Under the current technical conditions of quartz sand processing, the main quartz sand processing methods are as follows: physical/mechanical methods, such as magnetic separation, gravity separation, flotation, ultrasonic mineral processing, water washing, etc. Chemical method, namely pickling; And microbial methods.

In order to effectively reduce the impurity content in quartz sand, pickling process is usually used to purify quartz sand in industry. Pickling is based on the characteristic that it is insoluble in acid (except HF) and other impurity minerals can be dissolved in acid solution.

In order to effectively reduce the impurity content in quartz sand, pickling process is usually used to purify quartz sand in industry. Pickling is based on the characteristic that it is insoluble in acid (except HF) and other impurity minerals can be dissolved in acid solution.

1) to prepare pickling solution for quartz sand pickling.

2) Add quartz sand into the pickling solution to ensure that the acid solution completely covers the quartz sand.

3) Soak quartz sand in acidic solution for a certain time, and increase or decrease the soaking time according to the yellow skin of quartz sand. Enterprises with heating equipment can use heating equipment to reduce soaking time.

4) Recovery of acid solution and acid removal.

5) drying quartz sand, removing acid, draining water, and drying in drying equipment.

6) screening, color selection and packaging.