CN102239794B - Process for producing environmentally-friendly full-degradable liquid mulch film capable of turning into fertilizer by using coal humic acid - Google Patents
Process for producing environmentally-friendly full-degradable liquid mulch film capable of turning into fertilizer by using coal humic acid Download PDFInfo
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- CN102239794B CN102239794B CN 201110092937 CN201110092937A CN102239794B CN 102239794 B CN102239794 B CN 102239794B CN 201110092937 CN201110092937 CN 201110092937 CN 201110092937 A CN201110092937 A CN 201110092937A CN 102239794 B CN102239794 B CN 102239794B
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Abstract
The invention provides a method for producing an environmentally-friendly full-degradable liquid mulch film capable of turning into a fertilizer by using coal humic acid. The process comprises the following steps: finely selecting weathered coal, brown coal, peat or rogued turf, removing impurities, and then adding the coal into a crusher and crushing the coal into coal powder with the grain size of 100-150 meshes; adding raw materials into a reaction kettle in a raw material weight ratio of coal powder to potassium hydroxide to potassium carbonate to water equal to (100-120):(0.2-0.7):(0.2-0.6):(200-320), stirring, heating the mixture, standing for settling, and then taking liquid supernatant, thereby acquiring a potassium humate solution; and enabling raw materials to react in a raw material weight ratio of potassium humate solution to boric acid to potassium silicate to cellulose to cross-linking agent to water to propylene glycol monomethyl etheracetate to ammonium nitrate equal to (10-12):(1.8-2.5):(1.2-1.7):(0.15-0.17):(0.25-0.27):(20-30):(0.2-0.3):(0.1-0.2), thereby generating the environmentally-friendly full-degradable liquid mulch film capable of turning into the fertilizer. The process provided by the invention is used for producing the environmentally-friendly full-degradable liquid mulch film by using coal humic acid. After being used, the liquid mulch film is free from being cleared away and is turned into the fertilizer which is absorbed by crops, thereby solving the 'plastic pollution' problem of plastic mulch films.
Description
Technical field
The invention belongs to a kind of method that turns solution attitude mulch film with coal humic acid production environmental-protection fully-degradable.
Background technology
The effect that oneself widely used plastic film has heat absorption to heat, preserve soil moisture, keep a full stand of seedings, improve crop yield, but the plastic film after using can't degrade, and then do not live forever in soil if do not remove, and stops the crop root part growing, the reduction crop yield." white pollution " problem that causes for plastic film is in the urgent need to address, relies on artificial the removing to waste time and energy, and it is also undesirable to remove effect.Coal humic acid is a kind of natural organic high molecular compound, is that a kind of multi-functional chemical materials has widely industry and agricultural use, is used in a large number the aspects such as forestry, animal husbandry and medicine.Humic acid is rich in almost trace element and more than the ten kind of rare elements such as whole amino acid, multiple enzyme, carbohydrate, protein, nucleic acid, carotin, VC and the macroelement potassium of growing required, calcium, magnesium, sulphur, zinc, manganese, copper, iron, molybdenum, boron required in the growing process, but traditional extraction process is comparatively complicated, recovery rate is low, extraction cost is high, contaminated environment.
Summary of the invention
The purpose of this invention is to provide a kind of method that turns solution attitude mulch film with coal humic acid production environmental-protection fully-degradable, can produce the environmental-protection fully-degradable liquid-state mulch film by enough coal humic acids, and exempt from after this liquid-state mulch film uses to remove and to transfer fertilizer to and absorbed by crops, have features simple and practical process, free from environmental pollution, extraction cost is low, speed is fast, recovery rate, can improve the fertilizer conservation water retention capacity of soil, improve soil structure, solve the advantage of plastic film " white pollution " problem.
