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Recovery of chlorine from the waste gas


mZ,[link widoczny dla zalogowanych], except to the decomposition voltage, the ion exchange membrane resistance and anode resistance Xu {drop down are two very major factor. Current density than 50A/din. After leaving the slow cathodic reaction intensity curve of a current voltage gradient becomes large. Current efficiency of chlorine is 92 to 98 (mean 95). Almost all of the electrolytic current practice by the H, and only about 1 electrolytic current from Cu liquid separation, and then cooled. anode and cathode fluid liquid back to pump the electrolyte into the tank part of the absorber, the exhaust gases are chlorine, cuprous chloride, copper chloride to be oxidized. from cyanide out of the inert gas in the absorber After washing again before the purge. the system operating temperature of 5O ~ 7O ℃. temperature, the more providers, the lower the cell voltage. The problem of water balance in the system determined by the operating temperature. The total current efficiency of chlorine average 95o DC power consumption of oxygen by the electrolysis current density of photo system recovery process Ge Mao-chang ∞ ∞ l song 0O0O0000O0556; l100000O0 ■ t lodging of rice in Japan to prevent the progress of the new method of Zhang Xu, technology continues to progress with the rice, Japanese rice yield per unit area increased year by year. However, in the process of rice, as often encountered adverse weather conditions and the amount of fertilizer application on continuously Dan, the lodging of rice each year suffer the same problems, the victim of rice around very wide hoops. by Zuo Feng Kai Chi (1960 ) report, the northeast of Japan in 1958. Hokuriku about 40% of the paddy fields where lodging occurred, Kanto, Higashiyama Jiner Cheng rice lodging, for a total of 49 million hectares, 214,000 tons of rice production cuts since the sixties l popularization of semi-dwarf as stalk of rice varieties, although not complete solution Jue lodging problems, but at least once fed crop-full cut due to be eased; into the eighties, the lodging has become more serious trouble, according to Japanese Research Society of Plant regulation of small Shu Jing Jue report, the annual lodging occurred in 1984 the area sown area of ​​about 20, to 400,000 public and plaque, in recent years as the decline in per capita consumption of rice, the Japanese demand for quality rice, especially strong, according to Ministry of Agriculture survey in 1987, high-quality rice variety about 2 times the year before. Lodging resistance of the quality varieties generally not strong, so they are rapidly expanding to the lodging problem has become increasingly prominent on the other hand, in the super high breeding and cultivation process,[link widoczny dla zalogowanych], although some fine bred high-yielding varieties, such as 1981 Eddy County, New enter can not be counted as true super high, but they are a lot of fertilizer and mature in case of rain during the attack, is still inevitable to a large area which led to a reduction in the lodging (Chen Hung Bank, 1988) * hide this, the same rice lodging Japanese rice is more and more questions are the concern of e rice producers lodging occurred due to direct damage is down to maturity and lower grain quality} Q then is to increase the health damage due to harvest losses of prayer as a result of too much water The extension of the grain drying time and low cost in rice cultivation in Bong harvesting and drying shut because of the increase in the cost increase. Lodging is mainly generated internal section of stem with the composition between the degree of cell voltage and operating temperature, usually 890 ~ ​​950KWH / t cl2. Due to the need for pumping and gas purge, it also needs to consume some of the AC. As the system for the small pilot plant, and a lower terminal voltage rectifier,[link widoczny dla zalogowanych], so the converter rectifier system more efficient than a modern chlor-alkali electrolyzer system with low number of assumptions, including rectifiers, transformers and other auxiliary devices,[link widoczny dla zalogowanych], including the entire power supply system The total efficiency of 85 to 87%, then the consumption of the AC electrolysis is about 1050 ~ I120KWH / t Cl, o26, according to Japan TsukishimaKiai company accounts, if the Click method of production and production capacity of 1 ton / day, per ton of chlorine the cost of production capacity is about 53,000 yen 8 Dun I / day, per ton of chlorine is about 43,[link widoczny dla zalogowanych],000 yen production cost. This level comparable with the brine electrolysis. (It should be noted that: Although the cost of production increases with plant capacity is reduced, but if the production capacity of more than 5 tons / day, the whole cell structure design and plant layout have to be reconsidered.)
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