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

IPC: B01J6/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B13/18 ,  C04B2/10 ,  C04B7/44

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.

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

IPC: C02F1/68 ,  C01B13/14 ,  C04B2/04 ,  B01J19/18 ,  B01J13/00 ,  C02F1/66 ,  C02F1/52 ,  C01F5/16

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.

公开(公告)号：US09913475B2

公开(公告)日：2018-03-13

申请号：US15106759

申请日：2014-12-10

Applicant: Calix Ltd

Inventor： Mark Sceats

IPC: A01N59/06 ,  A01N25/12 ,  B01J21/10 ,  B01J35/02 ,  B01J35/10 ,  C01F5/06 ,  C04B2/10 ,  B82Y40/00

CPC classification number: A01N59/06 ,  A01N25/12 ,  B01J21/10 ,  B01J35/026 ,  B01J35/1019 ,  B82Y40/00 ,  C01F5/06 ,  C01P2004/61 ,  C01P2006/12 ,  C04B2/102 ,  C04B2/106 ,  A01N25/04

Abstract: A process and apparatus for manufacture of oxide products for use as biocide, chemical detoxifying, and catalytic support products, from caustic calcined carbonate powder, preferably from magnesite, dolomite, or hydromagnesite, is described. These oxide particles are characterized by high surface area, high porosity and a high degree of calcination, and the method of manufacture utilizes an indirectly heated counterflow reactor. The oxides may be used as a powder, granules, or formulated into a slurry and used as a spray, emulsion, foam or fog, or the powder product may be directly applied. Also described is the formation of particles with microstructures defined by at least one nano-crystalline structure positioned on the outer surface of the particles.

公开(公告)号：US20140348727A1

公开(公告)日：2014-11-27

申请号：US14297492

申请日：2014-06-05

Applicant: CALIX LTD.

Inventor： Connor James Horley ,  Mark Geoffrey Sceats

IPC: C22B1/10

CPC classification number: C22B1/10 ,  B01J6/004 ,  B01J8/082 ,  B01J8/087 ,  B01J2208/00292 ,  B01J2208/0053 ,  C01B13/18 ,  C01F5/08 ,  C01F11/06 ,  C04B2/12 ,  F27B1/00 ,  F27B17/00 ,  F27D13/00 ,  F27D17/004 ,  Y02P40/42

Abstract: A system and method for the calcination of minerals. The system comprises a vertically disposed reactor segment configured to impart horizontal forces on particles passing through the reactor segment in a vertical direction; an injector unit for receiving granular feedstock, the injector unit being disposed at a top portion of the reactor segment, whereby granules of the feedstock move through the reactor segment in a granular flow under at least one of a group consisting of a force of steam, gravitational force and a centrifugal force; a reactor heat exchange unit thermally coupled to a wall of the reactor segment for providing heat to the flowing granules inside the reactor segment through heat transfer through the wall of the reactor segment; one or more inlets formed in the reactor segment for introducing a superheated gas into the reactor segment to create conditions of a gas-solid multiphase system; and one or more exhaust openings formed in the retort segment such that gas products are at least partially flushed from the reactor segment under the flow of the superheated gas from the inlets to the exhaust openings.

Abstract translation: 矿物煅烧的系统和方法。 该系统包括垂直设置的反应器段，构造成在水平方向上通过反应器段的颗粒上施加水平力; 用于接收颗粒原料的注射器单元，所述注射器单元设置在所述反应器段的顶部，由此所述原料的颗粒在颗粒流中在至少一个蒸汽力作用下移动通过反应器段， 重力和离心力; 热反应器热交换单元，其热耦合到所述反应器段的壁上，用于通过经由所述反应器段的壁的热传递来向所述反应器段内的流动颗粒提供热量; 在反应器段中形成一个或多个入口，用于将过热气体引入反应器段以产生气固多相系统的条件; 以及形成在蒸馏段中的一个或多个排气口，使得在过热气体从入口到排气口的流动下，气体产物至少部分地从反应器段冲洗。