CN205774222U - Produce the system of glycine - Google Patents
Produce the system of glycine Download PDFInfo
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- CN205774222U CN205774222U CN201620427675.9U CN201620427675U CN205774222U CN 205774222 U CN205774222 U CN 205774222U CN 201620427675 U CN201620427675 U CN 201620427675U CN 205774222 U CN205774222 U CN 205774222U
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Abstract
This utility model relates to chemical production equipment field, is specifically related to a kind of system producing glycine.The system of production glycine of the present utility model, is included glycine preparation facilities, ion interchange unit, enrichment facility A, crystallization apparatus A and the chromatograph desalter set gradually by technique sequencing.This system is easily operated, environmental friendliness, can the isolated and purified glycine of serialization, the large-scale continuous production of industrialization can be realized, can be good at realizing glycine to separate with byproduct salt impurity (including the alkali metal acid salt of iminodiacetic acid, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc.), yield is high, improves the product quality of glycine.
Description
Technical field
The present invention relates to chemical production equipment field, be specifically related to a kind of system producing glycine.
Background technology
Glycine, as a kind of important fine chemical product, is widely used in medicine, food, chemical industry, agriculture
The fields such as medicine.The preparation technology of glycine has multiple, and wherein executing special rake (Strecker) method is extensively to adopt
One of method, in Strecker method, be first the glycine obtaining alkali metal salt, such as ammonia
Base acetonitrile obtains Glycine sodium aqueous solution by sodium hydroxide basic hydrolysis, then water-soluble by the glycinate of gained
Aminoacid prepared by loss of thick fluid salt.
At present, the aqueous solution desalination of glycinate preparing aminoacid is the alkali using acid to neutralize glycine mostly
The aqueous solution of slaine, reclaims glycine by method for crystallising the most again.Such as Chinese patent CN1962611B
In report to hydroxyacetonitrile method preparation produce the alkali solution liquid containing glycinate, after deamination with mineral acid neutralize,
Decolouring, destaining solution is through concentrating fractional crystallization and being recrystallized to give glycine and inorganic salt.The desalination of the method
During need to use substantial amounts of mineral acid, relatively strong to the corrosivity of equipment, therefore, production technology is to equipment
Requirement higher.It addition, in the method, in order to make glycine and inorganic salt be sufficiently separated, generally require
Carry out Step crystallization by repeatedly regulating pH value, or regulation temperature carries out Step crystallization, these methods
Operation the most miscellaneous, be difficult to hold, need corresponding complicated equipment to coordinate, production efficiency is low,
And industrial implementation is highly difficult.
Additionally, due to the raw material executing special rake (Strecker) method employing is ammonia and hydroxyacetonitrile, ammonia and hydroxyl
Side reaction can be produced during base acetonitrile reaction, generate Iminodiacetonitrile 1,1'-Imidodiacetonitrile etc., in alkaline hydrolysis subsequently and acidifying
Reaction becomes iminodiacetic acid, nitrilotriacetic acid, affects separation and the quality of glycine, finally containing by-product
The mother solution of thing iminodiacetic acid as liquid waste processing, causes the wasting of resources after time.
It addition, also document reports to use and is filled with the continuous ion exchange unit pair of cation exchange resin
Alkali metal ion in the aqueous solution of alkali metal salt of glycine carries out cation exchange (desalination), thus obtains
Glycine solution, but simultaneously, possibly together with the alkali metal of iminodicarboxylic acid in the glycine solution obtained
Acid salt, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc., the glycine solution that obtains crystallized sweet ammonia
Acid crystal, except containing unsegregated glycine in crystalline mother solution, possibly together with the alkali metal of iminodicarboxylic acid
Acid salt, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc., these salt impurity are present in crystalline mother solution,
Along with the continuous circulation of crystalline mother solution, in mother solution, the content of salt is more and more higher, for traditional electric osmose of desalination
Analysis technology and ion exchange technique are not suitable for high salt concentration material system, affect separation and the quality of glycine,
Cause glycine yield to reduce, cause glycine and the wasting of resources of by-product in mother solution.
Summary of the invention
In view of this, the purpose of this utility model is to overcome drawbacks described above, proposes a kind of glycine that produces
System, this system is easily operated, it is possible to well realizes glycine and (includes imido with byproduct salt impurity
The alkali metal acid salt of base oxalic acid, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc.) separation, improve sweet
The product quality of propylhomoserin.
