CN102010716A - Method for preparing soil aggregate accelerating agent - Google Patents
Method for preparing soil aggregate accelerating agent Download PDFInfo
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- CN102010716A CN102010716A CN201010543261XA CN201010543261A CN102010716A CN 102010716 A CN102010716 A CN 102010716A CN 201010543261X A CN201010543261X A CN 201010543261XA CN 201010543261 A CN201010543261 A CN 201010543261A CN 102010716 A CN102010716 A CN 102010716A
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Abstract
The invention discloses a method for preparing a soil aggregate accelerating agent, and belongs to the technical field of soil reclamation. In the method, solution of nitro humic acid, acrylic acid and N,N-nitroso bisacrylamide react with solution of sodium hydroxide of potassium persulfate to obtain a nitro humic acid/acrylic acid soil aggregate accelerating agent. The soil aggregate accelerating agent has the obvious promoting effect on soil aggregate and high popularization value, and compared with the cost of high polymers, reduces cost by more than 40 percent.
Description
Technical field
The invention belongs to the soil improvement technical field, be specifically related to a kind of soil agreegate promotor and preparation method thereof.
Background technology
Soil agreegate is the important basic substance of soil fertility, also is the core place of soil performance ecotope child care function, and the quantity of therefore making great efforts the raising soil agreegate is people's long-term aim.The quantity of traditional farming measure can the raising such as farming, application of organic fertilizers soil agreegate, but effect is not remarkable, needs the time long.Use the quantity that high molecular polymer product (as polyacrylamide) can significantly improve the earth coacervate at short notice, but its cost costliness can't come into the market in a large number.
Humic acids forms soil agreegate has vital role, how is carrying out by using the trial that humic acids improves soil aggregation always.Humic acids is combined with the high molecular polymer product, is to guarantee low, the obvious results effective ways of product price.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of soil agreegate promotor.
A kind of preparation method of soil agreegate promotor is characterized in that, carries out according to following steps:
(1) weathered coal, deionized water are mixed with concentrated nitric acid, heated and stirred 20～60min filters on funnel, the taking-up of black residue on the funnel is dried in baking oven, divide the NaOH solution that adds 2mol/L for three times, collect three times filtrate, obtain nitrated sodium humate solution.
(2) under 70～90 ℃ water bath with thermostatic control condition, with nitrated sodium humate solution, vinylformic acid and N, N-industry nitro bisacrylamide mixes, and stirs, and dropwise adds Potassium Persulphate and sodium hydroxide solution, constantly stirs, till can't stirring.
(3) material that step (2) is obtained is divided into fritter, 60～80 ℃ of oven dry down.
(4) material that oven dry is obtained is pulverized, and gets 0.5～1.0mm particle, obtains earth coacervate promotor on nitro humic acid/acrylic type.
Add the NaOH solution of weathered coal, deionized water, concentrated nitric acid and 2mol/L ratio be (80～120g): (400～600ml): (30～60ml): (800～1200ml).
Institute adds nitrated sodium humate solution, vinylformic acid, N, and the mass ratio of N-nitroso-group bisacrylamide, Potassium Persulphate and sodium hydroxide is (400～600): (200～300): (0.3～1.0): (8～12): (75～90).
Beneficial effect of the present invention: the main raw material reserves are abundant, cheap; Production technique is simple, cost is low, pollution-free; Product is remarkable to the facilitation effect of soil agreegate, and cost higher molecular polymkeric substance is low more than 40%, has very high promotional value.
Embodiment
The present invention will be further described below in conjunction with embodiment:
Embodiment 1:
(1) preparation nitro humic acid solution: take by weighing the 100g weathered coal, add the 500ml deionized water, add the concentrated nitric acid of 50ml again, solution becomes black, the electric furnace heating.Add suitable quantity of water in whipping process, behind the heating 40min, filter on funnel, the black residue on the funnel is nitrated peat.Residue is dried in baking oven, divide the NaOH solution 1000ml that adds 2mol/L for three times, collect three times filtrate, be sorrel, be nitrated sodium humate solution.
(2) under 80 ℃ water bath with thermostatic control condition, in beaker, add 500g nitro humic acid solution, add vinylformic acid 250g, N, N-nitroso-group bisacrylamide 0.5g stirs; 10.0g Potassium Persulphate and the mixing of 80g sodium hydrate solid is soluble in water, and wiring solution-forming dropwise adds in the above-mentioned mixed solution, constantly stirs, till can't stirring.
