- 更多网络例句与磷钨酸盐相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Mg〓 ions in solution take part in the formation of passivation film, which was thicker than that formed in solution without Mg〓. In natural saturated air water and aerated water, the effect of several kinds of anions, dissolved oxygen pH and Ca〓, Mg〓 ions on corrosion inhibition of tungstate was investigated.
钨酸盐作为主要成分的缓蚀剂已经开始实际应用,但是对其缓蚀机理、特别是复配使用时的协同增效机理研究不多,本论文对钨酸盐及其复配缓蚀剂的缓蚀作用和协同增效机理进行了研究,并研究开发了环保型无磷钨系复合水处理剂。
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The catalysts of supported 〓and 〓 were firstly used inthe etherification of FCC light gasoline.
将负载型磷钨酸和磷钨酸盐催化剂应用于催化裂化轻汽油的醚化反应。
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A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho-tungstate in hydrogen.
本文采用氢气程序升温还原磷钨酸盐的方法,制备了一系列负载型磷化钨催化剂。
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Because〓 supported on silica is soluble inmethanol, active center of supported 〓 catalyst is able to elapse. The saltsin which ion semidiameter are larger, are ideal solid acidic catalyst, because of theirhigher activities, insolublilities in methanol.
离子半径较大的负载型磷钨酸盐除具有较高活性外,由于不易溶于极性溶剂,因而催化剂活性稳定性强,是一种理想的固体酸醚化催化剂。
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A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.
通过对包含以下成分的含水酸性液体进行干燥,可以在金属上形成无铬的转换涂层,该涂层与普通铬酸盐转换涂层相比,至少在抗腐蚀质量上等效:$_一种阴离子成分,所述各个阴离子包括至少4个氟原子,至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子,任选地1个或多个氧原子;$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分,上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5;$_足够的游离酸以使该组合物的pH值在0.5~5.0的范围内;$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分;$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分,优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。
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Monododecylphosphate was prepared by esterification of lauryl alcohol with phosphoric acid(mass fraction 85%) on cesium phosphotungstate catalyst.
以磷钨酸铯盐为催化剂,由月桂醇和85%的磷酸直接酯化合成单十二烷基磷酸酯,考察了带水剂种类、反应时间、磷钨酸铯盐催化剂中的铯取代数、催化剂用量和月桂醇与磷酸摩尔比等条件对磷酸转化率及单十二烷基磷酸酯选择性的影响。
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A traditional acidification method incorporated with an ether extraction technique was used to prepare silicotungstic acid and phosphotungstic acid with Keggin structure.
采用盐酸酸化-乙醚萃取法制备了Keggin型硅钨酸、磷钨酸,并分别以活性炭和硅胶为载体,采用不同的制备方法制备出一系列负载型杂多酸。
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The capsaicin in the sample was alkalized with NaOH solution and mixed with phosphotungstic acid and phospho-molybdic acid , the blue heteropoly acid salt has characteristic absorption at 660 nm.
对以辣椒碱为单剂和复配剂制成生物农药中辣椒碱总量的测定条件研究结果表明,含有辣椒碱的生物农药试料,辣椒碱在碱性溶液中与磷钨酸-磷钼酸作用,生成蓝色的磷钨酸–磷钼酸杂多酸盐,在660nm有最大吸收,其吸光度与溶液中辣椒碱的含量成正比。
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Catalytic synthesis of ethyl chloroacetate with phospho-molybdic acid ;2. The capsaicin in the sample was alkalized with NaOH solution and mixed with phosphotungstic acid and phospho-molybdic acid , the blue heteropoly acid salt has characteristic absorption at 660 nm.
对以辣椒碱为单剂和复配剂制成生物农药中辣椒碱总量的测定条件研究结果表明,含有辣椒碱的生物农药试料,辣椒碱在碱性溶液中与磷钨酸-磷钼酸作用,生成蓝色的磷钨酸–磷钼酸杂多酸盐,在660nm有最大吸收,其吸光度与溶液中辣椒碱的含量成正比。
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A series of PVC membrane electrodes with nicotine containing different plasticizeres such as octyl phthalate, nonyl phthalate and di octyl dicaproate, and electric active substances such as association of nicotine-tetraphenyl borane, nicotine-silicotungstic acid, nicotine-phospho-wolframic acid and nicotine-Reineckate ammonium were prepared.
以尼古丁为研究对象,研制了一系列含有不同增塑剂(苯二甲酸二辛酯、苯二甲酸二壬酯和癸二酸二辛酯)和电活性物质(尼古丁四苯硼缔合物、尼古丁硅钨酸缔合物、尼古丁磷钨酸缔合物和尼古丁雷氏盐缔合物)的PVC膜电极。
- 更多网络解释与磷钨酸盐相关的网络解释 [注:此内容来源于网络,仅供参考]
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phosphotungstate:磷钨酸盐 酸
醋酸钾 potassium acetate 98 | 磷钨酸盐 酸phosphotungstate | 碳酸钙 Calcium Carbonate