CN114853043B - Improve Al in polyaluminum chloride b Content method - Google Patents
Improve Al in polyaluminum chloride b Content method Download PDFInfo
- Publication number
- CN114853043B CN114853043B CN202210462088.3A CN202210462088A CN114853043B CN 114853043 B CN114853043 B CN 114853043B CN 202210462088 A CN202210462088 A CN 202210462088A CN 114853043 B CN114853043 B CN 114853043B
- Authority
- CN
- China
- Prior art keywords
- polyaluminum chloride
- content
- visible light
- chloride solution
- aluminum
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/56—Chlorides
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a method for improving Al in polyaluminum chloride b Adding commercial polyaluminum chloride powder or polyaluminum chloride solution into a reactor, and preparing polyaluminum chloride solution with certain concentration; adding a proper amount of easily soluble aluminum products such as aluminum powder or waste aluminum products and the like into a reactor; then, according to the mass ratio of the aluminum product to the visible light response photocatalyst of 40-50: 1 g-C is added 3 N 4 、Ag 3 PO 4 、Bi 2 WO 6 Modified TiO 2 The visible light response photocatalyst is arranged in the polyaluminum chloride solution; reacting for 3-5 h under the irradiation of visible light sources such as sunlight, fluorescent lamps, LED lamps and the like to obtain high Al b Content of polyaluminum chloride. The invention improves the Al content on the basis of the commercial polyaluminium chloride b The content of the wastewater further improves the water treatment efficiency and performance of the wastewater, and realizes good removal of pollutants in source water. The Al in the polyaluminum chloride is improved b The content method has good environmental protection benefit and economic benefit.
Description
Technical Field
The invention relates to the technical field of drinking water treatment, in particular to a method for improving Al in polyaluminum chloride b The content method.
Background
With the rapid development of modern industry, water pollution problems are also attracting great attention in society while the economy is growing. Coagulation is one of the most commonly used techniques in water treatment, and its principle is to purify water by flocculating settling of colloid or suspended particles in water by means of a coagulant. Polyaluminum chloride is an important aluminum-based high-molecular coagulant commonly used in water treatment. Research on polyaluminium chloride is of great importance in the water treatment industry. The traditional coagulant such as aluminum sulfate takes the form of monomer aluminum as the main component, while the coagulant represented by polyaluminum contains a large amount of initial polymers and high molecular polymers, and has the hydrolysis of monomer aluminum and the adsorption bridging capability of the high molecular flocculant, so that the polyaluminum has gradually developed into a main product of inorganic high molecular coagulant. Polyaluminium chloride is widely applied to the fields of domestic drinking water, industrial sewage and wastewater tail water treatment, sludge dewatering and the like. Polyaluminum chloride is an excellent inorganic high-molecular water purifying material with Al as a main component. Al (Al) b Is a key effective component of polyaluminium chloride coagulation, and has remarkable effect in the coagulation treatment process. The commercially available polyaluminum chloride prepared by the traditional method has low purity and Al b Low content and stable productPoor performance. At present, for high Al b The development of the content of polyaluminum chloride is yet to be further enhanced.
The invention discloses a method for co-producing low-sodium high-temperature alumina by polyaluminium chloride, which is disclosed in Chinese patent application No. CN20201023156. X, wherein an aluminum hydroxide solution and a hydrochloric acid solution are mixed and then subjected to dissolution reaction to obtain a polyaluminium chloride solution; mixing aluminum oxide with the polyaluminium chloride solution, and then carrying out dealkalization-polymerization reaction to obtain a mixed solution; filtering the mixed solution to obtain a filter cake and filtrate; roasting the filter cake to obtain low-sodium high-temperature alumina, and concentrating the filtrate to obtain polyaluminum chloride. The method has the advantages of low price of the raw materials, environment-friendly preparation process, and capability of obtaining the alumina with extremely low sodium content, and obtaining the high-purity polyaluminium chloride, but has complex operation and is unfavorable for production.
