CN206051577U - A kind of ammonium acid fluoride Moist chemical synthesis system - Google Patents
A kind of ammonium acid fluoride Moist chemical synthesis system Download PDFInfo
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- CN206051577U CN206051577U CN201621004838.9U CN201621004838U CN206051577U CN 206051577 U CN206051577 U CN 206051577U CN 201621004838 U CN201621004838 U CN 201621004838U CN 206051577 U CN206051577 U CN 206051577U
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- acid fluoride
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Abstract
This utility model belongs to chemical field, specifically related to a kind of ammonium acid fluoride Moist chemical synthesis system, the system includes synthetic tower, cooler and the air cooling tower being vertically arranged, the bottom of synthetic tower is provided with the outlet of liquefied ammonia import, Fluohydric acid. import and Synthesis liquid, the spray import of circulation Synthesis liquid and hot-blast outlet are provided with the top of synthetic tower, using circulating cooling cooling measure come controlling reaction temperature in building-up process.Synthetic Synthesis liquid Jing conveying is pumped to air cooling tower.Electronic flowmeter is respectively equipped with liquefied ammonia import, Fluohydric acid. import and circulating line, synthesis tower bottom lower part is provided with electronics acidometer, electronic thermometer is respectively equipped with hot-blast outlet at the top of the top part of synthesis tower bottom and synthetic tower, electronic flowmeter, electronics acidometer and electronic thermometer are connected with controller signals.The system has the beneficial effect that production efficiency is high, the product with stable quality of the ammonium acid fluoride for obtaining.
Description
Technical field
This utility model belongs to chemical field, and in particular to a kind of ammonium acid fluoride Moist chemical synthesis system.
Background technology
Ammonium acid fluoride (ammonium bifluoride) molecular formula NH4HF2, molecular weight 57.04, relative density 1.52 melt
125.6 DEG C of point, 239.5 DEG C of boiling point is white or water white transparency rhomboidal crystal, and poisonous, easily deliquescence easily lumps in atmosphere, readily soluble
Yu Shui, aqueous solution are in highly acid, have the tart flavour of fluohydric acid gas.Alcohol is slightly soluble in, is decomposed in the hot water, distilled under high temperature, glass can be corroded
Glass, is corrosive to skin.
Ammonium acid fluoride is mainly used as glass etching agent, preservative, the solvent of beryllium oxide metallic beryllium, chemical reagent, boiler
The abluent of water supply system and steam generating system, fermentation industry disinfectant and silicon element surface of steel plate inorganic agent, manufacture ceramics and
The oxidant of almag, organic synthesiss fluorization agent, electroplate liquid, the solvent for extracting rare element, the acidification of oil field sandstone
Agent etc., and silicon element steel plate surface conditioning agent and aluminium shape surface process when caustic.
Existing ammonium acid fluoride production method includes vapor phase method synthesis and Moist chemical synthesis, and current Moist chemical synthesis system is mostly
The old equipment of comparison is remained, using manual detection and control, which has low production efficiency, product quality unstable etc. no
Foot.
Utility model content
For deficiency of the prior art, this utility model provides a kind of ammonium acid fluoride Moist chemical synthesis system, and the wet method is closed
The Moist chemical synthesis of ammonium acid fluoride are controlled using computer numerical controlled technology into system, are conducive to improve production efficiency and stable product
Product quality.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of ammonium acid fluoride Moist chemical synthesis system, its
Including the synthetic tower, cooler and air cooling tower that are vertically arranged, the bottom of the synthetic tower is provided with liquefied ammonia import, Fluohydric acid. import
And mixture export, mixed liquor import and hot-blast outlet are provided with the top of the synthetic tower, the cooler passes through circulating line
It is connected between the mixed liquor import and mixture export, the circulating line between the mixture export and the cooler
Circulating pump is provided with, the mixture export is also connected with the upper feed inlet of the air cooling tower by feed pump, described air-cooled
Hot-blast outlet is provided with the top of tower, the bottom of the air cooling tower is provided with discharging opening, the liquefied ammonia import, Fluohydric acid. import and circulation
Electronic flowmeter is respectively equipped with pipeline, electronics acidometer, the synthesis tower bottom and top at the mixture export, is provided with
Electronic thermometer is respectively equipped with, the electronic flowmeter, electronics acidometer and electronic thermometer are connected with controller signals.
On the basis of above-mentioned technical proposal, this utility model can also do following improvement.
Further, the hot-blast outlet at the top of the synthetic tower and air cooling tower with sirocco reclamation pipeline communication.
