Ore generally referred to the roughing and cleaning, cleaning and selecting, scavenging and tail choose, these are the basic knowledge of mining operations. Now these mineral foundation knowledge summarized as follows:

The roughing, cleaning, scavenging in general, mainly refers to the flotation machine (mining flotation), magnetic separator (dry magnetic separator, wet magnetic separator) and other processing equipment.

The primary ore after selecting, part of the moisture content of gangue and surrounding rock have been selected, the product is higher than that of the grade of raw ore, called rough concentrate, the general has not yet reached the concentrate quality requirements, this process is called roughing. The crude concentrate to select to get qualified concentrate, this process is called selected assignments. Sometimes the crude concentrate after several selected can obtain the qualified concentrate, its operation is called a selection, two times, three times of cleaning.......

General roughers.tousegravity-flotation tailings is not as final tailings abandoned, often need to enter the next operation treatment, the operation called Saul chose. In order to improve metal recovery, sometimes need after many Saul chose to obtain the final tailings.

Ore through choose don't homework after treatment, to remove most of the gangue and impurities, make useful mineral enriched products called concentrate. Concentrate is the final product of the mineral processing plant, sometimes called the final concentrate, general as smelting of raw material. The final concentrate to make its main composition and impurity content can reach the national standard, can be called the qualified concentrate.

To concentrate, middlings, tailings, after each flotation concentrate and tailings outside call.

Undressed ore after sorting operation after treatment, the main ingredient in concentrate enrichment, some through the integrated treatment, minor constituents of ore or other associated metal also get recovery. So the remaining parts of the product containing useful components is very low, this part of the product called tailings, or final tailings. It should be noted that, in the tailings containing useful components still by current technical level limit but difficult to extract, but the future is likely to become the raw material for reuse. Therefore, the general will save tailings stacked in tailings.

The intermediate product in the selected don't process called middlings. Between the useful component content commonly middlings between concentrate and tailings. In the classification process, middlings generally need to return the appropriate site of operation treatment, or treatment alone.