CN109928473A - A kind of composite water purifying efficient flocculant preparation process - Google Patents
A kind of composite water purifying efficient flocculant preparation process Download PDFInfo
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- CN109928473A CN109928473A CN201910182249.1A CN201910182249A CN109928473A CN 109928473 A CN109928473 A CN 109928473A CN 201910182249 A CN201910182249 A CN 201910182249A CN 109928473 A CN109928473 A CN 109928473A
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- polyacrylamide
- ferric sulfate
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Abstract
The invention discloses a kind of composite water purifying efficient flocculant preparation processes, including bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator, bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator appearance is in faint yellow or yellowish, weight percent 10% -10.8% containing bodied ferric sulfate, weight percent containing polyacrylamide is 10.5%, bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator PH is 4.5-5.6, bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator preparation process includes bodied ferric sulfate preparation, polyacrylamide preparation and bodied ferric sulfate are mixed with polyacrylamide, the present invention relates to a kind of composite water purifying efficient flocculant preparation processes, the preparation of bodied ferric sulfate is carried out using hydrogen peroxide oxidation method, this method process route compared with Simply, equipment investment and production link can be reduced for industrial production, reduces equipment cost, the preparation process used in polyacrylamide preparation is simple, and preparation efficiency is high.
Description
Technical field
The invention belongs to composite water purifying efficient flocculant technology of preparing, specially a kind of composite water purifying efficient flocculant
Preparation process.
Background technique
In current flocculant preparation process, traditional single flocculant Shortcomings in the actual use process, because
There is compound efficient flocculant in the market in this, but the adding there is also inorganic flocculating agent of flocculant currently on the market
Amount is big, it is more to produce sludge quantity and handles complexity；The complicated problem of the expensive of organic polymer coargulator, synthesis process is right
This needs to design a kind of composite water purifying efficient flocculant preparation process.
Summary of the invention:
The object of the invention is that providing a kind of composite water purifying efficient flocculant preparation to solve the above-mentioned problems
Technique, the dosage for solving existing inorganic flocculating agent is big, it is more to produce sludge quantity and handles complexity；Organic polymer flocculation
The complicated problem of the expensive of agent, synthesis process.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions: a kind of composite water purifying efficient flocculant system
Standby technique, including bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator, the bodied ferric sulfate-polyacrylamide
Amine inorganic organic composite coagulator appearance is in faint yellow or yellowish, the weight percent 10%-containing bodied ferric sulfate
10.8%, the weight percent containing polyacrylamide is 10.5%, and the bodied ferric sulfate-polyacrylamide inorganic is organic multiple
Closing flocculant PH is 4.5-5.6, and the bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator preparation process includes
Bodied ferric sulfate preparation, polyacrylamide preparation and bodied ferric sulfate and polyacrylamide are mixed with, and preparation process is as follows:
Preferably, the preparation of the bodied ferric sulfate is first, in accordance with output and required basicity, in reaction kettle
Middle addition ferrous sulfate, water and sulfuric acid mixing, then be stirred by magnetic stirrer with 100 turns of revolving speed per minute, simultaneously
Electromagnetic heating is carried out to reaction kettle and is slowly added to H2O2 in bottom finally by charge pipe when temperature is increased to 30~45 DEG C,
H2O2 is quickly by ferrous oxidation at ferric iron, and when ferrous iron concentration is down to normal concentration, reaction stops sampling analysis.
Preferably, acrylamide is dissolved in distilled water by the preparation of the polyacrylamide first in three-necked bottle,
Concentration of ordinary dissolution is 10%, starts to be passed through nitrogen to system, after 30 minutes, a certain amount of BPO is added, loads onto reflux condensing tube, stir
Device is mixed, starts to stir, and to 50 DEG C or so, reaction starts heating water bath at the same time, maintaining nitrogen purge is answered in reaction, with anti-
It should carry out, system viscosity increases, and after 1 hour, reaction stops, then reactant is fallen in beaker, and nothing is slowly added into beaker
Water-ethanol or acetone, and be stirred continuously, at this moment polyacrylamide starts to be precipitated, when being precipitated there is no white solid, by gained
White solid dried under infrared lamp, be ground to powder and fill up to polyacrylamide, resulting polyacrylamide passes through measurement
Viscosity is it can be concluded that molecular weight.
Preferably, it is the poly- of 10:1 that the bodied ferric sulfate and polyacrylamide, which are mixed with first ratio of choosing respectively,
Close ferric sulfate and polyacrylamide, 45 degrees Celsius be mixed with environment under, hybrid reaction one hour, and pass through electromagnetic agitation
Device carries out auxiliary stirring, and speed of agitator is 100 times per minute, and positive and negative rotation each 15 minutes, auxiliary stirring reacted half small after stopping
When, prepare bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator finished product.
