反应详情

温度

160 °C

To a mixture of 39.2 g of methanol, 24 g of octanol and 257.6 g of process oil (PUREXX 12: Esso Petroleum) was added 74.0 g of calcium hydroxide gradually to disperse it. The mixture, after adding 230.4 g of oleic acid thereto, was stirred for 30 minutes. Carbon dioxide (20 L/hour) was blown thereinto at a temperature of 50° C. for 3.5 hours to progress reaction. The mixture was gradually heated to 160° C. to progress reaction while water and alcohols were distilled off. After the reaction was completed, the mixture was filtered to give a brown solution of an overbased calcium oleate-carbonate complex (Ca=7.1%; metal ratio=2.5) (this product is designated S-8).

1. additionto disperse it
2. waitat a temperature of 50° C. for 3.5 hours to progress
3. customreaction
4. distillationwere distilled off
5. filtrationthe mixture was filtered