CN105036845A - Ca, Mg, Si and P multiple-effect fertilizer and preparation method thereof - Google Patents
Ca, Mg, Si and P multiple-effect fertilizer and preparation method thereof Download PDFInfo
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- CN105036845A CN105036845A CN201510370898.6A CN201510370898A CN105036845A CN 105036845 A CN105036845 A CN 105036845A CN 201510370898 A CN201510370898 A CN 201510370898A CN 105036845 A CN105036845 A CN 105036845A
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Abstract
The invention discloses a Ca, Mg, Si and P multiple-effect fertilizer and a preparation method thereof. The multiple-effect fertilizer is prepared by raw materials in parts by weight: 40- 60 parts of slag produced by yellow phosphorus and tailings washed by phosphorus concentrate, 45-58 parts of dolomite, 2-8 parts of silica, 20-25 parts of coke through fusing. The multiple-effect fertilizer has more than or equal to 35% of effective state calcium oxide, more than or equal to 8% of effective state magnesium oxide, more than or equal to 15% of effective state silicon oxide, more than or equal to 6% of effective state phosphorus pentoxide and more than or equal to 9 of PH. Pollution to environment caused by furnace slag produced by yellow phosphorus and tailings washed by phosphorus concentrate, waste is changed to things of value, and resource utilization of industrial waste slag is realized; the Ca, Mg, Si and P multiple-effect fertilizer produced by the waste slag and tailings has a basicity of more than 8.5%, can effectively improve PH value of acid soil after being applied to the acid soil to keep the soil neutral or alkaline, an effectively improve hardening soil; the multi-effect fertilizer is low in P content and high in Si and Ca content and suitable for current soil condition in China.
Description
Technical field
The invention belongs to chemical fertilizer field, relate in particular to a kind of calcium magnesium silicon phosphorus multiple-effect fertile, also relate to its preparation method simultaneously.
Background technology
Phosphorite Resources in China is abundant, reserves are large, and yellow phosphorus is a kind of important industrial chemicals, the especially basic material of series of phosphate product, the product derived from by it existing more than 130 at present.As the intermediates of thermal phosphoric acid, along with the continuous progress of science and technology, the requirement of yellow phosphorus grows with each passing day.The mine tailing of phosphorus concentrate washing fails to be fully utilized, then can cause the waste of resource, appropriation of land and the pollution to environment.Accordingly, the slag produced in phosphorus production process also increases thereupon, and stacking without controlling of yellow phosphorus furnace slag, very easily causes expendable pollution to the air of periphery, water, soil and ecotope.
Acid soil has lower pH value, and be the limiting factor affecting plant growth on such soil, soil acidification can increase the weight of soil compaction, and cause fertilizer loss serious, utilization rate of fertilizer is not enough; And domestic soil is in phosphorus state of saturation at present, calcium deficiency, magnesium, element silicon.
Summary of the invention
Object of the present invention, is to provide a kind of calcium magnesium silicon phosphorus multiple-effect fertilizer and preparation method thereof.The present invention utilizes the slag of phosphorus production and the Tailings mixture of phosphorus concentrate washing, produces the calcium magnesium silicon phosphorus multiple-effect being conducive to crop growth fertile, turns waste into wealth, achieve the recycling of industrial residue; In acid soil, apply calcium magnesium silicon phosphorus multiple-effect of the present invention fertile, effectively can improve the pH value of acid soil, make the neutral or meta-alkalescence of Soil conservation, effectively improvement acidity hardens soil.
The present invention realizes like this.Calcium magnesium silicon phosphorus multiple-effect is fertile, and it is with the raw material of following weight proportion, and the slag of phosphorus production and mine tailing 40-60 part of phosphorus concentrate washing, rhombspar 45-58 part, silica 2-8 part, coke 20-25 part, make through melting.
Aforesaid calcium magnesium silicon phosphorus multiple-effect is fertile, the slag of described phosphorus production and the mine tailing of phosphorus concentrate washing refer to the mixture of the mine tailing of waste residue and the phosphorus concentrate washing of discharging in phosphorus production process, wherein, the weight ratio of the slag of phosphorus production and the mine tailing of phosphorus concentrate washing is 1:2.0 ~ 2.5.
