AURECON NEW ZEALAND LIMITED;FONTERRA CO-OPERATIVE GROUP LIMITED
发明人:
Styles, Anthony James,Stephenson, Paul
申请号：
NZ74532311
公开号：
NZ745323A
申请日:
2011.10.10
申请国别(地区):
NZ
年份:
2020
代理人:
摘要：
Disclosed is a method of crystallising lactose from a lactose-containing liquid in a rising film type evaporator system, comprising providing a lactose-containing liquid comprising less than 80% by weight total solids, providing an evaporator system that comprises a heat exchanger and an evaporation vessel, the heat exchanger comprising a tube or tubes that define a flowpath having an inlet and an outlet, heating the lactose-containing liquid in the heat exchanger to about 50 to about 90°C such that the lactose-containing liquid passes along the flowpath, concentrating the lactose-containing liquid in the evaporation vessel, wherein the total solids content of the concentrated lactose-containing liquid is from about 58 to about 80% by weight, and wherein the heat exchanger is a rising film or flooded tube heat exchanger. In a preferred embodiment, the method further comprises transferring the concentrated lactose-containing liquid, having a total solids content of from about 58 to about 80% by weight to a cooling crystalliser.
