CN110631949A - Method for evaluating grinding performance of titanium dioxide primary product by sulfuric acid process - Google Patents
Method for evaluating grinding performance of titanium dioxide primary product by sulfuric acid process Download PDFInfo
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Abstract
The invention belongs to the technical field of sulfate process titanium dioxide production, and particularly relates to a method for evaluating the grinding performance of a sulfate process titanium dioxide primary product. Aiming at the problems of poor grinding effect of the existing medium powder and the like, the invention provides a method for evaluating the grinding performance of a sulfate process titanium dioxide primary product, which comprises the following steps: weighing a sulfuric acid method titanium dioxide primary product Mg, and pre-grinding or rolling and grinding until oversize materials of 200 meshes account for 40-60%; weighing surfactant, adding the surfactant into water for dissolving, adding the sulfuric acid process titanium dioxide primary product, and stirring uniformly; adjusting the pH value of the solution to 9-11, and then stirring at a high speed; adding zirconia beads, and grinding at high speed; grinding and filtering, drying the titanium dioxide on the sieve, weighing the dried titanium dioxide into mg, calculating the residue on the sieve, and judging the grinding performance of the primary titanium dioxide product by the sulfuric acid process according to the residue on the sieve. The method is simple to operate and low in cost, and can quickly provide a certain technical support for evaluating the grinding performance of the sulfuric acid process titanium dioxide primary product and selecting the medium powder process and equipment for the primary products with different grinding performances.
Description
Technical Field
The invention belongs to the technical field of sulfate process titanium dioxide production, and particularly relates to a method for evaluating the grinding performance of a sulfate process titanium dioxide primary product.
Background
The main processes for producing the titanium white by the sulfuric acid method at present are the sulfuric acid method and the chlorination method, wherein the primary titanium white produced by the chlorination method can be subjected to post-treatment only by simple dispersion, and the primary titanium white produced by the sulfuric acid method needs to be ground into medium powder and then subjected to post-treatment. The primary titanium dioxide product obtained by the sulfuric acid process is obtained by calcining metatitanic acid in a rotary kiln at high temperature, wherein titanium dioxide particles have strong adhesion and are agglomerated together, and the grinding performance of the primary titanium dioxide product can be directly influenced by the agglomeration force. Different production enterprises may have different calcining processes, salt treatment formulas, calcined seed crystal addition and quality of hydrolyzed metatitanic acid, so that the titanium dioxide crude product obtained by each enterprise sulfuric acid method titanium dioxide production line has different grinding performances.
At present, the grinding performance of the titanium white crude product is evaluated in the industry mostly by experience without a scientific guiding method, the grinding effect of the medium powder cannot be effectively guaranteed, the grinding effect of the medium powder is poor, and finally the pigment performance and the application performance of the titanium white product are adversely affected, especially the dispersibility and the cleanliness of the titanium white product are affected.
If the grinding performance of the primary titanium white product by the sulfuric acid process can be evaluated, whether the process and equipment combination can meet the process index requirements or not can be evaluated, scientific basis is provided for selecting more reasonable medium powder process and equipment combination, and in addition, the invention can provide a judgment method for the change of the grinding performance of the primary titanium white product by the sulfuric acid process.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the prior art lacks a method for evaluating the grinding performance of a titanium dioxide crude product, and has the problems of poor medium powder grinding effect and the like.
The technical scheme for solving the technical problems comprises the following steps: provides a method for evaluating the grinding performance of a sulfuric acid process titanium dioxide crude product.
The method comprises the following steps:
weighing a sulfuric acid method titanium dioxide primary product Mg, and pre-grinding or rolling and grinding until oversize materials of 200 meshes account for 40-60%; weighing a surfactant which accounts for 0.2-0.3% of the weight of the sulfuric acid process titanium dioxide primary product, adding the surfactant into water to dissolve the surfactant, adding the sulfuric acid process titanium dioxide primary product, and uniformly stirring; adjusting the pH value of the solution to 9-11, and then stirring at a high speed; adding zirconia beads, and grinding at high speed; grinding and filtering, drying the titanium dioxide on the sieve, weighing the dried titanium dioxide into M, calculating the residue on the sieve, wherein the residue w is M/M100%, and judging the grinding performance of the sulfuric acid method titanium dioxide primary product according to the residue on the sieve.
