3,7-二辛基-10H-吩噻嗪 | 6044-61-7

• 物质功能分类: 化学试剂 - 有机试剂 - 肼
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻嗪类
• 中文名称: 3,7-二辛基-10H-吩噻嗪
• 英文名称: Dioctylphenothiazin
• 英文别名: 3,7-di-n-octylphenothiazine；3,7-dioctyl-10H-phenothiazine；3,7-dioctylphenothiazine；10H-Phenothiazine, 3,7-dioctyl-；3,7-dioctyl-10H-phenothiazine
• CAS: 6044-61-7
• 化学式: C₂₈H₄₁NS
• 分子量: 423.706
• InChiKey: STGFANHLXUILNY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  11.7
• 重原子数：
  30
• 可旋转键数：
  14
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

文献信息

• Process for producing aliphatic carboxylic acid
  申请人：Nippon Shokubai Co., Ltd.

  公开号：US20040254398A1

  公开（公告）日：2004-12-16

  It is an object of the present invention to provide a process for producing aliphatic carboxylic acid, which can stabilize operation of a distillation column upon production of aliphatic carboxylic acid by reducing a water content in an aqueous aliphatic carboxylic acid solution by a distillation column, and can shorten a time during the non-steady state such as at starting up of distillation column operation. The present invention is directed to a process for producing aliphatic carboxylic acid, which comprises an azeotropic distillation step of supplying an aqueous aliphatic carboxylic acid solution and an azeotropic solvent to an azeotropic distillation column to perform distillation, separating an azeotrope containing the azeotropic solvent and water as a distillate, and recovering aliphatic carboxylic acid with a reduced water content as bottom liquid, characterized in that a target value of an amount of the azeotropic solvent to be supplied is set depending on an amount of water in the aqueous aliphatic carboxylic acid solution supplied to the azeotropic distillation column, and the amount of the azeotropic solvent to be supplied is controlled at the target value.

  本发明的目的是提供一种生产脂肪族羧酸的方法，通过在蒸馏塔中减少水含量来稳定脂肪族羧酸的生产过程，并缩短非稳态状态（如蒸馏塔操作启动时）的时间。本发明涉及一种生产脂肪族羧酸的方法，包括供应含水脂肪族羧酸溶液和共沸溶剂至共沸蒸馏塔进行蒸馏的共沸蒸馏步骤，分离含有共沸溶剂和水的共沸物作为馏出物，并以减少水含量的脂肪族羧酸作为底液回收，其特征在于根据供应至共沸蒸馏塔的含水脂肪族羧酸溶液中的水量设定共沸溶剂的供应量目标值，并控制共沸溶剂的供应量达到目标值。
• PROCESS FOR PRODUCING (METH)ACRYLIC ACID OR (METH)ACROLEIN
  申请人：MITSUBISHI CHEMICAL CORPORATION

  公开号：EP1752437A1

  公开（公告）日：2007-02-14

  An object of the present invention is to provide a method for producing (meth)acrylic acid or (meth)acrolein by conducting a gas phase catalytic oxidation reaction with an oxygen-containing gas using as a raw material at least one substance to be oxidized selected from propylene, propane, isobutylene and (meth)acrolein using a multi-tubular reactor, which enables a high yield and stable production even when operating constantly with supplying the raw material in the maximum supply amount acceptable by the reactor or an amount close thereto. The invention is a method for producing (meth)acrylic acid or (meth)acrolein wherein, at the time of a start-up of the reaction, for a period of at least 20 hours or more after the supply amount of the raw material to the reactor per unit time reached 30% or more of the acceptable maximum supply amount of the raw material per unit time, the supply amount of the raw material per unit time is kept at 30% or more and less than 80% of the acceptable maximum supply amount.

