Spherical tungsten disulfide powder

C - Chemistry – Metallurgy – 01 – G

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C01G 41/00 (2006.01) C10M 125/22 (2006.01) C10M 171/06 (2006.01)

Patent

CA 2496506

A tungsten disulfide powder comprised of macro-spherical particles of tungsten disulfide having an average particle diameter of from about 5 to about 50 micrometers is prepared by successively treating spray-dried powders of ammonium metatungstate with heat in air and sulfidizing the resultant tungsten trioxide in a carbon disulfide-containing atmosphere at about 750 ~C. The tungsten disulfide powder may also be formed to have a bimodal particle size distribution of the macro-spherical particles and smaller, dispersed micro- to submicron-sized fine particles.

L'invention concerne une poudre de disulfure de tungstène à particules macrosphériques de diamètre moyen compris entre environ 5 et environ 50 micromètres, élaborée selon les étapes successives suivantes: traitement thermique de poudres de métatungstate d'ammonium séchées par pulvérisation dans l'air, et sulfuration du trioxyde de tungstène résultant dans une atmosphère contenant du disulfure de carbone à environ 750 ·C. On peut aussi élaborer la poudre considérée pour lui conférer une distribution bimodale de la taille des particules, en particules macrosphériques et en particules plus petites, fines et dispersées de taille micronique à submicronique.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Spherical tungsten disulfide powder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spherical tungsten disulfide powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spherical tungsten disulfide powder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1529106

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.