Inorganic coating device for titanium dioxide in laboratory

By designing a spherical glass bottle and a laboratory titanium dioxide inorganic envelope device with Cock volumetric flask, multi-factor control of the envelope paste is achieved, solving the problem of cumbersome operation of the existing device, and improving the experimental efficiency and envelope effect.

CN223112851UActive Publication Date: 2025-07-18CHONGQING VANADIUM TITANIUM TECH CO LTD OF PANGANG GRP +1
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Patent Information

Application Number
CN202421950160.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-07-18
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

The existing titanium dioxide inorganic coating devices are difficult to control multiple influencing factors at the same time under laboratory conditions, such as the pH, temperature, stirring of the coating paste, which leads to cumbersome operation and affects the coating effect.

Method used

A laboratory titanium dioxide inorganic envelope device including spherical glass bottles, spherical volumetric flasks with Cock, PH meter and thermometer is designed to achieve integrated and streamlined control of the temperature, pH value and flow rate of the envelope paste through gravity self-flow and precise control of the flow rate, combined with water bath heating and stirring device.

Benefits of technology

It improves the efficiency and accuracy of titanium dioxide coating experiments, forms a uniform and dense coating layer, improves the performance of titanium dioxide, such as dispersion and weather resistance, simplifies the operation process, and reduces energy consumption and complexity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of titanium dioxide experimental equipment, in particular to an inorganic coating device for titanium dioxide in a laboratory, which comprises a spherical glass bottle, a coating layer and a coating layer. At least one spherical volumetric flask with a cock, wherein the spherical volumetric flask with the cock is communicated with the bottleneck of the spherical glass bottle through a feeding pipe; the PH meter, the stirring meter and the thermometer are arranged in the spherical glass bottle through the bottle opening; wherein the horizontal plane where at least one spherical volumetric flask with the cock is located is higher than the horizontal plane where the spherical glass bottle is located. According to the device, the integration and simplification of various functions of controlling the heating temperature of coating slurry, monitoring the PH value, controlling the dosage and the flow rate of coating liquid and the like during inorganic coating of titanium dioxide are realized, the whole device is comprehensive in function and convenient to operate and use, and the experiment efficiency and accuracy are greatly improved.
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Description

Technical Field

[0001] The utility model relates to the field of titanium dioxide experimental equipment, in particular to a laboratory titanium dioxide inorganic coating device. Background Art

[0002] As an important white pigment, titanium dioxide is widely used in coatings, plastics, papermaking and other industries. In order to improve its performance, such as weather resistance and dispersibility, inorganic coating treatment is often required. The inorganic coating device for titanium dioxide slurry commonly used under laboratory conditions still has room for optimization in terms of functionality. Among them, since the inorganic coating process generally involves 2-4 liquid chemicals that need to be added to the titanium dioxide slurry, and the pH, temperature, stirring, etc. of the coating slurry need to be controlled, the design of the inorganic coating device is often complex in structure and cumbersome in operation, and it is difficult for a simple device to control multiple influencing factors at the same time, thus affecting the coating results. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a laboratory titanium dioxide inorganic coating device to solve the problem that the prior coating cannot take into account the control of multiple factors.

[0004] The utility model provides a laboratory titanium dioxide inorganic coating device, comprising:

[0005] A spherical glass bottle, the spherical glass bottle comprising at least one bottle mouth;

[0006] At least one spherical volumetric flask with a cork, wherein the spherical volumetric flask with a cork is connected to the bottle mouth of the spherical glass bottle through a feeding tube;

[0007] A pH meter, a stirrer and a thermometer are placed in the spherical glass bottle through the bottle mouth;

[0008] Wherein, the horizontal plane where at least one of the spherical volumetric flasks with a cork is located is higher than the horizontal plane where the spherical glass bottle is located.

[0009] In some embodiments, the laboratory titanium dioxide inorganic coating apparatus further comprises a water bath;

[0010] The spherical glass bottle is arranged in a water bath pot for water bath heating.

[0011] In some embodiments, the laboratory titanium dioxide inorganic coating device further includes a heating device and a main support;

[0012] The water bath is arranged on the heating device;

[0013] The heating device is arranged on the main support;

[0014] Clamp the spherical glass bottle through the clamping part of the main bracket.

[0015] In some embodiments, the device for inorganic coating of laboratory titanium dioxide also includes a bracket;

[0016] The spherical volumetric flask with a cock is clamped by the bracket.

