JPH05279158A - Production of delayed release particulate fertilizer - Google Patents
Production of delayed release particulate fertilizerInfo
- Publication number
- JPH05279158A JPH05279158A JP4345099A JP34509992A JPH05279158A JP H05279158 A JPH05279158 A JP H05279158A JP 4345099 A JP4345099 A JP 4345099A JP 34509992 A JP34509992 A JP 34509992A JP H05279158 A JPH05279158 A JP H05279158A
- Authority
- JP
- Japan
- Prior art keywords
- fertilizer
- rosin
- delayed
- producing
- water
- 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.)
- Pending
Links
Classifications
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、遅効性粒状肥料の製造
方法、特にロジンを主成分とし、これに添加剤として非
水溶性金属化合物と高分子物質を混合又は反応させて得
た被覆物質を、有機溶媒に溶解して、肥料粒子に噴霧
し、被覆することで、肥料の水中溶出速度を顕著に低下
させた、新しく経済性のある遅効性粒状肥料の製造方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a slow-acting granular fertilizer, particularly a coating substance obtained by mixing or reacting a rosin as a main component with a water-insoluble metal compound as an additive and a polymer substance. The present invention relates to a method for producing a new economical economical slow-acting granular fertilizer in which is dissolved in an organic solvent, sprayed on fertilizer particles, and coated to significantly reduce the elution rate of fertilizer in water.
【０００２】[0002]
【従来の技術】現在使用されている化学肥料は大部分水
に容易に溶けるために、施肥した肥料の流失量が多く、
施肥した肥料の量に比べ収穫量が少なく、又頻繁な施肥
による労働力浪費等の問題点を有している。従って、肥
料の利用効率を高め、施肥回数を減らすために、肥料成
分が土壌及び水中に徐々に溶出する、経済性のある遅効
性肥料の開発が切実に要求されている実情である。Most of the chemical fertilizers currently used are easily dissolved in water, so the amount of fertilizer applied is large.
Compared to the amount of fertilizer applied, the yield is small, and there are problems such as wasted labor due to frequent fertilization. Therefore, in order to enhance the utilization efficiency of fertilizers and reduce the number of times fertilizers are applied, there is an urgent need to develop economically slow-acting fertilizers in which fertilizer components are gradually eluted into soil and water.
【０００３】従来の遅効性肥料の製造方法を大別すれ
ば、肥料と他物質との化学反応により新しい化学物質を
造り、この物質が施肥後徐々に分解するようにした肥料
成分を供給する化学的方法と、溶解速度を遅らせるため
に適切な物質で被覆又は含浸させる物理的方法に分ける
ことができる。化学的方法では、化学結合の強度、溶解
度、分解速度等が肥料の遅効性を決定する要因となり、
代表的な例として尿素とアルデヒドとの縮合物（米国特
許第３，２２７，５４３号）があるが、この生産原価は
他の有機物より高いという短所がある。The conventional methods for producing slow-acting fertilizers are roughly divided into chemicals that produce new chemical substances by chemical reaction between fertilizers and other substances, and supply fertilizer components that cause the substances to gradually decompose after fertilization. Physical methods and physical methods of coating or impregnating with a suitable substance to slow the dissolution rate. In the chemical method, the strength of the chemical bond, the solubility, the decomposition rate, etc. are the factors that determine the delayed action of the fertilizer.
A typical example is a condensation product of urea and an aldehyde (U.S. Pat. No. 3,227,543), which has the disadvantage that the production cost is higher than that of other organic substances.
【０００４】物理的方法中、肥料を特殊な物質に混合す
る方法（米国特許第３，２３２，７３９号）があるが、
この方法は製造工程は簡便であるが、混合物質の使用に
伴う肥料成分の含量低下及び肥料成分の溶出速度調節の
難易性のために実用化するには問題がある。Among the physical methods, there is a method of mixing fertilizer with a special substance (US Pat. No. 3,232,739).
Although this method has a simple manufacturing process, it has a problem in practical use due to the decrease in the content of fertilizer components and the difficulty of adjusting the elution rate of fertilizer components due to the use of mixed substances.
【０００５】最後に、被覆により遅効性肥料を製造する
方法は、被覆物質の選択により肥料の溶出速度調節が容
易で、肥料の含量を高めることができ、比較的経済性の
ある工程で可能であるために最も活発に研究が行われて
いる。Finally, the method for producing a slow-acting fertilizer by coating can easily control the elution rate of the fertilizer by selecting the coating material and increase the fertilizer content, which is a relatively economical process. Because of this, research is being carried out most actively.