The invention discloses a preparation process of a polyaluminum chloride water purifying agent, and relates to the field of water purifying agent preparation, wherein the Chinese patent application number is CN202111266743. The preparation process of the polyaluminum chloride water purifying agent comprises the following steps: adding aluminum hydroxide powder into a sodium hydroxide solution, and heating to obtain a sodium aluminate solution; cooling the sodium aluminate solution, adding hydrochloric acid for neutralization, introducing carbon dioxide, and adding hydrochloric acid to react to obtain a mixed solution containing aluminum hydroxide and polyaluminium chloride; filtering the mixed solution, adding hydrochloric acid to adjust the basicity, heating and aging to obtain the polyaluminum chloride water purifying agent. The polyaluminum chloride prepared by the method has the advantages of low impurity content, high purity and the like, but the Al thereof b The purity was not improved.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a method for improving Al content in polyaluminum chloride b The content method.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
adding commercial products into a reactorPolyaluminium chloride powder or polyaluminium chloride solution, and preparing the polyaluminium chloride powder or polyaluminium chloride solution into polyaluminium chloride solution with the mass fraction of 12% -16% under the condition of rapid stirring; adding easily soluble aluminum products such as aluminum powder or waste aluminum products and the like into a reactor, and rapidly stirring and uniformly mixing, wherein the concentration of the aluminum products in the polyaluminium chloride solution is 5% -7%; then, according to the mass ratio of the aluminum product to the visible light response photocatalyst of 40-50: 1 g-C is added 3 N 4 、Ag 3 PO 4 、Bi 2 WO 6 Modified TiO 2 The visible light response photocatalyst is arranged in the polyaluminum chloride solution; reacting for 3-5 hours under the irradiation of visible light sources such as sunlight, fluorescent lamps and LED lamps, wherein the radiation intensity of the visible light sources is 100W/m 2 ~150W/m 2 Obtaining high Al b Content of polyaluminum chloride.
The method specifically comprises the following steps:
1) Adding polyaluminium chloride powder or polyaluminium chloride solution into a reactor, and preparing the polyaluminium chloride powder or polyaluminium chloride solution into the polyaluminium chloride solution with the mass fraction of 12% -16% under the condition of rapid stirring.
2) And adding easily soluble aluminum products such as aluminum powder or waste aluminum products and the like into the reactor, and rapidly stirring and uniformly mixing, wherein the concentration of the aluminum products in the polyaluminum chloride solution is 5% -7%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 40-50: 1 g-C is added 3 N 4 、Ag 3 PO 4 、Bi 2 WO 6 Modified TiO 2 And the visible light response photocatalyst is arranged in the polyaluminum chloride solution.
4) Reacting for 3-5 hours under the irradiation of visible light sources such as sunlight, fluorescent lamps and LED lamps, wherein the radiation intensity of the visible light sources is 100W/m 2 ~150W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Wherein: in the step (1), the concentration of the polyaluminum chloride is controlled to be 12% -16%. When the concentration of polyaluminum chloride is too low, the concentration of the finally obtained polyaluminum chloride is too low, which is uneconomical. When the polyaluminum chloride concentration is too high, the subsequent reaction is not favored.
Adding aluminum to the reactor as described in step (2)The powder or waste aluminum products and other easily soluble aluminum products, and the concentration of the aluminum products in the polyaluminum chloride solution is 5% -7%. The aluminum product is added to improve Al in the polyaluminum chloride b Content and aluminum concentration. When the concentration of the aluminum product in the polyaluminum chloride solution is less than 5%, the aluminum product is prepared by the method of b The content is not obviously improved; when the concentration of the aluminum product in the polyaluminum chloride solution is more than 7%, a large amount of aluminum product is unreacted, and excessive aluminum product causes the excessive temperature in the reaction process, thereby reducing Al b The content is as follows.
