Lithium;2-carboxyphenolate;hydrate

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Lithium;2-carboxyphenolate;hydrate
• 英文别名: lithium;2-carboxyphenolate;hydrate
• 化学式: C7H7LiO4
• 分子量: 162.1
• InChiKey: SKQWWJVTSPXPSF-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -4.06
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  61.4
• 氢给体数：
  2
• 氢受体数：
  4

文献信息

• PRODUCTION METHOD FOR POLYACETAL COPOLYMER
  申请人：Polyplastics Co., Ltd.

  公开号：EP2927254A1

  公开（公告）日：2015-10-07

  Provided is a production method for a polyacetal copolymer that makes deactivation of a catalyst simple and efficient and that achieves a high polymerization yield and high quality using equipment that does not require a cleaning step and a process that involves a simple operation technique. The production method for a polyacetal copolymer uses trioxane as a main monomer (a) and a cyclic ether and/or a cyclic formal having at least one carbon-carbon bond as a comonomer (b). In the production method, a predetermined heteropoly acid is used as a polymerization catalyst (c) to perform copolymerization, a predetermined salt (d) is added to the reaction product, melt kneading processing is performed, and the polymerization catalyst (c) is deactivated. It is preferable that the heteropoly acid be selected from among phosphomolybdic acid, phosphotungstic acid, and the like. It is preferable that the salt (d) be selected from among sodium carbonate, sodium bicarbonate, sodium formate, and the like.

  本发明提供了一种聚缩醛共聚物的生产方法，该方法可使催化剂的失活变得简单而高效，并可利用无需清洗步骤的设备和涉及简单操作技术的工艺实现高聚合收率和高质量。聚缩醛共聚物的生产方法使用三氧杂环己烷作为主单体 (a)，环醚和/或至少有一个碳碳键的环醛作为共聚单体 (b)。在生产方法中，使用预定的杂多酸作为聚合催化剂（c）进行共聚，在反应产物中加入预定的盐（d），进行熔融捏合处理，并使聚合催化剂（c）失活。杂多酸最好选自磷钼酸、磷钨酸等。盐 (d) 最好选自碳酸钠、碳酸氢钠、甲酸钠等。
• PROCESS FOR PRODUCING POLYACETAL COPOLYMER
  申请人：Polyplastics Co., Ltd.

  公开号：EP3109266A1

  公开（公告）日：2016-12-28

  A process for producing a polyacetal copolymer, the process making catalyst deactivation easy and efficient, requiring no cleaning step, merely requiring simple equipment and simple operation techniques, and rendering a high polymerization yield and high quality possible. In the invention, trioxane as a major monomer (a) is copolymerized with one or more comonomers (b) that are a cyclic ether and/or cyclic formal having at least one carbon-carbon bond, using a nonvolatile protonic acid as a polymerization catalyst (c) at a polymerization environment temperature of 100°C or lower until the conversion reaches 50% and thereafter at a polymerization environment temperature in the range of 115°C to 140°C. This process includes: a crushing step in which a dry-process crusher is used to obtain a crude polyacetal copolymer (d2) crushed to such a degree that when the crude copolymer (d2) is screened with a sieve having an opening size of 11.2 mm, 90 parts by weight or more thereof passes therethrough; and a deactivation step in which a basic compound (e) is added to the ingredient (d2) and the mixture is melt-kneaded to thereby deactivate the ingredient (c).

  一种生产聚缩醛共聚物的工艺，该工艺使催化剂失活变得简单高效，不需要清洗步骤，只需要简单的设备和简单的操作技术，并使高聚合收率和高质量成为可能。在本发明中，使用不挥发性质子酸作为聚合催化剂（c），在 100°C 或更低的聚合环境温度下，将作为主要单体（a）的三氧六环与一种或多种共聚单体（b）进行共聚，共聚单体（b）是一种环醚和/或至少有一个碳-碳键的环状形式，直到转化率达到 50%，然后在 115°C 至 140°C 的聚合环境温度下进行共聚。该工艺包括：破碎步骤，使用干法破碎机获得粗聚缩醛共聚物（d2），破碎程度为当粗共聚物（d2）用开口尺寸为 11.2 毫米的筛子筛分时，90 份（重量）或更多的粗共聚物（d2）通过筛子；以及失活步骤，将碱性化合物（e）添加到成分（d2）中，并对混合物进行熔融捏合，从而使成分（c）失活。
• METHOD FOR PRODUCING POLYACETAL COPOLYMER
  申请人：Polyplastics Co., Ltd.

