CN106145160A - A kind of ammonium acid fluoride production method - Google Patents
A kind of ammonium acid fluoride production method Download PDFInfo
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- CN106145160A CN106145160A CN201510159229.4A CN201510159229A CN106145160A CN 106145160 A CN106145160 A CN 106145160A CN 201510159229 A CN201510159229 A CN 201510159229A CN 106145160 A CN106145160 A CN 106145160A
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- Prior art keywords
- acid fluoride
- ammonium acid
- centrifuge
- mother solution
- production method
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Abstract
The invention discloses a kind of ammonium acid fluoride production method, relate to compound producing method technical field, comprise the steps: S1, ammonium acid fluoride material be delivered to spray column top, under being sprayed by nebulizer；S2, cooling air are fully contacted with ammonium acid fluoride material, and cooling makes ammonium acid fluoride crystal separate out；Material after S3, cooling enters collecting tank；S4, from collecting tank collect material dried by centrifuge；S5, the material dried by centrifuge is analyzed, analyzes qualified rear packed products；S6, by centrifuge isolated ammonium acid fluoride Recycling Mother Solution use.Ammonium acid fluoride production method disclosed in this invention, ammonium acid fluoride is formed without crystalline solid before pressurized spray, ammonium acid fluoride crystal will not adhere to formation knot wall on spray column inwall, before pressurized spray, ammonium acid fluoride mother solution will not adhere to formation knot wall by pump, pipeline on inner-walls of duct when carrying, pump or pipeline are unimpeded, in ammonium acid fluoride mother solution, crystalline solid fully separates out, and the mother solution of releasing will not produce secondary crystallization again.
Description
Technical field
The present invention relates to compound producing method technical field, particularly relate to a kind of ammonium acid fluoride production method.
Background technology
Ammonium acid fluoride is that one has corrosive chemical substance, and wet, water decomposition are poisonous fluoride, nitrogen oxygen
Compound and ammonia gas, ammonium acid fluoride is easily formed crystalline solid, and easily on container inner wall, attachment forms knot wall, hinders
Pump or pipeline unimpeded, in ammonium acid fluoride mother solution, crystalline solid fully separates out, and the mother solution of releasing is easily generated secondary crystallization,
Being highly soluble in cold water, and be very easy to deliquescence, therefore a kind of ammonium acid fluoride of design is formed without before pressurized spray
Crystalline solid, ammonium acid fluoride crystal will not adhere to formation knot wall, ammonium acid fluoride before pressurized spray on spray column inwall
Will not adhere to formation knot wall on inner-walls of duct when mother solution is by pump, pipeline conveying, pump or pipeline are unimpeded, fluorination
In hydrogen ammonium mother solution, crystalline solid fully separates out, and the mother solution of releasing will not produce the ammonium acid fluoride producer of secondary crystallization again
Method is highly desirable to.
Summary of the invention
The purpose of the present invention is contemplated to overcome prior art when preparing ammonium acid fluoride, and wet, water decomposition are poisonous
Fluoride, nitrogen oxides and ammonia gas, ammonium acid fluoride adheres to formation knot wall, the mother solution of releasing on container inner wall
Being easily generated the defect of secondary crystallization, devise a kind of ammonium acid fluoride production method, ammonium acid fluoride is before pressurized spray
Being formed without crystalline solid, will not adhere to formation knot wall on spray column inwall, ammonium acid fluoride mother solution will not be at pump, pipe
On road inwall, attachment forms knot wall, and the mother solution of releasing will not produce secondary crystallization again.
Solve the technical problem that required by the present invention and can be achieved through the following technical solutions:
A kind of ammonium acid fluoride production method, comprises the steps:
S1, by heat ammonium acid fluoride material transport pump to spray column top, by the nebulizer within spray column
Under spray；
S2, cooling air enter bottom spray column, are fully contacted with ammonium acid fluoride material, fall in spray column
Temperature makes ammonium acid fluoride crystal separate out；
Material after S3, cooling enters collecting tank；
S4, the material entrance centrifuge collected from collecting tank, dried by centrifuge；
S5, the material dried by centrifuge is analyzed, analyzes qualified rear packed products；
S6, come back to ammonium acid fluoride reactor by centrifuge isolated ammonium acid fluoride mother solution, recycle.
The ammonium acid fluoride temperature of charge of described heat is in the range of 70～80 DEG C.
Described crystallization blowing temperature is 40-45 DEG C.
Owing to have employed above technical scheme, present invention have the advantage that
Ammonium acid fluoride production method disclosed in this invention, can ensure that ammonium acid fluoride not shape before pressurized spray
Become crystalline solid, prevent ammonium acid fluoride crystal from adhering to formation knot wall on spray column inwall, prevent fluorine before pressurized spray
Form crystalline solid when change hydrogen ammonium mother solution is by pump, pipeline conveying and on inner-walls of duct, adhere to formation knot wall, thus
Preventing pump or line clogging, suitably crystallization blowing temperature can ensure that in ammonium acid fluoride mother solution, crystalline solid is fully analysed
Go out, prevent the mother solution released from no longer producing secondary crystallization.
Accompanying drawing explanation
Fig. 1 is ammonium acid fluoride production technological process of the present invention；
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect,
Below in conjunction with being specifically illustrating, the present invention is expanded on further.