  本发明的目的是提供一种通过使用多管式反应器，利用丙烯、丙烷、异丁烯和（甲基）丙烯醛中至少一种氧化物质作为原料，通过气相催化氧化反应使用含氧气体，即使在以反应器可接受的最大供应量或接近该量供应原料的情况下持续运行，也能实现高产率和稳定生产的方法。 该发明是一种生产（甲基）丙烯酸或（甲基）丙烯醛的方法，其中，在反应启动时，当单位时间内供应给反应器的原料量达到单位时间内可接受的最大供应量的30%或更多时，保持单位时间内的原料供应量为30%或更多，但小于可接受的最大供应量的80%。
• [EN] AZAPHENOTHIAZINES AND AZAPHENOXAZINES AS ANTIOXIDANTS<br/>[FR] AZAPHÉNOTHIAZINES ET AZAPHÉNOXAZINES EN TANT QU'ANTIOXYDANTS
  申请人：UNIV OTTAWA

  公开号：WO2018165760A1

  公开（公告）日：2018-09-20

  The present disclosure relates generally to antioxidants. More particularly, the present disclosure relates to lubricating compositions comprising an antioxidant.

  本公开涉及抗氧化剂。更具体地说，本公开涉及含有抗氧化剂的润滑剂组合物。
• Process for producing (meth) acrylic acid
  申请人：Mitsubishi Chemical Corporation

  公开号：US20040225151A1

  公开（公告）日：2004-11-11

  In a process for producing (meth)acrylic acid comprising contacting a reaction gas containing (meth)acrylic acid obtained by gas-phase catalytic oxidation with an absorbent solvent to prepare a (meth)acrylic acid solution; and introducing the (meth)acrylic acid solution into a distillation column to purify (meth)acrylic acid, after a dissolved oxygen concentration in the (meth)acrylic acid solution to be introduced into the distillation column is adjusted to not less than 12 ppm by weight, the (meth)acrylic acid solution is fed to the distillation column. In addition, upon an azeotropic dehydration distillation step, a phenol-based polymerization inhibitor is fed to an azeotropic dehydration distillation column from a position not lower than a raw material feed stage thereof, and a copper-based polymerization inhibitor is fed to the azeotropic dehydration distillation column from a position lower than the raw material feed stage. According these methods, the production of polymers of (meth)acrylic acid and polymerization clogging in the distillation column are prevented, so that it is possible to stably purify (meth)acrylic acid by distillation for a long period of time.

  在生产（甲基）丙烯酸的过程中，包括将通过气相催化氧化获得的含有（甲基）丙烯酸的反应气体与吸收溶剂接触，制备（甲基）丙烯酸溶液；并将（甲基）丙烯酸溶液引入蒸馏塔以纯化（甲基）丙烯酸，在将要引入蒸馏塔的（甲基）丙烯酸溶液中溶解氧浓度调整至不低于12 ppm重量后，将（甲基）丙烯酸溶液送入蒸馏塔。此外，在共沸脱水蒸馏步骤中，从不低于原料进料阶段的位置向共沸脱水蒸馏塔中加入苯酚类聚合抑制剂，并从低于原料进料阶段的位置向共沸脱水蒸馏塔中加入铜基聚合抑制剂。通过这些方法，可以防止（甲基）丙烯酸的聚合物生成和蒸馏塔中的聚合物堵塞，从而可以长时间稳定地通过蒸馏纯化（甲基）丙烯酸。
• Method of purifying (meth)acrylic acid
  申请人：Yada Shuhei

  公开号：US20060205979A1

  公开（公告）日：2006-09-14

  A crude acrylic acid-containing liquid containing acrylic acid is distilled in a distillation column to obtain a condensate of acrylic acid having an acrylic acid purity of 90% or more, and an oxygen-containing gas (air) containing oxygen is supplied to the condensate of acrylic acid in a reflux tank for receiving the condensate of acrylic acid. The present invention can efficiently produce high purity (meth)acrylic acid by preventing formation of a polymerized product of (meth)acrylic acid in the condensate obtained in production of high purity (meth)acrylic acid through distillation.

  将含有丙烯酸的粗丙烯酸液体在精馏塔中蒸馏，以获得丙烯酸纯度为90%或更高的丙烯酸冷凝液，并将含氧气的气体（空气）供给到丙烯酸冷凝液的回流罐中，用于接收丙烯酸冷凝液。通过在生产高纯度（甲基）丙烯酸的过程中防止在精馏中获得的丙烯酸冷凝液中形成（甲基）丙烯酸聚合产物，本发明可以有效地生产高纯度（甲基）丙烯酸。