  公开号：EP3109267A1

  公开（公告）日：2016-12-28

  The purpose of the present invention is to provide a high-quality polyacetal copolymer economically advantageously by a simple process. The present invention comprises: a raw material supply step (S1) of supplying a raw material comprising trioxane, a comonomer capable of copolymerizing with trioxane and a non-volatile protonic acid to a reactor of a continuous stirring/mixing machine type; a polymerization reaction step (S2) of carrying out a polymerization reaction of the raw material to produce a reaction mixture; an unreacted monomer re-supply step (S3) of vaporizing an unreacted monomer to separate the unreacted monomer from the reaction mixture and supplying the unreacted monomer to the raw material supply step; a polyacetal copolymer collection step (S4) of collecting a polyacetal copolymer from the reaction mixture into a collection unit which is arranged downstream from a discharge port and is so adjusted as to have a gauge pressure of 0.2 kPa or more; and a deactivation step (S5) of adding a basic compound to the polyacetal copolymer that has been collected in the polyacetal copolymer collection step and then subjecting the resultant mixture to a meltkneading treatment to deactivate the non-volatile protonic acid.

  本发明的目的是通过简单的工艺提供一种经济实惠的高质量聚缩醛共聚物。本发明包括原料供应步骤（S1），向连续搅拌/混合机类型的反应器供应由三氧杂环己烷、可与三氧杂环己烷共聚的共聚单体和非挥发性质子酸组成的原料； 聚合反应步骤（S2），对原料进行聚合反应，生成反应混合物；未反应单体再供应步骤 (S3)，蒸发未反应单体，将未反应单体从反应混合物中分离出来，并将未反应单体供应给原料供应步骤； 聚缩醛共聚物收集步骤 (S4)，将反应混合物中的聚缩醛共聚物收集到一个收集装置中，该收集装置布置在出料口的下游，其表压为 0.2 kPa或以上；以及失活步骤(S5)，向在聚缩醛共聚物收集步骤中收集的聚缩醛共聚物中加入碱性化合物，然后将所得混合物进行熔融捏合处理，使不挥发性质子酸失活。
• PROCESS FOR PRODUCING POLYACETAL RESIN COMPOSITION
  申请人：Polyplastics Co., Ltd.

  公开号：EP3392307A1

  公开（公告）日：2018-10-24

  Provided is a polyacetal resin composition which is more versatile. In the present invention, an aliphatic polycarboxylic acid (e) having four or more carbons and two or more carboxyl groups and a hindered-phenol antioxidant (f) are incorporated into a polyacetal copolymer obtained by copolymerizing trioxane as a major monomer (a) with a cyclic ether and/or cyclic formal each having at least one carbon-carbon bond as a comonomer (b) using a specific heteropoly acid as a polymerization catalyst (c), adding, to the resultant reaction product, a compound (d) which is any of the carbonates, hydrogen carbonates, and carboxylates of alkali metal elements or alkaline-earth metal elements, the hydrates of these, and the hydroxides of alkali metal elements or alkaline-earth metal elements, and melt-kneading the mixture to deactivate the polymerization catalyst (c).

  本发明提供了一种用途更广的聚缩醛树脂组合物。在本发明中，将具有四个或四个以上碳原子和两个或两个以上羧基的脂肪族聚羧酸（e）和受阻酚抗氧剂（f）加入到聚缩醛共聚物中，聚缩醛共聚物是通过将三氧杂环己烷作为主要单体（a）与环状醚和/或环状甲醛作为共聚单体（b）共聚而成，环状醚和/或环状甲醛至少有一个碳-碳键作为共聚单体（b），并使用特定的杂多酸作为聚合催化剂（c）、在反应生成物中加入化合物 (d)，该化合物是碱金属元素或碱土金属元素的碳酸盐、碳酸氢盐和羧酸盐、这些元素的水合物以及碱金属元素或碱土金属元素的氢氧化物中的任何一种，并对混合物进行熔融捏合，使聚合催化剂 (c) 失活。
• Process for producing polyacetal resin composition
  申请人：Polyplastics Co., Ltd.

  公开号：US10577496B2

  公开（公告）日：2020-03-03

  A polyacetal resin composition. An aliphatic polycarboxylic acid having four or more carbons and two or more carboxyl groups and a hindered-phenol antioxidant are incorporated into a polyacetal copolymer obtained by copolymerizing trioxane as a major monomer with a cyclic ether and/or cyclic formal each having at least one carbon-carbon bond as a comonomer using a specific heteropoly acid as a polymerization catalyst, adding, to the resultant reaction product, a compound which is any of the carbonates, hydrogen carbonates, and carboxylates of alkali metal elements or alkaline-earth metal elements, the hydrates of these, and the hydroxides of alkali metal elements or alkaline-earth metal elements, and melt-kneading the mixture to deactivate the polymerization catalyst.

  一种聚缩醛树脂组合物。将具有四个或更多碳原子和两个或更多羧基的脂肪族聚羧酸和受阻酚抗氧剂加入到聚缩醛共聚物中，聚缩醛共聚物是通过使用特定杂多酸作为聚合催化剂，将作为主要单体的三氧杂环己烷与作为共聚单体的环醚和/或各自具有至少一个碳-碳键的环醛进行共聚而得到的、在反应生成物中加入碱金属元素或碱土金属元素的碳酸盐、碳酸氢盐、羧酸盐、这些元素的水合物、碱金属元素或碱土金属元素的氢氧化物中的任何一种化合物，并对混合物进行熔融捏合，使聚合催化剂失活。