查询词典 sieve method

Lithium ion-sieve;lithium manganate;low temperature solid phase synthesis method;sol-gel method

锂离子筛；锰酸锂；低温固相合成法；溶胶-凝胶法

Problems existed in a micro-reactor evaluation unit were analyzed, some improvements were also made including feeding method from liquid to gas, replacing stainless steel wire mesh in reactor with special quartz sieve plate , decreasing pipeline in collective system and replacement of pressure water method by vacuum dehydration.

分析了旧微反应评价装置存在的问题，并对其进行了如下改进：进料方式由液体进料改为气体进料；反应器内原有的不锈钢丝网用定制的石英筛板替换；收集系统减少了管线，并用真空吸水法替代了压水法。

The results show that the gradation designed by five control sieve design method is very close to the gradations designed by Bailey method and CAVF method separately, and it is between them basically.

结果表明：采用五控制点级配设计方法设计的级配与贝雷法、CAVF法的设计级配非常接近，并且总体上位于贝雷法设计级配和CAVF法设计级配之间。

The full text is total to is divided into four chapter:Chapter 1, the relevant concept of the listed company results evaluation, that is the other the theories foundation of the chapter, and do the foul to the textual evaluation angle settle;Chapter 2, the results evaluation index sign and the index sign system, the original index sign system of comprehensive evaluation of information formation that that choice listed company publish, and introduced the in common use index sign to sieve to endow with the method of the power with index sign;Chapter 3, the comprehensive results evaluation method, this is the foundation that carries on chapter 4, that carry on theories in chapter 2 fusion, became two kinds of comprehensive evaluation methods, and carried on the des cription to the operation step of a method;Chapter 4, the substantial evidence is analytical, this is the point of the full text, the collections combines the data of tidy up the listed company, making use of two kinds of methods within chapter 3s respectively, carry on synthesize to rank, and get two kinds of methods to rank the result to look like the consistent conclusion.

全文共分四章：第一章，上市公司绩效评价的有关概念，该章是其它章节的理论基础，并对本文的评价角度做出界定；第二章，绩效评价指标及指标体系，该章选择上市公司披露的信息形成综合评价的原始指标体系，并介绍了常用的指标筛选和指标赋权的方法；第三章，综合绩效评价方法，这是进行第四章的基础，该章将第二章中的理论进行融合，形成了两种综合评价方法，并对每种方法的操作步骤进行了描述；第四章，实证分析，这是全文的重点，收集并整理上市公司的数据资料，分别利用第三章中的两种方法，进行综合排名，并得到两种方法排名结果近似一致的结论。

The invention discloses a dielectric hole-microhole composite material and synthesizing method in the inorganic porous material, adsorbing material and catalytic material technical domain, which comprises the following steps: adopting zeolite molecular sieve as raw material; reacting with sodium bisilicate solution under 30-60 deg.c for 10-300 min; disintegrating particle part of zeolite molecular sieve into piece with microhole structure; adding cetyl trimethyl ammonium bromide as molder; adjusting pH value of mother liquid to 10-12; aging 1-8h; adding in the high-pressure autoclave to do water heat synthesizing reaction at 80-130 deg.c for 24-72h; separating solid; washing; drying; sintering under 500-600 deg.c for 5-10h; obtaining the Si-Al porous material with dielectric hole and microhole composite structure.

本发明属于无机多孔材料、吸附材料和催化材料技术领域，涉及具有介孔-微孔复合材料及其合成方法。其特征是以沸石分子筛为原料，用偏硅酸钠的水溶液在30～60℃反应10～300分钟，使沸石分子筛的颗粒部分解离形成具有微孔结构的碎片，加入模板剂十六烷基三甲基溴化铵，然后调节母液pH值为10～12，老化1～8小时，然后加入高压釜于80～130℃进行水热合成反应。反应24～72小时后，分离出固体，水洗、干燥，然后于500～600℃焙烧5～10小时，得到具有介孔和微孔复合结构的硅铝多孔材料。本发明的效果和益处是所发明的合成方法可用于合成多种沸石结构和介孔结构的复合材料，所合成的材料经过质子交换可以具有较强的酸性，在吸附和催化领域具有广泛应用前景。

