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Method for quickly preparing sodium phenate

A sodium phenate, fast technology, applied in the field of rapid preparation of sodium phenate, can solve the problems of unsafe use, lengthy process, cumbersome method, etc., achieve low cost, solve carbonization deterioration, and simple process

Inactive Publication Date: 2017-01-11
TIANJIN GUANGFU TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first two methods use expensive sodium metal and sodium amide, which are very expensive. In addition, sodium metal and sodium amide are dangerous goods and are very unsafe to use.
The third method is to use sodium chloride. The generated hydrogen chloride is easy to react with phenol, and water is generated in the system, which promotes the decomposition of sodium phenate. Although it has been improved, adding alkaline substances or performing electrolysis, the method is cumbersome
The fourth method is to use sodium hydroxide to react directly with phenol, but using toluene as the water-carrying agent requires long-term reflux dehydration, and the excess sodium hydroxide needs to be removed by recrystallization with ketone, which is lengthy and costly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of method for preparing sodium phenate rapidly, concrete steps are as follows:

[0024] ⑴Phenol (content ≥ 99%) 100g, heated and melted to 100°C;

[0025] (2) Slowly add 42.5 g of solid sodium hydroxide (content ≥ 99%) under stirring,

[0026] (3) Continue to keep warm for 1 hour after adding to obtain sodium phenate.

[0027] (4) Sodium phenate is dried at 100-120°C, and the yield is 100%.

Embodiment 2

[0029] A kind of method for preparing sodium phenate rapidly, concrete steps are as follows:

[0030] (1) Heat 1000g of phenol (content ≥ 99%) to 120°C to melt;

[0031] (2) Slowly add 425g of solid sodium hydroxide under stirring;

[0032] (3) heat preservation for 3 hours after completion of the reaction;

[0033] (4) Drying at 100°C for 2 hours, the yield is 99.5%.

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PUM

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Abstract

The invention relates to a method for quickly preparing sodium phenate. The method comprises the following steps: (1) heating phenol with qualified content to a melting state; (2) slowly adding equimolar solid sodium hydroxide under stirring; (3) after complete reaction, maintaining heat for 1 to 3 hours; and (4) carrying out drying at 100 to 120 DEG C. According to the method in the invention, since sodium hydroxide directly reacts with phenol, a dehydrating agent and recrystallization are not needed, and qualified sodium phenate is synthesized in one shot; and the method has the advantages of low cost, short preparation time and high product quality.

Description

technical field [0001] The invention belongs to the technical field of organic chemical preparation, and specifically provides a method for rapidly preparing sodium phenate. Background technique [0002] Sodium phenoxide is also called sodium phenoxide, sodium phenoxide, and sodium phenolate. Sodium phenolate is a good catalyst for organic reactions, and is widely used in reactions such as condensation, rearrangement, and ring opening, and can also be used as a phase transfer catalyst. Sodium phenate is also an important intermediate in organic synthesis, used as an intermediate in the synthesis of medicines, pesticides, dyes, etc. Sodium phenate is also an active oxidant and can also be used as a preservative. [0003] From the beginning of the 20th century, sodium phenate began to be used in organic synthesis. In the middle of the 20th century, with the development of anionic polymerization theory, sodium phenate played a great role in anion-regulated polymerization. [...

Claims

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Application Information

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IPC IPC(8): C07C39/235C07C37/66
CPCC07C37/66C07C39/235
Inventor 赵鹏张勇
Owner TIANJIN GUANGFU TECH DEV