In the step (3), g-C is added 3 N 4 、Ag 3 PO 4 、Bi 2 WO 6 Modified TiO 2 The purpose of the visible light responsive photocatalyst is to promote the generation of hydrogen ions (H) while generating hydroxyl radicals during the photocatalytic reaction + ) The reaction process is as follows:
visible light response photocatalyst +hv- & gt h + + e - (1)
h + + H 2 O → ·OH + H + (2)
In addition, the mass ratio of the aluminum product to the visible light response photocatalyst is 40-50: 1. when the mass ratio is too low, too much visible-light-responsive photocatalyst does not significantly promote Al b The content of the catalyst and the reaction rate can be too high, the temperature is too high in the reaction process, and the Al is reduced b The content is as follows; when the mass ratio is too high, too little visible light response photocatalyst cannot effectively exert the function of producing hydrogen ions by photocatalysis, al b The content is not obviously improved.
The reaction is carried out for 3 to 5 hours under the irradiation of the sunlight, the fluorescent lamp, the LED lamp and other visible light sources in the step (4), wherein the radiation intensity of the visible light sources is 100W/m 2 ~150W/m 2 . The visible light source can reduce the photocatalytic energy consumption. When the illumination time is too short, the photocatalysis reaction does not completely occur; when the illumination time is too long, the energy consumption is larger, and Al b The content of (c) is not significantly increased and is therefore uneconomical. When the radiation intensity of the visible light source is too low, the photocatalysis efficiency is low, and the required reaction time is too long, evenUntil no reaction occurs; when the radiation intensity of the visible light source is too high, the alloy is prepared by b The content is not obviously improved, the energy consumption is higher, the reaction rate is too high, the temperature is too high in the reaction process, and the Al is reduced b The content is as follows.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention improves the Al in the polyaluminum chloride b The content method is simple, the energy consumption is small, and the obtained polyaluminium chloride has good stability, high purity and good economic and social benefits, and is easy to dissolve.
2. The method can improve the Al content of polyaluminium chloride b The content is good, the application range is wide, the cost is low, the method can meet the treatment requirements of various water bodies, has wide market prospect, and also has good social benefit and economic benefit.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples, wherein the raw materials used in the examples are commercially available products unless otherwise specified.
Example 1:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 12% under the condition of rapid stirring.
2) Aluminum powder is added into the reactor, and is rapidly stirred and uniformly mixed, and the concentration of the aluminum product in the polyaluminum chloride solution is 5%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 40:1 g-C is added 3 N 4 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 3h under the irradiation of sunlight, wherein the irradiation intensity of a visible light source is 100W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Example 2:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 14% under the condition of rapid stirring.
2) Adding waste aluminum products into the reactor, rapidly stirring and uniformly mixing, wherein the concentration of the aluminum products in the polyaluminum chloride solution is 6%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 45:1 adding Ag 3 PO 4 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 4h under the irradiation of a fluorescent lamp, wherein the irradiation intensity of a visible light source is 125W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Example 3:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 16% under the condition of rapid stirring.
2) Aluminum powder is added into the reactor, and is rapidly stirred and uniformly mixed, and the concentration of the aluminum product in the polyaluminum chloride solution is 7%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 50:1 Bi is added 2 WO 6 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 5h under the irradiation of an LED lamp, wherein the radiation intensity of a visible light source is 150W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Example 4:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 12% under the condition of rapid stirring.
2) Adding waste aluminum products into the reactor, rapidly stirring and uniformly mixing, wherein the concentration of the aluminum products in the polyaluminum chloride solution is 5%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 40:1 adding modified TiO 2 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 5h under the irradiation of sunlight, wherein the irradiation intensity of a visible light source is 150W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Example 5:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 14% under the condition of rapid stirring.
2) Aluminum powder is added into the reactor, and is rapidly stirred and uniformly mixed, and the concentration of the aluminum product in the polyaluminum chloride solution is 6%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 45:1 g-C is added 3 N 4 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 3h under the irradiation of a fluorescent lamp, wherein the irradiation intensity of a visible light source is 100W/m 2 Obtaining high Al b Content of polyaluminum chloride.
