How to prepare polyaluminum chloride (PAC G)?

In order to overcome the drawbacks, the fresh aluminum hydroxide gels were proposed to prepare the polyaluminum chloride (PAC G) in this study. The optimal preparation condition of PAC G was obtained by optimizing the preparation conditions including temperature, time and acid concentration.

Can aluminum hydroxide gels be used to prepare PAC?

An alternative preparation method of PAC was presented in this paper, using fresh aluminum hydroxide gels as the aluminum source. The procedure without the application of extreme conditions in terms of temperature and pressure had the benefit of saving energy.

Can PAC be prepared from aluminum chloride solution?

PAC can be prepared from aluminum chloride solution with the titration of various basification agents such as calcium oxide [16, 21], sodium hydroxide [, , ] and sodium aluminate .

How are polyacrylamide/polyanionic cellulose/Zr-Cp composite hydrogels prepared?

In this paper, a series of polyacrylamide/polyanionic cellulose/Zr–CP (PAM/PAC/Zr–CP) composite hydrogels were prepared via acrylamide polymerization in aqueous solutions of PAC and disodium terephthalate (Na 2 BDC), followed by posttreatment in 0.1 M ZrOCl 2 solution.

Do fresh aluminum hydroxide gels increase the production of Middle polymeric aluminum?

It is speculated that fresh aluminum hydroxide gels increase the generation of middle polymeric aluminum. When the basicity value is higher than 2.5, the pH increases sharply for the production of aluminum hydroxide precipitate.

Does PAC G2 have more middle polymeric aluminum?

In this study, the value of kb2 at basicity values of 2.0 is two orders of magnitude smaller than it in previous research ( Feng et al., 2007 ), which confirms that PAC G2.0 possesses more middle polymeric aluminum.