菱镁矿

Major conclutions from this study can be summarized as following:1. On mineralogy, rutiles, apatites, epidotes and vein minerals from UHPM rocks were firstly and systematically studied, by detailed petrography and mineral-chemistry investigation, some mineral or mineral assemblage with special composions or texture were firstly found in UHPM rocks from Sulu-Dabie, for example, corrudum, magnesite, high-Ti biotite and garnet were found as inclusions in rutiles from eclogites, Nb-Fe rutile and zoned Si-Y apatite were found in gneiss, epidote / allanite with euhedral zones like magmatic genesis were found in elogites and gneiss, a lot of minerals with high REE, HFSE, LILE and volatiles were found in veins of gneiss.

在矿物学方面，首次较为系统地研究了超高压变质岩中的金红石、磷灰石、绿帘石等副矿物，并通过详细的岩相学和矿物化学研究，首次在苏鲁-大别超高压变质岩中发现了一些具有特殊成分/结构的矿物或矿物组合，如在榴辉岩金红石中发现了刚玉、菱镁矿、高钛黑云母和石榴石矿物包裹体，在片麻岩中发现了Nb-Fe金红石和具有自形环带结构的高Si-Y磷灰石，在榴辉岩和片麻岩中发现了具有类似岩浆成因的自形生长环带结构的绿帘石/褐帘石，在片麻岩的脉体中发现了大量富含稀土元素REE、高场强元素HFSE(Nb、Ta、Zr、Ti)、大离子亲石元素LILE(K、Th、U、Sr、Ba)，以及挥发性组份(CO_2、F、P、S)的特殊矿物，丰富并提升了超高压变质岩的矿物学研究。2。

XZM Ultrafine mill is a machine for producing fineness and ultra-powder. It is mainly used for grinding the materials whose hardness is middle and low, moisture below 6%, and Moths hardness should be blow 9 grade and non-explosion and non-flammability, such as: calcite, chalk, limestone, dolomite, kaolin, bentonite, steatite, mica, magnesite, illite, pyrophillite, vermiculite, meerschaum, attapulgite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate ore, potassium ore pumice, etc.

XZM 中速微粉磨是一种细粉及超细粉的加工设备，它主要适用于中、低硬度物料的研磨粉碎，如高岭土、石灰石、方解石、滑石、大理石、重晶石、石膏、白垩、白云石、膨润土、云母、菱镁矿、伊利石、叶腊石、蛭石、海泡石、凹凸棒石、累托石、硅藻土、石墨、明矾石、萤石、磷矿石、钾矿石、浮石等湿度小于6％，莫氏硬度在9级以下非易燃易爆的非金属物料。

The present invention is concerned with a method for the extraction of magnesium from magnesium-containing materials such as magnesite, dolomite and silicates materials like serpentine residues, products from the amphibole or pyroxene group.

本发明涉及一种从含镁原料萃取镁的方法，该含镁原料包括菱镁矿、白云石、含镁硅酸盐物质象蛇纹石残渣，来自角闪岩及辉石类的产品。

Usually use the natural magnesite and the sea water or the bittern on the preparation as the raw material.

镁砂是生产高级碱性耐火材料的原料，可用天然菱镁矿及海水或卤水作为原料进行制备。

The results of freezing evaporation show that, first hydromagnesite, and then mirabilite, nesquchonite, halite, epsomite, carnallite and bischofite separated, respectively.

冷冻-蒸发实验的结果是：首先析出水菱镁矿，然后是芒硝、三水菱镁矿、石盐、泻利盐、光卤石和水氯镁石。

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 research consists of three parts: First is to prepare the five high-purity synthetic evaporite minerals powders, including gypsum, calcite, chalcanthite, nitratine and hydromagnesite, and to verify their phases and purities by XRD. Second is to conduct a series of thermal decomposition experiments of the powders by TGA at various heating rates and isothermal condition.

实验设计上可分为三部分，首先准备符合石膏、方解石、胆矾、钠硝石与水菱镁矿等五种矿物成分之试药等级粉体，再以XRD确认其矿物相是否正确；第二部分以热重分析仪进行等升温与等温条件热分解实验；最后以三种动力学方法分析拟合热重分析所得到的反应数据。

According to a great amount of information on the magnesite deposit and long-term working experience in the study area, the author proposed that the origin of the magnesite deposit might have related to ultramafic rock .

在查阅大量的有关菱镁矿床成因的资料后，结合本人在该矿区长期工作所积累的经验，提出该菱镁矿的成因可能与超镁铁质岩有关。

On the view of crystallography, the forming process of crystal structure of MgO during the burning of magnesite and the effect on its chemical activity were discussed.

讨论了菱镁矿烟烧过程中MgO晶体结构的形成过程以及对MgO活性的影响，当菱镁矿的煅烧温度低于800℃时，由菱镁矿的晶体结构逐渐转变形成的MgO晶体结构中存在较多的缺陷，赋予MgO高的化学活性，这些缺陷位置是其与MgCl_2水溶液进行化学反应形成5.1.8相的物化活性点。

The characteristics of cryptocrystalline magnesite ore in Bameng Magnesite Mine were discussed.

论述了巴盟菱镁矿的特点，隐晶质菱镁矿多为热液交代型超基性岩类矿石，其基质致密坚硬，微细嵌布，杂质含量高，且有广泛类质同象，难以实现矿物单体解离，实际分选困难较大。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。