KR20160132195A - A method for manufacturing controlled-release solid compound fertilizer - Google Patents

A method for manufacturing controlled-release solid compound fertilizer Download PDF

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Publication number
KR20160132195A
KR20160132195A KR1020150063398A KR20150063398A KR20160132195A KR 20160132195 A KR20160132195 A KR 20160132195A KR 1020150063398 A KR1020150063398 A KR 1020150063398A KR 20150063398 A KR20150063398 A KR 20150063398A KR 20160132195 A KR20160132195 A KR 20160132195A
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South Korea
Prior art keywords
fertilizer
weight
granular
compound fertilizer
rock surface
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KR1020150063398A
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Korean (ko)
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KR101721545B1 (en
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이영주
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이영주
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    • 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
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

The present invention relates to a method for producing a granular rock salt granular fertilizer using granular rock wool on the basis of mineral wool which is not used as well as discard rock surfaces after hydroponic cultivation, A method for producing a compound fertilizer, and a method for producing a novel long-acting solid complex fertilizer from the quick-acting liquid-phase compound fertilizer.
The novel long-acting solid complex compound fertilizer produced according to the present invention has the effect of making a siliceous layer on the cell membrane of a plant to make the surface of the leaf harder to reduce the damage of the pest insects and the clothes, Possible solubility or effect of changing into active phosphoric fertilizer. Stronger calyxes can be used to enhance the production of pollen. It is possible to increase the production rate and increase the hardness of leaves and stems of fruits and vegetables. There are various effects.

Description

Technical Field [0001] The present invention relates to a method of manufacturing a solid compound fertilizer,

The present invention relates to a method for producing a granular rock salt granular fertilizer using a newly produced rock wool as well as a waste rock surface after hydroponic cultivation, a method for producing a rapid-acting liquid-phase compound fertilizer comprising calcium nitrate and silicic acid, The present invention relates to a method for producing a sustained-release solid compound fertilizer from a rapid-acting liquid-phase complex fertilizer.

Generally, rock wool is widely used as a solid medium for nutrient solution cultivation. It is considered as an ideal medium because there is no chemical reaction with the nutrient solution during the growing period of the plant. However, It is true.

In addition, since the rock surface is heat-resistant and inorganic, it is impossible to dispose of the incinerator.

Therefore, in view of the problems such as the cost of reclaiming the waste rock surface and the environmental pollution at the time of disposal, silicate fertilizer is currently being manufactured using the waste rock surface and widely used in agriculture.

Published Japanese Patent Application No. 10-1997-0021039 Published Patent No. 10-2001-0009275

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems of the prior art. It is an object of the present invention to provide a method for pulverizing a waste rock surface culture medium after hydroponic cultivation and using the same as a mineral wool as a raw material for the silicate fertilizer of the present invention, Saving and environmental pollution problems.

Another object of the present invention is to provide a method for producing granular rock surface silicate fertilizer by preparing a new rock surface from rock wastes as well as discard rock surfaces after hydroponic cultivation.

It is still another object of the present invention to provide a method for producing a rapid-acting liquid-phase compound fertilizer comprising calcium nitrate and silicic acid using the granular rock surface silicate fertilizer.

Another object of the present invention is to provide a method for producing a sustained-release solid compound fertilizer, which is a pellet molding or a spherical molding, using the quick-acting liquid-phase compound fertilizer.

It is still another object of the present invention to provide a method of producing a sustained-release medium by spraying or pouring a sustained-release solid compound fertilizer, such as the rod-shaped or spherical form, on a hydroponic culture medium such as a pearlite, a peatmoss medium or an organic medium, To increase.

In order to accomplish the above object, according to the present invention, after the hydroponic cultivation, the waste rock surface culture medium is washed to remove salts, granulated to a length of 5 to 20 mm using a pulverizer, and the granular rock surface is directly or indirectly dried Lt; / RTI > to produce a granular rock surface silicate fertilizer; Or a rock surface raw material having the composition shown in the following Table 1 is introduced into a cupola in a crossing manner with a coke, the coke is burned with a blower to melt the raw material at 1550 to 1600 ° C, 7 탆 thick fibers are produced, cooled in a net on a face net and pulverized into small pieces of 5 to 20 mm in length in a cutting mill to prepare siliceous granular fertilizer.

