| 摘要 |
The invention is concerned with the preparation of dispersions of alkali metals for example in mineral oil which may be used in particular for promoting interesterification reactions but in particular is concerned with such processes in which the dispersion is made in situ in glycerides undergoing interesterification, the alkali metal being extruded directly into the disperse liquid maintained above the melting point of the metal which is then distributed in molten form throughout the liquid. Preferably the metal is maintained in solid form near its entry into the liquid to form a seal preventing the ingress of the liquid to the supply or alkali metal and is extruded in a continuous interesterification process at a rate maintaining a limited excess of alkali metal in the reaction over the catalyst poisons present.
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