Extraction process of wolframite

Extraction process of wolframite

Wolframite ore is an important tungsten resource with extensive application value. However, the extraction process of wolframite has always been a difficult problem. This article will introduce the extraction process of wolframite to help readers better understand the extraction process of wolframite. 1、 The nature of wolframite is that wolframite is a kind of ore with high hardness and density, and its main components are calcium tungstate and iron tungstate. The wolframite ore is black or brownish black with metallic luster. The tungsten content of wolframite is generally 0.2%~1.0%, which is an important tungsten resource. 2、 Extraction process flow of wolframite sand The extraction process flow of wolframite sand mainly includes ore dressing, pulp preparation, flotation separation, concentration and dehydration, tungsten concentrate refining and other links. 1. Ore dressing Ore dressing is the first step of wolframite sand extraction, which aims to separate useful minerals from raw ores. The main beneficiation methods include gravity separation, magnetic separation, flotation, etc. Among them, flotation is the most commonly used mineral processing method. Its principle is to separate useful minerals from waste rocks by using the affinity difference between minerals and foam. 2. Pulp preparation Pulp preparation is the second step of wolframite extraction, and its purpose is to break the ore after beneficiation into pulp of a certain size. The main methods for preparing mineral slurry include ball milling method, grinding machine method, etc. 3. Flotation separation Flotation separation is the Committed step of wolframite sand extraction, which aims to separate the useful minerals in the pulp from the waste rock. Flotation separation mainly includes processes such as rough selection, sweeping selection, and selection. Among them, rough selection is the process of preliminarily separating useful minerals from waste rock in the slurry; Scanning is the process of further separating the minerals after rough selection; Selection is the process of purifying the scanned minerals. 4. Concentration dehydration concentration dehydration is the subsequent step of wolframite extraction, which aims to further purify the minerals obtained after flotation separation. The main methods of concentration and dehydration include heavy medium method, centrifugal precipitation method, etc. 5. Tungsten concentrate refining Tungsten concentrate refining is the last step of wolframite sand extraction, which aims to further purify the tungsten concentrate after concentration and dehydration. The main refining methods for tungsten concentrate include fire method, wet method, etc. 3、 To sum up, the extraction process of wolframite sand is a complex process, which requires several links to finally obtain pure tungsten concentrate. This paper introduces the properties of wolframite, the extraction process and the operation steps of each link, hoping to help readers.

Extraction process of wolframite