The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2021
Filed:
Apr. 20, 2017
Basf SE, Ludwigshafen am Rhein, DE;
Juergen Wortmann, Ludwigshafen am Rhein, DE;
Sabine Weiguny, Ludwigshafen am Rhein, DE;
Katharina Federsel, Ludwigshafen am Rhein, DE;
Matthias Hinrichs, Ludwigshafen am Rhein, DE;
Stephan Maurer, Ludwigshafen am Rhein, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
A heat transfer or storage medium containing a nitrate salt composition including at least one alkali metal nitrate and optionally alkaline earth metal nitrate; and, at least one alkali metal nitrite and optionally alkaline earth metal nitrite in an amount of 1.1 to 15.0 mol %. The molar amount of the alkali metal nitrite and optionally alkaline earth metal nitrite for a desired temperature is calculated by Xis the mole fraction of nitrite,K(T) is the temperature-dependent equilibrium constant of the reaction nitrate ⇄nitrite+½ oxygen (NO⇄ NO+½ O),pOis the oxygen partial pressure and T is the temperature of the nitrate salt composition.