Phosphate fertilizer containing calcium carbonate.

Abstract

OCR 10KL (11 / 06 / 2568) Phosphate fertilizers containing calcium carbonate are white powders composed of calcium. Calcium carbonate and solutions of phosphate compounds, in which calcium... Carbonate is a product whose manufacturing process includes a solution of calcium acetate. Sodium carbonate solution; Polyvinyl alcohol solution. And water. This invention aims to obtain a fertilizer product with properties that allow for controlled release. Phosphate, in conjunction with the capture of the herbicide glyphosate.

Claims

OCR 10KL (11 / 06 / 2568) 1. Phosphate fertilizers containing calcium carbonate have the following components: -Calcium carbonate 82.00-93.00% by weight. - Solution of phosphate compounds (7.00-18.00% by weight) Calcium carbonate has a manufacturing formula that includes... -Calcium acetate solution 1.50-1.60% by weight / volume. -Sodium carbonate solution 1.00-1.10% by weight / volume. - Polyvinyl alcohol solution 1.00-1.55% by weight / volume. -Water 95.75-96.50% by weight per volume.

2. Phosphate fertilizers containing calcium carbonate, as per claim 1, where calcium acetate (Calcium The optimal concentration of acetate is 0.1 molar.

3. Phosphate fertilizers containing calcium carbonate, as per either claim 1 or 2, where the solution... The optimal concentration of sodium carbonate is 0.1 molar.

4. Phosphate fertilizers containing calcium carbonate, according to any one of claims 1-3, where the poly solution... The optimal concentration of polyvinyl alcohol is 15 milligrams per liter.

5. Phosphate fertilizers containing calcium carbonate, as per any one of claims 1-4, where water... The ideal choice is deionized water.

6. Phosphate fertilizers containing calcium carbonate, according to any one of claims 1-5, in which the compound... Phosphate can be selected from potassium dihydrogen phosphate. Phosphate) sodium dihydrogen phosphate (or ammonium diphosphate) Either hydrogen phosphate (ammonium dihydrogen phosphate).

7. Phosphate fertilizers containing calcium carbonate, according to any one of the claims 1-6, where the phosphate fertilizer contains... The ideal calcium carbonate mixture contains the following components: -Calcium carbonate 88.33% by weight. - Solution of phosphate compound (11.67% by weight) 8. The process for producing phosphate fertilizers containing calcium carbonate, as described in any one of claims 1-7, is possible. The steps are as follows: A. Dissolve polyvinyl alcohol in water by heating it to a temperature of 60-80°C. Stir until the solution is clear, for 1-2 hours. Then let it cool to 25-30 degrees Celsius. Celsius for 45-60 minutes. B. Add calcium acetate to the solution from step A and stir for 30 minutes. minute C. Add the sodium carbonate solution to the solution from step B and continue stirring. 8-12 hours D. Filter the mixture from step C to separate the calcium carbonate precipitate. The carbonate was removed from the solution using filter paper and then dried in an electric oven at 60 degrees Celsius. Celsius for 12 hours. e. Add a solution of phosphate compound to the calcium carbonate powder. Add the carbonate obtained from step d and continue stirring for 12 hours. F. Filter the mixture obtained from step E to separate the precipitate from the solution using filter paper. Dry them in an electric oven at 60 degrees Celsius for 12 hours.

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