SI23637A - Fizzy tablets fertilizer - Google Patents

Abstract

The present invention relates to a process for producing fertilizers in the form of effervescent tablets made from an active substance, an acid, a base, a lubricant, a binder, a filler, and a color. Said fertilizer in the form of effervescent tablets according to the invention comprises the following ingredients: between 20% and 40% by weight of said active substance, between 40% and 60%, preferably 45% of said acid, between 10% and 30% by weight, preferably 15%, of said base, between 1% and 3%, preferably 2%, of said lubricant, between 1% and 3%, preferably 1.8% of said binder, between 5% by weight and 10% by weight, preferably 7%, of said filler, between 0.1% by weight and 0.5% by weight, preferably 0.2%, of said color.

Description

Fertilizer in the form of effervescent tablets

The present invention relates to a fertilizer in the form of effervescent tablets, consisting of one or more active substances, of two bubble release agents which simultaneously create a microclimate with increased concentration of CO2, paint, lubricant, binder and filler.

There are currently various fertilizer pills on the market. However, they are not practical to use, because the dissolution time is very long, additional mixing is required and some of them may settle. However, the fertilizers, which are in soluble form, are in the form of dust, which is a problem with the dosage, can lead to overdose and consequently damage to the plants, it is time consuming for the user, the user does not always have a weighing device available, the user should always calculate concentrations (incorrect calculations can cause damage to plants), losses (dusting) can occur, and these fertilizers require mixing. None of these fertilizers form a microclimate of CO2, which allows plants to grow better because CO2 is the main carbon source for photosynthesis.

Also, there are effervescent tablets on the market, but they are not used for these purposes.

It is an object of the invention to design such a composition and process that will provide a stable product with a sufficiently high content of active substances and rapidly dissolve in water, and form a suitable microclimate for plant growth.

The fertilizer in the form of effervescent tablets according to the invention is a mixture containing:

a) active substance, 20-40% b) acid, 40-60% c) base, 10-30% d) lubricant, 1-3% θ) binder, 1-3% f) filler, 5-10% g) color 0.1-0.5%

Said active substances, comprising between 20% and 40% by weight of said tablet according to the invention, comprise various inorganic salts: ammonium sulfate, diammonium phosphate, potassium sulfate, potassium nitrate, monoammonium phosphate, tetracallium pyrophosphate, ammonium nitrate, triple superphosphate monocalcium phosphate, potassium chloride, sodium nitrate, calcium nitrate, ammonium sulphate nitrate, limestone ammonium nitrate, superphosphate, ammonia superphosphate, magnesium ammonium phosphate, potassium polyphosphate, magnesium potassium sulfate, magnesium sulfate, tri-magnesium di-sulfate, tri-magnesium sulfate, tri-magnesium sulfate NPK fertilizers (nitrogen, phosphorus and potassium) and mixtures thereof. The content of the above ingredients in the active substance is as follows:

a) that it provides an adequate nutrient ratio for the plants (depending on the needs of each plant)

b) that it provides an adequate ratio of nutrients for the possibility of registration {EC Regu / ative REGULATION (EC) No. 2003/2003 OF THE EUROPEAN PARLIAMENT / N COUNCIL Commission Regulation (EC) No 1020/2009 of 28 October 2009 amending Regulation (EC) No 2003/2003)

c) to ensure the lowest hygroscopicity of the fertilizer

Said acid or acid salts, which is essentially a means of dissolving faster and creating a microclimate of CO2, and constitutes between 40% and 60% by weight of the tablet. Such acid can be one of the following: citric acid, tartaric acid, ascorbic acid, fumaric acid, maleic acid, adipic and succinic acid, acetylsalicylic acid, nicotinic acid and the acid anhydrides thereof. In addition, the following acid salts can be used: sodium dihydrogen phosphate, disodium dihydrogen pyrophosphate, acid citrate salts, amino acids hydrochloride and sodium acid sulfite. Preferably citric acid.

Said base, which is essentially a vehicle for faster dissolution and formation of a CO2 microclimate, and represents between 10% and 30% by weight of the tablet. Such acid may be one of the following: sodium bicarbonate and carbonate, potassium bicarbonate and carbonate, sodium glycine carbonate, l-lysine carbonate, arginine carbonate, calcium carbonate and Effersoda. Preferably sodium hydrogen carbonate.

