CN110040832A - A kind of preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud - Google Patents
A kind of preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud Download PDFInfo
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- CN110040832A CN110040832A CN201910478864.7A CN201910478864A CN110040832A CN 110040832 A CN110040832 A CN 110040832A CN 201910478864 A CN201910478864 A CN 201910478864A CN 110040832 A CN110040832 A CN 110040832A
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- red mud
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- aluminium silicate
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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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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The preparation method for polymerizeing aluminium silicate-sulphate ferric flocculant based on red mud that the invention discloses a kind of, it is related to composite flocculation agent technical field, the preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud, prepared poly aluminium iron silicate composite flocculating agent is a kind of water process high polymer coagulant, it is made of using red mud waste material as primary raw material, efficiently utilize the iron oxide in red mud waste material, aluminium oxide and silica, prepare polymeric aluminum sulfate silicate iron composite flocculation agent, a large amount of red mud waste materials are used in production and application, both it had solved red mud waste material largely to pollute environment bring, red mud waste resource recovery can be utilized again, use cost is low during manufacturing, added value of product is high, improve the comprehensive utilization ratio of red mud waste material, with good social benefit, economic benefit and environmental benefit, wadding is being manufactured to people Very big convenience is brought when solidifying agent.
Description
Technical field
The present invention relates to composite flocculation agent technical field, specially a kind of polymerization aluminium silicate-sulphate ferric flocculant based on red mud
Preparation method.
Background technique
Coagulation is one of most widely used monotechnics in current water treatment field.It is all to be drunk using surface water as cities and towns
With the purified treatment of water or industrial water water source, the processing of various industrial wastewaters, municipal sewage, oil field groundwater recharge and sludge
Disposition and city, the processing of industrial reuse water depth etc., all usually using coagulation as the preposition key in water treatment technological process
Unit technology, the i.e. pretreatment process as pollution impurity separation removal.But the quality of coagulating treatment effect is largely
On not only determine the operation conditions of follow-up processing flow, but also the effluent characteristics of full process stream journey but will be influenced and be processed into
This.
In order to make coagulation technology play a significant role in terms of the various pollutants in removal water body, it is necessary to develop
Tripartite's surface technology, including coagulant, suitable for coagulant coagulation property high efficient coagulating device and with efficient medicine
The automatic dosing control system of agent and reactor compatibility.Wherein, developing coagulant is the important of current coagulation technology field
Developing direction.The core value for developing coagulant in practice is: reducing dosing and technology expense to the maximum extent
With and reach anticipated optimal set or acceptable purifying water effect conscientiously.
It is net since flocculant is mainly worked by absorption charge neutrality effect and adsorption bridging effect in water process
Water effect and its fractions distribution, charged situation and aggregation size are closely related.It introduces and lives in inorganic aluminum molysite mixed system
Property silicon, be improve inorganic aluminum Ferric Salt Flocculants important method.The hydrolytic polymerization energy of alite can be improved in the addition of activated silica
Power improves the surface charge of alite flocculant, reinforces its charge neutrality effect, improves its coagulability, thus by alite with
Activated silica is compound to prepare novel inorganic composite flocculation agent, can both play the double electricity of neutralization charge compression of inorganic flocculating agent ferro-aluminum simultaneously
Layer effect can also catch and adsorb the effect of crook band using the net of activated silica, improve the de- steady sedimentation capacity of flocculant, make it have
Medicament administration amount is low, has a wide range of application, is easy to use, economic advantage.Novel inorganic composite flocculant will have traditional wadding
The incomparable purifying water effect of solidifying agent, the development and exploitation of inorganic composite flocculant will water supply industry, water pollution control and dirts
Mud dehydrating and conditioning brings huge variation, by for China start one efficiently, low consumption, low investment water process situation.
