| Title of Invention | PULP WASHING METHOD AND PLANT |
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| Abstract | A method of improving the efficiency of the multistage washing of pulp, wherein the initial washing of a given batch of pulp is carried out using a gradually diluted, recovered filtrate fraction originating from the washing of the preceding batch of pulp as the washing liquid, prior to the final washing of the pulp batch. In the method, the recovered fraction filtrate is kept stored in such a way that the concentration gradient of dissolved substances is maintained until the fraction is used for washing the following batch of pulp. A further object of the invention is a pulp washing plant, wherein the method according to the invention is carried out in a laboratory-scale test washer and applied to industrial pulp washing plant solutions. |
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in-pct-2001-1131-kol-granted-abstract.pdf
in-pct-2001-1131-kol-granted-claims.pdf
in-pct-2001-1131-kol-granted-correspondence.pdf
in-pct-2001-1131-kol-granted-description (complete).pdf
in-pct-2001-1131-kol-granted-drawings.pdf
in-pct-2001-1131-kol-granted-form 1.pdf
in-pct-2001-1131-kol-granted-form 3.pdf
in-pct-2001-1131-kol-granted-form 5.pdf
in-pct-2001-1131-kol-granted-gpa.pdf
in-pct-2001-1131-kol-granted-letter patent.pdf
in-pct-2001-1131-kol-granted-reply to examination report.pdf
in-pct-2001-1131-kol-granted-specification.pdf
in-pct-2001-1131-kol-granted-translated copy of priority document.pdf
| Patent Number | 219082 | ||||||||
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| Indian Patent Application Number | IN/PCT/2001/1131/KOL | ||||||||
| PG Journal Number | 17/2008 | ||||||||
| Publication Date | 25-Apr-2008 | ||||||||
| Grant Date | 23-Apr-2008 | ||||||||
| Date of Filing | 30-Oct-2001 | ||||||||
| Name of Patentee | METSO CHEMICAL PULPING OY | ||||||||
| Applicant Address | P.O.BOX 34, FIN-28101 PORI | ||||||||
Inventors:
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| PCT International Classification Number | D 21 C 9/02 | ||||||||
| PCT International Application Number | PCT/FI00/00634 | ||||||||
| PCT International Filing date | 2000-07-10 | ||||||||
PCT Conventions:
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