CN106745065A - A kind of preparation method of ammonium sulfate - Google Patents
A kind of preparation method of ammonium sulfate Download PDFInfo
- Publication number
- CN106745065A CN106745065A CN201510830845.8A CN201510830845A CN106745065A CN 106745065 A CN106745065 A CN 106745065A CN 201510830845 A CN201510830845 A CN 201510830845A CN 106745065 A CN106745065 A CN 106745065A
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- CN
- China
- Prior art keywords
- ammonium sulfate
- crystallizer
- ammonia
- sulfuric acid
- magma
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/242—Preparation from ammonia and sulfuric acid or sulfur trioxide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of preparation method of ammonium sulfate, comprise the following steps：A, to ammonia and sulfuric acid is passed through in crystallizer, ammonia carries out condensation cooling reaction and obtains ammoniacal liquor, and ammoniacal liquor generates ammonium sulfate liquor with sulfuric acid reaction；B, the hydrogen peroxide to addition mass fraction 27% in crystallizer, by hydrogen peroxide and ammonium sulfate liquor mixing 0.5-1h；C, the pressure of crystallizer is controlled in 9.3KPa~9.7KPa, ammonium sulfate liquor carries out crystallization reaction in crystallizer and obtains ammonium sulfate magma, when the percentage by volume of the ammonia sulfate crystal in ammonium sulfate magma reaches 25%~30%, ammonium sulfate magma is discharged from crystallizer, the ammonium sulfate magma for obtaining is through vibration drying bed, uninterruptedly dried using hot blast is fluidized, obtain finished product sulfuric acid ammonium.Handling process of the present invention makes full use of the existing equipment of factory, using existing equipments such as existing ammonium sulfate workshop section saturator deaminations, is capable of achieving the low ammonium sulfate product of low energy consumption ground production bulky grain, acidity, greatly reduces investment of production.
Description
Technical field
The present invention relates to a kind of preparation method of ammonium sulfate.
Background technology
Ammonium sulfate is a kind of excellent nitrogenous fertilizer, it is adaptable to general soil and crop, and shoot and leaf growth can be made vigorous, improves fruit
Quality and yield, enhancing crop can make base manure, topdress and seed manure to the resistivity of disaster.Ammonium sulfate can be answered with salt
Decomposition reaction manufactures ammonium chloride, with aluminum sulfate effect generation ammonia-alum, refractory material is manufactured together with boric acid etc..Ammonium sulfate is added
Electric conductivity can be increased in electroplate liquid.Additionally, brewing is additionally operable to, chemical reagent and storage battery production etc..It also has one important
Effect is exactly to exploit rare earth, and exploitation makees raw material with ammonium sulfate, and the rare earth exchanged in ore deposit soil is gone out using ion exchange form
Come, regather after leachate simple filtration is separated and dry into rare-earth original ore, 1 ton of rare-earth original ore of often exploitation production about needs 5 tons of sulfuric acid
Ammonium.Ammonium sulfate is also the catalyst of food dark reddish brown, the nitrogen source of culture yeasts bacterium in yeast cake production, as dough conditioner, ferment
Female nutriment.As saccharomycete culture nitrogen source in yeast cake production, but the ammonium sulfate purity of production now is not high, as food additive
Plus agent is restricted.
The content of the invention
The invention aims to solve the problems, such as to be previously mentioned in above-mentioned background technology, there is provided a kind of system of ammonium sulfate
Preparation Method.
To achieve these goals, technical scheme is as follows：
A kind of preparation method of ammonium sulfate, comprises the following steps：
A, using the ammonia entrance and sulfuric acid entrance being arranged on crystallizer, to ammonia and sulfuric acid is passed through in crystallizer, ammonia enters
Row condensation cooling reaction obtains ammoniacal liquor, and ammoniacal liquor generates ammonium sulfate liquor with sulfuric acid reaction；
B, the hydrogen peroxide to addition mass fraction 27% in crystallizer, by the ammonium sulfate liquor in hydrogen peroxide and ammonium sulfate step a
Mixing 0.5-1h；；
C, the pressure of crystallizer is controlled in 9.3KPa~9.7KPa, ammonium sulfate liquor carries out crystallization reaction in crystallizer and obtains
Ammonium sulfate magma, when the percentage by volume of the ammonia sulfate crystal in ammonium sulfate magma reaches 25%~30%, by ammonium sulfate magma
From crystallizer discharge, the ammonium sulfate magma for obtaining uninterruptedly is dried through vibration drying bed using hot blast is fluidized, and obtains finished product sulfuric acid
Ammonium.
