| 简介 |
Disclosed is a process for resource processing purified terephthalic acid waste residue, which comprises : heating purified terephthalic acid waste residue and separating to get crude monoacid and binary acid; cutting light component out of the crude monoacid and then rectifying to get benzoic acid; feeding the crude binary acid into a reactor, adding alcohol and sulfuric acid or titanium series, aluminum series or cobalt series catalyst and reacting; decoloring with active carbon, neutralizing, washing with water and rectifying to get esters of terephthalic acid; sending the residue from rectification into an incinerator exempting fuel, and extracting cobalt, manganese and other rare metals from the residue produced by burning. The process can extract chemical industrial products of benzoic acid and esters of terephthalic acid, as well as cobalt, manganese and other rare metals, and burn the unavailable residue without any burning condition. |
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