JPH0288485A - Production of slow acting silicate fertilizer - Google Patents
Production of slow acting silicate fertilizerInfo
- Publication number
- JPH0288485A JPH0288485A JP23813188A JP23813188A JPH0288485A JP H0288485 A JPH0288485 A JP H0288485A JP 23813188 A JP23813188 A JP 23813188A JP 23813188 A JP23813188 A JP 23813188A JP H0288485 A JPH0288485 A JP H0288485A
- Authority
- JP
- Japan
- Prior art keywords
- potassium
- chaff
- dolomite
- iron oxide
- silicic acid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title abstract description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 17
- 239000010459 dolomite Substances 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000011777 magnesium Substances 0.000 claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 3
- 241000209094 Oryza Species 0.000 claims description 27
- 235000007164 Oryza sativa Nutrition 0.000 claims description 27
- 235000009566 rice Nutrition 0.000 claims description 27
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 26
- 235000012239 silicon dioxide Nutrition 0.000 claims description 26
- 239000010903 husk Substances 0.000 claims description 25
- 150000003112 potassium compounds Chemical class 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 14
- 239000002956 ash Substances 0.000 abstract description 12
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011591 potassium Substances 0.000 abstract description 8
- 229910052700 potassium Inorganic materials 0.000 abstract description 8
- 235000013379 molasses Nutrition 0.000 abstract description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract description 4
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 2
- 229920002472 Starch Polymers 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 abstract description 2
- 238000004898 kneading Methods 0.000 abstract description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 abstract description 2
- 235000010413 sodium alginate Nutrition 0.000 abstract description 2
- 239000000661 sodium alginate Substances 0.000 abstract description 2
- 229940005550 sodium alginate Drugs 0.000 abstract description 2
- 235000019698 starch Nutrition 0.000 abstract description 2
- 239000008107 starch Substances 0.000 abstract description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract 3
- 238000005243 fluidization Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 235000011181 potassium carbonates Nutrition 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- -1 5in4 Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004889 fertilizer analysis Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- AICOOMRHRUFYCM-ZRRPKQBOSA-N oxazine, 1 Chemical compound C([C@@H]1[C@H](C(C[C@]2(C)[C@@H]([C@H](C)N(C)C)[C@H](O)C[C@]21C)=O)CC1=CC2)C[C@H]1[C@@]1(C)[C@H]2N=C(C(C)C)OC1 AICOOMRHRUFYCM-ZRRPKQBOSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は、籾殻又は籾殻灰、ドロマイト、カリウム化合
物、酸化鉄及び必要に応じてその他の補助原料から、可
溶性（塩酸溶解性）及びり溶性（クエン酸溶解性）のＣ
ａ、Ｓｉｎ、、Ｆｅ、Ｓｉｎ、、に、Ｃａ５ｉＯ，。Detailed Description of the Invention (Technical Field) The present invention provides soluble (hydrochloric acid soluble) and super soluble (citric acid soluble) rice husk or rice husk ash, dolomite, potassium compounds, iron oxide, and optionally other auxiliary raw materials. C of solubility)
a, Sin, , Fe, Sin, , Ca5iO,.
に、 Ｍｇ５ｉＯ，等を主成分とする緩効性ケイ酸肥料
を製造する方法に関するものである。The present invention relates to a method for producing a slow-release silicate fertilizer containing Mg5iO, etc. as a main component.
（従来技術及びその問題点）
ケイ酸肥料は、稲、麦のようにケイ酸を多く含む作物に
対してその効果が顕著であることが実証されている。ま
た、ケイ酸は直接作物に吸収されなくても土壌に施すこ
とによって活性アルミニウムの害を軽減し、陽イオン交
換容量を増大して養分の流失を防ぐ効果があることなど
が知られている。(Prior Art and its Problems) It has been demonstrated that silicic acid fertilizers have a remarkable effect on crops containing a large amount of silicic acid, such as rice and wheat. Furthermore, even if silicic acid is not directly absorbed by crops, it is known that by applying it to the soil, it can reduce the harm caused by activated aluminum, increase cation exchange capacity, and prevent nutrient loss.