For achieving the above object, the technical solution of the utility model is:
A kind of system producing glycine, the glycine preparation facilities including setting gradually by technique sequencing,
Ion interchange unit, enrichment facility A, crystallization apparatus A and chromatograph desalter.As shown in Figure 1.This reality
By the novel system producing glycine, described glycine preparation facilities obtain the alkali gold containing glycine
Belonging to the aqueous solution of salt, described ion interchange unit is to carry out for the aqueous solution of the alkali metal salt containing glycine
Continuous ionic exchange reaction, ion interchange unit obtains thick glycine solution after processing, and thick glycine is water-soluble
Containing glycine, the alkali metal acid salt of iminodiacetic acid, nitrilotriacetic acid disalt and inorganic base metal in liquid
Salt etc., described thick glycine solution the most concentrated device A, crystallization apparatus A obtain glycine after processing
And glycine crystallization mother liquid, containing glycine, the alkali metal acid of iminodiacetic acid in glycine crystallization mother liquid
Formula salt, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc., glycine crystallization mother liquid enters back into chromatograph desalter
Carrying out desalting processing, the glycine solution obtained after desalting processing obtains glycine through concentration, crystallization again,
Also the thick glycine solution that can obtain with next round carries out follow-up operation after mixing again.
The system of production glycine of the present utility model, wherein enrichment facility A can be that any can realization concentrates
The equipment of function such as membrance concentration, MVR evaporation and concentration etc., it is possible to be the combination of the equipment of multiple tool concentrating function
MVR evaporation and concentration is carried out again as first passed through membrance concentration；Crystallization apparatus A can be that any can realization crystallizes merit
The equipment such as high temperature crystallization, low temperature crystallization, recrystallization etc. of energy, it is possible to be the equipment of multiple brilliant function of signing an undertaking
Combination such as first passes through high temperature crystallization and carries out low temperature crystallization etc. the most again.
Further, the described system producing glycine, described chromatograph desalter is logical also by material conveying
Road connects with described enrichment facility A, and the glycine crystallization mother liquid of gained enters back into chromatograph desalter and takes off
Salt treatment, the glycine solution obtained after desalting processing enters back in enrichment facility A by material conveying passage,
Can the most directly carry out follow-up operation, it is possible to the thick glycine solution obtained with next round enters after mixing again
The operation that row is follow-up.
Further, the described system producing glycine, between crystallization apparatus A and chromatograph desalter also
Crystalline mother solution storage device is set, described crystalline mother solution storage device also by material conveying passage with described dense
Compression apparatus A connects.Industrial generally by crystalline mother solution recycled, it is convenient that crystalline mother solution storage device is set
The deposit of crystalline mother solution, the most last round of crystalline mother solution may return to obtain with next round in enrichment facility A
Thick glycine solution mixing carry out recycled.But along with mother solution constantly circulates, by-product salt in mother solution
Class impurity content is also continuously increased, and when the mother solution of high content of salt carries out desalination, can be used for the tradition electricity of desalination
Osmotic technique and ion exchange technique are not suitable for.Therefore, system of the present utility model arranges chromatograph desalination dress
Put the desalination carrying out glycine crystallization mother liquid.
Further, the described system producing glycine, described glycine preparation facilities presses technique sequencing
Including the synthesis reactor set gradually and Basic fluxing raction device.Synthesis reactor is carried out with ammonia for hydroxyacetonitrile
Aminating reaction synthesizing amino acetonitrile, Basic fluxing raction device obtains the alkaline hydrolysis containing glycinate for aminoacetonitriles alkaline hydrolysis
Liquid.
Further, the described system producing glycine, described glycine preparation facilities Basic fluxing raction device it
After also set up ammonia excretion and ammonia recycling device.After Basic fluxing raction, containing having neither part nor lot in reaction in Basic fluxing raction device
Ammonia, got rid of and recycling by ammonia excretion and ammonia recycling device.
Further, the described system producing glycine, described synthesis reactor is provided with the charging of raw material ammonia
Pipe and the feed pipe of hydroxyacetonitrile.
