The pre-treatment of them before conventional cyanide leaching includes roast, chemical oxidation and biological oxidation.
在传统氰化浸出之前进行的预处理过程包括焙烧，化学氧化和生物氧化。
The Company is mainly engaged in carbon fiber, aramid fiber and fiber, such as pre-oxidation products processing enterprises.
本公司主要是从事碳纤维、芳纶纤维及预氧化纤维等制品的生产加工企业。
Taking copper sulphide mineral as study objects, the studies of chalcopyrite heating and pressure pre-oxidation leaching process were conducted in acid system adding chloride.
以硫化铜矿物为研究对象，在添加氯盐的酸性体系中，开展了黄铜矿加温、加压预氧化浸出过程研究。
Bacterial pre-oxidation refractory gold ore has showed many advantages, such as low operation cost and environment friendly.
细菌氧化预处理难浸金矿由于其环境友好成本较低，受到越来越多的重视。
Methods:The surface of pure titanium specimen was modified by a compound method of pre-anodic oxidation and hydro-deposition.
方法：采用预阳极氧化及水热沉积复合法对纯钛试件进行生物改性。
Jar test was conducted to evaluate the effect of humic acid on residual manganese of permanganate pre-oxidation process.
烧杯搅拌试验表明，水中腐殖酸对高锰酸钾预氧化工艺的剩余锰浓度有重要影响。
To research on the effect of Baishi reservoir slight-polluted source water under the potassium permanganate and podium hypochlorite pre-oxidation, and to provide credible parameters.
目的研究次氯酸钠和高锰酸钾联合预氧化白石水库微污染水的效果，为自来水厂工程设计提供可靠的参数。
The results of ozone pre-oxidation and conventional process treating slightly-polluted source water showed that this unit could reduce effectively COD_(Mn), color and turbidity.
方法采用臭氧预氧化与常规处理联用工艺对微污染水源水进行了中试试验，研究了高锰酸盐指数、浊度、色度的处理效果。
The reasons for tar formation from polyacrylonitrile-based carbon fiber were analyzed from the structure and the production line, from as-spun fiber, pre-oxidation to carbonization.
根据聚丙烯腈基碳纤维生产工艺路线，从原丝、 预氧化、碳化工艺及结构上分析了聚丙烯腈基碳纤维焦油形成的原因。
Theremoval ability of microcystin in algae blooming reservoir water bycongulation and chlorine dioxide pre-oxidation is proved to be limited.
实验室研究表明：混凝和二氧化氯预氧化去除毒素的能力有限；
The coagulation-supporting effect of the pre-oxidation of sodium permanganate in the process of coagulation was studied.
研究了高锰酸钠预氧化对混凝过程的助凝作用。
Papermaking wastewater was treated by process of pre oxidation coagulating sedimentation in the study.
采用预氧化混凝沉淀法处理制浆造纸废水。
The primary factors affecting the structure and properties of the resulted fibers during pre-oxidation included pre-oxidation temperature and time and draw ratio.
指出预氧化过程中影响纤维结构与性能变化的主要因素有预氧化温度、预氧化时间和对纤维的拉伸倍数等。
However, when the technology of bacterial pre-oxidation and cyanide leaching for flotation concentrate of gold is used, the leaching rate of 92.73% is reached.
对浮选金精矿采用细菌预氧化—氰化浸出工艺，金浸出率可达到92.73%。
However, when the technology of bacterial pre-oxidation and cyanide leaching for flotation concentrate of gold is used, the leaching rate of 92.73% is reached.
对浮选金精矿采用细菌预氧化—氰化浸出工艺，金浸出率可达到92.73%。
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