Research on A New Technology of Treatment Waste Stream Pentaerythritol Manufacture
Liu Fang, Zeng Qingrong, Li Jianxiu Jilin Institute of Chemical Technology, Jilin, Jilin 132022
A method is introduced to adsorb organics in the pentaerythritol second mother liquid through resin, to further separate pentaerythritol and sodium formate, thus raising the recovery of pentaerythritol and sodium formate. Sodium formate in higher purity can be gained after the organics are removed, the remaining organics are recycled into the main pentaerythritol system formic acid is improved from qualified degree to the first degree. Methanol is recycled through concentration and refination, the recovery reaches 98.02%. Annual benefit is 1780 thousand yuan(before the tax). This method has obvious economic, social and environmental benefits.