Vol 5, No 1 (2021)

Table of Contents


59 Views, 14 PDF Downloads
Junmin Li


Compared with the previous self-cultivation anode electrolyzer, the current prebaked anode electrolyzer has advanced technical and economic indexes, high degree of mechanization and automation, and relatively little environmental pollution, which has achieved great development. However, the continuity of aluminum electrolysis production and the limited economic height of anode constitute two contradictory opposites. In order to solve this contradiction, the processes of replacing anode periodically, cleaning the residual electrode and electrolyte, pressing off the residual electrode and phosphorus-iron ring, crushing and grinding the residual electrode have been produced, which has increased the investment and labor cost per ton of aluminum. Moreover, when the anode is replaced, the operator can say that the working environment is harsh and dangerous directly in front of the high-temperature electrolyte, and a large amount of fluorine-containing flue gas is discharged out of order and pollutes the environment due to the opening of the slot cover plate and the placement of the high-temperature residual electrode during the anode replacement. At the same time, pole change has great interference on electrolytic production. At present, inert anodes can't be put into industrial production, and the continuous preparation anodes in Germany have high power consumption, so it is of great practical significance to perfect or improve the existing anode structure. This paper discusses how to solve this problem.

51 Views, 15 PDF Downloads
Reling Shen


Atomic absorption spectrometry has the characteristics of very high accuracy. In order to find out the factors that affect the detection, it is necessary to analyze the silver content in copper concentrate, which is conducive to the detection of the real existence of silver and other elements in copper concentrate. This paper briefly describes the atomic absorption spectrometry method of silver in copper concentrate.

44 Views, 10 PDF Downloads
Yuan Bin


In the specific smelting process of non-ferrous metals, hydrometallurgy technology is widely used in this field and plays an important role. Modern hydrometallurgical technology covers a wide range of fields. Except for steel, other related non-ferrous metals can be refined by this method. It has great adaptability in many fields. This article briefly introduces the pressurized hydrometallurgy technology in zinc smelting, hoping to bring some inspiration to everyone.

34 Views, 7 PDF Downloads
Qingyu Feng


Content Sheet Tobacco Dryer is an important and key equipment in the tobacco making workshop of cigarette factory, its function is mainly to expand and dry cut tobacco, and the drying process is mainly carried out by the sheet heating plate in the drum through heat conduction, while the energy of the sheet heating plate mainly comes from the steam inside, and there is a risk of leakage through continuous operation of the sheet and its accessories, once leakage occurs, it will cause quality accidents of tobacco products, and leakage can be well prevented and eliminated through regular leakage detection.

50 Views, 11 PDF Downloads
Xia Zhao


This method established an inductively coupled plasma emission spectrometry method to determine the contents of zirconium, niobium, iron, nickel, copper and manganese in uranium and uranium alloy through the sample pretreatment, sample weighing, dissolution method, uranium separation method, interference test between coexisting elements, precision and recovery test. This method separated the uranium matrix, and avoided the influence of uranium matrix on zirconium, niobium, iron, nickel and manganese.


Cookies Notification