【０００６】米国のＴ．Ｖ．Ａ．が開発した硫黄被覆肥
料（米国特許第３，２９５，９５０号）とか、アーチャ
−ダニエルス−ミドランド・カンパニー（Archer-Danie
ls-Midland Co.）が開発したオスモコート（Osmocote）
（米国特許第３，２２３，５１８号）は、代表的な被覆
肥料の例である。しかし硫黄を被覆物質として使用する
場合には価格が低廉であるという長所はあるが、肥料の
溶出速度調節が難しく、土壌中に硫黄が蓄積して土壌が
酸性化するという欠点がある。US T.W. V. A. Sulfur-coated fertilizer (US Pat. No. 3,295,950) developed by the company, or Archer-Danies-Midrand Company (Archer-Danie).
Osmocote developed by ls-Midland Co.)
(U.S. Pat. No. 3,223,518) is an example of a representative coated fertilizer. However, when sulfur is used as a coating material, it has an advantage that the price is low, but it has a drawback that it is difficult to control the elution rate of the fertilizer and sulfur is accumulated in the soil to acidify the soil.
【０００７】オスモコートは、ジシクロペンタジエンと
グリセロールエステルとの共重合物を主成分とし、幾層
にも被覆したもので、品質は優れているが価格が高く、
使用した有機溶媒を回収するのに困難性がある。この外
にも、オレフィン系高分子物質を使用したニュートリコ
ート（Nutricote)（大韓民国特許公告第８２−２２０４
号）とか、アクリレート系高分子物質（特公昭６４−３
０９３号）のような被覆物質を使用する方法が知られて
いる。[0007] Osmocoat is composed of a copolymer of dicyclopentadiene and glycerol ester as a main component and is coated in multiple layers. The quality is excellent but the price is high.
There is difficulty in recovering the organic solvent used. In addition to this, Nutricote (Korean Patent Publication No. 82-2204) using an olefin polymer is used.
No.) or an acrylate polymer (Japanese Patent Publication No. 64-3)
Methods using coating materials such as No. 093) are known.
【０００８】一方、金属酸化物かケイ酸塩を被覆物質と
して提案した（特開昭５９−１３７３８６号）ものもあ
るが、被覆物質の主成分として使用したケイ酸塩が水に
溶けるために、充分な遅効効果を期待することが難し
い。ケイ酸塩で被覆し、更にその上に高分子物質で２次
被覆することで遅効効果を補完したもの（大韓民国特許
公告第８８−１５３号）は、被覆の遅効性能が良く、有
機溶媒を使用しないという長所がある反面、価格の高い
ラテックスを被覆物質として使用するため製造単価が高
くなり、ラテックス成分が土壌に残留し蓄積するという
短所がある。これら高分子物質以外に、水に溶けないワ
ックスが被覆材料として提案されているが（米国特許第
３，２３２，２３７号）、肥料の溶出速度を満足するだ
け抑制するためには、被覆肥料でのワックス含量が余り
にも高くなるという短所がある。On the other hand, there is also a proposal of a metal oxide or a silicate as a coating substance (Japanese Patent Laid-Open No. 59-137386). However, since the silicate used as the main component of the coating substance is soluble in water, It is difficult to expect a sufficient retarding effect. The one having a delayed-release effect complemented by coating with a silicate and then a secondary coating with a polymer substance (Korean Patent Publication No. 88-153) has good delayed-release performance and uses an organic solvent. On the other hand, it has the advantage of not using it, but on the other hand, since expensive latex is used as the coating material, the production unit price is high, and the latex component remains and accumulates in the soil. In addition to these polymer substances, a water-insoluble wax has been proposed as a coating material (US Pat. No. 3,232,237). However, in order to suppress the elution rate of the fertilizer as much as possible, the coated fertilizer should be used. It has the disadvantage of having too high a wax content.
【０００９】これを補完するために、ワックスとロジン
を混合溶融し、被覆材料として使用する方法（特公昭５
９−３５８７５号）が提案された。この方法によれば、
パラフィンワックス又はブレンドワックスを基本物質と
し、これにロジンを３０−８０重量％混合した後溶融し
て被覆材料として使用する場合、遅効効果の優れた粒状
被覆肥料を製造することができた。しかし、ロジン含量
が８０重量％以上である場合には、被膜にピンホールの
発生が甚々しく、均一な被膜の形成が困難であると報告
されている。このような不均一被膜形成の主要原因は、
ワックスとロジンを溶融し、比較的高い温度で被膜工程
を行わなければならないためと理解される。In order to supplement this, a method of mixing and melting wax and rosin and using it as a coating material (Japanese Patent Publication No.
