Patent · US Expired

Process for overcoating granular materials

US4857359A · kind A · utility

5Cited by

6References

3Claims

0Family size

Assignee

Hobeg mbH · DE

Inventors

Manfred Groher · Goldbach, DE
Werner Heit · Großenhausen, DE
Walter Schmittner · Waldaschaff, DE
Wolfgang Warzawa · Hanau, DE

Key dates

Filing date	Feb 10, 1988
Grant date	Aug 15, 1989
Priority date	—
Expiry date	Feb 10, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for overcoating granules with overcoating material in a granulator by providing the inside surface of the granulator, before introduction of the granules, with a layer of the overcoating material in a thickness of 0.1 to 1 mm, maintaining a preset entrainment height of the granules during the granulation process, and adding the overcoating material in the flowing particle bed. The deposited layers are very uniform.

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