A DEMULSIFIER INTERMEDIATE. A BROWN LIQUID IN APPEARANCE. AN ACTIVE COMPONENT IN DEMULSIFIER FORMULATIONS ADDED TO CRUDE OIL TO AID THE SEPARATION OF EMULSIFIED WATER. IT CONSISTS OF AN ALKYL PHENOL-FORMALDEHYDE RESIN THAT IS FURTHER REACTED WITH ALKYLENE OXIDES TO FORM A COMPLEX MIXTURE OF HIGH MOLECULAR WEIGHT OXYALKYLATED PHENOLIC RESINS. THE REACTIONS ARE CARRIED OUT IN A MIXED AROMATIC HYDROCARBON SOLVENT (THIS PRODUCT IS NOT SOLUBLE IN WATER). THE SOLVENT MAKES UP FOR LESS THAN 50 PER CENT OF THIS PRODUCT. THIS PRODUCT IS MANUFATURED IN BATCH CHEMICAL REACTORS IN A MULTI-STAGE PROCESS. THIS PRODUCT IS USED ALONE AS DEMULSIFIER BUT IS USUALLY BLENDED WITH OTHER INTERMEDIATES TO ACHIEVE OPTIMUM EFFICIENCY. TRANSPORTED IN CONTAINERS RANGING FROM 5 GALLON TO 550 GALLON ISO TANKS.

CLASSIFICATION IS ACCORDING TO GIRS 1 AND 6. THE TERMS OF HEADING 3909 AMINO-ACIDS, PHENOLIC-RESINS AND POLYURETHANES, IN PRIMARY FORM AND SUBHEADING 390940 PHENOLIC RESINS. HSEN (2) TO HEADING 3909.