For this reason, a kind ofly produce the method that environmental-protection fully-degradable turns solution attitude mulch film with coal humic acid, it is to be made of following technical process:
(1), with weathered coal, or brown coal, or mud coal, or after the selected impurity elimination of the peat composed of rotten mosses, join in the cracker are broken into 100～150 purpose coal dusts end;
(2), press the coal dust end: potassium hydroxide: potash: water=100～120: 0.2～0.7: 0.2～0.6: 200～320 raw material weight proportioning, above-mentioned raw materials is mixed to join in the reactor, stir, begin to be heated to 60 ℃～80 ℃, be incubated stopped heating after 25～45 minutes, staticly settle, after raw material is cooled to 20 ℃～30 ℃, get supernatant, supernatant is separated the removal sediment with supercentrifuge, pH value is 9～11 supernatant, the concentrated supernatant water content 40～50% of removing gets humic acid potassium liquid;
(3), press humic acid potassium liquid: boric acid: silicon potash fertilizer: cellulose: crosslinking agent: water: 1-Methoxy-2-propyl acetate: ammonium nitrate=10～12: 1.8～2.5: 1.2～1.7: 0.15～0.17: 0.25～0.27: 20～30: 0.2～0.3: 0.1～0.2 raw material weight proportioning, first with humic acid potassium liquid, boric acid, silicon potash fertilizer, cellulose, the compound of crosslinking agent and water joins in the reactor, when being heated to 85 ℃～92 ℃, stirring at low speed mixes, stirring is 1-Methoxy-2-propyl acetate and the ammonium nitrate that adds the aforementioned proportion amount after 5～8 minutes, stirring at low speed is even, reaction generates environmental-protection fully-degradable and turns solution attitude mulch film, dry, 60 ℃～80 ℃ of baking temperatures are finished product after the drying;
(4), when spraying, will add the water dilution of 6～8 times of finished weights, the solution PH after the dilution will be 6～9, stir, and guarantee not have particle to get final product, and then evenly be sprayed on ground, and every mu of usage amount is 10～15Kg.Described crosslinking agent is any in trien or 3-dimethylamino propylamine or the 3 diethyl aminopropylamine.
Advantage of the present invention be can be enough coal humic acid produce the environmental-protection fully-degradable liquid-state mulch film, and this liquid-state mulch film exempts to remove after using and can transfer fertilizer to and absorbed by crops, has features simple and practical process, free from environmental pollution, extraction cost is low, speed is fast, and recovery rate can improve the fertilizer conservation water retention capacity of soil, the improvement soil structure, extraction cost of the present invention is low, only is 50% of conventional method cost, than traditional method for extracting rate high about 30%, save recruitment cost 99%, good application prospect is arranged.
The heat absorption of the existing plastic film of the present invention heats, preserves soil moisture, keeps a full stand of seedings, improves the effect of crop yield; Humic acid mainly contains the absorption of the exchange of colloidal nature, heat endurance, electrochemical properties, humic acid and metal ion and complexing, humic acid and desorption etc., so natural degradation is organic manure fully; Carboxyl, hydroxyl, carbonyl isoreactivity functional group are arranged in the humic acid structure, have the resistance that stimulating plant grew, increased crop, the effect of improving the nutrition condition of plant, and can improve fertilizer conservation, the water retention capacity of soil, but so both culture fertility, can improve soil structure again, solve " white pollution " problem that plastic film causes, realized again the high-efficiency comprehensive utilization of coal; Both reduced the use cost of mulch film, reached again agricultural production and income, comprehensive utilization of resources, and realized recycling economy, improve the purpose of Ecological Environment, achieved many things at one stroke.
Embodiment
The present invention adopts enamel reaction still, vertical response pot all can.Can make the cylindrical form reactor by oneself for saving cost, reactor placed and stuck-at-１ .5 rice * about 1.5 meters platform on, platform is just made with round steel or triangle, and escalator is arranged, convenient operation personnel operate up and down, the reactor top is the adjustable speed agitator of 0.55～0.75kw with the parallel bracket constant power, the diameter of rotating shaft is 30 centimetres, the below is with oar shape or lobate impeller, the feeding door is established in kettle side lower end, and 2 little progress water pipes are accessed in the upper end, and passes into 1 cun steam inlet tube, and the air inlet mouth of pipe reaches about 1 chi at the bottom of still, and mode of heating is steam direct heating.Warm air drier is roller dryer, and warm air drier can be bought or make by oneself and all can.
