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hydrate
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  水合物
    The process and kinetics of CH4 replacement from CH4 hydrate formed in sodium dodecyl sulfate(SDS) system by using pressurized CO2 was observed with a self-designed device at temperatures of 271.2, 273.2 and 276.0 K and at pressures of 2.8, 3.25 MPa.
    在自行设计的反应装置中考察了2.8MPa和3.25MPa压力下,温度271.2、273.2和276.0K时CO2气体置换十二烷基硫酸钠(SDS)体系CH4水合物中CH4的置换过程。
短句来源
    Experimental data showed that the decomposition rate of CH4 hydrate was faster in the first 50 hours than the later time.
    实验数据表明,在反应的前50h,CH4水合物的分解速率较快,其后分解速率变慢。
短句来源
    Based on the rate data, kinetic models were developed for CH4 hydrate decomposition and CO2 hydrate formation.
    基于动力学数据,建立了SDS体系置换反应过程中CH4水合物的分解动力学模型和CO2水合物的生成动力学模型。
短句来源
    In the process of CH4-CO2 replacement in the hydrate, the activation energies were,calculated 28.81 kJ·mol-1 for CH4 hydrate decomposition and 68.40 kJ·mol-1 for CO2 hydrate formation respectively.
    计算得到CH4-CO2置换反应过程中CH4水合物的分解活化能为28.81kJ. mol-1,CO2水合物的生成活化能为68.40kJ.
短句来源
    STUDIES ON GAS HYDRATE PHASE EQUILIBRIA FOR SYSTEMS CONTAINING SALTS AND METHANOL Ⅱ.Prediction of Theoretical Model
    含盐和甲醇体系中气体水合物的相平衡研究 Ⅱ.理论模型预测
短句来源
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  水合
    Study On the preparation of 3,3′-dichlorobenzidineby reduction reaction between formaldehyde and hydrazine hydrate
    甲醛-水合肼还原法制备3,3′-二氯联苯胺
短句来源
    The Derivative of Hydrazine Hydrate and its Application
    水合肼的衍生物及其应用
短句来源
    The Studies on the Reaction of 3,4 Diacetyl 2,5 hexanedione with Substituted Phenylamine and Hydrazine Hydrate
    3,4-二乙酰基-2,5-己二酮与取代苯胺及水合肼的反应
短句来源
    Summary of Technical Transformation of Hydrazine Hydrate Refining Process
    水合肼精制工艺技改总结
短句来源
    The Derivative of Hydrazine Hydrate and its Application
    水合肼的衍生物及其应用(续完)
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  “hydrate”译为未确定词的双语例句
    The Application and Synthesis of Modified Calcium Aluminate Hydrate Flame Retardant
    阻燃剂铝酸钙的应用及合成
短句来源
    STUDY ON KINETICSOF REACTION BETWEEN IRON PORPHYRIN AND HYDRAZINE HYDRATE BY STOPPED-FLOW METHOD
    停流分光光度法研究铁卟啉与肼反应动力学
短句来源
    Diethylene glycol butylmethyl ether(DGBME) was synthesized through Williamson Reaction with diethylene glycol mono-methyl ether(DEGME) and butyl bromide(n-C4H9Br) as starting materials at the atmosphere of N2,hydrate sodium as catalyst and benzene as water carrier,its synthetic condition was optimized by orthogonal experiment.
    在氮气保护下,以二乙二醇单甲醚(C5H12O3,DEGME)和正溴丁烷为(n-C4H9Br)原料,氢氧化钠为催化剂,苯为带水剂,通过Williamson反应合成了二乙二醇甲基丁基醚(DGBME);
短句来源
    Modification of Interface and Mechanical Properties of PP/Magnesium Hydrate Whisker/POE Composite
    PP/M-HOS/POE三元复合材料的界面改性与力学性能
短句来源
    Study on the cyclic reaction between 1-benzoyl-3-arylthiourea and hydrazine hydrate
    1-苯甲酰基-3-芳基硫脲与肼的成环反应研究
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  hydrate
2,5-Bihydrazino-1,3,4-thiadiazole (2) was synthesized by condensation of 2,5-bimercapto-1,3,4-thiadiazole (1) with hydrazine hydrate, and compound 2 reacted with acyl chloride to give 2,5-biacylhydrazino-1,3,4-thiadiazole derivatives (3a-3e).
      