9-35875) was proposed. According to this method
When paraffin wax or blended wax was used as a basic substance and 30-80% by weight of rosin was mixed and then melted and used as a coating material, a granular coated fertilizer having an excellent slow-release effect could be produced. However, when the rosin content is 80% by weight or more, it is reported that pinholes are seriously generated in the coating and it is difficult to form a uniform coating. The main cause of such non-uniform film formation is
It is understood that the wax and rosin must be melted and the coating process must be performed at a relatively high temperature.
【００１０】[0010]
【発明が解決しようとする課題】被覆型遅効性肥料の製
造においては、肥料の水中溶出速度の調節のためには、
何よりも被覆物質が水に容易に溶解しないことが肝心で
あるといえるが、被覆物質の主成分が水に容易に溶解す
る性質を持っている場合、これを不溶化することは非常
に難しい課題である。例を挙げれば、ケイ酸塩を基本物
質として使用した場合（大韓民国特許公告第８５−１１
７５号）、ケイ酸塩自体が水に良く溶けるために、添加
剤を使用して不溶化を試みようとしたが限界があること
を知った。勿論、水を溶媒として使用すれば溶媒の回収
が不必要になる長所があるが、被覆材料が乾燥後には水
に溶けてはならない条件を解決しなければならない困難
が伴う。In the production of the coated slow-acting fertilizer, in order to control the dissolution rate of the fertilizer in water,
Above all, it can be said that the coating substance is not easily dissolved in water, but if the main component of the coating substance has the property of being easily dissolved in water, it is a very difficult task to make it insoluble. is there. For example, when silicate is used as a basic substance (Korean Patent Publication No. 85-11)
No. 75), since the silicate itself is well soluble in water, we tried to make it insoluble by using an additive, but found that there was a limit. Of course, when water is used as a solvent, there is an advantage that the recovery of the solvent is unnecessary, but it is difficult to solve the condition that the coating material should not dissolve in water after drying.
【００１１】又前で例示した水でのエマルジョン重合を
活用したラテックス被覆（大韓民国特許公告第８８−１
５３号）とか、アクリレート系高分子物質（特公昭６４
−３０９３号）等は、材料の価格が高いために、遅効性
肥料として広範囲に実用化するには限界がある。The latex coating utilizing emulsion polymerization in water as exemplified above (Korean Patent Publication No. 88-1)
No. 53) or acrylate polymer (Japanese Patent Publication No. 64)
Nos. 3093) and the like have high limits on their practical use as slow-acting fertilizers due to their high price.
【００１２】[0012]
【課題を解決するための手段】本発明では、土壌分解性
のあることが知られているロジンが、水には溶けないで
有機溶媒に良く溶ける性質を利用し、ロジンを有機溶媒
に溶解させた後、特定の添加剤を加え、粒状肥料の被覆
剤として使用することで、被膜工程での温度を低くし、
ロジン被膜の物性を大きく改善することができる事実を
発見した。本発明では、ロジン自体だけでも粒状肥料上
に粘着力が良く、遅効効果の優れた被膜を形成すること
ができるが、特定添加剤を加えることで被膜表面の粘り
気を減少させる等の物性を改善することができ、少ない
量でも被覆を可能にし、結果的に被覆肥料の肥料含量を
高めることができるという事実も発見した。又本発明者
らは、添加剤の選択により遅効性肥料の耐久性及び水中
溶出速度を目的に合うように変化させることができる事
実も発見した。In the present invention, rosin, which is known to be soil-degradable, is dissolved in an organic solvent by utilizing the property that it is not soluble in water and is well soluble in an organic solvent. After that, by adding a specific additive and using it as a coating agent for granular fertilizer, the temperature in the coating process can be lowered,
We have discovered the fact that the physical properties of the rosin coating can be greatly improved. In the present invention, the rosin itself has a good adhesive force on the granular fertilizer, and can form a film having an excellent slow-release effect, but by improving the physical properties such as reducing the stickiness of the film surface by adding a specific additive. It has also been discovered that it is possible to coat with a small amount and consequently to increase the fertilizer content of the coated fertilizer. The present inventors have also discovered the fact that the durability and the dissolution rate in water of a delayed-release fertilizer can be changed to suit the purpose by selecting an additive.
【００１３】本発明の技術内容を詳細に説明すれば次の
通りである。先ずロジン５０−１００重量％を主成分と
し、これに添加剤として非水溶性金属化合物０−１０重
量％と高分子物質０−５０重量％を混合又は反応させて
得た被覆物質を、有機溶媒に溶解して肥料粒子に噴霧す
ることで、本発明の遅効性粒状肥料が製造される。The technical contents of the present invention will be described in detail as follows. First, a coating material obtained by mixing or reacting 50 to 100% by weight of rosin as a main component with 0 to 10% by weight of a water-insoluble metal compound as an additive and 0 to 50% by weight of a polymer substance is used as an organic solvent. The slow-acting granular fertilizer of the present invention is produced by dissolving it in and spraying the fertilizer particles.
