CN107892630A - A kind of humic acid calcium silicate fertilizer based on red mud and preparation method thereof - Google Patents
A kind of humic acid calcium silicate fertilizer based on red mud and preparation method thereof Download PDFInfo
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- CN107892630A CN107892630A CN201711186374.7A CN201711186374A CN107892630A CN 107892630 A CN107892630 A CN 107892630A CN 201711186374 A CN201711186374 A CN 201711186374A CN 107892630 A CN107892630 A CN 107892630A
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- red mud
- rudimentary
- coal
- calcium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Abstract
A kind of humic acid calcium silicate fertilizer based on red mud and preparation method thereof, it is prepared by following raw material, and the mass ratio of each component is：100 parts of red mud, rudimentary 40~80 parts of coal, 5~10 parts of iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, 3~5 parts of zinc sulfate, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；Preparation method is：First measured 100 parts of red muds are added in reactive tank, add 50 parts~60 parts of water, stirring is dispersed in water red mud, adds 40~80 parts of rudimentary 5~10 parts of coals and iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, 3~5 parts of zinc sulfate, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent, mixing, 60 DEG C~100 DEG C are heated to, mixed material is ground by colloid mill, is well mixed, is reacted complete；Beneficial effect is：The alkalescence of red mud can be reduced, the silica calcium oxide in red mud is converted into the efficient oxidation silicon calcium oxide and is easily absorbed by crops utilization, preparation technology is simple, and cost is low.
Description
Technical field
The present invention relates to fertilizer and preparation method, and in particular to a kind of humic acid calcium silicate fertilizer and its preparation based on red mud
Method.
Background technology
Red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production aluminum oxide work
Caused red mud in skill.Red mud amount caused by annual alumina producing is up to more than 3,000 ten thousand tons, and red mud is only in building materials row at present
Industry has a small amount of application, and substantial amounts of red mud takes substantial amounts of soil as mine tailing accumulation, and pollutes environment.Silico-calcium element is crop
Required middle amount nutrient, humic acid calcium silicate fertilizer are a kind of novel and multifunctional fertilizer, can both make fertilizer, there is provided silico-calcium nutrition into
Point, the photosynthesis and chlorophyll content of crop are improved, makes cauline leaf straight and upright, promotes organic matter accumulation, can be used as soil conditioning again
Agent, improved soil, beneficial microbe is activated, correct soil aciditiy, improve soil alkali, promote organic fertilizer to decompose, adjust crop
The effect such as utilize to the Balance Absorption of the Different Nutrients such as N P and K, by as the high-efficiency high-quality fertilizer of development green ecological agricultural.
Containing needed for crop and the nutrients such as the silicon utilized, calcium can be absorbed by crops in red mud, but due to containing free hydrogen in red mud
Sodium oxide molybdena and alkali compounds, pH value are up to more than 12, can not be applied to farmland.
The present invention is aided with the rudimentary colliery thing containing humic acid such as weathered coal, lignite, and add solution using red mud as main component
Silicon synergist, calcium synergist, nutrient needed for supplement crop, humic is prepared by special ground and mixed technological reaction
Sour calcium silicate fertilizer, enables red mud harmless treatment, and farmland can directly utilize and can be by humic acid improved soil；Can be largely sharp
With solid waste such as red muds, pollution is eliminated.Its preparation method is simple, and cost is low, and takes full advantage of waste red mud residues, have compared with
Good economic benefit and social benefit.
The content of the invention
It is an object of the invention to make up the deficiencies in the prior art, there is provided a kind of humic acid calcium silicate fertilizer based on red mud
And preparation method thereof.Using in the humic acid in rudimentary coal weathered coal or lignite and red mud in free sodium hydroxide and other
Alkali compounds generates sodium humate, using the cooperative effect for solving silicon synergist, calcium synergist, supplements nutrition member needed for crop
Element, promote absorbing for silico-calcium nutrient, most the pH value of red mud is down to less than 8.5 at last, may be directly applied to farmland
Crop.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of humic acid calcium silicate fertilizer based on red mud, it is characterised in that：It is prepared by following raw material, each component
Mass ratio is：100 parts of red mud, rudimentary 40~g0 of coal parts, 5~10 parts of iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, zinc sulfate 3
~5 parts, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；
Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production oxidation
Caused red mud in aluminium technique；
Wherein rudimentary coal includes weathered coal and lignite, and its content of humic acid is 20%~70%.
