Global Patent Index - EP 1044161 A4

EP 1044161 A4 20020710 - SOLID PARTICLE MANUFACTURE

Title (en)

SOLID PARTICLE MANUFACTURE

Title (de)

FESTSTOFFTEILCHENHERTSELLUNG

Title (fr)

FABRICATION DE PARTICULES SOLIDES

Publication

EP 1044161 A4 20020710 (EN)

Application

EP 98948071 A 19980914

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 2/04; B01J 8/00; B01J 20/06; B01J 20/30; B01J 23/06; B01J 35/02; B01J 37/00; C01B 13/14

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 also 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