[0017] In some embodiments, the spherical glass bottle is arranged to hold titanium dioxide slurry.

[0018] In some embodiments, the pH meter is used to monitor the pH of the liquid inside, and the pH range is 8 - 10.

[0019] In some embodiments, the stirring device is used to stir the liquid inside the spherical glass bottle.

[0020] In some embodiments, the thermometer is used to monitor the temperature of the liquid inside, and the temperature range is 50 - 100 °C.

[0021] In some embodiments, the spherical volumetric flask with a cock is arranged to hold the coating agent, and the spherical volumetric flask with a cock above the horizontal plane where the spherical glass bottle is located is used to control the flow rate and dosage of the coating agent.

[0022] In some embodiments, the number of the bottle mouths is at least three and the number of the spherical volumetric flasks with a cock is three. The thermometer, the stirring device and the pH meter are respectively located in different bottle mouths, and the bottle mouth with the thermometer is connected to one spherical volumetric flask with a cock, and the bottle mouth with the pH meter is connected to two spherical volumetric flasks with a cock.

[0023] The beneficial effects of the present utility model are:

[0024] The device for inorganic coating of laboratory titanium dioxide according to the present utility model includes: a spherical glass bottle, the spherical glass bottle includes at least one bottle mouth; at least one spherical volumetric flask with a cock, the spherical volumetric flask with a cock is communicated with the bottle mouth of the spherical glass bottle through a feeding pipe; a pH meter, a stirrer and a thermometer placed into the spherical glass bottle through the bottle mouth; wherein, the horizontal plane where at least one of the spherical volumetric flasks with a cock is located is higher than the horizontal plane where the spherical glass bottle is located.

[0025] The device described in this application realizes the integration and streamlining of various functions such as controlling the heating temperature of the coating slurry, monitoring the pH value, and controlling the dosing and flow rate of the coating liquid during the inorganic coating of titanium dioxide. The entire device has comprehensive functions and is convenient to operate, which can greatly facilitate the relevant control of users during the titanium dioxide coating experiment and significantly improve the efficiency and accuracy of the experiment. This utility model is particularly applicable to the titanium dioxide coating experiment. Brief Description of the Drawings

[0026] To better understand this utility model, reference can be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily drawn to scale, and relevant elements may be omitted, or in some cases, the scale may have been enlarged to emphasize and clearly show the novel features described herein. Additionally, as known in the art, the system components may be arranged differently. Furthermore, in the drawings, the same reference numerals represent corresponding parts throughout several views.

[0027] Figure 1 A reference schematic diagram showing a device for inorganic coating of titanium dioxide in a laboratory of this utility model is shown;

[0028] Description of the reference numerals: 1, spherical glass bottle; 2, pH meter; 3, stirring; 4, thermometer; 5, water bath; 6, heating device; 7, main bracket; 8, spherical volumetric flask with a stopcock; 9, bracket. Detailed Embodiments

[0029] It should be understood that the embodiments of this utility model shown in the exemplary embodiments are merely illustrative. Although only a few embodiments of this utility model have been described in detail, those skilled in the art can easily understand that various modifications are feasible without substantially departing from the teachings of the subject matter of this utility model. Accordingly, all such modifications should be included within the scope of this utility model. Other substitutions, modifications, variations, and deletions can be made to the design, operating conditions, and parameters, etc. of the following exemplary embodiments without departing from the gist of this utility model.

[0030] This utility model provides a device for inorganic coating of titanium dioxide in a laboratory, including: a spherical glass bottle 1, the spherical glass bottle 1 includes at least one bottle mouth; at least one spherical volumetric flask 8 with a stopcock, the spherical volumetric flask 8 with a stopcock is communicated with the bottle mouth of the spherical glass bottle 1 through a feeding pipe; a pH meter 2, a stirring device 3, and a thermometer 4 placed into the spherical glass bottle 1 through the bottle mouth; wherein, the horizontal plane where at least one spherical volumetric flask 8 with a stopcock is located is higher than the horizontal plane where the spherical glass bottle 1 is located.

[0031] Utilizing gravity flow can reduce the dependence on pumps or other power equipment, lower operation complexity and energy consumption. This natural flow method can also control the flow rate through a cock, making it easier to achieve automated control and improve production efficiency. The coating agent flows evenly from a higher position into the titanium dioxide container, which helps to form a uniform and dense coating layer on the surface of titanium dioxide particles. This uniform coating can significantly improve the properties of titanium dioxide, such as dispersibility, weather resistance, etc. Through gravity flow, the coating agent can come into contact with titanium dioxide particles more fully, reduce the agglomeration phenomenon between particles, and improve the overall quality of the product.

