轻石的

Improvement of Residue by Hydrocracking with Solid Acid, Solid Base and Radical Initiators

固体酸／碱和引发剂促进渣油轻质化的初步研究，石斌；任振东；门秀杰；方日强；阙国和-66文免费论文库，大学生论文库

A light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine).

轻而软的银白色二价金属元素，纯净状态下燃烧会发出明亮白光，仅天然存在于化合物中（如菱镁矿、白云石、光卤石、尖晶石、橄榄石）。

The differentiation between light REE and heavy REE of gabbro and diorite is very obvious 〔N=3.19～7.81〕.

辉长岩和闪长岩的轻、重稀土元素分异明显〔N为3.19～7.81〕，富集大离子亲石元素，亏损Nb、Ta，具岛弧岩浆岩特征。

The main products are: all kinds of industrial furnace regenerator with cordierite, mullite, high alumina, corundum honeycomb, and various materials and specifications of the regenerator the ball, and with regenerator tile block; all kinds of industrial furnace series×, corundum brick, clay brick, lightweight insulation materials, heat insulation brick light weight, low-iron mullite brick, silica brick, magnesia brick, aluminum MgO-C Bricks, magnesia-chrome brick, chrome Corundum bricks, a steel trough brick slipway and a variety of refractory materials such as sizing the outlet; all kinds of industrial furnaces with wear-resistant castables, low cement castable high-strength, impermeable material, gravity feed can be plastic, refractory clay, such as amorphous material; a variety of wear-resistant ceramic materials: ceramic lining, grinding balls, ceramic pipes, ceramic cylinder liner, piston, valves and other ceramics.

主要产品有：各种工业炉蓄热室用堇青石质、莫来石质、高铝质、刚玉质蜂窝体以及各种材质和规格的蓄热球，并配有蓄热体挡板砖；各种工业炉用系列高铝砖、刚玉砖、粘土砖、轻质保温材料、轻质隔热砖、低铁莫来石砖、硅砖、镁砖、铝镁碳砖、镁铬砖、铬刚玉砖、出钢槽滑道砖以及各种定径水口等耐火材料；各种工业炉用耐磨浇注料、低水泥高强浇注料、防渗料、自流料、可塑料、耐火泥等不定形材料；各种材质的耐磨陶瓷制品：陶瓷衬板、研磨球、陶瓷管道、陶瓷缸套、柱塞、陶瓷阀门等。

The properties of light fractions (including naphtha, jet fuel and light hydrogenated lube base oil) from the 300 kt/a lube isodewaxing unit of SINOPEC Shanghai Gaoqiao Company were reviewed and a proposal for optimizing utilization of these fractions was presented, such as producing AR petroleum ether from naphtha; superior odorless kerosene and rolling oil of aluminum foil from jet fuel fraction; transformer oil, high quality white oil and jelly wax from light base oil fraction.

对中国石化上海高桥分公司300kt/a润滑油异构脱蜡装置生产的石脑油馏分、喷气燃料馏分及轻质加氢基础油性质进行试验分析，提出合理的利用方案，其中石脑油馏分可生产分析纯石油醚，喷气燃料馏分可生产特种煤油与铝箔轧制油，轻质加氢基础油可生产变压器油、高档白油以及果冻蜡。

This thesis studies the volcanic tectono-petrofacies, petrology, mineralogy, geochemistry, isotopic chronology, stratum and high-precision SHRIMP zircon U-Pb datings of the Mt.Yandangshan volcano-intrusive complex, and concludes that: Yandangshan volcanic rock units belong to high-K calc-alkaline acid rock associations, mainly ryholitic and trachytic dacitic in composition. They have A/CNK values of 0.9-1.2 (i.e., aluminium saturation and supersaturation), enriched LREE and LILEs and depleted HFSE. Their 8Eu values are 0.11-0.32, indicating a evident fractional evolution of plagioclase crystallization. Their ∑REE varied very limitedly,(87~Sr/(86)Sri ratios and eNd values are 0.7086～0.7095 and -10.20～-9.96 for volcanic rocks, and 0.7087~0.7095 and -7.6～6.92 for the central intrusive facies syenite, which means that all the igneous rocks from Mt. Yandangshan are evolutional products of magmas with the same source, and that they derived mainly from crust, but mixed with mantle components.