Example 6:
1) Commercial polyaluminum chloride powder or polyaluminum chloride solution is added into a reactor and is prepared into polyaluminum chloride solution with the mass fraction of 16% under the condition of rapid stirring.
2) Adding waste aluminum products into the reactor, rapidly stirring and uniformly mixing, wherein the concentration of the aluminum products in the polyaluminum chloride solution is 7%.
3) The mass ratio of the aluminum product to the visible light response photocatalyst is 50:1 Bi is added 2 WO 6 The visible light responsive photocatalyst is in a solution of polyaluminum chloride.
4) Reacting for 4 hours under the irradiation of an LED lamp, wherein the radiation intensity of a visible light source is 125W/m 2 Obtaining high Al b Content of polyaluminum chloride.
The polyaluminum chloride Al prepared in examples 1 to 6 was measured separately b The content and the removal rate of the colloid pollutants in the source water are shown in Table 1.
TABLE 1 Performance parameters of polyaluminum chloride
| Product name | Al b Content (%) | Colloidal pollutant removal rate (%) |
| Polyaluminum chloride obtained in example 1 | 85.1 | 93.6 |
| The polyaluminum chloride obtained in example 2 | 86.7 | 94.4 |
| Example 3 polyaluminum chloride | 87.3 | 95.7 |
| The polyaluminum chloride obtained in example 4 | 88.5 | 96.8 |
| The polyaluminum chloride obtained in example 5 | 87.5 | 95.4 |
| Example 6 polyaluminum chloride | 88.0 | 96.9 |
As can be seen from Table 1, the present invention relates to an improvement of Al in polyaluminum chloride b Content of Al in the product prepared by the method b High content and high performanceCan be excellent and stable, and has better treatment effect on colloid pollutants in source water. It shows that the method is a practical and effective method for improving Al in polyaluminum chloride b The content method.
Finally, it should be noted that the above-mentioned examples of the present invention are only illustrative of the present invention and are not limiting of the embodiments of the present invention. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. Not all embodiments are exhaustive. Obvious changes and modifications which are extended by the technical proposal of the invention are still within the protection scope of the invention.
Claims (4)
1. Improve Al in polyaluminum chloride b The content method is characterized in that: adding commercial polyaluminium chloride powder or polyaluminium chloride solution into a reactor, and preparing the polyaluminium chloride powder or polyaluminium chloride solution into polyaluminium chloride solution with the mass fraction of 12-16% under the condition of rapid stirring; adding a readily soluble aluminum product into the reactor, and rapidly stirring and uniformly mixing, wherein the concentration of the aluminum product in the polyaluminum chloride solution is 5% -7%; then according to the mass ratio of the aluminum product to the visible light response photocatalyst of 40-50: 1 adding a visible light response photocatalyst into a polyaluminum chloride solution, wherein the visible light response photocatalyst is g-C 3 N 4 、Ag 3 PO 4 、Bi 2 WO 6 Modified TiO 2 The method comprises the steps of carrying out a first treatment on the surface of the Reacting for 3-5 h under the irradiation of visible light source to obtain high Al b Content of polyaluminum chloride.
2. The method for increasing Al content in polyaluminum chloride according to claim 1 b The content method is characterized in that the aluminum product is aluminum powder or waste aluminum product.
