Quartz sand whitening, what to do? Is it OK to use a fluorescent brightener?

Quartz sand is widely used in glass, casting, ceramics, refractories, metallurgy, construction, chemical, plastics, rubber, abrasives and other industries, the raw ore of quartz sand quartz stone is mined from the mountain, it itself has a large amount of soil, therefore, the production of quartz sand requires a cleaning process. The general cleaning process consists of high-pressure water gun cleaning and pickling cloth. After the cleaning process is completed, the drying equipment is used to make high-quality quartz sand.

So the question is, how to whiten quartz sand? Is whitening with a fluorescent brightener feasible?

First of all, quartz sand can be whitened with fluorescent brighteners. Because in the quartz sand processing process, there is a pickling process. Dissolve a small amount of water-based brightener in the water in the pickling process.

The purpose of the pickling process is to remove iron, aluminum and other metal impurities on the surface of quartz sand, and the fluorescent brightener can be attached to the surface of quartz sand during the pickling process, so as to achieve whitening.

Finally, which fluorescent brightener can be used to achieve quartz sand whitening?

It is highly recommended to use RQT-C-2 fluorescent brightener to achieve quartz sand whitening, this whitening agent has been widely used in many domestic quartz sand manufacturers, RQT-C-2 is a high-purity water-based whitening agent, widely used in the washing industry, can effectively achieve quartz sand whitening.

Yes, you can find Hony Chemical to produce a brightener for your product, which is highly targeted, effective and dosage.

A fluorescent brightener, or white dye, is a complex organic compound. Its characteristic is that it can excite the incident light to produce fluorescence, so that the dyed substance obtains a sparkling effect similar to glowstone, so that the substance seen by the naked eye is very white, and the effect of whitening is achieved.

Brighteners are mainly used in textiles, papermaking, plastics, coatings, detergents, printing inks, waxes, packaging materials, etc. Brighteners are only optical brightening and complementing colors, and are not a substitute for chemical bleaching. Therefore, the colored matter is not bleached and directly treated with a brightener, which cannot fundamentally obtain the whitening effect, and should be paid attention to when using.

Generally, whitening agents are divided into two categories, 1. Water-soluble whitening agents, which can be used for whitening of paper, coatings, washing powder, and cotton fabrics.

2. Water-insoluble whitening agent. It can be used for whitening of chemical fibers and plastics.

To use, pour directly and mix with the raw liquid. For example, our commonly used laundry detergent has added fluorescent brighteners.

First of all, according to your use, choose the appropriate type of fluorescent brightener; Then determine the amount of fluorescent brightener; Finally, add a fluorescent brightener in the correct way.

1.It is best to read the instruction manual, and in general, mix well with warm water and brightener.

2.Choose a suitable brightener and do not add it in use.

3.Then soak what you need evenly.

After reading the answers of two enthusiastic netizens on the first and second floors, the first floor understands the processing technology of quartz sand and mentions the first step of whitening quartz sand: pickling. On the second floor, it is said that titanium dioxide is used to whiten, because during the processing of quartz sand, it is pickled and washed with water, and titanium dioxide is insoluble in water.

So, the process simply doesn't work.

After two processes of pickling and washing, the processed quartz sand is not white, what can be done?

It is recommended to add a small amount of non-fluorescent brightener RQT-C-3 during the washing process, because RQT-C-3 is a water-soluble whitening agent, and it is colorless, tasteless, non-toxic and harmless when soluble in water, and the whitening factor is attached to the surface of quartz sand, so as to realize the whitening of quartz sand.

The two important indicators of quartz sand are whiteness and purity, the higher the purity, the higher the whiteness, and the higher the sales.

Why is quartz sand not white? It is mainly caused by the symbiosis or association of quartz with other minerals under the action of long-term crustal movement and natural weathering and erosion, etc., and there are various impurities on the surface or inside. Our common impurities are yellow, red, black, green, etc., which are mainly composed of iron oxide, alumina, etc.

There are generally two ways to whiten quartz sand: physical method and chemical method. The physical methods are mechanical scrubbing, desliming, magnetic separation and color sorting, etc.; The chemical method is pickling, and the formula of pickling is mainly divided into organic acids and inorganic acids, which are more friendly to production and the environment in the current environmental protection environment.

Guangzhou Quartz Chemical, organic acid formula, safe, whitening and effective.

Fluorescent brightener can optically achieve the effect of brightening and complementing color, fluorescent brightener is generally used a lot on the white substrate, the mechanism of action is to absorb invisible ultraviolet light, superimposed with the yellow light of the substrate, to form visible blue and white light, so that the naked eye looks like the substrate is whitened.

Therefore, the fluorescent brightener does not change the color of the substrate, but only deceives the human eye and makes the substrate look whiter.