By means of examination in the laboratory and search of the literature and datum from home and abroad,some techniques and methods of extracting valuable elements from coal gangue and manufacturing high-attaching value chemical engineering products by using coal gangue were summarized.
通过实验室研究和对国内外文献资料的调研,综述了从煤矸石中提取有价元素及利用煤矸石深加工制造高附加值化工产品的技术和方法。
And extracting valuable elements from coal fly ash is an important way of improving comprehensive utilization of it.
粉煤灰的综合利用是目前我国煤炭工业的一件大事,而从粉煤灰中提取有价元素是提高粉煤灰综合利用价值的重要途径之一。
Calcination-microwave acid leaching combination process was used to strengthen the leaching of valuable elements in fly ash.
采用焙烧-微波场酸浸联合工艺,强化粉煤灰中有价元素的浸出。
Discussion on the recycling and reusing of valuable metals from spent batteries;
废旧电池中有价金属回收利用探讨
Recovering Valuable Metals from Red Mud Generation during Alumina Production;
从赤泥中综合回收有价金属工艺的研究进展
According to properties of intermediate material in the zinc system and characteristics of the technological process, the paper proposes the ways and methods for comprehensive recovery of valuable metals like zinc, copper, cadmium, cobalt and silver, etc.
根据锌系统中间物料的特性及工艺流程特点 ,提出综合回收锌、铜、镉、钴及银等有价金属的途径及方法 ,并对综合利用的投资与效益进行了分
The paper analyzed the current situations of metallic resources and nonferrous metallurgical waste slag in China,and put forward the viewpoint that valuable metal recovery from nonferrous metallurgical waste slag is an important part of sustainable development of metal resources in China,and the concept of comprehensive utilization of nonferrous metallurgical slag in multiple way at multi levels.
分析了我国金属资源及有色冶金废渣现状,提出有色冶金废渣中有价金属的综合回收是我国有色冶金、金属资源可持续发展的必然选择,同时提出多层次、多元化综合利用有色冶金废渣的概念,文章还介绍了我国有色冶金废渣中回收有价金属的主要技术。
The dynamic model of valuable metals by microbe catalysis leaching under anaerobic condition,that is the shrinking core model,was established using the DLVO theory.
为了直观地表征大洋多金属矿微生物浸出过程中各因素的相互关系,进行了微生物催化MnO2-FeS2-H2SO4体系的好氧和厌氧浸出实验,利用DLVO理论建立厌氧条件下微生物催化浸出氧化锰矿物中有价金属的动力学模型——收缩核模型。
This paper proposes a new classifying method of industry waste facing th e status quo of industry waste containing valuable metal in China.
针对目前国内工业废料含有价金属的现状,提出新的分类方式,并按其不同,采用不同的处理方法,旨在探索一条较好地处理和回收工业废料的途径。
Optimization on bioleaching of metal values from Pb/Zn smelting slag;
Pb/Zn冶炼废渣中有价金属生物浸出条件优化
The paper presents a concept of security assets holding_value, which can be used to measure the gain potentiality of a given security which in a given time_range.
文中提出,某段时间内证券资产的持有价值包含投资价值和投机价值,它可以用这段时间内所持有证券的净增值潜力来衡量。
So Chinese business banks all applied their fond to securities,which has higher interest but lower risk.
中国银行业纷纷将资金运用重点转向利息高而风险相对较低的有价证券。
The objective aspects in crime of defraud of securities manifest a few defraud actions,such as using forged or deformed treasure bills and other securities issued by the nation.
有价证券诈骗罪在客观方面表现为使用伪造、变造的国库券或者国家发行的其他有价证券进行诈骗活动,其行为有伪造、变造、虚假权利质押、恶意买卖、冒用、空买空卖等不同的方式,犯罪使用之物也包含虚假的地方政府债券、金融债券、国家有价证券、外国有价证券众多形式,颇为复杂。
virtual property is a virtual documents of obligation similar to bearer securities.
虚拟财产在性质上是一种类似于无记名有价证券的虚拟债权凭证,具有证权一体性和无因性。