[0032] The device described in this application has successfully optimized the experimental device. By optimizing the equipment and making a reasonable layout, it solves the requirements for heating the coating slurry, monitoring the pH value, and monitoring the temperature when inorganic powders such as titanium dioxide are inorganically coated. At the same time, it controls the dosage and flow rate of the added coating liquid, thus greatly improving the experimental accuracy and experimental efficiency. The technical advantages of this device are very obvious, and the market promotion prospect is very broad.

[0033] In some embodiments, refer to Figure 1 , the device described in this application further includes a water bath 5; the spherical glass bottle 1 is arranged in the water bath 5 for water bath heating.

[0034] The main component of titanium dioxide is titanium dioxide TiO2, and its chemical properties are stable. Generally, it does not react chemically with other substances. As a mild heating method, water bath heating can avoid chemical reactions that may be caused by direct high-temperature heating, thus maintaining the chemical stability of titanium dioxide. Although titanium dioxide has relatively high heat resistance, too high a temperature may still cause changes in its properties. Water bath heating uses water as a heat transfer medium to transfer heat evenly and mildly to the titanium dioxide in the glass bottle, avoiding the generation of local high temperatures, thereby reducing the risk of titanium dioxide decomposition due to high temperatures. The temperature of water bath heating can be precisely controlled by adjusting the water temperature, which enables the temperature to be adjusted at any time according to needs during the heating process to meet different experimental or production requirements.

[0035] In some embodiments, refer to Figure 1 , the device described in this application further includes a heating device 6 and a main bracket 7; the water bath 5 is arranged on the heating device 6; the heating device 6 is arranged on the main bracket 7; the spherical glass bottle 1 is clamped by the clamping part of the main bracket 7.

[0036] The main bracket 7 takes into account the size and weight of the water bath 5 and the heating device 6, enabling the two to be stably placed on it, thus saving experiments and making the entire heating system more compact and orderly. Placing the water bath and the heating device on the bracket helps to achieve unified management of the entire heating system, including temperature control, time setting, etc., improving the standardization and efficiency of experiments or production.

[0037] The main bracket 7 firmly clamps the spherical glass bottle 1, preventing it from shaking, toppling or breaking during heating, oscillation or transportation. This stability is crucial for protecting the reagent in the spherical glass bottle 1, avoiding losses or dangers caused by accidental breakage. Through the clamping action of the main bracket 7, the spherical glass bottle 1, the water bath 5 and the heating device 7 can be neatly arranged in a limited space, saving the space of the experimental bench. This space optimization makes the working environment cleaner and more orderly, which is conducive to improving work efficiency and safety. It can ensure that the spherical glass bottle 1 is heated evenly. This helps to improve the accuracy and reliability of experimental results, or ensure the quality and consistency of the produced products.

[0038] In some embodiments, refer to Figure 1 , the device described in the present application further includes a bracket 9; the spherical volumetric flask 8 with a stopcock is clamped by the bracket 9.

[0039] The spherical volumetric flask 8 with a stopcock is a special laboratory container. Its design combines the precise measurement function of a volumetric flask and the convenient operation characteristics of a stopcock. The spherical volumetric flask 8 with a stopcock inherits the precise measurement characteristics of a volumetric flask and can accurately prepare a solution with a certain volume and accurate concentration. It can ensure that at a specified temperature, when the concave liquid surface of the liquid is tangent to the scale line on the neck of the volumetric flask, the volume of the solution is exactly equal to the volume marked on the bottle. By simply rotating the stopcock, the flow of the liquid can be controlled, avoiding the cumbersome process of repeatedly pouring and transferring the solution in a traditional volumetric flask. The design of the stopcock also helps to reduce the chance of contact between the solution and the external environment during the transfer process, thereby reducing the risk of contamination.

[0040] In some embodiments, refer to Figure 1 , the spherical glass bottle 1 is arranged to be used for placing titanium dioxide slurry.

