CN113522224A - Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate - Google Patents
Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate Download PDFInfo
- Publication number
- CN113522224A CN113522224A CN202110752592.2A CN202110752592A CN113522224A CN 113522224 A CN113522224 A CN 113522224A CN 202110752592 A CN202110752592 A CN 202110752592A CN 113522224 A CN113522224 A CN 113522224A
- Authority
- CN
- China
- Prior art keywords
- calcium titanate
- low
- heavy metal
- grade rutile
- rutile concentrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3007—Moulding, shaping or extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3021—Milling, crushing or grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3071—Washing or leaching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a method for preparing a calcium titanate adsorbing material by using low-grade rutile concentrate. The method is used for preparing the calcium titanate adsorbing material with stable crystal structure and excellent stability. The low-grade rutile has wide sources and low price, can comprehensively utilize the titanium dioxide resource, changes waste into valuable, and solves the problem of ecological environment pollution. Meanwhile, calcium chloride and potassium silicate are used as molten salt reaction media, so that the temperature of a reaction system can be effectively reduced, and the cost is saved. The produced high value-added product can effectively remove heavy metal ions in the sewage, has wide application prospect in the field of sewage treatment, and has good economic benefit, environmental benefit and social benefit.
Description
Technical Field
The invention belongs to the technical field of powder material preparation, and particularly relates to a method for preparing a calcium titanate adsorption material by using low-grade rutile concentrate.
Background
Rutile is one of the main minerals for refining metallic titanium and manufacturing titanium dioxide, rutile ore in China has the characteristics of low grade, fine granularity, complex mineral composition and distribution relation, poor selectivity and the like, so that the grade of rutile concentrate is low, the utilization difficulty is increased, a large amount of low-grade rutile concentrate products are stacked, a large amount of land is occupied, and the ecological environment is polluted. Therefore, the practical significance of the realization of the maximization of the comprehensive utilization of resources is important on how to fully utilize the rutile concentrate resources to prepare high-added-value products. The patent "a method for preparing aluminum titanate refractory material with industrial aluminum slag and titanium slag (CN 202010776149)" mixes industrial aluminum slag and titanium slag uniformly and then calcines them to prepare the aluminum titanate refractory material, thus changing the resources into valuable and solving the problem of ecological environment pollution. The patent ' a comprehensive utilization method of titanium slag ' (CN 201910140636) ' prepares nano titanium dioxide from molten slag of a titanium-containing electric furnace through alkali fusion, water leaching and calcination, and achieves the purposes of effectively utilizing titanium slag resources and relieving the environmental pollution and harm of the titanium slag.
The low-grade rutile concentrate is produced by the low grade, fine granularity, complex mineral composition and distribution relation of original rutile ore and the limitation of separation technology, and the low-grade rutile concentrate is accumulated because high-end titanium materials cannot be prepared by further utilizing the low-grade rutile concentrate, thereby occupying a large amount of land resources. This not only affects the ecological environment, but also causes waste of resources, and at the same time makes the use of titanium dioxide, which is the main chemical component, unreasonable. With the increase of the urbanization process and the rapid development of the industrial technology, a great amount of solid wastes including low-grade rutile concentrates are accumulated, so that a series of ecological environment problems such as heavy metal pollution are brought. The problem of heavy metal pollution can be solved by adopting a porous adsorbent and an adsorption method so as to achieve the aim of purifying water quality. The adsorbent has the requirements of strong adsorption capacity, low adsorption equilibrium concentration, stable chemical property, good selectivity, easy regeneration and reuse, low cost, wide source and the like.
Disclosure of Invention
The invention aims to provide a method for preparing a calcium titanate adsorbing material by using low-grade rutile concentrate.
A method for preparing a calcium titanate adsorption material by using low-grade rutile concentrate comprises the following steps:
(1) mixing 40-50% of low-grade rutile concentrate, 30-40% of calcium oxide and 10-20% of molten salt agent in percentage by mass, and grinding the mixture in a ball milling tank for 0.5-2h to obtain a mixed material;
(2) pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm by a tablet press under 10-30 Mpa;
(3) placing the material slices into a muffle furnace at the temperature of 700-;
(4) washing the roasted material with deionized water until no Cl is formed-And drying to obtain the calcium titanate powder material.
