| 摘要 |
A process for the manufacture of chemical raw materials by treating starting materials containing cellulose and/or lignin with ozone, followed by biochemical degradation processes, is simplified in that the starting materials are treated with the ozone immediately after a mechanical pre-treatment and without a prior chemical treatment. Preferably an aqueous suspension of the material is made and this is first passed via valve 7 into a first reaction vessel 1' and subsequently via valve 8 into a second reaction vessel 1'', finally leaving via valve 9, ozone from generator 2 passing first through reaction vessel 1'' and then through reaction vessel 1'. <IMAGE> |