【００１４】上記ロジンとしては、ガムロジン、ウッド
ロジン及びトールオイルロジンの内から選択される何れ
かの１種が用いられる。As the rosin, any one selected from gum rosin, wood rosin and tall oil rosin is used.
【００１５】上記非水溶性金属化合物には、アルミニウ
ム、カルシウム、銅、鉄、マグネシウム、もしくは亜鉛
と脂肪酸の化合物か、アルミニウムエトキシド、バリウ
ム酸化物、鉄のアセテート（三価、塩基性）；又はケイ
弗化カルシウムもしくはリチウムが使用され、これらを
単独又は混合して使用することができる。又アルカリ土
金属、クロム、マンガン、鉄、コバルト、ニッケル、
銅、亜鉛の酸化物、水酸化物もしくは炭酸塩をロジンと
反応させ、添加剤として使用することもできる。The water-insoluble metal compound is a compound of aluminum, calcium, copper, iron, magnesium or zinc and a fatty acid, aluminum ethoxide, barium oxide, iron acetate (trivalent, basic); or Calcium or lithium silicofluoride is used, and these can be used alone or as a mixture. In addition, alkaline earth metal, chromium, manganese, iron, cobalt, nickel,
It is also possible to react copper, zinc oxide, hydroxide or carbonate with rosin and use it as an additive.
【００１６】上で列挙した金属の脂肪酸化合物かロジン
との反応物は、ロジンの融点を高め、被覆物性を改善す
るのに効果があり、これらの内特に二価又は三価の塩又
は塩基が効果があった。The above-listed metal fatty acid compounds or their reaction products with rosin are effective in increasing the melting point of rosin and improving the physical properties of the rosin. Among them, divalent or trivalent salts or bases are particularly effective. It was effective.
【００１７】上記高分子物質には、パラフィンワック
ス、エチルセルロース、ベンジルセルロース、アルキド
樹脂、セルロースエステル、セルロースナイトレート、
ポリアクリレート、フェノール樹脂、エポキシ樹脂、ポ
リビニルアセタール、ポリ塩化ビニル等が使用される。
このような高分子物質の添加は、ロジンの耐久性を増加
させ、これらの内特にパラフィンワックス、ベンジルセ
ルロース、アルキド樹脂の効果が優れている。Paraffin wax, ethyl cellulose, benzyl cellulose, alkyd resin, cellulose ester, cellulose nitrate,
Polyacrylate, phenol resin, epoxy resin, polyvinyl acetal, polyvinyl chloride, etc. are used.
Addition of such a polymeric substance increases the durability of rosin, and among these, the effects of paraffin wax, benzyl cellulose and alkyd resin are particularly excellent.
【００１８】本発明で使用することのできる溶媒は、ロ
ジンを溶解することのできるアルコール類か、其の他有
機溶媒を用いることができ、望ましくは沸点が低く、揮
発性の大きいメタノール、エタノール、イソプロパノー
ル、ｔ−ブタノール、ベンゼン、エーテル、テトラヒド
ロフラン、クロロホルム、アセトン、メチルアセテー
ト、エチルアセテート、アセトニトリル、トリクロロエ
タン等であり、これらの内特にエタノール、アセトン、
エーテルが優れている。As the solvent which can be used in the present invention, alcohols capable of dissolving rosin or other organic solvents can be used. Desirably, methanol and ethanol having a low boiling point and large volatility are used. Isopropanol, t-butanol, benzene, ether, tetrahydrofuran, chloroform, acetone, methyl acetate, ethyl acetate, acetonitrile, trichloroethane, etc., among which ethanol, acetone,
Ether is excellent.
【００１９】上記被覆物質を肥料粒子に被覆する方法を
詳細に説明すれば次の通りである。上記のように製造し
た被覆物質を、ファン型回転被覆機で肥料粒子に噴霧し
て被覆する。このときドラムの回転速度は分当り１０−
３０rpm 、噴霧ノズルの空気圧力は１−３Kg/cm2、温度
は２０−７０℃を維持してやる。被覆の終った後、肥料
粒子は被覆機のドラム内で乾燥工程を完了するが、この
ときの温度は４０−９０℃であり、乾燥時間は１分−２
時間である。溶媒は揮発性が大きく、沸点の低い有機溶
媒を使用したために回収が比較的容易であり、特別な熱
処理工程は必要なく、溶媒の乾燥除去により工程が終了
する。The method of coating the fertilizer particles with the coating material will be described in detail below. The fertilizer particles are coated with the coating material produced as described above by spraying on a fan type rotary coating machine. At this time, the rotation speed of the drum is 10- per minute.