Specification and composition of raw materials
Raw material name
Chemical composition and surface (content) Particle size (㎜)
Mixing ratio
SiO 2 Al 2 O 3 Fe 2 O 3 CaO MgO K 2 O Na 2 O asbestos Granularity Product composition 43 ~ 47 13-18 2 to 8 17 ~ 46 4 to 8 1-2 0.2 to 0.8 radish 5 ~ 7㎛ Raw material composition
1) Limestone 0.5 to 1 0.1 54 radish 50 to 70 10 to 35 2) Andesite 46 to 60 15-25 5 to 13 6-13 1 to 7 radish 30-100 30 to 50 3) Iron slag 28 to 35 9 ~ 15 One 42 to 50 3 to 8 radish 40 to 80 10 to 65 Fuel coke radish 80-100

In order to increase the amount of silicate (SiO 2 ) and the amount of limestone to increase the content of lime (CaO), the composition of the product is increased according to the content of silicate and the content of lime.

Then, 3 to 20% by weight of the granular rock surface silicate fertilizer is put into a stainless dissolving tank, and 60 to 75% by weight of water and 15 to 25% by weight of nitric acid are added successively and stirred while heating to 80 DEG C or less. Granular rock with a thickness of ~ 7 μm Silica fertilizer Lime and silicon are dissolved in fibers and react with nitric acid to produce calcium nitrate Ca (NO 3 ) 2 · 4H 2 O and silicic acid or orthosilicic acid solution, and a lime Ca (OH) 2 solution , The excess nitric acid is neutralized to remove precipitates of aluminum hydroxide Al (OH) 3 and ferric hydroxide Fe (OH) 3 by filtration to produce a rapid-acting liquid-phase compound fertilizer comprising calcium nitrate and silicic acid.

The method for producing calcium nitrate fertilizer according to the present invention is different from the conventional method for producing calcium nitrate fertilizer by reacting limestone and nitric acid. Instead of limestone or lime, nitric acid is reacted with rock surface as a raw material so that calcium nitrate fertilizer and silicate fertilizer are simultaneously liquid It is a new invention to manufacture.

10 to 50% by weight of the quick-acting liquid-phase compound fertilizer produced as described above is mixed with 30 to 40% by weight of a granular rock surface of a flake having a thickness of 5 to 7 탆 and cut into a length of 5 to 20 mm and a zeolite powder 20 To 60% by weight or from 20 to 60% by weight of lime feldspar powder and then introduced into a high-pressure injection molding machine to form a rod-shaped compact having a diameter of 3 to 20 mm and a length of 10 to 50 mm, Is formed into a spherical compact having a size of 3 to 20 mm and then dried to produce a delayed solid complex fertilizer (silicic acid + calcium nitrate + zeolite or lime feldspar). Table 2 below briefly shows examples of formulations for producing the delayed-release solid complex fertilizer.

Formulation example Liquid compound fertilizer Zeolite  Lime feldspar Granular rock face    Sum Formulation Example 1 10 to 50 wt% 20 to 60 wt% 30 to 40 wt% 100 wt% Formulation Example 2 10 to 50 wt% 20 to 60 wt% 30 to 40 wt% 100 wt%

For reference, the chemical composition of raw materials used in the production of the delayed-release solid compound fertilizer of the present invention is shown in Table 3 below.

Raw material
    Chemical ingredient SiO 2 Al 2 O 3 Fe 2 O 3 CaO MgO K 2 O Na 2 O Other Zeolite 66 13 2.0 2.5 0.4 4.02 2.3 9.78 Lime feldspar 43.28 36.62 20.10 Rock face 43 ~ 47 13-18 2 to 8 17 ~ 46 4 to 8 1-2 0.2 to 0.8

The effect of the fertilizer is increased by using the solid composite fertilizer as the rod-shaped formed body or the spherical molded form of the present invention as a cultivation medium for cultivation of cocofelt which is an organic medium, or as a pollen fertilizer and as a silicate and calcium nitrate supplement of vegetable garden vegetables.

According to the present invention, since the discarded rock surface after hydroponic cultivation can be used as a raw material for producing silicate fertilizer on granular rock surface, the manufacturing cost of silicate fertilizer on granular rock surface is reduced, and the raw rock surface to be discarded after hydroponic cultivation is recycled, Of course, it is possible to solve problems such as environmental pollution, and it is possible to produce silicate fertilizer by using disused rock surface culture medium after being used in a plant cultivation farm using a rocky surface culture medium, and using the granular rocky silicate fertilizer as a raw material, And it is possible to easily produce a sustained-release solid compound fertilizer using the quick-acting liquid-phase compound fertilizer as a raw material.

