Técnicas de beneficiamento do ouro e seus minérios no Brasil no final do século XVIII e início do XIX

Abstract

This work analyzes and searchs to establish some of the causes that corroborate for the fast decay of the Cycle of the Gold in Brazil in century 18th and beginning of the 19th. Search to show of that it forms the work or the coming of the German technician Wilhelm Ludwig Von Eschwege (1777-1855) or Baron Luis Guillermo de Eschwege, contributed for the few registers in the field of the mining of the gold at this time. It argues, still, as Portugal lead the mineratória industry badly; searching to point causes and, preponderant factors, concerning which, as we will demonstrate, Portugal did not have as to control; preventing its bankruptcy. In the present work, we look for to present to soon of it I capitulate I, the techniques of mining in the Brazil-Colony of century 18th until the beginning of the XIX, the limitations and solicitudes which the miners were citizens. Seen the Crown fifth was very voluble in the collection of. It I capitulate II, we argue the metallurgic techniques of the gold and its ores in the Brazil-Colony in the above-mentioned period. The contributions of names as Jose Bonifácio de Andrada e Silva, already cited W.L. Von Eschwege, as well as, the supposed introduction of the bateia and some others techniques minero-steel mills introduced for the slaves. We present some techniques of analyses chemistry-metallurgical mills of the gold and its process of certification or quilatação. We deal with the cupellation, inquartação, test of the risk, amongst others