亚硫酸镁 | 791574-55-5

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 碱土金属氧阴离子化合物
• 中文名称: 亚硫酸镁
• 英文名称: magnesium sulfite
• 英文别名: magnesium sulphite；florisil；magnesium;sulfite
• CAS: 791574-55-5
• 化学式: Mg*O₃S
• 分子量: 104.369
• InChiKey: JESHZQPNPCJVNG-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -1.38
• 重原子数：
  5
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  82.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  亚硫酸镁 在 H₂O 作用下， 以 水 为溶剂， 生成
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Mg: MVol.B2, 5, page 209 - 211

  摘要：

  DOI：
• 作为产物：
  描述：

  magnesium sulfite hexahydrate 以 neat (no solvent, solid phase) 为溶剂， 生成 亚硫酸镁
  参考文献：
  名称：

  β-MnSO3·3H2O型水合物中的有序-无序相变：同位素效应-振动、X射线、热分析和介电常数

  摘要：

  摘要 通过红外光谱研究了同晶型MSO 3 · 3H 2 O（M = Mg, Mn, Fe, Co, Ni, Zn, oP 56, β-MnSO 3 · 3H 2 O型）的低温相变，拉曼、X 射线、DSC 和介电常数测量。相变发生在两个连续的过程中：（i）从一种 H 2 O 分子（所有化合物）的动态无序中冻结和（ii）室温相的正交晶胞的单斜畸变，它仅具有在镁 (207 K)、锰 (217 K) 和钴 (230 K) 化合物的情况下得到了证明。观察到随着氘含量的增加，转变温度显着降低。

  DOI：

  10.1016/0040-6031(89)85321-3
• 作为试剂：
  描述：

  (3S,4R)-4-[(1R,2S,3R)-2,3-epoxycyclohexyl]-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one 在 sodium azide 、 亚硫酸镁 作用下， 以 甲醇 为溶剂， 反应 20.0h， 生成 (3S,4R)-4-((1R,2S,3S)-3-Azido-2-hydroxy-cyclohexyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-azetidin-2-one
  参考文献：
  名称：

  Synthesis and antimicrobial activity of 4-amino trinems

  摘要：

  This article deals with the study carried out on the synthesis of 4-amino substituted trinems 1 starting from the key-intermediate (3S,4R)-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-4-[(1'R, 2'S, 3'R)-1',2'-epoxycyclohex-3'-yl]azetidin-2-one 2. In particular, epoxide opening with various amines and subsequent cyclization to the corresponding trinems were explored. Their synthesis and antimicrobial activity are reported. Copyright (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/0960-894x(96)00292-2

文献信息

• Regenerable magnesium dry scrubbing
  申请人：The Babcock & Wilcox Company

  公开号：US05439658A1

  公开（公告）日：1995-08-08

  A method for cleaning a flue gas containing flyash, sulfur dioxide and other contaminants includes providing a slurry source having a slurry of primarily water, magnesium sulfite and magnesium hydroxide along with small quantities of magnesium sulfate and magnesium chloride. The flyash is first removed from the flue gas and the flue gas is sprayed with the slurry for forming reaction products in the flue gas. The reaction products are then collected from the flue gas and a first portion of the reaction products is provided to the slurry source. A remaining portion of the reaction products is heated for decomposing into sulfur dioxide and magnesium oxide. The magnesium oxide is then provided to the slurry source. Magnesium sulfate and magnesium chloride are purged from the slurry source.

  一种清洁含有飞灰、二氧化硫和其他污染物的烟气的方法包括提供一个泥浆源，该泥浆主要由水、亚硫酸镁和氢氧化镁的混合物以及少量的硫酸镁和氯化镁组成。首先从烟气中去除飞灰，然后在烟气中喷洒泥浆以形成反应产物。然后从烟气中收集反应产物，并将其中的一部分提供给泥浆源。剩余的反应产物加热分解为二氧化硫和氧化镁。然后将氧化镁提供给泥浆源。将泥浆源中的硫酸镁和氯化镁清除。
• Recovery of magnesia from oil shale
  申请人：Occidental Research Corporation

  公开号：US04260192A1

  公开（公告）日：1981-04-07

  Magnesium values are leached from a fragmented mass containing combusted oil shale particles. Magnesium is leached selectively with respect to calcium compounds and silicates with aqueous solutions of a mixture of purgeable, acid-forming gases such as carbon dioxide with a minor proportion of sulfur dioxide. A two-stage leaching process can employ leachant with dissolved carbon dioxide and sulfur dioxide in a first stage and with a carbon dioxide containing solution in the substantial absence of sulfur dioxide in the second stage. An enriched solution containing magnesium values is withdrawn from the fragmented mass and magnesia is recovered from such enriched solution. In one embodiment a fragmented permeable mass of formation particles containing oil shale and carbonates of calcium and magnesium is formed in an in situ oil shale retort. A combustion zone is advanced through the fragmented mass, whereby kerogen in oil shale in the fragmented mass is decomposed in a retorting zone on the advancing side of the combustion zone to produce gaseous and liquid products including shale oil, and particles containing retorted oil shale are combusted for converting magnesium values to more leachable form such as magnesium oxide. Such a process is also used for leaching combusted oil shale from above ground retorting and combustion.

