Abrégé

The invention relates to a mixing system comprising an outer tube (2); an inner tube (3); an annular gap (1); and a first annular diaphragm (5), wherein a first fluid can flow through the inner tube (3); a second fluid can flow through the annular gap (1); the first annular diaphragm (5) closes the annular gap (1) at the end corresponding to the end of a flow of the second fluid through the annular gap (1); the first annular diaphragm (5) is mounted so as to be connected to the outer tube (2); the first annular diaphragm (5) has a plurality of openings (5a); the outer tube (2) is shorter than the inner tube (3); the outer tube (2) is equipped with a connection (4) which is fluidically connected to the annular gap (1); and a second annular diaphragm (8) closes off the annular gap (1) at the end.

Classes IPC  ?

• B01F 25/313 - Mélangeurs à injecteurs dans des conduits ou des tubes dans lesquels circule le composant principal dans lesquels des composants supplémentaires sont introduits au centre du conduit
• B01F 25/431 - Tubes de mélange droits avec des chicanes ou des obstructions qui ne provoquent pas de chute de pression importanteChicanes à cet effet
• B01F 33/81 - Combinaisons de mélangeurs similaires, p. ex. avec des dispositifs d'agitation rotatifs dans plusieurs récipients

Abrégé

A burner includes a hot gas zone and an outer zone, a primary air feed line, a secondary air feed line, and a fuel feed line. The secondary air feed line includes three concentric cylindrical tubes. The fuel feed line is arranged concentrically around the secondary air feed line. A first dead volume exists inside the burner between the secondary air feed line and the fuel feed line. The fuel feed line has a nozzle construction on the hot gas side. A second dead volume is arranged between the secondary air feed line and the fuel feed line on the outer side zone. The primary air feed line is arranged concentrically around the fuel feed line.

Classes IPC  ?

• F23L 9/06 - Passages ou ouvertures pour introduire l'air secondaire nécessaire à la combustion complète du combustible l'air étant introduit dans la couche en combustion
• F23D 14/58 - Buses caractérisés par la forme ou la disposition de l'orifice ou des orifices des buses, p. ex. en couronne
• F23K 5/00 - Alimentation en d'autres combustibles ou distribution d'autres combustibles pour les appareils à combustion

Abrégé

The invention relates to a burner, comprising a lateral hot gas region (21) and an outer region (22), a feed line for primary air (3), a feed line for secondary air (1), and a feed line for fuel (2), wherein the feed line for secondary air (1) comprises three concentric cylindrical tubes, and the feed line for fuel (2) is arranged concentrically around the feed line for secondary air (1); wherein there is a first dead volume (4) within the burner between the feed line for secondary air (1) and the feed line for fuel (2), and wherein the feed line for fuel (2) has a nozzle structure (5) on the hot gas side (21); a second dead volume (9) is located between the feed line for secondary air (1) and the feed line for fuel (2) on the side of the outer region (22); and the feed line for primary air (3) is arranged concentrically around the feed line for fuel (2).

Classes IPC  ?

• F23D 14/24 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant au moins un des fluides étant soumis à un mouvement tourbillonnant

Abrégé

The invention relates to an integrated hydrometallurgical method for processing metal-containing feedstock, which comprises the following steps: a) dissolving metal-containing feedstock in aqueous hydrochloric acid; b) separating the insoluble constituents; c) introducing dry gaseous HCl; d) filtering off the solid matter; d1) cooling the filtrate from step d) to approximately room temperature; d2) introducing dry gaseous HCl; d3) filtering the solution from step d2); d4) dissolving the solid from step d3) in water and spray-roasting at temperatures of 400 to 900°C; d5) introducing SO3 into the filtrate from step d3); d6) filtering the solution from step d5); d7) heating the filtration residue from d6) to 500-1100°C; d8) adding aqueous hydrochloric acid to the product of d7); d9) filtering off CaSO4; d10) hydrolyzing the FeCl3 obtained in the filtrate from step d9); d11) filtering off Fe2O3 and washing with water; e) heating the solid matter from step d) to 200-300°C; f) cooling the solid mixture to approximately room temperature; optionally g) separating LiCl by washing with ethanol and obtaining LiCl; h) separating NaCl and KCl and, if step g) has not been carried out, LiCl by washing with water and subsequently obtaining NaCl, KCl and LiCl; and j) heating the amorphous Al2O3 and/or the solid matter from step i) to 1200-1400°C and obtaining α-Al2O3.

Classes IPC  ?

• C22B 3/10 - Acide chlorhydrique