At the 7th National New Material Technology Forum for the Rubber Industry, held on October 16th, a reporter found out that the rubber chemicals sector has made notable progress in adjusting its product structure. However, the management of "three wastes" — waste gas, waste water, and solid waste — during the production of intermediates and final products remains unsatisfactory. Reducing these emissions and achieving cleaner production is expected to be a major focus for the industry in the coming years.
Fan Rende, secretary-general of the China Rubber Industry Association, told reporters that recent years have seen rubber accelerators and antioxidants become more environmentally friendly and safer, contributing to the stable development of the rubber industry. Nonetheless, many rubber auxiliaries still struggle with the issue of "three wastes" not meeting standards, which limits their production capacity. Improving process control and moving toward cleaner production are now the biggest challenges for the auxiliary industry.
It is widely acknowledged that the problem of "three wastes" remains unsolved globally, particularly in the production of accelerator M. The treatment of waste residue and wastewater in the rubber chemicals industry is also a long-standing challenge worldwide. Current methods are not effective enough. Lin Qingsong, chairman of Zhejiang Ultrafine Chemical Co., Ltd., and Meng Qingbao, chief engineer at Tianjin Labo Auxiliary Chemicals Co., Ltd., emphasized that if issues like "three wastes," noise, and dust pollution are not addressed, it will not only hinder the healthy growth of the rubber chemicals sector but also negatively impact the entire rubber processing industry chain.
When asked about how to tackle the "three wastes" issue in rubber chemical production, Xu Chunhua, chairman of the China Rubber Specialist Committee, suggested that companies should collaborate with research institutions to enhance existing treatment technologies and learn from advanced foreign processes. It is also important to clean up and eliminate small-scale, inefficient facilities, promoting an intensive development model. Additionally, the industry must actively develop and promote new clean production processes.
Xu mentioned that the problem of accelerator M has already been partially resolved, and solving this issue marks a significant step forward. Theoretically, a new synthesis route using aniline, nitrobenzene, and carbon dioxide as raw materials could completely address the "three wastes" problem, reduce costs, and enable continuous production. This technology should be implemented as soon as possible through industrialization. Similarly, the use of hydrogen peroxide and oxygen as oxidants in the production of DM, CZ, and thiuram accelerators can effectively reduce gas pollution and produce almost no wastewater. For instance, a new process developed by Danxian Chemicals using oxygen as an oxidant for DM production is worth promoting.
For anti-aging agents, efforts should continue to advance the clean production process using aniline and nitrobenzene as raw materials, along with solid acid catalysts for the one-step production of antioxidant RD. These innovations represent key steps toward a more sustainable and environmentally responsible rubber chemicals industry.
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