The beneficial effects of the present invention are: there is system the present invention relates to a kind of composite water purifying efficient flocculant preparation process
Standby high-efficient, free from foreign meter, the good organic polymer reaction of stability requires low feature, specific in use, answering with traditional
Mould assembly water purification efficient flocculant preparation process compares, this composite water purifying efficient flocculant preparation process utilizes hydrogen peroxide
Oxidizing process carry out bodied ferric sulfate preparation, this method process route is simpler, for industrial production can reduce equipment investment and
Production link reduces equipment cost, and the preparation process used in polyacrylamide preparation is simple, and preparation efficiency is high.
Specific embodiment:
Present embodiment uses a kind of following technical scheme: composite water purifying efficient flocculant preparation process, including
Bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator, the bodied ferric sulfate-polyacrylamide inorganic are organic multiple
Closing flocculant appearance is in faint yellow or yellowish, the weight percent 10% -10.8% containing bodied ferric sulfate, contains polyacrylamide
The weight percent of amine is 10.5%, and the bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator PH is 4.5-
5.6, the bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator preparation process includes bodied ferric sulfate preparation, gathers
Acrylamide preparation and bodied ferric sulfate are mixed with polyacrylamide, and preparation process is as follows:
Wherein, the preparation of the bodied ferric sulfate is first, in accordance with output and required basicity, in a kettle plus
Enter ferrous sulfate, water and sulfuric acid mixing, then is stirred by magnetic stirrer with 100 turns of revolving speed per minute, while to anti-
It answers kettle to carry out electromagnetic heating and is slowly added to H2O2, H2O2 in bottom finally by charge pipe when temperature is increased to 30~45 DEG C
Quickly by ferrous oxidation at ferric iron, when ferrous iron concentration is down to normal concentration, reaction stops sampling analysis.
Bodied ferric sulfate is produced using this law, reaction simple, with short production cycle with equipment does not have to catalyst, product not
Impure, the features such as stability is high, but in reaction process, there is H2O2 to form O2 when decomposing and release in no catalyst, rises not
To oxidation, the generation of O2 is reduced, the speed preparation process that adds for needing to control H2O2 is intermittent operation, influences to produce
Efficiency.
Wherein, acrylamide is dissolved in distilled water by the preparation of the polyacrylamide first in three-necked bottle, dissolution
Concentration is 10%, starts to be passed through nitrogen to system, and after 30 minutes, a certain amount of BPO is added, and (dosage of BPO is more depending on expecting
Depending on the polyacrylamide of macromolecule, BPO adds more, and Molecular Weight for Polyacrylamide is with regard to smaller), load onto reflux condensing tube,
Agitating device starts to stir, and to 50 DEG C or so, reaction starts heating water bath at the same time, and maintaining nitrogen purge is answered in reaction, with
Reaction carries out, and system viscosity increases, and after 1 hour, reaction stops, then reactant is fallen in beaker, is slowly added into beaker
Dehydrated alcohol or acetone, and be stirred continuously, at this moment polyacrylamide starts to be precipitated, when being precipitated there is no white solid, by institute
The white solid obtained is dried under infrared lamp, is ground to powder and is filled up to polyacrylamide, resulting polyacrylamide passes through survey
Viscosity is determined it can be concluded that molecular weight (general molecular weight 5,000,000 or so)；Before BPO, after carrying out recrystallization purification using acetone
It is placed in drier sombrely place to save, otherwise polymerization reaction is difficult to start.
Wherein, the bodied ferric sulfate and polyacrylamide are mixed with first ratio of choosing respectively as the polyaluminum sulfate of 10:1
Iron and polyacrylamide, 45 degrees Celsius be mixed with environment under, hybrid reaction one hour, and pass through magnetic stirrer carry out
Auxiliary stirring, speed of agitator are 100 times per minute, and positive and negative rotation each 15 minutes, auxiliary stirring was reacted half an hour after stopping, and was prepared
Bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator finished product out.