Further, in the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, a mortar type grinding machine is adopted for pre-grinding. Further, the mortar grinder model is FRITSCH Pulverisette 2.
Further, in the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the pre-grinding is performed for 20-100g of sample amount each time, and the pre-grinding time is 20-30 min.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the hydraulic pressure of the rolling mill is 120-220 bar, and the roller spacing is 1.1-2 mm.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the surfactant is at least one of sodium silicate, sodium hexametaphosphate, monoisopropanolamine or polycarboxylate.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the weight ratio of the sulfuric acid process titanium dioxide crude product to water is 1-2: 2-3.
Preferably, the water is distilled water.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the pH value is adjusted by using sulfuric acid, sodium hydroxide or potassium hydroxide.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the high-speed stirring speed is 1500-3000 rpm.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the particle size of the zirconia beads is 0.4-0.8 mm.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the high-speed grinding speed is 1500-3000 rpm, and the time is 20-60 min.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the filtering is carried out by adopting a double-layer sieve, the particle size of an upper-layer sieve is 30-100 meshes, and the particle size of a lower-layer sieve is 325-10000 meshes.
Wherein, in the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, when the screen residue is less than or equal to 0.02 percent, the grinding performance of the titanium dioxide crude product is good; when the screen residue is 0.02-0.1%, the grinding performance of the primary titanium dioxide product is general; when the screen residue is more than or equal to 0.1 percent, the grinding performance of the primary titanium white product is poor.
The invention has the beneficial effects that:
the invention innovatively provides a scientific method for evaluating the grinding performance of a sulfuric acid process titanium dioxide crude product, which is characterized in that a surfactant and a grinding medium are added into the sulfuric acid process titanium dioxide crude product for grinding, a vertical sand mill is simulated in the grinding process, and the grinding performance of the titanium dioxide crude product is scientifically evaluated by calculating the residue after grinding. The evaluation method is simple to operate and easy to implement, can quickly evaluate the grinding performance of the primary titanium white product by the sulfuric acid process, can provide effective technical support for the optimization of the medium powder process and equipment combination, has important significance for improving the quality of the titanium white, and has very important popularization and application values.
Detailed Description
The invention provides a method for evaluating the grinding performance of a sulfuric acid process titanium dioxide crude product, which comprises the following steps of:
weighing a sulfuric acid method titanium dioxide primary product Mg, and pre-grinding or rolling and grinding until oversize materials of 200 meshes account for 40-60%; weighing a surfactant which accounts for 0.2-0.3% of the weight of the sulfuric acid process titanium dioxide primary product, adding the surfactant into water to dissolve the surfactant, adding the sulfuric acid process titanium dioxide primary product, and uniformly stirring; adjusting the pH value of the solution to 9-11, and then stirring at a high speed; adding zirconia beads, and grinding at high speed; grinding and filtering, drying the titanium dioxide on the sieve, weighing the dried titanium dioxide into M, calculating the residue on the sieve, wherein the residue w is M/M100%, and judging the grinding performance of the sulfuric acid method titanium dioxide primary product according to the residue on the sieve.
Further, in the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, a mortar type grinding machine is adopted for pre-grinding. Further, the mortar grinder model is FRITSCH Pulverisette 2. In the invention, the pre-grinding is carried out by a mortar grinder, but the pre-grinding method is not limited to mortar grinding, and other grinding processes are within the protection scope of the invention as long as the coarse titanium white product can be ground to the particle size of 200 meshes of oversize products accounting for 40-60%.
Further, in the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the pre-grinding is carried out with 20-100g of sample amount each time, and the pre-grinding time is 20-30 min.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the hydraulic pressure of the roller mill is 120-220 bar, and the roller spacing is 1.1-2 mm.
In the invention, in order to reduce the pulping viscosity of the titanium white primary product, accelerate the dispersion of titanium white primary product particles and avoid the reaggregation of the dispersed titanium white particles, a surfactant is specially added. The preferred surfactant of the present invention is at least one of sodium silicate, sodium hexametaphosphate, monoisopropanolamine, or polycarboxylate.
In the method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product, the weight ratio of the sulfuric acid process titanium dioxide crude product to water is 1-2: 2-3.
Preferably, the water is distilled water.
