Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The invention concerns a process for purification of calcium carbonate-comprising minerals comprising at least one flotation step, characterized in that this step implements at least one quaternary imidazoline methosulfate compound as collector agent.

Abstract: The invention relates to a method for manufacturing dispersed mineral products by grinding the mineral raw material, sizing the same in a flow classifier, sorting the same in dispersion in air, and climinating the dispersion air. Also disclosed are devices and installations for carrying out said method. In prior art, mineral raw materials cannot be purified or are purified very inefficiently such that only very pure and high-quality starting raw materials, which are available in limited quantifies only, can be used for manufacturing high-quality dispersed mineral products, especially fillers. The aim of the invention is therefore to create a method for manufacturing dispersed mineral products, particularly fillers, in a dry process as well as devices for carrying out said method.

Abstract: The invention relates to a method for manufacturing dispersed mineral products by grinding the mineral raw material, sizing the same in a flow classifier, sorting the same in dispersion in air, and climinating the dispersion air. Also disclosed are devices and installations for carrying out said method. In prior art, mineral raw materials cannot be purified or are purified very inefficiently such that only very pure and high-quality starting raw materials, which are available in limited quantifies only, can be used for manufacturing high-quality dispersed mineral products, especially fillers. The aim of the invention is therefore to create a method for manufacturing dispersed mineral products, particularly fillers, in a dry process as well as devices for carrying out said method.

Abstract: The invention relates to a method for manufacturing dispersed mineral products by grinding the mineral raw material, sizing the same in a flow classifier, sorting the same in dispersion in air, and eliminating the dispersion air. Also disclosed are devices and installations for carrying out said method.

Abstract: The present invention relates to a method for separating mineral impurities from calcium carbonate-containing rocks by comminuting the calcium carbonate-containing rocks to a particle size in the range of from 1 mm to 250 mm, separating the calcium carbonate particles by means of a dual energy X-ray transmission sorting device.

Abstract: The invention concerns a process for purification of calcium carbonate-comprising minerals comprising at least one flotation step, characterised in that this step implements at least one quaternary imidazoline methosulfate compound as collector agent.

Abstract: The invention relates to a method for manufacturing dispersed mineral products by grinding the mineral raw material, sizing the same in a flow classifier, sorting the same in dispersion in air, and eliminating the dispersion air. Also disclosed are devices and installations for carrying out said method.