A system and method for processing a sulfuric acid waste output for the preparation of aluminum sulfate comprises providing a sulfuric acid waste output at a manufacturing facility and feeding the output into an onsite system of preparing aluminum sulfate at the manufacturing facility. The sulfuric acid waste output may be fed into an onsite system for preparing aluminum sulfate either directly after its production as a byproduct output or after onsite storage of the output. By combining a water solution with the sulfuric acid waste output prior to adding an alumina-containing compound to the combined solution to form aluminum sulfate, the sulfuric acid waste output is safely converted into a useful output without the need for transport offsite.

A system and method for processing a sulfuric acid waste output for the preparation of aluminum sulfate comprises providing a sulfuric acid waste output at a manufacturing facility and feeding the output into an onsite system of preparing aluminum sulfate at the manufacturing facility. The sulfuric acid waste output may be fed into an onsite system for preparing aluminum sulfate either directly after its production as a byproduct output or after onsite storage of the output. By combining a water solution with the sulfuric acid waste output prior to adding an alumina-containing compound to the combined solution to form aluminum sulfate, the sulfuric acid waste output is safely converted into a useful output without the need for transport offsite.

A method of processing a non-virgin sulfuric acid solution for the preparation of aluminum sulfate comprises the steps of combining a sulfuric acid solution having less than 90% sulfuric acid with water to form a mixed solution of no less than about 10% sulfuric acid. An alumina-containing compound such as aluminum hydroxide or aluminum bauxite is then added, the combination forming a pH of 2.0 or less. Once a specific gravity of less than about 1.36 is reached, the aluminum sulfate cools and settles overnight before filtering and/or storing.

A method of processing a non-virgin sulfuric acid solution for the preparation of aluminum sulfate comprises the steps of combining a sulfuric acid solution having less than 90% sulfuric acid with water to form a mixed solution of no less than about 10% sulfuric acid. An alumina-containing compound such as aluminum hydroxide or aluminum bauxite is then added, the combination forming a pH of 2.0 or less. Once a specific gravity of less than about 1.36 is reached, the aluminum sulfate cools and settles overnight before filtering and/or storing.

A device for producing granules that include ammonium sulfate may include a mixing device, an atomizing device and a fluidized bed. The mixing device may be utilized to produce a composition comprising ammonium sulfate and aluminum sulfate. The atomizing device may be disposed downstream of the mixing device and may be utilized to atomize the composition produced in the mixing device. The fluidized bed may also be disposed downstream of the mixing device. The fluidized bed may be utilized for producing the granules. Further, with respect to a process for producing granules comprising ammonium sulfate, a step of granulating a composition comprising ammonium sulfate and aluminum sulfate may involve providing ammonium sulfate-containing nuclei, fluidizing the ammonium sulfate-containing nuclei, and atomizing the composition onto the nuclei.

A method of processing a non-virgin sulfuric acid solution for the preparation of aluminum sulfate comprises the steps of combining a sulfuric acid solution having less than 90% sulfuric acid with water to form a mixed solution of no less than about 10% sulfuric acid. An alumina-containing compound such as aluminum hydroxide or aluminum bauxite is then added, the combination forming a pH of 2.0 or less. Once a specific gravity of less than about 1.36 is reached, the aluminum sulfate cools and settles overnight before filtering and/or storing.

A method of processing a non-virgin sulfuric acid solution for the preparation of aluminum sulfate comprises the steps of combining a sulfuric acid solution having less than 90% sulfuric acid with water to form a mixed solution of no less than about 10% sulfuric acid. An alumina-containing compound such as aluminum hydroxide or aluminum bauxite is then added, the combination forming a pH of 2.0 or less. Once a specific gravity of less than about 1.36 is reached, the aluminum sulfate cools and settles overnight before filtering and/or storing.

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.

The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other compounds from melter slag derived from an iron-making process.