How to manufacture polyaluminium chloride?

Method for manufacturing polyaluminium chloride with aluminum vanadine and calcium aluminate powder CN104671269A(en) 2015-06-03 Method for producing polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production

How is polyaluminum chloride (PA) made?

Method for producing polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production CN106517288A(en)

Who makes polyaluminum chloride?

USALCO® has manufactured chemicals for over 60 years, and began full scale production of the patented process (US Patents 5,985,234; 5,997,838; 6,036,935 and Canadian Patent 2229266) for manufacturing Polyaluminum Chloride in 1996. USALCO manufactures a variety of Polyaluminum Chlorides to meet a wide range of water quality objectives.

What is polyaluminium chloride (PAC)?

According to EP 181 847, the finished product obtained is a saturated solution of polyaluminium chloride containing about 5.5-6 % by weight of aluminum at the most.; it is indicated in the patent specification that PAC containing more than about 6 % by weight of aluminum gives an unstable product that easily crystallises.

How PAC is used in pulp & paper industry?

PAC:s are also used in the pulp and paper industry. The problem to be solved by the present invention is thus to provide a process for production of a stable PAC from aluminum hydroxide, press cake and hydrogen chloride, which PAC contains more than about 6 % by weight of aluminum, and to provide such a stable PAC.

What is the abbreviation for polyaluminium chloride solution?

Below "polyaluminium chloride solution" is abbreviated "PAC". EP 181 847 discloses a process of the same general kind as that of the present invention.