A simple test method for distinguishing straight-run from thermal (visbreaker) residues or bitumens

✍ Scribed by P. De Filippis; C. Giavarini; M.L. Santarelli; M. Scarsella

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 461 KB
• Volume: 74
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(95)00078-j

✦ Synopsis

A simple and quick test method was developed to distinguish thermally cracked materials, especially visbreaker residues and bitumens, from untracked products, such as straight-run distillation bitumens and residues. The method is based on the reactivity of thermal residues and bitumens with phosphoric acid to form high-molecular-weight products that are clearly visible as black spots in a thin film of the treated material.