6533b833fe1ef96bd129b617

RESEARCH PRODUCT

NMR Study of Kraft Pulp Mill Waste and Natural Humic Substances

Jaakko PaasivirtaPekka MannilaLiisa VirkkiJuha Knuutinen

subject

Proton nmr spectroscopychemistry.chemical_compoundchemistryWaste managementKraft processPulp bleachingLigninHigh fieldPulp and paper industryBenzeneHumus

description

High field proton NMR spectroscopy in DMSO-d6 solution is applied for structural analysis of main high molecular fractions of natural humus and waste lignin from kraft pulp mill. The spectra are similar in great part. Main differences appear in p-disubstituted benzene proton and -CH2 -CO-proton signals which are absent in spectrum of waste lignin obviously due to chlorination. A new observation of 51 Hz 1:1:1 triplet in both spectra is discussed.

yearjournalcountryeditionlanguage
1988-01-01
https://doi.org/10.1007/978-94-009-2989-0_44