Dj. Wang et al., AGGREGATION OF ORGANIC-PHASE OF SAPONIFIED NAPHTHENIC ACID-EXTRACTIONSYSTEM AND ITS APPLICATION IN PREPARATION OF ULTRAFINE PARTICLES, Separation science and technology, 32(14), 1997, pp. 2393-2400
The aggregation states of the extracted organic phase in a saponified
naphthenic acid extraction system were studied with FT-IR. TEM, and SA
XS methods. Ultrafine particles of lanthanum hydroxide were prepared i
n the water core of a water-in-oil microemulsion formed by a saponifie
d extractant and the extracted complex thereof.