従来、緩効性ケイ酸肥料（通常、緩効性ケイ酸カリ肥料
）の製造方法について種々研究がなされてきたが、いず
れの方法においてもアルミニウムを含有する鉱さい類、
火力発電所から発生するフライアッシュなどの産業排出
物あるいはカリ長石などの天然鉱物をケイ酸原料として
いる。これらのケイ酸原料に含まれるアルミニウム分（
第１表を参照）は、ケイ酸とともに土壌中の主成分を構
成するものであり、植物体中にも多量に取り込まれるが
、植物体内では根に沈積するものが大部分で、リンの不
活性化やカルシウム、マグネシウムの吸収抑制を起こす
。従って、茶樹など特定の好酸性。In the past, various studies have been conducted on methods for producing slow-release silicate fertilizers (usually slow-release potassium silicate fertilizers), but in all of these methods, aluminum-containing slag,
The silicic acid raw material is industrial waste such as fly ash generated from thermal power plants or natural minerals such as potassium feldspar. The aluminum content contained in these silicic acid raw materials (
(See Table 1) constitutes the main component of soil together with silicic acid, and is also taken up into plants in large quantities, but most of it is deposited in the roots, and phosphorus is depleted. It causes activation and inhibition of absorption of calcium and magnesium. Therefore, certain acidophilic species such as tea plants.
あるいは耐酸性植物を除いては、その毒性が重要視され
、植物に対する酸性障害の一因とみなされており、一般
の植生には有害元素の一つである。In addition, except for acid-resistant plants, its toxicity is considered important, and it is considered to be a cause of acid damage to plants, and is one of the elements harmful to general vegetation.
それ故、アルミニウムを含有しない、あるいはその含有
量が極めて微量の肥料を製造するためにはアルミニウム
を含有しない、あるいはその含有量が極めて微量である
原料を使用する必要がある。Therefore, in order to produce a fertilizer that does not contain aluminum or has a very small amount of aluminum, it is necessary to use raw materials that do not contain aluminum or have a very small amount of aluminum.
第１表
（発明の課題）
本発明は、アルミニウムを含有しない緩効性ケイ酸肥料
の製造方法を提供することをその課題とする。Table 1 (Objectives of the Invention) An object of the present invention is to provide a method for producing a slow-release silicic acid fertilizer that does not contain aluminum.
（課題を解決するための手段）
そこで本発明者らは、前記課題を解決すべく種々研究を
行った結果、植生に有害なアルミニウムをほとんど含有
しない米作地帯から大量に発生する籾殻や籾殻灰、ドロ
マイト、カリウム化合物及び必要に応じての酸化鉄を原
料としてその粒状混合物を調製し、次いでこれを９００
〜９５０℃の温度で焼成して籾殻又は籾殻灰中のケイ酸
成分、ドロマイト中のカルシウム成分、マグネシウム成
分、カリウム化合物、酸化鉄を反応させることによって
、前記課題を解決し得ることを見出し、本発明を完成し
た。(Means for Solving the Problems) Therefore, as a result of conducting various studies to solve the above-mentioned problems, the present inventors found that rice husks and rice husk ash are produced in large quantities in rice cultivation areas that contain almost no aluminum, which is harmful to vegetation. , dolomite, potassium compounds and optional iron oxide as raw materials to prepare a granular mixture thereof, which is then heated to 900%
We have discovered that the above problem can be solved by firing at a temperature of ~950°C to react the silicic acid component in the rice husk or rice husk ash, the calcium component, the magnesium component, the potassium compound, and the iron oxide in the dolomite. Completed the invention.
即ち、本発明によれば、アルミニウムを含有しない籾殻
又は籾殻灰をケイ酸原料にして、このケイ酸原料に、ド
ロマイト、カリウム化合物及び必要に応じて酸化鉄を添
加し、さらに液体バインダーを添加して混練し、造粒し
、乾燥した後、流動炉で焼成して籾殻又は籾殻灰中のケ
イ酸成分と、ドロマイト中のカルシウム成分及びマグネ
シウム成分と、カリウム化合物と、必要に応じて添加さ
れる酸化鉄とを反応させることを特徴とする緩効性ケイ
酸肥料の製造方法が提供される。That is, according to the present invention, rice husk or rice husk ash that does not contain aluminum is used as a silicic acid raw material, and dolomite, a potassium compound, and if necessary iron oxide are added to this silicic acid raw material, and a liquid binder is further added. After kneading, granulating, and drying, it is fired in a fluidized furnace to remove the silicic acid component in the rice husk or rice husk ash, the calcium component and magnesium component in the dolomite, and the potassium compound, and add as necessary. Provided is a method for producing a slow-release silicate fertilizer characterized by reacting it with iron oxide.
