Quartz Beneficiation Process - JXSC Mineral

The quartz ore beneficiation process is to crush the mined quartz ore. The qualified materials crushed by the crusher are evenly sent to the inside of the quartz ore ball mill through the elevator and the ore feeding equipment. The quartz ore ball mill will continue to crush and grind the materials. , the material ground by the ball mill is sent to the spiral classifier for cleaning and classification. The magnetic separator is used for preliminary separation and the flotation machine is used to separate the desired minerals from other substances. Finally, the concentrator is used to remove the minerals contained in the material. The moisture and drying equipment can dry the material, and then the quartz stone raw material required for production can be obtained.

If you want to learn more, please visit our website Chunlei.

Crushing

The jaw crusher, cone crusher, and other crushing equipment are used to form the crushing production process, and the quartz ore is crushed to a specific particle size, and the particle size of the quartz ore can reach 25mm, which is precisely the feed particle size of the next step of the quartz ore ball mill for grinding (of course crushing The particle size is better than 25mm, the more beneficial to the grinding operation).

Grinding

The crushed quartz ore is ground with a special grinding ball mill for quartz ore. After grinding, quartz ore powder within the range of 0.074 mm-0.89 mm can be obtained, which is convenient for the next step of grading and purification. In order to achieve the expected target more quickly in grinding quartz ore powder, the personnel who operate the quartz ore ball mill must strictly implement the requirements for feeding (&#;25mm).

Purification

The purification production line composed of a classifier, magnetic separator, and flotation machine follows the principle of rough separation first and then fine selection. The quartz ore powder is cleaned and classified by the classifier first, and then the magnetic separator is used for preliminary separation. Finally, the flotation machine is used further to separate the quartz material from the complex minerals.

Concentration

Concentrators and dryers can concentrate and dry the separated quartz material, and dry, high-purity quartz products can be obtained, which can be directly applied in the industrial field.

If you want to know more information, like quotation, products, solutions, etc., please contact us online.

01

Quartz Sand Processing Washing desliming method

There are a variety of mineral impurities in quartz sand, and the grades of different impurities have a close relationship with the particle size of quartz sand. For example, the grade of SiO2 decreases with the decrescence of quartz sand particle size, and the impurities such as Fe, Al grade will rise with the decrescence of quartz sand particle size, this kind of phenomenon in clay minerals quartz sand is particularly significant. Therefore, it is necessary to carry out ore washing and desliming treatment.

The commonly used quartz sand processing washing method is mainly the scrub method (rod mill scrubbing and mechanical scrubbing). In production, the rod mill scrubbing effect is more ideal than mechanical cleaning. The scrubbing concentration is kept at 50% ~ 60%, and the scrubbing time is determined according to the ore nature, which is based on initially meet the product quality requirements. And the time should not be too long to avoid too much energy consumption and equipment wear.

In addition, in the quartz sand scrubbing processing, the scouring reagent can be added to change the composition of mineral particles, enhance the scrubbing effect and improve the efficiency of impurity removal.

Application:

Used to treat the quartz sand containing a large number of clay and mud, or used to remove the film iron and adhesive impurities on surface of the quartz sand.

Quartz Sand Processing Equipment required:

High-efficiency agitator washer, hydrocyclone, rod mill, hydraulic classifier, desliming bucket

02

Quartz Sand Processing Magnetic separation method

The magnetic separation method is based on the magnetic difference between quartz sand and associated impurities minerals. Low-intensity magnetic separation is often used for the strong magnetic minerals, while high-intensity magnetic separation is mainly used for the weak magnetic minerals, and the magnetic field intensity should be more than Oe.

It should be noted that the number of magnetic separations and magnetic field intensities should be effectively controlled when using the magnetic separation method. In general, with the increase of magnetic separation times, the iron content in the ore will decrease, but most of the iron can be removed only under a certain magnetic field intensity. In addition, the effect of iron removal is also related to the size of quartz sand. Usually, the smaller the size of quartz sand, the better the effect of iron removal.

If you want to learn more, please visit our website quartz sand beneficiation equipment.

Application:

Often used to remove the weak magnetic impurities (eg. hematite, limonite, biotite) and strong magnetic minerals (eg. magnetite) contained in the quartz sand.

Quartz Sand Processing Equipment required:

Magnetic separator, High-intensity magnetic separator (eg. high gradient magnetic separator)

03

Quartz Sand Processing Flotation method

If the scrubbing, washing and desilming, magnetic separation methods cannot achieve the ideal beneficiation effect, the flotation method can be considered to remove the mica and feldspar from quartz ore.

&#; Mica removal: the cationic collector is used under the condition of pH value 3-4.

&#; Feldspar removal: In acidic conditions, fluorine flotation and fluorine-free flotation are used according to the different flotation reagents. The fluorine flotation means using the cationic collector to preferentially float feldspar under the activation of strong acid and fluorine ions. The fluorine-free flotation means to adopt the anionic collector dodecyl sulfonate and diamine cationic collector together, then the anionic collector complexes with the diamine collector adsorbed on the feldspar surface to form co-adsorption and improve the hydrophobicity of feldspar surface.

Application:

Mainly used to remove feldspar, mica, and various non-magnetic associated impurities in the quartz sand.

Quartz Sand Processing Equipment required:

Suction mechanical agitation flotation machine (SF flotation machine, BF flotation machine, JJF flotation machine), inflation mechanical agitation flotation machine (KYF flotation machine, XCF flotation machine)

04

Quartz Sand Processing Acid pickling method

The quartz isn&#;t insoluble in acid (except HF), while the acid solution can dissolve other impurities. Therefore, the acid pickling method can be used in quartz beneficiation.

The commonly used acids in quartz sand pickling include sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, etc. Dilute acid has a good effect on removing iron, aluminum, and magnesium, while the concentrated sulfuric acid and hydrofluoric acid have a good effect on removing titanium and chromium. According to the production practice, the mixed acid has a better effect on quartz sand beneficiation and purification.

Application:

Quartz sand contains iron, aluminum, magnesium, titanium, chromium, and other impurities, and the requirements on the purity of quartz sand are high.

Quartz Sand Processing Equipment required:

Leaching agitation tank

In the actual beneficiation process, the quartz sand beneficiation processing often needs to be determined comprehensively according to the ore properties, concentrator conditions, investment budget, and other factors. It is suggested to carry out the mineral processing test, then select the single or combined process through the beneficiation test report, striving for the ideal technical and economic benefits.

The company is the world’s best hammer mill crusher supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.