[0041] The spherical glass bottle 1 has high transparency, enabling clear observation of the state changes of the titanium dioxide slurry during the coating process, such as color, viscosity, etc., which helps to timely adjust the experimental conditions. The bottle mouth design of the spherical glass bottle 1 makes operations such as the addition and stirring of the coating liquid more convenient, improving the flexibility of the experiment. The material of the spherical glass bottle 1 is stable, not easily chemically reactive with the titanium dioxide slurry, and has a smooth surface that is easy to clean, ensuring the repeatability and accuracy of the experiment. The spherical shape of the spherical glass bottle 1 helps to achieve uniform stirring and dispersion of the titanium dioxide slurry, thereby ensuring that the coating substance can uniformly cover the surface of the titanium dioxide particles, forming a uniform coating layer. When conducting the coating experiment in the spherical glass bottle 1, it is more convenient to control the experimental conditions, such as temperature, pH value, stirring speed, etc., to ensure the stability and repeatability of the coating process.

[0042] In some embodiments, refer to Figure 1 , the pH meter 2 is used to monitor the pH of the internal liquid, and the pH range is 8 - 10.

[0043] The probe of the pH meter 2 realizes real-time detection of the pH value of the liquid in the spherical glass bottle 1. The pH meter 2 adopts advanced electrode method and digital processing technology, capable of achieving high-precision measurement of the solution pH value. This is crucial for experiments and production processes that require precise control of acidity and alkalinity. Compared with the traditional test paper method, the pH meter 2 has higher measurement accuracy and reliability, capable of meeting more stringent quality control requirements. The advanced pH meter 2 has an automatic temperature compensation function, which can automatically adjust the measurement results according to different measurement temperatures, ensuring that the accuracy of the measurement results is not affected by temperature. The pH meter 2 can monitor the pH value of the solution in real time and continuously, without the need for frequent manual sampling and measurement, greatly improving the operation convenience. By promptly capturing the changes in the pH value and taking corresponding adjustment measures, the continuous and stable operation of the production line can be ensured, thereby improving production efficiency.

[0044] In some embodiments, refer to Figure 1 , the stirring device 3 is used to stir the internal liquid and is placed through the middle bottle mouth.

[0045] The stirring device 3 can evenly disperse the titanium dioxide slurry and the coating material, enabling the coating substance to uniformly cover the surface of the titanium dioxide particles and avoiding the phenomenon of over-thick or over-thin coating in local areas. This helps to form a uniform and dense coating layer and improve the coating effect. The process of using the stirring device 3 helps to increase the contact opportunities between the coating substance and the titanium dioxide particles, promoting the adsorption and deposition of the coating substance on the surface of the titanium dioxide particles. This helps to accelerate the coating process and shorten the coating time. The operation of the stirring device 3 is relatively simple, and the control of the coating process can be achieved by simply adjusting the stirring speed and stirring time. This simplifies the complexity of the coating operation and reduces the operation difficulty. The stirring device 3 can adjust its working state at any time according to the needs of the coating process, such as increasing the stirring intensity to accelerate the coating process or reducing the stirring speed to avoid excessive aggregation of the coating material. This flexibility helps to better control the coating process and improve the coating effect. Under the stirring condition, the negative impact on the crystals caused by the eddy current can be eliminated, making the crystal growth more uniform, reducing the generation of distorted crystals with distorted shapes, and improving the crystal quality. The use of the stirring device 3 during the coating process can also eliminate the influence of the eddy current on the titanium dioxide particles, making the coating process more stable. The stirring device 3 helps to eliminate the difference in supersaturation between crystal planes, making the crystal size distribution more uniform. During the coating process, the stirring device 3 can also control the particle size distribution of the coating substance, avoiding obvious particle aggregation or void phenomena in the coating layer.

[0046] In some embodiments, refer to Figure 1 , the thermometer 4 is used to monitor the temperature of the internal liquid, and the temperature range is 50 - 100 °C.

[0047] Based on the reading of the thermometer 4, the opening degree of the heating device 6 is adjusted. The opening degree value is a quantitative index directly reflecting the working efficiency of the heating device. A reasonable opening degree value can ensure that the heating device operates in a state of neither overworking nor being overly idle, thereby improving the energy utilization efficiency. By adjusting the opening degree value, the operating state of the heating device can be optimized. For example, increase the opening degree value when rapid heating is required, and appropriately reduce the opening degree value after reaching the set temperature to maintain temperature stability.

