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Synthesis of bisphenol F from polyoxymethylene dimethyl ethers
Pages: 35-39
Year: Issue:  3
Journal: China Synthetic Resin and Plastics

Keyword:  polyoxymethylene dimethyl ethersformaldehydebisphenol Fyieldselectivity;
Abstract: Polyoxymethylene dimethyl ethers(PODEn)is used as starting materials with phenol to prepare bisphenol F(BPF)instead of formaldehyde. The results show that the yield of BPF rises then falls with the increase of n at the temperature of 50,65,and 80℃.The yield of BPF reach the maximum of 88.4%,93.7%and 95.8%respectively when n is 2. On the other hand,the selectivity of BPF dcreases gradually with the increase of n. Temperature exert significant impact on yield of BPF,that is,the higher the temperature is,the more the yield of BPF is. However,temperature had little influence on selectivity of BPF. Compared with traditional process from formaldehyde solution,the selectivity is higher in the new process from PODEn. In conclusion,PODE2 is the best material to replace formaldehyde for synthesis of BPF,with which the yield of BPF is up to 95.8%when the selectivity of BPF reaches 94.7%at the temperature of 80℃.
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