EP 1044161 A4 20020710 - SOLID PARTICLE MANUFACTURE
Title (en)
SOLID PARTICLE MANUFACTURE
Title (de)
FESTSTOFFTEILCHENHERTSELLUNG
Title (fr)
FABRICATION DE PARTICULES SOLIDES
Publication
Application
Priority
- US 9818169 W 19980914
- US 94835897 A 19971010
Abstract (en)
[origin: WO9919251A1] A method for making solid particles containing a mixture of solid crystalline metal oxide and/or salt compounds comprising the steps of: admixing particulate metal compounds to form a dry solids blend of at least two different crystalline solids; comminuting coarse, dry blended particulate solids, preferably in a micronizer mill by impelling the solids blend with high pressure dry inert gas against a hard plate surface, thereby producing finely-divided crystalline solids; recovering a comminuted solids blend having an average particle size of about 1-5 microns; forming an aqueous slurry of the comminuted solids blend, preferably having a weight ratio of free water to solids less than 2:1; drying the aqueous slurry to form agglomerated particles having an average size range greater than about 20 microns; and recovering dry agglomerated particles having enhanced attrition resistance and particle size uniformity. This manufacturing method is particularly useful in making multi-component contact solids.
IPC 1-7
C01B 7/00; B01J 8/00; C01B 13/14; B01J 2/04; B01J 37/00; B01J 20/30; B01J 20/06; B01J 23/06; B01J 35/02
IPC 8 full level
B01J 2/00 (2006.01); B01J 20/06 (2006.01); B01J 20/30 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01)
CPC (source: EP)
B01J 2/00 (2013.01); B01J 20/06 (2013.01); B01J 20/30 (2013.01); B01J 37/0036 (2013.01); B01J 37/0072 (2013.01); B01J 37/0236 (2013.01); B01J 37/04 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9919251A1
Designated contracting state (EPC)
BE CH DE DK ES FI FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9919251 A1 19990422; AU 9472098 A 19990503; EP 1044161 A1 20001018; EP 1044161 A4 20020710
DOCDB simple family (application)
US 9818169 W 19980914; AU 9472098 A 19980914; EP 98948071 A 19980914