The molten salt agent is calcium chloride and potassium silicate according to the weight ratio of 1: 1, mixing the mixture.
The granularity of the low-grade rutile concentrate is 10-70 mu m.
The low-grade rutile concentrate comprises the following chemical components in percentage by mass: TiO 22The content is 75-85%.
The heavy metal ions are one or more of copper ions, lead ions and cadmium ions.
The adsorption temperature of the calcium titanate adsorption material for adsorbing heavy metal ions in the wastewater is 25-45 ℃; the concentration ranges of the copper ions and the cadmium ions are both 300-400mg/L, and the concentration range of the lead ions is 600-800 mg/L.
The invention has the beneficial effects that: the invention adopts low-grade rutile concentrate as the raw material, reduces the loss of titanium dioxide resources, regenerates the titanium dioxide resources into calcium titanate powder materials with good adsorption performance, realizes the maximization of the comprehensive utilization of the titanium resources, effectively removes heavy metal ions in sewage, solves the problem of ecological environment, achieves the purposes of treating wastes with processes of wastes against one another and establishes a win-win mode system integrating economic benefits and environmental protection benefits. Secondly, the calcium titanate powder material prepared by the technology has the advantages of wide raw material source, low price, simple technical route and strong production process operability, and the mixture of calcium chloride and potassium silicate is added in the preparation process and is used as a molten salt reaction medium to accelerate the contact and flow of materials in the reaction process, improve the reaction activity, greatly reduce the temperature of a reaction system, reduce the reaction energy consumption and further reduce the production cost. Finally, the calcium titanate powder material prepared by the invention has excellent adsorption performance, can effectively remove heavy metal ions in sewage, and has wide application prospect in the aspect of sewage treatment.
Drawings
FIG. 1 is a process flow diagram for preparing calcium titanate powder according to the present invention.
FIG. 2 is an XRD pattern of a sample of calcium titanate powder prepared in example 1 of the present invention.
FIG. 3 is an XRD pattern of a sample of calcium titanate powder prepared in example 2 of the present invention.
FIG. 4 is an electron microscope scan of a sample of calcium titanate powder prepared in example 3 of the present invention.
FIG. 5 is an electron microscope scan of a sample of calcium titanate powder prepared in example 1 of the present invention.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The following examples use low grade rutile concentrate as the raw material, and the chemical composition of the raw material is shown in table 1 below:
TABLE 1 chemical composition of the raw materials
The process flow for preparing calcium titanate powder is shown in figure 1.
Example 1
4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide, 1g of analytically pure calcium chloride and 1g of analytically pure potassium silicate are mixed and put into a ball milling tank for grinding for 1 hour; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; placing the material pieces into a muffle furnace at 750 ℃ for roasting for 2h, naturally cooling along with the furnace, and repeatedly washing the roasted material with deionized water until no Cl exists-And drying to obtain the calcium titanate powder material.
Adding 1g of calcium titanate powder material into 250mL of heavy metal ion solution containing copper (300mg/L), lead (600mg/L) and cadmium (300mg/L), carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the calcium titanate for adsorbing the heavy metal ions.
The XRD pattern and the electron scanning pattern of the calcium titanate powder prepared in the example are shown in FIG. 2 and FIG. 5 respectively; the adsorption capacity (adsorption time: 4h) for heavy metal ions is shown in Table 2.
TABLE 2 adsorption capacity of calcium titanate for heavy metal ions (adsorption time 4h)
Example 2
4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide, 1g of analytically pure calcium chloride and 1g of analytically pure potassium silicate are mixed and put into a ball milling tank for grinding for 1 hour; passing the mixture through a tablet press under 30MPaPressing into material pieces with diameter of 20mm and height of 10 mm; placing the material slices into a muffle furnace at 800 ℃ for roasting for 3h, naturally cooling along with the furnace, and repeatedly washing the roasted material with deionized water until no Cl exists-And drying to obtain the calcium titanate powder material.
