C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 15/00 (2006.01) B09C 1/08 (2006.01) C05F 7/00 (2006.01) C05F 11/00 (2006.01) C09K 17/32 (2006.01)
Patent
CA 2175561
A process for treating wood, particularly wood wastes (such as sawdust and the like), and/or paper, particularly waste paper (such as newsprint), and/or other types of polysaccharides (matter composed essentially of cellulose and lignin), preferably available as "wastes", with concentrated sulfuric acid (93 to 98.5 % H2SO4), or with concentrated phosphoric acid (75 to 85 % H3PO4), or various mixtures of these acids in their concentrated forms. The product of the process can be used for treating agricultural soils or as a landfill.
Procédé de traitement de bois, en particulier de déchets de bois (tels que sciure et analogue) et/ou de papier, en particulier de papiers usés (tels que des journaux) et/ou d'autres types de polysaccharides (matière composée essentiellement de cellulose et de lignine), de préférence disponibles sous forme de "déchets", avec de l'acide sulfurique concentré (93 à 98,5 % de H¿2?SO¿4?) ou avec de l'acide phosphorique concentré (75 à 85 % de H¿3?PO¿4?), ou avec différents mélanges de ces acides dans leur forme concentrée. Le produit résultant dudit procédé peut être utilisé pour traiter des sols agricoles ou peut être mis en décharge.
Mccarthy Tetrault Llp
Soil & Water Management Inc.
LandOfFree
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