Preparation of aldehyde-polyamine-hydroxyaromatic compound condensates and hydrocarbon fractions containing the same

Claim 1

AN IMPROVED HYDROCARBON FRACTION SELECTED FROM THE GROUP CONSISTING OF A MINERAL OIL AND A DISTILLATE FUEL OIL, CONTAINING A MINOR PROPORTION, FROM ABOUT 0.0005 TO ABOUT 10 PERCENT BY WEIGHT OF THE OIL, OF A NITROGEN-CONTAINING CONDENSATION PRODUCT OF A (1) ALDEHYDE, (2) A HYDROXYAROMATIC COMPOUND AND (3) A POLYAMINE IN WHICH EACH AMINO GROUP HAS AT LEAST ONE HYDROGEN ATOM, SAID PRODUCT BEING OBTAINED BY: (A) REACTING THE HYDROXYAROMATIC COMPOUND (1) WITH THE ALDEHYDE (2) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250*C., IN THE PRESENCE OF A BASIC CATALYST, (B) ADDING A MINERAL ACID TO THE REACTION PRODUCT OBTAINED IN (A) IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY NEUTRALIZE SAID REACTION PRODUCT, AND (C) REACTING THE PRODUCT OBTAINED IN (B) WITH THE POLYMINE (3) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250*C,. WHEREUPON THE SAID CONDENSATION PRODUCT IS FORMED, THE PROPORTIONS OF THE REACTANTS BEING ONE MOLAR PROPORTION OF ALDEHYDE, ABOUT ONE MOLAR PROPORTION OF HYDROXYAROMATIC COMPOUND AND FROM ABOUT 0.05 TO ABOUT 0.2 MOLAR PROPORTION OF POLYAMINE.

Claim 3

THE METHOD OF PREPARING A NITROGEN-CONTAINING CONDENSATION PRODUCT OF (1) AN ALDEHYDE, (2) A HYDROXYAROMATIC COMPOUND AND (3) A POLYAMINE IN WHICH EACH AMINO GROUP HAS AT LEAST ONE HYDROGEN ATOM, WHICH COMPRISES: (A) REACTING THE HYDROXYAROMATIC COMPOUND (1) WITH THE ALDEHYDE (2) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250*C., IN THE PRESENCE OF A BASIC CATALYST, (B) ADDING A MINERAL ACID TO THE REACTION PRODUCT OBTAINED IN (A) IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY NEUTRALIZE SAID REACTION PRODUCT, AND (C) REACTING THE PRODUCT OBTAINED IN (B) WITH THE POLYAMINE (3) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250* C., WHEREUPON THE SAID CONDENSATION PRODUCT IS FORMED, THE PROPORTIONS OF THE REACTANTS BEING ONE MOLAR PROPORTION OF ALDEHYDE, ABOUT ONE MOLAR PROPORTION OF HYDROXYAROMATIC COMPOUND AND FROM ABOUT 0.05 TO ABOUT 0.2 MOLAR PROPORTION OF POLYAMINE.

Claim 4

THE METHOD OF PREPARING A NITROGEN-CONTAINING CONDENSATION PRODUCT OF (1) AN ALDEHYDE, (2) A HYDROXYAROMATIC COMPOUND AND (3) A POLYAMINE IN WHICH EACH AMINO GROUP HAS AT LEAST ONE HYDROGEN ATOM, WHICH COMPRISES: (A) REACTING THE HYDROXYAROMATIC COMPOUND (1) WITH THE ALDEHYDE (2) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250*C., IN THE PRESENCE OF A BASIC CATALYST, (B) ADDING A MINERAL ACID TO THE REACTION PRODUCT OBTAINED IN (A) IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY NEUTRALIZE SAID REACTION PRODUCT, AND (C) REACTING THE PRODUCT OBTAINED IN (B) WITH THE POLYAMINE (3) AT A TEMPERATURE BETWEEN ABOUT 150*C. AND ABOUT 250* C., WHEREUPON THE SAID CONDENSATION PRODUCT IS FORMED, THE PROPORTIONS OF THE REACTANTS BEING ONE MOLAR PROPORTION OF ALDEHYDE, ABOUT ONE MOLAR PROPORTION OF HYDROXYAROMATIC COMPOUND AND FROM ABOUT 0.05 TO ABOUT 0.2 MOLAR PROPORTION OF POLYAMINE.