CN111100646A - Heavy metal stabilizer for soil acidity and alkalinity improvement - Google Patents
Heavy metal stabilizer for soil acidity and alkalinity improvement Download PDFInfo
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- CN111100646A CN111100646A CN201811255238.3A CN201811255238A CN111100646A CN 111100646 A CN111100646 A CN 111100646A CN 201811255238 A CN201811255238 A CN 201811255238A CN 111100646 A CN111100646 A CN 111100646A
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- 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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
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Abstract
The invention discloses a heavy metal stabilizer for soil acidity and alkalinity improvement, which comprises the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the balance of Al and inevitable impurities, wherein the content range of the calcium carbonate is as follows: 50-85g/mol, the content of the dimethylbenzene is not more than 2.5mg/L, the content of the hydroxyapatite is not more than 0.11 wt%, and the content of the potassium chloride (KCl) is not more than 4.2 mm. The invention has the beneficial effects that: the heavy metal stabilizer for soil acidity and alkalinity improvement is prepared by adjusting the proportion of montmorillonite and ammonium chloride and adding some elements such as xylene and hydroxyapatite, and the like, so that the new heavy metal stabilizer for soil acidity and alkalinity improvement is prepared, the heavy metal contents of Pb, Zn, Cd and Cu in soil are proportioned again, and the acidity and alkalinity in the soil is improved.
Description
Technical Field
The invention relates to a stabilizer material, in particular to a heavy metal stabilizer for soil acidity and alkalinity improvement.
Background
The stabilizer is mainly an agent for keeping high polymer plastics, rubber, synthetic fibers and the like stable and preventing decomposition and aging of the high polymer plastics, rubber, synthetic fibers and the like, and is a chemical substance capable of increasing the stability of solution, colloid, solid and mixture, and is called as a stabilizer. It can slow down reaction, maintain chemical equilibrium, reduce surface tension, and prevent photo, thermal or oxidative decomposition.
Disclosure of Invention
The present invention aims to provide a heavy metal stabilizer for soil acidity and alkalinity improvement to solve the problems in the background art.
In order to solve the technical problems, the invention provides a heavy metal stabilizer for soil acid-base improvement, which comprises the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the rest is Al and inevitable impurities.
The content range of the scrap iron is not more than 35g, and the content range of the calcium carbonate (CaCO 3) is as follows: 50-85g/mol, the content of montmorillonite is not more than 35g, the content of xylene (C6H 4(CH3) 2) is not more than 2.5mg/L, the content of hydroxyapatite is not more than 0.11 wt%, the content of ammonium chloride (NH 4 Cl) is not more than 3.5mm, the content of potassium chloride (KCl) is not more than 4.2mm, and the content of impurities is not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, sufficient amounts of Al blocks, iron filings, calcium carbonate (CaCO 3) solution, montmorillonite, and hydroxyapatite were prepared. Then placing the Al block in a melting furnace, and heating to 800-900 ℃; after heating for 0.5 hour, continuously stirring by a tungsten rod until the Al block is completely melted into liquid.
The second step is that: then placing the iron filings into another smelting furnace, then gradually heating the smelting furnace to 1500-1600 deg.C, heating for 1.5 hr, then adding calcium carbonate (CaCO 3) solution according to a certain proportion, heating for 0.5 hr, then placing the mixed solution into the smelting furnace containing Al liquid according to a certain proportion, then holding at 1500-1600 deg.C for 4 hr, so that the mixed solution can be completely dissolved in the Al liquid.
The third step: putting the montmorillonite powder and the hydroxyapatite powder into a smelting furnace, heating the materials to form liquid by continuously raising the temperature, putting the liquid of ammonium chloride (NH 4 Cl) into the smelting furnace with the montmorillonite powder and the hydroxyapatite powder, continuously stirring the mixed solution in the smelting furnace by using a tungsten rod, and keeping the temperature at 1700-2000 ℃ for 3-6 h.