The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly in the synthetic process of the ZSM-5 molecular sieve material for producing the Magadiite/ZSM-5 intergrowth material, wherein the proportion of intergrown phases is adjustable, and the synthesized Magadiite/ZSM-5 intergrowth material adopts the compositions including the following mole relation: nSiO2:Al2O3, where n is between 50 and 1000 in the formula, and the method is characterized in that the Magadiite/ZSM-5 intergrowth material has two intergrown phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 15.73+-0.1, 11.14+-0.1, 9.97+-0.1, 7.74+-0.1, 5.14+-0.1, 3.86+-0.05, 3.66+-0.05, 3.45+-0.05, 3.30+-0.05 and 3.14+-0.1 angstroms, thereby solving the problems properly.

本发明通过采用在ZSM-5分子筛材料合成过程中，控制好分子筛的成核和生长过程，制备出了一种Magadiite/ZSM-5共生材料，其中共生物相比例可调，合成的Magadiite/ZSM-5共生材料采用包括以下摩尔关系的组成：nSiO2∶Al2O3，式中n＝50～1000，其特征在于所述Magadiite/ZSM-5共生材料具有两种共生物相，其XRD衍射图谱在15.73±0.1，11.14±0.1，9.97±0.1，7.74±0.1，5.14±0.1，3.86±0.05，3.66±0.05，3.45±0.05，3.30±0.05，3.14±0.1埃处有d-间距最大值的技术方案，较好地解决了上述问题。

The invention relates to a synthesis method for an SAPO molecular sieve, which mainly solves the problems of low crystallinity and poorer performance of the SAPO molecular sieve in the prior art.

本发明涉及一种SAPO分子筛的合成方法，主要解决现有技术中SAPO分子筛结晶度低、性能较差的问题。

The invention relates to a preparation method of the ZSM-5/mordenite compound molecular sieve, mainly solves the complex question which needs to add the seed crystal or subsect the crystallization in the existing compound molecular sieve synthesize process.

本发明涉及一种ZSM-5/丝光沸石复合分子筛的制备方法，主要解决现有复合分子筛合成过程中需加入晶种或需要分段晶化等较为复杂的问题。

Authors designed four mixtures of dense-graded asphalt stabilized macadam base with the method recommended by Technical Specifications for Construction of Highway Asphalt Pavement, Superpave design method, coarse aggregate voids filling method and Bailey method separately, and determined the pavement performances of asphalt stabilized macadam base mixture under the optimal oil-stone rate which include resistance capacity to vertical deformation and fatigue. Then, four design methods were compared and appraised. Based on the above study, a new asphalt-stabilized macadam base mixture gradation design method-five control sieve design method was put forward.

分别采用现行规范推荐法、Superpave法、主骨架空隙体积填充法和贝雷法设计了4种密级配沥青稳定碎石基层混合料，然后采用力学指标设计法确定了所设计的4种级配沥青稳定碎石基层混合料的最佳油石比，并对最佳油石比下的沥青稳定碎石基层混合料进行了抗永久变形性能和抗疲劳性能等路用性能的研究；根据设计过程和设计结果对4种级配设计方法进行了比较评价，在此基础上提出了新的密级配沥青稳定碎石基层混合料的级配设计方法－五控制点级配设计方法。

By analyzing the mineral composition and chemical composition of coal fly ash as well as synthetical mechanism of the 4A molecular sieve ,the technological flowsheet for preparing 4A molecular sieve from coal fly ash with hydrothermal method has been designed.

通过分析粉煤灰的矿物组成、化学成分和4A分子筛合成机理，设计了粉煤灰水热法制备4A分子筛的工艺流程，并重点介绍了粉煤灰的n(S iO2)/n(A l2O3)、n(Na2O)/n(S iO2)、n(H2O)/n(Na2O)、凝胶形成温度和时间、晶化温度和时间以及晶种添加等方面的原理及工艺参数选择情况，可为粉煤灰合成高品质的A型沸石提供借鉴。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