The air pressure of the spray nozzle is kept at 30 rpm, the pressure is kept at 1-3 Kg / cm 2 , and the temperature is kept at 20-70 ° C. After the coating is completed, the fertilizer particles complete the drying process in the drum of the coating machine, the temperature at this time is 40-90 ° C, and the drying time is 1 minute-2.
It's time. The solvent has a high volatility and is relatively easy to collect because an organic solvent having a low boiling point is used. No special heat treatment step is required, and the step is completed by drying and removing the solvent.
【００２０】[0020]
【発明の効果】本発明の長所は、ロジンが大部分の有機
溶媒に非常に良く溶けるために、選択することのできる
溶媒の範囲が広く、揮発性の大きい溶媒の使用で被覆時
容易に乾燥することができ、乾燥後は特別な後処理工程
を経なくとも、水に溶けず、粘着力も良く、滑らかな被
膜を安価に形成させることができる点にある。The advantage of the present invention is that since rosin is very well soluble in most organic solvents, the range of solvents that can be selected is wide, and the use of highly volatile solvents facilitates drying during coating. After drying, even if a special post-treatment step is not performed, it does not dissolve in water, has good adhesive strength, and is capable of forming a smooth film at low cost.
【００２１】このようにして本発明により遅効性肥料を
製造すれば、簡単な単一被覆工程により水に溶けなく滑
らかで亀裂のない被膜を製造することができ、このよう
にして製造した本発明の遅効性肥料被膜は、溶出が終っ
た後容易にこわれ、土壌中で容易に分解することができ
る等の諸長所がある。By thus producing the slow-acting fertilizer according to the present invention, it is possible to produce a smooth and crack-free coating that does not dissolve in water by a simple single coating process. The slow-acting fertilizer coating of (3) has various advantages such as being easily broken after dissolution and easily decomposed in soil.
【００２２】[0022]
【実施例】本発明の実施例を挙げ、より具体的に説明す
れば次の通りである。これらの実施例は本発明の範囲中
の一部を示すもので、本実施例で本発明の範囲を制限し
ようとするものではない。EXAMPLES The present invention will be described in more detail below with reference to examples. These examples represent some of the scope of the invention and are not intended to limit the scope of the invention.
【００２３】実施例１ ファン型回転被覆機を使用し、粒子の直径が２．３６−
２．８３mmである尿素肥料を被覆率を変化させて被覆し
た。ガムロジン１００g をメタノール４００gに溶か
し、２０重量％となるように被覆溶液を作った後、５０
℃の温度で噴霧ノズルの空気圧力を１．５Kg/cm2、噴霧
量２ml／分で２０分、４０分、６０分間各々５０g ずつ
の肥料を被覆した。被覆が終った後、回転ドラムで同じ
温度で６０分間乾燥し、被覆肥料を得た。Example 1 A fan type spin coater was used and the particle diameter was 2.36-
2.83 mm urea fertilizer was coated with varying coverage. Gum rosin (100 g) was dissolved in methanol (400 g) to prepare a coating solution having a concentration of 20% by weight.
At the temperature of ° C, the air pressure of the spray nozzle was 1.5 kg / cm 2 , and the spray amount was 2 ml / min, and 50 g of each fertilizer was coated for 20, 40, and 60 minutes. After the coating was completed, it was dried on a rotary drum at the same temperature for 60 minutes to obtain a coated fertilizer.
【００２４】被覆した肥料を３０℃の水に入れ、溶出す
る肥料の量を測定した結果は表１の通りである。なお溶
出する肥料の量は、ベリアン社の高圧液体クロマトグラ
フィーを使用して測定した。Table 1 shows the results of measuring the amount of fertilizer eluted by putting the coated fertilizer in water at 30 ° C. The amount of the fertilizer to be eluted was measured using high pressure liquid chromatography manufactured by Brian.
【００２５】[0025]
【表１】 [Table 1]
【００２６】実施例２ ガムロジン９５部に、アルミニウムステアレート、カル
シウムステアレート、亜鉛オレエート、酢酸鉄（三
価）、ケイ弗化カルシウムを各々５部ずつ混ぜ、これら
から各々２０重量％となるようにエタノール溶液１００
部ずつを作った。Example 2 To 95 parts of gum rosin, aluminum stearate, calcium stearate, zinc oleate, iron acetate (trivalent), and calcium silicofluoride were mixed in an amount of 5 parts each to give 20% by weight. Ethanol solution 100
I made copies.
【００２７】これらの溶液を実施例１の方法で尿素肥料
粒子に被覆し、被覆時間は４０分に固定した。３０℃の
水での肥料の溶出率は表２の通りである。Urea fertilizer particles were coated with these solutions by the method of Example 1, and the coating time was fixed at 40 minutes. Table 2 shows the elution rate of fertilizer in water at 30 ° C.