The fourth step: the method comprises the steps of putting a dimethylbenzene (C6H 4(CH3) 2) solution into a smelting furnace for mixing ammonium chloride (NH 4 Cl) liquid with montmorillonite powder and hydroxyapatite powder at the temperature of 1500-1600 ℃, keeping the temperature for 4 hours, then continuously stirring and mixing the solution mixed with Al liquid by using a tungsten rod, keeping the temperature at 1700-2000 ℃, keeping the temperature for 3 hours, then carrying out materialization treatment, and cooling to obtain the heavy metal stabilizer for soil acid-base improvement.
The invention has the beneficial effects that: according to the heavy metal stabilizer for soil acidity and alkalinity improvement, montmorillonite, ammonium chloride and potassium chloride are adjusted according to a certain proportion, and then a certain amount of xylene, hydroxyapatite and other elements are added, so that a novel heavy metal stabilizer for soil acidity and alkalinity improvement is prepared, the contents of Pb, Zn, Cd and Cu heavy metals in soil are proportioned again, and the acidity and alkalinity in the soil is improved.
Detailed Description
The following further description is provided in conjunction with the detailed description, but the detailed description below should not be construed as limiting the invention. Various modifications and variations obvious to those skilled in the art, which can be made on the basis of the present invention, should be within the scope of the present invention.
Example 1:
the invention provides a heavy metal stabilizer for soil acidity and alkalinity improvement, which comprises the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the rest is Al and inevitable impurities.
The content range of the scrap iron is not more than 35g, and the content range of the calcium carbonate (CaCO 3) is as follows: 50-85g/mol, the content of montmorillonite is not more than 35g, the content of xylene (C6H 4(CH3) 2) is not more than 2.5mg/L, the content of hydroxyapatite is not more than 0.11 wt%, the content of ammonium chloride (NH 4 Cl) is not more than 3.5mm, the content of potassium chloride (KCl) is not more than 4.2mm, and the content of impurities is not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, sufficient amounts of Al blocks, iron filings, calcium carbonate (CaCO 3) solution, montmorillonite, and hydroxyapatite were prepared. Then placing the Al block in a melting furnace, and heating to 800-900 ℃; after heating for 0.5 hour, continuously stirring by a tungsten rod until the Al block is completely melted into liquid.
The second step is that: then placing the iron filings into another smelting furnace, then gradually heating the smelting furnace to 1500-1600 deg.C, heating for 1.5 hr, then adding calcium carbonate (CaCO 3) solution according to a certain proportion, heating for 0.5 hr, then placing the mixed solution into the smelting furnace containing Al liquid according to a certain proportion, then holding at 1500-1600 deg.C for 4 hr, so that the mixed solution can be completely dissolved in the Al liquid.
The third step: putting the montmorillonite powder and the hydroxyapatite powder into a smelting furnace, heating the materials to form liquid by continuously raising the temperature, putting the liquid of ammonium chloride (NH 4 Cl) into the smelting furnace with the montmorillonite powder and the hydroxyapatite powder, continuously stirring the mixed solution in the smelting furnace by using a tungsten rod, and keeping the temperature at 1700-2000 ℃ for 3-6 h.
The fourth step: the method comprises the steps of putting a dimethylbenzene (C6H 4(CH3) 2) solution into a smelting furnace for mixing ammonium chloride (NH 4 Cl) liquid with montmorillonite powder and hydroxyapatite powder at the temperature of 1500-1600 ℃, keeping the temperature for 4 hours, then continuously stirring and mixing the solution mixed with Al liquid by using a tungsten rod, keeping the temperature at 1700-2000 ℃, keeping the temperature for 3 hours, then carrying out materialization treatment, and cooling to obtain the heavy metal stabilizer for soil acid-base improvement.
Example 2:
the invention provides a heavy metal stabilizer for soil acidity and alkalinity improvement, which comprises the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the rest is Al and inevitable impurities.