According to the invention, the pH value is adjusted according to the isoelectric point of the titanium dioxide primary product by the sulfuric acid method, and the lower the pH value of the titanium dioxide primary product slurry is away from the isoelectric point, the lower the viscosity of the slurry is, and the better the dispersion effect is. Therefore, the pH value is specially controlled to be 9-11. In order to balance the cost and the influence on subsequent products, the pH value is adjusted by adopting sulfuric acid, sodium hydroxide or potassium hydroxide, the sulfuric acid is easy to flow away along with washing water, the cost of the sodium hydroxide is relatively low, and the sulfuric acid is easy to remove along with the subsequent washing procedure, so that the quality of the product is not influenced.
The method adds zirconium beads into the beaker, mainly simulates a vertical sand mill, and has the grinding effect basically the same as that of a production field through effective optimization of process parameters. The grinding parameters of the invention are as follows: the grinding method is characterized in that the zirconium beads are zirconium oxide beads, the diameter of the zirconium oxide beads is 0.4-0.8 mm, the grinding time is 20-60 min, the high-speed stirring rotating speed is 1500-3000 rpm, the specification of the beaker is 1L, the size of the beaker is matched with the diameter of a high-speed stirring blade, the distance between the front end of the stirring blade and the wall of the container is about 1-2 cm, and the good grinding effect and the safe distance can be guaranteed.
In the method for evaluating the grinding performance of the titanium dioxide crude product, the filtering is carried out by adopting a double-layer sieve, the particle size of an upper-layer sieve is 30-100 meshes, and the particle size of a lower-layer sieve is 325-10000 meshes.
The particle size of the two layers of screens is determined according to the particle size of zirconia beads and the grinding performance of titanium dioxide, and the particle size of the upper layer of screen is required to be that the titanium dioxide can completely pass through and the zirconia beads can completely screen out. The requirement of the lower layer screen is that the oversize product of the titanium dioxide is less than or equal to 5 percent.
Wherein, in the method for evaluating the grinding performance of the titanium white crude product, when the screen residue is less than or equal to 0.02 percent, the grinding performance of the titanium white crude product is good; when the screen residue is 0.02-0.1%, the grinding performance of the primary titanium dioxide product is general; when the screen residue is more than or equal to 0.1 percent, the grinding performance of the primary titanium white product is poor. The grinding performance of the titanium white crude product is evaluated according to the size of the screen residue, the evaluation standard can be adjusted according to the actual situation, and the grinding performance of the titanium white crude product is good when the screen residue is less than or equal to 0.02 percent; when the screen residue is 0.02-0.1%, the grinding performance of the primary titanium dioxide product is general; when the screen residue is more than or equal to 0.1 percent, the grinding performance of the primary titanium white product is poor. The person skilled in the art can determine an evaluation system by himself to evaluate the grinding performance of the crude titanium dioxide. The evaluation system is different, does not influence the evaluation method of the invention, and still is in the protection scope of the invention.
According to the invention, through a specific grinding process combination (pre-grinding and simulated vertical sand grinding process), relevant grinding parameters are strictly controlled through tests, the strength basically consistent with that of on-site medium powder grinding is achieved, and an important technical means is provided for evaluating the grinding difficulty of the sulfuric acid method titanium dioxide primary product.
In the invention, the intensity of the pre-grinding process has a great influence on the grinding performance of the crude titanium white product, and the intensity is very important for evaluating the grinding performance of the crude titanium white product. If the pre-grinding process is too strong, the material is sufficiently ground, and the material can be ground into a very fine and uniform particle size regardless of the grinding performance of the material. If the pre-grinding is too weak, the subsequent simulated vertical sanding strength is not enough to grind the material to the effect consistent with the granularity of powder grinding in an industrial field, the grinding performance of the primary product cannot be effectively evaluated, and technical support cannot be provided for powder grinding in the field.
In another aspect, the present invention also simulates vertical sanding. By controlling parameters such as stirring speed and grinding time of high-speed stirring, the pre-ground titanium dioxide crude product is ground into a product with consistent screen residue after on-site medium powder grinding, and the grinding performance of the titanium dioxide crude product can be accurately and effectively evaluated.
The following examples are intended to illustrate specific embodiments of the present invention without limiting the scope of the invention to the examples.
