2 research outputs found
Characteristics and thermal detinning of ferrous scrap from Spanish MSW compost plants
Twenty samples of ferrous scrap from different Spanish municipal solid waste (MSW) compost
plants were characterised in order to knowtheir composition and tin contents, with a viewto evaluating
their metallurgical quality as a raw material for the steel industry. Eighty five percent of the samples
had a high metallic fraction weight percentage, constituted principally by food and beverage cans and
domestic aerosols. The average tin contentwas 0.43 wt.%. The ferrous scrap samples were subjected to
fragmentation, cleaning and thermal detinning processes in order to improve their quality. The products
obtained were chemically, mineralogically, metallographically and spectroscopically characterised.
The thermal detinning process, performed at a relatively high temperature (700 鈼) and with a short
sample holding time in the furnace (10 min), yielded a very high quality ferrous scrap with a very
low tin content (<0.05 wt.%) and a low oxidation degree of the steel. The corrosion degree in these
conditions was practically negligible.The authors thank ECOACERO S.A. for providing samples and for financial support of
this study.Peer reviewe
Characteristics and thermal detinning of ferrous scrap from Spanish MSW compost plants
Twenty samples of ferrous scrap from different Spanish municipal solid waste (MSW) compost
plants were characterised in order to knowtheir composition and tin contents, with a viewto evaluating
their metallurgical quality as a raw material for the steel industry. Eighty five percent of the samples
had a high metallic fraction weight percentage, constituted principally by food and beverage cans and
domestic aerosols. The average tin contentwas 0.43 wt.%. The ferrous scrap samples were subjected to
fragmentation, cleaning and thermal detinning processes in order to improve their quality. The products
obtained were chemically, mineralogically, metallographically and spectroscopically characterised.
The thermal detinning process, performed at a relatively high temperature (700 鈼) and with a short
sample holding time in the furnace (10 min), yielded a very high quality ferrous scrap with a very
low tin content (<0.05 wt.%) and a low oxidation degree of the steel. The corrosion degree in these
conditions was practically negligible.The authors thank ECOACERO S.A. for providing samples and for financial support of
this study.Peer reviewe