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精干主体 分离辅体 放开实体
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作者 关欣 《理论与实践(贵州)》 1999年第1期16-17,共2页
阜新矿务局是在计划经济管理模式下形成发展起来的特大型煤炭企业,历史包袱沉重,经营机制不活。
关键词 分离辅体 精干主 产权制度改革 股份合作制 减少补贴 经营机制 阜新矿务局 经营方式改革 煤炭产量 职业教育
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理清发展思路 强化内部管理 让老企业尽快走出困境
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作者 关欣 《煤矿现代化》 1999年第2期22-23,共2页
阜新矿务局面对历史包袱重,经营机制不灵活,煤炭销售难,货款回收难等问题,他们在调整后的领导班子带领下,按照“精干主体,分离辅体,强化管理,扭亏增盈”的整体工作思路,抓大矿放小矿,分离生活、后勤、文教、卫生等地面辅助单位,加强内... 阜新矿务局面对历史包袱重,经营机制不灵活,煤炭销售难,货款回收难等问题,他们在调整后的领导班子带领下,按照“精干主体,分离辅体,强化管理,扭亏增盈”的整体工作思路,抓大矿放小矿,分离生活、后勤、文教、卫生等地面辅助单位,加强内部管理,深挖节支降耗潜力,最终使企业步入了良性发展轨道,实现了扭亏增盈。 展开更多
关键词 分离辅体 强化管理 扭亏增盈 阜新矿务局
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Novel Gas-assisted Three-liquid-phase Extraction System for Simultaneous Separation and Concentration of Anthraquinones in Herbal Extract
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作者 杨兴福 梁向峰 +3 位作者 杨良嵘 潘峰 邓伏礼 刘会洲 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2014年第9期968-973,共6页
Gas-assisted three-liquid-phase extraction(GATE), which has the advantages of both three-liquid-phase extraction and solvent sublation, is a novel separation technique for separation and concentration of two organic c... Gas-assisted three-liquid-phase extraction(GATE), which has the advantages of both three-liquid-phase extraction and solvent sublation, is a novel separation technique for separation and concentration of two organic compounds into different phases in one step. This highly effective and economically applicable method has been developed for separating emodin and rhein from herbal extract. In a GATE system composed of butyl acetate/PEG4000/ammonium sulfate aqueous solution, influence of various parameters including gas flow rate, flotation time, salt concentration, initial volume of PEG and butyl acetate was investigated. Within 50 min of 30 ml·min-1nitrogen flow, removal ratio of emodin and rhein from aqueous phase could be over 99% and 97%, respectively.Mass fraction of emodin in the BA phase and rhein in the PEG phase could reach 97% and 95%, respectively. It is demonstrated that gas bubbling is effective for partitioning of emodin and rhein into butyl acetate and PEG phase respectively, and dispersed PEG and butyl acetate could be captured from the aqueous solution. Experimental results show that GATE could be an effective and economical technology for concentration and separation of co-existed products in medicinal plants. 展开更多
关键词 Three-liquid-phase extractionGas-assisted solvent extractionSeparationAnthraquinones
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