本発明の方法においては、ケイ酸原料として。In the method of the present invention, as a silicic acid raw material.
籾殻又は籾殻灰を用いる。このケイ酸原料は、後記の第
２表かられかるように、シリカ成分を主成分とするもの
で、アルミニウム成分は含まない。Use rice husk or rice husk ash. As shown in Table 2 below, this silicic acid raw material contains a silica component as a main component and does not contain an aluminum component.
本発明を実施するには、先ず、このケイ酸原料に、ドロ
マイト、カリウム化合物、必要に応じて酸化鉄を加え、
さらに液体バインダー添加し、混練し、造粒し、乾燥し
て、造粒混合を形成する。To carry out the present invention, first, dolomite, a potassium compound, and if necessary iron oxide are added to this silicic acid raw material,
Further liquid binder is added, kneaded, granulated, and dried to form a granulated mixture.
この場合、カリウム化合物としては、炭准カリウムや水
酸化カリウム等が用いられる。液体バインダーとしては
、廃糖蜜の他、でん粉、ポリビニルアルコール、アルギ
ン酸ソーダ等の水溶性高分子の水溶液が用いられる。In this case, potassium charcoal, potassium hydroxide, etc. are used as the potassium compound. As the liquid binder, in addition to blackstrap molasses, an aqueous solution of a water-soluble polymer such as starch, polyvinyl alcohol, or sodium alginate is used.
次に、前記のようにして得られた造粒混合物を高温、好
ましくは９００〜９５０℃の温度で焼成する。Next, the granulated mixture obtained as described above is fired at a high temperature, preferably at a temperature of 900 to 950°C.
この焼成により、籾殻又は籾殻灰中のケイ酸成分、ドロ
マイト中のカルシウム成分及びマグネシウム成分、カリ
ウム化合物及び酸化鉄が各反応して、ケイ階塩化合物１
例えば、 Ｃａ、５ｉｎ４、Ｆｅ、 ５ｉｎ４、Ｋ２Ｃ
ａＳｉＯいに２ＭｇＳｉＯ４を主成分とするケイ酸肥料
が得られる。By this calcination, the silicic acid component in the rice husk or rice husk ash, the calcium component and magnesium component in the dolomite, the potassium compound, and the iron oxide react to form a silicic salt compound 1.
For example, Ca, 5in4, Fe, 5in4, K2C
A silicate fertilizer containing aSiO2MgSiO4 as a main component is obtained.
（発明の効果）
本発明のケイ酸肥料は、従来のケイ酸肥料とは異なり、
植生に有害なアルミニウム成分を実質的に含まないもの
で、アルミニウム害を生じることのないものである。ま
た、“このケイ酸肥料は、緩効性を有するもので、植物
が根から分泌する弱酸によって溶解され、植物に吸収さ
れる。(Effect of the invention) The silicate fertilizer of the present invention is different from conventional silicate fertilizers,
It does not substantially contain aluminum components that are harmful to vegetation, and does not cause any harm to aluminum. Additionally, ``This silicate fertilizer is slow-release, so it is dissolved by the weak acids secreted by plants from their roots and absorbed by the plants.
（実施例）
次に、本発明の実施例および比較例を挙げて、具体的に
説明する。なお、原料として用いた籾殻、籾殻灰および
ドロマイトの化学組成を第２表に示した。また、各側で
試製された緩効性ケイ酸肥料の性状を第４表、第５表に
、そして比較例で試製された焼成物の性状を第６表にそ
れぞれ示した。(Example) Next, examples and comparative examples of the present invention will be given and specifically explained. The chemical compositions of rice husk, rice husk ash, and dolomite used as raw materials are shown in Table 2. Further, the properties of the slow-release silicate fertilizers trial-manufactured on each side are shown in Tables 4 and 5, and the properties of the baked products trial-manufactured in the comparative example are shown in Table 6.
