𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural studies of coal extracts

✍ Scribed by Helena Wachowska; Antoni Andrzejak; Jacek Thiel

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
701 KB
Volume
64
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Variation of coal extract structure with
Variation of coal extract structure with molecular mass
✍ D.Gareth Richards; Colin E. Snape; Keith D. Bartle; Christopher Gibson; Michael πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 775 KB

Asphaltenes and benzene-insolubles, and their methylated counterparts, of high-yield supercritical gas (SCG) and hydrogen donor solvent (HDS) extracts have been separated by size exclusion chromatography (SEC) on cross-linked polystyrene microspheres so as to investigate the variation in coal extrac

Mechanism of swelling and extraction and
Mechanism of swelling and extraction and coal structure
✍ Anna Marzec; Wlodzimierz Kisielow πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 397 KB

Table.3 Number of calculated rounded values for Kaq from 496 data pairs for the five cases Kavg Case 1 Case 2 Case 3 Case 4 Case 5 <o

Study of aromatic biomarkers in brown co
Study of aromatic biomarkers in brown coal extracts
✍ IstvΓ‘n Hazai; GΓ‘bor Alexander; TamΓ‘s SzΓ©kely πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 662 KB

Gas chromatographic mass spectrometric (g.c.-ms.) analysis or aromatic hydrocarbon fractions of 10 brown coal samples has shown the predominance of pentacyclic compounds. Some tetracyclic compounds were also detected. They appeared to be diagenetically related to triterpenoids naturally occurring in