The results from laboratory research indicated that the max rate of dry leaching is 4%;The rate of wet leaching of vitriol is higher than hydrochloric acid, when the concentration of vitriol is 40%, measuring Ratio of Solid to Liquid of serpentine and vitriol is 4:1.,and joined helper leaching agent: HF (The amount put in is 1.2%-1.5% of the 40% vitriol), the rate of leaching of magnesia could over 98%. After using ammonia to trash extraction, basic magnesium carbonate is acquired by ammonium hydrocarbonate.

經(jīng)過實驗室研究，干法氧化鎂的浸出率未超過4％黄私密在线看av；濕法硫酸的浸出率高于鹽酸人人摸人人干，在硫酸濃度為40％，硫酸與蛇紋石的液固比為4：1時办公室丝袜激情无码播放黄色工厂，加入助浸劑HF(加入量為40％硫酸質(zhì)量的1.2％-1.5％)后氧化鎂的浸出率為98％以上99r视频国产在线观看免费。

Effects of roast temperature, roast time, the amounts of sodium carbonate on decomposition of bastnaesite concentrate and effects of leaching temperature, leaching time, concentration of hydrochloric acid, the amounts of hydrochloric acid on leaching ratio of trivalent rare earth and tetravalent cerium was studied systematically.

系統(tǒng)地研究了焙燒溫度、焙燒時間和碳酸鈉的加入量對氟碳鈰礦精礦焙燒分解的影響及浸出時間国产精品久久久久影院色麻豆、浸出溫度A级片、鹽酸濃度和鹽酸用量對三價稀土和鈰的浸出率的影響。

Reefs, reef-mounds and lime mud mounds are all carbonate buildups, and the reefs and banks are important targets for petroleum exploration The reefs, banks and mounds should be divided from each other not only in theory, but also in exploration practice, because of so many differences in sedimentary compositions, fabrics, environments, distribution in time and space, and the characteristics of petroleum geology If the original reef or bank itself was fine reservoir rocks, then it would become a better reservoir after the reservoirconstructive diagenesis The formation of a high quality carbonate reservoir is controlled by two factors: the sedimentary microfacies and the reservoirconstructive diagenesis The first is the basis for the formation of a high quality reservoir, and with the high energy reefbank facies as the best; the latter includes the cataclasis, the dolomitization and the karstification The dolomitization and karstification are the best for the formation of a high quality reservoir The karstification has the widest distribution, profoundest effect, and plays a vital role in the high quality reservoir forming The karst types are quite rich in the limestone reef or bank reservoir, including synsedimentary karst, penesedimentary karst, supergene karst and hydrothermal karst, and so does the dolomitization reef or bank reservoir The formation mechanism of synsedimentary karst and penesedimentary karst is related to the short time exposing and leaching of the cyclical highfrequency shallowupward sequence when the reefs or banks are forming The supergene karst is controlled by the exposing and leaching of tertiary cyclic sequence type I interface after the reefs or banks forming Thus, there developed a great deal of secondary corrosion pores, corrosion fractures and huge caves besides some original pores remained in the reef and bank reservoir Scarcely there are any original effective pores in reefmounds and lime mud mounds, especially in senkes among mounds, but secondary pores could be formed by karstification, and there would likely develop source rocks with high organic abundance

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