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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 161 to 170 of 3992 (0.038 seconds)Spelling suggestions: "subject:"copper"" "subject:"chopper""
| 161 |
FIRE REFINING OF HYDROMETALLURGICALLY PRODUCED COPPER.Bhappu, Ross Randolph. January 1984 (has links)
No description available.
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| 162 |
Thermochemical nature of arsenic, antimony and bismuth in copper smelting matteAkagi, Susumu, 1954- January 1988 (has links)
The equilibrium distribution measurements of As, Sb and Bi between molten copper and white metal and molten copper and matte were conducted to evaluate the activity coefficients of these impurity elements in copper smelting matte. The experimental results were analyzed through comparison and reconciliation with data in the literature. The following equations, based on a liquid standard state, were obtained for ᵞAs, ᵞSb and ᵞBi in white metal coexisting with copper phase at 1,150-1,200°C. Ln ᵞAs = -2.49 + 0.186 NAs; Ln ᵞSb = -1.23 + 23.5 NSb; Ln ᵞBi = 3.01 + 14.0 NBi where Ni represents the mole fraction of the element Bi in white metal. Analysis of the data demonstrated that a major factor in removing As, Sb and Bi in matte during smelting involves careful control of the sulfur pressure, ie. matte's sulfur content, the optimum matte composition's being those that approach the Cu₂S-FeS pseudo binary.
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| 163 |
The effect of copper status on blood antioxidant defence enzymesCarville, David Gerald Michael January 1988 (has links)
No description available.
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| 164 |
The development of functional indicators of optimal nutritional status for copperBonham, Maxine January 2002 (has links)
No description available.
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| 165 |
An investigation of the copper-difluorodihalomethane-amide trifluoromethylating systemMcClinton, Martin Andrew January 1989 (has links)
No description available.
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| 166 |
Nucleophilic aromatic substitution using supported copper(I) reagentsJones, Craig Warren January 1989 (has links)
No description available.
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| 167 |
Biomarkers of soil contaminationScott-Fordsmand, Janeck James January 1998 (has links)
No description available.
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| 168 |
Development of a mechanistic model to assess the distribution of heavy metals in municipal wastewater treatmentGaber, Noha January 2001 (has links)
No description available.
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| 169 |
Fabrication and characterisation of high temperature superconducting bulk YBCOManton, Stephen John January 2000 (has links)
No description available.
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| 170 |
The synthesis af novel butadiene containing polymers by controlled radical polymerisationMorsley, Stuart January 2000 (has links)
No description available.
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