The content range of the scrap iron is not more than 35g, and the content range of the calcium carbonate (CaCO 3) is as follows: 50-85g/mol, the content of montmorillonite is not more than 35g, the content of xylene (C6H 4(CH3) 2) is not more than 2.5mg/L, the content of hydroxyapatite is not more than 0.11 wt%, the content of ammonium chloride (NH 4 Cl) is not more than 3.5mm, the content of potassium chloride (KCl) is not more than 4.2mm, and the content of impurities is not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, sufficient amounts of Al blocks, iron filings, calcium carbonate (CaCO 3) solution, montmorillonite, and hydroxyapatite were prepared. Then placing the Al block in a melting furnace, and heating to 900-1000 ℃; after heating for 1.5 hours, the mixture was stirred by a tungsten rod until the Al mass was completely melted into a liquid.
The second step is that: then placing the iron filings into another melting furnace, gradually heating the melting furnace to 1600-1700 ℃, adding a calcium carbonate solution according to a certain proportion after heating for 2.5 hours, placing the mixed solution into the melting furnace containing Al liquid according to a certain proportion after heating for 1.5 hours, and then keeping the temperature at 1600-1700 ℃ for 5 hours to completely dissolve the mixed solution into the Al liquid.
The third step: putting montmorillonite powder and hydroxyapatite powder in a smelting furnace, heating the materials to form liquid by continuously heating, putting the liquid of ammonium chloride (NH 4 Cl) in the smelting furnace with the montmorillonite powder and the hydroxyapatite powder, then putting a potassium chloride (KCl) solution in the smelting furnace with the mixed solution of scrap iron, calcium carbonate (CaCO 3) and Al liquid, continuously stirring the solution by using a tungsten rod, and keeping the temperature for 4 to 7 hours at 2000 to 2100 ℃.
The fourth step: the method comprises the steps of putting a dimethylbenzene (C6H 4(CH3) 2) solution into a smelting furnace for mixing ammonium chloride (NH 4 Cl) liquid with montmorillonite powder and hydroxyapatite powder at 1600-1700 ℃, keeping the temperature for 4 hours, then continuously stirring and mixing the solution mixed with Al liquid by using a tungsten rod, keeping the temperature at 2000-2100 ℃, keeping the temperature for 3 hours, then carrying out materialization treatment, and cooling to obtain the heavy metal stabilizer for soil acid-base improvement.
Example 3:
the invention provides a heavy metal stabilizer for soil acidity and alkalinity improvement, which comprises the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the rest is Al and inevitable impurities.
The content range of the scrap iron is not more than 35g, and the content range of the calcium carbonate (CaCO 3) is as follows: 50-85g/mol, the content of montmorillonite is not more than 35g, the content of xylene (C6H 4(CH3) 2) is not more than 2.5mg/L, the content of hydroxyapatite is not more than 0.11 wt%, the content of ammonium chloride (NH 4 Cl) is not more than 3.5mm, the content of potassium chloride (KCl) is not more than 4.2mm, and the content of impurities is not more than 0.0013.
The preparation method of the heavy metal stabilizer comprises the following steps:
the first step is as follows: first, sufficient amounts of Al blocks, iron filings, calcium carbonate (CaCO 3) solution, montmorillonite, and hydroxyapatite were prepared. Then placing the Al block in a melting furnace, and heating to 1000-1100 ℃; after heating for 2.5 hours, the mixture was stirred by a tungsten rod until the Al mass was completely melted into a liquid.
The second step is that: then placing the iron filings into another melting furnace, then gradually heating the melting furnace to 1700-1800 ℃, after heating for 3.5 hours, adding calcium carbonate solution according to a certain proportion, after heating for 3.5 hours, placing the mixed solution into the melting furnace containing Al liquid according to the proportion, and then keeping the temperature at 1700-1800 ℃ for 6 hours to make the mixed solution completely dissolved in the Al liquid.
The third step: putting montmorillonite powder and hydroxyapatite powder in a smelting furnace, heating the materials to form liquid by continuously heating, putting the liquid of ammonium chloride (NH 4 Cl) in the smelting furnace with the montmorillonite powder and the hydroxyapatite powder, then putting a potassium chloride (KCl) solution in the smelting furnace with the mixed solution of scrap iron, calcium carbonate (CaCO 3) and Al liquid, continuously stirring the solution by using a tungsten rod, and keeping the temperature at 2100-2200 ℃ for 7-9 hours.