In addition, the natural organic medium, coco peat, is excellent in water retention properties, air permeability and internal characteristics, and is widely used in domestic and overseas cultivation of hydroponics such as tomato, paprika and strawberry. However, The medium has a disadvantage in that the fertilizer effect obtained by the action of silicic acid can not be achieved compared to the crop cultivated in the soil cultivation or the inorganic medium (rocky surface culture medium) because the silicate ingredient contained in the soil is extremely small in the soil, When the new solid compound fertilizer is added to the organic medium as described above, a silicate layer is formed on the cell membrane of the plant to make the surface of the leaf harder to reduce the damage of the insect pests and the clothes, and the effect of acidification around the roots, When converting phosphate fertilizer into soluble or active phosphorous fertilizer capable of working There are various effects such as a lightening effect, a calyx strengthening effect, an effect of increasing the production of pollen by improving the production of pollen, an increase in the hardness of leaves and stems of fruits and vegetables, and a prolonged storage period.

In addition, the solid compound fertilizer according to the present invention is decomposed by moisture, water-soluble silicic acid, water-soluble lime and water-soluble calcium nitrate dissolve rapidly, and the fibrous rock surface slowly dissolves until the cultivation is terminated to release water-soluble silicic acid and lime The effect of the zeolite powder can be replaced by the lime feldspar powder in the production of solid complex fertilizer, and the increase effect of silicate and lime, and the solid complex which is a spherical shaped body or a pellet molding The fertilizer has an effect that it can be used not only as a fertilizer but also as a flux to increase the dissolution rate of the raw material in the manufacture of the rock surface.

Hereinafter, the present invention will be described in detail with reference to Examples. However, it should be understood that the present invention is not limited by the following examples, and that various modifications may be made without departing from the spirit and scope of the present invention.

[Example 1] (Production of silicate fertilizer on granular rock surface)

After the hydroponic cultivation, the waste rock surface culture medium was washed to remove salts, granulated to a length of 5 to 20 mm using a pulverizer, and the granulated rock surface was dried by direct or indirect drying method to prepare granular rock salt granular fertilizer.

[Example 2] (Preparation of silicate fertilizer on granular rock surface)

The rock surface raw material having the composition shown in Table 1 was introduced into a cupola in a crossing manner with coke, and the coke was burned with a blower to melt the raw material at 1550 to 1600 ° C. Mu m in diameter, cooled in a face net, and pulverized in a cutter mill to a length of 5 to 20 mm to produce granular rock surface silicate fertilizer.

Table 4 shows the characteristics and differences of the granular rock surface silicate fertilizer of the present invention and the conventional silicate fertilizer of the present invention.

Comparison of conventional silicate fertilizer with granular rock surface silicate fertilizer of the present invention Types of fertilizer Minimum amount of active ingredient to contain (%) Maximum amount of harmful components that can be contained (%) Other specifications Conventional silicate fertilizer 1) soluble silicic acid (25)
2) Alkali component (40)
3) Usability Goto (2.0) 1) Nickel (0.012)
2) titanium (0.06)
3) Chromium (0.12) Powder degree: 1.7 mm
Passed 98% The granular rock surface silicate fertilizer of the present invention 1) soluble silicic acid (35)
2) Alkali component (42)
3) Usability Goto (2.3) 1) Nickel (0.01)
2) titanium (0.01)
3) Chromium (0.45) Pass more than 90% at 16 mm (wet conditions)

Differences from conventional products: Conventional silicate fertilizer is powdery or granular fertilizer, but the granular rocky silicate fertilizer of the present invention is a fibrous sustained-release fertilizer and can be used as a medium as well as a mixed soil.

[Example 3] (Production of quick-acting liquid-phase complex fertilizer)

12 wt% of the granular rock surface silicate fertilizer prepared as described in Example 1 or Example 2 was put into a stainless dissolving tank and 68 wt% of water and 20 wt% of nitric acid were added in succession, In this case, lime and silicon are dissolved in the granular fertilizer fibers of granular rock with a thickness of 5 ~ 7㎛ and react with nitric acid to produce calcium nitrate Ca (NO 3 ) 2 4H 2 O and silicic acid or orthosilicic acid solution, ) 2 solution to neutralize excess nitric acid to remove precipitates of aluminum hydroxide Al (OH) 3 and ferric hydroxide Fe (OH) 3 by filtration to produce a quick acting liquid composite fertilizer comprising calcium nitrate and silicic acid.

[Example 4] (Production of delayed solid complex fertilizer)

35% by weight of the quick acting liquid composite compound fertilizer prepared as described in Example 3 was mixed with 30% by weight of a granular rock surface of a flake having a thickness of 5 to 7 탆 and cut to a length of 5 to 20 and a zeolite powder 35 By mass or 35% by weight of lime feldspar powder, and the mixture was put into a high-pressure injection molding machine to form a rod-shaped compact having a diameter of 3 to 20 mm and a length of 10 to 50 mm, followed by drying to produce a delayed solid complex compound fertilizer.