Said lubricant helps to make the compression process easier. It allows the tablets to not stick together. The binder reduces the surface roughness of the seals. Said lubricant represents between 1% and 3% by weight of the tablet. Such lubricant may be one of the following: magnesium stearate, sodium benzoate, sodium chloride, lauryl sulfate sodium acetate, polyethylene glycol 6000, polyethylene glycol 4000 and mixtures thereof. Preferably polyethylene glycol 4000.

These binders help to formulate formulations suitable for tablet compression. They are added to prevent the tablet from collapsing too quickly. The binder must be completely soluble in water and must not leave insoluble residue. It must also have a low moisture content. It must be effective in smaller quantities. Said binder represents between 1% and 3% by weight of the tablet. Such a filler may be one of the following: polyvinylpyrrolidone (PVP), polyethylene glycol 6000 and polyethylene glycol 4000. Preferably polyethylene glycol 4000.

This filler should be affordable, it should not affect the pH value, it should be well soluble in water, the particle size should be in the range of other ingredients, it should be well compressible. Said filler represents between 5% and 10% by weight of the tablet. This filler may be one of the following: sodium bicarbonate, sodium sulfate, lactose, mannitol, sorbitol. Preferably sodium bicarbonate.

These colors provide the commercial benefits of tablets. The color gives a more beautiful appearance to both the solution and the tablet itself, and also allows identification of the preparation. Said filler represents between 0.1% by weight and 0.5% by weight of the tablet. This color may be one of the following: a carotoneide derivative, a chlorophyll derivative, and mixtures thereof. Preferably chlorophyll derivatives.

The fertilizer in the form of effervescent tablets of the invention is produced by the process as follows.

Mixing of raw materials, tableting and packing in silica gel tubes in a stopper. The whole process must be carried out under the following conditions: below 10% air humidity and at temperatures between 15-20 ° C. The process is used in pharmacy and is standard, the difference is only in the lower temperature and relative humidity during the production process. The reason is the hygroscopicity of the active substance, which exponentially increases with temperature.

Unichem d.o.o.

Claims (11)

Patent claims 1. Fertilizer in the form of effervescent tablets, consisting of the active substance, acid, base, lubricant, binder, filler and color, characterized in that it contains: a) between 20% and 40% by weight of said active substance b) between 40% and 60% by weight, preferably 45%, of said acid c) between 10% and 30% by weight, preferably 15%, of said base d) between 1% and 3% by weight, preferably 2%, of said lubricant e) between 1% by weight and 3% by weight, preferably 1.8%, of said binder f) between 5% and 10% by weight, preferably 7%, of said filler g) between 0.1% and 0.5% by weight, preferably 0.2%, of said color Fertilizer in the form of Summary tablets according to claim 1, characterized in that said active substance provides a composition for plants with a sum of NPK 3 to 70, meets the legal requirements and has the lowest hygroscopicity. Fertilizer in the form of effervescent tablets according to claim 1, characterized in that said acid allows the tablet to dissolve rapidly and release CO ₂ from the base and make microclimate around plants with increased CO ₂ content. 4. The effervescent tablet fertilizer according to claim 1, characterized in that said base permits rapid dissolution of the tablet and the CO ₂ source from the base and makes a microclimate around plants with increased CO ₂ content. Fertilizer in the form of effervescent tablets according to claim 1, characterized in that said lubricant prevents the tablets from sticking to one another and adhering to the tablet compression equipment. Fertilizer in the form of effervescent tablets according to claim 1, characterized in that said binder provides adequate stability of the tablet itself during the user handling and manufacturing process. Fertilizer in the form of effervescent tablets according to claim 1, characterized in that said filler allows the water solubility and compressibility of the tablet. Fertilizer in the form of effervescent tablets according to claim 1, characterized in that said color provides a better appearance of the tablet and solution, and also enables the identification of different products. 9. A process for making fertilizer in the form of effervescent tablets according to claims 1 to 8, characterized 5, comprising the following steps: a) mixing b) tableting c) packing in silica gel tubes in a cap 10. A method according to claim 9, characterized in that at humidity below 10% air humidity, preferably 9% air humidity, is carried out at a temperature between 15 ° C and 20 ° C, preferably 18 ° C. 11. Fertilizer in effervescent tablet form according to claims 1 to 10.