A kind of ammonium acid fluoride production method, comprises the steps:
S1, by temperature 70～80 DEG C heat ammonium acid fluoride material transport pump to spray column top, by spray
Drenching under the nebulizer spray within tower, ammonium acid fluoride mother liquor temperature is 70～80 DEG C, it is possible to ensure ammonium acid fluoride
Before pressurized spray, it is formed without crystalline solid, prevents ammonium acid fluoride crystal from adhering to formation knot wall on spray column inwall,
Crystalline solid attached on inner-walls of duct is formed when preventing before pressurized spray ammonium acid fluoride mother solution by pump, pipeline conveying
Formation knot wall, thus prevent pump or line clogging；
S2, cooling air enter bottom spray column, are fully contacted with ammonium acid fluoride material, fall in spray column
Temperature makes ammonium acid fluoride crystal separate out, and crystallization blowing temperature is 40-45 DEG C, it is ensured that tie in ammonium acid fluoride mother solution
Crystal fully separates out, and prevents the mother solution released from no longer producing secondary crystallization；
Material after S3, cooling enters collecting tank；
S4, the material entrance centrifuge collected from collecting tank, dried by centrifuge；
S5, the material dried by centrifuge is analyzed, analyzes qualified rear packed products；
S6, come back to ammonium acid fluoride reactor by centrifuge isolated ammonium acid fluoride mother solution, recycle.
Ammonium acid fluoride production method disclosed in this invention, it is possible to ensure that ammonium acid fluoride is formed without before pressurized spray
Crystalline solid, prevents ammonium acid fluoride crystal from adhering to formation knot wall on spray column inwall, is fluorinated before preventing pressurized spray
Form crystalline solid when hydrogen ammonium mother solution is by pump, pipeline conveying and on inner-walls of duct, adhere to formation knot wall, thus anti-
Only pump or line clogging, suitably crystallization blowing temperature can ensure that in ammonium acid fluoride mother solution, crystalline solid is fully analysed
Go out, prevent the mother solution released from no longer producing secondary crystallization.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The industry
Skilled person will appreciate that, the present invention is not restricted to the described embodiments, described in above-described embodiment and description
The principle that the present invention is simply described, the present invention also has respectively without departing from the spirit and scope of the present invention
Planting changes and improvements, these changes and improvements both fall within scope of the claimed invention.Application claims is protected
Scope of protecting is defined by appending claims and equivalent thereof.
Claims (3)
1. an ammonium acid fluoride production method, it is characterised in that comprise the steps:
S1, by heat ammonium acid fluoride material transport pump to spray column top, by the nebulizer within spray column
Under spray；
S2, cooling air enter bottom spray column, are fully contacted with ammonium acid fluoride material, fall in spray column
Temperature makes ammonium acid fluoride crystal separate out；
Material after S3, cooling enters collecting tank；
S4, the material entrance centrifuge collected from collecting tank, dried by centrifuge；
S5, the material dried by centrifuge is analyzed, analyzes qualified rear packed products；
S6, come back to ammonium acid fluoride reactor by centrifuge isolated ammonium acid fluoride mother solution, recycle.
A kind of ammonium acid fluoride production method, it is characterised in that: the fluorination of described heat
Hydrogen ammonium temperature of charge is in the range of 70～80 DEG C.
A kind of ammonium acid fluoride production method, it is characterised in that: described crystallization blowing
Temperature is 40-45 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159229.4A CN106145160A (en) | 2015-04-03 | 2015-04-03 | A kind of ammonium acid fluoride production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510159229.4A CN106145160A (en) | 2015-04-03 | 2015-04-03 | A kind of ammonium acid fluoride production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106145160A true CN106145160A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510159229.4A Pending CN106145160A (en) | 2015-04-03 | 2015-04-03 | A kind of ammonium acid fluoride production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479907A (en) * | 2021-07-15 | 2021-10-08 | 江西省东沿药业有限公司 | Crystallization method of ammonium fluoride or ammonium bifluoride |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376633A (en) * | 2002-05-09 | 2002-10-30 | 四川龙蟒集团有限责任公司 | Process for concentrating diluted sulfuric acid and removing impurities |
| CN201613038U (en) * | 2009-05-06 | 2010-10-27 | 余荣华 | Spray crystallizer |
| CN104192863A (en) * | 2014-08-25 | 2014-12-10 | 东至天孚化工有限公司 | Pilot plant test method in ammonium hydrogen fluoride production technology |
-
2015
- 2015-04-03 CN CN201510159229.4A patent/CN106145160A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1376633A (en) * | 2002-05-09 | 2002-10-30 | 四川龙蟒集团有限责任公司 | Process for concentrating diluted sulfuric acid and removing impurities |
| CN201613038U (en) * | 2009-05-06 | 2010-10-27 | 余荣华 | Spray crystallizer |
| CN104192863A (en) * | 2014-08-25 | 2014-12-10 | 东至天孚化工有限公司 | Pilot plant test method in ammonium hydrogen fluoride production technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479907A (en) * | 2021-07-15 | 2021-10-08 | 江西省东沿药业有限公司 | Crystallization method of ammonium fluoride or ammonium bifluoride |
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Application publication date: 20161123 |
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