本文从火山构造岩相学、岩石学、矿物学、地球化学、同位素年代学、地层学等方面出发，同时结合高精度SHRIMP锆石U-Pb定年，对雁荡山火山岩进行了系统的研究，确定雁荡山火山岩为一套以流纹质和粗面英安质为主体的高钾钙碱性酸性岩石组合，A/CNK值集中在0.9～1.2之间，为铝饱和或铝过饱和类型；富轻稀土元素和大阳离子亲石元素、相对亏损高场强元素：负铕异常明显，δEu值为0.11～0.32，表明岩浆经历了以斜长石为主的强烈结晶分异作用：岩石样品的∑REE变化有限，火山岩样品的~(87Sr/~(86)Sr_i为0.7086～0.7095，εNd为-10.20～-9.96，中央侵入体石英正长岩~(87Sr/~(86)Sr_i为0.7087～0.7095，εNd为-7.6～-6.92，表明它们是同源岩浆分异演化的产物，物质来源主要为陆壳，但有地幔物质参与。

The main products are: series and high aluminum phosphate, clay, acid-resistant, wear-resistant series, periclase, spinel series; magnesium branded series, lightweight insulation series, and a variety of on line monolithic castables, ramming play materials and the production and supply of raw materials.

主要产品有：磷酸盐系列及高铝，粘土，耐酸，耐磨系列，方镁石，尖晶石系列；镁烙系列，轻质保温系列，及多种上不定形系耐火浇注料，捣打料及各原材料的生产和供应。

There are four kinds of traditional Chinese medicine often being used: removing carrion medicine, promoting blood flow medicine, warming yang medicine and stypsis medicine. Clinical practice and animal experiment both proved that topical used TCM had preferable curative effect on CSU.

临床常用的外用中药有四类：祛腐类药物，如轻粉、红粉、雄黄、砒石等；活血类药物，如乳香、没药、血竭、三七、琥珀、大黄等；温补类药物，如人参、黄芪、鹿茸、肉桂等；敛口生肌类药物，如炉甘石、珍珠粉、煅石膏等。

The light-weight magnesite-alumina spinel refractories was synthesized by the way of one step sintering, and the effect of the light magnesia powder and the alumina powder addition on its sinterability was studied.

分别考察了添加轻烧氧化镁及氧化铝微粉对一步煅烧法制备的镁铝尖晶石轻质耐火材料烧结性能的影响。

Main products: high-intensity light mullite insulation firebrick HS, light-bleaching clay brick, high aluminum light-brick, diatomite brick, I-III-class quality high-alumina, with carbonation BF Silica brick, silicon carbide composite roof panels, pillars, oxides of silicon carbide products, PA-80 high temperature adhesive, BL-2 refractory castable, GNT series of brick and corundum castable series, Ramming materials, such as more than 10 Series of dozens of species of stereotypes / refractory and stereotypes based on user needs, customer design and production of refractory prefabricated units.

主要产品有：高强度轻质莫来石绝热耐火砖HS、轻质粘土漂珠砖、高铝聚轻砖、硅藻土砖、I-III级重质高铝、高炉用碳化硅砖、碳化硅复合棚板、立柱、氧化物结合碳化硅制品、PA-80耐高温胶粘剂、BL-2耐火浇注料、GNT系列刚玉质砖及浇注料系列、捣打料等十几个系列几十个品种的定型/不定型耐火材料并可根据用户需要，为顾客设计和制作各种耐火材料预制构件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。