【Ten Years of Rapid Development in Chemical Equipment】The pilot-scale production technology for domestic 1,3-butanediol passed technical appraisal from 2003 to 2023
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Witnessing the decade-long rapid development of chemical processing equipment, I admire the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families enjoy peace and good health. By contributing our ideas, we can create a more lively atmosphere; HaiChuan becomes even better with your participation. Everyone is welcome to join in the forum discussions. ------------------------------------------------------------------ Recently, Jiangsu Huachang Chemical Co., Ltd.’s \"pilot-scale production technology for 1,3-butanediol\" passed the evaluation by the Jiangsu Province Science and Technology Achievement Appraisal Committee. The appraisal committee unanimously agreed that this project developed technologies such as distillation for acetaldehyde condensation reactions, falling-film evaporation for acetaldehyde recovery, and jet-loop hydrogenation. The pilot production line with an annual capacity of 200 tons built as part of this project enabled a complete integration of the various process steps; the purity of the product reached ≥99.5%. The project also resulted in the development of an industrial-scale production technology package, with 1 invention patent obtained. This filled a gap in domestic industrial production technologies, and the product’s performance metrics are at the international advanced level.
As a safe and non-toxic synthetic chemical raw material, 1,3-butanediol is used not only in daily chemical products but also in the synthesis of paints and anti-corrosion agents; it is also widely applied in the field of environmentally friendly coatings. It took Huachang Chemical six years to progress from laboratory results to successful pilot tests in 2017; the pilot-scale process package was developed successfully in 2018. In 2021, more than 20 million yuan was invested in building a pilot plant, and pilot production along with evaluation of the results were achieved in 2022.
Under the monopoly control of the technology and product markets, the global annual production of 1,3-butanediol does not exceed 30,000 tons, and its price is several times higher than that of other butanediol products, which limits its use in downstream industries. This project broke the foreign technological monopoly, developed its own proprietary technologies, and established a mutually beneficial upstream and downstream industrial chain for Huachang’s current production operations. Huachang utilized its own patented new technologies and proprietary techniques to conduct pilot-scale production tests for 1,3-butanediol. The 1,3-butanediol produced by the pilot plant achieved a level that is leading in China in terms of product yield, quality, and material consumption ； Compared to international standards, the quality of 1,3-butanediol meets the product quality requirements of foreign companies.
It is reported that while focusing on the core of its business, Huachang Chemical has keenly identified new trends, actively pursued transformation in the field of organic chemicals, and made long-term investments in the area of new materials, achieving continuous success. Leveraging the strong industrial production capabilities of their enterprises, they have worked closely with various domestic research institutions, bringing together their respective strengths to establish technology R&D companies with a mixed ownership structure. These companies enable self-driven research and development, innovation, and technical support, while each focuses on exploring the synthetic applications of specialty chemicals in order to accelerate the advancement of new chemical materials. In the coming years, it is expected that 2 to 3 technical evaluations of new material products will be completed each year.
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