CN107540413A - A kind of method that urea is extracted in the crystalline mother solution from aspartic acid ornithine - Google Patents
A kind of method that urea is extracted in the crystalline mother solution from aspartic acid ornithine Download PDFInfo
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- CN107540413A CN107540413A CN201710826086.7A CN201710826086A CN107540413A CN 107540413 A CN107540413 A CN 107540413A CN 201710826086 A CN201710826086 A CN 201710826086A CN 107540413 A CN107540413 A CN 107540413A
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- urea
- aspartic acid
- mother solution
- acid ornithine
- crystalline mother
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Abstract
The present invention relates to the extractive technique field of compound, specifically discloses a kind of method that urea is extracted in crystalline mother solution from aspartic acid ornithine, and methods described comprises the following steps：The aspartic acid ornithine crystalline mother solution of immobilised enzymes synthesis is subjected to filtration treatment, obtains filtrate；Described filtrate is subjected to air-distillation processing, obtains normal pressure concentrate：Normal pressure concentrate is subjected to the processing that is concentrated under reduced pressure, obtains decompressed concentrate；Decompressed concentrate is subjected to mist projection granulating, after drying process, obtains urea fertilizer.The method that urea is extracted in the crystalline mother solution provided by the invention from aspartic acid ornithine, technique is simple, easy to operate, and filtration treatment can further reclaim product, improves product yield；The recyclable solvent of air-distillation, is applied mechanically, reduces cost；Simultaneously chemical fertilizer is made in extraction accessory substance urea, improves economic value.
Description
Technical field
The present invention relates to the extractive technique field of compound, more particularly to one kind is from aspartic acid ornithine crystalline mother solution
The method for extracting urea.
Background technology
Urea is a kind of high concentration nitrogenous fertilizer, belongs to neutral quick-acting fertilizer, it can also be used to produces a variety of compound fertilizers.In soil
Any harmful substance is not remained, and chronic administration does not have harmful effect.Animal husbandry can be used as the feed of ruminant；Special plastics
The raw material of raw material, especially urea-formaldehyde resin, some glue classes；It is in addition, important auxiliary when urea is chemical fertilizer, dyeing and printing
Auxiliary agent；Urea also has processing diesel engine, engine, the use such as waste gas of Thermal Power Station.
And be urea using the accessory substance of immobilised enzymes synthesis aspartic acid ornithine, and with solvent amount in crystallization process
Greatly, cost is high, therefore, it is necessary to solve the problems, such as the recovery of accessory substance, to reduce cost, improves the economic value of technique.
The content of the invention
It is big for solvent dosage in existing immobilised enzymes synthesis aspartic acid ornithine crystallization process, and accessory substance is urine
Element, directly discarded without processing, cause the wasting of resources, the problems such as cost increase, the present invention provides a kind of from L-aminobutanedioic acid bird
The method that urea is extracted in propylhomoserin crystalline mother solution.
To achieve the above object of the invention, the embodiment of the present invention employs following technical scheme：
A kind of method that urea is extracted in crystalline mother solution from aspartic acid ornithine, including at least following steps：
（1）The aspartic acid ornithine crystalline mother solution of immobilised enzymes synthesis is subjected to filtration treatment, obtains filtrate；
（2）Described filtrate is subjected to air-distillation processing, obtains normal pressure concentrate：
（3）Normal pressure concentrate is subjected to the processing that is concentrated under reduced pressure, obtains decompressed concentrate；
（4）Decompressed concentrate is subjected to mist projection granulating, after drying process, obtains urea fertilizer.
Relative to prior art, the method for extraction urea in the crystalline mother solution provided by the invention from aspartic acid ornithine,
Technique is simple, easy to operate, and filtration treatment can further reclaim product, improves product yield；The recyclable solvent of air-distillation,
Applied mechanically, reduce the wasting of resources, reduce cost；Simultaneously chemical fertilizer is made in extraction accessory substance urea, and fertilizer urea content is high, improves
Economic value.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment of the present invention provides a kind of method that urea is extracted in crystalline mother solution from aspartic acid ornithine, this method bag
Include following steps：
（1）The aspartic acid ornithine crystalline mother solution of immobilised enzymes synthesis is subjected to filtration treatment, obtains filtrate；
（2）Described filtrate is subjected to air-distillation processing, obtains normal pressure concentrate：
（3）Normal pressure concentrate is subjected to the processing that is concentrated under reduced pressure, obtains decompressed concentrate；
（4）Decompressed concentrate is subjected to mist projection granulating, after drying process, obtains urea fertilizer.
