6533b85afe1ef96bd12b89d9

RESEARCH PRODUCT

EXPERIENCES OF STRUCTURE ANALYSES OF CHLOROPHENOL DIMERS AND TRIMERS FOUND IN DIFFERENT SAMPLES

J. PassivirtaM. LahtiperäT. Leskijärvi

subject

ChlorophenolWood wastechemistry.chemical_compoundWaste treatmentPreservativechemistryOpen firevisual_artvisual_art.visual_art_mediumOrganic chemistryBarkPhenolsPolychlorinated diphenyl ethers

description

ABSTRACT Chlorophenol formulations (Kymi/Kymmene Co., wood preservatives), sawmill wood waste samples and different waste treatment product samples were analyzed for oligomeric by-products of the polychlorinated phenols. Structure types for 26 phenolic dimers, 45 neutral dimers and 13 phenolic trimers were determined by GC/MS. Types of one tetrachloro and one hexachloro compound detected remained unknown. Contents of by-products in chlorophenol formulations varied greatly depending on their production method. Chemical treatment of wastes with NaClO and NaOH lowered their contents of chlorophenols and phenolic dimers, but did not change (NaOH) or increased (NaClO) the contents of neutral dimers (PCDPE, PCDD and PCDF). Open fire burning of chlorophenol formulation removed all polychlorinated diphenyl ethers (PCDPE) but the amounts of polychlorinated dioxins (PCDD) increased greatly and those of dibenzofurans (PCDF) increased slightly. High efficient burning experiments of wastes mixed with bark removed practically all PCDD:s and PCDF:s also, most completely when the amount of the pure bark mixed was high.

yearjournalcountryeditionlanguage
1982-01-01
https://doi.org/10.1016/b978-0-08-026256-7.50022-2