CN218371769U - Titanium white metatitanic acid bleaching system - Google Patents
Titanium white metatitanic acid bleaching system Download PDFInfo
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- CN218371769U CN218371769U CN202222856805.9U CN202222856805U CN218371769U CN 218371769 U CN218371769 U CN 218371769U CN 202222856805 U CN202222856805 U CN 202222856805U CN 218371769 U CN218371769 U CN 218371769U
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Abstract
The utility model discloses a titanium white metatitanic acid bleaching system, which comprises a bleaching tank, wherein the bleaching tank is sequentially connected with a filter, a washing tank and a wastewater disposal basin through pipelines, and the filter is also connected with the wastewater disposal basin; the top of the bleaching tank is respectively connected with an organic reducing agent storage tank through a reducing agent pump and connected with an acid material storage tank through an acid material pump. Not only can reduce the occupied area of equipment, but also can reduce the increase of cost, and is favorable for protecting the environment.
Description
Technical Field
The utility model belongs to the chemical industry field, concretely relates to titanium white metatitanic acid bleaching system.
Background
In titanium white production, a common method is to use aluminum powder for reduction, and reduce insoluble ferric hydroxide doped in metatitanic acid into soluble ferrous hydroxide, which is the most extensive and mature main process method used by titanium white production enterprises in sulfuric acid process in China, but aluminum powder is flammable and explosive hazardous chemical product, and flammable hydrogen can be generated in the reaction process, so that great potential safety hazards exist in storage and use, sulfur dioxide gas generated in the reaction pollutes the environment, the use temperature of the aluminum powder needs to be controlled in the bleaching process, and equipment for treating tail gas, such as a dust remover, a sprayer and the like, is added, so that the environment-friendly operation cost is increased. Because a large amount of sulfuric acid must be added in the aluminum powder bleaching process, the added sulfuric acid can eliminate environmental hazards only by adding lime for neutralization treatment in the sewage treatment process, and the difficulty of equipment and operation for treating the sulfuric acid is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiency of the background art, the utility model aims to overcome the technical insufficiency, provide a titanium white metatitanic acid bleaching system, both can reduce equipment area, the increase that can reduce the cost again is favorable to the protection of environment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a titanium white metatitanic acid bleaching system comprises a bleaching tank, wherein the bleaching tank is sequentially connected with a filter, a water washing tank and a wastewater pool through pipelines, and the filter is also connected with the wastewater pool; the top of the bleaching tank is respectively connected with an organic reducing agent storage tank through a reducing agent pump and connected with an acid material storage tank through an acid material pump.
A thermometer, a stirring device, a pH tester and a heating pipe are arranged in the bleaching tank. The metatitanic acid is heated by a heating pipe arranged in the bleaching tank, and the stirring device can uniformly heat the slurry and can also uniformly mix the slurry with the reducing agent; meanwhile, the temperature in the tank is tested by the thermometer, the pH value of the slurry can be detected by the pH tester in real time, and the adding amount of the acid is adjusted at any time.
And a flow meter and a valve are arranged on a pipeline between the acid material pump and the bleaching tank and a pipeline connecting the reducing material pump and the bleaching tank. The adding amount and proportion of the acid material and the reducing agent are adjusted through a flow meter and a valve. The organic reducing agent needs to reduce high-valence metal ions under the weak acid condition, so when the pH value in the metatitanic acid is higher, the flow of the acid is regulated through a valve to reach the required pH value.
Metatitanic acid in the bleaching tank is mixed with a reducing agent from an organic reducing agent storage tank, and zinc sulfoxylate formaldehyde as an organic reducing agent rapidly undergoes an oxidation-reduction reaction with high-valence metal ions at 40-50 ℃ under the condition of weak acid, so that high-valence harmful ions in metatitanic acid can be rapidly reduced into a low-valence soluble state. The organic reducing agent has the characteristic of environmental protection, is very easy to dissolve in metatitanic acid slurry, and has no residue in the product through reduction and washing. In the aqueous solution, the complex reaction with metal ions does not occur, and the pollution of ammonia, nitrogen and sulfur can not be caused when the catalyst is applied to production. And (3) filtering the reduced metatitanic acid by using a filter, discharging the wastewater into a wastewater pool, washing the obtained solid metatitanic acid with water, discharging the wastewater into the wastewater pool, and utilizing the washed metatitanic acid in the next step.
