Abstract: A reactive composition comprising between 60% and 98% by weight of sodium bicarbonate, between 1% and 40% by weight of sodium carbonate and between 0.02% and 2.0% by weight of ammonia, expressed in the form of ammonium ions NH4+, and comprising from 0.01 to 5% by weight of a compound selected from the group consisting of hydrocarbons, fatty alcohols, fatty acids, and fatty acid salts.

Abstract: A process for manufacturing an aqueous sodium chloride solution and the use of such solution for the manufacturing of crude sodium bicarbonate from SOLVAY ammonia process or for the manufacturing of soda ash, comprising the steps of: a) dispersing a first solid material comprising sodium chloride, sodium carbonate, and sodium sulfate, and a second solid material comprising calcium chloride in an aqueous liquid to produce an aqueous medium; b) subjecting the aqueous medium to clarification to produce a clarified aqueous medium; and c) recovering the clarified aqueous medium as aqueous sodium chloride solution; wherein a weight L/S ratio between the weight of the aqueous liquid used to produce the aqueous medium and the total weight of the first solid material and the second solid material is in the range of from 0.7 to 3.5.

Abstract: Process for the production of reactive composition particles comprising at least 60% by weight of sodium carbonate and having a BET specific surface of at least 4 m2/g, according to which particles based on sodium bicarbonate and/or sodium sesquicarbonate having a median particle size D50 of less than 35 ?m are brought into contact with a stream of hot gases having a temperature of at least 100° C. in order to convert the sodium bicarbonate into sodium carbonate by calcination, the stream of hot gases comprising calcined particles subsequently being subjected to a separation stage in order to obtain, on the one hand, the reactive composition particles and, on the other hand, a separated stream of hot gases comprising CO2 and steam, the separated stream of hot gases being at least partly recycled upstream of the separation stage.

Abstract: Reactive composition comprising between 60% and 98% by weight of sodium bicarbonate, between 1% and 40% by weight of sodium carbonate and between 0.02% and 2.0% by weight of ammonia, expressed in the form of ammonium ions NH4+, characterized in that the composition comprises less than 1.0% by weight of water.

Abstract: A reactive composition comprising between 60% and 98% by weight of sodium bicarbonate, between 1% and 40% by weight of sodium carbonate and between 0.02% and 2.0% by weight of ammonia, expressed in the form of ammonium ions NH4+, and comprising from 0.01 to 5% by weight of a compound selected from the group consisting of hydrocarbons, fatty alcohols, fatty acids, and fatty acid salts.

Abstract: A device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in a side wall of this pipe, wherein at least one section (4) of the side wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of the outlet orifice (3), has a concave shape such that this section (5) of the edge of such outlet orifice (3) is positioned inside the pipe so that, when the device is in service, the flow direction of a fluid exiting such outlet orifice (3) and travelling along such deformed concave wall section (4) of the edge of this outlet orifice (3) is controlled by the shape of such section (5) of the edge.

Abstract: Process for preparing detergent composition particles comprising sodium carbonate or bicarbonate particles loaded by incorporation of at least one detergent component, comprising contacting at least one detergent component in liquid state with reactive particles comprising at least 60% in weight sodium carbonate or bicarbonate, the contacting resulting in at least partial incorporation, said reactive particles being obtained by a process comprising: (a) adding at least one alkali metal carbonate comprising sodium carbonate to an aqueous solution to form an aqueous composition; wherein the aqueous composition comprises at least one polycarboxylic acid and/or salts thereof, in an amount of at least 200 ppm based on the weight of the aqueous composition; and (b) separating sodium bicarbonate from the aqueous composition, to obtain sodium bicarbonate particles and an aqueous mother liquor; and (c) optionally calcining at a temperature of at least 80° C.

Abstract: A device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in a side wall of this pipe, wherein at least one section (4) of the side wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of the outlet orifice (3), has a concave shape such that this section (5) of the edge of such outlet orifice (3) is positioned inside the pipe so that, when the device is in service, the flow direction of a fluid exiting such outlet orifice (3) and travelling along such deformed concave wall section (4) of the edge of this outlet orifice (3) is controlled by the shape of such section (5) of the edge.

Abstract: Device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in the side wall of this pipe, characterized in that at least one section (4) of the wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of this orifice, has a shape such that this section of the edge of this orifice is positioned inside the pipe so that, when the device is in service, the flow direction of the fluid exiting this orifice and travelling along said wall section is controlled by the shape of the latter section.

Abstract: Process for milling a substance selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, and trona, in which the substance is milled with a cleaning agent in a mill for the purpose of obtaining a powder with a mean diameter of less than 100 ?m and of inhibiting the formation of incrustations in the mill. In a process for scrubbing a flue gas contaminated by a volatile acid compound, the powder is injected in the flue gas.

Abstract: Process for milling a substance selected from sodium carbonate, sodium bicarbonate and sodium sesquicarbonate or trona, in which a cleaning agent is introduced into a mill for the purpose of obtaining a powder with a mean diameter of less than 100 ?m and of inhibiting the formation of incrustations in the mill.

Abstract: Device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in the side wall of this pipe, characterized in that at least one section (4) of the wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of this orifice, has a shape such that this section of the edge of this orifice is positioned inside the pipe so that, when the device is in service, the flow direction of the fluid exiting this orifice and travelling along said wall section is controlled by the shape of the latter section.

Abstract: Process for milling a substance selected from sodium carbonate, sodium bicarbonate and sodium sesquicarbonate or trona, in which a cleaning agent is introduced into a mill for the purpose of obtaining a powder with a mean diameter of less than 100 ?m and of inhibiting the formation of incrustations in the mill.