Influential factors for main mechanical properties of electrolytic copper foil
The apparent molar absorbance of thismethod is 2.2×10-4 L.mol-1.cm-1,and Beer's law is obeyed in the range of 0-25 μg/25 ml. The analysis results of phosphorous content in samples of tin bronze,brass and electrolytic copper are satisfactory in the range of 0.000×-0.35%,and the coexisting foreign elements do not interfere the determination of phosphorous.
In the presence of EDTA a new method for the extraction separation of copper by using sodium chloride-sodium diethyldithiocarbamate-n-propanol system and simultaneously determining Mg,Al,Fe,Sb,Zn,Ag,Pb,Bi,Cr,Ni,Cd,Sn,Mn,As,Te,Se in the electrolytic copper has been established. The detection limits of the method were 0.001-0.036μg/mL.
In this paper,we studied the effect of additives Cl -,glue,(NH 2) 2CS on the cathodic copper deposition reaction in the electrolysis copper system of high bismuth by steady state method,and studied the effect of additives on the chemical composition and crystal orientation of the cathodic copper deposition by AA,SEM and XRD.
The operation for more than 4 years demonstrates that the integration process can make the copper-bearing industrial wastewater recycled and reused, with recovery of electrolysis copper over 100 t/a. It has favorable economic and social benefits.
Studying the positive plate quality,electrolyte composition,additive and manufacturing operation how to effect electrolytical copper quality in production process and finding the method to improve electrolytical copper quality.
Experimental and theoretical EPR spectra of nanodispersed copper synthesized by the reduction of copper dichloride in aqueous solutions, thin films of electrolytic copper, and copper ions are analyzed.
Characteristics of surface microprofile of electrolytic copper foil with high adherence to insulator
The anodic dissolution of iron-copper alloys in solutions of NaOH, NaCl and their mixture is studied in order to investigate the possibilities of obtaining electrolytic copper and iron hydroxides for the ferrite production.
Results of an experiment aimed at the detection of voids in small icosahedral particles of electrolytic copper are presented.
The catalytic properties, chemical composition, and morphology of the surface of electrolytic copper crystals promoted with phosphorus as catalysts of the partial oxidation of ethanol into acetaldehyde were studied.
A hypothesis for the relationship between the line-radiation intensity and the occurrence of a cathode copper-vapor jet affecting the mobility and dynamics of the spot and, in terms of them, the erosion has been proposed.
Influence of sulfur ions on the electrolytic preparation of loose cathode copper deposits
Melting cathode copper-A case study in process energy efficiency
Melting of cathode copper in the reverberatory, the electric are furnace and the Asarco shaft furnace is analyzed in order to evaluate specific capacity, process fuel equivalent and the energy efficiency for each process.
Experiments were carried out on 35 kg melts of doped cathode copper and anode copper in a 3 m3, 150 kW vacuum induction furnace.