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In the production of organic acids such as citric acid and lactic acid, the traditional calcium salt method is lengthy, costly, and heavily polluting. As an advanced alternative, solvent extraction method offers significant advantages, but its efficiency depends directly on…

H-acid, as a key naphthalene dye intermediate, plays an important role in the production of acid dyes, reactive dyes, and pharmaceutical synthesis. During its production process, sulfuric acid or hydrochloric acid is often used in the acidification step to precipitate…

In contemporary technology and industry, rubidium and cesium, as important alkali metal elements, play irreplaceable roles in advanced applications such as atomic clocks, optoelectronic materials, specialty glass, and energy conversion due to their unique physicochemical properties. However, these two elements…

In today’s era of energy transition and rapid development of the electronics industry, cobalt as a critical strategic metal, has become increasingly important. Cobalt sulfate, one of the key salt compound of cobalt, serves not only as a raw material…

Pickling is an essential process in the metal processing, electroplating, and steel industries. However, the resulting pickling wastewater, rich in hydrochloric acid and heavy metals, has long been a major environmental challenge and financial burden for companies. Traditional lime neutralization…

In many industrial fields such as chemical engineering, pharmaceuticals, environmental protection, and hydrometallurgy, it is often necessary to separate specific components from a liquid. In industry, this process is known as extraction. The efficiency of extraction directly determines the product’s…