Last edited by Zulabar
Sunday, July 26, 2020 | History

2 edition of Experimental and theoretical studies of solid solution formation in lime and limestone SO found in the catalog.

Experimental and theoretical studies of solid solution formation in lime and limestone SO

Benjamin F. Jones

Experimental and theoretical studies of solid solution formation in lime and limestone SO

by Benjamin F. Jones

  • 281 Want to read
  • 9 Currently reading

Published by Environmental Protection Agency, Office of Research and Development, for sale by the National Technical Information Service in Washington, Springfield, Va .
Written in English

    Subjects:
  • Precipitation (Chemistry),
  • Scrubber (Chemical technology)

  • Edition Notes

    Statementby Benjamin F. Jones, Philip S. Lowell, and Frank B. Meserole.
    SeriesEnvironmental protection technology series ; EPA-600/2-76-273 a, Environmental protection technology series ; EPA-600/2-76-273 b, Research reporting series -- EPA-600/2-76-273 a., Research reporting series -- EPA-600/2-76-273 b.
    ContributionsLowell, Philip S., Meserole, F. B., United States. Environmental Protection Agency. Office of Research and Development.
    The Physical Object
    Pagination2 v. :
    ID Numbers
    Open LibraryOL17647379M

    SFC forms a solid solution along a trend line between the theoretical end-members CF3 and C4S3. Figure 1 shows that the maximum solid solution range occurs between compositions containing approximately through to mass% C4S3 component. The solid solution is stable between K and K. Above K, the compositional range narrows. Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and is most often formed by rapid cooling of the molten form; some glasses such as volcanic glass are naturally most familiar, and historically the oldest, types of manufactured glass are "silicate.

    Chloride binding is investigated for Portland cement–metakaolin–limestone pastes exposed to CaCl{sub 2} and NaCl solutions. The phase assemblages and the amount of Friedel's salt are evaluated using TGA, XRD and thermodynamic modeling. A larger amount of Friedel's salt is observed in the metakaolin blends compared to the pure Portland cement. logicstudies,andinstudiesofpresent-dayenvironmentsofcarbon- atedeposition,isotopiccomposition of carbonates, and experimental aqueousandnonaqueous re five parts in.

    The formation of thaumasite was investigated with the progressive equilibrium approach (PEA). This approach experimentally simulates the conditions of various levels of sulfate addition in hardened cement pastes. The influence of limestone, time, C{sub 3}A content, temperature and leaching on thaumasite formation was investigated. Standing column well constitutes a recent promising solution to provide heating or cooling and to reduce greenhouse gases emissions in urban areas. Nevertheless, scaling issues can emerge in presence of carbonates and impact their efficiency. Even though a thermo-hydro-geochemical model demonstrated the impact of the water temperature on carbonate concentration, this conclusion has not been.


Share this book
You might also like
Midaq Alley

Midaq Alley

Hooked on Flies

Hooked on Flies

Proposals for publishing by subscription, A new American biographical dictionary, or a remembrancer of the departed heroes, sages, and statesmen of America

Proposals for publishing by subscription, A new American biographical dictionary, or a remembrancer of the departed heroes, sages, and statesmen of America

The strangers guide, to the cities of Montreal and Quebec

The strangers guide, to the cities of Montreal and Quebec

Notes concerning climatic and floristic regions of Eritrea

Notes concerning climatic and floristic regions of Eritrea

The Certificate of Initial Mastery

The Certificate of Initial Mastery

Civil defence

Civil defence

Naruto

Naruto

Office practice dictionary

Office practice dictionary

Elon A. Marsh and Minard Lafever.

Elon A. Marsh and Minard Lafever.

Heat transmission through boiler tubes

Heat transmission through boiler tubes

Van Dorn

Van Dorn

Profiling for public safety: Rational or racist?

Profiling for public safety: Rational or racist?

Fba Litigation Conference

Fba Litigation Conference

Natural disasters

Natural disasters

The complete diaries of Theodor Herzl

The complete diaries of Theodor Herzl

Women on the move

Women on the move

Experimental and theoretical studies of solid solution formation in lime and limestone SO by Benjamin F. Jones Download PDF EPUB FB2

Get this from a library. Experimental and theoretical studies of solid solution formation in lime and limestone SO₂ scrubbers. [Benjamin F Jones; Philip S Lowell; Frank B Mesrole; United States. Environmental Protection Agency. Office of Research and Development.]. The experimental system is simple and convenient to operate, so it can be used in engineering application to obtain dissolution rate of limestone for design of wet flue gas desulfurization system.

1. Introduction. An alternative to conventional pyrometallurgical methods to solve the problem of high SO 2 emission is to use radically different process chemistry to permit the production of copper metal without SO 2 generation. One of these is based on the roasting of pellet of copper concentrate with lime as a reagent to absorb the sulphur and prevent the sulphur dioxide by: 8.

Experimental and Theoretical Study of Materials Finely Ground by the Electro-Hydropulse Method Article in Refractories and Industrial Ceramics 46(3) May with 7 Reads.