The industrial wastes such as red-mud coal ash are rich in ferro-silicon-aluminium element, and most of is trade waste, annual global production
Hundred million tons were given birth to, only China about discharges about 2,000,000 tons of red mud every year, and the so a large amount of red mud overwhelming majority is deposited in spoil area,
A large amount of soils are occupied, soil is caused to alkalize, underground water is contaminated, and endangers people's health.A large amount of aluminium oxide, oxygen in red mud
Change the metal resources such as iron and do not obtain sufficiently effective utilization yet at present, to cause the huge waste of resource.How red mud is made
In aluminium oxide, iron oxide rationally recycle, be particularly important weary today in metallic mineral resources increasingly plaque.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the system for polymerizeing aluminium silicate-sulphate ferric flocculant based on red mud that the present invention provides a kind of
Preparation Method realizes using iron oxide, aluminium oxide and the silica in industrial red mud waste material, it is compound to prepare polymeric aluminum sulfate silicate iron
Flocculant provides new approach for the comprehensive utilization of red mud waste material.
(2) technical solution
To achieve the above objectives, the technical solution adopted by the present invention is that: it is a kind of based on red mud polymerization aluminium silicate-sulphate iron wadding
The preparation method of solidifying agent, the described method comprises the following steps:
S1,1 part of red mud, 0.6-1.3 parts of ferrous sulfate, 0.4-0.9 parts of alkali are sufficiently mixed by weight, will be mixed
Object calcining；
S2, mixture are cooled down after the completion of calcining, then grind mixture after cooling, obtain activating red
Mud powder；
S3, prepare the hydrochloric acid that volume ratio is 1: 1, hydrochloric acid is placed in the container of appropriate size, it is resulting that S2 is then added
Activate red mud powder；
S4,1 part of red mud powder will be activated with 10 parts of hydrochloric acid by weight progress picklings；
S5, it addition stabilizer will react, be filtered up to polymeric aluminum sulfate silicate iron in acidleach product solution obtained in S4
Composite flocculation agent.
Preferably, the activation red mud powder in the S2 is ground into the partial size of 100-300 mesh.
Preferably, the pickling time in the S4 is 3 hours, and the environment temperature of pickling process is 50-80 DEG C.
Preferably, stabilizer used in the S5 is disodium hydrogen phosphate, potassium dihydrogen phosphate, calcium superphosphate and di(2-ethylhexyl)phosphate
One or more of hydrogen ammonium, the stabilizing agent dosage are the 0.4% of solution quality.
(3) beneficial effect
The beneficial effects of the present invention are:
It 1, should be based on the preparation method of the polymerization aluminium silicate-sulphate ferric flocculant of red mud, the compound wadding of prepared poly aluminium iron silicate
Solidifying agent is a kind of water process high polymer coagulant, is made of that it is useless to efficiently utilize red mud using red mud waste material as primary raw material
Iron oxide, aluminium oxide and silica in material, prepare polymeric aluminum sulfate silicate iron composite flocculation agent, using a large amount of in production and application
Red mud waste material had not only solved red mud waste material and had largely polluted to environment bring, but also red mud waste resource recovery can be utilized, raw
It is low to produce use cost in manufacturing process, added value of product height improves the comprehensive utilization ratio of red mud waste material, has good society
Benefit, economic benefit and environmental benefit bring very big convenience when manufacturing flocculant to people.
2, polymeric silicicacid and aluminium system, iron should be combined based on the preparation method of the polymerization aluminium silicate-sulphate ferric flocculant of red mud
The advantages of based flocculating agent, molecule aggregation degree is big, multicomponent collaboration hair having with adsorption bridging and while charge neutrality effect
The characteristics of waving effect, stability and purifying water effect are excellent, and with molecular weight, big, ferro-silico aluminium is evenly distributed, and flocculating effect is good
Advantage, polymeric aluminum sulfate silicate iron composite flocculation agent stable product quality are influenced small, most preferably dispensing wider range, while turbidity removal by pH
Good decolorizing effect, residual aluminium content is low, is a kind of efficient water treatment flocculant, can be widely used for water supply purification, wastewater treatment mistake
Turbidity removal, decoloration, de-oiling in journey and sludge conditioning are separated by solid-liquid separation, and there is no residual aluminum and coloration are higher for treated water
The problem of.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: a kind of preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud,
It the described method comprises the following steps:
S1,1 part of red mud, 0.6-1.3 parts of ferrous sulfate, 0.4-0.9 parts of alkali are sufficiently mixed by weight, will be mixed
Object calcining；
S2, mixture are cooled down after the completion of calcining, then grind mixture after cooling, obtain activating red
Mud powder, activation red mud powder are ground into the partial size of 100-300 mesh；
S3, prepare the hydrochloric acid that volume ratio is 1: 1, hydrochloric acid is placed in the container of appropriate size, it is resulting that S2 is then added
Activate red mud powder；
S4,1 part of red mud powder will be activated with 10 parts of hydrochloric acid by weight picklings are carried out, the pickling time is 3 hours, and pickling
The environment temperature of journey is 50-80 DEG C；
S5, it addition stabilizer will be reacted in acidleach product solution obtained in S4, stabilizer is disodium hydrogen phosphate, phosphorus
One or more of acid dihydride potassium, calcium superphosphate and ammonium dihydrogen phosphate, the stabilizing agent dosage are the 0.4% of solution quality,
It filters up to polymeric aluminum sulfate silicate iron composite flocculation agent.
