JPH0555478B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a method for preventing separation of liquid organic fertilizer. Specifically, the present invention relates to a method for preventing two-layer separation of liquid fertilizers such as liquid fertilizers, paste fertilizers, and suspended fertilizers using organic fertilizer as a dispersoid and water as a dispersion medium. [Prior art] Conventionally, organic liquid fertilizers containing yeast, blackstrap molasses, fishmeal, protein, amino acids, inorganic salts, etc., produce sediment over time due to differences in specific gravity, and are economically unstable due to crystal growth of finely ground inorganic salts. The generation of precipitates is the cause of the two-layer separation. During use, even if you stir the liquid fertilizer that has separated into two layers, it is not possible to return it to a uniform liquid fertilizer.
This reduces the product value by clogging fertilization pipes, etc. Therefore, various proposals have been made to prevent double-layer physics. In other words, for sediments caused by differences in specific gravity such as yeast and fish meal, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, guar gum, xanthan gum,
Polyvinyl alcohol, etc. are being considered. [Problems to be Solved by the Invention] However, in order to prevent two-layer separation using the additive, a large amount must be used, which impairs fluidity. In addition, for precipitation over time due to crystal growth of finely ground inorganic salts, EDTA, citric acid,
Chelating agents such as polycarboxylic acids have been investigated, but no satisfactory effects have been obtained. Therefore, in order to solve this problem, the present inventors conducted intensive research and found that by blending wax containing an emulsifying surfactant into liquid organic fertilizer and stirring it, sedimentation over time due to the difference in specific gravity can be prevented. The present invention was completed based on the discovery that it not only prevents the crystal growth of finely ground inorganic salts but also has excellent fluidity because it does not increase the viscosity of liquid organic fertilizers. . [Means for Solving the Problems] That is, the present invention provides a method for preventing separation of a liquid organic fertilizer, which is characterized in that a wax containing an emulsifying surfactant is present in the liquid organic fertilizer. It is. The waxes used in the present invention include animal waxes (spine whale oil, beard whale oil, beeswax, wool wax, etc.), vegetable waxes (carnauba wax, cotton wax, etc.), and petroleum waxes (paraffin wax, microcrystalline wax, petrolatum, etc.) It is. Furthermore, the emulsifying surfactant used in the present invention is one that emulsifies the wax used in the present invention, and the ionicity of the anionic surfactant, nonionic surfactant, and amphoteric surfactant is It does not matter, but if the target of liquid fertilizer is agricultural products and economic efficiency is taken into consideration, nonionic surfactants such as polyoxyethylene sorbitan ester, polyoxyethylene alkyl ether, polyoxyethylene higher fatty acid ester, etc. is preferred. The reason why the wax containing a surfactant with emulsifying properties used in the present invention is excellent in preventing two-layer separation of liquid fertilizer is that in the case of yeast and fishmeal, which cause sedimentation over time due to differences in specific gravity, It is thought that no precipitation occurs because the emulsified wax is destroyed during stirring and adheres to the surface of yeast, fish meal, etc., and the specific gravity is adjusted to be close to that of water. In addition, in the case of precipitates caused by crystal growth of finely ground inorganic salts over time, the wax destroys the surface of the finely ground inorganic salts as described above, and the specific gravity is adjusted to be close to that of water, resulting in precipitation. It is considered that this will not occur. Furthermore, since the wax has been destroyed, crystal growth will no longer be observed on the surface of the inorganic salt where the inorganic salt partially dissolved in water is dispersed to prevent recrystallization during the production of liquid fertilizer. Conceivable. The amount of the anti-separation agent added to the liquid fertilizer according to the present invention varies depending on the type of liquid organic fertilizer, such as liquid fertilizer, paste fertilizer, and suspended fertilizer, and also depends on the type of organic raw material and the amount of inorganic raw material added to the organic raw material. It varies depending on the type and proportion, but in general