A kind of preparation method of humic acid calcium silicate fertilizer based on red mud, it is prepared by following raw material, each component
Mass ratio is：100 parts of red mud, rudimentary 40~80 parts of coal, 5~10 parts of iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, zinc sulfate 3
~5 parts, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；
Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production oxidation
Caused red mud in aluminium technique；
Wherein rudimentary coal includes weathered coal and lignite, and its content of humic acid is 20%~70%；
It is characterized in that：Preparation method is：First measured 100 parts of red muds are added in reactive tank, add 50 parts~60
The water of part, stirring are dispersed in water red mud, add 40~80 parts of rudimentary 5~10 parts of coals and iron ammonium sulfate, biphosphate
3~8 parts of potassium, 3~5 parts of zinc sulfate, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；Mixing, 60 DEG C~100 DEG C are heated to, mixing
Material is ground by colloid mill, and various materials is sufficiently mixed by grinding, uniform, reaction is complete.Red mud and rudimentary coal and
The pH value control of material is 7.0~8.5 after iron ammonium sulfate, dipotassium hydrogen phosphate, zinc sulfate, boric acid, calcium chelating agent reaction completely,
PH value is controlled by adjusting the ratio of red mud and rudimentary coal；Material after reaction completely is dried or dried below 160 DEG C, i.e.,
For humic acid calcium silicate fertilizer.
The beneficial effects of the invention are as follows：The present invention can effectively change the property of red mud, reduce the alkalescence of red mud, make in red mud
Silica calcium oxide be converted into the efficient oxidation silicon calcium oxide and be easily absorbed by crops utilization；Adding humic acid simultaneously can change
Good soil, promote absorption of the crop to silica calcium oxide；Increase iron ammonium sulfate, dipotassium hydrogen phosphate, zinc sulfate, boric acid both to mend
The nutrients such as the N P and K sulphur zinc ferro-boron needed for crop have been filled, have utilized titanium dioxide in the faintly acid enhancing red mud of these materials again
The activity of silicon, promote absorbing for element silicon；Increasing calcium chelating agent collaboration humic acid converts the inorganic chemical calcium in red mud
For organic calcium, absorbing for calcium constituent is improved.Preparation technology of the present invention is simple, and cost is low, and takes full advantage of waste red mud residues,
With preferable economic benefit and social benefit.
Embodiment
The present invention is further illustrated below by embodiment.
Embodiment 1
A kind of humic acid calcium silicate fertilizer based on red mud, raw material is using red mud, weathered coal, iron ammonium sulfate, biphosphate
Potassium, zinc sulfate, boric acid, calcium chelating agent, the mass ratio of each component are：100 parts of red mud, rudimentary 60~80 parts of coal, iron ammonium sulfate 5
Part, 8 parts of potassium dihydrogen phosphate, 3 parts of zinc sulfate, 0.5 part of boric acid, 8 parts of calcium chelating agent；
Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production oxidation
Caused red mud in aluminium technique；
Wherein weathered coal, its content of humic acid are 60%；
A kind of preparation method of humic acid calcium silicate fertilizer based on red mud, raw material is using red mud, weathered coal, ferrous sulfate
Ammonium, potassium dihydrogen phosphate, zinc sulfate, boric acid, calcium chelating agent, the mass ratio of each component are：100 parts of red mud, 60~80 parts of weathered coal,
5 parts of iron ammonium sulfate, 8 parts of potassium dihydrogen phosphate, 3 parts of zinc sulfate, 0.5 part of boric acid, 8 parts of calcium chelating agent；
Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production oxidation
Caused red mud in aluminium technique；
Wherein weathered coal, its content of humic acid are 60%；
Preparation process is：First measured 100 parts of red muds are added in reactive tank, add 50 parts of water, stirring makes red mud
It is dispersed in water, adds 60 parts of weathered coals, 5 parts of iron ammonium sulfate, 8 parts of potassium dihydrogen phosphate, 3 parts of zinc sulfate, 0.5 part of boric acid,
8 parts of calcium chelating agent；Mixing, is heated to 60 DEG C~100 DEG C, mixed material is ground by colloid mill, passes through various materials
Grinding is sufficiently mixed uniform, reaction completely.Red mud and rudimentary coal and iron ammonium sulfate, potassium dihydrogen phosphate, zinc sulfate, boric acid, calcium
7.0~8.5, pH value is controlled by adjusting the ratio of red mud and rudimentary coal for the pH value control of material after chelating agent reaction completely
System.Material after reaction completely is dried or dried below 160 DEG C, as humic acid calcium silicate fertilizer.
Embodiment 2
A kind of preparation method of humic acid calcium silicate fertilizer based on red mud, raw material is using red mud, weathered coal, ferrous sulfate
Ammonium, potassium dihydrogen phosphate, zinc sulfate, boric acid, calcium chelating agent, the mass ratio of each component are：100 parts of red mud, 60~80 parts of lignite, sulphur
Sour 8 parts of ferrous ammonium, 6 parts of potassium dihydrogen phosphate, 5 parts of zinc sulfate, 1 part of boric acid, 5 parts of calcium chelating agent；
Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production oxidation
Caused red mud in aluminium technique；
Wherein lignite, its content of humic acid are 70%；
Preparation process is：First measured 100 parts of red muds are added in reactive tank, add 60 parts of water, stirring makes red mud
It is dispersed in water, adds 40 parts of lignite, 8 parts of iron ammonium sulfate, 6 parts of potassium dihydrogen phosphate, 5 parts of zinc sulfate, 1 part of boric acid, calcium chela
5 parts of mixture, mixing, is heated to 60 DEG C~100 DEG C, mixed material is ground by colloid mill, various materials is passed through grinding
It is sufficiently mixed uniform, reaction completely.Red mud and rudimentary coal and iron ammonium sulfate, potassium dihydrogen phosphate, zinc sulfate, boric acid, calcium chelating
7.0~8.5, pH value is controlled by adjusting the ratio of red mud and rudimentary coal for the pH value control of material after agent reaction completely.Instead
Material after answering completely is dried or dried below 160 DEG C, as humic acid calcium silicate fertilizer.
