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.
A SIMPLE TEST METHOD FOR DISTINGUISHING STRAIGHT-RUN FROM THERMAL (VISBREAKER) RESIDUES OR BITUMENS / DE FILIPPIS, Paolo; Giavarini, Carlo; Santarelli, Maria Laura; Scarsella, Marco. - In: FUEL. - ISSN 0016-2361. - 74:10(1995), pp. 1537-1539. [10.1016/0016-2361(95)00078-j]
A SIMPLE TEST METHOD FOR DISTINGUISHING STRAIGHT-RUN FROM THERMAL (VISBREAKER) RESIDUES OR BITUMENS
DE FILIPPIS, Paolo;GIAVARINI, Carlo;SANTARELLI, Maria Laura;SCARSELLA, Marco
1995
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
