| 摘要 |
A waste cooking oil (I) is converted to a soap o detergent, by contacting (I) with a compsn. comprising (a) at least one of an alkali metal carbonate (10% wt. or more) or an alkali metal silicate (5% wt. or more), (b) at least 5 wt.% of alkali metal-organic acid salt, (c) at least 5 wt.% of a nonionic surfactant, (d) 1-20 wt.% of alkali metal hydroxide, and (e) 1-10 wt.% water. Water is then added and heating is effected for sufficient time to form a soap or dtergent compsn.
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