CN1026096C - Process for preparing foamless ammonium bicarbonate additive - Google Patents
Process for preparing foamless ammonium bicarbonate additive Download PDFInfo
- Publication number
- CN1026096C CN1026096C CN 91102442 CN91102442A CN1026096C CN 1026096 C CN1026096 C CN 1026096C CN 91102442 CN91102442 CN 91102442 CN 91102442 A CN91102442 A CN 91102442A CN 1026096 C CN1026096 C CN 1026096C
- Authority
- CN
- China
- Prior art keywords
- ammonium bicarbonate
- additive
- stearic acid
- ammonia
- foamless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/26—Carbonates or bicarbonates of ammonium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fertilizers (AREA)
Abstract
The present invention discloses a preparation method of a C type compound ammonium hydrogen carbonate additive, which uses C12-C18 alkyl benzene sulfonic acid or C12-C18 sodium alkyl benzene sulfonate or pentadecyl sulfonyl chloride as basic raw material, stearic acid as main raw material and ordinary diesel oil as an auxiliary agent according to a certain proportion to prepare an emulsion by dissolution, mixing, heating, stirring and sponification by ammonia water. When added into a carbonized system, the C type compound ammonium hydrogen carbonate additive can effectively prevent foaming and liquid entrainment of the carbonized system, can remarkably enhance the nitrogen content of ammonium hydrogen carbonate and reduces the content of water. The present invention can prevent agglomeration, stabilizes the technological conditions of carbonization and enhances the separation effect of a centrifugal machine.
Description
The invention belongs to a kind of preparation method who is used to produce the additive of agricultural ammonium bicarbonate.
Bicarbonate of ammonia is the peculiar a kind of lower concentration instant nitrogenousfertilizer of China, occupies critical role in industrial and agricultural production.To nineteen ninety the whole nation have 1059 tame small nitrogenous fertilizer plants to produce bicarbonate of ammonia, about 70% factory uses ammonium bicarbonate additive.
Ammonium bicarbonate additive is in the use of little nitrogenous fertilizer industry, though the history of existing more than ten years is really applied still thing in recent years.
Though existing ammonium bicarbonate additive has water content, the raising nitrogen content that reduces bicarbonate of ammonia, prevent performances such as bicarbonate of ammonia caking, but it is relatively poor to the situation adaptability that the fluctuation of small nitrogenous fertilizer plant carbonization system processing condition is big, cause the blister band liquid of carbonization system easily to some extent, even, bring many harm to ordinary production seriously with the phenomenon of liquid.
The object of the present invention is to provide a kind of preparation method of foamless ammonium bicarbonate additive.This foamless ammonium bicarbonate additive is used for carbonization system.This foamless ammonium bicarbonate additive is the anion surfactant that contains multiple component, with other compound ammonium bicarbonate additive such as Y-2 type, what L-2 type etc. were different is, this foamless ammonium bicarbonate additive is not the simple mixing of two or more active constituent, but in various active component mixing process, add a kind of material that reacts with it, form the composite reactive component that replenishes mutually on the function.This foamless ammonium bicarbonate additive is the same with other type ammonium bicarbonate additive, all has anti-caking, reduces water content, improves the performance of nitrogen content.But, it is simple that this foamless ammonium bicarbonate additive has more technology, with low cost, and consumption is low, and is in use non-foaming, is not with liquid, can fit the big advantage of small nitrogenous fertilizer plant process conditions fluctuation, and this foamless ammonium bicarbonate additive is the emulsion through saponification, can be directly used in carbonization system.
The objective of the invention is to be achieved through the following technical solutions.
The preparation method of the compound ammonium bicarbonate additive of a kind of C type is characterized in that:
1, technical recipe:
With 12～octadecyl Phenylsulfonic acid or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE is basic raw material, is the main raw material preparation with the stearic acid.Its prescription is: 12～octadecyl Phenylsulfonic acid or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE 300～350kg, and stearic acid 25～30kg, ordinary diesel oil 200kg, bicarbonate of ammonia 50kg, all the other compositions are soft water.
2, technological process:
The preparation method of the compound ammonium bicarbonate additive of this C type is divided into five processes, the steps include:
A, 25～30kg stearic acid is joined in the soft water of 200kg, add 25kg bicarbonate of ammonia, heated and stirred makes the stearic acid dissolving.
B, 25kg bicarbonate of ammonia is dissolved under the normal temperature in the 200kg soft water.
C, 200kg diesel oil is heated to 50～60 ℃.
D, with 300～350kg, 12～octadecyl Phenylsulfonic acid or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE with after stearic acid solution that step a is produced mixes, join in stainless steel reactor or the enamel reaction still, heated 60～90 minutes.
E, the reaction product of steps d is put in the enamelled vessel, cooling adds the 200kg diesel oil that step c heats, and after mixing, the ammonium bicarbonate soln that adds step b carries out saponification.
3, processing condition control:
A, reaction times: 60～90 minutes.