Further, the described system producing glycine, described Basic fluxing raction device is provided with the feed pipe of alkali liquor
With the discharge nozzle of the ammonia complete for unreacted, described discharge nozzle is connected with ammonia excretion and ammonia recycling device.
Further, the described system producing glycine, between ion interchange unit and enrichment facility A also
It is provided with decoloration device.The industrial aqueous solution containing amino acid whose alkali metal salt typically contains the most miscellaneous
Matter, affects the colourity of final products, and the thick glycine solution obtained after ion interchange unit processes is dense
Can first decolour between sheepshank crystalline substance.
Further, the described system producing glycine, described decoloration device is preferably film decolouring.
Further, the described system producing glycine, described system is also disposed be connected dense
Compression apparatus B, acidizing device, crystallization apparatus B, described chromatograph desalter passes through the same institute of material conveying passage
Stating enrichment facility B to connect, described acidizing device is provided with the feed pipe of acid solution.Glycine crystallization mother liquid enters
Chromatograph desalter carries out desalting processing, the glycine solution obtained after desalting processing and the solution of saliferous, sweet
Propylhomoserin solution enters back in enrichment facility A by material conveying passage, can the most directly carry out follow-up operation,
Also the thick glycine solution that can obtain with next round carries out follow-up operation after mixing again.In the solution of saliferous
Mainly contain the alkali metal acid salt of iminodicarboxylic acid, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc., its
The alkali metal acid salt content of middle iminodicarboxylic acid is higher, is led to by material conveying passage by the solution of saliferous
Entering in enrichment facility B and concentrate, the most acidified device is acidified, and crystallization apparatus B crystallization obtains imino group
Oxalic acid, iminodiacetic acid crystalline mother solution may return to recycled in enrichment facility B, it is possible to enters it
The device that he is arranged is used for reclaiming inorganic salt therein.
Further, the described system producing glycine, described system is additionally provided with inorganic salt recycling treatment
Device, described inorganic salt processing means is connected with ion interchange unit and crystallization apparatus B respectively.
Further, the described system producing glycine, each element in system is all by material pipe even
Connect.
Beneficial effects of the present invention:
The system of production glycine of the present utility model, is included the glycine set gradually by technique sequencing
Preparation facilities, ion interchange unit, enrichment facility A, crystallization apparatus A and chromatograph desalter.This system
Easily operated, environmental friendliness, can the isolated and purified glycine of serialization, it is possible to achieve industrialization connects on a large scale
Continuous metaplasia is produced, it is possible to well realizes glycine and (includes the alkali of iminodiacetic acid with byproduct salt impurity
Metal acid salt, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc.) separation, yield is high, improves glycine
Product quality.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the present invention provides such as
Lower accompanying drawing illustrates:
Fig. 1 is the system structure schematic diagram that embodiment 1 produces glycine.
Fig. 2 is the system structure schematic diagram that embodiment 2 produces glycine.
Fig. 3 is that embodiment 3 utilizes the system producing glycine to carry out the flow chart schematic diagram of glycine production.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
Embodiment 1
As it is shown in figure 1, the system of production glycine of the present utility model, include successively by technique sequencing
Glycine preparation facilities 1, ion interchange unit 2, enrichment facility A3, crystallization apparatus A4 and the chromatograph arranged
Desalter 5.The system of production glycine of the present utility model, is obtained by described glycine preparation facilities 1
To the aqueous solution of the alkali metal salt containing glycine, described ion interchange unit 2 is for containing glycine
The aqueous solution of alkali metal salt carries out continuous ionic exchange reaction, and ion interchange unit 2 obtains thick sweet ammonia after processing
Aqueous acid, containing glycine, the alkali metal acid salt of iminodicarboxylic acid, ammonia in thick glycine solution
Triacetic acid disalt and inorganic alkaline metal salt etc., described thick glycine solution the most concentrated device A3, crystallization
Device A4 process after obtain glycine and glycine crystallization mother liquid, in glycine crystallization mother liquid containing glycine,
The alkali metal acid salt of iminodicarboxylic acid, nitrilotriacetic acid disalt and inorganic alkaline metal salt etc., glycine crystallization
Mother solution enters back into chromatograph desalter 5 and carries out desalting processing, obtains glycine solution and saliferous after desalting processing
Solution.
