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Method for improving production efficiency of vacuum crystallization for titaniferous solution

A technology of vacuum crystallization and production efficiency, applied in the direction of solution crystallization, ferric sulfate, etc., to achieve the effects of low cost, improved production efficiency, and reduced production energy consumption

Active Publication Date: 2012-10-31
LOMON BILLIONS GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the feed temperature and negative pressure conditions of the existing titanium liquid vacuum crystallization

Method used

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Effect test

Embodiment

[0014] The feed temperature of vacuum crystallization of titanium liquid is 50~60°C, and the discharge temperature of thermal concentration is 75°C. According to the principle of adiabatic evaporation of the solution, steam is used as the driving force, and it is ejected at high speed through the jet pump by means of flash evaporation. , the static pressure energy is converted into kinetic energy to generate a vacuum, and the moisture in the titanium liquid in the vacuum crystallization tank evaporates under negative pressure conditions, and the heat is removed by the vaporization heat, so that the temperature of the titanium liquid is lowered, and ferrous sulfate is crystallized. With the continuous evaporation of water, the supersaturation of the solution is also continuously increased, and ferrous iron is continuously precipitated, and the supersaturated part is formed as FeSO containing seven crystal waters. 4 ·7H 2 The form of O is crystallized out, and at the same time, ...

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Abstract

The invention discloses a method for improving the production efficiency of vacuum crystallization for titaniferous solution, wherein the method comprises a titaniferous solution vacuum crystallization process and a titaniferous solution hot concentration process; the hot concentration discharging temperature is higher than the feeding titaniferous solution temperature for the titaniferous solution vacuum crystallization; heat exchange is carried out between feeding titaniferous solution for the titaniferous solution vacuum crystallization and discharging material for the titaniferous solution hot concentration; and then the feeding titaniferous solution that is processed through heat exchange is conveyed to a titaniferous solution vacuum crystallization container for crystallization. The method adopts the technical scheme that the conventional production temperatures and negative pressure conditions are utilized to perform the heat exchange between the feeding material for the titaniferous solution vacuum crystallization and the discharging material for the hot concentration, and the feeding temperature for the titaniferous solution vacuum crystallization is raised, so that the time for titaniferous solution boiling is shortened without changing the negative pressure conditions, the crystallization time of titaniferous solution in the vacuum crystallization container is shortened, and the production efficiency of vacuum crystallization for titaniferous solution can be improved further.

Description

technical field [0001] The invention relates to a method for improving the production efficiency of vacuum crystallization, in particular to a method for improving the production efficiency of titanium liquid vacuum crystallization. Background technique [0002] Vacuum crystallization is based on the principle of adiabatic evaporation of the solution, using steam as the driving force, and using the flash evaporation method to eject it at high speed through a jet pump, converting static pressure energy into kinetic energy to generate a vacuum, and the titanium liquid in the vacuum crystallization tank The water in the titanium is evaporated under the negative pressure condition, and the heat is taken away by the vaporization heat, so that the temperature of the titanium liquid is lowered, and the ferrous sulfate crystallizes and precipitates. With the continuous evaporation of water, the supersaturation of the solution is also continuously increased, and ferrous iron is conti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/14B01D9/02
Inventor 杨民乐陈建立陈彦君陈晓丽赵波
Owner LOMON BILLIONS GRP CO LTD
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