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常规浮选
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  conventional flotation
     The separation of artificial mixed minerals, consisting of cassiterite (—5 μm 14.60%Sn) and quartz (—10 μm) resulted in the increase of tin recovery from 51.78% of conventional flotation to 95.77% (with cerussite as carrier) and 85.08% (with cassiterite as carrier).
     对原矿品位为14.6%的锡石(-5μm)—石英(-10μm)人工混合矿,载体浮选在精矿品位略有提高的情况下,锡精矿回收率可从常规浮选的51.78%提高到95.77%(白铅矿做载体)和85.08%(锡石做载体)。
短句来源
     For artificial mixtures of ultrafine wolframite (-5μm) and quartz(—10μm) with the head grade (WO_3) of 12.18%, the concentrate grade (WO_3) and recovery of wolframite in shear-flocculation flotation are 39.29% and 82.56% respectively, instead of 30.14% and 58.92% respectively in conventional flotation.
     对于原矿品位(WO_3)为12.18%的黑钨矿(-5微米)—石英(-10微米)人工混合矿,剪切絮凝浮选可使精矿品位(WO_3)由常规浮选的30.14%提高到39.28%,回收率由常规浮选的58.92%提高到82.56%。
短句来源
     For ultrafine wolframite particles(—5μm), the recovery of wolframite in shear-flocculation flotation is 80%, instead Of 50% in conventional flotation.
     对于-5微米黑钨矿纯矿物,剪切絮凝浮选可使其浮选回收率由常规浮选的50%提高到80%;
短句来源
     Comparison between deep-cleaning and conventional flotation results denoted that,at approximately same concentrate ash,its yield by deep-cleaning was 46.06 percent point higher,and at similar yield,its concentrate ash,1.78 percent point lower.
     比较深度浮选和常规浮选试验的结果表明:在精煤灰分接近的情况下,深度浮选的精煤产率要高出46.06%,在精煤产率接近时,深度分选的精煤灰分要低1.78%.
短句来源
     There is a refractory gold mine with carbon- and sulfur-rich in Sichuan,obtained gold grade from its ores is only 25g/t when using conventional flotation.
     四川某金矿为高硫含碳微细粒难选金矿,常规浮选所得精矿金品位只有25g/t左右。
短句来源
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  routine floatation
     Experimenting to Irradiation with Microwave——Routine Floatation on Hard-Dressing Copper Oxide Ore in Tangdan of Dogchuan
     东川汤丹难选氧化铜矿微波辐照——常规浮选实验
短句来源
     Due to the use of amine collector, the double reverse floatation flow had overcome the shortage of heating in the routine floatation of phosphorus, and its drug cost was relatively low.
     双反浮选流程由于使用了阳离子胺类捕收剂,一定程度上克服了胶磷矿常规浮选需要加温的缺点,并且药剂成本较低。
短句来源
     Comparing with routine floatation,magnetic field can strengthen the depression of pyrite. And magnetic field can increase the absorption of the depressor CK on the surface of pyrite,and increase the hydrophilicity of pyrite.
     与常规浮选相比较 ,磁场可强化对黄铁矿的抑制作用 ,促进抑制剂 CK在黄铁矿矿物表面的吸附 ,增加矿物表面的亲水性
短句来源
  “常规浮选”译为未确定词的双语例句
     Under the conditions of pH 6.8, PAA-5 dose of 1mg/L and oleicacid dose of 100mg/L,flocculation-flotation separation of flocs of-20μm wolframinequartz mixture was carried out ,resulting in tungsten concentrate grade of 68. 48%WO_3 andrecovery of 91. 31%.
     在pH6.8,PAA-51mg/L,油酸钠100mg/L的条件下进行了-20μm黑钨矿-石英混合矿的絮团浮选分离,获得了钨精矿品位68.48%WO_3.回收率91.31%的分选指标,显著优于常规浮选的分离效果
短句来源
     Concentrate yield and recovery are respectively increased 11.30% and 20.49% and concentrate grade is increased about 2% than traditional floatation untreated by electrochemistry.
     较之未经电化学处理的常规浮选,其精矿产率γ、回收率ε分别提高11.30和20.49个百分点,精矿品位提高近2个百分点
短句来源
     This paper introduces the Packed Flotation Column, development prospect abroad.
     通过充填式浮选柱与常规浮选机的对比,阐述了充填式浮选柱的优越性及其发展前景。
短句来源
     To the characteristics of packed flotation column, the dissertation investigates theindex degree and gas-flow in the packed floatation column.
     进行了常规浮选工艺与充填式浮选工艺的对比,并对充填式浮选柱浮选特性进行了柱内品位梯度和流态的探索研究。
短句来源
     Results show that, on the basis of bulk flotation of copper-nickel sulfides in alkaline medium, by one-stage grinding and preliminary rougher, regrinding the roughing concentrate, and two-time cleaners, together with conventional reagents and combined use of reagents, following results in laboratory close circuit can be obtained: the grade of nickel, copper and magnesia in run of mine ore is 0.690%, 0.411% and 27.40% respectively;
     试验表明:在碱性介质铜镍混合浮选的基础上,采用一磨一选,粗精矿再磨,两次精选,常规浮选药剂及其适宜组合等工艺技术措施,可获得如下小型闭路指标:原矿品位Ni0.690%,Cu0.411%,MgO27.40%;
短句来源
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  conventional flotation
Ultrasound was applied to recycled pulp fiber suspension before ink removal by conventional flotation.
      