3. The method for increasing Al content in polyaluminum chloride according to claim 1 b The content method is characterized in that the radiation intensity of the visible light source is 100W/m 2 ～150W/m 2 。
4. The method for increasing Al content in polyaluminum chloride according to claim 1 b The content method is characterized in that the visible light source is sunlight, a fluorescent lamp or an LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462088.3A CN114853043B (en) | 2022-04-29 | 2022-04-29 | Improve Al in polyaluminum chloride b Content method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462088.3A CN114853043B (en) | 2022-04-29 | 2022-04-29 | Improve Al in polyaluminum chloride b Content method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114853043A CN114853043A (en) | 2022-08-05 |
| CN114853043B true CN114853043B (en) | 2023-08-29 |
Family
ID=82634125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210462088.3A Active CN114853043B (en) | 2022-04-29 | 2022-04-29 | Improve Al in polyaluminum chloride b Content method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114853043B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113493218A (en) * | 2021-08-03 | 2021-10-12 | 重庆工商大学 | High-purity and high-AlbPreparation method of polyaluminium chloride |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8282982A (en) * | 1981-04-29 | 1982-11-04 | Comalco Aluminium Limited | Recovery of alumina from aluminous ores |
| CN1743268A (en) * | 2004-08-31 | 2006-03-08 | 中国石油化工股份有限公司 | Method for preparing colloidal sol containing chloride and aluminium |
| AU2001264889B2 (en) * | 1997-05-07 | 2006-06-29 | Schering Corporation | Human receptor proteins; related reagents and methods |
| CN102923746A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Method for preparing polyaluminium chloride (PAC) |
| CA2950004A1 (en) * | 2014-05-26 | 2015-12-03 | Procede Ethanol Vert Technologie | Process for pure aluminum production from aluminum-bearing materials |
| WO2016049777A1 (en) * | 2014-10-03 | 2016-04-07 | Orbite Technologies Inc. | Methods for purifying aluminum ions |
| CN107324363A (en) * | 2017-07-28 | 2017-11-07 | 中国科学院生态环境研究中心 | A kind of high Al13The simple method for preparing of content aluminium polychloride |
| CA3075205A1 (en) * | 2017-09-08 | 2019-03-14 | Mina Therapeutics Limited | Stabilized hnf4a sarna compositions and methods of use |
| CN109721092A (en) * | 2019-01-24 | 2019-05-07 | 鄂尔多斯市蓝天白云环保材料有限责任公司 | The preparation method and its gained aluminium polychloride and purposes of a kind of aluminium polychloride |
| CN109748304A (en) * | 2019-01-24 | 2019-05-14 | 鄂尔多斯市蓝天白云环保材料有限责任公司 | The method of comprehensive utilization and product of waste residue in a kind of aluminium polychloride preparation process |
| CN111606339A (en) * | 2020-05-22 | 2020-09-01 | 内蒙古蒙泰集团有限公司 | Method for preparing aluminum-silicon oxide by using fly ash |
| CN113493218A (en) * | 2021-08-03 | 2021-10-12 | 重庆工商大学 | High-purity and high-AlbPreparation method of polyaluminium chloride |
| CN114084895A (en) * | 2021-04-08 | 2022-02-25 | 内蒙古蒙泰集团有限公司 | Preparation method of polyaluminum chloride |
-
2022
- 2022-04-29 CN CN202210462088.3A patent/CN114853043B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8282982A (en) * | 1981-04-29 | 1982-11-04 | Comalco Aluminium Limited | Recovery of alumina from aluminous ores |
| AU2001264889B2 (en) * | 1997-05-07 | 2006-06-29 | Schering Corporation | Human receptor proteins; related reagents and methods |
| CN1743268A (en) * | 2004-08-31 | 2006-03-08 | 中国石油化工股份有限公司 | Method for preparing colloidal sol containing chloride and aluminium |
| CN102923746A (en) * | 2012-11-23 | 2013-02-13 | 攀枝花钢城集团有限公司 | Method for preparing polyaluminium chloride (PAC) |
| CA2950004A1 (en) * | 2014-05-26 | 2015-12-03 | Procede Ethanol Vert Technologie | Process for pure aluminum production from aluminum-bearing materials |
| WO2016049777A1 (en) * | 2014-10-03 | 2016-04-07 | Orbite Technologies Inc. | Methods for purifying aluminum ions |
