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add the seed
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  加入晶种
     It was advantageous for the formation of sodium aluminosilicate hydrate to increase the temperature, or to decrease the caustic concentration, or to intensify the agitation, or to add the seed(or impurities) in the alumina production.
     提高反应温度、降低碱浓度、加强搅拌或加入晶种 (或杂质 )均有利于水合铝硅酸钠的形成 .
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  相似匹配句对
     ADD Company
     《案例》:ADD公司
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     Seed Dressing
     种衣剂的发展简述
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     ARTIFICIAL SEED
     人工种子
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     Add the Caption
     轻松添加DVD字幕轨
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     The seed of C.
     田野菟丝子C .
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By analysing the data of the test on the appropriate culture techniques for the new improved varieties of highland barley, it was proved that poor soil fertliity, aged varieties and less quantity of spike per unite area were the main restrictive factors, and it was indicated that using improved varieties increasing amounts of fertilizer applicotion,and sowing norm.rasising the rate of emergence were the major technical measures to get high yield of spring highland barley. For the wild low-middle yield fields,...

By analysing the data of the test on the appropriate culture techniques for the new improved varieties of highland barley, it was proved that poor soil fertliity, aged varieties and less quantity of spike per unite area were the main restrictive factors, and it was indicated that using improved varieties increasing amounts of fertilizer applicotion,and sowing norm.rasising the rate of emergence were the major technical measures to get high yield of spring highland barley. For the wild low-middle yield fields, the critical Practices were to increase the number of plants and spikes Per unite area by adding the seed quantity and the rate of emergence properly. For middle yield fields, the important measures were both using improved varieties and increasing fertilizer. The fertilizer tolerant and hieh yield varieties were more necessary as that the amount of frtilizer applied is en-chanced in future.

研究证明:土壤基础肥力差,而化肥施用量又少、品种老化混杂、亩穗数严重不足是影响目前西藏春青稞大面积丰产的主要限制性因子。并依次提出了在广大中低产农区应以增施化肥和有机肥为主要增产措施,同时要适当增加播量,改进播种质量,提高出苗率,以保证群体的足够穗数;在一般中产农区应更换品种和增施化肥并重;随着肥力的进一步提高,耐肥高产品种的选用尤为突出。

The kinetics of the formation of sodium aluminosilicate hydrate in strong caustic solutions at high mole ratio(between Na\-2O and Al\-2O\-3) were studied. It was one order for \{Al(OH)\+-\-4\} and SiO\-2(OH)\+\{2-\}\-2 ion respectively. The value of apparent active energy was 86.42 \{kJ/mol\}. Based on the analysis of the structure of the aluminate solution and the mechanism of the formation of zeolite, the mechanism of five\|ligand intermediate state was set up. It was advantageous for the formation of sodium...

The kinetics of the formation of sodium aluminosilicate hydrate in strong caustic solutions at high mole ratio(between Na\-2O and Al\-2O\-3) were studied. It was one order for \{Al(OH)\+-\-4\} and SiO\-2(OH)\+\{2-\}\-2 ion respectively. The value of apparent active energy was 86.42 \{kJ/mol\}. Based on the analysis of the structure of the aluminate solution and the mechanism of the formation of zeolite, the mechanism of five\|ligand intermediate state was set up. It was advantageous for the formation of sodium aluminosilicate hydrate to increase the temperature, or to decrease the caustic concentration, or to intensify the agitation, or to add the seed(or impurities) in the alumina production.

研究了浓碱高苛性比铝酸钠溶液中水合铝硅酸钠形成的动力学行为 ,反应对 Al(OH) - 4 、Si O2 (OH) 2 - 2 均为一级反应 .结合溶液的结构和沸石形成机理 ,提出了五配位中间体形成机理 ;提高反应温度、降低碱浓度、加强搅拌或加入晶种 (或杂质 )均有利于水合铝硅酸钠的形成 .

BMWW was synthesized under static hydrothermal crystallization conditions using hexamethyleneimine(HMI) or piperidine(PI) as a template. The effect of boron to silica molar ratio, basicity, alkali cations, seeds, aging and reaction time on the crystallization was investigated. It was found that BMWW with good crystallinity was obtained when the SiO_2/B_2O_3 molar rate was between 1.5~6 and pH value was between 9.0~10.3 in the gels. Formation of BMWW was not affected by the alkali cations. Adding the...

BMWW was synthesized under static hydrothermal crystallization conditions using hexamethyleneimine(HMI) or piperidine(PI) as a template. The effect of boron to silica molar ratio, basicity, alkali cations, seeds, aging and reaction time on the crystallization was investigated. It was found that BMWW with good crystallinity was obtained when the SiO_2/B_2O_3 molar rate was between 1.5~6 and pH value was between 9.0~10.3 in the gels. Formation of BMWW was not affected by the alkali cations. Adding the seeds shortened the crystallization time and prolonging the aging time enhanced the purity of products.

本文分别以哌啶(PI)和六亚甲基亚胺(HMI)为模板剂用静态水热法合成出B-MWW分子筛。考察了凝胶硅硼比、碱度、碱金属离子、添加晶种、老化时间和晶化时间对晶化产物的影响。发现凝胶SiO2/B2O3比为1.5~6和pH值范围在9.0~10.3下能得到结晶度良好的B-MWW分子筛;碱金属离子存在与否并不影响B-MWW的合成,添加晶种能够提高分子筛的晶化速度,延长老化时间可提高产品纯度。

 
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