[0048] Thermometer 3 can accurately measure the temperature during the coating process to ensure that the temperature is controlled within a preset range. This is essential for experiments and production processes that require strict temperature control to optimize the coating effect. Thermometer 3 can monitor the temperature changes during the coating process in real time, promptly detect and adjust the temperature deviation, and avoid the adverse effects of temperature fluctuations on the coating effect. By monitoring the temperature through thermometer 3, it can be adjusted to the optimal reaction temperature, promote the adsorption and deposition of the coating material, and improve the coating efficiency and quality. Too high a temperature may cause the coating material to decompose or the titanium dioxide particles to agglomerate, affecting the coating effect; too low a temperature may slow down the coating reaction rate and prolong the coating time. The use of thermometer 3 helps to avoid these extreme situations. Accurately controlling the temperature during the coating process helps to form a uniform and dense coating layer, thereby improving the performance and stability of titanium dioxide, such as weather resistance and dispersibility. The improvement of these properties will be directly reflected in the quality and performance of the final product. By monitoring the temperature through thermometer 3, it can be ensured that each batch of titanium dioxide is subjected to the same temperature treatment during the coating process, thereby ensuring the consistency and stability between product batches. The use of the thermometer 3 is relatively simple, and only needs to be placed in the film coating environment and the temperature can be read, which simplifies the complexity of the film coating operation and reduces the difficulty of operation.

[0049] In some embodiments, see Figure 1 The spherical volumetric flask 8 with a cock is used to place the coating agent.

[0050] The coating agent ABC is added by a spherical volumetric flask 8 with a cock placed on a stand, and the process is simple, easy to control and operate. The coating agent may contain volatile components, and the sealing design with a cock can effectively prevent the volatilization of these components and maintain the purity and stability of the coating agent. The sealed container can also reduce the contamination of the coating agent by external impurities, ensuring the cleanliness of the coating process and the quality of the product.

[0051] In some embodiments, see Figure 1 A spherical volumetric flask 8 with a cock which is higher than the horizontal plane where the spherical glass bottle 1 is located is used to control the flow rate and amount of the coating agent.

[0052] The spherical design can provide a larger capacity space, and with precise scales or markings, it is convenient to measure the required amount of coating agent to ensure the accuracy of experiments or production.

[0053] The cock can accurately control the speed and amount of coating agent addition. This adjustment method is more sophisticated than simple switch control and can achieve fine-tuning of the flow rate to avoid the impact of excessive or insufficient amounts on the coating effect.

[0054] Once the opening degree of the cock is set, the spherical volumetric flask can output the coating agent at a relatively stable flow rate, reducing the fluctuations and instability of the flow rate. This is particularly important for processes that require precise control of the coating layer thickness and uniformity. A stable flow rate helps to achieve uniform distribution of the coating agent, avoiding local over-thickness or under-thickness during the coating process. This helps to form a uniform and dense coating layer, improving the coating effect. Precise control of the flow rate can also reduce waste of the coating agent. When the flow rate is too fast, the coating agent may be sprayed excessively and lost; while when the flow rate is too slow, it may lead to an extended coating process and poor results. By adjusting the cock opening degree to control the flow rate, it can ensure that the coating agent is fully utilized.

[0055] During the coating process, if it is necessary to adjust the flow rate according to the actual situation, such as changing the coating layer thickness or adjusting the coating speed, the operator can quickly achieve this by adjusting the cock opening degree. This ability to adjust in real time improves the flexibility and convenience of the operation.

[0056] In one embodiment, the number of bottle mouths is at least three and the number of the spherical volumetric flasks 8 with cocks is three. The thermometer 4, the stirring device 3, and the pH meter 2 are respectively located in different bottle mouths. The bottle mouth provided with the thermometer 4 is connected to one spherical volumetric flask 8 with a cock, and the bottle mouth provided with the pH meter 2 is connected to two spherical volumetric flasks 8 with cocks. Multiple operations can be carried out simultaneously in different bottle mouths, such as measuring temperature, monitoring pH value, and stirring the solution, etc., thus improving the flexibility and efficiency of the operation. The spherical volumetric flasks 8 with cocks are easy to control the inflow and outflow of the solution, facilitating operations such as sampling, adding reagents, or replacing the solution. The thermometer 4 and the pH meter 2 are both precision instruments. If directly affected or interfered by the stirring device 3, they may be damaged or affect the measurement accuracy. When replacement is needed, only the corresponding bottle mouth needs to be operated, without affecting the normal operation of other parts.