| CN107324363A (en) * | 2017-07-28 | 2017-11-07 | 中国科学院生态环境研究中心 | A kind of high Al13The simple method for preparing of content aluminium polychloride |
| CA3075205A1 (en) * | 2017-09-08 | 2019-03-14 | Mina Therapeutics Limited | Stabilized hnf4a sarna compositions and methods of use |
| CN109721092A (en) * | 2019-01-24 | 2019-05-07 | 鄂尔多斯市蓝天白云环保材料有限责任公司 | The preparation method and its gained aluminium polychloride and purposes of a kind of aluminium polychloride |
| CN109748304A (en) * | 2019-01-24 | 2019-05-14 | 鄂尔多斯市蓝天白云环保材料有限责任公司 | The method of comprehensive utilization and product of waste residue in a kind of aluminium polychloride preparation process |
| CN111606339A (en) * | 2020-05-22 | 2020-09-01 | 内蒙古蒙泰集团有限公司 | Method for preparing aluminum-silicon oxide by using fly ash |
| CN114084895A (en) * | 2021-04-08 | 2022-02-25 | 内蒙古蒙泰集团有限公司 | Preparation method of polyaluminum chloride |
| CN113493218A (en) * | 2021-08-03 | 2021-10-12 | 重庆工商大学 | High-purity and high-AlbPreparation method of polyaluminium chloride |
Non-Patent Citations (1)
| Title |
|---|
| Coagulation of low temperature and low turbidity water: Adjusting basicity of polyaluminum chloride (PAC) and using chitosan as coagulant aid;Zhen Zhang et al.,;《Separation and Purification Technology》;第206卷;131–139 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114853043A (en) | 2022-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105107522B (en) | A kind of ferro manganese composite oxides catalyst and preparation method thereof | |
| CN114853043B (en) | Improve Al in polyaluminum chloride b Content method | |
| CN112850867B (en) | Deep defluorination medicament and preparation method thereof | |
| CN101948143A (en) | Method for preparing poly-silicate aluminum ferric chloride from fly ash | |
| CN110745852A (en) | Preparation method of high-stability polymeric aluminum chloride | |
| CN1288086C (en) | Method for preparing polyaluminium chloride through catalyst of deposed molecular sieve | |
| CN101759218B (en) | Preparation method of pulping waste water flocculant | |
| CN101279756B (en) | Preparation of polyaluminium sulfate | |
| CN111606401A (en) | Preparation method of high-purity polyaluminum chloride from water treatment inorganic flocculant | |
| CN1086195A (en) | The production method of efficient water-purifying agent and products thereof polysulphide aluminium ferric chloride | |
| WO2014094545A1 (en) | Polymeric titanium sulfate inorganic polymeric flocculant, and preparation method and application thereof | |
| CN115043545A (en) | Magnetic flocculation coupling photocatalysis water purification method and magnetic flocculation coupling photocatalysis water purification device | |
| CN113493218A (en) | High-purity and high-AlbPreparation method of polyaluminium chloride | |
| CN113955806A (en) | Production method of polyaluminum ferric chloride | |
| CN114084895A (en) | Preparation method of polyaluminum chloride | |
| CN109896574B (en) | Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof | |
| CN103663873A (en) | Water quality purification method | |
| CN111439767A (en) | Efficient preparation method for preparing aluminum sulfate by using waste | |
| CN113415863B (en) | Method for simultaneously preparing flocculating agent and snow-melting agent by using iron tailings | |
| CN110668538B (en) | Preparation method of titanium polychloride | |
| CN108640175A (en) | A kind of production method of purifying agent | |
| CN113292416A (en) | Production method for preparing sodium acetate by utilizing dihydroxy naphthalene waste liquid | |
| CN108906026B (en) | Lanthanum-cerium co-doped titanium oxide material based on mixed rare earth carbonate and preparation method thereof | |
| CN109250795B (en) | Method for rapidly preparing poly-silicate aluminum ferric sulfate by one-pot microwave radiation method | |
| CN111072116A (en) | Composite inorganic high polymer iron-based flocculant and preparation 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 |