For the solid solutions formed by the entrapment of SO 4 2−, SeO 4 2− and SeO 3 2− the free energy difference between the trapped composition of the bulk solid solution, and conditions that must prevail at the crystal surface in order to explain the formation of such a solid solution during the growth process, are very big.

Assuming an Cited by: A simulated flue gas with a composition of 5% O 2, 15% CO 2, and ppm of SO 2, balanced with N 2, and a total flow rate of 6 LPM, was bubbled in a slurry containing 5 L of DI water, 50 g of synthetic gypsum (or gypsum), and 10 g of dried lime sludge or limestone.

A solution of HgCl 2 was added to the slurry at the beginning of each. All the solutions were compared with experimental results of CO 2 and SO 2 absorption in a well-stirred vessel containing slaked lime slurry, Ca(OH) 2.

All the models reported to date assumed that the liquid is stagnant, a fact that caused an underestimation of the mass transfer rate from the gas into the liquid-phase.

In view of its importance, many studies on the dissolution of lime into the converter slag have been carried out, including reaction mechanism 1,2) and the factors affecting the dissolution rate.

This study has examined the effects of limestone characteristics (microstructure and texture) and calcination temperature on the quality of the produced lime. Two types of limestone have been. Case studies for quantitative permeability evaluation through the Stoneley response are reported with success in a variety of field conditions.

Fig. shows one such case where permeability quantification is utilized in a dolomitic limestone formation having porosities of 15%–20% and varying permeabilities. Track-1 denotes the volumetric.

Particle formation during spray fluidized bed granulation can take place along three different processing particles are sprayed onto with a liquid, containing different solid material than the particles, the process is called coating (Fig.

2A).As stated before, the coating shell protects particles, e.g., against mechanical stress, too fast dissolution or too fast release of drugs.

According the former experimental studies and limestone accounted for almost the entire bed. The for- for comparison with the experimental results. The solid lines. Detailed field and petrographic-analytic studies, combined with fluid inclusion and stable isotope studies, yield estimates of P-T-X conditions during skarn evolution.

Initial skarn formation occurs between ° and °; higher temperatures are more characterisitc of deeper occurrences (1 to 3 kb) than of shallower occurrences ( to 1 kb). In a Finnish study of BOF slag the main mineral phases occurring were dicalcium silicate, tricalcium silicate, wustite, dicalcium and calcium ferrite and lime.

Dicalcium ferrite and wustite in solid solution with MgO and MnO formed the matrix. VzO5 and P20~ were found in the edges of the tricalcium and dicalcium silicate grains [I]. (a–d) Experimental formation of a wood chip heap and (bottom row) depiction of the angle of repose, Φ, (e) and an exemplary bulk solid heap of.

The authors found that both mechanochemical and solution-based synthesis lead to the formation of foil-like C-S-H regardless of the initial Ca/Si ratio. In contrast, when the authors performed the controlled hydration of pure C 3 S at a constant lime concentration, the initial Ca/Si ratio exerted a greater effect on the final morphology.

For the aqueous Ca(OH) 2 solutions series, the tested Ca 2+ concentrations were from to 20 mmol/L, which were obtained by diluting a saturated lime solution ([Ca 2+] = 22 mmol/L).In this case, the pH of the Ca-solutions were varied from to at 25 °C (Table 4).For mixtures solutions, different concentrations of aqueous of Ca(OH) 2 solutions (from to mmol/L) were firstly.

Thus experiments measuring the rate of absorption of SO. into lime slurries at different flow rates (which varies fe *) should give an indic- ii ation of whether the rate of dissolution of the solid is rapid enough to increase the overall rate of absorption above that expected for absorp- tion into the homogeneous liquid phase or whether the.

The Paper presented from an experimental study for circular and square footing with same area that resting on sand bed. The steel model footing with 12 cm diameter ( cm2) and square footing with cm width in sand with relative density 60% were used. For reinforced conditions geogrid layers were used.

study is based on mesh concentrates. A series of kinetic and process optimiza­ tion studies on pellet roasting were made using an apparatus in which both weight change and S02 in the effiuent gas were continuously measured.

Finally, the effiuent gas was scrubbed in a sodium hydroxide so­. Abstract. In view of the conflicting reports in the literature regarding the effects of thiosulfate in FGD scrubber-type systems, this investigation was undertaken with the objectives of determining whether or not thiosulfate additive inhibits oxidation and scaling in lime/limestone FGD scrubber systems and, if so, the range of conditions under which it can be utilized.An experimental program was initiated to study the process chemistry for a double- alkali flow scheme using low concentration (M) scrubbing solutions of sodium and regeneration using both limestone and lime.recent experimental studies performed in the rock physics community on limestone de-formation and synthesize the observations and measurements obtained in these studies.

We nally note that very few studies of carbonate compaction were published in the academic literature, most of the studies being kept con dential in internal reports in.