Clarification of wine by crossflow filtration

Details Clarification of wine by crossflow filtration Clarification of wine by crossflow filtration

1987-01-14

1988-02-09

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210181, B01D 1300

Patent

active

047240806

ABSTRACT:
A process for the crossflow-microfiltration of wine from a storage container through a membrane filter with membranes having a nominal pore diameter of 0.1-5 m, in which the mean velocity in the membrane filter is 0.5-6 m/second, wherein before entering the membrane filter the wine is warmed to a temperature which is above a temperature threshold that produces a definite increase in filter performance but at the most to 45.degree. C. Crossflow-microfiltration is carried out without addition of filtering aids and the filtrate obtained is cooled to storage temperature. An apparatus for carrying out the process comprises a storage container, a membrane filter with a nominal pore diameter of 0.1-5 m, a feed pump and piping, a heating device being attached upstream of the membrane filter and a cooling device and filtrate container being attached downstream therefrom.

REFERENCES:
patent: 3708069 (1973-01-01), Clark
patent: 3856569 (1974-12-01), Strong
patent: 3988486 (1976-10-01), Rhein
patent: 4140806 (1979-02-01), Glimenius et al.
patent: 4498982 (1985-02-01), Skinner
patent: 4551341 (1985-11-01), Blanie et al.

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