【００２８】[0028]
【表２】 [Table 2]
【００２９】実施例３ ガムロジン９５部と炭酸カルシウム、水酸化マグネシウ
ム、炭酸亜鉛を各々５部ずつを混ぜ、１５０−２００℃
で加熱反応させた後、エタノールに溶かして各々２０重
量％となるよう溶液１００部ずつを作った。これらの溶
液を実施例２の方法で尿素肥料粒子を被覆し、このとき
の噴霧温度は６５℃に固定した。３０℃の水での肥料の
溶出率は表３の通りである。EXAMPLE 3 95 parts of gum rosin and 5 parts of calcium carbonate, 5 parts of magnesium hydroxide and 5 parts of zinc carbonate were mixed and the mixture was heated to 150-200 ° C.
After heating and reacting with, the solution was dissolved in ethanol to prepare 100 parts of the solution so that each of them was 20% by weight. These solutions were coated with urea fertilizer particles by the method of Example 2, and the spraying temperature at this time was fixed at 65 ° C. Table 3 shows the elution rate of fertilizer in water at 30 ° C.
【００３０】[0030]
【表３】 [Table 3]
【００３１】比較例１ ガムロジン１０g と酢酸ナトリウム、塩化カルシウム
０．５g を、各々メタノール４０g に溶かして被覆溶液
を製造した後、実施例２の方法で尿素肥料粒子を被覆し
た。３０℃の水での溶出率は表４の通りである。Comparative Example 1 10 g of gum rosin, 0.5 g of sodium acetate and 0.5 g of calcium chloride were dissolved in 40 g of methanol to prepare a coating solution, and then urea fertilizer particles were coated by the method of Example 2. Table 4 shows the dissolution rate in water at 30 ° C.
【００３２】[0032]
【表４】 [Table 4]
【００３３】実施例４ ガムロジン８５部とパラフィンワックス、アルキド樹
脂、ベンジルセルロース、セルロースアセテート、ポリ
塩化ビニル、エポキシ樹脂、ポリアクリレートを、各々
１５部をテトラヒドロフランに溶かし、これらから２０
重量％の溶液を作った。Example 4 85 parts of gum rosin, paraffin wax, alkyd resin, benzyl cellulose, cellulose acetate, polyvinyl chloride, epoxy resin and polyacrylate were dissolved in tetrahydrofuran in an amount of 15 parts each.
A wt% solution was made.
【００３４】これらの溶液を実施例２の方法で尿素肥料
粒子に被覆した。３０℃の水での肥料溶出率は表５の通
りである。Urea fertilizer particles were coated with these solutions by the method of Example 2. Table 5 shows the fertilizer elution rate with water at 30 ° C.
【００３５】[0035]
【表５】 [Table 5]
【００３６】比較例２ ガムロジン８５部にポリエチレングリコール１５部をエ
タノールに溶かし、２０重量％の溶液を作った。この溶
液を実施例２の方法で尿素肥料粒子に被覆した。３０℃
の水での２４時間後肥料の溶出率は１００％であった。Comparative Example 2 15 parts of polyethylene glycol was dissolved in 85 parts of gum rosin in ethanol to prepare a 20% by weight solution. This solution was coated on urea fertilizer particles by the method of Example 2. 30 ° C
After 24 hours in water, the elution rate of the fertilizer was 100%.
【００３７】実施例５ ガムロジン８０部とカルシウムステアレート５部を混ぜ
たもの又はガムロジン８０部と水酸化マグネシウムもし
くは炭酸カルシウム５部を反応させたものに、エチルセ
ルロース、アルキド樹脂もしくはポリアクリレート１５
部をエタノールに溶かし、２０重量％溶液を作った。こ
れらの溶液を実施例２の方法で尿素肥料粒子に被覆し
た。３０℃の水での肥料の溶出率は表６の通りである。Example 5 A mixture of 80 parts of gum rosin and 5 parts of calcium stearate or a mixture of 80 parts of gum rosin and 5 parts of magnesium hydroxide or calcium carbonate was added to ethyl cellulose, alkyd resin or polyacrylate 15
A part was dissolved in ethanol to make a 20 wt% solution. These solutions were coated on urea fertilizer particles by the method of Example 2. The dissolution rate of fertilizer in water at 30 ° C is shown in Table 6.