第２表
実施例１〜３
２００メツシュ全通に粉砕した籾殻とドロマイトに、炭
酸カリウム水溶液及び廃糖蜜５０％水溶液を加えて、混
線、造粒、乾燥した後、フルイ分けして粒径１〜２１０
１１のものを実験に供した。廃糖蜜は造粒のバインダー
として用いたものである。造粒物の成分組成は、ＳｉＯ
，：３４．３ｗｔ％、 ＣａＯ：２９．２ｖｔ％、 Ｍ
ｇＯ：１７．０ｗｔ％、に、Ｏ：１９．５ｔ＋ｔ％、
（ＣａＯ＋ＮｇＯ＋に、Ｏ）／ＳｉＯ，モル比：２であ
る。この造粒物を回分型流動炉を用いて、焼成温度：９
３０℃附近、焼成時間：２０分（実施例１）。Table 2 Examples 1 to 3 Rice husks and dolomite crushed into 200 meshes were mixed with an aqueous potassium carbonate solution and a 50% aqueous solution of blackstrap molasses, mixed, granulated, dried, and separated through a sieve to have a particle size of 1 to 1. 210
Eleven samples were used in the experiment. Blackstrap molasses was used as a binder for granulation. The composition of the granules is SiO
, :34.3wt%, CaO:29.2vt%, M
gO: 17.0wt%, O: 19.5t+t%,
(CaO+NgO+, O)/SiO, molar ratio: 2. The granules were fired using a batch-type fluidized furnace at a temperature of 9
Around 30°C, baking time: 20 minutes (Example 1).
４０分（実施例２）及び６０分（実施例３）の条件で焼
成して緩効性ケイ酸肥料を得た。Slow-release silicate fertilizers were obtained by firing under the conditions of 40 minutes (Example 2) and 60 minutes (Example 3).
焼成に用いた流動炉は、第１図に示した回分型流動炉で
、内径：１００ｍ、分散板の開口比＝１．４％。The fluidized fluidized furnace used for firing was the batch type fluidized furnace shown in Fig. 1, with an inner diameter of 100 m and an aperture ratio of the dispersion plate of 1.4%.
粒径１〜２ｍに調製した造粒物の流動静止層高は約３０
０園である。流動化ガスには空気を用い、流量は流量計
により調節した。The height of the fluidized stationary bed of the granules prepared to a particle size of 1 to 2 m is approximately 30 m.
It is 0 gardens. Air was used as the fluidizing gas, and the flow rate was adjusted using a flow meter.
なお、焼成物の可溶性ケイ酸（０，５Ｎ塩酸溶出量）。In addition, soluble silicic acid (0.5N hydrochloric acid elution amount) of the fired product.
り溶性カリ（２％クエン酸溶出量）等の分析は全て公定
肥料分析法によったものである。All analyzes of soluble potassium (2% citric acid elution amount), etc. were conducted using the official fertilizer analysis method.
実施例４〜６
第２表に示した組成の籾殻灰をケイ酸原料にして、造粒
物の成分をＳｉＯ，：３４．１ｖｔ％、ＣａＯ：２９．
２ｔ＋ｔ％。Examples 4 to 6 Rice husk ash having the composition shown in Table 2 was used as a silicic acid raw material, and the components of the granules were SiO: 34.1vt%, CaO: 29.
2t+t%.
ＭｇＯ：１７．０ｗｔ％、に、０：２０．０ｗｔ％、（
ＣａＯ＋ＭｇＯ＋にｚＯ）／５ｉ０１モル比：２となる
ように調製した他は、実施例１と同様に実験を行った。MgO: 17.0wt%, 0:20.0wt%, (
The experiment was conducted in the same manner as in Example 1, except that the molar ratio of CaO+MgO+ to zO)/5i01 was 2.
