High-percent solids

The term coal slurry, therefore, includes all mixtures of coal and water that can flow as a fluid. There are four main types of high-percent-solid coal slurries discussed in the literature, with different characteristics depending on the application ... 

Coal-water slurry fuels. High-percent-solid slurries that are stable against settling, so they can be pumped, stored, handled, and burned much like heavy fuel oil. Coal-water fuels have about half the heating value of fuel oil, and because of their water content they burn cooler than pulverized coal, leading to lower production of nitrogen oxides. 

High Percent Solids Continuous Addition Emulsion Polymerization of Vinyl... 

May be used with high percent solids. Vacuiun crystallizers are normally limited to about 25 percent by weight or less solids. This equipment has worked in a range of 65 percent by weight solids as sliury. 

Figures VI and VII illustrate the initial viscosity of both the Hycar 2103 and Hycar 2106 systems as well as the viscosity increase with time due to the reactive nature of the 2-component system. These figures will help in determining the percent solids necessary for processing on a given piece of equipment depending upon its viscosity handling capability. Since the 100% solids PSA systems have high initial viscosities of over 100 Pa s (100,000 cps), the conventional knife-over-roll and reverse roll coaters can not process them.

The dark-colored clarified liquor is presure-filtered and concentrated to 60 percent solids in multiple-effect evaporators. The concentrated liquor is decolorized with granular carbon in columns 12 ft in diameter and 30 ft high in a countercurrent manner that is, liquor flows upward in the columns, while a portion of the carbon is removed from the bottom periodically. Carbon is used at a rate of 2.5 percent of dry solid processed, and approximately 5 percent of carbon is lost during revivification.91 In some cases, granular carbon has been replaced by synthetic polymeric adsorbents to decolorize the syrup. Low ash syrups usually are deionized with ion-exchange resins. The processed liquor is evaporated to a final solids content of 75-85 percent in a single-effect evaporator. 

For Corn Syrups, High-Fructose Corn Syrups, Liquid Fructose, and Maltodextrin, convert the refractive index to approximate percent solids using the accompanying tables. 

The early experiments on solvent extraction directly from leached pulp were beset with problems such as losses of solvent in the aqueous phase and the formation of emulsions. The use of mixer-settler, pump mixer, and internal mixer-settler type contactors on a laboratory scale (Gil) has demonstrated the feasibility of uranium extraction from desanded slurries with 5-1. )% solids and from high-density slurries with 48-60% percent solids. The deemulsification rate of a synthetic slurry as a function of the temperature of the system and the pH of the slurries (T12) and the effect of extractant entrainment in the aqueous effluent on solvent extraction of uranium from slurries containing more than 40% solids (E6) have been studied. 

One Hundred Percent Solids Coatings. As indicated in the introduction, environmental restrictions have led to increasing emphasis on either high-solids or even 100% solids urethane coatings. The latter may consist of either solventless liquid coatings or solid powder coatings. Relatively little information is currently available on these types of coatings. 

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