The process, which consists of ultrasonic treatment for 1 min following flotation deinking, requires about 1.4 times as much energy as the conventional flotation deinking process, but it induced 20% improvement in brightness.
      
Yet, conventional flotation devices do not generate a sufficient number of bubbles smaller than 600 lm.
      
Any remaining ink is removed during a conventional flotation step.
      
Columns offered a solution, or at least an improvement, with respect to some of the problems encountered with conventional flotation cells.
      
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The L-P-CF process developed by the authors consists of 1)leaching refractory copper ore or middling by H_2SO_4,2)chnging Cu~(++)into colloidal copper sulphide precipitate and 3)carrier-flotation by using a high-grade Cu concentrate for adsorbing and carrying the fine copperish particles.Experiments on several kinds of Cu ores have been made and quite satisfactory results have been obtained in our laboratory. For example,an ore sample from Dongchuan Copper Mine,was floated to yield a high-grade concentrate and...

The L-P-CF process developed by the authors consists of 1)leaching refractory copper ore or middling by H_2SO_4,2)chnging Cu~(++)into colloidal copper sulphide precipitate and 3)carrier-flotation by using a high-grade Cu concentrate for adsorbing and carrying the fine copperish particles.Experiments on several kinds of Cu ores have been made and quite satisfactory results have been obtained in our laboratory. For example,an ore sample from Dongchuan Copper Mine,was floated to yield a high-grade concentrate and a middling.Then,the middling was treated with the L-P-CF process,using the concentrate as carrier.A final concentrate grade of 22.5% Cu and a recovery of 81.5% were achieved,which exceeded those obtained by conventional flotation process by 4-5% and 7-8% respectively.Another sample assay- ing 2% of Cu from Dayie Copper Company,yielded a concentrate with an assay of 24.9% Cu and recovery of 81.2% through the L-P-CF process,while the conventional flotation process only gave a concentrate grade of 15% Cu and a recovery of 35%. It is believed that the L-P-CF process may have some advantages over the other chemical processes for Cu ores,e.g.:1)it does not involve any solid-liquid separation in the process;2)no extractants,ion-exchangers or sponge iron are needed,3)flotation is performed in neutral or weak acid pulp;4)precious metals,such as Au,Ag,can be recovered together with Cu;5)flotation process can be greatly improved by using Cu concentrate as carrier,which is available to any plant and does not need regene- ration and reuse;6)using CaS as a precipitant of Cu~(++)and CaCO_3 for neutralizing free acid may provide favourable conditions for treatment of waste water.

