Buildings, disassembly

K Building Disassembly Basin External Events Analysis, Revision 0," N-CLC-K-... 

Penicilloic acid 5, the substrate for the projected lactamization reaction, could be derived from the suitably protected intermediate 6. Retrosynthetic disassembly of 6, in the manner illustrated, provides D-penicillamine hydrochloride (7) and tert-butyl phthalimido-malonaldehydate (8) as potential building blocks. In the synthetic direction, it is conceivable that the thiol and amino groupings in 7 could be induced to converge upon the electrophilic aldehyde carbonyl in 8 to give thiazolidine 6 after loss of a molecule of water. 

The synthetic problem is now reduced to cyclopentanone 16. This substance possesses two stereocenters, one of which is quaternary, and its constitution permits a productive retrosynthetic maneuver. Retrosynthetic disassembly of 16 by cleavage of the indicated bond furnishes compounds 17 and 18 as potential precursors. In the synthetic direction, a diastereoselective alkylation of the thermodynamic (more substituted) enolate derived from 18 with alkyl iodide 17 could afford intermediate 16. While trimethylsilyl enol ether 18 could arise through silylation of the enolate oxygen produced by a Michael addition of a divinyl cuprate reagent to 2-methylcyclopentenone (19), iodide 17 can be traced to the simple and readily available building blocks 7 and 20. The application of this basic plan to a synthesis of racemic estrone [( >1] is described below. 

The various sizes and types utilize single-bar, multifield, multipole magnets singly or in factory assembled bar-bundles. They are further designed for easy disassembly and cleaning in systems with existing corrosion build-up or iron content in the water. ... 

A plate-and-frame filter press contains 16 frames and operates at a constant flow rate of 30 gpm. Each frame has an active filtering area of 4 ft2, and it takes 15 min to disassemble, clean, and reassemble the press. The press must be shut down for disassembly when the pressure difference builds up to 10 psi. What is the total net filtration rate in gpm for a slurry having properties determined by the following lab test. A sample of the slurry is pumped at a constant pressure differential of 5 psi through 0.25 ft2 of the filter medium. After 3 min, 1 gal of filtrate has been collected. The resistance of the filter medium may be neglected. 

Decontamination of JACADS will require chemical, mechanical, and thermal processing. The removal of critical structural components and systems from buildings will have to be planned to ensure structural stability. Residuals of any of the agents processed at JACADS (HD, GB, and VX) may be exposed during disassembly activities. These residuals will be harmful to anyone in the immediate area If they are vaporized, airborne agent concentrations could be harmful, so decontamination procedures for equipment, waste streams, and building materials must ensure that agent residues are destroyed, and the destruction must be verified. 

JACADS has one large process building where munitions are disassembled and their various components processed and incinerated in three combustion units. There are also a tall stack, auxiliary process off-gas trains, building HVAC eqnipment, and several auxiliary buildings. 

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