Reacting and washing process and equipment for production of metatitanic acid from titanium dioxide slurry

A technology of reaction washing and metatitanic acid, applied in the direction of titanium compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of metatitanic acid discharge, metatitanic acid waste, etc., achieve less process steps, ensure recovery rate, control less conditional effect

Active Publication Date: 2016-10-12
YUNNAN LINYUAN SPICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When reacting and washing, the raw materials are processed in the reaction tank, but when removing the precipitated supernatant, it is now removed by siphon or removed from the discharge pipe in the middle of the reaction tank. The siphon is manually controlled and the position of the discharge pipe in the middle of the reaction tank is not easy to determine. , the metatitanic acid that is prone to precipitation is also discharged, resulting in waste of metatitanic acid

Method used

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  • Reacting and washing process and equipment for production of metatitanic acid from titanium dioxide slurry
  • Reacting and washing process and equipment for production of metatitanic acid from titanium dioxide slurry

Examples

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Embodiment 1

[0030] Such as figure 1 , figure 2 Shown, the reactive washing process in the production of metatitanic acid from titanium white pulp comprises the following steps:

[0031] A. Dilution: Put 700Kg of purchased titanium dioxide slurry into the washing tank 1, start the stirring device 2, open the water inlet valve 24, add 10 tons of water, and stir for 10 minutes;

[0032] B. Alkali addition reaction: open the lye valve 20 and add 30% NaOH solution, stir evenly to make the pH value reach 9-11, open the water inlet valve 24 and add 1500Kg water, stir for 10 minutes to clarify;

[0033] C, acid addition reaction: After 20-24 hours of precipitation, suck the supernatant liquid with the liquid suction device 3, then start the stirring device 2, open the acid liquid valve 22 during stirring to process industrial hydrochloric acid to make the pH value reach 5-7;

[0034] D. Water washing: Then open the water inlet valve 24 and add 2500Kg water, stir for 10 minutes, clarify, settl...

Embodiment 2

[0044] The reactive washing process in the production of metatitanic acid from titanium white pulp comprises the following steps:

[0045] A. Dilution: Put 750Kg of purchased titanium dioxide slurry into the washing tank, start the stirring device, open the water inlet valve, add 10 tons of water, and stir for 10 minutes;

[0046]B. Alkali addition reaction: open the lye valve and add 30% NaOH solution, stir evenly to make the pH value reach 9-11, open the water inlet valve and add 1500Kg water, stir for 10 minutes and then clarify;

[0047] C. Acid reaction: After 20-24 hours of precipitation, use a liquid suction device to absorb the supernatant, then start the stirring device, and open the acid valve to process hydrochloric acid during stirring to make the pH value reach 5-7;

[0048] D. Water washing: Then open the water inlet valve and add 2500Kg of water, stir for 10 minutes, clarify, after settling for 20-24 hours, use a liquid suction device to siphon off the supernata...

Embodiment 3

[0058] The reactive washing process in the production of metatitanic acid from titanium white pulp comprises the following steps:

[0059] A. Dilution: Put 800Kg of purchased titanium dioxide slurry into the washing tank, start the stirring device, open the water inlet valve, add 10 tons of water, and stir for 10 minutes;

[0060] B. Alkali addition reaction: open the lye valve and add 30% NaOH solution, stir evenly to make the pH value reach 9-11, open the water inlet valve and add 1500Kg water, stir for 10 minutes and then clarify;

[0061] C. Acid reaction: After 20-24 hours of precipitation, use a liquid suction device to absorb the supernatant, then start the stirring device, and open the acid valve to process hydrochloric acid during stirring to make the pH value reach 5-7;

[0062] D. Water washing: Then open the water inlet valve and add 2500Kg of water, stir for 10 minutes, clarify, after settling for 20-24 hours, use a liquid suction device to siphon off the supernat...

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Abstract

The invention belongs to the technical filed of production of metatitanic acid from titanium dioxide slurry and particularly relates to a reacting and washing process and equipment for production of metatitanic acid from the titanium dioxide slurry. The reacting and washing process for production of metatitanic acid from the titanium dioxide slurry is characterized by comprising the following steps: A, dilution; B, alkali-added reaction; C, acid-added reaction; D, washing. The reacting and washing equipment for production of metatitanic acid from the titanium dioxide slurry is characterized by comprising a washing tank (1), a stirring device (2), a liquid absorbing device (3), an alkali liquor tank (4), an acid liquor tank (5) and a water tank (6). The process comprises a few steps and a few control conditions, the equipment is simple in structure and convenient to operate, reactions are sufficient, and the recovery rate and quality of metatitanic acid precipitates are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of producing metatitanic acid from titanium white pulp, and in particular relates to a reaction washing process and equipment for producing metatitanic acid from titanium white pulp. Background technique [0002] When turpentine is used as the main raw material to process and produce borneol, β-pinene, α-pinene and rough brain, etc., metatitanic acid is used as a catalyst to cause isomerization of α-pinene. However, metatitanic acid should be stored in a cool and dry warehouse. The packaging should be sealed and moisture-proof. Handle with care when loading and unloading to prevent damage to the package. Therefore, the general production enterprises purchase titanium white pulp to produce metatitanic acid. [0003] When using titanium white slurry to produce metatitanic acid, first add NaOH solution and remove the supernatant after the reaction is completed, then add HCl solution after the reaction is com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00
CPCC01G23/00
Inventor 张黎伟曾类文张黎明普国文张文俊
Owner YUNNAN LINYUAN SPICES
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