CN108505060A - Method is prepared in situ in a kind of salinity control type hypochlorite - Google Patents
Method is prepared in situ in a kind of salinity control type hypochlorite Download PDFInfo
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- CN108505060A CN108505060A CN201810201037.9A CN201810201037A CN108505060A CN 108505060 A CN108505060 A CN 108505060A CN 201810201037 A CN201810201037 A CN 201810201037A CN 108505060 A CN108505060 A CN 108505060A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of method that is prepared in situ of salinity control type hypochlorite, including just step processed, just step processed is specially：Water processed at the beginning of water processed and second at the beginning of softened water is divided into first, wherein, water processed enters in the dissolved salt tank equipped with refining industrial salt at the beginning of first, obtain the first saturated brine, second just water processed and the first saturated brine be mixed to get after the second weak brine and carry out temperature control, the mass concentration of the second weak brine is 1.5% 2.5%.The preparation method of the present invention makes system operation cost greatly reduce；Meanwhile effective chlorine density is that 0.8% 1.0% can stablize and do not decompose, has both reduced transport and has added cost, has in turn avoided the decomposition of liquor natrii hypochloritis.
Description
Technical field
The present invention relates to disinfection water treatment field more particularly to a kind of sides of being prepared in situ of salinity control type hypochlorite
Method.
Background technology
With constantly contaminated and water resource the continuous shortage of water resource on the earth, disinfection water process seems more and more heavier
It wants；Cholorination is current the most widely used water sterilization method, is played an important role in terms of pre- waterproof spreads the disease.
Cholorination mainly adds chlorine or hypochlorite (such as NaClO) into water, can generally generate hypochlorous acid (HClO) and hydrochloric acid
(HCl).The approach for obtaining liquor natrii hypochloritis at present mainly has chlor-alkali plant to manufacture and be prepared in situ, and the secondary chlorine of chlor-alkali plant manufacture
Available chlorine content is 10% or so in acid sodium solution, however lot of experimental data shows the liquor natrii hypochloritis of high concentration easily
It decomposes, daily decomposition amount has reached 0.4mg/L-0.7mg/L, caused the great wasting of resources；Meanwhile high concentration hypochlorous acid
Sodium solution belongs to dangerous material as chlorine, and transport and preservation cost are quite high, and there are great security risks.Sodium hypochlorite is sent out
Raw device generates the sodium hypochlorite solution of low concentration, its Disinfection Effect is good, and it is accurate to add, and safe operation is easy to use, easily stored,
To environment nonhazardous, second of pollution is not generated, and there is advantage very much.
Currently, sodium hypochlorite preparation system in market that there are salt consumptions is excessively high, effective chlorine density is unstable, operating cost compared with
Greatly, the problems such as production system stability is poor.The hypochlorite generator manufacturer of mainstream uses 3% or more brine at present
Concentration, liquor natrii hypochloritis's concentration of preparation is in 0.5%-0.8%, and salt is consumed in 4.0Kg/kg or more, and effective chlorine manufacturing cost is non-
Chang Gao；Meanwhile liquor natrii hypochloritis's concentration be less than 0.8% when, increase transport and add cost.Therefore, the prior art is low dense
Degree liquor natrii hypochloritis's production method significantly limits the popularization and application of hypochlorite generator.
Invention content
For overcome the deficiencies in the prior art, showing the purpose of the present invention is to provide a kind of salinity control type hypochlorite
Field preparation method, by second after the first saturated brine and sofening treatment in dissolved salt tank, just water processed passes through flow to the preparation method
Meter mixing adjusts brine strength in 1.5%-2.5%, is by the liquor natrii hypochloritis's effective chlorine density generated after electrolysis
0.8%-1.0%, salt consumption is in 2.3Kg/kg hereinafter, therefore, which greatly reduces；Meanwhile effective chlorine density
It can stablize for 0.8%-1.0% and not decompose, both reduce transport and added cost, in turn avoid the decomposition of liquor natrii hypochloritis.
The purpose of the present invention adopts the following technical scheme that realization：
Method, including just step processed is prepared in situ in a kind of salinity control type hypochlorite, and just step processed is specially：It will be soft
It is water processed at the beginning of water processed and second at the beginning of first to change moisture, wherein water processed enters in the dissolved salt tank equipped with refining industrial salt at the beginning of first, obtains
To the first saturated brine, second, just water processed and the first saturated brine carry out temperature control, second dilute salt after being mixed to get the second weak brine
The mass concentration of water is 1.5%-2.5%.