Further, the liquefied ammonia import, Fluohydric acid. import and circulating line are respectively arranged with electromagnetic valve, the electromagnetic valve with
The controller signals connection.
The beneficial effects of the utility model are：In synthetic tower, a certain amount of mother solution is added (for the first time may be used in advance before synthesis
Plus appropriate high purity water), building-up process starts front opening purifying column air-introduced machine (exhaust-gas treatment), opens chilling spray circulating pump.
During synthesis, a small amount of Fluohydric acid. is first passed through, hydrofluoric acid dissolution is in mother solution, then is lentamente passed through liquefied ammonia.Liquid ammonia gasification, with mixed
Close liquid spray-absorption.It is passed through speed to control temperature in synthetic tower by cooler inlet valve aperture and Fluohydric acid., liquefied ammonia.So
Metering liquefied ammonia and anhydrous hydrogen fluoride are passed through by proportioning afterwards, then Synthesis liquid pH value are adjusted by being passed through fluohydric acid gas on a small quantity.Synthetic
Synthesis liquid Jing delivery pump is sent to air cooling tower.Using circulated sprinkling, air-cooled lowering the temperature, the feed liquid in air cooling tower contains on a small quantity air cooling tower
After ammonium acid fluoride crystallization, can subsequently be delivered to thickener and further crystallize, additionally, synthetic tower is additionally provided with barometric pipe (hot blast
Outlet).Electronic flowmeter, electronics acidometer and electronic thermometer are provided with the system and which are connected with controller signals,
Workman can be made to be apparent from the real time status in production system；After the corresponding electromagnetic valve connected to controller is set,
Controller can be automatically controlled to production system according to setting value.
Description of the drawings
A kind of schematic diagram of ammonium acid fluoride Moist chemical synthesis system that Fig. 1 is provided for this utility model；
In accompanying drawing, the list of parts representated by each label is as follows：
1. synthetic tower；2. cooler；3. air cooling tower；4. liquefied ammonia import；5. Fluohydric acid. import；6. circulating line；7. hot blast
Recovery channel；8. circulating pump；9. feed pump.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figure 1, a kind of ammonium acid fluoride Moist chemical synthesis system, which includes synthetic tower 1,2 and of cooler being vertically arranged
Air cooling tower 3, the bottom of the synthetic tower 1 are provided with liquefied ammonia import 4, Fluohydric acid. import 5 and mixture export, the synthetic tower 1
Top is provided with mixed liquor import and hot-blast outlet, and the cooler 2 is connected to the mixed liquor import by circulating line 6 and mixes
Close between liquid outlet, the circulating line 6 between the mixture export and the cooler 2 is provided with circulating pump 8, the mixing
Liquid outlet is also connected with the upper feed inlet of the air cooling tower 3 by feed pump 9, and the top of the air cooling tower 3 is provided with hot blast and goes out
Mouthful, the bottom of the air cooling tower 3 is provided with discharging opening, is respectively equipped with the liquefied ammonia import 4, Fluohydric acid. import 5 and circulating line 6
Electronic flowmeter, is provided with electronics acidometer at the mixture export, 1 bottom of the synthetic tower and top are respectively equipped with electronics temperature
Degree meter, the electronic flowmeter, electronics acidometer and electronic thermometer are connected with controller signals.Wherein, controller includes
Microprocessor, display screen and control knob that signal connects.The controller can be according to corresponding electronic flowmeter, electronics acid
Degree meter and electronic thermometer are monitored and are controlled to the temperature and pH that synthesize mixed liquor in tower body.
Further, the hot-blast outlet at the top of the synthetic tower 1 and air cooling tower 3 is connected with sirocco reclamation pipeline 7.
Further, 4 liquefied ammonia import 4 of the liquefied ammonia import, Fluohydric acid. import 5 and circulating line 6 are respectively arranged with electromagnetic valve,
The electromagnetic valve is connected with the controller signals.Controller controls the opening and closing of corresponding electromagnetic valve to reach control synthetic tower
The purpose of interior pH of mixed and temperature.
