Process duration

Further data required for the problem is given in Table 6.2. Table 6.2 gives the necessary process durations, maximum amount of water, selling price of each product and raw material costs. The maximum amount of water given in Table 6.2 is calculated using constraints (6.10). 

Unit Max outlet concentration (ppm) Max inlet concentration (ppm) Mass load (g) Max water (t) Process duration GO... 

The development of a quantitative theory of a free-radical copolymerization implies the derivation of equations for the rate of the monomers depletion and the statistical characteristics of the chemical structure of macromolecules present in the reaction system at the given conversion p of monomers. Elaborating such a theory one should take into account a highly important peculiarity inherent to any free-radical copolymerization. This peculiarity is that the characteristic time of a macroradical life is appreciably less than the time of the process duration. Consequently, its products represent definitely... 

The backing pump must be suitably rated with regard to the volume of the vessel and the desired pump-down time. This pump-down time is arranged according to the desired process duration if the process is to be finished after 12 -15 h, the pump-down time should not last longer than 1 h. The size of the backing pump may be easily calculated according to Section 2.3.1. 

Total process duration Short Approx. 30% higher than SWS... 

A composition of nanomaterials, their structures and properties strongly depend on conditions of the synthesis. The optical properties of particles are mostly determined by the process duration and metal ion/arabinogalactan ratio. An increase of the reducing time leads to an Increase of amount of the particles. 

Step Process Duration Step Process Duration... 

The estimation of corrosion process duration (without any consideration of the peculiarities of the corrosion process in the test cabinet environment and experimental conditions) gives the value of 0.14 h. 

During the period of the current decay, there are two competitive processes, densification to form the barrier layer and dissolution of barrier layer to form the porous layer. Under the high electrical field strength (constant voltage mode), the densification of the aluminium oxide films is favoured for process durations shorter than 3700 s. When the constant voltage was kept for a long anodisation time (beyond 10900 s), the dissolution of the aluminium oxide film becomes more dominant. Thus, the film could be contaminated by inward migration of the electrolyte into the film or by formation of micro-voids. 

Step Process Duration Inlet Outlet Control Summary... 

Several authors have studied the mild hydrothermal production of NS-Ti02 and the influence of various parameters such as temperature, process duration, pressure and pH on the resultant product [101-129]. We have summarized experimental the conditions and morphological properties of NS-Ti02 and other nano-fitanates produced by hydrothermal method in Table 2. In hydrothermal processes, in which the experimental temperature was kept at 150°C, Ti02 particles with a high... 

The optimal conditions of CNTs growth on the Si/Ti surface were found the following the concentration of ferrocene in p-xylole is 0.9 %, solution injection rate is 0.35 mi min 1, the temperature is 820 °C, Ar flow rate is 100 cm3min and the process duration is 1 min (Fig. 3). Under the optimal conditions the... 

Ash Incinerator bottom ash Pb, Cu, Zn, Cd Polluted Comparative experiments by different current density and process duration Traina, Morselli, and Adorno (2007)... 

Q decrease according to the relationship (79) approximately by 30% at typical synthesis process duration f=60 min. Hence, the main reason of Q decrease in the adduced above example can be the dependence of macro-molecular coil D on temperature. 

The considered effect is very similar to the received one at the comparison of polyarylates, S5mthesized by equilibrium and nonequilibrium (interphase) polycondensation [5], So, for polyarylate F-2, received by the first from the indicated methods, estimation according to the Eq. (4), gives D=. ll and by the second one—D=. 55. This distinction was explained by the polyarylates structure distinction, received by the indicated above methods. Hard conditions of equilibrium poly condensation (high temperature, large process duration) can cause the appearance of branched reaction products owing to lacton cycle rupture in phenolphthaleine residues then the exponent in Mark-Kuhn-Houwink equation should be reduced, since its value is less for a branched polymer, than for a linear one [5], If it is like that, then Devalue should be increased respectively according to the Eq. (4). 

Kinetic investigations presented in [247, 248] showed that use of TiCU as catalyst for industrial piperylene fraction polymerization (components content, mass % rrans-piperylene 60,8, cis-piperylene 37,2, etc.) allows to produce oligopiperylene with high yield (80-95%) with desired MM (80-2000) at comparable high process duration (nearly 1 hour). Polymerization process in toluene medium is characterized by the first orders by catalyst and monomer with constants of chain propagation, transfer on monomer and catalyst rates 1,5, 0,04 and 0,86 l/mole-min accordingly. Oligomers MMD has unimodal character, but with synthesis temperature rise products polydispersity increases. 

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