Chemical consolidation

Biocalcification. An alternative to chemical consolidation of stone is the exploitation of a common phenomenon found in living organisms known as biomineralisation, which produces shells in animals. Microorganisms can also be isolated from the environment or stone surfaces that are able to precipitate... 

DETERMINATION OF CHEMICAL CONSOLIDATION IN PERMEATION EXPERIMENTS WITH ETHANOL... 

For the parameters representing the chemical effects, we first considered the set of values estimated by Hueckel (1997) using an interpretation of the permeation tests of Fernandez and Quigley (1991) (i.e., Fo=-0 029, Po=l-32, fl=3.45 ). With these parameters, the chemical consolidation for the tests at 160 kPa was greatly overestimated. 

Coffman, R. L., Agnew, N., Selwitz, C. (1991). Modification of the physical properties of natural and artificial adobe by chemical consolidation. In P. B. Vandiver, J. Druzik, G. S. Wheeler (Eds.), Materials issues in art and archaeology II symium, San Francisco, April 17-21, 1990 Papers (pp. 201-207). Materials Research Society. 

Young, M., Cordiner, P., Murray, M. (2003). Chemical consolidants and water repellents for sandstones in Scotland. Historic Scotland. 

Typical structures of mechanically, thermally, and chemically consolidated non-... 

The metal is isolated commercially by a complex chemical process, the final stage of which is the hydrogen reduction of ammonium ruthenium chloride, which yields a powder. The powder is consolidated by powder metallurgy techniques or by argon-arc welding. 

J. Gregory, in B. M. Moudgil and P. Somasundaran, eds.. Flocculation, Sedimentation and Consolidation, American Institute of Chemical Engineers, New York, 1985, pp. 125-138. 

This is a material produced from the impregnation of glass fibre-mat (fibreglass, which is in the form of dry sheet, is commonly known as chopped stranded mat (CSM)) or rovings, with a liquid and unsaturated polyester resin, which thickens chemically to a dry sheet form. The total mix is sandwiched between polyethylene films and then roller-pressed to impregnate and consolidate it. 

John F. Murphy, Dow Chemical Company s Consolidated Audit, Proceedings of AlChE 1992 Loss Prevention Symposium. 

These reports were in addition to the internal reporting for OSHA PSM and various local or state requirements. While Quality Chemical had long ago consolidated a number of these programs, there were still four different accident/incident reporting systems—one for external reporting of releases, one for external reporting of injuries and other nonrelease events, one for a corporate-wide database and one for each site itself. 

In addition, detailed analysis of the chemical and physical properties of different oils used in the plant can, in some cases, allow consolidation or reduction of the number and types of lubricates required to maintain plant equipment. Elimination of unnecessary duplication can reduce required inventory levels and therefore maintenance costs. 

The very chemically reactive plutonium hydride is usually decomposed in a vacuum-tight furnace capable of attaining a temperature of 700°C. Plutonium hydride that is decomposed under vacuum at temperatures below 400°C forms a very fine (<20y) metallic powder above 500°C the powder begins to sinter into a porous frit which melts at 640°C to form a consolidated metal ingot. This metal typically contains significant oxide slag but is suitable for feed to either molten salt extraction or electrorefining. 

The solgel process uses a liquid reactive precursor material that is converted to the final product by chemical and thermal means. This precursor is prepared to form a colloidal suspension or solution (sol) which goes through a gelling stage (gel) followed by drying and consolidation. The process requires only moderate temperatures, in many cases less than half the conventional glass or ceramics... 

Deanase (Consolidated Chemicals) wfm I Ribociclina (Puropharma)-comb. 

Third, students understanding of the triplet relationship for a particular type of reaction may be further consolidated by carrying out additional similar reactions using different reactants (e.g., using several metal oxides to react with different dilute acids will help illustrate the similarities in the chemical reactions although different salts are produced). Once students become aware of the similarities in the chemical reactions, they would be more likely to meaningfully deduce the ionic equations for the chemical reactions instead of the common practice of cancelhng out the spectator ions from the overall balanced chemical equation. 

The knowledge was consolidated on further examples of chemical reactions (macro level, submicro level symbolic). 

Finally, it may be pointed out that none of the rare metals can be smelted directly from the ore. The concentrate must first be converted to a pure chemical compound which is utilized as the raw material for the production of the metal. The refractory rare metals are often obtained in the form of a powder or sponge. They are consolidated and refined by powder metallurgy techniques or by arc melting or by electron beam melting. In fact, the current refractory rare metals technology has been crucially dependent on the development of vacuum metallurgical techniques and processes. 

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