摘要:
A corrosion inhibiting composition for aqueous brine water containing dissolved oxygen therein is prepared by the reaction of a carboxylic acid containing from 1 to 48 carbon atoms with a polyamine having the structure H2N(-R-NH)xH where R is an alkylene group containing from 2 to 6 carbon atoms and x is a small whole number greater than 1.
摘要:
PHOSPHATE MIXED ESTERS OF HYDROXY AMINES CONTAINING LESS THAN EIGHT CARBON ATOMS IN HYDROCARBON GROUPS ATTACHED TO THE AMINO NITROGEN AND HYDROXY HYDROCARBONS CONTAINING AT LEAST SIX CARBON ATOMS IN A HYDROCARBON GROUP THEREOF ARE PREPARED AND USED AS SCALE INHIBITORS.
摘要:
Phosphated surface active hydroxy amines obtained by reacting polyphosphoric acid and/or phosphorus pentoxide with surface active hydroxyamines, e.g., C8 to C18 amines, with or without one or more hydroxy hydrocarbons, with or without neutralization, are used as scale inhibitors in brines, especially in oil wells, where calcium and barium salts are present.
摘要:
Phosphated oxypropylated amines obtained by reacting polyphosphoric acid or phosphorus pentoxide or mixtures thereof with oxypropylated amines, with or without neutralization, are used as scale inhibitors for calcium, barium and magnesium salts in waters.
摘要:
Phosphated hydroxy amines obtained by reacting polyphosphoric acid or phosphorus pentoxide with hydroxyamines, e.g., diethanolamine or triethanolamine, with or without neutralization, are used as scale inhibitors in brines, especially in oil wells, where calcium and barium salts are present.
摘要:
PHOSPHATED SURFACE ACTIVE HYDROXY AMINES OBTAINED BY REACTING POLYPHOSPHORIC ACID AND/OR PHOSPHOURS PENTOXIDE WITH SURFACE ACTIVE HYDROXYAMINES, E.G., C8 TO C 18 AMINES, WITH OR WITHOUT ONE OR MORE HYDROXY HYDROCARBONS, WITH OR WITHOUT NEUTRALIZATION, ARE USED AS SCALE INHIBITORS IN BRINES, ESPECIALLY IN OIL WELLS, WHERE CALCIUM AND BARIUM SALTS ARE PRESENT.