Further, fluidisation heated-air drying is temperature 100~130 DEG C, drying time 15-25 seconds.
Further, it is 600~800m to the ammonia flow being passed through in crystallizer3/ h, vitriolic acid flux is 1.5~2t/h,
The mass percent of the ammonia being passed through is 18~25wt%, and the mass percent of sulfuric acid is 98%.
Further, it is provided with agitator in the crystallizer.
Further, the crystalliser feet is additionally provided with discharging opening, and the discharging opening is provided with conveying worm.
Handling process of the present invention makes full use of the existing equipment of factory, existing using existing ammonium sulfate workshop section saturator deamination etc.
There is equipment, be capable of achieving the low ammonium sulfate product of low energy consumption ground production bulky grain, acidity, greatly reduce investment of production.
Specific embodiment
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1
A kind of preparation method of ammonium sulfate, comprises the following steps：
A, using the ammonia entrance and sulfuric acid entrance being arranged on crystallizer, to ammonia and sulfuric acid is passed through in crystallizer, ammonia enters
Row condensation cooling reaction obtains ammoniacal liquor, and ammoniacal liquor generates ammonium sulfate liquor with sulfuric acid reaction；
B, the hydrogen peroxide to addition mass fraction 27% in crystallizer, by the ammonium sulfate liquor in hydrogen peroxide and ammonium sulfate step a
Mixing 0.5h；；
C, the pressure of crystallizer is controlled in 9.3KPa, ammonium sulfate liquor carries out crystallization reaction in crystallizer, and to obtain ammonium sulfate brilliant
Slurry, when the percentage by volume of the ammonia sulfate crystal in ammonium sulfate magma reaches 25%, ammonium sulfate magma is discharged from crystallizer,
The ammonium sulfate magma for obtaining uninterruptedly is dried through vibration drying bed using hot blast is fluidized, and obtains finished product sulfuric acid ammonium.
Fluidisation heated-air drying is 100 DEG C of temperature, 25 seconds drying times.
It is 600m to the ammonia flow being passed through in crystallizer3/ h, vitriolic acid flux is 1.5t/h, the quality hundred of the ammonia being passed through
Fraction is 18wt%, and the mass percent of sulfuric acid is 98%.
Agitator is provided with crystallizer.
Crystalliser feet is additionally provided with discharging opening, and the discharging opening is provided with conveying worm.
Embodiment 2
A kind of preparation method of ammonium sulfate, comprises the following steps：
A, using the ammonia entrance and sulfuric acid entrance being arranged on crystallizer, to ammonia and sulfuric acid is passed through in crystallizer, ammonia enters
Row condensation cooling reaction is obtained, and ammoniacal liquor, ammoniacal liquor generates ammonium sulfate liquor with sulfuric acid reaction；
B, the hydrogen peroxide to addition mass fraction 27% in crystallizer, by the ammonium sulfate liquor in hydrogen peroxide and ammonium sulfate step a
Mixing 0.5-1h；；
C, the pressure of crystallizer is controlled in 9.7KPa, ammonium sulfate liquor carries out crystallization reaction in crystallizer, and to obtain ammonium sulfate brilliant
Slurry, when the percentage by volume of the ammonia sulfate crystal in ammonium sulfate magma reaches 30%, ammonium sulfate magma is discharged from crystallizer,
The ammonium sulfate magma for obtaining uninterruptedly is dried through vibration drying bed using hot blast is fluidized, and obtains finished product sulfuric acid ammonium.
Fluidisation heated-air drying is 1130 DEG C of temperature, 15 seconds drying times.
Further, it is 800m to the ammonia flow being passed through in crystallizer3/ h, vitriolic acid flux is 2t/h, the ammonia being passed through
Mass percent be 25wt%, the mass percent of sulfuric acid is 98%.
