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Preparation method of hexafluoroisopropanol

A technology of hexafluoroisopropanol and hexafluoroacetone, which is applied in the field of preparation of hexafluoroisopropanol, can solve the problems that the preparation method needs to be improved and the efficiency is not high

Pending Publication Date: 2021-11-30
江苏福赛乙德药业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The efficiency of the traditional preparation of hexafluoroisopropanol is not high, and the preparation method needs to be improved

Method used

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  • Preparation method of hexafluoroisopropanol
  • Preparation method of hexafluoroisopropanol
  • Preparation method of hexafluoroisopropanol

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] Such as Figure 1-4 Shown, the preparation method of a kind of hexafluoroisopropanol of the present invention comprises the following steps:

[0035] Step 1: Pour hexafluoroacetone water and hexafluoroisopropanol into the temperature stirring equipment in proportion, start the temperature stirring equipment and stir the mixture of hexafluoroacetone water and hexafluoroisopropanol for 10min-25min , during the stirring process, the stirring equipment is stabilized for heating, and the mixture of hexafluoroacetone water and hexafluoroisopropanol is heated, and the heating temperature is 90°C-150°C;

[0036]Step 2: After the hexafluoroacetone water and hexafluoroisopropanol are mixed, add the catalyst to the temperature stirring equipmen...

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Abstract

The invention belongs to the technical field of hexafluoroisopropanol, and particularly relates to a preparation method of hexafluoroisopropanol, which comprises the following steps: 1, proportionally pouring hexafluoroacetone water and hexafluoroisopropanol into a temperature stirring device, and heating the stirring device in the stirring process at the heating temperature of 90-150 DEG C; 2, mixing hexafluoroacetone water with hexafluoroisopropanol, then adding a catalyst into the temperature stirring equipment, and heating the interior of the temperature stirring equipment; 3, introducing a mixed gas of hydrogen and nitrogen into the temperature stirring equipment; and 4, carrying out pressure relief on the interior of the temperature stirring equipment, discharging internal gas after the internal gas passes through filtering equipment, and then introducing a liquid mixture in the temperature stirring equipment into the reaction equipment for reaction, so as to prepare hexafluoroisopropanol.

Description

technical field [0001] The invention belongs to the technical field of hexafluoroisopropanol, and in particular relates to a preparation method of hexafluoroisopropanol. Background technique [0002] Hexafluoroisopropanol (1,1,1,3,3,3-hexafluoro-2-propanol) is used as an intermediate in pharmaceuticals and agrochemicals, as a solvent or as a cleaning agent in electronic devices, and as a Its ability to dissolve a wide variety of polymers is used in analytical applications. HFIP exhibits strong hydrogen bonding and will bind and dissolve most molecules with accepting sites such as oxygen, double bonds, or amine groups. Forms stable distillable complexes with many ethers or amines due to strong hydrogen bonds. HFIP is soluble in water and most organic solvents. It is a volatile (boiling point 58.2° C.) and polar substance with high density, low viscosity and low surface tension. Today, the efficiency of the traditional preparation of hexafluoroisopropanol is not high, and ...

Claims

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Application Information

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IPC IPC(8): C07C29/145C07C31/38B01F11/00B01F13/10B01F3/02B01F23/10
CPCC07C29/145C07C31/38
Inventor 何春雷马宇辉
Owner 江苏福赛乙德药业有限公司
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