(3) will go up the material that obtains of step and be divided into fritter, 80 ℃ of oven dry down.
(4) material that oven dry is obtained is pulverized, and gets 0.5～1.0mm particle, obtains nitro humic acid/acrylic type soil agreegate promotor.
(5) the said products consumption in the laboratory be soil 0.5%, cultivate under 30 days the situation, the quantity of formation＞1mm coacervate can reach 60% in the Southern Red Soil, can reach 40% in the northern chiltern moisture soil.
Embodiment 2:
(1) preparation nitro humic acid solution: take by weighing the 85g weathered coal, add the 550ml deionized water, add the concentrated nitric acid of 40ml again, solution becomes black, the electric furnace heating.Add suitable quantity of water in whipping process, behind the heating 50min, filter on funnel, the black residue on the funnel is nitrated peat.Residue is dried in baking oven, divide the NaOH solution 900ml that adds 2mol/L for three times, collect three times filtrate, be sorrel, be nitrated sodium humate solution.
(2) under 85 ℃ water bath with thermostatic control condition, in beaker, add 450g nitro humic acid solution, add vinylformic acid 220g, N, N-nitroso-group bisacrylamide 0.4g stirs; 9.0g Potassium Persulphate and the mixing of 85g sodium hydrate solid is soluble in water, and wiring solution-forming dropwise adds in the above-mentioned mixed solution, constantly stirs, till can't stirring.
(3) will go up the material that obtains of step and be divided into fritter, 75 ℃ of oven dry down.
(4) material that oven dry is obtained is pulverized, and gets 0.5～1.0mm particle, obtains nitro humic acid/acrylic type soil agreegate promotor.
(5) the said products consumption in the laboratory be soil 1.0%, cultivate under 10 days the situation, the quantity of formation＞1mm coacervate can reach 45% in the Southern Red Soil, can reach 33% in the northern chiltern moisture soil.
Embodiment 3:
(1) preparation nitro humic acid solution: take by weighing the 115g weathered coal, add the 600ml deionized water, add the concentrated nitric acid of 55ml again, solution becomes black, the electric furnace heating.Add suitable quantity of water in whipping process, behind the heating 60min, filter on funnel, the black residue on the funnel is nitrated peat.Residue is dried in baking oven, divide the NaOH solution 1100ml that adds 2mol/L for three times, collect three times filtrate, be sorrel, be nitrated sodium humate solution.
(2) under 75 ℃ water bath with thermostatic control condition, in beaker, add 550g nitro humic acid solution, add vinylformic acid 280g, N, N-nitroso-group bisacrylamide 0.9g stirs; 12.0g Potassium Persulphate and the mixing of 85g sodium hydrate solid is soluble in water, and wiring solution-forming dropwise adds in the above-mentioned mixed solution, constantly stirs, till can't stirring.
(3) will go up the material that obtains of step and be divided into fritter, 80 ℃ of oven dry down.
(4) material that oven dry is obtained is pulverized, and gets 0.5～1.0mm particle, obtains nitro humic acid/acrylic type soil agreegate promotor.
(5) the said products consumption in the laboratory be soil 0.5%, cultivate under 20 days the situation, the quantity of formation＞1mm coacervate can reach 54% in the Southern Red Soil, can reach 38% in the northern chiltern moisture soil.
Claims (3)
1. the preparation method of a soil agreegate promotor is characterized in that, carries out according to following steps:
(1) weathered coal, deionized water are mixed with concentrated nitric acid, heated and stirred 20～60min filters on funnel, the taking-up of black residue on the funnel is dried in baking oven, divide the NaOH solution that adds 2mol/L for three times, collect three times filtrate, obtain the nitro humic acid sodium solution.
(2) under 70～90 ℃ water bath with thermostatic control condition, with nitro humic acid sodium solution, vinylformic acid and N, N-nitroso-group bisacrylamide mixes, and stirs; The Potassium Persulphate and the sodium hydrate solid mixing of certain mass is soluble in water, and wiring solution-forming dropwise adds in the above-mentioned mixed solution, constantly stirs, till can't stirring.
(3) material that step (2) is obtained is divided into fritter, 60～80 ℃ of oven dry down.