Agitator is provided with crystallizer.
Crystalliser feet is additionally provided with discharging opening, and the discharging opening is provided with conveying worm.
Claims (5)
1. a kind of preparation method of ammonium sulfate, it is characterised in that comprise the following steps：
A, using the ammonia entrance and sulfuric acid entrance being arranged on crystallizer, to ammonia and sulfuric acid is passed through in crystallizer, ammonia enters
Row condensation cooling reaction obtains ammoniacal liquor, and ammoniacal liquor generates ammonium sulfate liquor with sulfuric acid reaction；
B, the hydrogen peroxide to addition mass fraction 27% in crystallizer, by the ammonium sulfate liquor in hydrogen peroxide and ammonium sulfate step a
Mixing 0.5-1h；；
C, the pressure of crystallizer is controlled in 9.3KPa~9.7KPa, ammonium sulfate liquor carries out crystallization reaction in crystallizer and obtains
Ammonium sulfate magma, when the percentage by volume of the ammonia sulfate crystal in ammonium sulfate magma reaches 25%~30%, by ammonium sulfate magma
From crystallizer discharge, the ammonium sulfate magma for obtaining uninterruptedly is dried through vibration drying bed using hot blast is fluidized, and obtains finished product sulfuric acid
Ammonium.
2. the preparation method of ammonium sulfate according to claim 1, it is characterised in that fluidisation heated-air drying be temperature 100~
130 DEG C, drying time 15-25 seconds.
3. the preparation method of ammonium sulfate according to claim 1, it is characterised in that to the ammonia flow being passed through in crystallizer
It is 600~800m3/ h, vitriolic acid flux is 1.5~2t/h, and the mass percent of the ammonia being passed through is 18~25wt%, the matter of sulfuric acid
Amount percentage is 98%.
4. the preparation method of ammonium sulfate according to claim 1, it is characterised in that stirring is provided with the crystallizer
Device.
5. the preparation method of ammonium sulfate according to claim 1, it is characterised in that the crystalliser feet is additionally provided with out
Material mouth, the discharging opening is provided with conveying worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830845.8A CN106745065A (en) | 2015-11-25 | 2015-11-25 | A kind of preparation method of ammonium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510830845.8A CN106745065A (en) | 2015-11-25 | 2015-11-25 | A kind of preparation method of ammonium sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106745065A true CN106745065A (en) | 2017-05-31 |
Family
ID=58964113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510830845.8A Pending CN106745065A (en) | 2015-11-25 | 2015-11-25 | A kind of preparation method of ammonium sulfate |
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| CN (1) | CN106745065A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592012A (en) * | 2020-05-18 | 2020-08-28 | 太仓市新星轻工助剂厂 | Preparation method of high-purity ammonium sulfate for water treatment flocculation initiator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897795A (en) * | 2012-11-12 | 2013-01-30 | 中国石油化工股份有限公司 | Production method of large granular ammonium sulfate crystal |
| CN104118889A (en) * | 2014-08-11 | 2014-10-29 | 衡阳市华虎化工有限公司 | Preparation method of food-grade ammonium sulfate |
| CN104773742A (en) * | 2015-03-26 | 2015-07-15 | 潍坊特钢集团有限公司 | Crude ammonium sulfate refining method |
-
2015
- 2015-11-25 CN CN201510830845.8A patent/CN106745065A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897795A (en) * | 2012-11-12 | 2013-01-30 | 中国石油化工股份有限公司 | Production method of large granular ammonium sulfate crystal |
| CN104118889A (en) * | 2014-08-11 | 2014-10-29 | 衡阳市华虎化工有限公司 | Preparation method of food-grade ammonium sulfate |
| CN104773742A (en) * | 2015-03-26 | 2015-07-15 | 潍坊特钢集团有限公司 | Crude ammonium sulfate refining method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592012A (en) * | 2020-05-18 | 2020-08-28 | 太仓市新星轻工助剂厂 | Preparation method of high-purity ammonium sulfate for water treatment flocculation initiator |
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Application publication date: 20170531 |