Synthesis technology of trimethyl orthoformate

A technology of trimethyl orthoformate and a synthesis process, which is applied in the preparation of organic compounds, chemical instruments and methods, organic chemistry and other directions, can solve the problems of high safety requirements, the need for refrigeration devices and the like, and achieves low cost and processing reaction. mild effects

Inactive Publication Date: 2017-07-14
临沭县华盛化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process uses highly toxic hydrocyanic acid as a raw material, requires a refrigeration devi

Method used

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  • Synthesis technology of trimethyl orthoformate
  • Synthesis technology of trimethyl orthoformate

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0020] The synthetic technique of trimethyl orthoformate, it comprises following operation:

[0021] React post:

[0022] (1) Preparatory work

[0023] 1. Check whether the motor is in a normal state, jog the stirring to check the direction of rotation, use the frequency converter to adjust the stirring speed, and check whether the mirror light is powered on.

[0024] 2. Check the bottom valve and feeding valve of the reactor to see if they are closed, and whether the switching status of other valves is correct.

[0025] 3. ③ Check whether the control valves, electronic scales and instruments are sensitive and easy to use, and whether the on-site data display is consistent and accurate with the central control room.

[0026] 4. Check whether the reactor is clean and dry, whether the brine supply is normal, and whether the tail gas absorption device can be used normally.

[0027] 5. Check whether each raw material measuring tank is prepared, and whether the prepared material...

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PUM

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Abstract

The invention belongs to the technical field of trimethyl orthoformate, and discloses a synthesis technology of trimethyl orthoformate. The technology comprises the following steps: 1, proportioning; 2, crystallization salt formation, and alcoholysis; and 3, distillation. The synthesis technology has the advantages of good environmental protection property, energy saving, emission reduction, realization of large-scale industrial production, and high purity of the synthesized product.

Description

technical field [0001] The invention belongs to the technical field of trimethyl orthoformate, in particular to a synthesis process of trimethyl orthoformate. Background technique [0002] Trimethyl orthoformate, also known as Trimethyloxymethane, referred to as Methyl orthoformate, is a colorless liquid with a pungent smell, flammable, decomposes when it meets water, and is soluble in ethanol and ether Wait. It is an important intermediate in organic synthesis, used in the synthesis of various medicines, dyes and spices. [0003] At present, the synthesis of trimethyl orthoformate mainly includes the following methods: (1) two-step method technology: using chloroform and sodium methoxide as raw materials to synthesize trimethyl orthoformate in two steps; (2) one-step method technology: one-step method uses chloroform , methanol, and sodium hydroxide as raw materials, and tributylbenzyl ammonium chloride (PTC) as a phase transfer catalyst, that is, to realize the transfer ...

Claims

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Application Information

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IPC IPC(8): C07C41/60C07C43/32
CPCC07C41/60C07C43/32
Inventor 赵志刚刘厚华张志虎王建林刘庆华张思果田川
Owner 临沭县华盛化工有限公司
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