the paper introducedeffects of modified pyrolysis tar on flue gas desulfurization. this experiment selected the pyrolysis tar as the raw material, researched the effects on desulfurization performance under different modification solution, concentration, solid liquid ratio of pyrolysis tar and modified solution, calcination temperature and calcination time by 16 group orthogonal experiments. th...

Leaching mechanism of zinc oxide is important not only to understand zinc smelting process but also to develop of new zinc recycling process. Recycling of zinc is mainly done by treatment of electric arc furnace dust (EAF dust). In Japan pyro metallurgical process is enhanced for EAF dust treatment, however only zinc oxide can be recovered by pyro metallurgical process. Hydro metallurgical proc...

In copper heap leaching structures, the ore is leached by an acidic solution. After dissolving the ore mineral, the heap is drained off in the acidic solution using a drainage system (consisting of a network of perforated polyethylene pipes and gravelly drainage layers) and is, then, transferred to the leaching plant for copper extraction where the copper is extracted and the remaining solution...

The paper introducedeffects of modified pyrolysis tar on flue gas desulfurization. This experiment selected the pyrolysis tar as the raw material, researched the effects on desulfurization performance under different modification solution, concentration, solid liquid ratio of pyrolysis tar and modified solution, calcination temperature and calcination time by 16 group orth...

Capsaicin evokes a membrane current in trigeminal ganglion neurons that is increased substantially in a moderately acidic extracellular environment. Using excised outside-out membrane patches, we studied the mechanism by which protons enhance the sustained response to capsaicin. In the absence of capsaicin, extracellular exposure to a moderately acidic physiological solution (pH 6.6) did not re...

Mice were given single injections of HN2 solution at pH 8 or pH 2. The alkaline preparation had an LDM of about 2 mg/kg while that for the acidic preparation was about 5 mg/kg. A simi lar difference in toxicity was seen when the HN2 w:asgiven as a series of small daily doses. The greater toxicity of the alkaline preparation was manifest also in the hématologie findings, and in the earlier deat...