Described herein is a method of adding one or more boronic acid functional compounds to a mineral ore to result in a treated mineral ore. Where the mineral ore is a bauxite ore, and the ore is subsequently processed according to the Bayer process to obtain alumina, adding a boronic acid functional compound to the bauxite ore or a Bayer product followed by processing the treated bauxite ore or treated Bayer product using one or more processes associated with the Bayer process results in an increased yield of alumina product, increased alumina content (purity) in the alumina product obtained, or both when compared to the same bauxite ore or Bayer product subjected to the same process(es) but in the absence of a boronic acid functional compound.

A tribo-electrostatic separation process for beneficiation of bauxite minerals is disclosed. The process may include one or more steps of grinding, drying, de-agglomeration, air classification and electrostatic separation.

A tribo-electrostatic separation process for beneficiation of bauxite minerals is disclosed. The process may include one or more steps of grinding, drying, de-agglomeration, air classification and electrostatic separation.

The present disclosure relates to an inorganic, halogen-free flameproofing agent produced from modified, carbonized red mud (MKRS-HT) having, in some examples, a mineral composition of 10 to 50 weight % of iron compounds, 12 to 35 weight % of aluminum compounds, 5 to 17 weight % of silicon compounds, 2 to 10 weight % of titanium dioxide, 0.5 to 6 weight % of calcium compounds, the weight ratio of Fe (II) carbonate to the oxides of iron being at least 1. Examples of the agent can be used as a flame retardant in the high-temperature range. The disclosure further relates to an agent produced from modified, carbonized and rehydrated red mud, which can be used as a flame retardant in the low-temperature and high-temperature ranges, methods for producing same and use as flame retardants. The disclosure further relates to a flameproofed material system and methods for producing same.

The disclosure relates to an inorganic, halogen-free flameproofing agent produced from modified, recarbonized red mud (MKRS-HT). The agent may have a mineral composition of 10 to 50 weight % of iron compounds, 12 to 35 weight % of aluminum compounds, 5 to 17 weight % of silicon compounds, 2 to 10 weight % of titanium dioxide, 0.5 to 6 weight % of calcium compounds the weight ratio of Fe (II) carbonate to the oxides of iron being at least 1. The agent, according to examples, can be used as a flame retardant in the high-temperature range. The disclosure further relates to flameproofing agent produced from modified, recarbonized and rehydrated red mud, which may be a flame retardant in the low-temperature range as well as in the high-temperature range, methods for producing same and use as flame retardants, substitutes, synergists, thermal stabilizers, heat accumulators, heat insulators and/or sound insulators and/or as electromagnetic radiation shielding materials.

Compositions and methods used in the modification of crystallization of aluminum hydroxide from liquor in an aluminum hydroxide production process, such as the Bayer process. More particularly, crystal growth modifier compositions comprising a component of crude corn oil derived from a bioethanol production process and/or a component of biodiesel and methods of using such compositions to modify particle size and distribution of precipitated alumina trihydrate in a precipitation liquor crystallization process.

A method of transshipping solid particulates in an aqueous suspension of solid particulates, comprising dispersing solid particulates in an aqueous liquid in the presence of at least one mineral suspending agent to form the aqueous suspension of solid particulates. The aqueous suspension of the solid particulates is hauled via a first vehicle a distance greater than or equal to 1 km. The aqueous suspension of the solid particulates is transferred from the first vehicle to a second vehicle. The aqueous suspension of solid particulates is hauled via a second vehicle a distance greater than or equal to 1 km.

Compositions and methods used in the modification of crystallization of aluminum hydroxide from liquor in an aluminum hydroxide production process, such as the Bayer process. More particularly, crystal growth modifier compositions comprising a component of crude corn oil derived from a bioethanol production process and/or a component of biodiesel and methods of using such compositions to modify particle size and distribution of precipitated alumina trihydrate in a precipitation liquor crystallization process.

The invention provides methods and compositions for improving dewatering of Bayer Process alumina trihydrate slurry. The method comprises adding an R-Succinic Compound (such as octadecenyl succinic acid, hexadecenyl succinic acid, and/or dodecenyl succinic acid) to the slurry. The R-Succinic Compound removes water that would otherwise be trapped within the filtered slurry cake and therefore reduces the energy needed to calcine the resulting solids.

The invention provides methods and compositions for improving dewatering of Bayer Process alumina trihydrate slurry. The method comprises adding an R-Succinic Compound (such as octadecenyl succinic acid, hexadecenyl succinic acid, and/or dodecenyl succinic acid) to the slurry. The R-Succinic Compound removes water that would otherwise be trapped within the filtered slurry cake and therefore reduces the energy needed to calcine the resulting solids.