Patent · US Expired

Device for spray-drying solvent-containing compositions

US6769200B2 · kind B2 · utility

15Cited by

14References

7Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Wilfried Raehse · Goldkronach, DE
Ovidiu Dicoi · Offenbach am Main, DE
Peter Walzel · Essen, DE

Key dates

Filing date	Nov 4, 2002
Grant date	Aug 3, 2004
Priority date	—
Expiry date	Nov 4, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF26B3/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus and method for the spray drying of solvent-containing compositions. A liquid or paste-form solvent-containing composition is heated to a temperature above the boiling point of the solvent, transported under excess pressure and at a temperature above the boiling point of the solvent to a relaxation space where it is sprayed to evaporate the solvent. The relaxation space is not under excess pressure and is at a temperature that is above the boiling point of the solvent.

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