CN109956949A - A kind of H foaming agent and process for producing same and production equipment - Google Patents
A kind of H foaming agent and process for producing same and production equipment Download PDFInfo
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- CN109956949A CN109956949A CN201711430144.0A CN201711430144A CN109956949A CN 109956949 A CN109956949 A CN 109956949A CN 201711430144 A CN201711430144 A CN 201711430144A CN 109956949 A CN109956949 A CN 109956949A
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- foaming agent
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- sulfuric acid
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/08—Bridged systems
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Abstract
The invention discloses a kind of H foaming agent and process for producing same and production equipments, wherein method includes the following steps: S101, is added dissolution kettle for methenamine and sodium nitrite, while mother liquid coming is added and is stirred, dissolves, precools；S102, the mixed liquor that methenamine and sodium nitrite are dissolved into put into nitrosation reaction kettle, and dilute sulfuric acid is added, and produce H foaming agent suspension；S103 is added liquefied ammonia and carries out neutralization reaction；S104 produces H foaming agent wet finished product after washing dewatering suspensions；S105, wet finished product is dry through flash steam stream, it pulverizes and sieves to obtain H foaming agent finished product.
Description
Technical field
The present invention relates to chemical production fields, more specifically to a kind of H foaming agent and process for producing same and production equipment.
Background technique
H foaming agent (dinitrosopentamethylene tetramine) is widely used in the industrial production, but existing H foaming agent is raw
Production efficiency is lower, and production process is complex, is not easy to industrial production.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of H foaming agent production
Method and production equipment.
The technical solution adopted by the present invention to solve the technical problems is: a kind of H foaming agent and process for producing same, this method include
Following steps:
Methenamine and sodium nitrite are added dissolution kettle, while mother liquid coming are added and is stirred, dissolves, is pre-chilled by S101
But；
S102, the mixed liquor that methenamine and sodium nitrite are dissolved into put into nitrosation reaction kettle, and dilute sulfuric acid is added, raw
At H foaming agent suspension；
S103 is added liquefied ammonia and carries out neutralization reaction；
S104 generates H foaming agent wet finished product after washing dewatering suspensions；
S105, wet finished product is dry through flash steam stream, it pulverizes and sieves to obtain H foaming agent finished product.
Further, the dilute sulfuric acid being added in step S102 is the dilute sulfuric acid that concentration is 40%.
Further, step S103 is specifically included:
S1031 is added ammonium hydroxide and carries out neutralization reaction, with reaction product CH2O reaction generates (CH2)6N4And tail gas；
S1032 absorbs tail gas using ammonium hydroxide absorption tower, generates NO2Discharge.
To solve the above problems, the present invention also provides a kind of H foaming agent production equipment, which includes:
Dissolution kettle is stirred for methenamine, sodium nitrite and mother liquid coming to be added, dissolves, precools；
Nitrosation reaction kettle generates H hair for the mixed liquor and dilute sulfuric acid that methenamine and sodium nitrite are dissolved into be added
Infusion suspension；
The nitrosation reaction kettle is also used to be added liquefied ammonia and carries out neutralization reaction；
It is dehydrated wash mill, for generating H foaming agent wet finished product after washing dewatering suspensions；
Drying device, for wet finished product is dry through flash steam stream；
Grinding device obtains H foaming agent finished product for crushing dried H foaming agent finished product and being sieved.
Further, which is the dilute sulfuric acid that concentration is 40%.
Further, which is also used to be added ammonium hydroxide and carries out neutralization reaction, with reaction product CH2O is anti-
(CH should be generated2)6N4And tail gas；
The production equipment further include:
Ammonium hydroxide absorption tower generates NO for absorbing to tail gas2Discharge.
Implement H foaming agent and process for producing same and production equipment of the invention, has the advantages that and implement H of the invention
Foam agent and process for producing same and production equipment, only mother liquid coming need to be added in methenamine and sodium nitrite and dissolved, precooled
Mixed liquor is added to dilute sulfuric acid is added in nitrosation reaction kettle later, H foaming agent suspension can be produced, to H foaming agent
Suspension, which is dehydrated, is washed, dried, crushed etc., produces H foaming agent finished product, and entire production process is simplified, and is produced
Efficiency is improved, and carries out Chemical Manufacture convenient for user.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the flow diagram of H foaming agent and process for producing same of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention will be made into one below
Step ground detailed description.
