Recently, the invention patent of "a method for purifying benzoic acid" declared by Tween Company has been awarded by the State Intellectual Property Office.

At present, most manufacturers in our country use toluene oxidation to prepare benzoic acid, which contains a lot of impurities, and now the market of industrial benzoic acid has been saturated, the profit of manufacturers is very low. However, with the development of technology, the market demand of high-quality food-grade benzoic acid, feed-grade benzoic acid and pharmaceutical-grade benzoic acid has risen sharply, and the profit margin is large, so they are widely used.

The invention patent will greatly shorten the reaction circuit, reduce costs, improve yield and reduce environmental pollution in production process. The preparation and purification of high quality benzoic acid for market supply can achieve better economic and social benefits.

So far, the company has more than 30 valid patents, including 2 authorized invention patents, 17 utility model patents and 2 design patents.

In recent years, these patent achievements have accumulated momentum for the company's future development, effectively protected the company's invention achievements, further enhanced the company's product technology content, improved the core competitiveness of enterprises, and provided a strong scientific and technological support for the company's further development.