Processing of sulfur-containing materials from flue gas desulfurization or related sources for calcium compound recovery
- Publisher
- Elsevier Science
- Year
- 2001
- Weight
- 183 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0140-6701
No coin nor oath required. For personal study only.
✦ Synopsis
By-products related to fuels NMR spectroscopy.
Structural characterization by elemental analysis, FTIR, and NMR spectroscopy on both vacuum-distilled and air-blown pitches showed that distillation of lighter fractions, reduction of atomic H/C ratio, and dehydrogenation raised their softening points. Structural analysis by NMR showed that asphaltite pitches consist of condensed aromatic rings combined with methylene bridges and heterocyclic groups and substituted with alkyl and naphthenic groups. Aspbaltite pitches, which were prepared by solvent extraction (HI-BS) and vacuum distillation (AVD3), resulted in very good and medium spinnable green fibres, respectively. Scanning electron microscope analysis was used to study the morphology of the stabilized fibres. 00100236