Further, refining industrial salt quality requirement is：Lvization Na≤96.3%, Liu Suan Gai≤0.3%, Lvization Mei≤
0.06%, Lvization Gai≤0.1%, Liu Suan Mei≤0.02%, Shui Fen≤3%.
Further, further include bating step：Tap water is flowed through into water softener, sofening treatment is carried out to tap water, is obtained
Softened water.
Further, further include temperature control step：Second weak brine is regulated and controled into trip temperature, by the temperature control of the second weak brine
It is made as 17-28 DEG C.
Further, regulated and controled into trip temperature by heater or the second weak brine of cooler pair.
Further, further include electrolysis step：The second weak brine after temperature control is passed through electrolytic cell, hydrogen is generated after electrolysis
And liquor natrii hypochloritis, hydrogen is discharged, liquor natrii hypochloritis is flowed into fluid reservoir, hypochlorite is obtained.
Further, in electrolysis step, air blower is used to be reduced to its volume fraction to be limited for 1% safety density of hydrogen
It is discharged under degree.
The beneficial effects of the present invention are：
Method is prepared in situ in the salinity control type hypochlorite of the present invention, which satisfies first in dissolved salt tank
Just water processed is mixed by flowmeter with second after brine and sofening treatment, is adjusted brine strength in 1.5%-2.5%, is passed through electricity
The liquor natrii hypochloritis's effective chlorine density generated after solution is 0.8%-1.0%, salt consumption in 2.3Kg/kg hereinafter, therefore, the system
Operating cost greatly reduces；Meanwhile to be 0.8%-1.0% can stablize and not decompose effective chlorine density, both reduced transport and thrown
Addition sheet in turn avoids the decomposition of liquor natrii hypochloritis.
Specific implementation mode
In the following, in conjunction with specific implementation mode, the present invention is described further, it should be noted that is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
Method, including just step processed is prepared in situ in a kind of salinity control type hypochlorite, and just step processed is specially：It will be soft
It is water processed at the beginning of water processed and second at the beginning of first to change moisture, wherein water processed enters in the dissolved salt tank equipped with refining industrial salt at the beginning of first, obtains
To the first saturated brine, second, just water processed and the first saturated brine carry out temperature control, second dilute salt after being mixed to get the second weak brine
The mass concentration of water is 1.5%-2.5%.
As the mode that further carries out, refining industrial salt quality requirement is：Lvization Na≤96.3%, Liu Suan Gai≤
0.3%, Lvization Mei≤0.06%, Lvization Gai≤0.1%, Liu Suan Mei≤0.02%, Shui Fen≤3%.
Further include bating step as mode is further carried out：Tap water is flowed through into water softener, tap water is carried out soft
Change is handled, and obtains softened water.
Further include temperature control step as mode is further carried out：Second weak brine is regulated and controled into trip temperature, it is dilute by second
The temperature control of brine is 17-28 DEG C.
As mode is further carried out, regulated and controled into trip temperature by heater or the second weak brine of cooler pair.
Further include electrolysis step as mode is further carried out：The second weak brine after temperature control is passed through electrolytic cell, electricity
Hydrogen and liquor natrii hypochloritis are generated after solution, hydrogen is discharged, and liquor natrii hypochloritis is flowed into fluid reservoir, hypochlorous acid is obtained
Salt.
As the mode that further carries out, in electrolysis step, density of hydrogen is reduced to by its volume fraction using air blower
To be discharged under 1% margin of safety.
It is specific embodiment of the present invention below, used raw material, equipment etc. remove special limit in the following embodiments
It can be obtained by buying pattern outside fixed.
Embodiment 1：
A kind of salinity control type hypochlorite is prepared in situ method, including：
Bating step：Tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water；
First step processed：Water processed at the beginning of water processed and second at the beginning of softened water is divided into first, wherein water processed enters equipped with smart at the beginning of first
In the dissolved salt tank of Nacl processed, the first saturated brine is obtained, water processed and the first saturated brine are mixed to get second dilute salt at the beginning of second
The mass concentration of water, the second weak brine is 1.5%；Refining industrial salt quality requirement is：Sodium chloride=96.3%, calcium sulfate=
0.3%, magnesium chloride=0.06%, calcium chloride=0.1%, magnesium sulfate=0.02%, moisture=3%；
Temperature control step：Regulated and controled into trip temperature by heater or the second weak brine of cooler pair, by the temperature of the second weak brine
Degree control is at 17 DEG C；
Electrolysis step：The second weak brine after temperature adjustment is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis are generated after electrolysis,
It uses air blower to be reduced to its volume fraction to be discharged under 1% margin of safety density of hydrogen, liquor natrii hypochloritis is flowed
Enter in fluid reservoir, obtains hypochlorite.
