Research on ion-exchange process of leaching vanadium from stone coal;
石煤提钒离子交换工艺研究
Effect of vanadium oxidation and conversion on vanadium leaching in extraction process of vanadium from stone coal;
石煤提钒过程中钒氧化和转化对钒浸出的影响
Research on ultrasonic extraction of vanadium from stone coal;
石煤中钒的超声浸取研究
Study on the Silicon Behavior in Oxygen Pressure Acid Leaching of Stone-coal;
高硅石煤氧压酸浸中硅的行为研究
In China,the extracting vanadium from stone-coal on the circs of investigation and the craft status quo were summarized in this thesis,and the traditional craft and the new craft of oxygen pressure acid leaching were contrasted.
综述了我国石煤提钒的研究情况和工艺现状,对目前我国石煤提钒传统工艺和改进工艺进行了分析评述,并介绍了氧压直接酸浸出提钒新工艺,提出了我国石煤提钒工艺应有的发展方向。
In this paper, radioactive pollution derived from the stone-coal related building materials of our country is analyzed.
对我国与石煤有关的建筑材料的放射性污染状况进行了分析。
The process of producing vanadium pentoxide from bone coal vanadium mine without salt roasting and acid leaching, was systematically studied.
系统地研究了石煤无盐焙烧酸浸生产五氧化二钒的工艺技术 ,提出了各工序的工艺条件。
In the course of extracting vanadium from bone coal, the bake temperature and addition agent are the important factors which a effect the immersion ratio of vanadium.
通过对石煤提钒焙烧阶段焙烧温度和添加剂作用、配比的研究，得出了焙烧阶段最适宜的焙烧温度、入炉温度和添加剂配比范围。
The process of vanadium extraction of bone coal ore,from a Mine in Shaanxi of China,is investigated.
研究陕西某石煤矿提钒工艺。
The State shall encourage coal mining enterprises to develop coal washing and processing as well as comprehensive exploitation and utilization of coalbed methane, gangue, coal slime, stone coal and peat.
国家鼓励煤矿企业发展煤炭洗选加工，综合开发利用煤层气、煤矸石、煤泥、石煤和泥炭。
The lime-stone rocks bed up against the coal.
石为岩层紧靠着煤矿层。
"fossil fuels: coal, oil, and natural gas"
矿物燃料(煤、石油、天然气)
extract (ore) from a strip-mine.
从露天煤矿中开发矿石。
Coal and oil are natural products.
煤和石油是天然物产。
Coal is primarily graphite.
煤从根本上说是石墨。
Talks of the Utilization of Spoil and Slime in Datong Coal Mine Group
同煤集团煤矸石及煤泥资源综合利用探讨
New Technique of Driving Cross-cut through Coal Seam with High Bursting Danger
高瓦斯突出煤层石门揭煤后过煤门新工艺
Discussion on technical reformation of recovery system of coarse clean coal and coarse middling in Laoshidan Coal Preparation Plant
老石旦洗煤厂粗精煤及粗中煤回收系统改造
South African Coal, Oil and Gas Corporation, Ltd.
南非煤炭、石油和煤气有限公司
Coal, oil,wood and gas are fuels.
煤炭，石油，木柴和煤气都是燃料。
National Resources: petroleum, gas, coal, chromium, nickel and copper.
自然资源：石油、煤气、煤、铬、镍和铜。
Gangue Generating Electricity Technology Alteration Project Research of the Group of Coal PAN;
攀煤（集团）煤矸石发电技改项目研究
Permo-Carboniferous Coalfield Coal-Control Structure Features in Hebei Province
河北省石炭—二叠纪煤田控煤构造特征
Talk About Pollutim Prevention and Use of Qianqiu Coal Nine Gangue Hill
千秋煤矿煤矸石山的污染防治与利用
Numerical approach on outburst in crosscutting in coal seam containing gas at Hongling coal mine
红菱煤矿石门揭煤突出过程模拟研究
Synthesis of β-SiC Micro-powder with Gangue or Silica and Anthracite;
煤矸石/石英砂与无烟煤合成β-SiC微粉研究
The Study of Coal Petrology and Coal Geochemistry in Permo-Carboniferous Coal from Datong Coalfield;
大同煤田石炭二叠纪煤的煤岩学和煤地球化学研究