... into four categories: separation, conversion, finishing, and supporting processes. Separation processes make use of the differences in physical properties of crude oil components to remove inorganic impurities present in crude oil (e.g., desalting) or to separate groups of hydrocarbon compounds in crude oil...

... of the Arrhenius model. The separation of processes allows for analysis of each single process by classical methods. Although the model is mathematically supported, verification was done by comparing the results with the FTIR spectra obtained from the gases evolved along the experiment. The FTIR analysis...

...°C/min, the two overlapping events are separated, whereas at 200°C/min, the curing does not occur in the temperature range studied. The glass transition temperature can be measured without affecting the degree of cure, or the exotherm can be shifted to separate it from the glass transition...

... geometries based on the dependence of the elastic compliance with ligament size. fracture elastic plastic unifying load separation J. R. Donoso 1 and J. D. Landes 2 A Unifying Principle for Evaluating Fracture Toughness in the Elastic and Plastic Regimes with Planar Fracture Specimens REFERENCE...

... Processing of solid waste involves quantification of the performance of separation devices. The concept of efficiency is difficult to define. The literature frequently makes use of recovery, but that can be very misleading, since purity is left unaccounted for. Ideally, one should like...

... for the Federal Highway Administration, and from actual field and contractual experience of the authors. geotextile drainage erosion separation reinforcement survivability Gregory N. Richardson^ and David C. Wyant^ Geotextiles Construction Criteria REFERENCE: Richardson, G. N. and Wyant, D. C...

... The production of solute enriched (or depleted) regions has been observed in Fe 3 Al, Cu 5 Zn 8 , and Ni 5 Zn 21 subject to neutron irradiation. The formation of those regions is due to the separation of the alloy components in the path of the atomic collision cascade, at the thermal stage...

... A number of classical methods for the determination of beryllium are described in the literature. Gravimetric methods in which beryllium is weighed as the oxide or the pyrophosphate are employed for relatively pure materials, but careful separation of interfering elements is required. A useful...

... The authors' company developed a new solvent extraction process for zirconium and hafnium separation, and started production of zirconium sponge by this new process in September 1979. The process utilizes selective extraction of zirconium oxysulfate using high-molecular alkyl amine, and has...

... included Coulter Counting, core testing, millipore tests, gravimetric, turbidity, and residual chlorine. water water injection petroleum industry filtration filters injection wells analysis testing particles water analysis particle size distribution separation oil fields seawater /. B...

... rotors turbines inclusions life (durability) separation hold time linkup topography oxide spikes L. D. Kramer ~ Fractographic Analysis of Low Cycle Fatigue Specimens from a Failed Steam Turbine Rotor REFERENCE: Kramer, L. D., "Fractographic Analysis of Low Cycle Fatigue Specimen=from a Falled...

... knowledge of environmental processes improves. water pollution tests water quality chemistry ionization hydrolysis photolysis microbial degradation separation sorption evaluative models pesticides G. L. Baughman} and R. R. Lassiter^ Prediction of Environmental Pollutant Concentration...

... Specific anodic dissolution procedures are detailed for the quantitative separation of carbides, topologically close-packed (TCP) phases, and γ ′ from high temperature nickel-base superalloys. Reagents are suggested for the isolation of phases from mixed anodic deposits through selective...

... contaminants centrifuges separation F. H. Hilts' Purification of Fuel Oils by Centrifugal Force REFERENCE: Hilts, F. H., "Purification of Fuel OUs by Centrifugal Force," Manual on Requirements, Handling, and Quality Control of Gas Turbine Fuel, ASTM STP531, American Society for Testing and Materials, 1973...

... boundary embrittlement is discussed in terms of true surface energy and plastic strain energy criteria. spectroscopy Auger electrons grain boundaries fracture surfaces embrittlement separation sputtering alloy steels iron tin nickel antimony phosphorus chromium arsenic carbon...

... electron spectroscopic analysis of the fracture surfaces of several steels that are distinguished by a ductile-brittle transition. spectroscopy Auger electrons electron microscopy embrittlement separation fracturing sputtering austenitizing isothermal treatment grain boundaries alloy steels...

.... The authors describe use of a potentiostat for selective solution of complex austenitic 15Cr-25Ni steels containing additions of other metals. Use of the threshold centrifuge to separate residues by weight and size for X-ray diffraction analysis is discussed. An example of identification of spinels...

... A chemical process was developed for treating inclusions electrolytically separated from silicon or aluminum deoxidized steels, so that stable oxides were isolated for analysis. The electrolysis, a Klinger and Koch type modified by substituting ammonium salts for the sodium salts...

... procedures were used. isolation separation oxides steels bromine methyl acetate inclusions spectrochemical analysis R. M. Rayhech} and L. C. Pasztor^ Isolation of Oxide Inclusions from Carbon Steels Using Bromine-Methyl Acetate KEY WORDS: isolation, separation, oxides, steels, bromine, methyl...