The present invention can effectively change the property of red mud, reduce the alkalescence of red mud, convert the silica calcium oxide in red mud
Utilization is easily absorbed by crops for the efficient oxidation silicon calcium oxide；Simultaneously add humic acid can improved soil, promote crop pair
The absorption of silica calcium oxide；Increase iron ammonium sulfate, dipotassium hydrogen phosphate, zinc sulfate, boric acid both supplemented with the nitrogen needed for crop
The nutrients such as phosphorus potassium sulphur zinc ferro-boron, again using the activity of silica in the faintly acid enhancing red mud of these materials, promote silicon
Element absorbs；Increasing calcium chelating agent collaboration humic acid makes the inorganic chemical calcium in red mud be converted into organic calcium, improves calcium
Element absorbs.Preparation technology of the present invention is simple, and cost is low, and takes full advantage of waste red mud residues, has preferably economical
Benefit and social benefit.
Claims (2)
- A kind of 1. humic acid calcium silicate fertilizer based on red mud, it is characterised in that：It is prepared by following raw material, the matter of each component Measuring ratio is：100 parts of red mud, rudimentary 40~80 parts of coal, 5~10 parts of iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, zinc sulfate 3~5 Part, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production aluminum oxide work Caused red mud in skill；Wherein rudimentary coal includes weathered coal and lignite, and its content of humic acid is 20%~70%.
- 2. a kind of preparation method of humic acid calcium silicate fertilizer based on red mud, it is prepared by following raw material, the matter of each component Measuring ratio is：100 parts of red mud, rudimentary 40~80 parts of coal, 5~10 parts of iron ammonium sulfate, 3~8 parts of potassium dihydrogen phosphate, zinc sulfate 3~5 Part, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent；Wherein red mud is caused discarded object in alumina producing, including Bayer process, sintering process and combination method production aluminum oxide work Caused red mud in skill；Wherein rudimentary coal includes weathered coal and lignite, and its content of humic acid is 20%~70%；It is characterized in that：Preparation method is：First measured 100 parts of red muds are added in reactive tank, add 50 parts~60 parts Water, stirring are dispersed in water red mud, add 40~80 parts of rudimentary 5~10 parts of coals and iron ammonium sulfate, and potassium dihydrogen phosphate 3~ 8 parts, 3~5 parts of zinc sulfate, 0.5~1 part of boric acid, 3~8 parts of calcium chelating agent, mixing, 60 DEG C~100 DEG C are heated to, mixed material It is ground by colloid mill, various materials is sufficiently mixed by grinding, uniform, reaction is complete；Red mud and rudimentary coal and sulfuric acid The pH value control of material is 7.0~8.5 after ferrous ammonium, dipotassium hydrogen phosphate, zinc sulfate, boric acid, calcium chelating agent reaction completely, pH value Controlled by adjusting the ratio of red mud and rudimentary coal；Material after reaction completely is dried or dried below 160 DEG C, is corruption Grow sour calcium silicate fertilizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711186374.7A CN107892630A (en) | 2017-11-20 | 2017-11-20 | A kind of humic acid calcium silicate fertilizer based on red mud and preparation method thereof |
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| CN201711186374.7A CN107892630A (en) | 2017-11-20 | 2017-11-20 | A kind of humic acid calcium silicate fertilizer based on red mud and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227181A1 (en) * | 2021-04-28 | 2022-11-03 | 东北大学 | Method for preparing silicon-potassium-calcium compound fertilizer by using calcium-containing red mud |
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|---|---|---|---|---|
| CN101440324A (en) * | 2008-12-24 | 2009-05-27 | 贵州平坝宏大铝化工有限公司 | Comprehensive utilization of Bayer process red mud |
| CN105330476A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Red mud-assisted soil remediation fertilizer |
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2017
- 2017-11-20 CN CN201711186374.7A patent/CN107892630A/en active Pending
Patent Citations (7)
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| CN105384503A (en) * | 2015-11-10 | 2016-03-09 | 无锡市路华肥料科技有限公司 | Rice blast preventing fertilizer |
| CN105948914A (en) * | 2016-05-06 | 2016-09-21 | 胡玉清 | Red mud composite fertilizer and preparation method thereof |
| CN106431779A (en) * | 2016-12-28 | 2017-02-22 | 贵州大学 | Phenanthrene-contaminated soil restoring fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227181A1 (en) * | 2021-04-28 | 2022-11-03 | 东北大学 | Method for preparing silicon-potassium-calcium compound fertilizer by using calcium-containing red mud |
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Application publication date: 20180410 |
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