WO2001049635A1 - Fertilisant forme de verre-oligoelements et son procede de fabrication - Google Patents

Fertilisant forme de verre-oligoelements et son procede de fabrication Download PDF

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Publication number
WO2001049635A1
WO2001049635A1 PCT/CN2001/000003 CN0100003W WO0149635A1 WO 2001049635 A1 WO2001049635 A1 WO 2001049635A1 CN 0100003 W CN0100003 W CN 0100003W WO 0149635 A1 WO0149635 A1 WO 0149635A1
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WO
WIPO (PCT)
Prior art keywords
fertilizer
glass
coal
glass fertilizer
ore
Prior art date
Application number
PCT/CN2001/000003
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English (en)
Chinese (zh)
Inventor
Shanmao Zhao
Zhao Zhang
Dazhuang Xiao
Original Assignee
Shanmao Zhao
Zhao Zhang
Dazhuang Xiao
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanmao Zhao, Zhao Zhang, Dazhuang Xiao filed Critical Shanmao Zhao
Priority to AU23440/01A priority Critical patent/AU2344001A/en
Publication of WO2001049635A1 publication Critical patent/WO2001049635A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C12/00—Powdered glass; Bead compositions

Definitions

  • the present invention relates to a compound fertilizer, and particularly to a functional glass trace element fertilizer (glass fertilizer for short) that is directly converted from coal ash slag and a method for manufacturing the same.
  • a functional glass trace element fertilizer glass fertilizer for short
  • BACKGROUND In normal growth of plants, in addition to absorbing proper amounts of nitrogen, phosphorus, and potassium, medium elements (Ca, Mg, Si, S, etc.) and trace elements (B, Zn, Mo, Cu, Co, Mn, Fe, etc.), these medium and trace elements are also indispensable to the human body.
  • This method can produce functional glass fertilizer required for plant growth and human health, but has the following disadvantages: (1) high energy consumption, which consumes about 310Kg of coke per ton ; (2) high consumption, which consumes about 1160 ⁇ 1300Kg of ore per ton ; (3) severe pollution, due to the high temperature combustion, flue gas into the atmosphere not only NOx, SO 2 is high, and CO is high; (4) high costs, costs while polluting manure produced per ton of about 1000 If the equipment for denitrification, desulfurization, and CO removal is added, the cost will be as high as about 1,500 yuan, so it is difficult to promote the application of this method.
  • the object of the present invention is to overcome the shortcomings and disadvantages of the prior art, and to provide a glass fertilizer with low cost, no pollution, and containing a variety of elements required by the human body, especially a variety of trace elements.
  • the main technical solutions of the present invention are as follows: A kind of glass fertilizer using coal ash slag as its raw material, its main components include:
  • a method for preparing glass fertilizer using coal ash slag as a raw material includes:
  • step b Process the glass slurry obtained in step a into powdery glass fertilizer.
  • the vitrification additive described in step a is selected from the group consisting of phosphogypsum, serpentine, forsterite, limestone, quartz sand, silica, dolomite, and magnesite.
  • step a further comprises the simultaneous addition of manganese, zinc, copper, molybdenum, chromium, tin, nickel-
  • composition and content of the glass fertilizer of the present invention (based on glass fertilizer as 100):
  • the content of CoO, Cr 2 O 3 , SnO 2 , NiO, V 2 O 5 is 0.00 2%, and other B, S, F, and Na 2 O are trace amounts.
  • the specific preparation method of the glass fertilizer of the present invention :
  • Coal, vitrification additives, and functional additives are added to the liquid slagging boiler at the same time, and burned at 1700 ⁇ 180 ° C to generate an irregular network of molten glass slurry and flue gas.
  • the flue gas is discharged and treated separately;
  • the glass slurry flowing out of the combustion chamber in step a is first quenched and quenched with water, and then dried to a moisture content of less than 0.5%, and finally ground into a powder to obtain the desired finished product;
  • the vitrification additive described in step a It is selected from ores such as phosphogypsum, serpentine, forsterite, limestone, quartz sand, silica, dolomite, magnesite, etc., and the amount is added to ensure that the liquid ash discharged from the boiler is a frit paddle with an irregular network,
  • the functional additive described in step a includes ore containing manganese, zinc, copper, molybdenum, chromium, tin, nickel, and vanadium. The added amount should meet the following technical conditions. :
