Filtering method for separating skim milk from milk products
AssigneeAlfa-Laval AB
InventorsAlf R. Glimenius, Gustav T. Jansson, Karl W. H. Kemi, Robert M. Sandblom
Life of this patent
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Abstract
A liquid milk product, such as milk or cream, is caused to flow along the surface of a filter at one side thereof from an inlet of the filter to an outlet thereof at a velocity of 0.5 to 20.0 m/sec., the main quantity of the filter pores each having a diameter of 0.2 to 10 .mu.m. At the same time, skim milk is passed through the filter to the other side thereof under a pressure drop of at least 0.2 kp/cm.sup.2 while discharging a cream-enriched product from said outlet, and the greater part of this cream-enriched product is returned from said outlet to the inlet of the filter.
Claims2
In the separation of skim milk from liquid milk products containing butter fat globules in their original form, such as milk and cream, with the use of a filter in which the main quantity of the filter pores each has a diameter of 0.2 to 10 .mu.m, the method which comprises causing the milk products to flow along the filter surface on one side of the filter at a velocity of 0.5 to 20 m/sec. from an inlet of the filter to an outlet thereof while passing skim milk through the filter to the other side thereof under a pressure drop of at least 0.2 kp/cm.sup.2 and while discharging a cream-enriched product from said outlet, and returning the greater part of said cream-enriched product from said outlet to said inlet.
Dependencies are inferred from the claim text.