MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202647071492 A) filed by China Petroleum & Chemical Corporation; and Sinopec Beijing Research Institute Of Chemical on June 09, 2026, for Combined Treatment Method For Mixed Alcohol Waste And Heavy Alcohol Waste.
Inventors include Shi, Qian; Guo, Liang; Luo, Shujuan; Zhu, Yuehui; Li, Yan; Tian, Jun; Shao, Huawei; Gao, Jinglin; Fan, Xiaozhe; and Chen, Guanyu.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: The present invention relates to a combined treatment method for a mixed alcohol waste and a heavy alcohol waste. The combined treatment method is characterized by comprising the following reaction steps: step 1, optionally, subjecting the mixed alcohol waste mainly comprising C1-C4 saturated monohydric alcohols to preliminary separation treatment, so as to at least partially remove water and acids contained therein, and optionally, at least partially separating a heavy component mainly comprising esters, so as to obtain a preliminary purified product of the mixed alcohol waste; step 2, in the presence of an optional catalyst, mixing the mixed alcohol waste that has optionally undergone the preliminary separation treatment, the heavy alcohol waste and an optionally added alcohol, and reacting same to obtain a product containing a glycolate and ethylene glycol; and optionally, step 3, separating a material containing the glycolate and ethylene glycol from the product obtained in step 2 and the heavy component which is optionally obtained in step 1, wherein the heavy alcohol waste comprises at least one of ethylene glycol, glycolic acid and methyl glycolate, and a polymer generated from at least one of the compounds by a polymerization reaction. The present invention also relates to a system for implementing the method according to the present invention.
Disclaimer: Curated by HT Syndication.
