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Patent Agency Ranking
公开(公告)号：US11446621B2
公开(公告)日：2022-09-20
申请号：US16345474
申请日：2017-10-27
Applicant: CALIX LTD
Inventor： Mark Sceats , Philip Hodgson , Adam Vincent , Simon Thomsen , Matthew Gill , Daniel Rennie
Abstract: A method and system for producing nano-active powder materials. The method can be used with a reactor system comprising stages in which input particles flow under gravity progressively through stages of the reactor. A powder injector first stage in which ground input precursor powder is injected into the reactor. An externally heated preheater stage may be in the reactor, in which the precursor powder is heated to a temperature of calcination reaction. An externally heated calciner stage in the reactor, in which primary precursor volatile constituents can be rapidly removed calcination reactions as a high purity gas stream to produce the desired nano-active product. A post-processing reactor stage in which there is a change of the gas stream composition to produce the desired hot powder product by virtue of the nano-activity of the first powder material. A powder ejector stage in which the hot powder product is ejected from the reactor.
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公开(公告)号：US20210392879A1
公开(公告)日：2021-12-23
申请号：US17285020
申请日：2019-10-03
Applicant: CALIX LTD
Inventor： Mark Sceats , Phil Hodgson , Adam Vincent , Robert Van Merkestein
Abstract: The invention discloses a metal and semi-metal oxide powder that, when applied to an environment, inhibits the growth of colonies of microorganisms, wherein the powder includes particles comprising a particle size distribution between 0.1 to 100 microns, which are formulated as a strongly bonded, porous, composite of nano-scale grains of materials wherein the grains have a surface area of 75 to 300 m2/g and which have less than about 10−4% of free radical species by weight, and wherein the powder is adapted to release reactive oxygen species (ROS) burst when the particles come into contact with a microorganism.
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公开(公告)号：US20200317549A1
公开(公告)日：2020-10-08
申请号：US16908361
申请日：2020-06-22
Applicant: Calix Ltd
Inventor： Mark Sceats , Adam Vincent
Abstract: A method of manufacture of high-solids hydroxide slurries from caustic calcined carbonate powder is described, whereby the properties of the slurry are its low resistance to shear thinning to facilitate transport, a high stability for transport and storage, ease of reconstitution after long periods of storage, and, as required, a high concentration of chemically reactive species at the particle surface. The method achieves these specifications by mixing caustic calcined carbonate or hydroxide powder with water in an insulated reactor vessel, and agitating the slurry sufficiently such that the hydration reaction causes the water to spontaneously boil, such that the remaining hydration proceeds spontaneously under the fixed conditions of boiling through the water loss. The mixing process is preferably carried out by a shear pump. A viscosity modifier, such as acetic acid, is used to thin the slurry to enable the mixing system to maintain uniform mixing. The reaction is terminated when the boiling has spontaneously ceased and the temperature has spontaneously dropped to a set point though the reactor heat losses, where the processing time is sufficiently long that the slurry meets the desired specifications.
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公开(公告)号：US20190275485A1
公开(公告)日：2019-09-12
申请号：US16345474
申请日：2017-10-27
Applicant: CALIX LTD
Inventor： Mark Sceats , Philip Hodgson , Adam Vincent , Simon Thomsen , Matthew Gill , Daniel Rennie
Abstract: A method and system for producing nano-active powder materials. The method can be used with a reactor system comprising stages in which input particles flow under gravity progressively through stages of the reactor. A powder injector first stage in which ground input precursor powder is injected into the reactor. An externally heated preheater stage may be in the reactor, in which the precursor powder is heated to a temperature of calcination reaction. An externally heated calciner stage in the reactor, in which primary precursor volatile constituents can be rapidly removed calcination reactions as a high purity gas stream to produce the desired nano-active product. A post-processing reactor stage in which there is a change of the gas stream composition to produce the desired hot powder product by virtue of the nano-activity of the first powder material. A powder ejector stage in which the hot powder product is ejected from the reactor.
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公开(公告)号：US20190177194A1
公开(公告)日：2019-06-13
申请号：US16282094
申请日：2019-02-21
Applicant: Calix Ltd
Inventor： Mark Sceats , Adam Vincent
CPC classification number: C02F1/68 , B01J13/0008 , B01J19/1881 , B01J2219/00121 , B01J2219/00168 , B01J2219/00186 , B01J2219/00189 , C01B13/14 , C01F5/16 , C02F1/5236 , C02F1/66 , C02F2101/20 , C02F2103/005 , C02F2303/02 , C02F2303/04 , C04B2/04
Abstract: A method of manufacture of high-solids hydroxide slurries from caustic calcined carbonate powder is described, whereby the properties of the slurry are its low resistance to shear thinning to facilitate transport, a high stability for transport and storage, ease of reconstitution after long periods of storage, and, as required, a high concentration of chemically reactive species at the particle surface. The method achieves these specifications by mixing caustic calcined carbonate or hydroxide powder with water in an insulated reactor vessel, and agitating the slurry sufficiently such that the hydration reaction causes the water to spontaneously boil, such that the remaining hydration proceeds spontaneously under the fixed conditions of boiling through the water loss. The mixing process is preferably carried out by a shear pump. A viscosity modifier, such as acetic acid, is used to thin the slurry to enable the mixing system to maintain uniform mixing. The reaction is terminated when the boiling has spontaneously ceased and the temperature has spontaneously dropped to a set point though the reactor heat losses, where the processing time is sufficiently long that the slurry meets the desired specifications.
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