【００３８】[0038]
【表６】 [Table 6]
【００３９】実施例６ ガムロジンをエタノール、イソプロパノール、エーテ
ル、テトラヒドロフラン、ベンゼン又はメチルアセテー
トに溶かし、２０重量％の溶液を作った。この溶液を実
施例２の方法で尿素肥料粒子に被覆し、噴霧温度は３０
−５０℃、乾燥温度は４０−７０℃にした。３０℃の水
での肥料の溶出率は表７の通りである。Example 6 Gum rosin was dissolved in ethanol, isopropanol, ether, tetrahydrofuran, benzene or methyl acetate to make a 20 wt% solution. Urea fertilizer particles were coated with this solution by the method of Example 2, and the spray temperature was 30.
The temperature was -50 ° C and the drying temperature was 40-70 ° C. Table 7 shows the elution rate of fertilizer in water at 30 ° C.
【００４０】[0040]
【表７】 [Table 7]
【００４１】実施例７ ガムロジンの２０％メタノール溶液を、実施例２の方法
で粒子直径２．０４−３．１６mmのＮ−Ｐ−Ｋ複合肥料
（１５−１５−１５）に被覆した。３０℃の水での肥料
の溶出率は表８の通りである。Example 7 A 20% methanol solution of gum rosin was coated on the N-P-K compound fertilizer (15-15-15) having a particle diameter of 2.04 to 3.16 mm by the method of Example 2. Table 8 shows the elution rate of fertilizer in water at 30 ° C.
【００４２】[0042]
【表８】 [Table 8]
【００４３】実施例８ トールオイルロジンもしくはウッドロジンをアセトンに
溶かし、各々２０重量％の溶液を作った後、実施例２の
方法で尿素肥料粒子に被覆した。３０℃の水での肥料の
溶出率は表９の通りである。Example 8 Tall oil rosin or wood rosin was dissolved in acetone to make a 20% by weight solution, and then urea fertilizer particles were coated by the method of Example 2. Table 9 shows the elution rate of fertilizer in water at 30 ° C.
【表９】 [Table 9]
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年２月１２日[Submission date] February 12, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００４０[Name of item to be corrected] 0040
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００４０】[0040]
【表７】 [Table 7]
フロントページの続き (72)発明者 金 在 翊 大韓民国ソウル特別市道峰区放鶴洞639− 15Continuation of the front page (72) Inventor Kim Jin Sui 639-15 Hosekol-dong, Dobong-gu, Seoul, Republic of Korea
Claims (8)
し、これに添加剤として非水溶性金属化合物０−１０重
量％と高分子物質０−５０重量％を混合又は反応させて
得た被覆物質を、有機溶媒に溶解して肥料粒子に噴霧す
る、ことを特徴とする遅効性粒状肥料の製造方法。1. A coating material obtained by mixing or reacting 50-100% by weight of rosin as a main component with 0-10% by weight of a water-insoluble metal compound as an additive and 0-50% by weight of a polymeric substance. Is dissolved in an organic solvent and sprayed on fertilizer particles, and a method for producing a delayed-acting granular fertilizer.
トールオイルロジンの中から選択される請求項１の遅効
性粒状肥料の製造方法。2. The rosin is wood rosin, gum rosin,
The method for producing a delayed-acting granular fertilizer according to claim 1, which is selected from tall oil rosin.
カルシウム、銅、鉄、マグネシウム又は亜鉛の脂肪酸化
合物；ケイ弗化カルシウムもしくはリチウム；及びロジ
ンと反応性のアルカリ土金属、クロム、マンガン、鉄、
コバルト、ニッケル、銅、亜鉛の酸化物、水酸化物もし
くは炭酸塩の内から選択される請求項１の遅効性粒状肥
料の製造方法。3. The water-insoluble metal compound is aluminum,
Fatty acid compounds of calcium, copper, iron, magnesium or zinc; calcium or lithium silicofluoride; and alkaline earth metals, chromium, manganese, iron, which are reactive with rosin.
The method for producing a delayed-acting granular fertilizer according to claim 1, which is selected from the oxides, hydroxides or carbonates of cobalt, nickel, copper, zinc.
チルセルロース、ベンジルセルロース、アルキド樹脂、
セルロースエステル、セルロースナイトレート、ポリア
クリレート、フェノール樹脂、エポキシ樹脂、ポリビニ
ルアセタール及びポリ塩化ビニルの内から選択される請
求項１の遅効性粒状肥料の製造方法。4. The polymer substance is paraffin wax, ethyl cellulose, benzyl cellulose, alkyd resin,
The method for producing a delayed-acting granular fertilizer according to claim 1, which is selected from the group consisting of cellulose ester, cellulose nitrate, polyacrylate, phenol resin, epoxy resin, polyvinyl acetal and polyvinyl chloride.
