| 摘要 |
FIELD: petrochemical processes. ^ SUBSTANCE: styrene-containing fraction is subjected to rectification along with 0.0001-0.5 ppm of additive improving quality of styrene, said additive being tetrakis(dialkylsulfamoyl)phthalocyanine salt of group I and/or II, and/or III, and/or V. Additive is introduced in the form of solution in aromatic hydrocarbon into preliminary styrene recovery column and/or into styrene recovery column, and/or into styrene storage tank. ^ EFFECT: traduced losses of styrene during recovery, storage, and transportation. ^ 3 cl, 1 tbl, 15 ex |
