Patents of China United Chemical

#Zhonglian Chemical Deepens Its Silica Industry, Demonstrating Its Technological Strength with Three Patents Throughout the development of the silica industry, Shandong Zhonglian Chemical Co., Ltd. (hereinafter referred to as "Zhonglian Chemical"), through its unwavering commitment to technological innovation, has successfully developed and applied for multiple core patents, achieving technological breakthroughs in three key areas: nanosilica production, processing of food silica anti-caking agents, and colloidal silica purification.

This patent-driven industry upgrade highlights its leading position in this field. ## Continuous Production Equipment Breaks the Gap: A New Approach to Efficient Nanosilica Preparation To address the challenges of nanosilica production efficiency and product stability, Zhonglian Chemical independently developed "a continuous nanosilica production device."

Its application was accepted by the State Intellectual Property Office on November 21, 2024, under patent number 202422847685.5. This patented device overcomes the limitations of traditional batch production methods and achieves continuous nanosilica preparation through optimized production process design.

The patent acceptance documents indicate that the device's technical solutions have formed a complete patent protection system, encompassing five claims. The accompanying specification (one copy, four pages) and accompanying drawings (one copy, three pages) detail the device's structure and operating principles.

This innovative design is expected to not only improve nano-silica production efficiency and reduce human intervention during the production process, but also ensure product particle size uniformity and quality stability. This lays a solid foundation for the application of nano-silica in high-end materials, electronic components, and other fields, further broadening Zhonglian Chemical's competitiveness in the nano-product market.

## Airflow Milling Technology Upgrade: Further Improving the Quality of Food Silica Anti-caking Agents. As an important anti-caking agent, food-grade silica requires extremely high purity and particle fineness. Zhonglian Chemical has specifically developed a "super-airflow milling device for producing food silica anti-caking agents."

The patent application was accepted by the State Intellectual Property Office on November 21, 2024, with patent number 202422847882.7. This patented device focuses on the core needs of food-grade product production. It utilizes super-airflow pulverization technology to effectively address the challenges of traditional pulverization methods, which are prone to introducing impurities and making it difficult to precisely control particle size.

The patent documents indicate that the device includes as many as eight claims. The specification (one copy, seven pages) and accompanying drawings (one copy, five pages) provide detailed descriptions of key components, including the pulverization chamber structure, airflow control system, and impurity filtration mechanism.

The food silica anti-caking agent produced using this device can better meet the food industry's stringent safety and functionality standards and can be widely used in food processing applications such as milk powder, solid beverages, and condiments. This will help Zhonglian Chemical consolidate its expertise in the food-grade silica market and provide food companies with higher-quality raw materials.

## Purification Process Innovation: Breakthrough in the Preparation of High-Purity Colloidal Silica. The purity of colloidal silica directly determines its application value in high-end fields such as medicine and electronics. Zhonglian Chemical's application for "A Colloidal Silica Purification Device" was accepted by the State Intellectual Property Office on January 18, 2025, under patent number 202520116963.1.

This patented device utilizes an innovative purification process design to construct a highly efficient impurity removal system, significantly improving the purity of colloidal silica. According to the patent acceptance documents, the device includes six claims, and the specification (one copy, four pages) and accompanying drawings (one copy, three pages) detail key steps in the purification process, including separation, filtration, and refining. High-purity colloidal silica is in high demand in areas such as pharmaceutical excipients and precision electronic component coatings. The implementation of this patented technology will position Zhonglian Chemical in the high-end colloidal silica market, further improving the company's comprehensive silica product portfolio and demonstrating its deep technological expertise in niche areas.

The centralized application and acceptance of these three patents not only directly reflects Zhonglian Chemical's technological innovation capabilities, but also demonstrates the company's precise grasp of the technical pain points in the upstream and downstream silica industry. In the future, with the gradual transformation and application of these patented technologies, Zhonglian Chemical will continue to enhance its core competitiveness in the silica field, injecting new momentum into the industry's high-quality development.