After 20 years of hard work and independent innovation, China's gas-phase white carbon black industry has spurred a bloody road in the cracks of foreign giants, and has grown stronger and become an important member in the international market, avoiding the market changes. Suspension of risk.” At the 20th anniversary of the China Gas-Fluid Silica Innovation and Entrepreneurship held in Yichang on August 9th, Cao Xianjun, Chairman of China Fluorosilicon Organic Materials Industry Association, came to the scene.

As an important raw material of organic silicon and a key link in the industrial chain, fumed silica has played a vital role in the development of China's organic silicon industry. Although its dosage is not large, its role cannot be underestimated, especially for the silicone rubber industry. In terms of it, it has a "chip"-like role in the field of integrated circuits.
Before 2000, there were only two enterprises in China that supplied a small amount of fumed silica for the military industry, and the quality was poor and the technology was backward. At that time, Wang Yuelin, the deputy director and chief engineer of Guangzhou Baiyun Adhesive Factory, realized that “there must be its own fumed silica industry, so that it can no longer be breathed.” Under his leadership, Guangzhou Baiyun Adhesive Factory was established. The fumed silica project team began the road to innovation in the revitalization of the fumed silica industry.

This road is thorny and difficult. At that time, due to the gas phase method, white carbon black was mainly used in the military industry, and was subjected to strict technical blockade. The R&D team did not retreat. They contacted an expert from the Institute of Surface Chemistry of the Ukrainian National Academy of Sciences and purchased the technical process package from Ukraine after many twists and turns.

Ukrainian technology uses silicon tetrachloride as a raw material, and the size of the monomer unit is small. In order to adapt to the domestic raw material route and expand the scale, the project team improved and upgraded the technical process day and night, and finally completed the process design of producing fumed silica from monomethyltrichlorosilane as raw material, and expanded the capacity of the single device to 500 tons / year. In December 2001, China's first gas-blown white carbon black production line with independent intellectual property rights was born. China has also become the third country in the world to master the production of fumed silica by using monomethyltrichlorosilane as raw material.

Since then, China's fumed silica development team has insisted on self-reliance and progress. From technology research and development to equipment construction, from surface modification to standard setting, they have overcome various difficulties such as process technology, engineering design, accidental shutdown, and foreign enterprise suppression. They have cultivated China's fumed silica industry from a weak child. A strong, energetic young man.

A set of data shared by Cao Xianjun is enough to witness the glory of China's fumed silica industry: China's total production of fumed silica has reached 100,000 tons per year from less than 1,000 tons per year in 2002 to 100,000 times. The self-sufficiency rate is less than 40% in 2007 and the main varieties are completely self-sufficient in 2010. They are also exported to more than 50 countries and regions in the world, forming a market structure with Europe and the United States.

As the largest gas-phase white carbon black production enterprise in China, Yichang Huifu Silicon Material Co., Ltd. started late, but achieved an annual output of 8,000 tons in five years, becoming the only domestically-accepted silicone monomer. And the production of fumed silica technology from the by-products of polysilicon production process. Yichang Huifu also made progress to the mid-to-high end of the industry and built a high-end hydrophobic gas phase white carbon black production line with international advanced level, breaking the long-term monopoly of such products by foreign companies.