查询词典 sieve method

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。

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。

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。

The results showed that the TEAOH possessed stronger framework-directing function during the synthesis process of SAPO-34 molecular sieve, and took up more electronegative framework positions while the morpholine mainly filled the micropore system of SAPO-34 molecular sieve.

结果表明，TEAOH在导向生成SAPO-34分子筛骨架过程中表现活跃，占据了较多的平衡骨架负电荷的位置，而吗啉主要起到填充分子筛孔道的作用。

The cortical cells had thin walls and mitochondrium, and nucleus wassurrounded by chloroplasts, and vesicles were next to cell plasmalemma. However, cellwalls of velamen, cortex and exodermis in the mycorrhiza of D. nobile had ring orpapillary thickenings in many cases. The hyphae were surrounded by moremitochondria and vesicles of plant, and the hyphae were digested and their structure waschanged at last. The cell wall of endodermis also had typical ring thickenings, and manysieve orifices in sieve tube elements of phloem were covered by callose, while therewere liaison cords in a few sieve orifices.

金钗石斛菌根的根被细胞的细胞壁多处出现环形圈，外皮层细胞壁加厚，木质化，也有环形圈存在，皮层细胞细胞壁多角形明显，加厚，皮层细胞中存在被消化、失去结构的真菌菌丝，在菌丝周围有较多的线粒体、小泡，内皮层细胞的细胞壁呈现的典型的加厚及木质化环形圈，韧皮部筛管的筛板结构，绝大多数筛孔已为胼胝质所覆盖，仅个别筛孔中还存在连络索。

The Company is committed to the production of major fencing wire mesh, shaped network isolation Net, Net framework, building products breeding and at the same time after years of development and expansion of products has been covered to: Punching Net, audio network, the loudspeaker network, noise barriers , sound-absorbing plate, microplate, screen machine, sieve, sieve films retaining block, Net shelves, plastic net, plastic net, plastic net sets, sets of plastic net, anti-theft Net, Net wall, metal wall Nets, aluminum Net, Net fiber glass married, invisible screens, battery Nets, Nets plate, Iron Net, welded wire mesh, plaster mesh, building net, hexagonal, Net hooks, cotton net, the U.S. grid, hexagonal, screw Flower Net, gill nets, with the transmission network, touch Net, Net-type seats, stainless steel wire mesh, copper Net, Net aluminum, nickel, Net, Net stock, air-conditioning filters, nylon mesh, metals and other major Net Series Products.

本公司是专业致力于生产护栏网、异形网、隔离网、框架网、建筑养殖等系列产品，同时经过多年的发展壮大生产的产品已涵盖到：冲孔网、音响网、喇叭网、隔音板、吸音板、微孔板、机筛网、筛板、筛片护拦网、货架网、塑料网、塑胶网、套塑网、套胶网、防盗网、围墙网、金属围墙网、铝板网、玻缡纤维网、隐形窗纱、电池网、钢板网、铁艺网、电焊网、批荡筛网、建筑用网、六角网、勾网、轧花网、美格网、六角网、拧花网、刺网、传送网带、碰网、席型网、不锈钢网、铜网、铝网、镍网、合股网、空调过滤网、尼龙网、金属网等各大系列产品。

These machinese are patent product(01235113.8)of our company opening up newly.it is used for white rice grading and choiceness in the rice grocessing factory.adopt the serial whole selecting cech nology.the extraction of whole rice are good;Adopt the patent (ZL99245666.5) of the sieve aperture that won't be plugged to avoid cleaning the sieve cove;set the knockdown front board to be convenient for cleaning the grume of the rice bran.

本设备是我公司最近开发的专利（01253113.8）产品，适用于碾米厂进行白米的分级精选。采用连续二次整米提取工艺，整米提取率高；采纳不堵孔筛格专利（ZL99245666.5），免于经常清理筛面；设置可拆卸前封板，便于清除筛体内糠粉粘结物。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

That snake Alaric named Archbishop...

庇护。。。那个毒如蛇蝎的Alaric被命名为大教主。。。

You have done lots of magical things to be amazed at.

你做了很多神奇的事物感到惊讶。