Adding 1g of calcium titanate powder material into 250mL of solution containing copper (400mg/L), lead (800mg/L) and cadmium (400mg/L) heavy metal ions, carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the calcium titanate for adsorbing the heavy metal ions.
The XRD pattern of the calcium titanate powder prepared in this example is shown in FIG. 3, and the adsorption capacity (4 h adsorption time) of the powder to heavy metal ions is shown in Table 3.
TABLE 3 adsorption capacity of calcium titanate for heavy metal ions (adsorption time 4h)
Example 3
Mixing 5g of low-grade rutile concentrate with the granularity of 70 mu m, 3g of analytically pure calcium oxide and 2.4g of analytically pure calcium chloride, and putting the mixture into a ball milling tank for grinding for 2 hours; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; and (3) putting the material sheet into a muffle furnace at 900 ℃ for roasting for 3h, naturally cooling along with the furnace, repeatedly washing the roasted material with deionized water until no Cl & lt- & gt exists, and drying to obtain the calcium titanate powder material.
Adding 1g of calcium titanate powder material into 250mL of solution containing copper (350mg/L), lead (700mg/L) and cadmium (350mg/L) heavy metal ions, carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the calcium titanate for adsorbing the heavy metal ions.
An electron microscope scanning image of the calcium titanate powder prepared in this example is shown in FIG. 4, and the adsorption capacity (adsorption time: 4h) for heavy metal ions is shown in Table 4.
TABLE 4 adsorption capacity of calcium titanate for heavy metal ions (adsorption time 4h)
Comparative example 1
Mixing 4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide and 2g of analytically pure calcium chloride, and putting the mixture into a ball milling tank for grinding for 1 hour; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; placing the material pieces into a muffle furnace at 750 ℃ for roasting for 2h, naturally cooling along with the furnace, and repeatedly washing the roasted material with deionized water until no Cl exists-And drying to obtain the calcium titanate powder material, wherein the calcium titanate powder material is reddened by visual inspection, incomplete in reaction and poor in quality.
Adding 1g of calcium titanate powder material into 250mL of heavy metal ion solution containing copper (300mg/L), lead (600mg/L) and cadmium (300mg/L), carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the calcium titanate for adsorbing the heavy metal ions.
The adsorption capacity (adsorption time: 4h) of the calcium titanate powder prepared in this example for heavy metal ions is shown in Table 5.
TABLE 5 adsorption capacity of calcium titanate for heavy metal ions (adsorption time 4h)
Comparative example 2
4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide and 2g of analytically pure potassium silicate are mixed and put into a ball milling tank for grinding for 1 hour; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; placing the material pieces into a muffle furnace at 750 ℃ for roasting for 2h, naturally cooling along with the furnace, and repeatedly using deionized water to roast the roasted materialWashing to Cl free-And drying to obtain the calcium titanate powder material, wherein the calcium titanate powder material is reddened by visual inspection, incomplete in reaction and poor in quality.
Adding 1g of calcium titanate powder material into 250mL of heavy metal ion solution containing copper (300mg/L), lead (600mg/L) and cadmium (300mg/L), carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the calcium titanate for adsorbing the heavy metal ions.
The adsorption capacity (adsorption time: 4h) of the calcium titanate powder prepared in this example for heavy metal ions is shown in Table 6.
TABLE 6 adsorption capacity of calcium titanate for heavy metal ions (adsorption time 4h)
Comparative example 3
4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide, 1g of analytically pure calcium chloride and 1g of analytically pure potassium silicate are mixed and put into a ball milling tank for grinding for 1 hour; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; placing the material pieces into a muffle furnace at 700 ℃ for roasting for 2h, naturally cooling along with the furnace, and repeatedly washing the roasted material with deionized water until no Cl exists-Drying, visual inspection does not obtain calcium titanate powder, reaction is incomplete, and the measured adsorption capacity of the final product to heavy metal ions is almost zero.
Example 4
Mixing 4g of low-grade rutile concentrate with the granularity of 70 mu m, 2.8g of analytically pure calcium oxide, 1g of abalone shell, 1g of analytically pure calcium chloride and 1g of analytically pure potassium silicate, and putting the mixture into a ball milling tank for grinding for 1 hour; pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm under the pressure of 30Mpa by a tablet press; placing the material slices into a muffle furnace at 800 ℃ for roasting for 3h, naturally cooling along with the furnace, and repeatedly washing the roasted material with deionized water until no Cl exists-Existing, drying to obtain adsorptionAnd (3) powder materials.
