paper industry

In the papermaking industry, aluminum sulfate has various uses, mainly as a papermaking additive, retention and filtration aid, paper reinforcement agent, water treatment agent, etc. When used, due to the absence of iron in iron free aluminum sulfate, it will not have a negative impact on the whiteness of the paper when used in white paper production. With the development of the paper industry, the aluminum sulfate currently used in papermaking is mainly in the form of powdered iron free aluminum sulfate.