  • the amount of phosphate fertilizer required for the fertilizer supply area F is basically equal to the amount of phosphate fertilizer produced by burning 1 ton of coal with sulfur slag in a liquid slagging boiler;
  • the amount of citrate-soluble CaO, MgO, SiO 2 and CoO required for the fertilizer supply area F is less than or equal to the amount of functional glass fertilizer that should be produced for each ton of coal burned by the boiler and its CaO, MgO,
  • the product of the concentration of SiO 2 and CoO, that is, the amount of CaO, MgO, Si0 2 , CoO (citrate-soluble) contained in the functional glass fertilizer G that should be produced per ton of coal is greater than or equal to the citrate-soluble CaO required by F hectares of farmland each season , MgO, SiO 2 , CoO.
  • the amount of functional glass fertilizers to be produced per ton of coal determined by technical conditions 1, 2 determines the concentration of trace element oxides in the glass after ash slag vitrification; this concentration is called the glass functional concentration The technical requirement for this concentration is that each trace element oxide is in glass
  • the product of the functional concentration and the amount of functional glass fertilizer that should be produced per ton of coal is greater than or equal to the amount of fertilizer required for this elemental oxide by the crops per ton of coal (F ha).
  • the trace elements of the oxide concentration include manganese, zinc, copper, molybdenum, chromium, tin, nickel, and vanadium. For areas polluted by heavy metals, only manganese, zinc, copper and molybdenum can be identified.
  • X 1 The amount of dry-based phosphogypsum (kg / ton of coal) should be added as an additive for each ton of coal determined by vitrification and functionalization of ash. This number is described in the patent number 99127191.2. From the area of fertilizer supply per ton of coal determined above, the amount of functional glass fertilizer that should be produced per ton of coal can be determined as follows:
  • G P F L FG ⁇ 0 / CoO--(2) where: the weight of functional glass fertilizer (kg / ton of coal) should be produced per ton of coal.
  • G ⁇ . The amount of citrus soluble cobalt oxide (kg / Ha) should be applied per hectare determined by farmland tests, which varies with soil and crop.
  • CoO concentration (%) of cobalt oxide in the glass frit of the random network body by coal and other additives in the functional glass fertilizer without the addition of cobalt ore, which is equal to:
  • G PL 10000 Aar (1 -a z ) + X J (1- X J Z ) ------- (4) where: a z — coal ash residue at 170 (TC loss (%)), when calculating Converted to decimals.
  • X' are phosphogypsum, serpentine or forsterite, limestone, quartz sand or silica, dolomite or magnesite, manganese ore, Addition of zinc ore, copper ore, molybdenum ore, chromium ore, tin ore, nickel ore, vanadium ore.
  • G p F t should use the silica concentration percentage SiO 2 determined after vitrification of ash to determine the amount of functional glass fertilizer that should be produced per ton of coal.
  • G P F — functional glass fertilizer (kg / ton of coal) should be produced per ton of coal determined by the SiO 2 concentration in the glass:
  • Another technical feature of functional glass fertilizer is that the ratio between the concentration of each functional element is similar to the element ratio in plants, that is:
  • the functionalized concentration is the concentration after the addition of the trace element ore, and the concentration before the addition is the glass transition concentration.
  • the concentration is formed by the trace elements carried by the coal and the glass transition additive.
  • the functionalized glass gains as follows: The weight of trace element ore after deducting the loss of burning into the glass.
  • the trace elements required for plant growth were mainly supplied by soil or water. Therefore, it is easy to cause trace element imbalances. As a result, the variety of trace elements required by humans from food is incomplete, and the quantity or proportion is imbalanced. And human beings have certain requirements for each nutrient element.
  • step b The water quenching, drying and grinding described in step b are all known methods, that is, the water is quenched from the granulation box below the slagging outlet of the boiler combustion chamber to a granular glass body of less than 10 mm, and then drained in the drain material 3 In ⁇ 4 hours, the water content is reduced to less than 4%, and then the water content is reduced to less than 0.5% by air drying.
