Linear Polarization Measurements at High Temperatures in Hypersaline Geothermal Brines
Author: Stephen D. Cramer
Publisher:
Published: 1978
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Stephen D. Cramer
Publisher:
Published: 1978
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1978
Total Pages: 50
ISBN-13:
DOWNLOAD EBOOKAuthor: Stephen D. Cramer
Publisher:
Published: 1978
Total Pages: 15
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1979
Total Pages: 650
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1978
Total Pages:
ISBN-13:
DOWNLOAD EBOOKThe Bureau of Mines conducted a series of in situ linear polarization measurements in high-temperature, high-pressure hypersaline geothermal brines at the Bureau of Mines Geothermal Test Facility in the Imperial Valley of California. The measurements represented an evaluation of the linear polarization technique for obtaining instantaneous corrosion rates of materials of construction in flowing hypersaline hydrothermal fluids that rapidly form scales on exposed surfaces. A special method was devised for use with the linear polarization technique that resulted in obtaining corrosion rates for 1020 carbon steel, 316 and 430 stainless steel, titanium, various nickel-based alloys, and aluminum 6061 under strong scale-forming conditions. The measurements also provided information on scale-deposition rates in various geothermal environments. Exploratory in situ potentiostatic polarization measurements were made in the flowing brines to qualitatively determine scale-deposition effects on the electrochemical measurements.
Author:
Publisher:
Published: 1978
Total Pages: 560
ISBN-13:
DOWNLOAD EBOOKAuthor: Seth C. Schaefer
Publisher:
Published: 1978
Total Pages: 428
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard G. Sandberg
Publisher:
Published: 1978
Total Pages: 500
ISBN-13:
DOWNLOAD EBOOKSphalerite concentrates prepared during processing of Missouri lead ores contain small percentages of cobalt and nickel which adversely affect zinc electrolysis. The Bureau of Mines has evaluated solvent extraction and precipitation techniques to remove and recover cobalt and nickel from zinc sulfate solution prior to zinc electrolysis. Prepared zinc sulfate solutions containing about 190 gpl of zinc and 50 ppm of both cobalt and nickel were treated using various combinations of complexing reagents, solvent, pH, concentration, time, and temperature. The following complex reagents gave the best results a-nitroso-ßnaphthol, ß-nitrosos-a-napthol, 1,2 cyclohexane dione dioxime (nioxime), di-2-pyridyl ketone oxime, and dimethglyoxime. These reagents in suitable solvents lowered the cobalt and nickel levels to
Author: Regis K. Conrad
Publisher:
Published: 1983
Total Pages: 28
ISBN-13:
DOWNLOAD EBOOKAuthor: Eddie Martin (Minerals engineer)
Publisher:
Published: 1980
Total Pages: 580
ISBN-13:
DOWNLOAD EBOOK