Mercury organo- compounds aromatic

The preparation of organopalladium compounds by exchange reactions of palladium salts and organo-lead, -tin, or -mercury compounds is apparently not the only way that they can be obtained but it does seem to be the most useful way. Convincing evidence is now available to show that direct metalation of aromatic compounds with palladium salts (palladation) can occur. Since the initial report of Cope and Siekman 32> that palladium chloride reacted readily with azobenzene to form an isolable chelated, sigma-bonded arylpalladium compound, several additional chelated arylpalladium compounds have been prepared. 

The RAM II process (Fig. 18.31) developed by IFF is ideally suited for simultaneous removal of arsenic, mercury and lead from contaminated feedstocks, upstream of aromatics complexes or steam-cracking units. Typical results are excellent, less than 3 ppb of each contaminant in the process effluent as threshold limit for analysis, 1 ppb of each as expectation. Mercury removal from a HC cut is not as simple as the same operation from a gas or LPG feed. The very nature of the mercury compounds to be found in such a cut requires a two-step process in which the organo-mercuric species are decomposed into hydrocarbons and... 

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