[Example 5] (Production of delayed solid complex fertilizer)

35% by weight of the quick acting liquid composite compound fertilizer prepared as described in Example 3 was mixed with 30% by weight of a granular rock surface of a flake having a thickness of 5 to 7 탆 and cut to a length of 5 to 20 and a zeolite powder 35 By weight or 35% by weight of lime feldspar powder, put into a mold-forming machine, molded into a spherical compact having a diameter of 3 to 20 mm, and dried to prepare a delayed solid complex compound fertilizer.

[Example 6] (Preparation of medium)

A solid complex fertilizer which is a rod-shaped formed article (Example 4) or a spherical shaped article (Example 5) prepared as described in Example 4 or Example 5 was sprayed on top of pearlite, peat moss, organic coco peat medium (A molded body or a globular molded body) or a medium in which the medium is slowly dissolved by plugging into the medium (a rod-shaped molded body). Here, the effect of silicic acid has the effect of increasing fruit retention, increasing yield, increasing resistance to insect pests, and decreasing the damage of clothes.

Claims (3)

3 to 20% by weight of granular rocks having a thickness of 5 to 7 μm and a length of 5 to 20 mm, 60 to 75% by weight of water and 15 to 25% by weight of nitric acid are sequentially added to a stainless steel dissolution tank, 10 to 50% by weight of the quick-acting liquid-phase complex compound fertilizer obtained by heating with stirring and mixing 30 to 40% by weight of granular rock surface having a thickness of 5 to 7 μm and a length of 5 to 20 mm and 20 to 60% by weight of zeolite powder, The mixture is mixed with 20 to 60% by weight of the powder, and the mixture is injected into a high-pressure injection molding machine to form a pellet compact having a diameter of 3 to 20 mm and a length of 10 to 50 mm, followed by drying. Gt;
3 to 20% by weight of granular rocks having a thickness of 5 to 7 μm and a length of 5 to 20 mm, 60 to 75% by weight of water and 15 to 25% by weight of nitric acid are sequentially added to a stainless steel dissolution tank, 10 to 50% by weight of the quick-acting liquid-phase complex compound fertilizer obtained by heating with stirring and mixing 30 to 40% by weight of granular rock surface having a thickness of 5 to 7 μm and a length of 5 to 20 mm and 20 to 60% by weight of zeolite powder, Mixing the powder with 20 to 60 wt% of the powder, adding the mixture to a molding machine, and molding the mixture into a spherical compact having a diameter of 3 to 20 mm, followed by drying.
The method according to claim 1 or 2, wherein the shaped body is used as a flux for increasing the dissolution rate of the raw material during the manufacture of the rock surface.


KR1020150063398A 2015-05-06 2015-05-06 A method for manufacturing controlled-release solid compound fertilizer KR101721545B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049276B1 (en) * 2018-05-31 2019-11-27 (주)그린파즈 Attractant for soil-inhabitation vermin and its manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970021039A (en) 1995-10-06 1997-05-28 이영주 Manufacturing method of fertilizer using waste rock wool
KR20010009275A (en) 1999-07-08 2001-02-05 이영주 Method of preparing a siliceous fertilizer using a waste rook wool and a porous siliceous fertilizer produced therefrom
JP2002084880A (en) * 2000-09-08 2002-03-26 Nichias Corp Plant-rearing culture soil containing slow-release fertilizer
KR20110082763A (en) * 2010-01-12 2011-07-20 순천대학교 산학협력단 A method of slow-release fertilizer by using natural zeolite for crops under mulching cultivation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970021039A (en) 1995-10-06 1997-05-28 이영주 Manufacturing method of fertilizer using waste rock wool
KR20010009275A (en) 1999-07-08 2001-02-05 이영주 Method of preparing a siliceous fertilizer using a waste rook wool and a porous siliceous fertilizer produced therefrom
JP2002084880A (en) * 2000-09-08 2002-03-26 Nichias Corp Plant-rearing culture soil containing slow-release fertilizer
KR20110082763A (en) * 2010-01-12 2011-07-20 순천대학교 산학협력단 A method of slow-release fertilizer by using natural zeolite for crops under mulching cultivation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102049276B1 (en) * 2018-05-31 2019-11-27 (주)그린파즈 Attractant for soil-inhabitation vermin and its manufacturing method

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