RT Journal Article
SR Electronic
A1 Čarnogurská, Mária
A1 Lázár, Marián
A1 Příhoda, Miroslav
A1 Skočilasová, Blanka
A1 Kurilla, Peter
A1 Marek, Jiří
T1 High-Temperature Processing and Recovery of Cu Catalyst Promoter
JF Manufacturing Technology Journal
YR 2018
VO 18
IS 1
SP 22
OP 28
DO 10.21062/ujep/47.2018/a/1213-2489/MT/18/1/22
UL https://journalmt.com/artkey/mft-201801-0005.php
AB The following article describes the results obtained from the plasma smelting reduction of a particular type of waste - catalyst with a Cu promoter. The catalyst is used for the process of a selective reduction of nitrobenzene (C6H5NO2) to aniline (C6H5NH2). The plasma smelting occurs in a reducing atmosphere. Six samples of the exhausted catalyst with a Cu promoter were used in the smelting process. The chemical composition of the promoter exhibited a presence of a wide range of elements. Fluorspar (fluorite) and calcium oxide (quicklime) were used as the slag-agent for the given testing. Reducing agent was the powdery graphite - waste from the manufacture of the graphite semi-finished product. The results of experiments, carried out at 80 kVA in the plasma reactor, proved that this type of catalyst can be, in fact, disposed of using the plasma technology. Recyclability of the metal contained in this waste is high; Cu ranges around 88%. Moreover, the article describes the chemical analysis of the slag, fly ash and the composition of synthesis gas in all samples of the processed catalyst.