Embodiment 2
As in figure 2 it is shown, a kind of system producing glycine, by technique sequencing include setting gradually sweet
Propylhomoserin preparation facilities 1, ion interchange unit 2, enrichment facility A3, crystallization apparatus A4 and chromatograph desalter
5, described chromatograph desalter 5 connects with described enrichment facility A3 also by material conveying passage.
The described system producing glycine, also sets up knot between crystallization apparatus A4 and chromatograph desalter 5
Brilliant mother solution storage device 6, described crystalline mother solution storage device 6 also by material conveying passage with described concentration
Device A3 connects.Industrial generally by crystalline mother solution recycled, crystalline mother solution storage device 6 convenience is set
The deposit of crystalline mother solution.
Described glycine preparation facilities 1 is included synthesis reactor 11 and the alkali set gradually by technique sequencing
Solve reactor 12.Described glycine preparation facilities 1 also sets up ammonia excretion and ammonia after Basic fluxing raction device 12
Retracting device 13.Synthesis reactor 11 carries out aminating reaction synthesizing amino acetonitrile for hydroxyacetonitrile and ammonia,
Described synthesis reactor 11 is provided with the feed pipe 111 of raw material ammonia and the feed pipe 112 of hydroxyacetonitrile.Alkaline hydrolysis
Reactor 12 obtains the alkali solution liquid containing glycinate for aminoacetonitriles alkaline hydrolysis, and described Basic fluxing raction device 12 sets
It is equipped with the feed pipe 121 of alkali liquor and for the discharge nozzle 122 of the complete ammonia of unreacted, described discharge nozzle 122 and row
Ammonia and ammonia recycling device 13 are connected.After Basic fluxing raction, anti-containing having neither part nor lot in Basic fluxing raction device 12
The ammonia answered, is got rid of and recycling by ammonia excretion and ammonia recycling device 13.
The described system producing glycine, is additionally provided with between ion interchange unit 2 and enrichment facility A3
Decoloration device 7.The industrial aqueous solution containing amino acid whose alkali metal salt typically contains a lot of impurity,
Affecting the colourity of final products, the thick glycine solution obtained after ion interchange unit 2 processes is concentrating
Can first decolour between crystallization.
The described system producing glycine, described system is also disposed with the enrichment facility being connected
B8, acidizing device 9, crystallization apparatus B10, described chromatograph desalter 5 passes through material conveying passage with described
Enrichment facility B8 connects, and described acidizing device 9 is provided with the feed pipe 91 of acid solution.Glycine crystallization mother liquid
Enter chromatograph desalter 5 and carry out desalting processing, the glycine solution that obtains after desalting processing and saliferous molten
Liquid, glycine solution enters back in enrichment facility A3 by material conveying passage, can the most directly carry out follow-up
Operation, it is possible to the thick glycine solution obtained with next round carries out follow-up operation after mixing again.Saliferous
Solution in mainly contain the alkali metal acid salt of iminodicarboxylic acid, nitrilotriacetic acid disalt and inorganic base metal
Salt etc., wherein the alkali metal acid salt content of iminodicarboxylic acid is higher, and the solution of saliferous is defeated by material
Sending passage to be passed through in enrichment facility B8 to concentrate, the most acidified device 9 is acidified, crystallization apparatus B10
Crystallization obtains iminodiacetic acid, and iminodiacetic acid crystalline mother solution may return to circulating sleeve in enrichment facility B8
With, it is possible to it is directly entered other devices arranged for reclaiming inorganic salt therein.
The described system producing glycine, described system is additionally provided with inorganic salt recycling treatment device 11,
Described inorganic salt processing means 11 is connected with ion interchange unit 2 and crystallization apparatus B10 respectively.
The described system producing glycine, each element in system is all connected by material pipe.
Embodiment 3 produces the using method of the system of glycine
1) ammonification: hydroxyacetonitrile 543.0g (42%, 4.0mol) is added in feed pipe 112 and pumps into synthesis
In reactor 11, ammonia 544g (25%, 8.0mol) adds in feed pipe 111 and pumps into synthesis reactor
In 11, two kinds of liquid carry out aminating reaction under conditions of temperature is 100-103 DEG C, are adjusted by coutroi velocity
The joint response time is 7 minutes, it is thus achieved that aminoacetonitriles and the mixed solution of Iminodiacetonitrile 1,1'-Imidodiacetonitrile.