  镁的价值从含有燃烧页岩颗粒的碎片质量中被浸出。镁被有选择性地浸出，相对于钙化合物和硅酸盐，使用一种混合的可净化、酸性气体的水溶液，例如二氧化碳和少量的二氧化硫。两阶段浸出过程可以在第一阶段使用溶解的二氧化碳和二氧化硫的浸出剂，在第二阶段使用含有二氧化碳的溶液，基本上不含二氧化硫。从碎片质量中提取含有镁价值的富集溶液，并从这样的富集溶液中回收氧化镁。在一种实施例中，形成了一个碎裂渗透的地层颗粒质量，其中包含页岩和钙镁碳酸盐，在原位的页岩加热炉中。通过碎片质量中的燃烧区域推进，使得碎片质量中的页岩在炼制区域中分解，产生包括页岩油的气体和液体产品，然后燃烧含有炼制过的页岩的颗粒，以将镁价值转化为更易浸出的形式，例如氧化镁。这样的过程也用于从地面炼制和燃烧的燃烧页岩中浸出。
• Use of seawater in flue gas desulfurization
  申请人：Bechtel Group, Incorporated

  公开号：US04804523A1

  公开（公告）日：1989-02-14

  Efficient removal of sulfur dioxide from a flue gas stream is achieved in a scrubber using a recirculating aqueous stream containing magnesium hydroxide and magnesium sulfite which together act as SO.sub.2 absorbents. Magnesium sulfite is derived from magnesium hydroxide, which is the product of a reaction between soluble magnesium from the seawater and calcium hydroxide added to the scrubbing system. Magnesium sulfite and bisulfite are oxidized to magnesium sulfate by the introduction of air. Magnesium sulfate is converted back to magnesium hydroxide by reaction with additional calcium hydroxide, with gypsum as a by-product. Gypsum is soluble in large amounts of seawater and may be returned to the ocean without adverse environmental impact.

  在一个使用循环水流的洗涤器中，通过使用含有氢氧化镁和亚硫酸镁的循环水流来高效地从烟气流中去除二氧化硫，二者共同作为SO.sub.2吸收剂。亚硫酸镁来源于氢氧化镁，它是来自海水中可溶性镁和加入洗涤系统的氢氧化钙反应的产物。通过引入空气，亚硫酸镁和亚硫酸氢镁被氧化为硫酸镁。通过与额外的氢氧化钙反应，硫酸镁被转化回氢氧化镁，同时产生石膏作为副产品。大量的海水可以溶解石膏，不会对环境造成不利影响，可以返回到海洋中。
• Methods and apparatus for recovering gypsum and magnesium hydroxide
  申请人：Jones K. Dennis

  公开号：US20060251556A1

  公开（公告）日：2006-11-09

  The present invention provides methods and apparatus for treating flue gas containing sulfur dioxide using a scrubber, and more particularly relates to recovering gypsum and magnesium hydroxide products from the scrubber blowdown. The gypsum and magnesium hydroxide products are created using two separate precipitation reactions. Gypsum is crystallized when magnesium sulfate reacts with calcium chloride. Magnesium hydroxide is precipitated when magnesium chloride from the gypsum crystallization process reacts with calcium hydroxide. The process produces a high quality gypsum with a controllable pH and particle size distribution, as well as high quality magnesium hydroxide.

  本发明提供了使用洗涤器处理含二氧化硫的烟气的方法和设备，更具体地涉及从洗涤器废液中回收石膏和氢氧化镁产品。使用两个单独的沉淀反应创建了石膏和氢氧化镁产品。当硫酸镁与氯化钙反应时，石膏结晶。当来自石膏结晶过程的氯化镁与氢氧化钙反应时，氢氧化镁被沉淀。该过程产生具有可控pH值和粒度分布的高质量石膏，以及高质量的氢氧化镁。
• Process for desulfurizing a sulfur-dioxide containing gas
  申请人：Dravo Lime, Inc.

  公开号：US06099816A1

  公开（公告）日：2000-08-08

  A desulfurization process using magnesium sulfites in a clear solution has the discharge from a wet scrubbing unit passed to a reaction tank. A silica-containing solid particulate material, such as sand, is added to the reaction tank and lime is added to precipitate calcium sulfite solids onto the particulate material. The resulting solids, a calcium sulfite coated, silica containing solid particulate material is readily dewatered and may be used as a cement manufacturing process.

  一种使用清晰溶液中的硫代硫酸镁进行脱硫的工艺，将湿式洗涤装置的排放物通过反应罐处理。在反应罐中加入含硅的固体颗粒材料，例如沙子，并加入石灰以使钙亚硫酸盐沉淀到颗粒材料上。得到的固体物质是一种涂有钙亚硫酸盐的，含有硅的固体颗粒材料，易于脱水并可用于水泥制造过程。