Aforesaid calcium magnesium silicon phosphorus multiple-effect is fertile, and in described rhombspar, content of magnesia is more than 20%, and the content of calcium oxide is more than 28%.
Aforesaid calcium magnesium silicon phosphorus multiple-effect is fertile, available state calcium oxide >=35% in described calcium magnesium silicon phosphorus multiple-effect fertilizer, available state magnesium oxide >=8%, available state silicon oxide >=15%, available state Vanadium Pentoxide in FLAKES >=6%, pH value >=9.
The preparation method of calcium magnesium silicon phosphorus multiple-effect fertilizer of the present invention, prepares in the steps below:
1) broken: the mine tailing of the slag of phosphorus production and the washing of phosphorus concentrate is broken for 60-70mm, and rhombspar is broken for 50-55mm, and silica is broken for 40-60mm, and coke is broken for 30-60mm.
2) proportioning raw materials: by the raw material of weight proportion according to claim 1;
3) when blast furnace temperature rises to 1300 DEG C, by step 2) in the raw material blending of weight proportion pour in feed bin, be fed into stove immediately, through 3-4 as a child, melt flowed out from the discharge port of blast furnace, obtained A product;
4) by the water shrend of A product, B product are obtained;
5) be filtered dry by B product, about ball milling to 80 orders, packaging, gets product.
Compared with the prior art, the present invention has following beneficial effect:
(1) mine tailing of the slag and the washing of phosphorus concentrate that can eliminate phosphorus production, to the pollution of environment, is turned waste into wealth.
(2) waste residue and mine tailing is utilized to produce to be beneficial to the calcium magnesium silicon phosphorus multiple-effect of crop growth fertile, basicity reaches more than 8.5%, in acid soil, apply calcium magnesium silicon phosphorus multiple-effect of the present invention fertile, effectively can improve the pH value of acid soil, make Soil conservation neutrality or meta-alkalescence.
(3) be not only supplied to the nutritive elements such as crop calcium, magnesium, silicon, phosphorus giving in crop fertilization process, effectively improvement acidity hardens soil simultaneously, improve utilization rate of fertilizer, and production cost reduces 30%.
(4) in calcium magnesium silicon phosphorus multiple-effect fertilizer of the present invention, phosphorus content is low, and calcium, magnesium, silicone content are high, adapt to domestic current soil regime.
Embodiment
Embodiment 1.
(1) broken: the mine tailing of the slag of phosphorus production and the washing of phosphorus concentrate is broken for 60-70mm, and rhombspar is broken for 50-55mm, and silica is broken for 40-60mm, and coke is broken for 30-60mm.
(2) raw material of following weight proportion is got: the slag of phosphorus production and mine tailing 40kg, rhombspar 45kg, silica 2kg, the coke 20kg of the washing of phosphorus concentrate;
(3) when blast furnace temperature rises to 1300 DEG C, mine tailing 40kg, the rhombspar 45kg of the slag of phosphorus production and the washing of phosphorus concentrate, silica 2kg, coke 20kg mixing are poured in feed bin, is fed into stove immediately, through 3-4 as a child, melt flows out from the discharge port of blast furnace, obtains A product;
(4) by the water shrend of A product, B product are obtained;
(5) be filtered dry by B product, about ball milling to 80 orders, packaging, gets product.
Finished product contains available state calcium oxide 36%, available state magnesium oxide 8%, available state silicon oxide 15.6%, available state Vanadium Pentoxide in FLAKES 6.5%, pH value=9.1.
Embodiment 2.
(1) broken: the mine tailing of the slag of phosphorus production and the washing of phosphorus concentrate is broken for 60-70mm, and rhombspar is broken for 50-55mm, and silica is broken for 40-60mm, and coke is broken for 30-60mm.
