Patent · US Active

Method for manufacturing encapsulated superhard material

US9555387B2 · kind B2 · utility

0Cited by

6References

11Claims

0Family size

Assignee

Element Six Limited · IE

Inventors

Keith Gush · Mold, GB
Mark Gregory Munday · Harwell, GB
Peter Schmock · Essen, DE
Stephen Kelly · Möhlin, CH

Key dates

Filing date	Feb 15, 2011
Grant date	Jan 31, 2017
Priority date	—
Expiry date	Nov 21, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J13/043
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for the formation of pellets containing an ultra hard (superhard) core coated with an encapsulating material includes utilizing a shovel rotor in combination with a rotating pan and/or a fluidized bed apparatus in sequence. The process includes providing a source of superhard material, providing a mixture comprising a binder, a solvent or fluid medium and the intended coating or encapsulating layer, and combining the superhard material and the mixture in a shovel rotor. The rotor of the shovel rotor is rotated at a velocity such that the superhard material is encapsulated by the mixture to form pellets. The pellets are introduced into a rotating vessel or fluidized bed granulating apparatus, and the pellets are contacted with encapsulating material to form pellets of greater mass than the pellets introduced into the vessel.

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