CN108946779A - A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride - Google Patents
A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride Download PDFInfo
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- CN108946779A CN108946779A CN201811157616.4A CN201811157616A CN108946779A CN 108946779 A CN108946779 A CN 108946779A CN 201811157616 A CN201811157616 A CN 201811157616A CN 108946779 A CN108946779 A CN 108946779A
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- 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
- C01F7/68—Aluminium compounds containing sulfur
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- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
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- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses the production methods and production system of a kind of high-purity Polyaluminium Sulfate Chloride, the system includes proportioner, reaction unit, after-treatment device, collection vessel and heat-exchanger rig, the heat-exchanger rig is connected to the outlet of proportioner, the first entrance of reaction unit, the outlet of reaction unit and the entrance of after-treatment device, first raw material mixed liquor of the outlet input through proportioner, pass through heat-exchanger rig, with the reaction product of the outlet input of reacted device, exchange heat；The first raw material mixed liquor after heating, the first entrance of reacted device are input in reaction unit；The entrance of reaction product after cooling, post-treated device is input in after-treatment device.Operation system structure provided by the invention is easy, can be used for continuous and automatic and prepares Polyaluminium Sulfate Chloride, and preparation method is high-efficient, low energy consumption, make full use of reaction heat, the heat of dilution and product heat, energy conservation, environmental protection, the product purity of preparation is high, high-quality, meets GB15892-2009 national standard.
Description
Technical field
The present invention relates to the production methods of inorganic high efficient water purification agent, and in particular to a kind of producer of high-purity Polyaluminium Sulfate Chloride
Method, high-purity Polyaluminium Sulfate Chloride can serve as efficient water-purifying agent, for purified treatments such as domestic water, industrial water, industrial wastewaters
And water-oil separating.
Background technique
Polyaluminium Sulfate Chloride PACS (polyalumnium sulfate chloride) is composite modified polyaluminium chloride, knot
Structure general formula is [Al4(OH)2nCl10-2n(SO4)]m, wherein n=1~4, m=1~5.Polyaluminium Sulfate Chloride can be used as flocculant, main
It is used for the special water quality processing of purifying drinking water and water supply, such as removes iron, fluorine, cadmium, radioactive pollution, except floating oil etc..
Currently, preparing majority when compound Polyaluminium Sulfate Chloride uses ripe miberal powder and common calcium aluminate, some is molten even with acid
Aluminium skimmings or aluminium slag, in the product produced, not only impurity is more, content of beary metal is exceeded, but also preparation method is cumbersome, energy consumption
Height, aluminum oxide (Al in the Polyaluminium Sulfate Chloride being prepared2O3) content and basicity it is low, yield is few, water purification ability is poor, leads
Various indexs in compound Polyaluminium Sulfate Chloride are caused to can not meet GB15892-2009 requirement, people are not achieved in the water quality for obtaining processing
The standard of daily drinking water.
CN105540794A discloses a kind of preparation method of compound Polyaluminium Sulfate Chloride, uses aluminum oxide for original
Material, while hydrochloric acid, sulfuric acid, water is added, 90 DEG C -120 DEG C are warming up to, carries out acid-base reaction under normal pressure, reaction time 2-3h is obtained
To solution A；0.25 part of calcium hydroxide is added into the solution A at 70 DEG C -90 DEG C, 4-4.5 parts of aluminium are added after ten minutes
Sour calcium, carries out polymerization reaction, and reaction time 1-2h obtains polymerization liquid B；After the solution B is cooled to 35 DEG C -45 DEG C,
High-molecular coagulant adopting is added, keeps the temperature 1-2h, obtains solution C；The solution C is filtered, the compound polysulfide chlorine of white clear is obtained
Change aluminum solutions D.
CN1040563 discloses one-step process for production of high-efficiency water clarifier-polyalum inosulfochloride, by aluminium hydroxide, alchlor, sulphur
Sour aluminium, sulfuric acid, hydrochloric acid, water base basic chemical raw material one-step process for production of high-efficiency water clarifier-polyalum inosulfochloride.
In short, the method for existing production Polyaluminium Sulfate Chloride is generally existing more using raw material, utilization rate of raw materials is low,
Energy consumption is high, and since production process link is more, artificial consumption is big, and the production cycle is long, and power consumption is more, and maintenance of equipment expense is big,
The low equal undesirable elements of product qualification rate.