0.01% to 5% by weight is preferred. Further, the blending ratio of the emulsifier to the wax is more preferably in the range of 0.5% by weight to 50% by weight. As organic raw materials in the target fertilizer of the present invention, yeast, waste molasses, fish meal, alcohol, fermentation waste liquid, etc. are used. In addition, examples of inorganic raw materials to be added to these include urea, ammonium sulfate, ammonium phosphorus, sulfurization, and sulfurization. When carrying out the present invention, the effect can be maximized by adjusting the liquid fertilizer in advance and then adding wax containing a surfactant with emulsifying properties, or by reducing the amount added. It is also more preferable. Furthermore, depending on the wax used, it is more preferable to heat the wax to its melting point in order to quickly prepare the liquid fertilizer. In carrying out the present invention, conventionally known additives such as thickeners (carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, guar gum, xanthan gum, polyvinyl alcohol, etc.), inorganic salt crystal growth inhibitors (EDTA, citric acid, etc.) acid, polycarboxylic acid, etc.) may be blended. Furthermore, there is no problem in adding preservatives, fragrances, dyes, etc. EXAMPLES Next, the present invention will be specifically explained with reference to Examples, but the present invention is not limited to these Examples. [%, parts are based on weight] Example 1 [Liquid fertilizer] 50 parts of water, 15 parts of yeast powder as an organic raw material, 25 parts of blackstrap molasses, 5 parts of urea as an inorganic raw material, ammonium nitrate
2.5 parts of potassium chloride and 2.5 parts of potassium chloride were added and mixed with stirring to obtain a liquid fertilizer. This was mixed with the anti-separation agent described later in the proportions shown in Table 1, and after stirring and mixing, 100ml was put into a 100ml graduated cylinder and tested for stability over time at 40℃. Shown in the table. In addition, when using beeswax, apply liquid fertilizer in advance.
It was heated to 60°C to 80°C. Example 2 [Paste fertilizer] 19.8 parts of water, 10 parts of yeast powder as an organic raw material,
Add 10 parts of fishmeal and 40 parts of waste molasses to 10 parts of urea, 5 parts of ammonium nitrate, and 2.5 parts of potassium chloride as inorganic raw materials, then add 0.2 parts of xanthan gum as a thickener, and stir and mix to obtain a paste fertilizer. Ta. This was mixed with the anti-separation agent described later in the proportions shown in Table 2, mixed with stirring, and then 100 ml was put into a 100 ml mesh cylinder and tested for stability over time at 40°C. Shown in the table. In addition, when using 110 degreeC paraffin, the paste fertilizer was previously heated to 60 degreeC - 80 degreeC. [Separation inhibitor composition] Test [A]: 95 parts of beeswax, 5 parts of Neugen EA-70 (polyoxyethylene nonyl phenyl ether, product manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) 5 parts sample [B] : Beeswax 80 parts, Neugen EA-70, 20 parts Compound product sample [C]: Bound whale oil 90 parts, Sorgen 40 (Sorbitan monooleate, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., product name below) 10 parts Compound product sample Test [D]: 70 parts of bearded whale oil, 40 parts of Sorgen, 30 parts of compound test [E]: 110℃ 70 parts of paraffin, Neugen ET
-80E (polyoxyethylene alkyl ether,
(Product name manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd. Same as below) 30
Compound product sample [F]: 50 parts of paraffin at 110℃, Neugen ET
−80E, 50 parts combination product

【table】

[Table] [Effects of the Invention] By the method of the present invention, that is, by blending wax containing an emulsifying surfactant into liquid organic fertilizer, sedimentation due to the difference in specific gravity and finely ground inorganic Not only does it prevent the growth of salt crystals, but it also does not increase the viscosity of the liquid organic fertilizer, so it exhibits extremely excellent fluidity.

Claims (1)

[Scope of Claims] 1. A method for preventing separation of a liquid organic fertilizer, which comprises making a wax containing an emulsifying surfactant exist in the liquid organic fertilizer. 2. The method for preventing separation of a liquid organic fertilizer according to claim 1, wherein the wax containing an emulsifying surfactant is blended in a proportion of 0.01 to 5% by weight based on the liquid organic fertilizer. 3. The method for preventing separation of liquid organic fertilizer according to claim 1 or 2, wherein the surfactant is blended in a proportion of 0.5 to 50% by weight based on the wax.