US 8,517,595 B2 · Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus

Abstract

An apparatus and method for mixing by producing shear and/or cavitation, and components for the apparatus are disclosed. In one embodiment, the apparatus includes a mixing and/or cavitation chamber with an element such as an orifice component that is located adjacent the entrance of the cavitation chamber. The apparatus may further include a blade, such as a knife-like blade, disposed inside the mixing and/or cavitation chamber opposite the orifice component. In one version of such an embodiment, at least some of the portions of the orifice component surrounding the orifice and/or the blade are made of a material or materials that have a Vickers hardness of greater than or equal to about 20 GPa. A process for mixing by producing shear and/or cavitation in a fluid is also contemplated herein.

Claims27

Dependent claims

An apparatus for mixing by producing shear and/or cavitation, said apparatus comprising:

a mixing chamber, said mixing chamber comprising an entrance, at least one inlet, and an outlet;
an element with an orifice therein, said element being located adjacent the entrance of said mixing chamber, wherein said element comprises portions surrounding said orifice, and at least some of said portions surrounding said orifice have a hardness of greater than that of cemented tungsten carbide;
and
a blade for use in said apparatus for mixing by producing shear and/or cavitation, said blade having a tapered leading edge, wherein the leading edge of said blade is provided with a Vickers hardness of greater than or equal to about 20 GPa;
wherein the apparatus can be operated continuously for greater than about 30 minutes at a pressure greater than about 1,000 psi.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/147,629Filed 27 Jun 2008 · us provisional application

Priority

28 Jun 2007

Published

US 2009/0003123 A11 Jan 2009

Granted

27 Aug 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

B01F 25/45
Static mixers: mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
A61K 31/60
Medicinal preparations containing organic active ingredients: salicylic acid; Derivatives thereof
A61K 33/245
Heavy metals; Compounds thereof: bismuth; Compounds thereof
B01F 23/238
By introducing gases into liquid media, e.g. for producing aerated liquids: using vibrations, electrical or magnetic energy, radiations

Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus

Life of this patent

Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus

Life of this patent

Abstract

Claims27