  • the conventional silicon fertilizer or glass fertilizer grinding technology is used to directly grind the powdered glass fertilizer.
  • the harmful impurities of glass fertilizer meet the international standards for glass silicon fertilizer, that is, nickel, chromium, and titanium are less than 0.06%, 6%, and 3% (based on effective SiO 2 ).
  • the functional glass fertilizer of the present invention is suitable for use as a base fertilizer with NPK fertilizer.
  • BEST MODE FOR CARRYING OUT THE INVENTION The present invention is further described below with reference to specific examples.
  • This embodiment uses a horizontal cyclone furnace with a slag catching rate of 85%; the coal burning is China Taiyuan Coal.
  • the calorific value is 25600Kj / Kg
  • the base ash content of coal is 21.48%
  • the loss on ignition rate is 0.4%.
  • the ash removal rate is 5%
  • the fly ash remelting rate is 11.76%. 1. See Table 2 for the amount of additives and chemical composition.
  • the experiment adopts a sulfur cycle invention patent ("Boiler Flue Gas Comprehensive Utilization Method" Application No.
  • the glass fertilizer of the present invention is mixed with NPK fertilizer to be used as a base fertilizer for planting rice.
  • the soil element content in the paddy field is shown in Table 4.
  • the fertilizer application rates of NPK + functional glass fertilizer and NPK ternary compound fertilizer are shown in Table 5 respectively.
  • Table 6 The NPK fertilizer label in Table 5 is N: P 2 O 5 : K 2 O 14: 8: 6; please refer to the “Chinese Fertilizer Handbook” for the percentage content of the crop.
  • the content of P in A is 91.7Kg / Ha.
  • the column of "Comparison ⁇ " in Fertilizer B is the ratio in Fertilizer B-the percentage content of the crop.
  • Production and the sulfur cycle technology used in the present invention reduce the dust and laughter emissions from boiler flue gas to zero, reduce NOx by about 97%, and SO 2 by about 90%, which is clean production;
  • Phosphogypsum The phosphogypsum is partially or completely replaced by the phosphogypsum.
  • the phosphogypsum of the present invention is a by-product of phosphoric acid production in the sulfur cycle process, so the cost can be reduced, and pollution of coal ash slag, phosphogypsum, and pyrite slag can be eliminated, so that tritium emissions can be reduced 95%, which can do more with less; (3) the addition of serpentine, quartz sand, dolomite and other ores increased the silicon and magnesium content and increased the degree of vitrification.
  • This water-quenched granular vitreous body has few crystals and high vitreous content in fly ash, making it more viable as a glass fertilizer.
  • the increase in magnesium content makes the calcium-magnesium ratio more reasonable and the fertilizer efficiency increased.
  • This The method of the invention can determine the content of nutrient elements in glass fertilizer according to the comprehensive needs of crops-soil-human body and adjust its formula to reflect the balanced supply of nutrients in order to achieve the purpose of optimizing fertilization; (5) the boiler combustion of the present invention
  • the glass slurry discharged from the chamber can not only make glass fertilizer, but the excess can also be used as raw material for the production of rock wool, thereby ensuring no ash and slag emissions from the boiler.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne des fertilisants formés de verre-oligoéléments et leur procédé de fabrication consistant à mélanger des additifs de vitrification et carbonés jusqu'à obtenir un mélange liquide que l'on introduit dans un four chauffé à haute température, à obtenir une suspension de matière vitrifiée fondue formant un réseau irrégulier, à refroidir la suspension en y ajoutant de l'eau, à la sécher puis à la réduire en poudre afin d'obtenir un fertilisant à teneur en verre. L'invention présente l'avantage d'être bon marché, respectueuse de l'environnement et facile à produire. Compte tenu des besoins des trois éléments interdépendants (culture, sol et êtres humains), le procédé de l'invention optimise l'effet du fertilisant et propose un produit de qualité. Par ailleurs, l'invention concerne un procédé de recyclage des particules solides de carbone.
PCT/CN2001/000003 2000-01-03 2001-01-03 Fertilisant forme de verre-oligoelements et son procede de fabrication WO2001049635A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23440/01A AU2344001A (en) 2000-01-03 2001-01-03 Glass fertilizer and the method for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB00100008XA CN1142122C (zh) 2000-01-03 2000-01-03 一种功能型玻璃肥及其制造方法
CN00100008.X 2000-01-03

