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2003•Journal of Hubei Polytechnic UniversityRequires access

Study on New Synthetic Technology of Pentaerthyritol

Zhang Zhi

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Abstract

Pentaerthyritol was prepared from formaldehyde and acetaldehyde with mixed solution of Na2CO3 and NaHCO3 as catalyst. The optimum conditions of condensation reaction were temperature (25 -30) ℃ ,reaction time 1h, mole ratio of formaldehyde to acetaldehyde 8, and mole ratio of sodium hydro-gencarbonate to acetaldehyde 1. 8. The optimun conditions of Cannizzaro reaction were temperature 65℃ , reaction time (1. 5-2) h. The yield was 83. 8%(based on acetaldehyde) with product purity of 98%.

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Pentaerthyritol was prepared from formaldehyde and acetaldehyde with mixed solution of Na2CO3 and NaHCO3 as catalyst. The optimum conditions of condensation reaction were temperature (25 -30) ℃ ,reaction time 1h, mole ratio of formaldehyde to acetaldehyde 8, and mole ratio of sodium hydro-gencarbonate to acetaldehyde 1. 8. The optimun conditions of Cannizzaro reaction were temperature 65℃ , reaction time (1. 5-2) h. The yield was 83. 8%(based on acetaldehyde) with product purity of 98%.

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Available abstract

Pentaerthyritol was prepared from formaldehyde and acetaldehyde with mixed solution of Na2CO3 and NaHCO3 as catalyst. The optimum conditions of condensation reaction were temperature (25 -30) ℃ ,reaction time 1h, mole ratio of formaldehyde to acetaldehyde 8, and mole ratio of sodium hydro-gencarbonate to acetaldehyde 1. 8. The optimun conditions of Cannizzaro reaction were temperature 65℃ , reaction time (1. 5-2) h. The yield was 83. 8%(based on acetaldehyde) with product purity of 98%.

Key concepts: Acetaldehyde, Formaldehyde, Chemistry, Yield (engineering), Condensation, Catalysis, Condensation reaction, Organic chemistry

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