| abstract |
It proposes a process for the preparation of colorless boiler milk, in which one (A) subjecting boiler milk to ultrafiltration, thereby producing a first permeate P1 and a first retentate R1 (b) subjecting the permeate P1 to reverse osmosis, thereby producing a second permeate P2 and a second retentate R2, (c) treating the second retentate R2 with an adsorbent and thereby producing another retentate R2 *, (d) the resulting retentate R2 * is combined with the retentate R1 and the permeate P2. |