2) alkaline hydrolysis: add 351.8g hydroxide beforehand through alkali liquor feed pipe 121 in Basic fluxing raction device 12
Sodium solution (50%, 4.4mol), aminoacetonitriles and Iminodiacetonitrile 1,1'-Imidodiacetonitrile are collected in the outlet in synthesis reactor 11
Reactant liquor imports in Basic fluxing raction device 12, and reactant liquor carries out alkaline hydrolysis immediately under conditions of temperature is 80-85 DEG C
Reaction, while Basic fluxing raction, present in reaction system, ammonia enters ammonia excretion by ammonia discharge nozzle and ammonia returns
In receiving apparatus 13, after treating that aminoacetonitriles and Iminodiacetonitrile 1,1'-Imidodiacetonitrile reactant liquor are all collected, continue above-mentioned
React 3 hours under reaction condition, it is thus achieved that the aqueous solution 1280g containing Glycine sodium, water-soluble containing Glycine sodium
In liquid, Glycine sodium and iminodiacetic acid disodium salt content are respectively 12.35% He by percentage to the quality
16.38%, in addition, possibly together with about 1% sodium hydroxide, the sodium ammonium triacetate of about 0.2% and a small amount of NH3。
By the temperature in ammonia excretion and ammonia recycling device 13 of the aqueous solution containing Glycine sodium be 95 DEG C, pressure be
Ammonia excretion process is carried out under conditions of-0.09MPa, when the free ammonia content to reactant liquor is less than 0.5%, with
Time will discharge recovery ammonia.
3) ion-exchange treatment: the aqueous solution Glycine sodium clear liquid containing Glycine sodium after ammonia excretion is passed through ion
In switch 2, it is passed through soft water and regeneration aqueous sulfuric acid simultaneously, carries out ion exchange, obtain the sweetest
Propylhomoserin solution and metabisulfite solution, in thick glycine solution containing glycine, iminodiacetic acid one sodium salt,
Nitrilotriacetic acid disodium salt salt and sodium sulfate.Metabisulfite solution enters and reclaims inorganic salt in inorganic salt processing means 11.
4) decolouring: the thick glycine solution obtained is passed through in decoloration device 7 and carries out desolventing technology.
5) condensing crystallizing: the thick glycine solution after desolventing technology, is transferred to enrichment facility A3 and carries out dense
Contracting processes, and being concentrated into the mass percentage concentration of glycine is that 40-45% is passed through in crystallization apparatus A4 and crystallizes,
Obtain Glycine crystals and glycine crystallization mother liquid (except containing not being fully crystallized in glycine crystallization mother liquid
Glycine, possibly together with iminodiacetic acid one sodium salt, nitrilotriacetic acid disodium salt salt and sodium sulfate), Glycine crystals
Wet product obtains product after drying, and glycine crystallization mother liquid is passed through crystalline mother solution storage device 6, crystalline mother solution deposit
Glycine crystallization mother liquid in device 6 can take off by entering back into chromatograph after recycled in entrance enrichment facility A3
Salt device 5 carries out desalting processing, it is possible to be directly entered in chromatograph desalter 5 and carry out desalting processing.With
The continuous circulation of crystalline mother solution, glycine therein and salt impurity content are also gradually increased.
6) chromatograph desalination: when containing glycine 10-30%, iminodiacetic acid one in glycine crystallization mother liquid
Sodium salt 2.5-12%, nitrilotriacetic acid disodium salt salt 0.1-1.0%, can be directly entered chromatograph during sodium sulfate 0.5-4.0%
Desalter 5 carries out desalting processing, when in glycine crystallization mother liquid, content of material, higher than above-mentioned scope, can be fitted
After being diluted, enter back into chromatograph desalter 5 carry out desalting processing.Glycine crystallization mother liquid enters chromatograph
Desalter 5 carries out desalting processing, obtains the solution of glycine solution and saliferous, at desalination after desalting processing
The glycine solution obtained after reason enters back in enrichment facility A3 by material conveying passage, can the most directly enter
The operation that row is follow-up, it is possible to the thick glycine solution obtained with next round carries out follow-up operation after mixing again.