In the first embodiment of H foaming agent and process for producing same of the invention, method includes the following steps: S101, it will be black
Dissolution kettle is added in Lip river tropine and sodium nitrite, while mother liquid coming is added and is stirred, dissolves, precools；
S102, the mixed liquor that methenamine and sodium nitrite are dissolved into put into nitrosation reaction kettle, and dilute sulfuric acid is added, raw
At H foaming agent suspension；
S103 is added liquefied ammonia and carries out neutralization reaction；
S104 generates H foaming agent wet finished product after washing dewatering suspensions；
S105, wet finished product is dry through flash steam stream, it pulverizes and sieves to obtain H foaming agent finished product.
Implement H foaming agent and process for producing same of the invention, it is molten only mother liquid coming progress need to be added in methenamine and sodium nitrite
Mixed liquor is added after precooling to dilute sulfuric acid is added in nitrosation reaction kettle, can produce H foaming agent suspension by solution,
H foaming agent finished product is produced being dehydrated to H foaming agent suspension, washing, dry, crush etc., entire production process obtains
To simplification, production efficiency is improved, and carries out Chemical Manufacture convenient for user.
Preferably, the dilute sulfuric acid being added in step S102 is the dilute sulfuric acid that concentration is 40%.
Further, step S103 is specifically included:
S1031 is added ammonium hydroxide and carries out neutralization reaction, generation (CH2) 6N4 and tail gas are reacted with reaction product CH2O；
S1032 absorbs tail gas using ammonium hydroxide absorption tower, generates NO2 discharge.
In the second embodiment of H foaming agent production equipment of the invention, this method equipment includes: dissolution kettle, for adding
Enter methenamine, sodium nitrite and mother liquid coming to be stirred, dissolve, precool；
Nitrosation reaction kettle generates H hair for the mixed liquor and dilute sulfuric acid that methenamine and sodium nitrite are dissolved into be added
Infusion suspension；
The nitrosation reaction kettle is also used to be added liquefied ammonia and carries out neutralization reaction；
It is dehydrated wash mill, for generating H foaming agent wet finished product after washing dewatering suspensions；
Drying device, for wet finished product is dry through flash steam stream；
Grinding device obtains H foaming agent finished product for crushing dried H foaming agent finished product and being sieved.
Implement H foaming agent production equipment of the invention, it is molten only mother liquid coming progress need to be added in methenamine and sodium nitrite
Mixed liquor is added after precooling to dilute sulfuric acid is added in nitrosation reaction kettle, can produce H foaming agent suspension by solution,
H foaming agent finished product is produced being dehydrated to H foaming agent suspension, washing, dry, crush etc., entire production process obtains
To simplification, production efficiency is improved, and carries out Chemical Manufacture convenient for user.
Preferably, which is the dilute sulfuric acid that concentration is 40%.
Further, which is also used to be added ammonium hydroxide and carries out neutralization reaction, anti-with reaction product CH2O
(CH2) 6N4 and tail gas should be generated；
The production equipment further include:
Ammonium hydroxide absorption tower generates NO2 discharge for absorbing to tail gas.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
- The agent and process for producing same 1. a kind of H foams, which is characterized in that the described method comprises the following steps:Methenamine and sodium nitrite are added dissolution kettle, while mother liquid coming are added and is stirred, dissolves, precools by S101；S102, the mixed liquor that methenamine and sodium nitrite are dissolved into put into nitrosation reaction kettle, and dilute sulfuric acid is added, and generate H Foaming agent suspension；S103 is added liquefied ammonia and carries out neutralization reaction；S104 generates H foaming agent wet finished product after washing dewatering suspensions；S105, wet finished product is dry through flash steam stream, it pulverizes and sieves to obtain H foaming agent finished product.
- The agent and process for producing same 2. H according to claim 1 foams, which is characterized in that the dilute sulphur being added in the step S102 Acid is the dilute sulfuric acid that concentration is 40%.
