agent |
CN103980860A (en) * | 2014-05-27 | 2014-08-13 | 河北科技大学 | Environment-friendly superfine powder railway coal transportation and storage dust suppressant and preparation method |
CN104449578A (en) * | 2014-11-02 | 2015-03-25 | 中国矿业大学(北京) | Environment-friendly dust suppressant and preparation method thereof |
CN106701024A (en) * | 2017-02-21 | 2017-05-24 | 济南大学 | Road dust suppressant, and preparation and construction method thereof |
CN106893554A (en) * | 2017-02-28 | 2017-06-27 | 韦尧天 | The preparation technology and its application method of a kind of dust suppressant |
CN107446552A (en) * | 2017-09-01 | 2017-12-08 | 河南中环瑞达环保科技有限公司 | A kind of environment-friendly type is fixed the sand dust suppressant and its application method |
CN108192570A (en) * | 2018-01-22 | 2018-06-22 | 天津圣洁环保科技有限公司 | Dust suppressant and preparation method thereof, application method and application |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1900124B (en) | Modified polysaccharides | |
CN1092236C (en) | Enzyme-contg. granulated substance and propn. process thereof | |
CN106634846A (en) | Pigmented sodium humate incrusting dust suppressant and preparation method thereof | |
CN110839507A (en) | Soil-rock mixed slope spray-seeding matrix and preparation method thereof | |
CN111073599B (en) | A Soil Quality-improving Environmental Protection Dust Suppressant | |
EP2017319A2 (en) | Leaching resistant pre-wetted deicer composition | |
CN106634845A (en) | Humic acid incrusting dust suppressant for barren greening and preparation method thereof | |
US8182714B2 (en) | Critical levels of glycerin balanced with salt fines for de-icing salt | |
CN107365522A (en) | Outstanding water-based inner wall paste putty of a kind of bin stability and preparation method thereof | |
CN110079273A (en) | A kind of degradable environment-friendly dust suppressant and preparation method thereof | |
CN102771336A (en) | Production method of square porous ecological nutrition pots | |
CN110922976A (en) | A salt-blocking agent for improving coastal saline soil for simulating soil self-improvement and repair and its preparation method and application | |
CN105198484B (en) | The method that cement blowing agent is prepared using fish scale | |
CN102826781A (en) | Waterfroof agent for cement mortar and its preparation method | |
CN104871675A (en) | Improved soil for slope greening spray seeding and preparation method of improved soil | |
CN105969371A (en) | Soil repairing agent by taking garden waste as main raw material | |
CN101400760B (en) | Inorganic, static electric binder composition, use thereof and method for the preparation of the binder composition | |
US9883653B2 (en) | Animal litter composition with multiple functionalities | |
CN104193500A (en) | Organic fertilizer capable of promoting absorption of strawberries to minerals and preparation method of organic fertilizer | |
CN107903822A (en) | A kind of liquid agricultural film coating and its preparation process | |
CN111153735A (en) | MCM (Multi-chip Module) load modified soil conditioner for saline-alkali soil and preparation method thereof | |
CN105967935A (en) | Acid soil conditioner | |
CN104151084B (en) | A kind of powder fertilizer auxiliary agent and application thereof | |
CN107500881A (en) | A kind of water holding controlled release fertilizer and preparation method thereof | |
CN105295845A (en) | Treatment agent for raise dust at open ground, preparation method and application thereof |
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 | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190802 |
|
WW01 | Invention patent application withdrawn after publication |