Gas hydrate is a recently-found new source of energy that mostly exists in marine sediments.
      
In recent years, we have conducted gas hydrate exploration in the South China Sea.
      
The Xisha trough, one of the promising target areas for gas hydrate, is located in the northern margin of the South China Sea, adjacent to several large oil and gas fields.
      
These geochemical anomalies are quite similar to those found in gas hydrate locations in the world such as the Blake Ridge and may be related to the formation and dissociation of gas hydrates.
      
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A new method to perform the reduction and hydrogenation through the catalytic transfer hydrogenation reaction is presented. It uses modified Raney Ni and Pd-C as catalyst, hydrazine hydrate as hydrogen donor, 3, 3' -dinitro-4, 4' -diaminodiphenylether as hydrogen acceptor and ethanol as solvent respectively. The reaction gives satisfactory results, as the yield of 3,3', 4,4'-tetraminodiphenylether is raised to a higher degree, i. e., over 80% (85%-88%). The relevant factors have also been discussed in...

A new method to perform the reduction and hydrogenation through the catalytic transfer hydrogenation reaction is presented. It uses modified Raney Ni and Pd-C as catalyst, hydrazine hydrate as hydrogen donor, 3, 3' -dinitro-4, 4' -diaminodiphenylether as hydrogen acceptor and ethanol as solvent respectively. The reaction gives satisfactory results, as the yield of 3,3', 4,4'-tetraminodiphenylether is raised to a higher degree, i. e., over 80% (85%-88%). The relevant factors have also been discussed in some detail, namely, temperature, time, amounts of hydrazine hydrate, catalyst, solvent and the working conditions. Since the method has so many advantages, such as simpler equipments, better yield, reaction time taken shorter, easy to operate, etc., it possesses the high potentiality of being used industrially.

本文用催化转移氢化方法,以改性Raney Ni及钯一炭为催化剂,以水合肼为供氢体,3,3′-二硝基-4,4′-二氨基二苯醚为受氢体,乙醇为溶剂进行还原氢化反应,获得较满意结果,还原产物3,3′4,4′-四氨基二苯醚得率可达80%以上(85—88%)。此外,还对反应温度、时间以及水合肼、催化剂、溶剂用量等影响因素进行了研究,获得了最佳工艺条件。本法具有设备简单、操作方便、反应时间短、得率较高等优点,具备工业应用的价值。

In this paper. aluminum tri-hydrate(ATH) pretreated with SY-1 titanate incombination with chlorohydrocarbons areused as flame retardants in LDPE foams.The above techinque has synthetic effectson enhancing flame resistance, reducing smo-king emissions and improving physical pro-perties (strength, moulding, etc.) of LDPEfoams and has been applied to the manufa-cture of foamed PE sheet filled with ATH,to achieve JISA 1322--1966 specification.

本文以Al_2O_3·3H_2O(ATH)和含氯烃联用为聚乙烯泡沫塑料的阻燃剂,并使用Sy-1钛酸酯为ATH的表面处理剂。实验表明:该阻燃技术具有提高聚乙烯泡沫塑料阻燃性、减少烟雾、改善物性(成型性、力学性能)的综合效能,已用于生产阻燃聚乙烯铝塑泡沫板材,防火性符合JISA规范。

A systematic study had been made for the possibility of recovering limcmud contaminated with silicates. The purpose of the study was to find out the maximum allowable silica contents in green liquor which would not retard such recovering of limemud. The silica concentration of the green liquor used for investigation were 9.26, 4.91, 3.51, 1.19 kg/m~3 (SiO_2). It was found that accumulation of silica in the mud tended to approach a maximum ("AM") and remain constant after a certain amount of repeated recycling...

