碳化反应
- 网络carbonization;carbonation reaction
![碳化反应](../cache/1417655.jpg)
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研究了碳酸锂碳化反应动力学,利用气-液-固三相机械搅拌反应器,通过监测反应过程中CO2气体的压力变化与消耗情况,计算出反应速率,简化了分析步骤。
The kinetics of the carbonization reaction of lithium carbonate was studied . A gas-liquid-solid three-phase mechanical agitated reactor was used as the reactor .
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利用XRD、SEM等研究了电石渣的预处理方式、溶液的pH值对碳酸钙纯度和白度的影响,以及碳化反应温度、添加剂对针叶形碳酸钙形成的影响。
Effects of the pretreatment method of calcium carbide residue and the pH on the purity and the brightness of calcium carbonate , and the carbonization reaction temperature and the additive on the formation of needle-like aragonite , were investigated by XRD and SEM .
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Co对还原和碳化反应都具有催化作用。
Co had catalysis on the reduction and carburization reaction .
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同时还通过测定碳化反应过程中悬浮体系pH值和粘度随时间的变化规律,深入分析了碳化反应机理。
The carbonization mechanism was analyzed carefully by the change of pH and viscosity in carbonization process of suspension system .
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消化浆液中的氧化镁,在常压下与CO2在旋转床中进行碳化反应。
MgO in the slurry reacts with CO_ ( 2 ) in the rotating packed bed .
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从试验结果认为CO2先溶解于水成为碳酸是碳化反应的第一步。
It is found that dissolution of CO_2 into water to form carbonic acid is the first step of carbonation .
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采用pH、电导率在线跟踪和透射电子显微镜等手段考察了表面活性剂对碳化反应的影响和对碳酸钙结晶过程的影响。
The whole reaction process and crystallization process were tracked by on-line detection of pH value and electric conductivity of the reaction mixture .
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当复合材料素坯中含有活性填料Al时,由于Al与碳纤维发生碳化反应,使纤维受损,在纤维与基体之间形成不良的界面结合,导致复合材料的强度发生退化。
The flexural strength of the composites with active filler Al decreased drastically for the harmful interphase produced by the reaction between Al and carbon fiber , which was accordingly degenerated badly .
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钙矾石表面碳化反应对pco_2,pH_2O均为一级反应,反应的表观活化能为&39907J·mol ̄(-1)。
Carbonation on the surface of ettringite for both pco_2 and pH_O is the first-order stage , and the apparent activated energy is 39907J / mol.
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合成超微细CaCO3的非稳态碳化反应过程&Ⅱ.碳化速率与传质模型
The Unsteady State Carbonation Process in Synthesizing Ultrafine CaCO_3 Particles ──ⅱ . Carbonation Rate and Mass Transfer Model
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论文利用双膜理论和化学反应工程分析的方法,探讨了高浓度CO2生产超细碳酸钙的碳化反应各阶段的动力学区域、碳化反应机理和结晶原理;
The article uses " the Double-film Theory " and " Chemical Reaction Engineering Analysis " way to study the dynamic areas , crystal principle and its ' carbonized mechanics of all terms high concentration CO_2 to produce super-fine calcium carbonate .
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研究了WO3、Co3O4和石墨混合粉末经高能球磨活化后再分步进行还原和碳化反应制备超细WCCo粉末的过程。
Synthesis of ultrafine WC-Co powders was investigated using WO_3 , Co_3O_4 and graphite powders as starting materials by high energy ball milling followed by reduction and carburization .
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讨论了烧结温度对VC颗粒大小和分布的影响,在850℃固相烧结时,钒的碳化反应能够完成,而且VC颗粒不易长大,原位生成小于0.5μm的超细晶粒。
The effects of sintering temperature on the distribution and size of VC were discussed . The carburising reaction of V to form VC take place under solid phase sintering at 850 ℃, and the in-situ synthesis VC particulate is fine , so the size is smaller than 0.5 μ m.
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碳化反应破坏混凝土基体原有的过滤机制,并促进Friedel盐分解,使氯离子含量增多;
Carbonation action destroys the filter system of concrete matrix for chloride ingress , reduces the pH value inducing chloride from decomposition of " Friedel Salt ", which cause increasing of chloride concentration .
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实验结果表明,在超声场作用下,可以有效强化碳化反应,缩短反应时间,得到立方晶形或链形、粒径为30~40nm且粒度均匀的轻质碳酸钙。
The result shows that under the ultrasound , the carbonation reaction can be strengthened and the reaction time can be shortened . The cubic or chain light calcium carbonate with the well-distributed particle size of 30 ~ 40 nm can be obtained .
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探讨了粉料压坯快速完成钒的碳化反应和烧结致密化的机理,用MM200磨损试验机检测了碳化钒颗粒增强铁基表面复合材料的耐磨性。
The mechanism of vanadium quick carbonizing and composite powder fast sintering and compacting of the compressed block during casting was investigated . Wear resistance of V 8C 7 particle reinforced iron surface matrix composite was examined using MM-200 wear-test machine .
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碳酸锂碳化反应过程分析与机理探讨
Process analysis and mechanism discussion of carbonation reaction of lithium carbonate
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生产球形纳米碳酸钙新型碳化反应器开发研究
New carbonation reactor for the preparation of sphere-like nano-calcium carbonate
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在合成过程中,碳化反应是最为关键的一个步骤。
During the synthesis process , carbonization reaction is the key step .
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碳化反应区对混凝土碳化规律的影响
Effect of semi - carbonation zone on concrete carbonation model
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超细碳酸钙碳化反应条件的选取
The selections of carbonation conditions for the production of superfine calcium carbonate
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用双膜理论揭示了碳酸锂气、液、固三相碳化反应的规律。
The kinetics of the carbonization reaction of lithium carbonate was studied .
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粉煤灰水泥石碳化反应机理的研究
Study about the Mechanism of Carbonation Reaction of Hardened Flyash Cement Paste
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石灰乳碳化反应的热力学
Thermodynamics of Carbonization Reaction of Lime White
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碳酸锂碳化反应动力学研究
Kinetics of carbonization reaction of lithium carbonate
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有机胺法碳化反应处理氯化铵废液工艺研究
Study on the treatment of waste liquid containing ammonium chloride by organic amine carbonized reaction
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提出了焦煤的热解、碳化反应历程及其机理。
The reaction process and mechanism of pyrolysis and carbonization of caking coal were proposed .
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-你有做墨水的日期碳化反应吗?
- Did you carbon-date the ink ?
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超重力反应器中碳化反应参数对碳酸钙产品的影响
Effects of carbonation parameters on sedimentation specific volume of calcium carbonate particles synthesized in high-gravity reactor
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并对碳化反应速率及合成球形纳米碳酸钙的影响因素进行了分析。
The influencing factors of the speed of carbonization and composition of global nanometer CaCO_3 are studied .