Explanation is further explained to the above method below：
Preferably, filtration treatment is realized by filter bag, can be further separated out aspartic acid ornithine, obtains the filter containing urea
Liquid.
Preferably, the aspartic acid ornithine in the aspartic acid ornithine crystalline mother solution is crystallized filter by filtration treatment
Go out, improve product yield.
Preferably, the temperature of air-distillation is 75-80 DEG C, contributes to the recovery of the distillation and concentration and solvent of filtrate, is reclaimed
Solvent can be applied mechanically, reduce the wasting of resources, reduce cost.
Preferably, the temperature being concentrated under reduced pressure is 50-60 DEG C, further reduces the volume of concentrate, reduces in concentrate
Water content.
Preferably, decompressed concentrate water content 20-30%, contributes to mist projection granulating.
Preferably, drying process is 70 DEG C of vacuum drying 6-8h, obtains urea fertilizer.
This method technique is simple, easy to operate, and filtration treatment can further reclaim product, improves product yield；Normal pressure
Recyclable solvent is distilled, is applied mechanically, the wasting of resources is reduced, reduces cost；Simultaneously chemical fertilizer, and chemical fertilizer is made in extraction accessory substance urea
Urea content is high, improves economic value.
Urea is extracted in the crystalline mother solution provided in an embodiment of the present invention from aspartic acid ornithine in order to better illustrate
Method, illustrated below by embodiment is further.
Embodiment 1
The method that urea is extracted from aspartic acid ornithine crystalline mother solution
（1）Terminated using immobilised enzymes synthesis aspartic acid ornithine, obtain the mother liquor containing aspartic acid ornithine
1000L, sock filtration insoluble matter, aspartic acid ornithine coarse powder is obtained, obtain filtrate 1000L；
（2）Filtrate is inputted into air-distillation tank, 80 DEG C of material temperature is controlled, air-distillation, recycling design, obtains normal pressure concentrate 200L；
（3）Normal pressure concentrate is inputted into the tank that is concentrated under reduced pressure, 50 DEG C of material temperature is controlled, is concentrated under reduced pressure into 20L；
（4）Decompressed concentrate is subjected to mist projection granulating；
（5）70 DEG C of vacuum drying 7h, obtain chemical fertilizer 14.8kg, urea content 95%.
Embodiment 2
The method that urea is extracted from aspartic acid ornithine crystalline mother solution
（1）Terminated using immobilised enzymes synthesis aspartic acid ornithine, obtain the mother liquor containing aspartic acid ornithine
1000L, using sock filtration insoluble matter, obtain aspartic acid ornithine coarse powder, and filtrate 1000L.
（2）Filtrate is inputted into air-distillation tank, 78 DEG C of material temperature is controlled, air-distillation, recycling design, obtains normal pressure concentrate；
（3）Normal pressure concentrate is inputted into the tank that is concentrated under reduced pressure, 60 DEG C of material temperature is controlled, is concentrated under reduced pressure into 20L；
（4）Decompressed concentrate is subjected to mist projection granulating；
（5）70 DEG C of vacuum drying 7h, obtain chemical fertilizer 15.8kg, urea content 93.3%.
Embodiment 3
The method that urea is extracted from aspartic acid ornithine crystalline mother solution
（1）Terminated using immobilised enzymes synthesis aspartic acid ornithine, obtain the mother liquor containing aspartic acid ornithine
1000L, using sock filtration insoluble matter, obtain aspartic acid ornithine coarse powder, and filtrate 1000L；
（2）Filtrate is inputted into air-distillation tank, 70 DEG C of material temperature is controlled, air-distillation, recycling design, obtains normal pressure concentrate 230L；
（3）Normal pressure concentrate is inputted into the tank that is concentrated under reduced pressure, 55 DEG C of material temperature is controlled, is concentrated under reduced pressure into 20L；
（4）Decompressed concentrate is subjected to mist projection granulating；
（5）70 DEG C of vacuum drying 7h, obtain chemical fertilizer 15.3kg, urea content 94.4%.