The advantages and positive effects of the present invention include:
It 1, should be based on the preparation method of the polymerization aluminium silicate-sulphate ferric flocculant of red mud, the compound wadding of prepared poly aluminium iron silicate
Solidifying agent is a kind of water process high polymer coagulant, is made of that it is useless to efficiently utilize red mud using red mud waste material as primary raw material
Iron oxide, aluminium oxide and silica in material, prepare polymeric aluminum sulfate silicate iron composite flocculation agent, using a large amount of in production and application
Red mud waste material had not only solved red mud waste material and had largely polluted to environment bring, but also red mud waste resource recovery can be utilized, raw
It is low to produce use cost in manufacturing process, added value of product height improves the comprehensive utilization ratio of red mud waste material, has good society
Benefit, economic benefit and environmental benefit bring very big convenience when manufacturing flocculant to people.
2, polymeric silicicacid and aluminium system, iron should be combined based on the preparation method of the polymerization aluminium silicate-sulphate ferric flocculant of red mud
The advantages of based flocculating agent, molecule aggregation degree is big, multicomponent collaboration hair having with adsorption bridging and while charge neutrality effect
The characteristics of waving effect, stability and purifying water effect are excellent, and with molecular weight, big, ferro-silico aluminium is evenly distributed, and flocculating effect is good
Advantage, polymeric aluminum sulfate silicate iron composite flocculation agent stable product quality are influenced small, most preferably dispensing wider range, while turbidity removal by pH
Good decolorizing effect, residual aluminium content is low, is a kind of efficient water treatment flocculant, can be widely used for water supply purification, wastewater treatment mistake
Turbidity removal, decoloration, de-oiling in journey and sludge conditioning are separated by solid-liquid separation, and there is no residual aluminum and coloration are higher for treated water
The problem of.
Embodiment 1:
1Kg red mud, 1Kg ferrous sulfate and 0.5Kg soda ash are weighed first to be sufficiently mixed, and said mixture is calcined 1 hour,
Then cooled to room temperature, then mixture after cooling is ground, it is ground into the partial size of 200 mesh, then by volume ratio
It is stirred acidleach 3 hours under the conditions of 70 DEG C of temperature for the activation red mud powder of 1:1 and the technical hydrochloric acid of 25kg, finally by acidleach product
Stabilizer is added in solution to be reacted, stabilizer is disodium hydrogen phosphate, and stabilizing agent dosage is the 0.4% of solution quality, filtering
Up to polymeric aluminum sulfate silicate iron composite flocculation agent, product does not occur gel after saving 60 days.