(2) raw material of following weight proportion is got: the slag of phosphorus production and mine tailing 50kg, rhombspar 52kg, silica 5kg, the coke 22kg of the washing of phosphorus concentrate;
(3) when blast furnace temperature rises to more than 1300 DEG C, mine tailing 50kg, the rhombspar 52kg of the slag of phosphorus production and the washing of phosphorus concentrate, silica 5kg, coke 22kg mixing are poured in feed bin, is fed into stove immediately, through 3-4 as a child, melt flows out from the discharge port of blast furnace, obtains A product;
(4) by the water shrend of A product, B product are obtained;
(5) be filtered dry by B product, about ball milling to 80 orders, packaging, gets product.
Finished product contains available state calcium oxide 37.5%, available state magnesium oxide 8.1%, available state silicon oxide 16.2%, available state Vanadium Pentoxide in FLAKES 6.9%, pH value=9.2.
Embodiment 3.
(1) broken: the mine tailing of the slag of phosphorus production and the washing of phosphorus concentrate is broken for 60-70mm, and rhombspar is broken for 50-55mm, and silica is broken for 40-60mm, and coke is broken for 30-60mm.
(2) raw material of following weight proportion is got: the slag of phosphorus production and mine tailing 60kg, rhombspar 58kg, silica 8kg, the coke 25kg of the washing of phosphorus concentrate;
(3) when blast furnace temperature rises to more than 1300 DEG C, mine tailing 60kg, the rhombspar 58kg of the slag of phosphorus production and the washing of phosphorus concentrate, silica 8kg, coke 25kg mixing are poured in feed bin, is fed into stove immediately, through 3-4 as a child, melt flows out from the discharge port of blast furnace, obtains A product;
(4) by the water shrend of A product, B product are obtained;
(5) be filtered dry by B product, about ball milling to 80 orders, packaging, gets product.
Finished product contains available state calcium oxide 37.9%, available state magnesium oxide 8.9%, available state silicon oxide 16.7%, available state Vanadium Pentoxide in FLAKES 7.1%, pH value=9.5.
Claims (5)
1. a calcium magnesium silicon phosphorus multiple-effect is fertile, it is characterized in that: it is with the raw material of following weight proportion,
The slag of phosphorus production and mine tailing 40-60 part of phosphorus concentrate washing, rhombspar 45-58 part, silica 2-8 part, coke 20-25 part, make through melting.
2. calcium magnesium silicon phosphorus multiple-effect as claimed in claim 1 is fertile, it is characterized in that: the slag of described phosphorus production and the mine tailing of phosphorus concentrate washing refer to the mixture of the mine tailing of waste residue and the phosphorus concentrate washing of discharging in phosphorus production process, wherein, the weight ratio of the slag of phosphorus production and the mine tailing of phosphorus concentrate washing is 1:2.0 ~ 2.5.
3. calcium magnesium silicon phosphorus multiple-effect as claimed in claim 1 is fertile, and it is characterized in that: in described rhombspar, content of magnesia is more than 20%, the content of calcium oxide is more than 28%.
4. as the calcium magnesium silicon phosphorus multiple-effect as described in arbitrary in claims 1 to 3 is fertile, it is characterized in that: available state calcium oxide >=35% in described calcium magnesium silicon phosphorus multiple-effect fertilizer, available state magnesium oxide >=8%, available state silicon oxide >=15%, available state Vanadium Pentoxide in FLAKES >=6%, pH value >=9.
