Patent · US Active

Method for producing porous granules from inorganic material and the use thereof

US9172084B2 · kind B2 · utility

1Cited by

2References

22Claims

0Family size

Assignee

HERAEUS QUARZGLAS GMBH & CO. KG · DE

Inventors

Christian Neumann · Hungen, DE
Jörg Becker · Florstadt, DE
Achim Hofmann · Polling, DE

Key dates

Filing date	Mar 14, 2012
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Nov 10, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Build-up granulation and compaction granulation methods are generally known for producing granules from porous inorganic material. In order to allow a cost-efficient yet also reproducible production of porous granules having a more pronounced hierarchical pore structure, the invention relates to a method comprising the following steps: (a) supplying a feedstock flow to a reaction zone in which the feedstock is converted to material particles by means of pyrolysis or hydrolysis, (b) depositing the material particles on a deposition surface (1a) forming a soot layer (5), (c) thermally hardening the soot layer (5) to form a porous soot plate (5a), and (d) comminuting the soot plate (5a) to form porous granules (13).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.