Solid designation

Dusts from solid Design operation to minimize/eliminate dusts or filling, vapors vapors from liquid filling., proper personal protective equipment Ensure proper design of local ventilation ACGIH 1986 CCPS G-3 CCPS G-22 CCPS G-23 CCPS G-29... 

Frequently the most important planar defects in a crystal are the external surfaces. These may dominate chemical reactivity, and solids designed as catalysts or, for example, as filters must have large surface areas in order to function. Rates of reaction during corrosion are frequently determined by the amount of surface exposed to the corrosive agent. (A further discussion of surface physics and chemistry, although fascinating, is not possible within the scope of this volume.)... 

Y.T. Shah, Gas-Liquid-Solid Design, McGraw-Hill, New York, 1979. 

Gayer and Leider [1954GAY/LE1] studied the solubihty of Th(lV) hydroxide in HCIO4 and NaOH solutions at 25°C. The solid, designated as thorium hydroxide ThO(OH)2(s), was precipitated from thorium perchlorate solution by adding an excess of NaOH, washed with water and used for solubility experiments in following media ... 

At temperatures higher than about 80 °C, the oxyhydroxides become thermodynamically more stable than the trihydroxides (54) and thus tend to form. Poorly crystallized solids designated as pseudoboehmite form at lower temperatures, whereas weU-crystaUized boehmite forms at higher temperatures or after longer aging. The typical conditions for the formation of poorly crystallized, gelatinous pseudoboehmite are pH values of about... 

For adequate design and performance predictions, nmiideal effects such as blockage, pressure loss, deviation, and endwall secondary flows should also be cmisidered. If the wall and flow temperatures differ, significant heat transfer can also occur and should be considered, especially for compressible flows. Extensive literature and a solid design basis on the aerodynamics of microturbomachinery are not yet available since the range of Re encountered (100 < Re < 10, 000) is not common in past applications. Furthermore, experimental measurements are challenging at the microscale with traditional instrumentation. The use of computational fluid... 

The reactivity of a heterogeneous catalyst depends on the work function of the solid. Design a catalyst surface that has an activity that can be electrically controlled. 

Adsorber—device (such as a reactor or a dryer) filled with porous solid designed to remove gases and liquids from a mixture. 

During the adsorption process, a device (reactor, dryer, etc.) is filled with a porous solid designed to remove gases or liquids from a mixture. Typically the process is run in parallel with a primary and secondary vessel. The adsorber can be activated alumina or charcoal. A variety of adsorption materials can be used. The adsorption material has selective properties that will remove specific components of the mixture as it passes over the adsorber. A stripping gas is used to remove the stripped components from the adsorption material. 

An absorber is used to remove selected components from a gas stream by contacting the stream with a gas or liquid. Stripping columns are used with absorption columns to remove liquid hydrocarbons from the absorption oil. An adsorber is a device filled with a porous solid designed to remove gases and liquids from a mixture. A scrubber is used to protect and enhance environmental quality by removing chemicals and solids from process gases. 

Corrosion and erosion go together in fluidized bed units a corroded patch is soon eroded by the abrasion of the solids. Design has to take this fact into account. Units have been lost in short order because of a combination of corrosion and erosion. Tests should be carried out in the Pilot Plant to see how best to cope with these problems. 

The coimterpart of aerogel large porosity is their poor mechanical properties. A material can be defined as a solid designed for an application and applications can only be Mfilled if the mechanical features of the material are acceptable. Certainly one of the new challenges of the aerogel research field concerns the improvement of their mechanical behaviour. 

Chem. Descrip. Polyacrylates and polymaleic polymers Uses High performance scale and deposit control agents for boiler and cooling water systems provides effective scale control over wide range of pH, temp., and hardness ranges effective with both hard or soft feedwaters provides protection from calcium carbonate and calcium sulfate exc. dispersant for calcium phosphate, iron oxides, and other inorg. solids designed to be used in conjunction with corrosion inhibitors... 

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