Formula for calculating the yield of magnetic separation of iron ore

Yield refers to the ratio of the actual amount produced of a certain product to its theoretical yield. Yield = Grade of feed ore * Recovery rate * Grade of concentrate / 100%

Reply to 2# lin*angdong: How to calculate the yield when knowing the grade of the ore, the grade of the concentrate, and the grade of the tailings?

This post was last edited by planetong on 2010-10-18 at 16:18. So, what the original poster is looking for is a formula for theoretical yield. The brother in reply #2 has already provided the formula; what the original poster needs is a formula for calculating theoretical recovery rate. I’ve been working on mineral processing recently. The theoretical recovery rate (%) for mineral processing is calculated as: Theoretical Recovery Rate (%) = Concentrate grade × (Ore grade – Tailings grade) / (Ore grade × (Concentrate grade – Tailings grade)) × 100%. I just looked this up in my own documents; I hope it can help the original poster! :Victory: Mineral processing yield: The percentage of the weight of the processed minerals relative to the weight of the feed material. For example, the concentrate yield = (Q / Q) × 100%, while the tailings yield = 1 – ； Q and Q represent the weights of the feed ore and the concentrate, respectively. If, during the mineral processing stage, the weights of the feed material, the concentrate, and the tailings, along with the contents of the useful components in them, are perfectly balanced, then the concentrate yield can be calculated using their grades: = (α – δ) / (β – δ) × 100% ； α, β, and δ represent the grades (%) of the feed, concentrate, and tailings, respectively. This yield, which is determined by the quality of the product, is also known as the theoretical yield.