Use state of the invention are as follows: this composite water purifying efficient flocculant preparation process is carried out using hydrogen peroxide oxidation method
The preparation of bodied ferric sulfate, this method process route is simpler, can reduce equipment investment and production link for industrial production, drop
Low equipment cost, the preparation process used in polyacrylamide preparation is simple, and preparation efficiency is high, and bodied ferric sulfate is widely applied
In the purified treatment of drinking water, industrial water, various industrial wastewaters, municipal sewage, sludge dewatering etc., bodied ferric sulfate and other
Inorganic flocculating agent is compared and has the following characteristics that 1: novel, high-quality, efficient molysite class inorganic polymer flocculant；2: coagulation performance
Excellent, alumen ustum is closely knit, and sinking speed is fast；3: purifying water effect is excellent, and water quality is good, without nuisances such as aluminium, chlorine and heavy metal ion
Matter, also the water phase transfer of non-iron-ion, nontoxic, harmless, securely and reliably；4: turbidity removal, de-oiling, dehydration, degerming, deodorization, removes at decoloration
Algae goes COD, BOD and heavy metal ion and other effects in water removal significant.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, the technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of composite water purifying efficient flocculant preparation process, which is characterized in that including bodied ferric sulfate-polyacrylamide
Inorganic organic composite coagulator, the bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator appearance in faint yellow or
Yellowish, the weight percent 10% -10.8% containing bodied ferric sulfate, the weight percent containing polyacrylamide is 10.5%,
The bodied ferric sulfate-polyacrylamide inorganic organic composite coagulator PH is 4.5-5.6, the bodied ferric sulfate-poly- third
Acrylamide inorganic organic composite coagulator preparation process includes bodied ferric sulfate preparation, polyacrylamide preparation and polyaluminum sulfate
Iron is mixed with polyacrylamide.
2. a kind of composite water purifying efficient flocculant preparation process according to claim 1, it is characterised in that: the polymerization
It is mixed that ferrous sulfate, water and sulfuric acid is added first, in accordance with output and required basicity in the preparation of ferric sulfate in a kettle
It closes, then is stirred by magnetic stirrer with 100 turns of revolving speed per minute, while electromagnetic heating is carried out to reaction kettle, work as temperature
When degree is increased to 30~45 DEG C, it is slowly added to H2O2 in bottom finally by charge pipe, H2O2 is quickly by ferrous oxidation at trivalent
Iron, when ferrous iron concentration is down to normal concentration, reaction stops sampling analysis.
3. a kind of composite water purifying efficient flocculant preparation process according to claim 1, it is characterised in that: described poly- third
Acrylamide is dissolved in distilled water by the preparation of acrylamide first in three-necked bottle, and concentration of ordinary dissolution 10% starts to system
It is passed through nitrogen, after 30 minutes, a certain amount of BPO is added, loads onto reflux condensing tube, agitating device, starts to stir, and water at the same time
Bath is heated to 50 DEG C or so, and reaction starts, and maintaining nitrogen purge is answered in reaction, and as reaction carries out, system viscosity increases, and 1 hour
Afterwards, reaction stops, then reactant is fallen in beaker, dehydrated alcohol or acetone is slowly added into beaker, and be stirred continuously, this
When polyacrylamide start to be precipitated, when being precipitated there is no white solid, resulting white solid is dried under infrared lamp, is ground
Powder is milled to fill up to polyacrylamide.
4. a kind of composite water purifying efficient flocculant preparation process according to claim 1, it is characterised in that: the polymerization
Ferric sulfate and polyacrylamide are mixed with first ratio of choosing respectively as the bodied ferric sulfate and polyacrylamide of 10:1, take the photograph 45
Family name's degree is mixed under environment, and hybrid reaction one hour, and auxiliary stirring is carried out by magnetic stirrer, speed of agitator is every
Minute 100 times, positive and negative rotation each 15 minutes, auxiliary stirring reacted half an hour after stopping, and prepared bodied ferric sulfate-polypropylene
Amide inorganic organic composite coagulator finished product.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111995015A (en) * | 2020-07-07 | 2020-11-27 | 广西夏阳环保科技有限公司 | Composite heavy metal wastewater treatment agent and preparation method thereof |
| CN113636632A (en) * | 2021-09-13 | 2021-11-12 | 河南亿群环保科技有限公司 | Composite polymeric flocculant and preparation method thereof |
| CN115159649A (en) * | 2022-05-25 | 2022-10-11 | 广东粤首新科技有限公司 | Preparation method of sewage flocculant for catalyzing flue gas desulfurization |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111995015A (en) * | 2020-07-07 | 2020-11-27 | 广西夏阳环保科技有限公司 | Composite heavy metal wastewater treatment agent and preparation method thereof |
| CN113636632A (en) * | 2021-09-13 | 2021-11-12 | 河南亿群环保科技有限公司 | Composite polymeric flocculant and preparation method thereof |
| CN115159649A (en) * | 2022-05-25 | 2022-10-11 | 广东粤首新科技有限公司 | Preparation method of sewage flocculant for catalyzing flue gas desulfurization |
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Application publication date: 20190625 |