Orthophosphoric acid is a compound with the H3PO4 structure that is also known as orthophosphoric acid. It is a non-toxic and non-volatile mineral acid. It has the look of a translucent crystalline solid or a non-colourless jelly. The variation in the chemical is due to the concentration. It has a stable crystalline form with a melting point of 42.35°C, although the solvent’s appearance is less condensed phosphorous acid.

Foam is an entity formed by captivated gas in a liquid or substantial substance bag. Foam is present in almost all everyday items, particularly soaps, detergents, and shampoos. However, foam is categorized as a concern in the manufacturing field. The formation of phosphoric acid typically causes the problem of foam in the chemical industry.

Manufacturing Process Of Phosphoric Acid

Orthophosphoric acid is produced by a process called a wet process. In this process, tricalcium phosphate rock or apatite is reacted. Its solution with approximately 32% to 46% H3PO4 is the product of this process. However, it can create a huge volume of foam and undesirable gases. The CO2 gas would be formed along with the high carbonate and organic matter in the phosphate rock. This CO2, distributed continuously in the reaction liquid, would eventually create a foam coating on the mixture that could exceed 5% to 10% of the reaction liquid volume.

The manufacture of phosphoric acid in this chemical production has certain drawbacks for orthophosphoric acid suppliers. The biggest problem for phosphoric acid manufacturers is manufacturing it safely, ensuring that these forms need to be released from production. Effects induced by foams are: the output potential is limited because it impacts dispersion and the reaction of acid hydrolysis; the consumption rate of the machinery is reduced, and the observation of the substance level is challenging to achieve.

The extraction tank’s temperature is increased, thereby hindering the reaction process; loss of the acid and causing environmental emissions as the foam is transported to the exhaust gas absorption device and the diffuser tank; could create a lethal or harmful impact due to its acidic properties.

Foam Vs. Defoamers In Production Of Phosphoric Acid

Foam is a big concern in the production of acid. Orthophosphoric acid suppliers must use defoamers to fix the issue created by foam. Defoamers are anti-foaming agents. Defoamers are used on a broad scale to extract foam that has disrupted development. Suppliers may render it optimally by adding a defoamer during the manufacturing process. There are several types of defoamers, depending on the needs of the supplier.

Defoaming Consists of Three Types of Action:

Foam Breaking-In these acts, the foaming agent is applied to the foaming material, allowing the foam to be dissolved instantly.

Removal of Foam-In these acts, the defoamer agent is applied to the liquid before the foam is formed so that the agent limits the liquid to foaming.

Deaerating-In this action, the foamed liquid would be mixed into one and accelerated to the surface. In short, the defoamer is used by manufacturers of phosphoric acid 85 to split the foam and control its regeneration and manage its regeneration to allow foam-free production. Since the ideal defoamer in the phosphoric acid industry is the one with the potential to eliminate surface foam but also reduce CO2 gas bubbles in the slurry industry, the Orthophosphoric acid suppliers need to start using a defoaming agent to aid the manufacturing of phosphoric acid to ensure that the defoamer supplier is safe and reliable.