- 相近搜索
- 钨酸盐类
- 更多网络例句与钨酸盐相关的网络例句 [注:此内容来源于网络,仅供参考]
-
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。
-
The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.
浓硝酸的加入量保证稀土氧化物溶解就可以,过量的硝酸可以加热除去;将可溶性钨酸盐和表面活性剂溶解于去离子水中,得到钨酸盐溶液,表面活剂性的加入量为反应原料重量的0-30wt%;将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌,发生沉淀反应,磁力搅拌时间为25-60分钟,得到白色沉淀;将含有沉淀物的溶液作为前驱物加入到反应釜中,发生水热反应,反应温度为100-260℃,反应时间为24~72小时;离心分离,洗涤,干燥,即得所需产物。
-
The former is to prepare polymolybdates coordinated' directly by organic ligands using Na2MoO4 and MoO3 precursors; The latter plays emphasis on exploiting a simple and effective routine to synthesize Keggin polytungstates in which the transition metal or Si acts as the heteratom by reaction precursor Na2WO4.We have synthesized a 4,4'-bipyridine bridging dumbbell-like polymolybdates a metatungs...
前者主要是制备有机配体键合的多金属钼酸盐;后者重点是探索出一个简易、有效的合成过渡金属或主族元素硅作杂原子的Keggin多金属钨酸盐的方法,然后通过变换过渡金属或有机配体的种类探讨对产物结构的影响,再对所得化合物的结构和组成通过物理测试手段进行表征,同时研究其在光、电、磁等方面的性质。
-
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。
-
An oxyacid of tungsten formed by neutralizing alkaline tungstate solutions.
钨的含氧酸,通过中和碱性钨酸盐溶液形成。
-
The results show that the dissoluble tungstate can be impregnated into the pores of C/C composite materials....
研究结果表明,用浸渍法可将可溶性钨酸盐浸渍到炭/炭复合材料的孔隙中,将浸入炭/炭复合材料中的钨酸盐还原成金属钨可以在一定程度上改善炭/炭复合材料在X射线下的可视性。
-
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。
-
Under the excitations of Ultraviolet, X-ray, cathodic ray, etc. tungstates can produce blue emission, and molybdates can generate green light. Hence, scheelite-structured tungstates and molybdates are used in the fields of detections for high energy particles, scintillant arithmometers, X-ray gain screen, luminescence and displays.
在紫外、X射线、阴极射线等的激发下,钨酸盐能发射出蓝光,钼酸盐能发射出绿光,因而白钨矿结构的钨—钼酸盐在高能粒子探测、闪烁计数器、X射线增感屏、发光与显示技术等领域具有重要的应用。
-
In the present paper,the solid state synthesis and luminescent properties of RE activated tungstates are introduced.
本文从单钨酸盐、混合碱土金属钨酸盐、氟钨酸盐、同多钨酸盐、杂多钨酸盐等方面综述了掺杂稀土离子钨酸盐的固相合成及发光特性研究进展。
-
The luminescent propetties of RE activated tungstates are dealt with in respect to mixed alkali earth metal tungstates,fluorotungstates,isopolytungstates,heteropoly tungstates.
本文从单钨酸盐、混合二价金属钨酸盐、卤钨酸盐、同多钨酸盐、杂多钨酸盐等方面综述了掺杂稀土离子钨酸盐的发光特性研究情况。
- 更多网络解释与钨酸盐相关的网络解释 [注:此内容来源于网络,仅供参考]
-
tundish superheat:中间罐过热
tundish preheating station 中间罐预热站 | tundish superheat 中间罐过热 | tungstate 钨酸盐
-
Tung:桐树
tung tree 油桐树 | tung 桐树 | tungstate 钨酸盐
-
tungstate:钨酸盐
tundish superheat 中间罐过热 | tungstate 钨酸盐 | tungsten 钨
-
metavoltine:变钾铁矾
metavolcanite 变质火山岩 | metavoltine 变钾铁矾 | metawolframate 偏钨酸盐
-
phosphotungstate:磷钨酸盐 酸
醋酸钾 potassium acetate 98 | 磷钨酸盐 酸phosphotungstate | 碳酸钙 Calcium Carbonate
-
wolframate:钨酸盐
wolfram 钨 | wolframate 钨酸盐 | wolframic acid 钨酸
-
tungstate; wolframate:钨酸盐
"调栅振荡器","tuned grid oscillator" | "钨酸盐","tungstate; wolframate" | "钨合金","tungsten alloy"
-
wolframine:钨华 黑钨矿
wolframate /钨酸盐/ | wolframine /钨华/黑钨矿/ | wolframite /钨锰铁矿/铁锰重石/
-
tungstates:钨酸盐
tundish 中间盛钢桶,漏斗 | tungstates 钨酸盐 | tungsten 钨
-
sodium tungstate dihydrate:钨酸钠
钨酸钠 SODIUM TUNGSTATE | 钨酸钠 sodium tungstate dihydrate | 钨酸盐 Tungstate