Miller process

Treatment of impure gold is largely via the Miller process (30) in which chlorine is bubbled through the molten metal and converts the base metals to chlorides, which volatilise. Silver is converted to the chloride, which is molten and can be poured. The remaining gold is less pure (99.6%) than that produced by the WohlwiU process and may require additional treatment such as electrolysis. If platinum-group metals (qv) are present, the chlorine process is unsuitable. 

N. Nakajima and R. A. Miller, "Processing Ease and Rubber Carbon Black Interaction," paper presented atMCL meetings Montreal, 1987. 

Murthy, D. S. R. Prasad, P. M. Leaching of gold and silver from Miller Process dross through non-cyanide leachants. Hydrometallurgy 1996, 42, 27—33. 

Miller process -for gold [GOLD AND GOLD COMPOUNDS] (Vol 12)... 

Exobiological research offers reasons to expect that amino acids might be universal. Amino acids appear to be products of prebiotic synthesis. They are famously the products of the Miller process by which methane, ammonia, and water were subjected to electrical discharge. And amino acids are found in carbonaceous meteorites both as alpha amino acids that are standard in terran life and as the nonstandard alpha-methylamino acids found by Cronin and Pizzarello.24... 

Regenerative Oxidation. There is a group of regenerative processes in which HCl reacts with another material A to form an intermediate which then oxidizes back to compound A while releasing chlorine. The oxidation reaction usually requires the use of a catalyst or more severe conditions than the chlorination. The Grosvenor-Miller process is an example. This uses a fixed-bed reactor packed with ferric, rather than cupric, chloride. The course of reaction is... 

After many essential improvements, this technique, the Miller process, has been introduced in all big gold refineries [5.4],... 

Dry-millers process maize in two ways by stone grinding the kernels to produce hominy grits and full-fat whole meals, and by the tempering-degerming or TD process (Figure 7.3). The latter process is the one most commonly practiced by the industry and produces highly refined grits, meals, and flours with extended shelf life. 

Shekhawat D., J. E. Jackson, and D. J. Miller, Process model and economic analysis of itaconic acid production from dimethyl succinate and formaldehyde, Bioresour. Technol. 97, 342-347 (2006). 

D. Miller, D.Placko "Pre-processing of signals delivered by a new eddy current sensor for non ferromagnetic tubes testing" in IMTC 96... 

Note that the sums are restricted to the portion of the frill S matrix that describes reaction (or the specific reactive process that is of interest). It is clear from this definition that the CRP is a highly averaged property where there is no infomiation about individual quantum states, so it is of interest to develop methods that detemiine this probability directly from the Scln-ddinger equation rather than indirectly from the scattering matrix. In this section we first show how the CRP is related to the physically measurable rate constant, and then we discuss some rigorous and approximate methods for directly detennining the CRP. Much of this discussion is adapted from Miller and coworkers [44, 45]. 

Tully, J. C. Nonadiabatic Processes in Molecular Collisions. In Dynamics of Molecular Collisions, Part B (W.H. Miller, ed.). Plenum, New York (1976) Zener, C. Non-adiabatic crossing of energy levels, Proc. R. Soc. London, Ser. A 137 (1932) 696-702... 

R. E. Hiachee, R. M. Miller, and P. C. Johnson, eds.. In situ Meration Air Sparging Bioventing and Belated Kemediation Processes, BatteUe Press, Columbus, Ohio, 1995. 

The first-break roUs of a mill are cormgated rather than smooth like the reduction roUs that reduce the particles of endosperm further along in the process. The rollers are paired and rotate inward against each other and at different speeds. The clearance between rollers and the pressure as well as the speed of each separate roUer, can be adjusted. At each breaking step, the miller selects the milling surface and the cormgations the speed of and interrelation between the rollers depend on the type and condition of the wheat. 

Fine grinding and air classification make possible the production of some cake flour from hard wheat and some bread flour or high-protein fractions from soft wheat. AppHcation of the process theoretically frees the miller from dependence on different wheats, either hard or soft, that change each crop year. The problem is how to market the larger volume of low protein or starch fractions at prices adequate to justify the installation and operation of the special equipment (46). 

J. C. Miller andM. Misra, Fuel Process. Technol 6, 27 (1982). 

W. E. Hatfield and J. H. Miller, Jr., eds., High-Temperature SuperconductingMaterials, Preparations, Properties, and Processing, Marcel Dekker, Inc., New... 

Table 9-51 fflves typical values of such factors for carbon steel installations taken from the data of D. R. Woods Financial Decision Making in the Process Industiy, Prentice Hall, Englewood Cliffs, NJ, 1975, p. 184). Auxiliaries and site preparation are given as factors of the delivered-equipment cost in Table 9-51, whereas C. A. Miller [Chem. 

Miller, C.W., Power sourees for irradiation processing the linear accelerator. In Charlesby, A. (Ed.), Radiation Sources. The MacMillan Company, New York, 1964, pp. 197-219. Sehonberg, R.G., Radiation considerations for operation of a portable 6-MeV Electron Linear Accelerator. Proceedings 20th Midyear Topical Symposium, Health Physics Society, Reno, NV, February 8-12, 1987, p. 297. 

Franklin Miller Inc. Crushers, mills, shredders and mixing equipment for chemical processing, waste reduction and wastewater treatment. http //WWW. franklinmiller. com... 

On treatment by von Miller and Rohde s process, hydrocupreine is converted into dihydrocupreinotoxine (dihydrocupreicine), and this, too, can be alkylated, giving a series of homologues of dihydroquinicine. 

Rawlings, J.B., Miller, S.M. and Witkowski, W.R., 1993. Model identification and control of solution crystallization processes A review. Industrial and Engineering Chemistry Research, 32, 1275-1296. 

Rawlings, J.B., Sink, C.W. and Miller, S.M., 2001. Control of crystallization processes. In Handbook of Industrial Crystallization. Ed. A.S. Myerson, 2nd edition. Oxford Butterworth-Heinemann. 

A number of dihydroquinolines have been prepared by treating aniline derivatives with acetone or mesityl oxide in the presence of iodine. In these cases aromatization to the fully unsaturated quinoline would require the loss of methane, a process known as the Riehm quinoline synthesis. Such Skraup/Doebner-von Miller-type reactions are often low yielding due to large amounts of competing polymerization. For example, aniline 37 reacts with mesityl oxide to give dihydroquinolines 39, albeit in low yield. ... 

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