Patent · US Expired

Process for the production of graphite molding powder

US3978177A · kind A · utility

6Cited by

3References

9Claims

0Family size

Assignee

HOBEG Hochtemperaturreaktor-Brennelement GmbH

Inventors

Hans Huschka
Werner Heit · Großenhausen, DE
Franz Herrmann
Gerhard Spener · Hanau, DE

Key dates

Filing date	Sep 25, 1974
Grant date	Aug 31, 1976
Priority date	—
Expiry date	Sep 25, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Graphite molding powders are prepared which contain phenol-formaledehyde as a binder and which are intended for use in the manufacture of graphite molded articles, especially fuel inserts, fuel elements and absorber elements for high temperature reactors by mixing a graphite powder with a phenol formaldehyde binder and subsequent heat treatment, in a given case in admixture of coated fuel, fertile or absorber particles. The invention resides in not adding to phenol-formaldehyde as such to the graphite powder but as the starting components namely phenol and formaldehyde or source of formaldehyde and heating the mixture to the resin condensation temperature.

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