イソプロパノール、ｔ−ブタノール、ベンゼン、エーテ
ル、テトラヒドロフラン、クロロホルム、アセトン、メ
チルアセテート、エチルアセテート、二硫化炭素、アセ
トニトリル、トリクロロエタンの内から選択される請求
項１の遅効性粒状肥料の製造方法。5. The organic solvent is methanol, ethanol,
The method for producing a delayed-acting granular fertilizer according to claim 1, which is selected from isopropanol, t-butanol, benzene, ether, tetrahydrofuran, chloroform, acetone, methyl acetate, ethyl acetate, carbon disulfide, acetonitrile, and trichloroethane.
肥料である請求項１の遅効性粒状肥料の製造方法。6. The method for producing a delayed-acting granular fertilizer according to claim 1, wherein the fertilizer particles are granular urea fertilizer or granular compound fertilizer.
る請求項３の遅効性粒状肥料の製造方法。7. The method for producing a delayed-acting granular fertilizer according to claim 3, wherein the metal compound is used alone or in a mixture.
る請求項４の遅効性粒状肥料の製造方法。8. The method for producing a delayed-acting granular fertilizer according to claim 4, wherein the polymeric substances are used alone or in a mixture.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR910022161 | 1991-12-04 | ||
| KR22161/1991 | 1991-12-04 | ||
| KR1019910022161A KR950002341B1 (en) | 1991-12-04 | 1991-12-04 | Gradually releasable fertilizers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05279158A true JPH05279158A (en) | 1993-10-26 |
Family
ID=26628836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4345099A Pending JPH05279158A (en) | 1991-12-04 | 1992-12-02 | Production of delayed release particulate fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05279158A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999005078A1 (en) * | 1997-07-28 | 1999-02-04 | Daicel Chemical Industries, Ltd. | Degradable coat bearing granular compositions for agricultural and horticultural use, biodegradable resin composition, moldings and films of the same, process for the production of films, and degradable trash bags |
| JPH11514399A (en) * | 1995-09-28 | 1999-12-07 | バランアドバンストマテリアルズ（９４）リミテッド | Process for coating solid with coating material and process for producing solid with surface coated with coating material |
| CN101544521A (en) * | 2008-03-24 | 2009-09-30 | 郭强 | New material and technology for quickly coating compound fertilizer at normal temperature |
| JP2012514574A (en) * | 2009-01-09 | 2012-06-28 | スペシャルティー ファーティライザー プロダクツ エルエルシー | Quick-drying polymer coating |
| CN102690143A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing granular potassium chloride |
| JP2013521213A (en) * | 2010-03-03 | 2013-06-10 | エムオーエス ホールディングス インコーポレーテッド | Fertilizer composition having micronutrients and method for producing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52145175A (en) * | 1976-05-25 | 1977-12-02 | Central Glass Co Ltd | Process for producing slowly available coated fertilizer |
| JPS5460166A (en) * | 1977-10-21 | 1979-05-15 | Central Glass Co Ltd | Production of coated granular fertilizer |
| JPS5684391A (en) * | 1979-12-08 | 1981-07-09 | Chisso Corp | Coated granular fertilizer and its manufacture |
-
1992
- 1992-12-02 JP JP4345099A patent/JPH05279158A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52145175A (en) * | 1976-05-25 | 1977-12-02 | Central Glass Co Ltd | Process for producing slowly available coated fertilizer |
| JPS5460166A (en) * | 1977-10-21 | 1979-05-15 | Central Glass Co Ltd | Production of coated granular fertilizer |
| JPS5684391A (en) * | 1979-12-08 | 1981-07-09 | Chisso Corp | Coated granular fertilizer and its manufacture |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11514399A (en) * | 1995-09-28 | 1999-12-07 | バランアドバンストマテリアルズ（９４）リミテッド | Process for coating solid with coating material and process for producing solid with surface coated with coating material |
| WO1999005078A1 (en) * | 1997-07-28 | 1999-02-04 | Daicel Chemical Industries, Ltd. | Degradable coat bearing granular compositions for agricultural and horticultural use, biodegradable resin composition, moldings and films of the same, process for the production of films, and degradable trash bags |
| CN101544521A (en) * | 2008-03-24 | 2009-09-30 | 郭强 | New material and technology for quickly coating compound fertilizer at normal temperature |
| JP2012514574A (en) * | 2009-01-09 | 2012-06-28 | スペシャルティー ファーティライザー プロダクツ エルエルシー | Quick-drying polymer coating |
| JP2013521213A (en) * | 2010-03-03 | 2013-06-10 | エムオーエス ホールディングス インコーポレーテッド | Fertilizer composition having micronutrients and method for producing the same |
| US9199883B2 (en) | 2010-03-03 | 2015-12-01 | The Mosaic Company | Fertilizer composition containing micronutrients and methods of making same |
| CN102690143A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing granular potassium chloride |
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