- The agent and process for producing same 3. H according to claim 1 foams, which is characterized in that the step S103 is specifically included:S1031 is added ammonium hydroxide and carries out neutralization reaction, with reaction product CH2O reaction generates (CH2)6N4And tail gas；S1032 absorbs tail gas using ammonium hydroxide absorption tower, generates NO2Discharge.
- 4. a kind of H foaming agent production equipment, which is characterized in that the generating device includes:Dissolution kettle is stirred for methenamine, sodium nitrite and mother liquid coming to be added, dissolves, precools；Nitrosation reaction kettle generates H foaming agent for the mixed liquor and dilute sulfuric acid that methenamine and sodium nitrite are dissolved into be added Suspension；The nitrosation reaction kettle is also used to be added liquefied ammonia and carries out neutralization reaction；It is dehydrated wash mill, for generating H foaming agent wet finished product after washing dewatering suspensions；Drying device, for wet finished product is dry through flash steam stream；Grinding device obtains H foaming agent finished product for crushing dried H foaming agent finished product and being sieved.
- 5. H foaming agent production equipment according to claim 4, which is characterized in that the dilute sulfuric acid is that concentration is 40% Dilute sulfuric acid.
- 6. H foaming agent production equipment according to claim 4, which is characterized in that the nitrosation reaction kettle is also used to add Enter ammonium hydroxide and carry out neutralization reaction, with reaction product CH2O reaction generates (CH2)6N4And tail gas；The production equipment further include:Ammonium hydroxide absorption tower generates NO for absorbing to tail gas2Discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430144.0A CN109956949A (en) | 2017-12-26 | 2017-12-26 | A kind of H foaming agent and process for producing same and production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430144.0A CN109956949A (en) | 2017-12-26 | 2017-12-26 | A kind of H foaming agent and process for producing same and production equipment |
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| CN109956949A true CN109956949A (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711430144.0A Pending CN109956949A (en) | 2017-12-26 | 2017-12-26 | A kind of H foaming agent and process for producing same and production equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855727A (en) * | 2020-07-23 | 2020-10-30 | 淮北师范大学 | Method for detecting purity and impurity content of foaming agent product |
| CN115304135A (en) * | 2022-07-22 | 2022-11-08 | 安徽润岳科技有限责任公司 | Electrodialysis system for recycling foaming agent mother liquor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5180898A (en) * | 1975-01-08 | 1976-07-15 | Eiwa Chem Ind | JINITOROSOPENTAMECHIRENTETORAMINNO SEIZOHOHO |
| CS210824B1 (en) * | 1979-03-30 | 1982-01-29 | Svatopluk ZEMAN | Method of stabilization of 1,5-endomethylen-3,7-dinitroso-1,3,5,7-tetraazacyclooctane |
| CN106744766A (en) * | 2016-12-19 | 2017-05-31 | 中国矿业大学 | A kind of production method of mg-doped hydroxyapatite defluoridation filter material |
-
2017
- 2017-12-26 CN CN201711430144.0A patent/CN109956949A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5180898A (en) * | 1975-01-08 | 1976-07-15 | Eiwa Chem Ind | JINITOROSOPENTAMECHIRENTETORAMINNO SEIZOHOHO |
| CS210824B1 (en) * | 1979-03-30 | 1982-01-29 | Svatopluk ZEMAN | Method of stabilization of 1,5-endomethylen-3,7-dinitroso-1,3,5,7-tetraazacyclooctane |
| CN106744766A (en) * | 2016-12-19 | 2017-05-31 | 中国矿业大学 | A kind of production method of mg-doped hydroxyapatite defluoridation filter material |
Non-Patent Citations (1)
| Title |
|---|
| MICHAEL R.CRAMPTON 等: "Mechanistic studies on the synthesis and decomposition Mechanistic studies on the synthesis and decomposition", 《JOURNAL OF CHEMICAL RESEARCH, SYNOPSES》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855727A (en) * | 2020-07-23 | 2020-10-30 | 淮北师范大学 | Method for detecting purity and impurity content of foaming agent product |
| CN111855727B (en) * | 2020-07-23 | 2023-12-19 | 淮北师范大学 | Method for detecting purity and impurity content of foaming agent product |
| CN115304135A (en) * | 2022-07-22 | 2022-11-08 | 安徽润岳科技有限责任公司 | Electrodialysis system for recycling foaming agent mother liquor |
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