Patent · US Expired

Process for manufacturing hydrophobic adsorbents

US4544650A · kind A · utility

4Cited by

6References

6Claims

0Family size

Assignee

Institut for Energetik - Zentralstelle fur Rationelle Energieanwendung · DE

Inventors

Reiner Kinder · Leipzig, DE
Johannes Teubel · Freiberg, DE
Herbert Schuster · Grafing, DE
Christine Fanslau · Leipzig, DE

Key dates

Filing date	May 29, 1984
Grant date	Oct 1, 1985
Priority date	—
Expiry date	May 29, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B41/5001
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A composite mass with a major proportion of inorganic material and a minor proportion of organic material, preferably from industrial waste products, is activated by dehydration of its organic constituents whereupon the mass is subjected to a two-phase pyrolytic process. In a first stage, lasting for 2 to 3 hours it is heated to about 600.degree. C. with carbonization of the organic constituents; in a second stage, lasting for 1 to 2 hours, the mass is sintered or consolidated at a temperature between about 900.degree. and 1150.degree. C.

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