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2. Phosphoric acid - Wikipedia

   en.wikipedia.org/wiki/Phosphoric_acid

   The wet process is the most common method of producing phosphoric acid for fertilizer use. [23] Even in China, where the thermal process is still used quite widely due to relatively cheap coal as opposed to the sulfuric acid, over 7/8 of phosphoric acid is produced with wet process. [24]

3. OCP Group - Wikipedia

   en.wikipedia.org/wiki/OCP_Group

   The OCP Group (OCP S.A.) (formerly Office Chérifien des Phosphates) is a Moroccan state-owned phosphate rock miner, phosphoric acid manufacturer and fertilizer producer. [2] [3] Founded in 1920, the company has grown to become the world's largest producer of phosphate and phosphate-based products and it is one of the largest phosphate, fertilizer, chemicals, and mineral industrial companies ...

4. Urea phosphate - Wikipedia

   en.wikipedia.org/wiki/Urea_phosphate

   Urea phosphate is a 1:1 combination of urea and phosphoric acid that is used as a fertilizer. It has an NPK formula of 17-44-0, [1] and is soluble in water, producing a strongly acidic solution. Urea phosphate is available in fertilizer vendor bags that carry a UP signet on the packaging.

5. Phosphogypsum - Wikipedia

   en.wikipedia.org/wiki/Phosphogypsum

   Phosphogypsum (PG) is the calcium sulfate hydrate formed as a by-product of the production of fertilizer, particularly phosphoric acid, from phosphate rock. It is mainly composed of gypsum (CaSO 4 ·2H 2 O).

6. Feed phosphates - Wikipedia

   en.wikipedia.org/wiki/Feed_phosphates

   Example of phosphoric acid production. Wet-process phosphoric acid is prepared by adding sulfuric acid (H 2 SO 4) to apatite or tricalcium phosphate rock resulting in the following reaction: 3 H 2 SO 4 + Ca 3 (PO 4) 2 + 6 H 2 O ↔ 2 H 3 PO 4 + 3 CaSO 4 •2H 2 O Wet-process acid has to be purified by removing fluorine and other undesirable ...

7. ICL Group Ltd. - Wikipedia

   en.wikipedia.org/wiki/ICL_Group_Ltd.

   It is a manufacturer of specialty fertilizers and specialty phosphates, flame retardants and water treatment solutions. [11] ICL is majority controlled by the Israel Corporation, one of the largest Israeli conglomerates. In addition to the Dead Sea Works, Israel Chemicals mines phosphates in the Negev desert. [12] ICL Group serves customers in ...

8. Phosphoric acids and phosphates - Wikipedia

   en.wikipedia.org/wiki/Phosphoric_acids_and...

   Since the ends are condensed, its formula has one less H 2 O (water) than tripolyphosphoric acid. The general formula of a phosphoric acid is H n−2x+2 P n O 3n−x+1, where n is the number of phosphorus atoms and x is the number of fundamental cycles in the molecule's structure; that is, the minimum number of bonds that would have to be ...

9. Nitrophosphate process - Wikipedia

   en.wikipedia.org/wiki/Nitrophosphate_process

   The nitrophosphate process (also known as the Odda process) is a method for the industrial production of nitrogen fertilizers invented by Erling Johnson in the municipality of Odda, Norway around 1927. The process involves acidifying phosphate rock with dilute nitric acid to produce a mixture of phosphoric acid and calcium nitrate.