実施例７〜９
実施例１〜６では、Ｓｉｎ、−ＣａＯ−ＭｇＯ−ＫＳＯ
の４成分系に調製した混合造粒物の結果を示したが、こ
の実施例７〜９では上記の４成分に酸化鉄を加えたＳｉ
ｎ、 −ＣａＯ−ＭｇＯ−に、 ０−Ｆｅ、 ０３の５
成分系に原料を調製した。即ち； ２００メツシュ全通
に粉砕した籾殻、ドロマイト、酸化鉄に、炭酸カリウム
水溶液及び廃糖蜜５０２水溶液を加え、混線、造粒、乾
燥した後、フルイ分けして粒径１〜２ｍのものを実験に
供した。廃糖蜜は造粒のバインダーとして用いたもので
ある。Examples 7-9 In Examples 1-6, Sin, -CaO-MgO-KSO
The results of the mixed granules prepared in the four-component system were shown, but in Examples 7 to 9, Si was prepared by adding iron oxide to the four components above.
n, -CaO-MgO-, 0-Fe, 5 of 03
Raw materials were prepared into component systems. That is, rice husk, dolomite, and iron oxide were ground into 200 mesh pieces, a potassium carbonate aqueous solution and a blackstrap molasses 502 aqueous solution were added, mixed, granulated, dried, and separated through a sieve to obtain particles with a particle size of 1 to 2 m in experiments. Served. Blackstrap molasses was used as a binder for granulation.
第４表
（実施例９）で焼成した他は、実施例１と同様に実験を
行い、緩効性ケイ酸肥料を得た。An experiment was conducted in the same manner as in Example 1, except that the firing was performed as shown in Table 4 (Example 9), and a slow-release silicate fertilizer was obtained.
比較例１〜３
２００メツシュ全通に粉砕した籾殻中のケイ酸とドロマ
イトを第３表に示した配分で混合し、次いでこの混合物
を電気炉用いて、比較例１は９００℃で６０分、比較例
２は１１００℃で６０分、比較例３はｔ ｔｏｏ℃で３
００分の条件で焼成し、得ら九た焼成物について各実施
例と同様にして評価した。Comparative Examples 1 to 3 Silicic acid and dolomite in rice husks ground to 200 mesh were mixed in the proportions shown in Table 3, and then this mixture was heated in an electric furnace at 900°C for 60 minutes. Comparative Example 2 was heated to 1100°C for 60 minutes, Comparative Example 3 was heated to ttoo°C for 3 minutes.
The resulting fired products were evaluated in the same manner as in each Example.
１１１：緩効性ケイ酸の生成率（ｗｔ％）＝第５表
第６表
前記表に示した結果かられかるように、籾殻とドロマイ
トのみでＳｉＯ，−ＣａＯ−ＭｇＯの３成分系に＊＊″
）：緩効性カリの生成率（ｖｔ％）＝しないので緩効性
ケイ酸の生成率が極めて低く。111: Production rate of slow-release silicic acid (wt%) = Table 5 Table 6 As can be seen from the results shown in the table above, only rice husk and dolomite can be used to form a three-component system of SiO, -CaO-MgO* *″
): Production rate of slow-release potash (vt%)=No, so the production rate of slow-release silicic acid is extremely low.
緩効性ケイ酸肥料とは言えない。It cannot be called a slow-release silicate fertilizer.
なお、各実施例でカリ源に用いた炭酸カリウムの代りに
水酸化カリウムを用いた場合にも２本発明によると各実
施例とほぼ同様の結果が得られた。Furthermore, even when potassium hydroxide was used in place of the potassium carbonate used as the potassium source in each example, almost the same results as in each example were obtained according to the present invention.
潮解性の水酸化カリウムをカリ源に用いる場合は他の原
料と混線後、１５０〜２００℃で炭酸ガスあるいは排ガ
スと接触させることによって炭酸カリウムに変えた後、
造粒することが有利である。When deliquescent potassium hydroxide is used as a potash source, it is mixed with other raw materials and then converted into potassium carbonate by contacting it with carbon dioxide gas or exhaust gas at 150 to 200°C.
Granulation is advantageous.
以上の実験結果から、本発明によると全ケイ酸に対する
緩効性ケイ酸の生成率が極めて高く、カリ、カルシウム
及びマグネシウムを成分とする植生に有害なアルミニウ
ムを含有しない肥料を製造することができるものである
。From the above experimental results, according to the present invention, the production rate of slow-release silicic acid to total silicic acid is extremely high, and it is possible to produce a fertilizer containing potassium, calcium, and magnesium that does not contain aluminum, which is harmful to vegetation. It is something.
