公开(公告)号：US20230150880A1

公开(公告)日：2023-05-18

申请号：US17920474

申请日：2021-04-23

Applicant: Vecor IP Holdings Limited

Inventor： Erik Severin ,  John Vincent Adap Misa ,  Erwin N. Fernandez ,  Sandor Koszo ,  Bo Wei Ma

IPC: C04B33/135 ,  C04B38/00

CPC classification number: C04B33/1352 ,  C04B38/0074 ,  C04B38/0054 ,  C04B38/0064 ,  C04B2235/9607 ,  C04B2111/28

Abstract: A porous refractory article including greater than 90 wt % coal combustion fly ash. The coal combustion fly ash is in the form of an interconnected particulate lattice structure, and wherein greater than 50% by volume of the coal combustion fly ash particles within the particulate lattice structure have a particle size of greater than 150 μm. The article has: (a) an apparent porosity of from 30% to 50%, (b) a porosity such that the maximum pore size is less than 500 μm; (c) a cold crushing strength of at least 4.0 MPa; and (d) a thermal conductivity of less than 1.5 W/(m·K).

公开(公告)号：US12031044B2

公开(公告)日：2024-07-09

申请号：US18020772

申请日：2021-08-13

Applicant: VECOR IP HOLDINGS LIMITED

Inventor： Erik Severin ,  Erwin N. Fernandez ,  John Vincent Adap Misa

IPC: C09C3/00 ,  B03B9/04 ,  B03C1/00 ,  B03C1/28 ,  B03C1/30 ,  B09B3/35 ,  B09B3/40 ,  B09B3/70 ,  C08K11/00 ,  C09C1/00 ,  C09C3/04 ,  C09D7/40 ,  C09D7/61 ,  B09B101/30

CPC classification number: C09C3/006 ,  B03B9/04 ,  B03C1/002 ,  B03C1/28 ,  B03C1/30 ,  B09B3/35 ,  B09B3/40 ,  B09B3/70 ,  C08K11/005 ,  C09C1/0009 ,  C09C3/003 ,  C09C3/041 ,  C09C3/043 ,  C09D7/61 ,  C09D7/69 ,  B03C2201/18 ,  B03C2201/20 ,  B09B2101/30 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2006/80 ,  C08K2201/005

Abstract: A process for preparing whitened fly ash includes the steps of: (a) subjecting fly ash to a size classification step to obtain size classified fly ash having a particle size such that at least 90 wt % has a particle size of from 44 μm to 250 μm; (b) optionally, contacting the size classified fly ash from step (a) with water to form a slurry, wherein the slurry has a solid content of less than 40 wt %; (c) subjecting the slurry obtained in step (b) to an exhaustive magnetic separation step to form magnetically treated fly ash, wherein the exhaustive magnetic separation step includes a first magnetic extraction step and a second magnetic extraction step, wherein the second magnetic extraction step is carried out at a higher magnetic field strength than the first magnetic extraction step; and (d) subjecting the magnetically treated fly ash obtained in step (c) to milling to form whitened fly ash.

公开(公告)号：US20230287220A1

公开(公告)日：2023-09-14

申请号：US18020772

申请日：2021-08-13

Applicant: VECOR IP HOLDINGS LIMITED

Inventor： Erik Severin ,  Erwin N. Fernandez ,  John Vincent Adap Misa

IPC: C09C3/00 ,  C09C3/04 ,  C09C1/00 ,  C08K11/00 ,  C09D7/61 ,  C09D7/40 ,  B03B9/04 ,  B03C1/00 ,  B03C1/28 ,  B03C1/30 ,  B09B3/35 ,  B09B3/70 ,  B09B3/40

CPC classification number: C09C3/006 ,  C09C3/041 ,  C09C3/003 ,  C09C3/043 ,  C09C1/0009 ,  C08K11/005 ,  C09D7/61 ,  C09D7/69 ,  B03B9/04 ,  B03C1/002 ,  B03C1/28 ,  B03C1/30 ,  B09B3/35 ,  B09B3/70 ,  B09B3/40 ,  C01P2006/80 ,  C01P2004/61 ,  C01P2004/52 ,  C08K2201/005 ,  B03C2201/18 ,  B03C2201/20 ,  B09B2101/30

Abstract: A process for preparing whitened fly ash includes the steps of: (a) subjecting fly ash to a size classification step to obtain size classified fly ash having a particle size such that at least 90 wt % has a particle size of from 44 μm to 250 μm; (b) optionally, contacting the size classified fly ash from step (a) with water to form a slurry, wherein the slurry has a solid content of less than 40 wt %; (c) subjecting the slurry obtained in step (b) to an exhaustive magnetic separation step to form magnetically treated fly ash, wherein the exhaustive magnetic separation step includes a first magnetic extraction step and a second magnetic extraction step, wherein the second magnetic extraction step is carried out at a higher magnetic field strength than the first magnetic extraction step; and (d) subjecting the magnetically treated fly ash obtained in step (c) to milling to form whitened fly ash.