January 20, 2023

Leaching extraction process

Solid/liquid extraction is sometimes called leaching. When the soluble component is incorporated in a liquid, liquid/liquid extraction may be applied to recover the valuable soluble component.

Leaching process is influenced by processes such as desorption, complexation, and mineral dissolution. Commonly the extract is the product or intermediate product and the residue is a waste or byproduct.

Leaching is one of the oldest operations in chemical industries which involves the use of solvent to remove a solute form a solid mixture.

A solvent dissolves a solute, which is an element. As a result, the solvent will turn into a liquid, while the solute will be the component extracted from the solid matrix. Furthermore, in tea for example, the solute would be the extracted green tea, and the solvent would be hot water. In this example, the hot water removes substances from the solid matrix, i.e., the tea in the bag.

Leaching process is widely used in the biological and food processing industries for the separation of sugar from sugar beets with hot water, or for the extraction of oil from peanuts, soybeans, and sunflower seeds. Likewise, many pharmaceutical products are obtained by leaching plant roots, leaves and stems.

The advantages of leaching process include:
*Easy to execute.
*It is not very harmful when compared to pyrometallurgical methods.
*Does not generate any gaseous pollutants.
Leaching extraction process

The Most Popular Posts

  • Carbonation is an important sensory property for the acceptability of many beverages because it elevates aroma and produces an appealing mouthfeel often de...
  • Commonly, laksa leaf or Vietnamese coriander or daun kesum (*persicaria odorata*) is used as a herb or seasoning in various unique dishes, especially in la...
  • Most American today are overfed yet undernourished, which eventually leads to obesity and poor health. The answer to those pervasive problem is simply to ...