5. a preparation method for calcium magnesium silicon phosphorus multiple-effect fertilizer, is characterized in that: prepare in the steps below:
1) broken: the mine tailing of the slag of phosphorus production and the washing of phosphorus concentrate is broken for 60-70mm, and rhombspar is broken for 50-55mm, and silica is broken for 40-60mm, and coke is broken for 30-60mm;
2) proportioning raw materials: by the raw material of weight proportion according to claim 1;
3) when blast furnace temperature rises to 1300 DEG C, by step 2) in the raw material blending of weight proportion pour in feed bin, be fed into stove immediately, through 3-4 as a child, melt flowed out from the discharge port of blast furnace, obtained A product;
4) by the water shrend of A product, B product are obtained;
5) be filtered dry by B product, about ball milling to 80 orders, packaging, gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510370898.6A CN105036845A (en) | 2015-06-30 | 2015-06-30 | Ca, Mg, Si and P multiple-effect fertilizer and preparation method thereof |
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| CN201510370898.6A CN105036845A (en) | 2015-06-30 | 2015-06-30 | Ca, Mg, Si and P multiple-effect fertilizer and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556131A (en) * | 2017-08-30 | 2018-01-09 | 北京吉宏峰五和农业科技有限公司 | A kind of water-soluble silicon calcium and magnesium liquid soil conditioner and preparation method thereof |
| CN110642646A (en) * | 2019-10-30 | 2020-01-03 | 福建桑玛作物营养科技有限公司 | Method for preparing calcium magnesium phosphate fertilizer from phosphorus-containing waste |
| CN112694363A (en) * | 2020-12-02 | 2021-04-23 | 辽阳钢铁有限公司 | Device, system and process for producing organic compound fertilizer by utilizing metallurgical slag |
| CN114436681A (en) * | 2022-03-01 | 2022-05-06 | 郑州大学 | Method for producing calcium magnesium phosphate fertilizer without adding flux |
| CN114478077A (en) * | 2022-03-01 | 2022-05-13 | 郑州大学 | Method for preparing calcium magnesium phosphate fertilizer by using activated calcium silicon |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1657507A (en) * | 2005-02-06 | 2005-08-24 | 贵州省瓮安兴农磷化工有限责任公司 | Phosphorus potassium silicon magnesium multi-element-mineral fertilizer and its production method |
| CN101531351A (en) * | 2009-03-17 | 2009-09-16 | 车建青 | Method for preparing yellow phosphorus by low or middle grade phosphorus ore |
| CN101747090A (en) * | 2009-12-14 | 2010-06-23 | 云南省化工研究院 | Method for preparing calcium magnesium phosphate fertilizer by utilizing phosphorite flotation tailing blast furnace method |
| CN103086779A (en) * | 2013-01-10 | 2013-05-08 | 贵州金正大生态工程有限公司 | Method for producing alkaline fertilizer by using phosphate rock tailings or low-grade phosphate rock through blast furnace process |
-
2015
- 2015-06-30 CN CN201510370898.6A patent/CN105036845A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657507A (en) * | 2005-02-06 | 2005-08-24 | 贵州省瓮安兴农磷化工有限责任公司 | Phosphorus potassium silicon magnesium multi-element-mineral fertilizer and its production method |
| CN101531351A (en) * | 2009-03-17 | 2009-09-16 | 车建青 | Method for preparing yellow phosphorus by low or middle grade phosphorus ore |
| CN101747090A (en) * | 2009-12-14 | 2010-06-23 | 云南省化工研究院 | Method for preparing calcium magnesium phosphate fertilizer by utilizing phosphorite flotation tailing blast furnace method |
| CN103086779A (en) * | 2013-01-10 | 2013-05-08 | 贵州金正大生态工程有限公司 | Method for producing alkaline fertilizer by using phosphate rock tailings or low-grade phosphate rock through blast furnace process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107556131A (en) * | 2017-08-30 | 2018-01-09 | 北京吉宏峰五和农业科技有限公司 | A kind of water-soluble silicon calcium and magnesium liquid soil conditioner and preparation method thereof |
| CN110642646A (en) * | 2019-10-30 | 2020-01-03 | 福建桑玛作物营养科技有限公司 | Method for preparing calcium magnesium phosphate fertilizer from phosphorus-containing waste |
| CN112694363A (en) * | 2020-12-02 | 2021-04-23 | 辽阳钢铁有限公司 | Device, system and process for producing organic compound fertilizer by utilizing metallurgical slag |
| CN114436681A (en) * | 2022-03-01 | 2022-05-06 | 郑州大学 | Method for producing calcium magnesium phosphate fertilizer without adding flux |
| CN114478077A (en) * | 2022-03-01 | 2022-05-13 | 郑州大学 | Method for preparing calcium magnesium phosphate fertilizer by using activated calcium silicon |
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