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Inventor: Anttila; Juha
Address: Oulu, FI
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7097738 |
Process for producing pulp |
August 29, 2006 |
| The invention relates to a process for producing pulp from a fibre-based raw material using, as the cooking reagent, a solvent mixture which is based on organic acids and also contains furfural. The method is applicable to herbaceous plants, in particular. |
| 6955743 |
Method for producing furfural, acetic acid and formic acid from spent pulp-cooking liquor |
October 18, 2005 |
| The invention relates to a process for recovering and producing chemicals in a pulp production process where organic chemicals, such as formic acid and acetic acid, are used as cooking chemicals. The process of the invention is based on regeneration of cooking acids and formation of |
| 6923888 |
Process for recovering organic acids from bleaching liquors |
August 2, 2005 |
| The invention relates to a process for treating bleaching liquors from pulping processes based on organic acids. The process is characterized in that inorganic acid, such as nitric acid, phosphoric acid and/or sulphuric acid, is added into a bleaching liquor obtained from the bleaching o |
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