(4) material that oven dry is obtained is pulverized, and gets 0.5～1.0mm particle, obtains nitro humic acid/acrylic type soil agreegate promotor.
2. according to the preparation method of the described soil agreegate promotor of claim 1, it is characterized in that, add the NaOH solution of weathered coal, deionized water, concentrated nitric acid and 2mol/L ratio be (80～120g): (400～600ml): (30～60ml): (800～1200ml).
3. according to the preparation method of the described soil agreegate promotor of claim 1, it is characterized in that, institute adds nitrated sodium humate solution, vinylformic acid, N, and the mass ratio of N-nitroso-group bisacrylamide, Potassium Persulphate and sodium hydroxide is (400～600): (200～300): (0.3～1.0): (8～12): (75～90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010543261XA CN102010716A (en) | 2010-11-11 | 2010-11-11 | Method for preparing soil aggregate accelerating agent |
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| CN201010543261XA CN102010716A (en) | 2010-11-11 | 2010-11-11 | Method for preparing soil aggregate accelerating agent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127449A (en) * | 2010-12-27 | 2011-07-20 | 中国农业大学 | Nitrohumic acid/acrylic acid type soil aggregate accelerator |
| CN102977890A (en) * | 2011-09-06 | 2013-03-20 | 安徽明亮农康生物工程科技有限公司界首分公司 | Method for preparing soil amendment |
| CN105176536A (en) * | 2015-09-15 | 2015-12-23 | 江苏锦宇环境工程有限公司 | Preparation method of weathered coal humic acid water retention agent |
| CN110624514A (en) * | 2019-10-22 | 2019-12-31 | 新疆大学 | Method for improving adsorption capacity of humic acid on metal ions |
| CN114375634A (en) * | 2022-01-25 | 2022-04-22 | 江西省农业技术推广中心 | Acidification improvement method for southern acid soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002003841A (en) * | 2000-06-20 | 2002-01-09 | Mitsubishi Heavy Ind Ltd | Soil improving agent and apparatus for using the same |
| CN1626478A (en) * | 2003-12-08 | 2005-06-15 | 中国农业大学 | Method for producing bio-fertilizer of humic acid |
| CN101723766A (en) * | 2008-10-10 | 2010-06-09 | 中国科学院沈阳应用生态研究所 | Organic compound soil modifier and preparation thereof |
-
2010
- 2010-11-11 CN CN201010543261XA patent/CN102010716A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002003841A (en) * | 2000-06-20 | 2002-01-09 | Mitsubishi Heavy Ind Ltd | Soil improving agent and apparatus for using the same |
| CN1626478A (en) * | 2003-12-08 | 2005-06-15 | 中国农业大学 | Method for producing bio-fertilizer of humic acid |
| CN101723766A (en) * | 2008-10-10 | 2010-06-09 | 中国科学院沈阳应用生态研究所 | Organic compound soil modifier and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 朱书全等: "PAA/HA 型高吸水性树脂的合成与性能", 《西安石油大学学报（自然科学版）》, vol. 19, no. 3, 25 May 2004 (2004-05-25), pages 63 - 67 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127449A (en) * | 2010-12-27 | 2011-07-20 | 中国农业大学 | Nitrohumic acid/acrylic acid type soil aggregate accelerator |
| CN102977890A (en) * | 2011-09-06 | 2013-03-20 | 安徽明亮农康生物工程科技有限公司界首分公司 | Method for preparing soil amendment |
| CN105176536A (en) * | 2015-09-15 | 2015-12-23 | 江苏锦宇环境工程有限公司 | Preparation method of weathered coal humic acid water retention agent |
| CN110624514A (en) * | 2019-10-22 | 2019-12-31 | 新疆大学 | Method for improving adsorption capacity of humic acid on metal ions |
| CN110624514B (en) * | 2019-10-22 | 2022-08-02 | 新疆大学 | Method for improving adsorption capacity of humic acid on metal ions |
| CN114375634A (en) * | 2022-01-25 | 2022-04-22 | 江西省农业技术推广中心 | Acidification improvement method for southern acid soil |
| CN114375634B (en) * | 2022-01-25 | 2023-01-31 | 江西省农业技术推广中心 | Acidification improvement method for southern acid soil |
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Application publication date: 20110413 |