Has the beneficial effects that:
the utility model discloses a titanium white metatitanic acid bleaching system cancels the trivalent titanium preparation process, and the bleaching system is simplified.
In the process of preparing the trivalent titanium, concentrated sulfuric acid is used, meanwhile, a large amount of hydrogen is generated due to violent reaction of aluminum powder, the danger is high, and the potential safety hazard is eliminated by using the reducing agent in the organic reducing agent storage tank in the system. The use amount of sulfuric acid is reduced, the construction of environment-friendly equipment is reduced, the generated acidic wastewater is reduced, and the solid waste production amount of red gypsum is reduced.
Meanwhile, the system does not generate smoke, so that smoke treatment pipelines and equipment are not required to be arranged.
Drawings
Figure 1 is the titanium dioxide metatitanic acid bleaching system of the utility model.
Wherein, 1, bleaching tank; 2. a filter; 3. a water washing tank; 4. a wastewater tank; 5. a reducing agent pump; 6. an organic reducing agent storage tank; 7. an acid material pump; 8. an acid material storage tank; 11. a thermometer; 12. a stirring device; 13. a pH tester; 14. heating a tube; 15. a flow meter; 16. and (4) a valve.
Detailed Description
In order to make the technical field better understand the solution of the present invention and to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention is described in detail with reference to the embodiments.
Example 1
A titanium white metatitanic acid bleaching system, a bleaching tank 1 is connected with a filter 2, a washing tank 3 and a wastewater tank 4 in sequence through pipelines, and the filter 2 is connected with the wastewater tank 4; the top of the bleaching tank 1 is respectively connected with an organic reducing agent storage tank 6 through a reducing agent pump 5 and is connected with an acid material storage tank 8 through an acid material pump 7. A thermometer 11, a stirring device 12, a pH tester 13 and a heating pipe 14 are arranged in the bleaching tank 1.
And a flow meter 15 and a valve 16 are arranged on a pipeline between the acid material pump 7 and the bleaching tank 1 and a pipeline connecting the reducing material pump 5 and the bleaching tank 1.
Metatitanic acid in the bleaching tank is mixed with a reducing agent from an organic reducing agent storage tank, a pH tester detects the pH value in the bleaching tank, and proper acid exists in metatitanic acid generally, so that the reduction reaction can be directly carried out. When the pH value meets the reaction condition, acid is not required to be added; when the pH is higher, the valve is adjusted to add acid. Under the condition of weak acid, the organic reducing agent zinc formaldehyde sulfoxylate and high-valence metal ions are heated to 40-50 ℃ in a heating pipe to rapidly generate oxidation-reduction reaction, and high-valence harmful ions in metatitanic acid can be rapidly reduced to be in a low-valence soluble state. And (3) filtering the reduced metatitanic acid by using a filter, discharging the wastewater into a wastewater pool, washing the obtained solid metatitanic acid with water, discharging the wastewater into the wastewater pool, and utilizing the washed metatitanic acid in the next step.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A titanium white metatitanic acid bleaching system comprises a bleaching tank (1), and is characterized in that the bleaching tank (1) is sequentially connected with a filter (2), a washing tank (3) and a wastewater pool (4) through pipelines, and the filter (2) is connected with the wastewater pool (4); the top of the bleaching tank (1) is respectively connected with an organic reducing agent storage tank (6) through a reducing agent pump (5) and connected with an acid material storage tank (8) through an acid material pump (7).
2. The titanium white metatitanic acid bleaching system according to claim 1, wherein a thermometer (11), a stirring device (12), a pH tester (13), and a heating pipe (14) are arranged in the bleaching tank (1).
3. The titanium white metatitanic acid bleaching system according to claim 1, wherein a flow meter (15) and a valve (16) are arranged on a pipeline between the acid material pump (7) and the bleaching tank (1) and a pipeline between the reducing material pump (5) and the bleaching tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222856805.9U CN218371769U (en) | 2022-10-28 | 2022-10-28 | Titanium white metatitanic acid bleaching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222856805.9U CN218371769U (en) | 2022-10-28 | 2022-10-28 | Titanium white metatitanic acid bleaching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218371769U true CN218371769U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222856805.9U Active CN218371769U (en) | 2022-10-28 | 2022-10-28 | Titanium white metatitanic acid bleaching system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218371769U (en) |
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2022
- 2022-10-28 CN CN202222856805.9U patent/CN218371769U/en active Active
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