Meyer process

TRW Gravichem A modification of the TRW Meyers process (see next entry) in which the coal fraction which contains less pyrites is first removed by sedimentation in the ferric sulfate solution. 

Compared with the Meyer process, the Guthrie method allows... 

In the Meyers process, aqueous ferric sulfate or -chloride (mild but eflFective oxidizing agents) selectively oxidizes (without affecting the coal matrix) the pyritic sulfur content (J) of coal to form free sulfur and sulfate. Iron sulfate dissolves in the aqueous solution. The free sulfur may then be removed from the coal matrix by steam or vacuum vaporization or solvent extraction and the oxidizing agent may be regenerated and recycled. See Reactions below ... 

FIGURE 11.4 Plant for the oxidation of propane with oxygen (Meyer process) in Conroe (Texas). 

INDUSTRIAL EXPERIENCE OF THE PARTIAL OXIDATION OF HYDROCARBON GASES TO OXYGENATES TABLE 11.5 Product Yields in the Meyer Process [260,266] 209... 

An important and expensive problem in surface science occurs in the prevention of the attachment of marine animals such as barnacles to ship surfaces, a process known as biofouling. Baier and Meyer [159] have shown that the Zisman plot can be used to predict biofouling, thus avoiding costly field tests to find a successful coating to prevent biofouling. 

R. A. Meyers, ed.. Handbook of Petroleum Refining Processes, McGraw-HiU, New York, 1986. 

Graham, R.A., Morosin, B., Venturini, E.L., Carr, M.J., and Beauchamp, E.K., Shock-Compression Processes in Inorganic Powders, in Metallurgical Applications of Shock-Wave and High-Strain-Rate Phenomena (edited by Murr, L.E., Staudhammer, K.P., and Meyers, M.A.), Marcel Dekker, New York, 1986, pp. 1005-1012. 

Geimer, R.L., Mahoney, R.J., Loehnertz, S.P, Meyer, R.W., Influence of process induced damage on the strength of flakes and flakeboards. Research Paper FPL 463, USDA Forest Products Lab., Madison, Wl, 1985. 

This process has received extensive attention in the past because of its considerable synthetic utility and mechanistic interest, and a number of excellent reviews by some leading contributors in the field such as Bordwell, Paquette and Meyers have been published during the last two decades15-18,152-154. Consequently, only the main features of this rearrangement and some of its latest developments are presented below. 

Meyer, G. A., Wells, S. G., and Jull, A. J. T. (1995). Fire and alluvial chronology in Yellowstone National Park Climatic and intrinsic controls on Holocene geomorphic processes. Geol. Soc. Am. Bull. 107, 1211-1230. 

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