| abstract |
FIELD: chemistry. n SUBSTANCE: invention concerns method of isopropylbenzene hydroperoxide (IPBHP) concentration, applied in phenol and acetone production by isopropylbenzene method. The claimed method involves feed of oxidate for rectification into a vessel with gas phase separation in top part or into condensers of rectification columns. n EFFECT: reduced load on columns, enhanced column efficiency, reduced loss of IPBHP with distillate, power saving. n 3 cl, 2 dwg, 3 tbl, 3 ex |