Publications (1)

Publication Number Publication Date
WO2001049635A1 true WO2001049635A1 (fr) 2001-07-12

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AU (1) AU2344001A (fr)
WO (1) WO2001049635A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132497A3 (fr) * 2006-05-12 2008-05-02 Mpd Scient S R L Composé fertilisant comprenant une matrice de verre, son procédé de fabrication et ses utilisations
CN104108972A (zh) * 2014-07-08 2014-10-22 深圳市芭田生态工程股份有限公司 一种含纳米硅的天然矿物质肥料及其制备方法
US20140345346A1 (en) * 2011-11-04 2014-11-27 Mineração Curimbaba Ltda. Molten phosphorus-potassium fertilizer, and its preparation process
WO2016132285A1 (fr) * 2015-02-17 2016-08-25 Microfertil S.R.L. Composition d'engrais

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2091893B1 (fr) * 2006-11-06 2013-01-09 Bijam Biosciences Private Limited Produits fertilisants à base de kimberlite
CN101302077B (zh) * 2008-06-06 2010-07-21 西安交通大学 一种利用液态排渣炉熔渣直接生产泡沫玻璃的方法
CN102126873B (zh) * 2011-04-14 2013-10-02 石家庄正中科技有限公司 一种特种微量元素肥料及其制备方法
CN110342829A (zh) * 2019-07-16 2019-10-18 深圳易绿谷屋顶绿化有限公司 一种岩棉及其制备方法
CN111961474A (zh) * 2020-08-10 2020-11-20 山东达源环保工程有限公司 一种重金属污泥土壤修复剂及其制备方法
CN114436707A (zh) * 2020-11-02 2022-05-06 多玛得株式会社 植物栽培用玻璃肥料
CN113286419A (zh) * 2021-07-22 2021-08-20 西安宏星电子浆料科技股份有限公司 一种厚膜电路用多层隔离介质浆料
CN113387574A (zh) * 2021-07-23 2021-09-14 贵州应用技术职业学院 一种基于磷石膏的黑色玻璃及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334908A (en) * 1978-09-29 1982-06-15 Bfg Glassgroup Vitreous fertilizer compositions
JPS60127286A (ja) * 1983-12-09 1985-07-06 日本化学工業株式会社 緩効性溶成珪酸カリ苦土肥料の製造方法
CN1036552A (zh) * 1989-01-20 1989-10-25 淮南田家庵发电厂 粉煤灰磷肥及生产方法
CN1037135A (zh) * 1988-04-25 1989-11-15 沈阳化工学院 利用立式旋风炉直接生产硅酸钾肥料的方法
CN1051344A (zh) * 1989-10-28 1991-05-15 大连轻工业学院 稀土元素和微量元素玻璃肥料
CN1057630A (zh) * 1990-06-18 1992-01-08 訾风兰 一种煤渣玻璃的制造方法
CN1078711A (zh) * 1992-05-12 1993-11-24 北京工业大学 长效无机复合微量元素肥料及制法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334908A (en) * 1978-09-29 1982-06-15 Bfg Glassgroup Vitreous fertilizer compositions
JPS60127286A (ja) * 1983-12-09 1985-07-06 日本化学工業株式会社 緩効性溶成珪酸カリ苦土肥料の製造方法
CN1037135A (zh) * 1988-04-25 1989-11-15 沈阳化工学院 利用立式旋风炉直接生产硅酸钾肥料的方法
CN1036552A (zh) * 1989-01-20 1989-10-25 淮南田家庵发电厂 粉煤灰磷肥及生产方法
CN1051344A (zh) * 1989-10-28 1991-05-15 大连轻工业学院 稀土元素和微量元素玻璃肥料
CN1057630A (zh) * 1990-06-18 1992-01-08 訾风兰 一种煤渣玻璃的制造方法
CN1078711A (zh) * 1992-05-12 1993-11-24 北京工业大学 长效无机复合微量元素肥料及制法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132497A3 (fr) * 2006-05-12 2008-05-02 Mpd Scient S R L Composé fertilisant comprenant une matrice de verre, son procédé de fabrication et ses utilisations
US20140345346A1 (en) * 2011-11-04 2014-11-27 Mineração Curimbaba Ltda. Molten phosphorus-potassium fertilizer, and its preparation process
US9422202B2 (en) * 2011-11-04 2016-08-23 Mineracao Curimbaba Ltda. Molten phosphorus-potassium fertilizer, and its preparation process
CN104108972A (zh) * 2014-07-08 2014-10-22 深圳市芭田生态工程股份有限公司 一种含纳米硅的天然矿物质肥料及其制备方法
WO2016132285A1 (fr) * 2015-02-17 2016-08-25 Microfertil S.R.L. Composition d'engrais

Also Published As

Publication number Publication date
CN1302786A (zh) 2001-07-11
AU2344001A (en) 2001-07-16
CN1142122C (zh) 2004-03-17

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