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hydrogen form
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  “hydrogen form”译为未确定词的双语例句
     Photocatalytic production Methanol and Hydrogen form Methane with Water has a great significance in utilization of natural gas and exploitation of hydrogen resource from water.
     光促表面催化甲烷和水制取甲醇和氢在天然气资源利用和清洁氢能源开发方面具有重要理论意义和应用价值。 本论文系统深入地研究了气-固光催化反应体系中负载型复合半导体材料的设计和制备及相关材料的表面结构、化学吸附性能和光响应性能与光催化反应性能的关联。
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     As compared with the hydrogen form,all the modified catalystsyielded less coke. Among them,HZ-29-P gave the least amount of cokedeposit. In addition,no deterioation was observed after more than 30times of regeneration for this catalyst.
     和H 型的对比,在经改性后的沸石催化剂上结炭量都明显下降,其中以HZ-29-P 结炭最少,且此催化剂能够经受30次以上的再生试验。
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  相似匹配句对
     On form
     “形式”论
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     the form and structure of hydrogen bonds changed;
     氢键的结构和形式发生改变;
短句来源
     In the crystal, there are two form of hydrogen bonds, namely O-H… O and N-H…O.
     晶体内部存在O—H…O和N—H…O两种形式的氢键。 由于两种氢键的性质不同,因此对碳酸氢铵晶体的易分解挥发,吸湿结块及热稳定性等性能密切相关。
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     HEX form and.
     HEX及.
短句来源
     Hydrogen and Home
     氢能进入家庭与环境保护
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  hydrogen form
Formation and properties of the hydrogen form of mordenite
      
Formation and properties of the hydrogen form of mordenite Communication 9.
      
Formation and properties of the hydrogen form of mordenite Communication 8.
      
Investigation of the kinetics of the isomerization of n-pentane on the hydrogen form of mordenite at low partial pressures of hy
      
Formation and properties of the hydrogen form of mordenite
      
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In the present paper a method for the isolation of ergometrine from ergot by means of ion exchange is described. The air-dried powder of ergot was extracted with 0.05N HC1 and the extract was passed over the ion exchange resin. It was found that out of six ion exchange resins of sulphonated styrene-divinylbenzene type, the best for the adsorption of ergot alkaloids from the extract was the resin with 2% cross-linking in hydrogen form. Adsorption was optimum at pH 3.5—5.9. After treatment with 5% NH4OH,...

In the present paper a method for the isolation of ergometrine from ergot by means of ion exchange is described. The air-dried powder of ergot was extracted with 0.05N HC1 and the extract was passed over the ion exchange resin. It was found that out of six ion exchange resins of sulphonated styrene-divinylbenzene type, the best for the adsorption of ergot alkaloids from the extract was the resin with 2% cross-linking in hydrogen form. Adsorption was optimum at pH 3.5—5.9. After treatment with 5% NH4OH, the alkaloids were removed from the resin with acetone-ether (3:7) or acetone-chloroform (7:3) in a Soxhlet. Ergometrine can be separated from the other ergot alkaloids with chloroform in which the former is insoluble as solvated crystals. A procedure for the isolation of ergometrine from ergot has been proposed, and small scale runs gave yields of 60—70% (based upon the ergometrine content of the ergot).

研究了利用离子交换树脂从麦角中分离麦角新碱的方法.用0.05N盐酸溶液从麦角粉末中提取出总生物碱,然后通过离子交换树脂.在6种国产不同交联度的苯乙烯磺酸氢型树脂中,以强酸1—2树脂对酸水提取液中麦角生物碱的交换量最高.酸水提取液的pH以3.5—5.9较为合适.试验证明,采用先碱化树脂,使麦角生物碱游离,再在Soxhlet提取器中用丙酮-乙醚(3:7)或丙酮-氯仿(7∶3)混合溶剂洗脱生物碱的方法,不但可以得到较高的洗脱率,同时节省了有机溶剂.以后利用麦角新碱能与氯仿形成复合结晶,却又难溶于氯仿的特性,可以使麦角新碱与其他麦角生物碱分离.小量试制结果,麦角新碱的收率为60—70%.

This paper describes various methods for control of the boron concentrationand the lithium concentration in the high-temperature and high-pressure dynamicwater corrosion loop.The boron concentration is controlled using the temper-ature effect of the borate-form resin.A hydrogen-form cation exchanger is ins-tailed to remove the excessive lithium in water,by means of feed and bleedoperations,both boron concentration and lithium concentration are diluted withboron-free and lithium-free pure water.These...