The colm that fuel value is low is selected, remove iron wire, stone, behind the foreign material such as tree, be ground into 100 purpose coal dusts end, then take by weighing the coal dust end of 100Kg, 0.2Kg potassium hydroxide, 0.2Kg potash and the water of 200Kg, join simultaneously in the reactor, stir, begin to be heated to 60 ℃～80 ℃, be incubated stopped heating after 25～45 minutes, staticly settle, after raw material is cooled to 20 ℃～30 ℃, get supernatant, supernatant is separated the removal sediment with supercentrifuge (centrifugal speed is 3000 rev/mins), pH value is 9～11 supernatant, the concentrated supernatant water content 40～50% of removing gets humic acid potassium liquid.Getting humic acid potassium liquid 10Kg puts in reactor again, add again the water of 25Kg, the boric acid of 2Kg, silicon potash fertilizer, 0.15Kg cellulose and the 0.25Kg trien of 1.3Kg, add together in the reactor, heat to 90 ℃, mix with 36 rev/mins of speed, time is 5 minutes, then add again the 1-Methoxy-2-propyl acetate of 0.2Kg and the ammonium nitrate of 0.1Kg, mix with 36 rev/mins of speed, reaction generates environmental-protection fully-degradable and turns solution attitude mulch film, drying is finished product, and baking temperature is no more than 80 ℃.
During sprinkling, will add the water dilution of 6～8 times of finished weights, the solution PH after the dilution is 6～9, stirs, and guarantees not have particle to get final product, and then evenly is sprayed on ground, and every mu of usage amount is 10～15Kg.
The colm that fuel value is low refers to that low heat valve is at 4500 kilocalories/ coal below the kg.
In a word, the present invention can produce the environmental-protection fully-degradable liquid-state mulch film by enough coal humic acids, and exempt from after this liquid-state mulch film uses to remove and can transfer fertilizer to and absorbed by crops, have features simple and practical process, free from environmental pollution, extraction cost is low, speed is fast, recovery rate can improve the fertilizer conservation water retention capacity of soil, the advantage of improvement soil structure, solved plastic film " white pollution " problem, can promote the use of.
Claims (2)
1. produce the method that environmental-protection fully-degradable turns solution attitude mulch film with coal humic acid for one kind, it is characterized in that it is to be made of following technical process:
(1), with weathered coal, or brown coal, or after the selected impurity elimination of mud coal, join in the cracker are broken into 100～150 purpose coal dusts end;
(2), press the coal dust end: potassium hydroxide: potash: water=100～120: 0.2～0.7: 0.2～0.6: 200～320 raw material weight proportioning, above-mentioned raw materials is mixed to join in the reactor, stir, begin to be heated to 60 ℃～80 ℃, be incubated stopped heating after 25～45 minutes, staticly settle, after raw material is cooled to 20 ℃～30 ℃, get supernatant, supernatant is separated the removal sediment with supercentrifuge, pH value is 9～11 supernatant, the concentrated supernatant water content 40～50% of removing gets humic acid potassium liquid;
(3), press humic acid potassium liquid: boric acid: silicon potash fertilizer: cellulose: crosslinking agent: water: 1-Methoxy-2-propyl acetate: ammonium nitrate=10～12: 1.8～2.5: 1.2～1.7: 0.15～0.17: 0.25～0.27: 20～30: 0.2～0.3: 0.1～0.2 raw material weight proportioning, first with humic acid potassium liquid, boric acid, silicon potash fertilizer, cellulose, the compound of crosslinking agent and water joins in the reactor, when being heated to 85 ℃～92 ℃, stirring at low speed mixes, stirring is 1-Methoxy-2-propyl acetate and the ammonium nitrate that adds the aforementioned proportion amount after 5～8 minutes, stirring at low speed is even, reaction generates environmental-protection fully-degradable and turns solution attitude mulch film, dry, 60 ℃～80 ℃ of baking temperatures are finished product after the drying;
(4), when spraying, will add the water dilution of 6～8 times of finished weights, the solution PH after the dilution will be 6～9, stir, and guarantee not have particle to get final product, and then evenly be sprayed on ground, and every mu of usage amount is 10～15Kg.