Adding 1g of the adsorption powder material into 250mL of a solution containing copper (400mg/L), lead (800mg/L) and cadmium (400mg/L) heavy metal ions, carrying out magnetic stirring, sampling at intervals, filtering, taking the solution, and measuring the content of the heavy metal ions in the solution by using an atomic absorption spectrophotometer to obtain the adsorption capacity of the adsorption powder for adsorbing the heavy metal ions.
The adsorption capacity (adsorption time: 4h) of the adsorption powder for heavy metal ions prepared in this example is shown in Table 7.
TABLE 7 adsorption capacity of the adsorption powder for heavy metal ions (adsorption time 4h)
The adsorption powder not only generates calcium titanate powder, but also finally generates a part of calcium titanate and carbon hydroxyapatite mixed crystal powder structure and other unknown structures through the complex components of the abalone shell, thereby promoting the absorption of heavy metal ions. The inventor also adopts other analogues such as egg shells, spiral shells, clam shells and the like to replace abalone shells to carry out the preparation of the adsorption powder and adsorption experiments, and the adsorption capacity of the adsorption powder to heavy metal ions cannot be improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A method for preparing a calcium titanate adsorption material by using low-grade rutile concentrate is characterized by comprising the following steps:
(1) mixing 40-50% of low-grade rutile concentrate, 30-40% of calcium oxide and 10-20% of molten salt agent in percentage by mass, and grinding the mixture in a ball milling tank for 0.5-2h to obtain a mixed material;
(2) pressing the mixed material into material tablets with the diameter of 20mm and the height of 10mm by a tablet press under 10-30 Mpa;
(3) placing the material slices into a muffle furnace at the temperature of 700-;
(4) washing the roasted material with deionized water until no Cl is formed-And drying to obtain the calcium titanate powder material.
2. The method for preparing a calcium titanate adsorption material from low-grade rutile concentrate according to claim 1, wherein the molten salt agent is calcium chloride and potassium silicate according to a ratio of 1: 1, mixing the mixture.
3. The method of using low-grade rutile concentrate to produce a calcium titanate adsorbent material of claim 1, wherein the low-grade rutile concentrate has a particle size of 10-70 μm.
4. The method for preparing the calcium titanate adsorption material by using the low-grade rutile concentrate according to the claim 1, wherein the chemical components of the low-grade rutile concentrate comprise, by mass percent: TiO 22The content is 75-85%.
5. The application of the calcium titanate adsorbing material prepared in the claim 1 in adsorbing heavy metal ions in wastewater, wherein the heavy metal ions are one or more of copper ions, lead ions and cadmium ions.
6. The application of the prepared calcium titanate adsorbing material in adsorbing heavy metal ions in wastewater according to claim 5, wherein the adsorption temperature of the calcium titanate adsorbing material for adsorbing the heavy metal ions in the wastewater is 25-45 ℃; the concentration ranges of the copper ions and the cadmium ions are both 300-400mg/L, and the concentration range of the lead ions is 600-800 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752592.2A CN113522224B (en) | 2021-07-02 | 2021-07-02 | Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752592.2A CN113522224B (en) | 2021-07-02 | 2021-07-02 | Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113522224A true CN113522224A (en) | 2021-10-22 |
| CN113522224B CN113522224B (en) | 2022-06-07 |
Family
ID=78126675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110752592.2A Active CN113522224B (en) | 2021-07-02 | 2021-07-02 | Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113522224B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787431A (en) * | 2010-02-02 | 2010-07-28 | 昆明理工大学 | Method for preparing acid-soluble titanium slag by high titanium slag through microwave irradiation |
| CN101787432A (en) * | 2010-02-02 | 2010-07-28 | 昆明理工大学 | Method for preparing acid-soluble titanium slag from high-titanium slag |