This paper describes various methods for control of the boron concentrationand the lithium concentration in the high-temperature and high-pressure dynamicwater corrosion loop.The boron concentration is controlled using the temper-ature effect of the borate-form resin.A hydrogen-form cation exchanger is ins-tailed to remove the excessive lithium in water,by means of feed and bleedoperations,both boron concentration and lithium concentration are diluted withboron-free and lithium-free pure water.These results show that borate-formresin prepared from the strong base anion resin made in our country is capableof boron concentration regulation with temperature variation.As a major meansof regulating boron concentration,it is simple and easy.The use of the hydro-gen-form ion exchanger is able to reduce the lithium concentration rapidly andefficiently in water.Feed and bleed procedure is a necessary supplementarymethod during the loop operation.

本文介绍在高温高压动水腐蚀回路中控制水中硼锂浓度的几种方法:利用硼型树脂的温度效应控制硼浓度,设置氢型离子交换器用以除去水中过量的锂以及将不含硼锂的纯水用充排方式对回路水中的硼锂浓度同时进行稀释。结果表明,由国产强碱性阴树脂制备的硼型树脂,随温度变化具有一定的调硼能力,作为运行期间调硼的主要手段,简便易行;氢型离子交换器的投入能迅速有效地降低水中锂浓度;充排式操作是运行中必不可少的辅助措施。

Uranyl species sorbed on cation exchanger from H2SO4 and HCl solution are thoroughly studied by IR spectra and equivalent accounting. The spectra are recorded with DIGILAB FTS-15C infrared spectrometer. The assymetric stretch, v3 of the uranyl group is infrared active. UO2 2+ and (UO2HSO4)+ from H2SO4 solution and UO2 2+ and (UO2Cl)+ from HC1 solution are found to be sorbed on the cation resin. The species sorbed on cation exchanger shows only a single band at 945.3cm-1. or 949.2cm-1 when the equilibrium is...

Uranyl species sorbed on cation exchanger from H2SO4 and HCl solution are thoroughly studied by IR spectra and equivalent accounting. The spectra are recorded with DIGILAB FTS-15C infrared spectrometer. The assymetric stretch, v3 of the uranyl group is infrared active. UO2 2+ and (UO2HSO4)+ from H2SO4 solution and UO2 2+ and (UO2Cl)+ from HC1 solution are found to be sorbed on the cation resin. The species sorbed on cation exchanger shows only a single band at 945.3cm-1. or 949.2cm-1 when the equilibrium is carried out in the solution with very low concentration of H2SO4 or HC1 respectively. The species should be UO2 2+. However, a new band at 902.9cm-1 or 906.6 cm-1 is found when the equilibrium is carried out in the solution with high concentration of H2SO4 or HC1 respectively. With increasing the acidity of the equilibrium solution the gradual increase of intensity of the new band and the gradual decrease of intensity of the original one can be observed. As a cation exchanger selectively sorbs cation, the species now sorbed should be either (UO2HSO4)+ or (UO2Cl)+. But the amount of (UO2HSO4)+ or (UO2Cl)+ on the cation exchanger can be ignored with a concentration of acids less than 0.5 N, The equivalent accounting method is applied to the resin loaded with uranyl ion and hydrogen ion, together with cation uranyl complex species, under the conditions of negligible invasion of uarnyl species. A known amount of resin in hydrogen form is equilibrated in a batch process with a solution containing uranyl and sulfuric acid(or hydrochloric acid) at various ratios. It is found experimentally that the amount of (UO2HSO4)+ or (UO2Cl)+ sorbed on exchanger is so low that they can not be observed by the method within experimental errors.It may be concluded that the (UO2HSO4)+ or (UO2 Cl)+ sorbed on cation exchanger can be overlooked under the general conditions of the experiment.

本文用红外光谱法和当量计算法研究了在硫酸、盐酸介质中铀(Ⅵ)在阳离子交换树脂上的化学状态及其含量。结果表明,在阳离子交换树脂上,铀(Ⅵ)除了以UO_2~(2+)外,还可以(UO_2HSO_4)~+和(UO_2Cl)~+存在,但当酸的浓度低于 0.5N时,其量可忽略不计。即使在酸浓度相当大(2—3N)时,(UO_2HSO_4)~+和(UO_2Cl)~+也只占树脂交换容量的很小一部分。因此,在通常用的阳离子交换色层法富集铀同位素的工作中,可以按照阳离子交换树脂上只有 UO_2~(2+)来考虑同位素效应及计算分离因数。

 
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