In-line rotor-stator disperser and reaction process

Patent metadata

Field	Value
Publication number	US-2016288098-A1
Application number	US-201415033214-A
Country	US
Kind code	A1
Filing date	Oct 29, 2014
Priority date	Nov 1, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

The present invention is directed to a special device for fast mixing and precipitation reactions of chemical substances. In particular, the present invention presents a reactor which allows an extremely fast mixing of at least two liquid streams containing highly concentrated dissolved materials from which solid metal compound particles are formed when at least two reactant streams meet, to which optionally a further stream, advantageously containing a dispersion or suspension, may be added.

First claim

1 . Reactor device ( 1 ) for the fast reaction and precipitation of chemical substances comprising:
a housing defining an inlet zone ( 2 ); one stator disc ( 3 ) comprising one or more rings ( 5 ) of spaced away teeth ( 7 , 7 ′) with openings to the bottom, concentrically located within the inlet zone ( 2 ) and fixed to the reactor device ( 1 ); one rotor disc ( 4 ) comprising one or more rings ( 6 ) of spaced away teeth ( 8 , 8 ′) with openings to the top, configured for rotation about an axis of rotation ( 9 ) relative to the stator ( 3 ) and concentrically located within the inlet zone ( 2 ); the spaced away teeth of the stator rings ( 7 , 7 ′) and the spaced away teeth of the rotor rings ( 8 , 8 ′) being alternatingly adjacent to each other in radial direction; the stator rings ( 5 ) engaging the rotor rings ( 6 ) from the top in such a way that the openings of the spaced away teeth build the only communication of the inlet ( 10 , 10 ′) to the outlet ( 13 ), optionally starting with an interior rotor ring ( 6 ); a first inlet ( 10 ) located eccentrically at a first radial location for supply of a first reactant material to the inlet zone ( 2 ); at least one further inlet ( 10 ′) located eccentrically at a radial location, different from the radial location of the other inlet for supply of at least one further reactant material to the inlet zone ( 2 ); the materials supplied to the inlet zone ( 2 ) afterwards approaching the one or more rings of the stator and rotor ( 5 , 6 ); an outlet ( 13 ) to remove the product collected in the collector zone ( 12 ). wherein the first inlet ( 10 ) for supply of a first reactant material and the at least one further inlet ( 10 ′) for supply of a further reactant material are located such that the reactant materials hit the spaced away teeth of the interior rotor ring ( 8 ) first after being supplied through the inlets ( 10 , 10 ′).

2 . Reactor device according to claim 1 , wherein the spaced away teeth of the exterior stator ring have a distance to each other of 0.5-5 mm.

3 . Reactor device according to claim 1 , wherein the spaced away teeth of the interior rotor ring have a distance to each other of 0.5-5 mm.

4 . Reactor device according to claim 1 , wherein the spaced away teeth of the stator ring and the rotor ring have a shape selected from the group consisting of rectangular, rhombic, trapezoid and round shape.

5 . Reactor device according to claim 1 , wherein the spaced away teeth of the stator rings ( 7 , 7 ′) and the spaced away teeth of the rotor rings ( 8 , 8 ′) being alternatingly adjacent to each other in radial direction have an interstitial spacing of between 0.5-2 mm.

6 . Reactor device according to claim 1 , wherein the first inlet ( 10 ) for supply of a first reactant material and the at least one further inlet ( 10 ′) for supply of at least one further reactant material are located such that taken their eccentric location the distance between them becomes maximum.

7 . Reactor device according to claim 6 , wherein the first inlet ( 10 ) for supply of a first reactant material and the at least on further inlet ( 10 ′) for supply of at least one further reactant material are located such that the reactant materials hit the spaced away teeth of the interior rotor ring first after being supplied through the inlets.

8 . Process for fast reaction and precipitation of chemical substances, wherein at least two materials are supplied to the reactor of claim 1 through the first and at least one further inlet ( 10 , 10 ′), and the product is collected from the outlet ( 13 ) of the device.

9 . Process according to claim 8 , wherein the product produced is a metal compound particle of an anion selected from the group consisting of hydroxide, oxy-hydroxide, oxide, and mixtures thereof and of a metal cation selected from the group consisting of aluminum, zirconium, copper, iron, cobalt, nickel, manganese, barium, rare earths, and mixtures thereof.

10 . Process according to claim 8 , wherein viscos suspensions of precursors for catalyst materials are produced having a viscosity of >50 Pa×s.

Assignees

• Umicore Ag & Co Kg

Inventors

• Van Setten Barry
• Dahm Sebastian
• Jongen Liesbet

Classifications

• B01D53/9454

  characterised by a specific device · CPC title

• B01D2255/407

  Zr-Ce mixed oxides · CPC title

• B01D2255/908

  O2-storage component incorporated in the catalyst · CPC title

• B01J8/10

  moved by stirrers or by rotary drums or rotary receptacles {or endless belts} · CPC title

• B01J23/10

  of rare earths · CPC title