[0057] Compared with the prior art, the present utility model includes a heating device 6, using a water bath 5 to conduct heat; the jacket heating device 6 with a temperature control system and the water bath 5 ensure the uniformity of the temperature of the heated liquid; a spherical glass bottle 1 with four openings is arranged inside, a stirring device is arranged above the spherical glass bottle 1. The stirring device 3 includes a speed control device for controlling the stirring speed. The stirring device 3 enters the spherical glass bottle 1 through one of the middle glass bottle mouths. The pH meter 2 and the thermometer 4 are arranged inside the spherical glass bottle 1. Three spherical volumetric flasks with cocks are used and are respectively placed on three brackets.

[0058] The device described in this application integrates various monitoring indicators in the titanium dioxide coating process, precisely controls and adjusts to simplify the complexity of the coating operation, reduces the operation difficulty, and makes it easier for operators to get started. It has the ability to adjust the temperature, pH, and flow rate in real time, enabling operators to quickly make adjustments according to the actual situation during the coating process, improving the flexibility and convenience of the operation, greatly streamlining the experimental equipment, and also improving the experimental efficiency.

[0059] The above embodiments are possible examples of the implementation manners of the present utility model, and are only given to enable those skilled in the art to clearly understand the principle of the present utility model. Those skilled in the art should understand that the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope (including the claims) of the disclosure of the embodiments of the present utility model is limited to these examples. Under the overall concept of the present utility model, the technical features between the above embodiments or different embodiments can also be combined with each other, and many other variations in different aspects of the embodiments of the present utility model as described above will be generated. For the sake of brevity, they are not provided in the specific implementation manners. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included within the scope of protection required by the present utility model.

Claims

1. An apparatus for inorganic coating of titanium dioxide in a laboratory, characterized in that, Comprising: A spherical glass bottle (1), said spherical glass bottle (1) comprising at least one bottle mouth; At least one spherical volumetric flask with a stopcock (8), said spherical volumetric flask with a stopcock (8) being communicated with the bottle mouth of said spherical glass bottle (1) through a feeding tube; A pH meter (2), a stirring device (3) and a thermometer (4) placed into said spherical glass bottle (1) through the bottle mouth; Wherein, the horizontal plane where at least one of said spherical volumetric flasks with a stopcock (8) is located is higher than the horizontal plane where said spherical glass bottle (1) is located.

2. The device for inorganic coating of laboratory titanium dioxide according to claim 1, characterized in that, It further comprises a water bath (5); Said spherical glass bottle (1) is arranged in the water bath (5) for water bath heating.

3. The device for inorganic coating of laboratory titanium dioxide according to claim 2, wherein, It further comprises a heating device (6) and a main bracket (7); Said water bath (5) is arranged on said heating device (6); Said heating device (6) is arranged on said main bracket (7); Said spherical glass bottle (1) is clamped by the clamping part of said main bracket (7).

4. The device for inorganic coating of laboratory titanium dioxide according to claim 1, characterized in that, It further comprises a bracket (9); Said spherical volumetric flask with a stopcock (8) is clamped by said bracket (9).

5. The device for inorganic coating of laboratory titanium dioxide according to claim 1, wherein Said spherical glass bottle (1) is arranged to place titanium dioxide slurry.

6. The device for inorganic coating of laboratory titanium dioxide according to claim 1, characterized in that, Said pH meter (2) is used to monitor the pH of the liquid inside said spherical glass bottle (1), and the pH range is 8 - 10.

7. The device for inorganic coating of laboratory titanium dioxide according to claim 1, wherein Said stirring device (3) is used to stir the liquid inside.

8. The device for inorganic coating of laboratory titanium dioxide according to claim 1, wherein Said thermometer (4) is used to monitor the temperature of the liquid inside, and the temperature range is 50 - 100 °C.

9. The device for inorganic coating of laboratory titanium dioxide according to claim 1, wherein Said spherical volumetric flask with a stopcock (8) is used to place coating agent, and the spherical volumetric flask with a stopcock (8) higher than the horizontal plane where said spherical glass bottle (1) is located is used to control the flow rate and addition amount of the coating agent.

10. The device for inorganic coating of laboratory titanium dioxide according to claim 9, characterized in that, The number of said bottle mouths is at least three, and the number of said spherical volumetric flasks with a stopcock (8) is three. Said thermometer (4), said stirring device (3) and said pH meter (2) are respectively located in different bottle mouths, and the bottle mouth provided with said thermometer (4) is connected to one spherical volumetric flask with a stopcock (8), and the bottle mouth provided with said pH meter (2) is connected to two spherical volumetric flasks with a stopcock (8).