4-Nonylphenol → HCID 14122791, compound

Participants

Reaction Conditions

Reaction Steps

To a 1,000 ml autoclave equipped with an ethylene oxide inlet tube, 220 g (0.998 mole) of nonylphenol having a branched nonyl group and an ortho/para ratio of 1/9, and 0.55 g of 40% aqueous sodium hydroxide solution (5.5 mmoles of sodium hydroxide) were charged. The reaction system was substituted with nitrogen and thereafter heated to 120° C. Successively the reaction system was evacuated to 50 mmHg and dehydrated for an hour. After dehydration, the system was returned to atmospheric pressure with nitrogen and heated to 150° C. While maintaining the same temperature, 220 g (4.99 moles) of ethylene oxide were charged to the reaction system over 5 hours under the pressure of 0.2 to 0.4 MPa (gauge). After finishing ethylene oxide charge, the reaction mixture was kept at the same temperature for an hour. After cooling, the reaction mixture was neutralized with 0.0.35 g (5.8 mmoles) of acetic acid to obtain 440 g of nonylphenol ethylene oxide adduct. The adduct obtained had an ethylene oxide addition mole numbers of 5.0 for one mole of nonylphenol.

Provenance & Evidence