EXAMPLE 1 evaluation of the grinding Performance of crude titanium dioxide by the method of the present invention
200g of primary products No. 1 of a kiln of a certain factory are taken, 100g of the primary products are placed in a mortar grinder (FRITSCH Pulverisette 2) for grinding for 30min each time, for standby, 350ml of desalted water is measured and added into a 1L grinding cylinder, 6ml of 100g/L sodium silicate dispersant is added, 10% sodium hydroxide solution is utilized to adjust the pH value to 11, the primary products are placed under high-speed stirring, the rotating speed is set at 2000rpm, pre-crushed titanium dioxide primary products are added, then 400g of zirconia beads (0.6 mm-0.8 mm) are weighed and added into a beaker for grinding for 30min, after grinding is finished, sieving is carried out, a 50-mesh sieve is arranged above the primary products, two sieves are overlapped, the zirconia beads are intercepted on the 50-mesh sieve, the coarse materials are intercepted on the 325-mesh sieve, coarse particles on the 325-mesh sieve are washed clean, dried and weighed to. And (3) calculating the screen residue, wherein the calculation formula of the screen residue is as follows: w is m 100%/200.
EXAMPLE 2 evaluation of the grinding Performance of crude titanium dioxide by the method of the present invention
200g of primary products No. 2 of a kiln of a certain factory is taken, 100g of the primary products are placed in a mortar grinder (FRITSCH Pulverisette 2) for grinding for 30min each time, for standby, 350ml of desalted water is measured and added into a 1L grinding cylinder, 6ml of 100g/L sodium silicate dispersant is added, 10% sodium hydroxide solution is utilized to adjust the pH value to 11, the primary products are placed under high-speed stirring, the rotating speed is set at 2000rpm, pre-crushed titanium dioxide primary products are added, then 400g of zirconia beads (0.6 mm-0.8 mm) are weighed and added into a beaker for grinding for 30min, after grinding is finished, sieving is carried out, a 50-mesh sieve is arranged above the primary products, two sieves are overlapped, the zirconia beads are intercepted on the 50-mesh sieve, the coarse materials are intercepted on the 325-mesh sieve, coarse particles on the 325-mesh sieve are washed clean, dried and weighed to. And (3) calculating the screen residue, wherein the calculation formula of the screen residue is as follows: w is m 100%/200.
EXAMPLE 3 evaluation of the grinding Performance of crude titanium dioxide by the method of the present invention
200g of primary product No. 3 of a kiln of a certain plant is taken, 100g of the primary product is placed in a mortar grinder (FRITSCH Pulverisette 2) for grinding for 30min each time, for standby, 350ml of desalted water is measured and added into a 1L grinding cylinder, 6ml of sodium silicate dispersant of 100g/L is added, 10% sodium hydroxide solution is utilized to adjust the pH value to 11, the primary product is placed under high-speed stirring, the rotating speed is set at 2000rpm, the pre-crushed primary product of the titanium dioxide kiln is added, then 400g of zirconia beads (0.6 mm-0.8 mm) are weighed and added into a beaker for grinding for 30min, after grinding is finished, sieving is carried out, a 50-mesh sieve is arranged above the primary product, a 325-mesh sieve is arranged below the primary product, two sieves are superposed, the zirconia beads are retained on the 50-mesh sieve, the coarse materials are retained on the 325-mesh sieve. And (3) calculating the screen residue, wherein the calculation formula of the screen residue is as follows: w is m 100%/200.
The calculated screen residue for examples 1-3 are shown in Table 1.
Table 1 results of examples
From the example results it can be seen that: the method can be used for stably evaluating the grinding performance of the titanium white crude product, and can also compare the grinding performance of the titanium white crude products from different sources, for example, the grinding performance of the titanium white crude product in example 1 is better than that in examples 2 and 3.
Claims (10)
1. The method for evaluating the grinding performance of the sulfuric acid method titanium dioxide crude product is characterized by comprising the following steps of:
weighing a sulfuric acid method titanium dioxide primary product Mg, and pre-grinding or rolling and grinding until oversize materials of 200 meshes account for 40-60%; weighing a surfactant which accounts for 0.2-0.3% of the weight of the sulfuric acid process titanium dioxide primary product, adding the surfactant into water to dissolve the surfactant, adding the sulfuric acid process titanium dioxide primary product, and uniformly stirring; adjusting the pH value of the solution to 9-11, and then stirring at a high speed; adding zirconia beads, and grinding at high speed; grinding and filtering, drying the titanium dioxide on the sieve, weighing the dried titanium dioxide into mg, calculating the residue on the sieve, wherein the residue w is M/M100%, and judging the grinding performance of the sulfuric acid method titanium dioxide primary product according to the residue on the sieve.
2. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the pre-grinding adopts a mortar type grinder.
3. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the pre-grinding time is 20-30 min, and the sampling amount of each pre-grinding time is 20-100 g.
4. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the hydraulic pressure of the rolling mill is 120-220 bar, and the roller spacing is 1.1-2 mm.
5. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the surfactant is at least one of sodium silicate, sodium hexametaphosphate, monoisopropanolamine or polycarboxylate.
6. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the weight ratio of the sulfuric acid process titanium dioxide crude product to water is 1-2: 2-3.
7. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the high-speed stirring speed is 1500-3000 rpm.
8. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the high-speed grinding speed is 1500-3000 rpm, and the time is 20-60 min.
9. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: the filtering is carried out by adopting a double-layer sieve, the particle size of an upper-layer sieve mesh is 30-100 meshes, and the particle size of a lower-layer sieve mesh is 325-10000 meshes.
10. The method for evaluating the grinding performance of the sulfuric acid process titanium dioxide crude product according to claim 1, characterized in that: when the screen residue is less than or equal to 0.02 percent, the primary titanium white product has good grinding performance; when the screen residue is 0.02-0.1%, the grinding performance of the primary titanium dioxide product is general; when the screen residue is more than or equal to 0.1 percent, the grinding performance of the primary titanium white product is poor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175479A (en) * | 2020-03-31 | 2020-05-19 | 龙佰四川钛业有限公司 | Method for testing grinding performance of titanium white kiln product |
| CN111579537A (en) * | 2020-04-21 | 2020-08-25 | 廊坊立邦涂料有限公司 | Method for testing grinding end point of abrasive slurry |
| CN112885180A (en) * | 2021-02-02 | 2021-06-01 | 内蒙古国城资源综合利用有限公司 | Titanium white device typical control loop simulation training system and method |
| CN113125297A (en) * | 2020-01-10 | 2021-07-16 | 立邦涂料（中国）有限公司 | Method for detecting dispersibility of titanium dioxide in water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900941A (en) * | 2014-03-18 | 2014-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Characterization method of sintering degree of rutile titanium dioxide particles |
| CN105921212A (en) * | 2016-06-23 | 2016-09-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing viscosity of titanium dioxide slurry |
| CN107490659A (en) * | 2017-09-25 | 2017-12-19 | 攀钢集团研究院有限公司 | A kind of characterizing method of hydrated titanium dioxide Calcine Strength |
| CN109233344A (en) * | 2018-11-26 | 2019-01-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The breaking method of sulfate process titanium dioxide first product |
-
2019
- 2019-10-25 CN CN201911022559.3A patent/CN110631949A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900941A (en) * | 2014-03-18 | 2014-07-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Characterization method of sintering degree of rutile titanium dioxide particles |
| CN105921212A (en) * | 2016-06-23 | 2016-09-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing viscosity of titanium dioxide slurry |
| CN107490659A (en) * | 2017-09-25 | 2017-12-19 | 攀钢集团研究院有限公司 | A kind of characterizing method of hydrated titanium dioxide Calcine Strength |
| CN109233344A (en) * | 2018-11-26 | 2019-01-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The breaking method of sulfate process titanium dioxide first product |
Non-Patent Citations (3)
| Title |
|---|
| 王海波等: "金红石型钛白砂磨工艺研究", 《钢铁钒钛》 * |
| 莫畏等: "《钛冶金》", 30 June 1998 * |
| 裴润等: "《硫酸法钛白生产》", 28 February 1982 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125297A (en) * | 2020-01-10 | 2021-07-16 | 立邦涂料（中国）有限公司 | Method for detecting dispersibility of titanium dioxide in water |
| CN111175479A (en) * | 2020-03-31 | 2020-05-19 | 龙佰四川钛业有限公司 | Method for testing grinding performance of titanium white kiln product |
| CN111579537A (en) * | 2020-04-21 | 2020-08-25 | 廊坊立邦涂料有限公司 | Method for testing grinding end point of abrasive slurry |
| CN111579537B (en) * | 2020-04-21 | 2023-03-14 | 廊坊立邦涂料有限公司 | Method for testing grinding end point of abrasive slurry |
| CN112885180A (en) * | 2021-02-02 | 2021-06-01 | 内蒙古国城资源综合利用有限公司 | Titanium white device typical control loop simulation training system and method |
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