A systematic study had been made for the possibility of recovering limcmud contaminated with silicates. The purpose of the study was to find out the maximum allowable silica contents in green liquor which would not retard such recovering of limemud. The silica concentration of the green liquor used for investigation were 9.26, 4.91, 3.51, 1.19 kg/m~3 (SiO_2). It was found that accumulation of silica in the mud tended to approach a maximum ("AM") and remain constant after a certain amount of repeated recycling involving caustcization limemud incineration and CaO recovering. The higher the silica content in the initial green liquor, the greater the value of "AM" in the limemud would be obtained. With AM=4.67·e~(0·27x) (where x is the silica content in kg/m~3 (SiO_2) of the green liquor) and total alkali of the green liquor in the range of 100±9 Na_2O kg/m~3, the percentage of silica in the mud in any cycle number "n" could be expressed as Y=AM(1-e~(-0·3n)), where Y is silica percentage in the mud. With an increment of 1 kg/m~3 (SiO_2) in the green liquor 31%(SiO_2) increment would be found in the mud. When the silica concentration in the green liquor happened to be higher than 2.82 kg/m~3 (SiO_2), AM 10% and the CaO in the lime recovered less than 80%, the limemud ought to be considered worthless for further treatment, when the silica concentration was less then 2.82, AM<10% and the CaO more then 80%, the limemud could be worth reusing. When the silica concentration was equal to 2.82, the purity of the green liquor and the lime would be the domininating factors for limemud recovery. In the reburning of the limemud, silica tended to form CaSiO_3 and compounds, such as β-2CaO·SiO_2. The higher the silica contents in the mud, the more β-2CaO·SiO_2, would be formed. β-2CaO. SiO_2 would hydrate very slowly. This did not take place in the recausticization reaction, which instead, brought about high active CaO losses.

本文对白泥的可回收性进行了系统的研究、以便找出能使白泥可以回收的绿液极限含硅量。实验对SiO_2含量为9.26,4.91,3.51,1.19kg/m~3的安验室绿液进行了白泥回收再用。实验结果表明,硅在白泥中的积累不是无限增加的。当循环次数足够大时,白泥中硅含量趋于衡定,并达到一个最大值“Am”。绿液中的硅含量越高,Am越大,Am=4.67e~(0·27x)(x是绿液中二氧化硅含量kg/m~3,绿液总碱为100±9kg/m~3Na_2O)。在任一循环次数n下的白泥中SiO_2含量由下式决定: y=Am(1-e~(-n·3n)),绿液中SiO_2含量每增加1kg/m~3,白泥中的SiO_2含量将增加31%。当绿液中SiO_2含量高于2.82kg/m~3时,Am>10%。这时回收灰中活性氧化钙小于80%,白泥回收效益不大。当绿液中SiO_2含量小于2.82kg/m~3时,白泥的Am<10%。回收灰中活性氧化钙的含量高于80%,白泥回收价值较高。当绿液中SiO_2在2.82kg/m~3左右时,白泥回收的效益取决于绿液和石灰的质量。白泥在回收煅烧时,除生成CaSiO_3以外,还会产生高钙比的硅化物,如:β-2CaO·...

本文对白泥的可回收性进行了系统的研究、以便找出能使白泥可以回收的绿液极限含硅量。实验对SiO_2含量为9.26,4.91,3.51,1.19kg/m~3的安验室绿液进行了白泥回收再用。实验结果表明,硅在白泥中的积累不是无限增加的。当循环次数足够大时,白泥中硅含量趋于衡定,并达到一个最大值“Am”。绿液中的硅含量越高,Am越大,Am=4.67e~(0·27x)(x是绿液中二氧化硅含量kg/m~3,绿液总碱为100±9kg/m~3Na_2O)。在任一循环次数n下的白泥中SiO_2含量由下式决定: y=Am(1-e~(-n·3n)),绿液中SiO_2含量每增加1kg/m~3,白泥中的SiO_2含量将增加31%。当绿液中SiO_2含量高于2.82kg/m~3时,Am>10%。这时回收灰中活性氧化钙小于80%,白泥回收效益不大。当绿液中SiO_2含量小于2.82kg/m~3时,白泥的Am<10%。回收灰中活性氧化钙的含量高于80%,白泥回收价值较高。当绿液中SiO_2在2.82kg/m~3左右时,白泥回收的效益取决于绿液和石灰的质量。白泥在回收煅烧时,除生成CaSiO_3以外,还会产生高钙比的硅化物,如:β-2CaO·SiO_2,白泥中SiO_2含量越高,β-2CaO·SiO_2的生成量越高。β-2CaO·SiO_2水化很慢,在苛化时不起反应。结果损失了大量的活性氧化钙。

 
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