本文提出的浸出—沉淀—载体浮选法(简称LPCF法)用以处理硅铝型、钙镁型和铁锰型的难选铜矿石和中矿取得了较好结果。精矿品位高于20%,铜回收率比常规浮选法高6~40%。在我国,用选冶工艺处理难选铜矿石的研究,已进行了多年,由于若干重大技术经济问题尚未解决,用于生产的为数不多。我们的研究目的是在前人研究成果的基础上,寻求一种易于工业化的难选铜矿石的化学选矿方法。浸出—沉淀—载体浮选法,对三种不同类型的难选铜矿石及其浮选中矿进行小型试验,获得了较好的结果。

Carrier flotation of -5μm wolframite is studied in the paper and a corn- parison with conventional fletation in the same condition is made.The car- riers added are coarse minerals of different size wolframites of more than 10μm.It is found that with the addition of coarse carrier particles,the recov- cry of -5μm wolframite is obviously improved because “Collision-Adhesion” between the hydrophobic fine particles and carrier particles leads to an in- creasein flotation rate of the fine particles under the turbulence...

Carrier flotation of -5μm wolframite is studied in the paper and a corn- parison with conventional fletation in the same condition is made.The car- riers added are coarse minerals of different size wolframites of more than 10μm.It is found that with the addition of coarse carrier particles,the recov- cry of -5μm wolframite is obviously improved because “Collision-Adhesion” between the hydrophobic fine particles and carrier particles leads to an in- creasein flotation rate of the fine particles under the turbulence condition and that the “Collision-Adhesion” process is controlled by relevant parameters in geometry,physics and chemistry.

本文研究了-5微米粒级黑钨矿的载体浮选,并与同条件下的常规浮选作了比较.所加入载体为大于10微米的不同粒级黑钨矿。发现加入粗粒载体后明显地提高了-5微米粒级的回收率,其原因主要是在强烈的湍流状态下疏水性颗粒之间的“碰撞—粘附”,从而提高了微细粒级的浮选速率,而“碰撞—粘附”过程又受到有关几何、物理、化学因素的互相制约。

Two-liquid flotation of - 5 μm cassiterite was studied in this paper and a comparison with conventional flotation in similar condition was made. It was shown that two-liquid flotation exceeded froth flotation, and that a 99.3% recovry of cassiterite could be achieved and the tin concentrate contained 90.0% of SnO_2. It was discovered that surfactant played three kinds of role in two-liquid flotation: (1) to make mineral particles hydrophobic; (2) to make the oil phase emulsive: (3) to influence the electrokinetics...

Two-liquid flotation of - 5 μm cassiterite was studied in this paper and a comparison with conventional flotation in similar condition was made. It was shown that two-liquid flotation exceeded froth flotation, and that a 99.3% recovry of cassiterite could be achieved and the tin concentrate contained 90.0% of SnO_2. It was discovered that surfactant played three kinds of role in two-liquid flotation: (1) to make mineral particles hydrophobic; (2) to make the oil phase emulsive: (3) to influence the electrokinetics of the surface of an oil drop. Zeta potential of the surface of an oil drop was larger than that of the surface of a mineral particle, which was an important affection factor~-in two-liquid flotation. The reasons why two-liquid flotation was superior to froth flota- tion were that: (1) oil / water interface produced in two-liquid flotation was larger than gas / water interface produced in froth flotation, thus the collision chance and adhesion areas between fine particles and oil drops were increased; (2) Hamaker constant between an oil drop (iso-octane) and a hydrophobic cassiterite particle was over 1000 times larger than that between a bubble and hydrophobic cassiterite particle, so that an oil drop was more favorable than a bubble for the adhesion of hydrophobic cassite- rite particles.

本文研究了-5微米锡石的两液浮选,并与相应条件下的常规浮选进行了比较。结果表明,两液浮选工艺优于泡沫浮选,锡石回收率可达99.3%,精矿含90.0%SnO_2。研究发现,捕收剂在两液浮选中起着三重作用:(1)使矿粒疏水;(2)使油相乳化;(3)影响油滴表面电性。油液表面的ζ-电位负值比矿粒-溶液间的ζ-电位还大,是两液浮选中的一个重要影响因素。两液浮选比泡沫浮选优越的原因:(1)两液浮选中产生的油/水界面较大,提高了细粒矿物的碰撞几率和附着面积;(2)油相体系的Hamaker常数比气相体系的Hamaker常数大,因而油滴比气泡更有利于疏水矿粒的粘附。

 
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