Embodiment 2：
A kind of salinity control type hypochlorite is prepared in situ method, including：
Bating step：Tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water；
First step processed：Water processed at the beginning of water processed and second at the beginning of softened water is divided into first, wherein water processed enters equipped with smart at the beginning of first
In the dissolved salt tank of Nacl processed, the first saturated brine is obtained, water processed and the first saturated brine are mixed to get second dilute salt at the beginning of second
The mass concentration of water, the second weak brine is 2.0%；Refining industrial salt quality requirement is：Sodium chloride=97.3%, calcium sulfate=
0.2%, magnesium chloride=0.04%, calcium chloride=0.07%, magnesium sulfate=0.01%, moisture=2.2%；
Temperature control step：Regulated and controled into trip temperature by heater or the second weak brine of cooler pair, by the temperature of the second weak brine
Degree control is at 22 DEG C；
Electrolysis step：The second weak brine after temperature adjustment is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis are generated after electrolysis,
It uses air blower to be reduced to its volume fraction to be discharged under 1% margin of safety density of hydrogen, liquor natrii hypochloritis is flowed
Enter in fluid reservoir, obtains hypochlorite.
Embodiment 3：
A kind of salinity control type hypochlorite is prepared in situ method, including：
Bating step：Tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water；
First step processed：Water processed at the beginning of water processed and second at the beginning of softened water is divided into first, wherein water processed enters equipped with smart at the beginning of first
In the dissolved salt tank of Nacl processed, the first saturated brine is obtained, water processed and the first saturated brine are mixed to get second dilute salt at the beginning of second
The mass concentration of water, the second weak brine is 2.2%；Refining industrial salt quality requirement is：Sodium chloride=98.3%, calcium sulfate=
0.1%, magnesium chloride=0.02%, calcium chloride=0.05%, magnesium sulfate=0.01%, moisture=1.5%；
Temperature control step：Regulated and controled into trip temperature by heater or the second weak brine of cooler pair, by the temperature of the second weak brine
Degree control is at 28 DEG C；
Electrolysis step：The second weak brine after temperature adjustment is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis are generated after electrolysis,
It uses air blower to be reduced to its volume fraction to be discharged under 1% margin of safety density of hydrogen, liquor natrii hypochloritis is flowed
Enter in fluid reservoir, obtains hypochlorite.
Comparative example 1：
A kind of preparation method of hypochlorite, including：
1, tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water；
2, water processed at the beginning of water processed and second at the beginning of softened water being divided into first, wherein water processed at the beginning of first, which enters, is equipped with highly industry
In the dissolved salt tank of salt, obtain the first saturated brine, second just water processed and the first saturated brine be mixed to get the second weak brine, second
The mass concentration of weak brine is 1.0%；
3, regulated and controled into trip temperature by heater or the second weak brine of cooler pair, the temperature control of the second weak brine is existed
28℃；
4, the second weak brine after temperature adjustment is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis is generated after electrolysis, using drum
Density of hydrogen is reduced under the margin of safety that its volume fraction is 1% and is discharged by wind turbine, and liquor natrii hypochloritis is flowed into liquid storage
In tank, hypochlorite is obtained.
Comparative example 2：
A kind of preparation method of hypochlorite, including：
1, tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water；
2, water processed at the beginning of water processed and second at the beginning of softened water being divided into first, wherein water processed at the beginning of first, which enters, is equipped with highly industry
In the dissolved salt tank of salt, obtain the first saturated brine, second just water processed and the first saturated brine be mixed to get the second weak brine, second
The mass concentration of weak brine is 3.5%；
3, regulated and controled into trip temperature by heater or the second weak brine of cooler pair, the temperature control of the second weak brine is existed
28℃；
4, the second weak brine after temperature adjustment is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis is generated after electrolysis, using drum
Density of hydrogen is reduced under the margin of safety that its volume fraction is 1% and is discharged by wind turbine, and liquor natrii hypochloritis is flowed into liquid storage
In tank, hypochlorite is obtained.
Effect assessment and performance detection
Indices in embodiment 1-3 and comparative example 1-2 are detected, the results are shown in Table 1.