| CN102430382A (en) * | 2011-09-23 | 2012-05-02 | 沈阳理工大学 | Method for preparing porous calcium titanate heavy metal adsorbent |
| CN107469760A (en) * | 2017-09-28 | 2017-12-15 | 江苏大学 | A kind of nanometer CaTiO3Powder adsorbent and its preparation method and application |
| CN110075784A (en) * | 2019-04-11 | 2019-08-02 | 江苏大学 | A kind of titanium-containing oxide heavy metal absorbent and preparation method thereof |
-
2021
- 2021-07-02 CN CN202110752592.2A patent/CN113522224B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787431A (en) * | 2010-02-02 | 2010-07-28 | 昆明理工大学 | Method for preparing acid-soluble titanium slag by high titanium slag through microwave irradiation |
| CN101787432A (en) * | 2010-02-02 | 2010-07-28 | 昆明理工大学 | Method for preparing acid-soluble titanium slag from high-titanium slag |
| CN102430382A (en) * | 2011-09-23 | 2012-05-02 | 沈阳理工大学 | Method for preparing porous calcium titanate heavy metal adsorbent |
| CN107469760A (en) * | 2017-09-28 | 2017-12-15 | 江苏大学 | A kind of nanometer CaTiO3Powder adsorbent and its preparation method and application |
| CN110075784A (en) * | 2019-04-11 | 2019-08-02 | 江苏大学 | A kind of titanium-containing oxide heavy metal absorbent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘志波: ""具有不同形貌的A（Ca,Ba,Sr）TiO3颗粒制备及光催化性能的研究"", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅰ辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113522224B (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102627305B (en) | Method using alkaline process to extract alumina in coal ash | |
| CN102020299B (en) | Method for producing industrial activated aluminum oxide from pulverized fuel ash | |
| Zhou et al. | Synthesis of high-quality NaP1 zeolite from municipal solid waste incineration fly ash by microwave-assisted hydrothermal method and its adsorption capacity | |
| CN109985655B (en) | Preparation method and application of red mud-based composite photocatalyst | |
| CN110698174A (en) | Lightweight sludge ceramsite, and preparation method and application thereof | |
| CN111943336A (en) | Method for preparing polysilicate aluminum ferric flocculant, polysilicate aluminum ferric flocculant and application thereof | |
| CN104083945A (en) | Zeolite ceramic prepared by utilizing coal gangue and construction waste and preparation technology thereof | |
| CN112007644B (en) | Salt template method-based two-dimensional Fe/Fe preparation method by recovering Fenton sludge3O4Method for preparing photocatalyst | |
| CN107970890B (en) | Hydroxyl iron modified activated carbon composite material and preparation method thereof | |
| CN111871361B (en) | Environment repairing material and preparation method and application thereof | |
| CN111825475A (en) | Modified red mud porous ceramic and preparation method and application thereof | |
| AU2022402780A1 (en) | Method for comprehensively recovering lithium, tantalum-niobium, silicon-aluminum micro-powder, iron ore concentrate and gypsum from lithium slag | |
| CN105107457B (en) | A kind of preparation method of inorganic powder material and application | |
| CN109957657A (en) | A method of from red mud simultaneously resource utilization iron, sodium, aluminium | |
| CN102580666B (en) | Modified pumice for purifying heavy metal sewage and preparation method and application of modified pumice | |
| CN114212799B (en) | Fly ash pretreatment method for molecular sieve preparation | |
| CN103818969A (en) | Iron oxide red and preparation method thereof | |
| CN215048708U (en) | System for fly ash resourceful production high-purity alumina | |
| CN108383540B (en) | Modified fly ash ceramic and preparation method and application thereof | |
| CN113104939B (en) | Method for preparing micro-electrolysis active coke filler by using metallurgical dust and mud | |
| CN113522224B (en) | Method for preparing calcium titanate adsorption material by using low-grade rutile concentrate | |
| CN110759696B (en) | Preparation method of porous light ceramsite by taking phosphorus solid waste as raw material | |
| US10151017B2 (en) | Method for extracting ultra high purity alumina from wasterwater | |
| CN109126411B (en) | Excess sludge loaded iron tailing modified adsorbent and preparation method thereof | |
| CN112174279B (en) | Polymeric aluminosilicate inorganic flocculant and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |