查询词典 sulfur chloride

The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.

考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响，结果表明，沉淀反应的适宜pH值大于11，苯甲醛与L-精氨酸的适宜摩尔比为1.25，(来源：Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上，氯化钠的存在对沉淀率基本上没有影响，而氯化铵和L-赖氨酸的存在使沉淀率下降；同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线，表明其最大平衡吸附量为30mg/g，考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响，结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2，温度对L-赖氨酸吸附率影响不大，吸附过程可在室温下进行，氯离子的存在使L-赖氨酸的吸附率降低。

According to the compared analysis of prevention sulfur deposition during the production of high sour gas well, the key of prevent sulfur deposition and to control sulfur blocking is choose right element sulfur, carry out some research on the selection of sulfur solution, remix the triethylenetetramine, diethylenetriamine and monoethanolamine in different ratios, finally formed LJ-1 compounding which is best fit the production of north Sichuan province.

对比分析了多种硫沉积防治方法，防治的关键在于溶硫剂的合理选择，通过溶硫剂优选室内评价实验研究筛选出三乙烯四胺、二乙烯三胺和乙醇胺等三种单剂，按照不同的比例与现场使用的防冻剂乙二醇进行复配，最终形成了适合川东地区高含硫气井的溶硫剂LJ-1合理配方，性能评价实验表明溶硫剂LJ-1溶硫速率快、溶解度高、腐蚀小。

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

High organic sulfur Beisu bituminous coal and high pyritic sulfur Yangquan anthracite, which involved in raw coal and no inorganic sulfur coal, have been used to investigate the regularity about sulfur forms evolution during combustion by means of improved automatic sulfur analyzer in this paper.

利用改进的自动测硫仪，以高有机硫北宿烟煤和高黄铁矿硫阳泉无烟煤作为研究对象，在不同温度下对原煤和脱无机硫煤在煤燃烧过程中硫析出特性进行了研究，另外对原煤和脱无机硫煤在热解和燃烧时硫形态的变化进行了研究。

The invention provides a sulfur oriented adsorption control method for calcining active lime in a rotary kiln comprising the following steps: the rotary kiln calcines the massive limestone using the mixture of the coal fines and active lime fine silts as fuels, the sulfur in the flue gas is adsorbed using the sulfur adsorption and desulphurizing ability of the active lime fine silts, meanwhile the sulfur-adsorbed kiln dust is separated from the calcined active lime by means of screening to get low sulfur-content active lime.

本发明提供的回转窑煅烧活性石灰中的硫定向吸附控制方法，具体是：回转窑以煤粉与活性石灰微细粉粒的混合物为燃料，在对块状石灰石煅烧时，利用活性石灰微细颗粒所具有的硫吸附与脱硫能力对烟气中的硫进行吸附，同时通过筛分将吸附了硫的窑灰与煅烧过的活性石灰分离，而得到低硫含量的活性石灰。

Furoin was synthesized from furol with VB1 as the catalyst,which was then reacted with acetyl chloride, lauroyl chloride ,benzoyl chloride,α-furoyl chloride and 3-α-furyl acryloyl chloride,respectively;corresponding monoester compounds of furoin were synthesized in THF in the presence of sodium hydroxide under reflux.

以糠醛为基础原料，经维生素B1催化合成糠偶姻，再由糠偶姻分别和乙酰氯、月桂酰氯、苯甲酰氯、α-呋喃甲酰氯和3-α-呋喃烯丙酰氯反应，在NaOH/无水THF体系中，于水浴回流条件下合成了相对应的糠偶姻单酯类化合物。

I plant perennial supply of chemical plating material: nickel sulphate, chloride nickel, nickel nitrate, ammonium chloride, sodium hypophosphite, sodium citrate, ammonium citrate, potassium citrate, chromium oxide, red Lead oxide, palladium chloride, SnCl2, crystal tin tetrachloride, the resistance of fuse, lithium fluoride, sulfuric acid cadmium, Na2HPO4, bismuth chloride, bismuth oxide, oxide Thallium sulfate Cobalt, cobalt nitrate, cobalt chloride, barium hydroxide, calcium hydroxide, fine chemical products.

我厂常年供应化学镀材料：硫酸镍、氯化镍、硝酸镍、氯化铵、次亚磷酸钠、柠檬酸三钠、柠檬酸三铵、柠檬酸钾、三氧化铬、红色氧化铅、氯化钯、氯化亚锡、结晶四氯化锡、电阻熔断剂、氟化锂、硫酸镉、磷酸氢二钠、氯化铋、三氧化二铋、三氧化二铊、硫酸钴、硝酸钴、氯化钴、氢氧化钡、氢氧化钙等精细化工产品。

Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.

凭借这份资料和进一步的分析，朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测：在地球早期的历史上，火山爆发将大量的二氧化硫气体喷射到空中，太阳的紫外线将其分解，产生了奇特的硫同位素比值，这种硫随雨降下，积存于海底沉积层中；一旦到达海底，海底各处的地热出口所产生的温度过高的水把硫加热成硫化物；最终含有镍的岩浆从地幔中涌出，跟硫化物结合形成硫化镍，并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。

At first the energy of the microwave will energized the argon to be ionization, and the generated heat make the sulfur volatilizing into bivalency sulfur or dipolymer sulfur high pressure steam. The molecule transition will happen under the microwave energization, and the visible light will be emitted when the sulfur states change into the low energy level. The spectra of the plasma lamp is nearly centering at the visible lights, and there are very little ultraviolet and infrared spectrum, the Fig 3 shows the spectra of the sun and the plasma lamp from which we can see the spectrum character clearly.

微波能量首先激励氩气使其电离，产生的热量使硫挥发成为二价硫分子或二聚物高压蒸汽，在微能量的激励下使它形成分子跃迁，当返回到较低能级的状态时以连续光谱的形式放射出光线，它的光谱基本上集中在可见光，红外线和紫外线的辐射量很少，（图3）硫的放射光谱和太阳光谱的比较图片，可以很清晰地表达这一特性。

Jie Sheng chemical into the liquid is mainly sulfur-burning sulfuric acid, potassium sulfate, chlorosulfonic acid, liquid sulfur dioxide, sulfur trioxide, nitrosyl sulfuric acid, as well as cogeneration for steam systems, a variety of products amounted to more than 20 years of logistics million tons, capacity 16 million KWH, steam 140,000 tons; a lot of sulfur in addition to the downstream products in the study of chemical development.

捷盛化学目前主要建成液体硫磺制酸、硫酸钾、氯磺酸、液体二氧化硫，三氧化硫、硫酸亚硝酰项目以及余热发电、供汽系统，各类产品年物流量达20余万吨、发电量1600万KWH、蒸汽14万吨；另外还有诸多硫化工下游产品在研究开发之中。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。