1 testing result of table
By table 1 as it can be seen that power consumption and the salt consumption of the embodiment of the present invention 1-3 is below comparative example 1-2, and effective chlorine density
Higher than comparative example 1-2, what this illustrated the salinity control type hypochlorite of the present invention is prepared in situ method, and the preparation method is by dissolved salt
Just water processed is mixed second after the first saturated brine and sofening treatment in tank by flowmeter, adjusts brine strength in 1.5%-
2.5%, be 0.8%-1.0% by liquor natrii hypochloritis's effective chlorine density for being generated after electrolysis, salt consumption in 2.3Kg/kg hereinafter,
Therefore, which greatly reduces；Meanwhile to be 0.8%-1.0% can stablize and not decompose effective chlorine density, both drop
Low transport adds cost, in turn avoids the decomposition of liquor natrii hypochloritis.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (7)
1. method is prepared in situ in a kind of salinity control type hypochlorite, which is characterized in that including just step processed, first step tool processed
Body is：Water processed at the beginning of water processed and second at the beginning of softened water is divided into first, wherein water processed enters molten equipped with refining industrial salt at the beginning of first
In salt cellar, the first saturated brine is obtained, water processed and the first saturated brine carry out temperature control after being mixed to get the second weak brine at the beginning of second,
The mass concentration of second weak brine is 1.5%-2.5%.
2. method is prepared in situ in salinity control type hypochlorite as described in claim 1, which is characterized in that refining industrial salt
Quality requirement is：Lvization Na≤96.3%, Liu Suan Gai≤0.3%, Lvization Mei≤0.06%, Lvization Gai≤0.1%, Liu Suan Mei≤
0.02%, Shui Fen≤3%.
3. method is prepared in situ in salinity control type hypochlorite as claimed in claim 1 or 2, which is characterized in that further include
Bating step：Tap water is flowed through into water softener, sofening treatment is carried out to tap water, obtains softened water.
4. method is prepared in situ in salinity control type hypochlorite as claimed in claim 3, which is characterized in that further include temperature control
Step：Second weak brine is regulated and controled into trip temperature, is 17-28 DEG C by the temperature control of the second weak brine.
5. method is prepared in situ in salinity control type hypochlorite as claimed in claim 4, which is characterized in that pass through heater
Or the second weak brine of cooler pair regulates and controls into trip temperature.
6. method is prepared in situ in salinity control type hypochlorite as claimed in claim 4, which is characterized in that further include electrolysis
Step：The second weak brine after temperature control is passed through electrolytic cell, hydrogen and liquor natrii hypochloritis are generated after electrolysis, hydrogen is discharged,
Liquor natrii hypochloritis is flowed into fluid reservoir, hypochlorite is obtained.
7. method is prepared in situ in salinity control type hypochlorite as claimed in claim 6, which is characterized in that electrolysis step
In, use air blower that density of hydrogen is reduced to its volume fraction to be discharged under 1% margin of safety.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810201037.9A CN108505060A (en) | 2018-03-12 | 2018-03-12 | Method is prepared in situ in a kind of salinity control type hypochlorite |
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| CN201810201037.9A CN108505060A (en) | 2018-03-12 | 2018-03-12 | Method is prepared in situ in a kind of salinity control type hypochlorite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110129820A (en) * | 2019-06-25 | 2019-08-16 | 山东瑞克环境科技有限公司 | Calcium hypochlorite, calcium chlorate, Calcium perchlorate preparation facilities and method |
| CN111676486A (en) * | 2020-06-04 | 2020-09-18 | 山东山大华特科技股份有限公司 | Sodium hypochlorite production process and device for electrolyzing low-concentration brine by using membrane-free method |
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| CA2824225A1 (en) * | 2010-12-09 | 2012-06-14 | John Kuiphoff | Compact closed-loop electrolyzing process and apparatus |
| CN205710043U (en) * | 2016-04-05 | 2016-11-23 | 代纯伟 | The decontaminating apparatus of electrolytic sodium chloride |
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2018
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| CA2824225A1 (en) * | 2010-12-09 | 2012-06-14 | John Kuiphoff | Compact closed-loop electrolyzing process and apparatus |
| CN205710043U (en) * | 2016-04-05 | 2016-11-23 | 代纯伟 | The decontaminating apparatus of electrolytic sodium chloride |
| CN206015103U (en) * | 2016-08-29 | 2017-03-15 | 潍坊和创环保设备有限公司 | High-power equipment for producing sodium hypochlorite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129820A (en) * | 2019-06-25 | 2019-08-16 | 山东瑞克环境科技有限公司 | Calcium hypochlorite, calcium chlorate, Calcium perchlorate preparation facilities and method |
| CN111676486A (en) * | 2020-06-04 | 2020-09-18 | 山东山大华特科技股份有限公司 | Sodium hypochlorite production process and device for electrolyzing low-concentration brine by using membrane-free method |
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Application publication date: 20180907 |