It can be obtained by data above, what the embodiment of the present invention was provided extracts urea from aspartic acid ornithine crystalline mother solution
Method, technique is simple, easy to operate, and filtration treatment can further reclaim product, improves product yield；Air-distillation can return
Solvent is received, reduces cost；Simultaneously chemical fertilizer is made in extraction accessory substance urea, and the urea content of chemical fertilizer improves economical up to 93%-95%
Value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. the method for urea is extracted in a kind of crystalline mother solution from aspartic acid ornithine, it is characterised in that：Including at least following step
Suddenly：
（1）The aspartic acid ornithine crystalline mother solution of immobilised enzymes synthesis is subjected to filtration treatment, obtains filtrate；
（2）Described filtrate is subjected to air-distillation processing, obtains normal pressure concentrate：
（3）Normal pressure concentrate is subjected to the processing that is concentrated under reduced pressure, obtains decompressed concentrate；
（4）Decompressed concentrate is subjected to mist projection granulating, after drying process, obtains urea fertilizer.
2. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
Filtration treatment is stated to filter out the aspartic acid ornithine crystallization in the aspartic acid ornithine crystalline mother solution.
3. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
The temperature for stating air-distillation is 75-80 DEG C.
4. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
It is 50-60 DEG C to state the temperature being concentrated under reduced pressure.
5. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
State decompressed concentrate water content 20%-30%.
6. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
Drying process is stated as 70 DEG C of vacuum drying 6-8h.
7. the method for urea is extracted from aspartic acid ornithine crystalline mother solution as claimed in claim 1, it is characterised in that：Institute
Filtration treatment is stated to realize by filter bag.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710826086.7A CN107540413A (en) | 2017-09-14 | 2017-09-14 | A kind of method that urea is extracted in the crystalline mother solution from aspartic acid ornithine |
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| CN201710826086.7A CN107540413A (en) | 2017-09-14 | 2017-09-14 | A kind of method that urea is extracted in the crystalline mother solution from aspartic acid ornithine |
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Citations (5)
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|---|---|---|---|---|
| BE641880A (en) * | 1962-12-27 | 1964-04-16 | ||
| CN102093108A (en) * | 2010-12-22 | 2011-06-15 | 江西核工业瑞丰生化有限责任公司 | Method for producing amino acid fertilizers with gibberellin raffinate |
| CN103467344A (en) * | 2013-09-26 | 2013-12-25 | 宁夏启元药业有限公司 | Method for recovering urea from tetracycline urea compound salt crystallization mother liquor and recycling urea |
| CN104807924A (en) * | 2014-01-28 | 2015-07-29 | 黑龙江天行健医药科技开发有限公司 | Method for detecting specific impurities in ornithine aspartate raw material and preparation thereof |
| CN105154499A (en) * | 2015-09-30 | 2015-12-16 | 精晶药业股份有限公司 | Preparation method of L-aspartate-L-ornithine |
-
2017
- 2017-09-14 CN CN201710826086.7A patent/CN107540413A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE641880A (en) * | 1962-12-27 | 1964-04-16 | ||
| CN102093108A (en) * | 2010-12-22 | 2011-06-15 | 江西核工业瑞丰生化有限责任公司 | Method for producing amino acid fertilizers with gibberellin raffinate |
| CN103467344A (en) * | 2013-09-26 | 2013-12-25 | 宁夏启元药业有限公司 | Method for recovering urea from tetracycline urea compound salt crystallization mother liquor and recycling urea |
| CN104807924A (en) * | 2014-01-28 | 2015-07-29 | 黑龙江天行健医药科技开发有限公司 | Method for detecting specific impurities in ornithine aspartate raw material and preparation thereof |
| CN105154499A (en) * | 2015-09-30 | 2015-12-16 | 精晶药业股份有限公司 | Preparation method of L-aspartate-L-ornithine |
Non-Patent Citations (2)
| Title |
|---|
| 药学教研组: "《药剂士专业试用教材 药剂学》", 31 December 1975, 广西卫生学校 * |
| 谢丰毅 等: "《化工机械 第二版》", 30 April 1990, 化学工业出版社 * |
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