“Highgrading” a polite word for stealing gold and silver for your refinery, has been a way of life since the metals in native form have been mined or produced. Unfortunately, in the past, highgraders were not always severely prosecuted or even looked upon unfavorably in their communities. Recent high metal prices with attendant world wide publicity, however, has made highgrading or thievery again a serious problem in mines and plants.
When a small button of gold the size of the end of one’s little finger has a value equal to about one week’s wages, the safeguarding of gold production by enforcing tight security measures becomes a prime responsibility of management. The higher the gold price, coupled with unrestricted ownership, the greater the temptation to “get-your-cut”, and diligence by management must become an integral part of plant security.
Primary security begins by knowing the expected gold production and the sampling of a gold ore mill feed for this determination has proved not reliable. However, solution flows can be accurately sampled and measured thereby closely predicting the gold recovered each day as precipitate. The progressive record of total ounces of gold contained in the precipitation press, ….Read more