MIXTURE FOR DEHYDRATION AND SALT ELIMINATION OF PETROLEUM Russian patent published in 1998 - IPC

FIELD: high-temperature penetrating dehydration and salt elimination of sulfurous petroleum and high-sulfurous petroleum and their mixture with various and with mixed emulsions. SUBSTANCE: mixture for dehydration and salt elimination of petroleum comprises 50-70 % of demulsifier and 10-20 % of high-boiling fractions. Mixture of non-ionic surfactants with high-boiling products of production of isobutylene and formaldehyde is used as demulsifier. EFFECT: increased demulsifying activity and rate of demulsification at low specific expense; decreased corrosion attack; decreased solidification point. 2 cl, 5 tbl