1、Granular Single Super Phosphate 颗粒超级磷酸肥 — Ace

We provide high quality phosphate fertilizers from Egypt. 原产埃及高品质磷矿石肥料系列。

2、Understanding phosphorus fertilizers

In the dry process, an electric furnace treats rock phosphate. This treatment produces a very pure and more expensive phosphoric acid – frequently called white or furnace acid – primarily used in the food and chemical industry.

3、Phosphorus Fertilizers

Phosphorus is applied as ammonium phosphates or superphosphate, and phosphorus fertilizers are often characterized by their (N–P–K, nitrogen–phosphorus–potassium) composition.

4、Phosphate Fertilizers: Types, Production, Advantages

Phosphate fertilizers are created from phosphorites, which can be sedimentary or magmatic. Apatite is the most significant mineral. Phosphate fertilizers are primarily generated from phosphate rock, a natural material with high phosphorus concentrations.

5、White Granular Water Soluble Fertilizer Ammonium Nitrate Phosphate Anp

Product DescriptionAmmonium Nitrate Phosphate (ANP) is white granular which easy soluble in water and easy hygroscopic in air. It is a new type high-efficient compound fertilizer.

What Are the Water

Diammonium phosphate (commonly 18-46-0) delivers more N with P in a single granule, dissolves fast, and is a popular phosphate fertilizer for cereals. Use care on very alkaline soils where free ammonia at the seed can be an issue.

How Is Granular Fertilizer Made? NPK Fertilizer

Granular fertilizer is a common form of fertilizer that is made through a number of steps, including raw material handling, mixing, granulation, drying and packaging. The following is a detailed description of the granular fertilizer manufacturing process and the associated processes.

White Granular Phosphate Fertilizer Mono Ammonium Phosphate MAP

Monoammonium Phosphate is completely water soluble, generally applied in the granular form and used in the formulation of suspension fertilizers. As a granular material, it mixes well and frequently serves as an ingredient in bulk-blended fertilizers.

Understanding granular fertilizers: How they work and best uses

What are Granular Fertilizers? Granular fertilizers are one of the most important types of fertilizer. They are dry, solid, and granular and contain essential nutrients to fulfill the soil’s nutrient requirements. Granular fertilizers may be controlled-release or water-soluble.

Granular Monoammonium Phosphate(GMAP) 4

In agriculture, used as non-chloride N and P binary compound fertilizer, its total nutrients (N+P2O5) are 73%, it is a high quality basic raw material of N, P and K elements ternary compound fertilizer.

White granular phosphate fertilizers typically refer to phosphate salt fertilizers, with primary components being calcium dihydrogen phosphate (Ca(H₂PO₄)₂) or calcium hydrogen phosphate (CaHPO₄·2H₂O). These fertilizers are widely used in agriculture due to their ability to provide essential phosphorus for plant growth.

Ingredient Analysis

1. Calcium Dihydrogen Phosphate: The most common white granular phosphate fertilizer, with the chemical formula Ca(H₂PO₄)₂. Composed of calcium, phosphorus, and hydrogen, the phosphorus in this compound exists as orthophosphate ions. While it has a high phosphorus content, its poor water solubility requires mixing with organic matter during application. In soil, it gradually decomposes into phosphoric acid and lime, releasing phosphorus for plant absorption.

2. Calcium Hydrogen Phosphate: With the formula CaHPO₄·2H₂O, this compound has better water solubility than calcium dihydrogen phosphate, making it easier for plants to absorb. It is often used in liquid phosphate fertilizers, such as calcium dihydrogen phosphate solutions.

Manufacturing Process

The production of white granular phosphate fertilizers involves the following steps:

1. Raw Material Preparation: Phosphate salts are extracted from phosphate rocks (e.g., apatite) and crushed. The ore is then mixed with limestone to form a lime-phosphate rock blend.
2. Chemical Reaction: The mixture is heated to convert phosphorus into soluble phosphate salts. High-temperature reactions occur, such as phosphorus reacting with calcium carbonate (CaCO₃) to form calcium phosphate or with silica to produce calcium silicate.
3. Filtration and Washing: Unreacted materials and impurities are removed through filtration and washing, leaving a pure phosphate salt solution.
4. Concentration and Crystallization: The solution is concentrated and crystallized via evaporation or cooling to stabilize its properties.
5. Drying and Granulation: The crystalline product is dried and ground into granular form for final use.

Applications

White granular phosphate fertilizers are widely used in agriculture, particularly for:

1. Rice: A major consumer of phosphate fertilizers, both calcium dihydrogen phosphate and calcium hydrogen phosphate promote root growth, disease resistance, and yield.
2. Vegetables: Essential for leafy crops (e.g., spinach, lettuce), these fertilizers enhance photosynthesis, quality, and productivity.
3. Fruit Trees: Moderate phosphorus application improves fruit development, taste, and nutritional value.
4. Lawns: Used to nourish grass, ensuring healthy growth and resilience.

Precautions

While effective, careful use of white granular phosphate fertilizers is critical:

1. Rational Application: Excessive use can lead to phosphorus accumulation in soil, disrupting ecological balance and causing acidification. Follow "appropriate application rates" based on crop needs and soil conditions.
2. Pollution Prevention: Overuse may cause eutrophication of water bodies. Opt for environmentally friendly fertilizer products and adhere to safety standards.
3. Combined Fertilization: For optimal results, pair phosphate fertilizers with other nutrient sources (e.g., nitrogen, potassium) to achieve balanced fertilization.

White granular phosphate fertilizers, primarily composed of calcium dihydrogen phosphate and calcium hydrogen phosphate, play a vital role in agriculture by promoting crop growth and yield. sustainable use practices—such as avoiding overapplication, preventing pollution, and integrating nutrients—are essential to ensure long-term agricultural sustainability.