Summary of the invention
Present invention aim to address the production predicament of current Polyaluminium Sulfate Chloride, a kind of energy-saving and environmental protection, high-efficient are provided
Production system and production method.
In order to achieve the above object, the present invention provides a kind of production system of high-purity Polyaluminium Sulfate Chloride, which includes
Proportioner, reaction unit, after-treatment device and collection vessel, wherein the system also includes: heat-exchanger rig, the heat-exchanger rig
It is connected to the outlet of proportioner, the first entrance of reaction unit, the outlet of reaction unit and the entrance of after-treatment device, through ingredient
First raw material mixed liquor of the outlet input of device, the reaction product inputted by heat-exchanger rig, the outlet with reacted device,
It exchanges heat；The first raw material mixed liquor after heating, the first entrance of reacted device is input in reaction unit, for carrying out
Chemical reaction, the entrance of the reaction product after cooling, post-treated device are input in after-treatment device, after carrying out
Reason.
Preferably, the reaction unit is additionally provided with second entrance, for inputting sulfuric acid raw material.
Preferably, the after-treatment device is connected to proportioner pipeline, match for not molten aluminium hydroxide to be input to
It is continued to use in material device.
Preferably, the reaction unit selects the more paddle reaction kettles of one-pot, it includes:
Reaction kettle shell；
Central reaction portion is located at reaction kettle center, is limited by coaming plate；And
Separate the reacting part one and reacting part two that limit by first partition and second partition；
Wherein, aperture is arranged in the second partition lower part, enables reacting part one and two one-way flow of reacting part；Center
Aperture is arranged in coaming plate lower part between reacting part and reacting part two, so that reacting part two and the one-way flow of central reaction portion；It is described
Reacting part one include several reaction zones by third baffle interval, which is provided with overflow hole, so that instead
Answer each reaction zone energy one-way flow in portion one.
Preferably, each reaction zone of the reacting part one, reacting part two and central reaction portion be provided with it is independent
Agitating device.
Preferably, the heat-exchanger rig selects graphite heat exchanger.
Preferably, the graphite heat exchanger selects plate heat exchanger or double pipe heat exchanger.
Preferably, the after-treatment device includes filter device.
The present invention also provides a kind of production method of high-purity Polyaluminium Sulfate Chloride, this method uses above-mentioned production system,
It comprises the steps of:
Step 1, aluminium hydroxide and hydrochloric acid are added separately in proportioner, are uniformly mixed, obtain the mixing of the first raw material
Liquid, the pipeline through heat-exchanger rig are input in reaction unit；
Step 2, sulfuric acid is added by the second entrance of reaction unit；By introducing SO4 2-Strengthen aluminum ions hydrolysis and gathers
It closes, generates the poly- Polyaluminium Sulfate Chloride of height of highly-effective low-residue；
Step 3, the temperature that heating reaction unit is needed to reaction, is chemically reacted；
Step 4, reaction product is exported and is exchanged heat through heat-exchanger rig and the first raw material mixed liquor, the first raw material after heating is mixed
Liquid is closed, the first entrance of reacted device is input in reaction unit, for carrying out next round chemical reaction；Reaction after cooling
The entrance of product, post-treated device is input in after-treatment device, for being post-processed；
Step 5, solid-liquor separation processing is carried out using after-treatment device to the reaction product after cooling, supernatant is input to receipts
Collect in container, obtains high-purity Polyaluminium Sulfate Chloride.
Preferably, the step 5 also includes: sediment is input in proportioner to reuse.
Operation system structure provided by the invention is easy, exchanges thermal energy using heat-exchanger rig, makes full use of reaction heat, dilution
Heat and product heat, avoid lasting heating and temperature reduction technology, can be used for continuous and automatic and prepare Polyaluminium Sulfate Chloride, and preparation side
Method is high-efficient, and low energy consumption, makes full use of reaction heat, the heat of dilution and product heat, the product purity of energy conservation, environmental protection, preparation is high, quality
It is good, meet GB15892-2009 national standard.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the production system of high-purity Polyaluminium Sulfate Chloride of the invention.
Fig. 2 is the structural schematic diagram for the reaction unit that production system of the invention uses.
Specific embodiment
Below in conjunction with drawings and examples, the following further describes the technical solution of the present invention.
As shown in Figure 1 be a kind of high-purity Polyaluminium Sulfate Chloride of the invention production system, the system include proportioner 1,
Heat-exchanger rig 2, reaction unit 3, after-treatment device 4 and collection vessel 5.
The heat-exchanger rig 2 is connected to the outlet of proportioner 1, the first entrance of reaction unit 3, reaction unit 3 go out
The entrance of mouth and after-treatment device 4.First raw material mixed liquor of the outlet input through proportioner 1 be (aluminium hydroxide and hydrochloric acid
Mixed liquor), the reaction product inputted by heat-exchanger rig 2, the outlet with reacted device 3 exchanges heat；First after heating
The first entrance of raw material mixed liquor, reacted device 3 is input in reaction unit 3, anti-after cooling for being chemically reacted
Product is answered, the entrance of post-treated device 4 is input in after-treatment device 4, for being post-processed.
The reaction unit 3 is additionally provided with second entrance, for inputting sulfuric acid raw material.
The after-treatment device 4 is connected to 1 pipeline of proportioner, for not molten aluminium hydroxide to be input to proportioner
In continue to use.
The heat-exchanger rig 2 selects graphite heat exchanger.In some embodiments, the graphite heat exchanger selects board-like change
Hot device or double pipe heat exchanger.
The after-treatment device includes filter device.In some embodiments, the filter device selects filter press.
The reaction unit selects the more paddle reaction kettles of one-pot as shown in Figure 2, it includes:
Reaction kettle shell 10；
Central reaction portion 20 is located at reaction kettle center, is limited by coaming plate 21；And
Separate the reacting part 1 and reacting part 2 40 that limit, the first partition by first partition 31 and second partition 32
31, second partition 32 is arranged between coaming plate 21 and reaction kettle shell 10.
Wherein, which completely cut off reacting part 1 and reacting part 2 40 completely, due in reacting part 2 40
Reaction is completed, in order to avoid overflow to the first reaction zone (reacting part 1)；The second partition 32 setting aperture (preferably,
It is arranged in lower part), enable reacting part 1 and 2 40 one-way flow of reacting part；Between central reaction portion 20 and reacting part 2 40
Coaming plate aperture is set, reacting part 2 40 and central reaction portion 20 are circulated, it is preferable that the central reaction portion 20 and
The aperture of coaming plate between reacting part 2 40 is arranged in lower part；The central reaction portion 20, reacting part 1, reacting part 2 40
It is provided with agitating device 50.
The reacting part 1 includes several reaction zones being spaced by third partition 33, which is provided with solely
Vertical agitating device is provided with overflow hole on the third partition 33, each reaction zone in reacting part 1 is circulated, excellent
The top of third partition 33 is arranged in selection of land, the overflow hole on the third partition 33.
The purpose of setting of second partition 32, the third partition 33 is in order not to allow material quickly to enter next reaction
Area, to ensure the reaction time.
The coaming plate 21 can be rectangular or round, it is preferable that the coaming plate 21 is cylindrical shape.
Reaction unit of the invention uses the more paddle reaction kettles of one-pot, and more agitating devices are installed in the same reaction kettle,
Multiple reaction zones are formed, achieve the purpose that automated production -- raw material are uniformly added into the first reaction zone is round-the-clock, often
There is partition between a reaction zone, the partition between the first reaction zone and final reaction zone is not connected to, and makes material by multiple reactions
Qu Hou reacts completeness close to 100%.The more paddle reaction systems of the one-pot for continuously preparing liquid Polyaluminium Sulfate Chloride, it is convenient from
The central reaction portion extraction product for completing reaction exchanges heat with the first raw material mixed liquor, and reaction product is not only omitted
Temperature reduction technology reduces energy consumption, is also used to heat the first raw material mixed liquor for the thermal energy, reduces the heating step to reaction raw materials
Suddenly, not only safer, energy consumption is also ad save, after reaction starts, in this way it is no longer necessary to heat, take full advantage of anti-to reaction kettle
Answer heat, the heat of dilution and product heat.
Embodiment
The production method of a kind of high-purity Polyaluminium Sulfate Chloride of the invention, using above-mentioned production system comprising the steps of:
Step 1, contain Al for 3000 kilograms2O3For 60% industrial aluminium hydroxide (wet-milling) and 5350 kilogram 31% of synthesis
Hydrochloric acid is added separately in proportioner, is uniformly mixed, and the first raw material mixed liquor (the high-purity polyaluminium chloride product of heat) is obtained, through changing
The pipeline of thermal is input in the reacting part 1 of reaction unit (8000 liters of glassed steel reaction vessels) close to first partition 31
Reaction zone；
Step 2, into reacting part 1 close to the sulfuric acid of 630 kilogram 98% of addition in the reaction zone of first partition 31；
Step 3, the temperature that heating reaction unit is needed to reaction, pressurization, is chemically reacted, and exothermic reaction temperature can be high
Up to 150 DEG C；
Step 4, the extraction product from center reacting part 20 exchanges heat through heat-exchanger rig and the first raw material mixed liquor, rises
The first raw material mixed liquor (up to 120 DEG C) after temperature, the first entrance of reacted device is input in reaction unit (reacting part
Close to the reaction zone of first partition 31 in one 30), it is not required to reheat, it is next together as reaction raw materials progress with the sulfuric acid of addition
Wheel chemical reaction；The entrance of reaction product after cooling, post-treated device is input in after-treatment device, after carrying out
Reason；
Step 5, the reaction product after cooling is handled using after-treatment device (such as filter press), carries out solid-liquor separation, supernatant
Liquid is input in collection vessel, obtains high-purity Polyaluminium Sulfate Chloride；The basicity of the liquid polysulfide aluminium chloride product up to 45% with
On, meet GB15892-2009 national standard.In use, being also diluted with water to the concentration of various needs.
Further, sediment that step 5 separates (a small amount of undissolved aluminium hydroxide) can be input in proportioner with
It reuses.
In technique of the invention, hydrochloric acid, aluminium hydroxide slurry (the high-purity polyaluminium chloride product of heat) are through metering pump uniformly continuous
In continual the first reaction zone (close to the reaction zone of first partition 31 in reacting part one) for being added to the more paddle reaction kettles of one-pot,
Exothermic reaction is carried out together with sulfuric acid, reaction stops certain time from top overflow into next reaction zone, and the reaction was continued stops
Certain time enters next reaction zone from top overflow.Reaction complete material through can computer-controlled pressure pump continuously
Extraction, through heat-exchanger rig, exchanges heat with the first raw material mixed liquor, and the reaction product after cooling carries out solid-liquor separation, when close
When pressure is full, next filter device is switched to, mother liquor is product liquid Polyaluminium Sulfate Chloride.
In conclusion operation system structure provided by the invention is easy, it can be used for continuous and automatic and prepare Polyaluminium Sulfate Chloride,
And preparation method is high-efficient, low energy consumption, makes full use of reaction heat, the heat of dilution and product heat, energy conservation, environmental protection, the product of preparation pure
Degree is high, high-quality, meets GB15892-2009 national standard.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. a kind of production system of high-purity Polyaluminium Sulfate Chloride, which includes proportioner, reaction unit, after-treatment device and receipts
Collect container, which is characterized in that the system also includes: heat-exchanger rig, which is connected to the outlet of proportioner, reaction unit
First entrance, the outlet of reaction unit and the entrance of after-treatment device, the first raw material of the outlet input through proportioner is mixed
Liquid is closed, the reaction product inputted by heat-exchanger rig, the outlet with reacted device exchanges heat；The first raw material after heating
The first entrance of mixed liquor, reacted device is input in reaction unit, and for being chemically reacted, the reaction after cooling is produced
The entrance of object, post-treated device is input in after-treatment device, for being post-processed；The reaction unit is additionally provided with use
In the second entrance of input sulfuric acid raw material.
2. the production system of high-purity Polyaluminium Sulfate Chloride as described in claim 1, which is characterized in that the reaction unit selection
The more paddle reaction kettles of one-pot, it includes:
Reaction kettle shell；
Central reaction portion is located at reaction kettle center, is limited by coaming plate；And
Separate the reacting part one and reacting part two that limit by first partition and second partition；
Wherein, aperture is arranged in the second partition lower part, enables reacting part one and two one-way flow of reacting part；Central reaction
Aperture is arranged in coaming plate lower part between portion and reacting part two, so that reacting part two and the one-way flow of central reaction portion；Described is anti-
Answering portion one includes several reaction zones by third baffle interval, which is provided with overflow hole, so that reacting part
Each reaction zone energy one-way flow in one.
3. the production system of high-purity Polyaluminium Sulfate Chloride as claimed in claim 2, which is characterized in that the reacting part one it is every
A reaction zone, reacting part two and central reaction portion are provided with independent agitating device.
4. the production system of high-purity Polyaluminium Sulfate Chloride as described in claim 1, which is characterized in that the heat-exchanger rig selection
Graphite heat exchanger.
5. the production system of high-purity Polyaluminium Sulfate Chloride as claimed in claim 4, which is characterized in that the graphite heat exchanger choosing
With plate heat exchanger or double pipe heat exchanger.
6. the production system of high-purity Polyaluminium Sulfate Chloride as described in claim 1, which is characterized in that the after-treatment device with
The connection of proportioner pipeline, continues to use for not molten aluminium hydroxide to be input in proportioner.
7. the production system of high-purity Polyaluminium Sulfate Chloride as described in claim 1, which is characterized in that the after-treatment device packet
Containing filter device.
8. a kind of production method of high-purity Polyaluminium Sulfate Chloride, which is characterized in that this method is using any one of claim 1-7
The production system comprising the steps of:
Step 1, aluminium hydroxide and hydrochloric acid are added separately in proportioner, are uniformly mixed, obtain the first raw material mixed liquor, passed through
The pipeline of heat-exchanger rig is input in reaction unit；
Step 2, sulfuric acid is added by the second entrance of reaction unit；
Step 3, the temperature that heating reaction unit is needed to reaction, is chemically reacted；
Step 4, reaction product is exported and is exchanged heat through heat-exchanger rig and the first raw material mixed liquor, the first raw material mixing after heating
The first entrance of liquid, reacted device is input in reaction unit, for carrying out next round chemical reaction；Reaction after cooling produces
The entrance of object, post-treated device is input in after-treatment device, for being post-processed；
Step 5, solid-liquor separation processing is carried out using after-treatment device to the reaction product after cooling, supernatant, which is input to collection, to be held
In device, high-purity Polyaluminium Sulfate Chloride is obtained.
9. the production method of high-purity Polyaluminium Sulfate Chloride as claimed in claim 8, which is characterized in that the step 5 also includes:
Sediment is input in proportioner to reuse.
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| CN201811157616.4A CN108946779A (en) | 2018-09-30 | 2018-09-30 | A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride |
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| CN201811157616.4A CN108946779A (en) | 2018-09-30 | 2018-09-30 | A kind of production method and production system of high-purity Polyaluminium Sulfate Chloride |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292091A (en) * | 2021-05-17 | 2021-08-24 | 太仓市业洪净水新材料有限公司 | Preparation process of polyaluminum chloride polysulfide flocculant for low-temperature high-turbidity water treatment |
| CN114873624A (en) * | 2022-05-30 | 2022-08-09 | 广东碧之江环保能源股份有限公司 | Stable polyaluminium chloride sulfate production method |
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| CN101541692A (en) * | 2006-11-27 | 2009-09-23 | 考格尼斯知识产权管理有限责任公司 | Method and facility for the production of soluble glass using heat recovery |
| CN101734702A (en) * | 2008-11-26 | 2010-06-16 | 天津天水净水材料有限责任公司 | Device and method for generating liquid high purity nanometer polyaluminium chloride |
| CN105692718A (en) * | 2016-04-29 | 2016-06-22 | 上海高桥大同净水材料有限公司 | Method for automatic production of liquid polyaluminium-ferric chloride sulfate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101541692A (en) * | 2006-11-27 | 2009-09-23 | 考格尼斯知识产权管理有限责任公司 | Method and facility for the production of soluble glass using heat recovery |
| CN101734702A (en) * | 2008-11-26 | 2010-06-16 | 天津天水净水材料有限责任公司 | Device and method for generating liquid high purity nanometer polyaluminium chloride |
| CN105692718A (en) * | 2016-04-29 | 2016-06-22 | 上海高桥大同净水材料有限公司 | Method for automatic production of liquid polyaluminium-ferric chloride sulfate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292091A (en) * | 2021-05-17 | 2021-08-24 | 太仓市业洪净水新材料有限公司 | Preparation process of polyaluminum chloride polysulfide flocculant for low-temperature high-turbidity water treatment |
| CN114873624A (en) * | 2022-05-30 | 2022-08-09 | 广东碧之江环保能源股份有限公司 | Stable polyaluminium chloride sulfate production method |
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Application publication date: 20181207 |