Embodiment 2:
1.5Kg red mud, 1.95Kg ferrous sulfate and 1.3Kg soda ash are weighed first to be sufficiently mixed, and said mixture is calcined
1.5 hours, then cooled to room temperature, then mixture after cooling is ground, it is ground into the partial size of 100 mesh, then
The technical hydrochloric acid of activation red mud powder and 50kg that volume ratio is 1:1 is stirred acidleach 3 hours under the conditions of 80 DEG C of temperature, finally will
Stabilizer is added in acidleach product solution to be reacted, stabilizer is calcium superphosphate, and stabilizing agent dosage is solution quality
0.4%, it filters up to polymeric aluminum sulfate silicate iron composite flocculation agent, product does not occur gel after saving 60 days.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (4)
1. it is a kind of based on red mud polymerization aluminium silicate-sulphate ferric flocculant preparation method, it is characterised in that: the method includes with
Lower step:
S1,1 part of red mud, 0.6-1.3 parts of ferrous sulfate, 0.4-0.9 parts of alkali are sufficiently mixed by weight, mixture is forged
It burns；
S2, mixture are cooled down after the completion of calcining, then grind mixture after cooling, obtain activation red mud
Powder；
S3, prepare the hydrochloric acid that volume ratio is 1: 1, hydrochloric acid is placed in the container of appropriate size, the resulting activation of S2 is then added
Red mud powder；
S4,1 part of red mud powder will be activated with 10 parts of hydrochloric acid by weight progress picklings；
S5, it addition stabilizer will react, filter compound up to polymeric aluminum sulfate silicate iron in acidleach product solution obtained in S4
Flocculant.
2. a kind of preparation method of polymerization aluminium silicate-sulphate ferric flocculant based on red mud according to claim 1, feature
Be: the activation red mud powder in the S2 is ground into the partial size of 100-300 mesh.
3. a kind of preparation method of polymerization aluminium silicate-sulphate ferric flocculant based on red mud according to claim 1, feature
Be: the pickling time in the S4 is 3 hours, and the environment temperature of pickling process is 50-80 DEG C.
4. a kind of preparation method of polymerization aluminium silicate-sulphate ferric flocculant based on red mud according to claim 1, feature
Be: stabilizer used in the S5 is one in disodium hydrogen phosphate, potassium dihydrogen phosphate, calcium superphosphate and ammonium dihydrogen phosphate
Kind is several, and the stabilizing agent dosage is the 0.4% of solution quality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910478864.7A CN110040832A (en) | 2019-06-03 | 2019-06-03 | A kind of preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud |
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| CN201910478864.7A CN110040832A (en) | 2019-06-03 | 2019-06-03 | A kind of preparation method of the polymerization aluminium silicate-sulphate ferric flocculant based on red mud |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018619A (en) * | 2019-12-17 | 2020-04-17 | 河南省地质环境规划设计院有限公司 | Soil remediation modifier for red mud reservoir remediation, preparation method thereof and ecological remediation treatment method for red mud reservoir |
| CN115180797A (en) * | 2022-07-15 | 2022-10-14 | 上海申英环保科技有限公司 | Polyaluminum ferric silicate medicament for sewage treatment and preparation method and application thereof |
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| CN104941572A (en) * | 2015-06-29 | 2015-09-30 | 湖南农业大学 | Red mud composite material for wastewater treatment as well as preparation method and application of red mud composite material |
| CN108083345A (en) * | 2017-12-14 | 2018-05-29 | 中山大学 | A kind of method that polymeric aluminum sulfate silicate iron composite flocculation agent is prepared using red mud waste material |
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| US20120125862A1 (en) * | 2007-04-20 | 2012-05-24 | Cytec Technology Corp. | Use of silicon-containing polymers to improve red mud flocculation in the bayer process |
| RU2411191C1 (en) * | 2009-07-20 | 2011-02-10 | Федеральное государственное образовательное учреждение высшего профессионального образования Санкт-Петербургский государственный университет (СПбГУ) | Coagulant-adsorbent for cleaning industrial wastes from heavy metals, method of producing coagulant-adsorbent for cleaning industrial wastes from heavy metals and method of using coagulant-adsorbent for cleaning industrial wastes from heavy metals |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018619A (en) * | 2019-12-17 | 2020-04-17 | 河南省地质环境规划设计院有限公司 | Soil remediation modifier for red mud reservoir remediation, preparation method thereof and ecological remediation treatment method for red mud reservoir |
| CN115180797A (en) * | 2022-07-15 | 2022-10-14 | 上海申英环保科技有限公司 | Polyaluminum ferric silicate medicament for sewage treatment and preparation method and application thereof |
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