Automated titration method for use on blended asphalts

US8236564B2 · kind B2 · utility

Assignee

• The University of Wyoming Research Corporation · US

Inventors

• Adam Pauli · Cheyenne, US
• Raymond E. Robertson · Laramie, US
• Jan F. Branthaver · Chatham, US
• John F. Schabron · Laramie, US

Key dates

• Filing date: Jun 15, 2010
• Grant date: Aug 7, 2012
• Expiry date: Jun 15, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N31/162
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for determining parameters and compatibility of a substance such as an asphalt or other petroleum substance uses titration to highly accurately determine one or more flocculation occurrences and is especially applicable to the determination or use of Heithaus parameters and optimal mixing of various asphalt stocks. In a preferred embodiment, automated titration in an oxygen gas exclusive system and further using spectrophotometric analysis (2-8) of solution turbidity is presented. A reversible titration technique enabling in-situ titration measurement of various solution concentrations is also presented.