The gelation mechanism of chromium(III)

Conference · Sun May 01 00:00:00 EDT 1988 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6919892

Shu, P

Chromium(III) is commonly used crosslinker for preparing profile control gels with polymers having carboxylate and amide functionalities. Cr(III) is applied in many forms. For example, it can be used in the form of simple chromic salts of chloride and sulfate, or as complexed Cr(III) used in leather tanning, or as in-situ generated Cr(III) from the redox reaction of dichromate and bisulfite or thiourea. The gelation rate, and gel quality, doped on which form of Cr(III) is used. The author has found that the Cr olates, produced by hydrolysis of Cr(III) ions, are the reactive crosslinking species. The different gelation rates are due to the different degrees of olation. Furthermore, by controlling the degree of hydrolysis Cr(III) derived from various sources mentioned above can exhibit the same gelation rate.

• Research Organization: Mobil Research and Development Corp., Central Research Lab., P.O. Box 1025, Princeton, NJ (US)
• OSTI ID: 6919892
• Report Number(s): CONF-880659-
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 33:1; Conference: ACS symposium on advances in oil field chemistry, Toronto, Canada, 5 Jun 1988
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHROMIUM IONS
HYDROLYSIS
HYDROPHYLIC POLYMERS
TECHNOLOGY ASSESSMENT
CHEMICAL PROPERTIES
CROSS-LINKING
ENHANCED RECOVERY
MOLECULAR STRUCTURE
OIL WELLS
CHARGED PARTICLES
CHEMICAL REACTIONS
COLLOIDS
DECOMPOSITION
DISPERSIONS
GELS
IONS
LYSIS
POLYMERIZATION
POLYMERS
RECOVERY
SOLVOLYSIS
WELLS
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties