Solvent dewaxing waxy hydrocarbon oils using dewaxing aid

Mineral oils: processes and products – Paraffin wax; treatment or recovery – Separation of paraffin from oil

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C10G 7304

Patent

active

043158137

ABSTRACT:
In a solvent dewaxing process wherein a waxy hydrocarbon oil is mixed with a dewaxing aid and dewaxing solvent and chilled to form a slurry comprising solid particles of wax and a mixture of dewaxed oil and solvent, the improvement which comprises using a polymeric dewaxing aid comprising a condensation product of naphthalene and chlorinated wax having an average molecular weight ranging from about 20,000 to 500,000 and a molecular weight distribution exceeding the range of from about 10,000 to 1,000,000.

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