✦ LIBER ✦

97/02608 Supercritical fluid extraction of a high-ash Brazilian mineral coal

Publisher: Elsevier Science
Year: 1997
Weight: 189 KB
Volume: 38
Category: Article
ISSN: 0140-6701
DOI: 10.1016/s0140-6701(97)84491-8

No coin nor oath required. For personal study only.

✦ Synopsis

Role of carboxyl groups in the disintegration of brown coal briquettes by water sorption

📜 SIMILAR VOLUMES

97/02547 Supercritical fluid extraction

97/02547 Supercritical fluid extraction of a high-ash Brazilian coal extraction with pure ethanol and isopropanol and their aqueous solutions

📂 Article 📅 1997 🏛 Elsevier Science ⚖ 199 KB

The presence of aggregated structures in pyridine coal extracts are indicated by small angle neutron scattering studies of coal-extract solutions. However, no such aggregated structures exist in coal extracts with a carbon disulfide-N-methyl-2-pyrrolidane mixed solvent, which may indicate that. in a

97/00086 A new two-stage process for sup

97/00086 A new two-stage process for supercritical fluid extraction of coal with tetralin pretreatment

📂 Article 📅 1997 🏛 Elsevier Science ⚖ 191 KB

Effect of coal preoxidation on the development of microporosity in activated carbons P;trra. .I B. ('t ul.. C01%)0)1. lY9h. 34, (h), 7X3-787. This paper looks at the preparation of activated carbons from a \emtanthracite preoxldized in air to different degrees. The activation was carried out in stea

High-resolution gas chromatography and h

High-resolution gas chromatography and high-resolution gas chromatography/mass spectrometry study of the volatile fraction obtained from high-inertinite Brazilian coal by supercritical fluid extraction

✍ Livia Mari Assis; Fernando Mauro Lanças 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 276 KB 👁 1 views

This work presents the results of a study involving a high-inertinite coal Ž . from Amando Simoes Mine, located in Parana state Brazil . The organic matter ˜Ž . was extracted in a supercritical fluid static mode apparatus using toluene as the extraction fluid in the presence of hydrogen. The variabl