Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"zinc sulphate"”.
-
A study of the system ZnSo₄ - H₂O at 25⁰C
… following factors are evident: Two hydrates of zinc sulphate exist at this temperature, the heptahydrate and the monohydrate. The transition point between the ZnSO₄·7H₂O and ZnSO₄·H₂O is given as 22.25% sulphuric acid and 22.81% zinc sulphate. The transition point between the ZnSO₄·H₂O and …
-
Evaluating the Potential of Scaling due to Calcium Compounds in Hydrometallurgical Processes
… theoretical and experimental study on calcium sulphate scale formation in hydrometallurgical solutions containing various minerals was conducted. A new database for the Mixed Solvent Electrolyte (MSE) model of the OLI Systems® software was developed through fitting of existing literature data …
-
Drug delivery during breastfeeding: investigations of formulations and clinical feasibility
… care. Formulation investigations included zinc sulphate loaded non-woven fibre mats, and iron sulphate loaded liquid-core alginate hydrogels, using a modified and a commercially available nipple shield design. While full release during breastfeeding simulation was not achieved, both …
-
Electrochemical Deposition of Copper and Zinc Nanomaterials at Polypyrrole Thin Films
The electrodeposition of copper- or zinc-based nanomaterials was performed on the top of polypyrrole-polystyrene sulfonate (PPy-PSS) thin films from their respective sulfate solutions in presence of dissolved oxygen. Three main processes were responsible for the formation of the nanomaterials, …
-
Structural study of human antibody fragments with specificity for Mucin-1 antigen
… a size of 180x60x60µm in 100mM MES, pH 6.5, 5mM zinc sulphate, 25% v/v polyethylene glycol 550 monomethylether in the presence of low concentration of subtilisin Carlsberg. The protease addition results in complete degradation of M12-VL domain, linker and purification tags. The crystal belongs to …
-
Abscheidung von Nickel und anderen Schwermetallen bei der Reinigung von Zinksulfatlösungen durch Zementieren mit Zinkstaub
The industrial production of zinc sulfate employs aqueous ZnSO4 solutions. These are made from leaching zinc-containing secondary materials with sulfuric acid, with the result that they are contaminated with considerable quantities of heavy metals. These metals are removed from the solution by the …
-
The role of surfactants in the leaching of zinc sulphide minerals at temperatures above the melting point of sulphur
… diamine (OPD) in the liquid sulfur-aqueous zinc sulphate-zinc sulfide mineral system has been studied. The effect of the various surfactants on the liquid sulfur-aqueous system interfacial tensions and the liquid sulfur-mineral contact angle were measured in a high temperature-high pres-sure …
-
Application of graphene based composites in agriculture
… To prove this concept, the micronutrients zinc (Zn) and copper (Cu) were loaded onto GO sheets. The GO sheets provided a high loading capacity for Zn and Cu (14% and 10% by weight, respectively) with slow release properties. The GO-based fertilizers displayed a biphasic release behaviour …
-
Disponibilidad y efectividad relativa de quelatos de zinc aplicados a suelos en un cultivo de lino (Linum usitatissimum L.) textil
… de micronutriente lábil en los suelos. SUMMARY Zinc fertilizers are habitually applied to numerous agricultural crops of agricultural soils. Zinc sulphate (ZnSO4) is one of most common micronutrient sources, but the formulas of organic origin are used more and more to correct the deficiencies of …