Abstract: A pelletizing process, having two distinct serial stages. In the first stage, crude (or green) pellets of a given ore, or a mixture of ores (such as iron ore, manganese ore and other minerals), are produced, while in the second stage, a Device for Improvement of Crude Pellets, is used. The Device includes a slightly elastic and smooth surface, with reduced attrition rate, that may be striated, and that, encircled in itself, forms a cylindrical geometric hollow figure supported by a metallic structure, also cylindrical, with the set forming a finishing drum. The Device rotates with an inner and continuous charge of ore pellets, and can rearrange the structure of such pellets, improving their physical quality: compressive strength, sphericity and surface finishing, and assimilate fines generated during previous processes. This device allows application of diverse materials to the pellets to add required extra properties per specificities of subsequent industrial processes.

Abstract: A process for the inhibition of particulate emission during friction of heat-treated iron ore pellets includes the following steps: a) removal of heat-treated iron ore pellets at a temperature of 200° C.; and b) spraying of an alcohol by-product on pellets. The use of an alcohol by-product as an inhibitor of particulate emission is further described, with the alcohol by-product being sprayed on heat-treated iron ore pellets, which can partially or completely replace water during the handling, stacking, loading, and unloading of materials such as pellets, granules, fines, and other products from iron ore and other minerals. This process significantly reduces the emission of particulates in the an operational area.

Abstract: A pelletizing process, having two distinct serial stages. In the first stage, crude (or green) pellets of a given ore, or a mixture of ores (such as iron ore, manganese ore and other minerals), are produced, while in the second stage, a Device for Improvement of Crude Pellets, is used. The Device includes a slightly elastic and smooth surface, with reduced attrition rate, that may be striated, and that, encircled in itself, forms a cylindrical geometric hollow figure supported by a metallic structure, also cylindrical, with the set forming a finishing drum. The Device rotates with an inner and continuous charge of ore pellets, and can rearrange the structure of such pellets, improving their physical quality: compressive strength, sphericity and surface finishing, and assimilate fines generated during previous processes. This device allows application of diverse materials to the pellets to add required extra properties per specificities of subsequent industrial processes.

Abstract: “LIQUID OR PULP AERATION DEVICE” that projects liquid or pulp (P) through a spreading nozzle on a chain curtain (C) and captures air bubbles from the liquid or pulp (P) while the fluid outflows through the curtain links (C) by gravity forming films by virtue of an interaction of the surface strain and wettability between the three surfaces in question. As far as the outflow is concerned, these films end up interacting between themselves capturing the remaining air between them, thus forming profuse bubbles, resulting in the formation of liquid or foaming pulp (P) by virtue of the chain discharge (C).

Abstract: A process for the inhibition of particulate emission during friction of heat-treated iron ore pellets includes the following steps: a) removal of heat-treated iron ore pellets at a temperature of 200° C.; and b) spraying of an alcohol by-product on pellets. The use of an alcohol by-product as an inhibitor of particulate emission is further described, with the alcohol by-product being sprayed on heat-treated iron ore pellets, which can partially or completely replace water during the handling, stacking, loading, and unloading of materials such as pellets, granules, fines, and other products from iron ore and other minerals. This process significantly reduces the emission of particulates in an operational area.

Abstract: “LIQUID OR PULP AERATION DEVICE” that projects liquid or pulp (P) through a spreading nozzle on a chain curtain (C) and captures air bubbles from the liquid or pulp (P) while the fluid outflows through the curtain links (C) by gravity forming films by virtue of an interaction of the surface strain and wettability between the three surfaces in question. As far as the outflow is concerned, these films end up interacting between themselves capturing the remaining air between them, thus forming profuse bubbles, resulting in the formation of liquid or foaming pulp (P) by virtue of the chain discharge (C).