B, temperature of reaction: 120～130 ℃.
C, vapor pressure: 0.27～0.37MPa
D, type of heating: in reaction vessel,, open wide system with the steam coils heating.
12～octadecyl Phenylsulfonic acid among the present invention or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE and stearic weight percentage are greater than 95%.
The C type compound ammonium bicarbonate additive prepared by the present invention is used for carbonization system, is 0.4～0.6kg additive by the fertile add-on of ton.
Other essential characteristics of the present invention also are:
1, stearic acid is an active constituent, is again topmost defoamer, also is its thickening power simultaneously, and adding stearic acid is the main feature of the compound ammonium bicarbonate additive of C type.
2, the compound ammonium bicarbonate additive of C type has utilized the synergistic effect between alkylbenzene sulfonate and the stearate, forms active constituent compound system more than, is reduced to mnm. thereby make to bubble.
3, the compound ammonium bicarbonate additive of C type uses diesel oil to make auxiliary agent, has both played the froth breaking effect, has reduced cost again.
4, the compound ammonium bicarbonate additive of C type uses soft water to make solvent, is for fear of producing calcium stearate, magnesium salts precipitation.
5, in the compound ammonium bicarbonate additive process for preparation of C type, used 50kg bicarbonate of ammonia can replace with the carbonated aqueous ammonia of equivalent, preferably uses the no sulphur aqueous ammonia to replace of equivalent, and this is for fear of the phenomenon that the additive color and luster is deepened occurring.
Below in conjunction with embodiment the present invention is further described.
Embodiment:
Prescription (pressing the 1000kg benchmark calculates): 12～octadecyl Phenylsulfonic acid or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE 300～350kg, stearic acid 25～30kg, operate by five processes, make the compound ammonium bicarbonate additive of C type, the steps include:
A, 25～30kg stearic acid is joined in the soft water of 200kg, add 25kg bicarbonate of ammonia, heated and stirred is impelled the stearic acid dissolving.
B, 25kg bicarbonate of ammonia is dissolved under the normal temperature in the 200kg soft water.
C, 200kg diesel oil is heated to 50～60 ℃ with steam coils in container.
D, with 300～350kg, 12～octadecyl Phenylsulfonic acid or 12～octadecyl sodium sulfonate or pentadecyl SULPHURYL CHLORIDE with after stearic acid solution that step a is produced mixes, join in stainless steel reactor or the enamel reaction still, feed 0.27～0.37MPa, 130～140 ℃ steam was with steam coils heating 60～90 minutes.When beginning to be heated to certain temperature, have a large amount of foams and occur, stop heating, treat lather collapse after, reheat for some time.
E, the product that steps d is reacted are put in the enamelled vessel, and cooling a little adds the 200kg diesel oil that step c heats, behind thorough mixing, be cooled to below 40 ℃, the ammonium bicarbonate soln that adds step b carries out saponification reaction, stir, make the compound ammonium bicarbonate additive of C type.
Claims (1)
1, a kind of preparation method of foamless ammonium bicarbonate additive is characterized in that this method comprises the steps:
A, 25～30kg stearic acid is joined in the soft water of 200kg, add 25kg bicarbonate of ammonia, heated and stirred is impelled the stearic acid dissolving;
B, 25kg bicarbonate of ammonia is dissolved under the normal temperature in the 200kg soft water;
C, 200kg diesel oil is heated to 50～60 ℃ with steam coils in container;
D, with 300～350kg, 12～octadecyl Phenylsulfonic acid or 12～octadecyl benzene sulfonic acid sodium salt or pentadecyl SULPHURYL CHLORIDE with after stearic acid solution that step a is produced mixes, join in stainless steel reactor or the enamel reaction still, feed 0.27～0.37MPa, 130～140 ℃ of steam were with steam coils heating 60～90 minutes;
E, the product that steps d is reacted are placed in the enamelled vessel, and cooling a little adds the 200kg diesel oil that step c heats, and behind thorough mixing, is cooled to below 40 ℃, and the ammonium bicarbonate soln that adds step b carries out saponification reaction, stirs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102442 CN1026096C (en) | 1991-04-15 | 1991-04-15 | Process for preparing foamless ammonium bicarbonate additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102442 CN1026096C (en) | 1991-04-15 | 1991-04-15 | Process for preparing foamless ammonium bicarbonate additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065846A CN1065846A (en) | 1992-11-04 |
| CN1026096C true CN1026096C (en) | 1994-10-05 |
Family
ID=4905602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91102442 Expired - Fee Related CN1026096C (en) | 1991-04-15 | 1991-04-15 | Process for preparing foamless ammonium bicarbonate additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026096C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591027B (en) * | 2009-06-12 | 2010-12-01 | 江苏禾友化工有限公司 | Compound ammonium bicarbonate additive and production method thereof |
-
1991
- 1991-04-15 CN CN 91102442 patent/CN1026096C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065846A (en) | 1992-11-04 |
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