2. produce the method that environmental-protection fully-degradable turns solution attitude mulch film by claimed in claim 1 with coal humic acid, it is characterized in that: described crosslinking agent is any in trien or 3-dimethylamino propylamine or the 3 diethyl aminopropylamine.
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| CN 201110092937 CN102239794B (en) | 2011-04-13 | 2011-04-13 | Process for producing environmentally-friendly full-degradable liquid mulch film capable of turning into fertilizer by using coal humic acid |
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| CN102239794B true CN102239794B (en) | 2013-02-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102701856B (en) * | 2012-06-13 | 2014-04-16 | 方宁 | Fertilizer produced by using coal special for humic acid desertification control |
| CN106380690B (en) * | 2016-09-05 | 2018-01-05 | 广东高乐玩具股份有限公司 | A kind of preparation method of modified polypropylene plastic |
| CN107868483B (en) * | 2017-10-24 | 2019-12-03 | 昆明理工大学 | A kind of young coal degradation solution full-service fluid mulch |
| CN110790945B (en) * | 2019-11-26 | 2021-06-18 | 陕西科技大学 | Cationized humic acid and preparation method and application thereof |
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| US4686790A (en) * | 1985-10-29 | 1987-08-18 | Kuwait Institute For Scientific Research | Degradable agricultural plastic articles, e.g., mulching film, comprising slowly released multinutrients in matrix of thermoplastic, and process for preparing same |
| CN101007903A (en) * | 2007-01-23 | 2007-08-01 | 亓欣 | All-degradable liquid mulch film |
| CN101323706A (en) * | 2008-07-25 | 2008-12-17 | 王芝代 | Biodegradable liquid agricultural film |
| CN101481508A (en) * | 2008-01-11 | 2009-07-15 | 山东科技大学 | Humic acid multifunctional degradable black mulch film |
| CN101560123A (en) * | 2009-05-22 | 2009-10-21 | 李保华 | Humic acid degradable liquid manure plastic film and production method thereof |
| CN101792672A (en) * | 2010-03-02 | 2010-08-04 | 昆明春叶塑料制成品有限公司 | Method for producing liquid mulching film for tobacco by using tobacco waste humic acid |
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- 2011-04-13 CN CN 201110092937 patent/CN102239794B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686790A (en) * | 1985-10-29 | 1987-08-18 | Kuwait Institute For Scientific Research | Degradable agricultural plastic articles, e.g., mulching film, comprising slowly released multinutrients in matrix of thermoplastic, and process for preparing same |
| CN101007903A (en) * | 2007-01-23 | 2007-08-01 | 亓欣 | All-degradable liquid mulch film |
| CN101481508A (en) * | 2008-01-11 | 2009-07-15 | 山东科技大学 | Humic acid multifunctional degradable black mulch film |
| CN101323706A (en) * | 2008-07-25 | 2008-12-17 | 王芝代 | Biodegradable liquid agricultural film |
| CN101560123A (en) * | 2009-05-22 | 2009-10-21 | 李保华 | Humic acid degradable liquid manure plastic film and production method thereof |
| CN101792672A (en) * | 2010-03-02 | 2010-08-04 | 昆明春叶塑料制成品有限公司 | Method for producing liquid mulching film for tobacco by using tobacco waste humic acid |
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