図面は本発明にかかる緩効性ケイ酸肥料の製造実験に用
いた回分型流動炉の縦断面図である。
１・・・ポツパー、２・・・スクリューフィーダー、３
・・・流動炉、４・・・撹拌機、５・・・分散板、６・
・・排出バルブ。
７・・・サイクロン、８・・・流量計、９・・・送風機
、１０・・・熱電対、１１・・・ヒーター
第
図
特許出願人 工業技術院長 飯 塚 幸 三指定代理人
工業技術院北海道工業開発試験所長後 藤 藤太部The drawing is a longitudinal sectional view of a batch-type fluidized bed furnace used in a production experiment of a slow-release silicate fertilizer according to the present invention. 1...Popper, 2...Screw feeder, 3
...Fluidized furnace, 4. Stirrer, 5.Dispersion plate, 6.
...Exhaust valve. 7...Cyclone, 8...Flow meter, 9...Blower, 10...Thermocouple, 11...Heater diagram Patent applicant: Director of the Agency of Industrial Science and Technology Kozo Iizuka Designated agent: Agency of Industrial Science and Technology Hokkaido Director of Industrial Development and Testing Laboratory Fujitabe Goto
Claims (1)
酸原料にして、このケイ酸原料に、ドロマイト、カリウ
ム化合物、必要に応じて酸化鉄を添加し、さらに液体バ
インダーを添加して混練し、造粒し、乾燥した後、流動
炉で焼成して籾殻又は籾殻灰中のケイ酸成分と、ドロマ
イト中のカルシウム成分及びマグネシウム成分と、カリ
ウム化合物と、必要に応じて添加される酸化鉄とを反応
させることを特徴とする緩効性ケイ酸肥料の製造方法。(1) Use rice husk or rice husk ash that does not contain aluminum as a silicic acid raw material, add dolomite, a potassium compound, and iron oxide as necessary to this silicic acid raw material, and further add a liquid binder and knead it. After granulating and drying, it is fired in a fluidized furnace to react the silicic acid component in the rice husk or rice husk ash, the calcium component and magnesium component in the dolomite, the potassium compound, and the iron oxide added as necessary. A method for producing a slow-release silicic acid fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23813188A JPH0236559B2 (en) | 1988-09-21 | 1988-09-21 | KANKOSEIKEISANHIRYONOSEIZOHOHO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23813188A JPH0236559B2 (en) | 1988-09-21 | 1988-09-21 | KANKOSEIKEISANHIRYONOSEIZOHOHO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288485A true JPH0288485A (en) | 1990-03-28 |
| JPH0236559B2 JPH0236559B2 (en) | 1990-08-17 |
Family
ID=17025646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23813188A Expired - Lifetime JPH0236559B2 (en) | 1988-09-21 | 1988-09-21 | KANKOSEIKEISANHIRYONOSEIZOHOHO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236559B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245617A (en) * | 2007-03-30 | 2008-10-16 | National Institute Of Advanced Industrial & Technology | Nutrient salt composition using farm and marine waste and for silicon supply to water area, and production system thereof |
| JP2009269800A (en) * | 2008-05-08 | 2009-11-19 | Tokyo Univ Of Agriculture & Technology | Pk compound fertilizer |
| JP2021146271A (en) * | 2020-03-18 | 2021-09-27 | 国立大学法人弘前大学 | Fertilizer activity substance production method, waste treatment method, fertilizer activity substance production device and waste treatment device |
-
1988
- 1988-09-21 JP JP23813188A patent/JPH0236559B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008245617A (en) * | 2007-03-30 | 2008-10-16 | National Institute Of Advanced Industrial & Technology | Nutrient salt composition using farm and marine waste and for silicon supply to water area, and production system thereof |
| JP2009269800A (en) * | 2008-05-08 | 2009-11-19 | Tokyo Univ Of Agriculture & Technology | Pk compound fertilizer |
| JP2021146271A (en) * | 2020-03-18 | 2021-09-27 | 国立大学法人弘前大学 | Fertilizer activity substance production method, waste treatment method, fertilizer activity substance production device and waste treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0236559B2 (en) | 1990-08-17 |
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