Dielectric and electrophoretic properties of wax dispersions in the presence of pour depressants

Journal Article · Fri May 01 00:00:00 EDT 1987 · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

OSTI ID:5600771

Agaev, S G; Taranova, L V

It appeared to be of interest to evaluate the depressant efficiency of additives on the basis of results obtained in studying electrophoretic and dielectric properties of wax-containing systems when these additives are present. The electrical properties of dispersion of a petroleum paraffin wax (mp 56/sup 0/C) in n-heptane were investigated in the presence of the commercial pour depressants PMD D (specification TU 01-270-68) (a polymethyacrylate) and AzNII (GOST (All-Union State Standard) 8443-57) (condensation product from chlorinated wax and naphthalene), and two ester-type additives synthesized in the laboratory: TyumII 79, which is bis(diacylpentarythritol 4-nitrophthalate) and TyumII 222, which is bis(diacylpentarythritol succinate). The pour depressants TyumII 79 and TyumII 222 are products obtained by condensation of C/sub 21/-C/sub 26/ synthetic fatty acids, pentaerythritol, and a dicarboxylic acid (4-nitrophthalic acid or succinic acid), with component ratio 2.1:1:1 and 2.1:1:0.55, respectively.

• OSTI ID: 5600771
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Vol. 22:9-10; Other Information: Translated from Khimiya i Teknologiya Topliv i Masel; 22: No.10, 27-29(Oct 1986)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ALKANES
DIELECTRIC PROPERTIES
ELECTROPHORESIS
PETROLEUM PRODUCTS
ADDITIVES
POUR POINT
WAXES
CARBOXYLIC ACID ESTERS
CARRIER MOBILITY
CHARGE CARRIERS
CRYSTALLIZATION
EFFICIENCY
METHACRYLATES
NAPHTHALENE
AROMATICS
CARBOXYLIC ACID SALTS
CONDENSED AROMATICS
ELECTRICAL PROPERTIES
ESTERS
HYDROCARBONS
MOBILITY
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
023000* - Petroleum- Properties & Composition