The fourth step: the method comprises the steps of putting a dimethylbenzene (C6H 4(CH3) 2) solution into a smelting furnace for mixing ammonium chloride (NH 4 Cl) liquid with montmorillonite powder and hydroxyapatite powder at the temperature of 1700-1800 ℃, keeping the temperature for 4 hours, then continuously stirring and mixing the solution mixed with Al liquid by using a tungsten rod, keeping the temperature at 2100-2200 ℃, keeping the temperature for 3 hours, then carrying out materialization treatment, and cooling to obtain the heavy metal stabilizer for soil acid-base improvement.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (3)
1. A heavy metal stabilizer for soil acid-base improvement is characterized by comprising the following components in percentage by weight: scrap iron: 15g-35g, calcium carbonate (CaCO 3): 50-85g/mol, montmorillonite: 20-35g, xylene (C6H 4(CH3) 2): 0.5mg/L-2.5mg/L, hydroxyapatite: 0.08-0.11 wt%, ammonium chloride (NH 4 Cl): 2.5mm-3.5mm, potassium chloride (KCl): 3.5mm-4.2mm, the rest is Al and inevitable impurities.
2. The heavy metal stabilizer for soil acidity and alkalinity improvement according to claim 1, wherein: the content range of the scrap iron is not more than 35g, and the content range of the calcium carbonate (CaCO 3) is as follows: 50-85g/mol, the content of montmorillonite is not more than 35g, the content of xylene (C6H 4(CH3) 2) is not more than 2.5mg/L, the content of hydroxyapatite is not more than 0.11 wt%, the content of ammonium chloride (NH 4 Cl) is not more than 3.5mm, the content of potassium chloride (KCl) is not more than 4.2mm, and the content of impurities is not more than 0.0013.
3. A method for preparing a heavy metal stabilizer for soil acidity and alkalinity improvement according to any one of claims 1 to 2, characterized in that: the method comprises the following steps:
the first step is as follows: firstly, preparing enough Al blocks, scrap iron, calcium carbonate (CaCO 3) solution, montmorillonite and hydroxyapatite, then placing the Al blocks in a melting furnace, and heating to 800-900 ℃; heating for 0.5 hour, and continuously stirring by a tungsten rod until the Al block is completely melted into liquid;
the second step is that: then placing the scrap iron into another melting furnace, gradually heating the melting furnace to 1500-1600 ℃, heating for 1.5 hours until the scrap iron is completely melted into liquid, adding a calcium carbonate (CaCO 3) solution according to a certain proportion, heating for 0.5 hour, then placing the mixed solution into the melting furnace containing Al liquid according to the proportion, and keeping at 1500-1600 ℃ for 4 hours to completely dissolve the mixed solution into the Al liquid;
the third step: putting montmorillonite powder and hydroxyapatite powder into a smelting furnace, heating the materials to form liquid by continuously raising the temperature, putting the liquid of ammonium chloride (NH 4 Cl) into the smelting furnace with the montmorillonite powder and the hydroxyapatite powder, continuously stirring the mixed solution in the smelting furnace by using a tungsten rod, and keeping the temperature at 1700-2000 ℃ for 3-6 h;
the fourth step: the method comprises the steps of putting a dimethylbenzene (C6H 4(CH3) 2) solution into a smelting furnace for mixing ammonium chloride (NH 4 Cl) liquid with montmorillonite powder and hydroxyapatite powder at the temperature of 1500-1600 ℃, keeping the temperature for 4 hours, then continuously stirring and mixing the solution mixed with Al liquid by using a tungsten rod, keeping the temperature at 1700-2000 ℃, keeping the temperature for 3 hours, then carrying out materialization treatment, and cooling to obtain the heavy metal stabilizer for soil acid-base improvement.
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