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Partial heating procedure

On the other hand, the intensity of TSD (1 peaks is proportional to the volume concentration of ether groups in the polymer. Peak cleaning and partial heating procedures allow us to separate the (32 process from the total TSD spectrum. Probably, one of the (3 peaks corresponds to crankshaft-type motion. [Pg.69]

It is readily imaginable that this process can be transferred into a continuous partially automated procedure similar to a non-woven line. The new production process will also permit the broad availability of catalysts on micro structures. A wide application of these catalysts was up to now hindered by the costs per unit and the non-existent technology for industrial production. The process is also applicable to heat exchangers, which can just be considered as uncoated reactors. [Pg.623]

The thermal cleaning method and partial heating are known as experimental separation methods of composite TSC spectrum and only initial rising part of TSC spectrum was used for estimation of Et value. The initial rise method(Garlick Gibson,1948) is the only one procedure to apply to data without a peak until now. However, in AEM-o, an application is possible to an omniformity-shaped TSG spectrum. [Pg.395]

The stepwise heating procedure applied to a mineral sample, which underwent partial loss of radiogenic argon, permits a set of dates to be calculated, and this procedure ideally includes... [Pg.766]

Sdnchez-Rivera MM, Flores-Ramirez I, Zamudio-Elores PB, Gonzdlez-Soto RA, Rodrfguez-Ambn z SL, BeUo-Perez LA. 2010. Acetylation of banana Musa paradisiacal L.) and maize Zea mays L.) starches using a microwave heating procedure and iodine as catalyst Partial characterization. Starch/Starke 62 155-164. [Pg.80]

Fractionally distd under vacuum, then fractionally crystd twice from its melt. Impurities include acetic acid, methyl amine and H2O. For detailed purification procedure, see Knecht and Kolthoff, Inorg Chem 1 195 1962. Although /9-methylacetamide is commercially available it is often extensively contaminated with acetic acid, methylamine, water and an unidentified impurity. The recommended procedure is to synthesise it in the laboratory by direct reaction. The gaseous amine is passed into hot glacial acetic acid, to give a partially aq soln of methylammonium acetate which is heated to ca 130° to expel water. Chemical methods of purificatn such as extractn by pet ether, treatment with H2SO4, K2CO3 or CaO can be used but are more laborious. [Pg.287]

The procedures of measuring changes in some physical or mechanical property as a sample is heated, or alternatively as it is held at constant temperature, constitute the family of thermoanalytical methods of characterisation. A partial list of these procedures is differential thermal analysis, differential scanning calorimetry, dilatometry, thermogravimetry. A detailed overview of these and several related techniques is by Gallagher (1992). [Pg.240]

Another serious problem in heat exchangers is corrosion. Severe corrosion can and does occur in tubing and very often with common fluids such as water. Proper material selection based on a full analysis of the operating fluids, velocities and temperatures is mandatory. Very often, heavier gauge tubing is specified to offset the effects of corrosion, but this is only a partial solution. This should be followed by proper start-up, operating and shut-down procedures. [Pg.30]

Caution This procedure should be conducted in a good hood. The slurry is stirred while being heated on a steam bath, and solid sodium hydrosulfite is added until the red color of the nitroso compound is completely bleached (Note 5). Then an additional 30 g. of sodium hydrosulfite is added the light tan suspension is stirred with heating for 15 minutes more and is then allowed to cool. The dense diaminouracil bisulfite is filtered from the cooled solution, washed well with water, and partially dried. [Pg.9]

The material and energy balances of a tubular vessel are based on the conservation law, Eq 2.42, applied to a differential ring between r and r+dr and z and z+dz. A material balance is derived, for example, in problem P5.08.01, and is quoted in Table 2.6 along with the heat balance. The result is a pair of second order partial differential equations, usually nonlinear, that must be solved numerically. Table 2.6 indicates one possible procedure, but computer software is plentiful. [Pg.51]


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See also in sourсe #XX -- [ Pg.68 ]




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