A certain amount of mother solution (appropriate high purity water can be added for the first time), building-up process are added in synthetic tower in advance before synthesis
Start front opening purifying column air-introduced machine (exhaust-gas treatment), open chilling spray circulating pump.During synthesis, a small amount of hydrogen fluorine is first passed through
Acid, hydrofluoric acid dissolution is in mother solution, then is lentamente passed through liquefied ammonia.Liquid ammonia gasification, with mixed liquor spray-absorption.By cooler
Inlet valve aperture is passed through speed to control temperature in synthetic tower with Fluohydric acid., liquefied ammonia.Then by proportioning be passed through metering liquefied ammonia with
Anhydrous hydrogen fluoride, then Synthesis liquid pH value is adjusted by being passed through fluohydric acid gas on a small quantity.Synthetic Synthesis liquid Jing delivery pump is sent to air-cooled
Tower.Air cooling tower, subsequently may be used after the feed liquid in air cooling tower contains a small amount of ammonium acid fluoride crystallization using circulated sprinkling, air-cooled lowering the temperature
It is delivered to thickener further to crystallize.
Wherein, liquefied ammonia and Fluohydric acid. are with mol ratio 1:2 ratio enters synthetic tower, adds Fluohydric acid. to adjust synthesis night pH and exists
1.0-4.0, in 5.0～21.0 Baume degrees, at 65-95 DEG C, Fluohydric acid. is as follows with liquefied ammonia dominant response for temperature control for proportion：
NH3+H2O=NH4OH；
NH3OH+HF=NH4F+H2O；
NH4F+HF=NH4HF2；
2HF+NH3=NH4HF2.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of ammonium acid fluoride Moist chemical synthesis system, it is characterised in that including the synthetic tower (1), cooler (2) being vertically arranged and
Air cooling tower (3), the bottom of the synthetic tower (1) are provided with liquefied ammonia import (4), Fluohydric acid. import (5) and mixture export, the conjunction
Mixed liquor import and hot-blast outlet are provided with the top of tower (1), the cooler (2) is connected to described by circulating line (6)
Between mixed liquor import and mixture export, set on the circulating line (6) between the mixture export and the cooler (2)
There is circulating pump (8), the mixture export is also connected with the upper feed inlet of the air cooling tower (3) by feed pump (9), described
Hot-blast outlet is provided with the top of air cooling tower (3), the bottom of the air cooling tower (3) is provided with discharging opening, the liquefied ammonia import (4), hydrogen
Electronic flowmeter is respectively equipped with fluoric acid import (5) and circulating line (6), electronics acidometer at the mixture export, is provided with,
Synthetic tower (1) bottom and top are respectively equipped with electronic thermometer, the electronic flowmeter, electronics acidometer and electron temperature
Meter is connected with controller signals.
2. a kind of ammonium acid fluoride Moist chemical synthesis system according to claim 1, it is characterised in that the synthetic tower (1) and
Hot-blast outlet at the top of air cooling tower (3) is connected with sirocco reclamation pipeline (7).
3. a kind of ammonium acid fluoride Moist chemical synthesis system according to claim 1 and 2, it is characterised in that the liquefied ammonia import
(4), Fluohydric acid. import (5) and circulating line (6) are respectively arranged with electromagnetic valve, and the electromagnetic valve is connected with the controller signals
Connect.
4. a kind of ammonium acid fluoride Moist chemical synthesis system according to claim 1 and 2, it is characterised in that the controller bag
Include microprocessor, display screen and the control knob of signal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004838.9U CN206051577U (en) | 2016-08-31 | 2016-08-31 | A kind of ammonium acid fluoride Moist chemical synthesis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004838.9U CN206051577U (en) | 2016-08-31 | 2016-08-31 | A kind of ammonium acid fluoride Moist chemical synthesis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051577U true CN206051577U (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621004838.9U Active CN206051577U (en) | 2016-08-31 | 2016-08-31 | A kind of ammonium acid fluoride Moist chemical synthesis system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206051577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919495A (en) * | 2021-03-18 | 2021-06-08 | 福建省建阳金石氟业有限公司 | Production process of high-purity ammonium bifluoride |
-
2016
- 2016-08-31 CN CN201621004838.9U patent/CN206051577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919495A (en) * | 2021-03-18 | 2021-06-08 | 福建省建阳金石氟业有限公司 | Production process of high-purity ammonium bifluoride |
| CN112919495B (en) * | 2021-03-18 | 2022-08-09 | 福建省建阳金石氟业有限公司 | Production process of high-purity ammonium bifluoride |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 067500 dongsanjia village, Pingquan Town, Pingquan City, Chengde City, Hebei Province Patentee after: Chengde Yingke Fine Chemical Co.,Ltd. Address before: 067500 dongsanjia village, Pingquan Town, Pingquan County, Chengde City, Hebei Province Patentee before: CHENGDE YINGKE FINE CHEMICAL CO.,LTD. |
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