7) post processing of salt: mainly contain iminodiacetic acid one sodium salt and a small amount of ammonia three in the solution of saliferous
Acetic acid disodium salt and sodium sulfate, be passed through the solution of saliferous in enrichment facility B8 by material conveying passage and carry out
Concentrate, then pass to, in acidizing device 9, from the feed pipe 91 of acid solution, be passed through acid be acidified, then enter
Entering crystallization in crystallization apparatus B10 and obtain iminodiacetic acid, iminodiacetic acid crystalline mother solution may return to dense
Recycled in compression apparatus B8, or it is directly entered in inorganic salt processing means 11 recovery inorganic salt.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted,
Although being described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the art should manage
Solve, technical scheme can be modified or equivalent, without deviating from the technology of the present invention side
The objective of case and scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (11)
1. the system producing glycine, it is characterised in that include setting gradually by technique sequencing
Glycine preparation facilities (1), ion interchange unit (2), enrichment facility A (3), crystallization apparatus A (4)
With chromatograph desalter (5).
The system of production glycine the most according to claim 1, it is characterised in that described chromatograph desalination
Device (5) connects with described enrichment facility A (3) also by material conveying passage.
The system of production glycine the most according to claim 1, it is characterised in that at crystallization apparatus A
And between chromatograph desalter (5), also set up crystalline mother solution storage device (6), described crystalline mother solution (4)
Storage device (6) connects with described enrichment facility A (3) also by material conveying passage.
The system of production glycine the most according to claim 1, it is characterised in that described glycine system
Standby device (1) is included synthesis reactor (11) and the Basic fluxing raction device (12) set gradually by technique sequencing.
The system of production glycine the most according to claim 4, it is characterised in that described glycine system
Standby device (1) also sets up ammonia excretion and ammonia recycling device (13) after Basic fluxing raction device (12).
The system of production glycine the most according to claim 4, it is characterised in that described synthetic reaction
Device (11) is provided with the feed pipe (111) of raw material ammonia and the feed pipe (112) of hydroxyacetonitrile.
The system of production glycine the most according to claim 4, it is characterised in that described Basic fluxing raction
Device (12) is provided with the feed pipe (121) of alkali liquor and for the discharge nozzle (122) of the complete ammonia of unreacted, described
Discharge nozzle (122) is connected with ammonia excretion and ammonia recycling device (13).
The system of production glycine the most according to claim 1, it is characterised in that at ion exchange dress
Put and between (2) and enrichment facility A (3), be additionally provided with decoloration device (7).
The system of production glycine the most according to claim 1, it is characterised in that described system is also
Be disposed be connected enrichment facility B (8), acidizing device (9), crystallization apparatus B (10), described
Chromatograph desalter (5) is connected with described enrichment facility B (8) by material conveying passage, described acidifying
Device (9) is provided with the feed pipe (91) of acid solution.
The system of production glycine the most according to claim 9, it is characterised in that described system is also
Being provided with inorganic salt recycling treatment device (11), described inorganic salt processing means (11) exchanges with ion respectively
Device (2) and crystallization apparatus B (10) connect.
11. according to the system producing glycine described in any one of claim 1-10, it is characterised in that be
Each element in system is all connected by material pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427675.9U CN205774222U (en) | 2016-05-12 | 2016-05-12 | Produce the system of glycine |
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| CN201620427675.9U CN205774222U (en) | 2016-05-12 | 2016-05-12 | Produce the system of glycine |
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| CN205774222U true CN205774222U (en) | 2016-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325015A (en) * | 2017-08-15 | 2017-11-07 | 阳泉煤业（集团）有限责任公司 | A kind of method that hydroxyacetonitrile serialization prepares glycine |
| CN113563215A (en) * | 2021-07-30 | 2021-10-29 | 上海蓝科石化环保科技股份有限公司 | Production process of glycine |
-
2016
- 2016-05-12 CN CN201620427675.9U patent/CN205774222U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325015A (en) * | 2017-08-15 | 2017-11-07 | 阳泉煤业（集团）有限责任公司 | A kind of method that hydroxyacetonitrile serialization prepares glycine |
| CN107325015B (en) * | 2017-08-15 | 2020-03-17 | 阳泉煤业（集团）有限责任公司 | Method for continuously preparing glycine from hydroxyacetonitrile |
| CN113563215A (en) * | 2021-07-30 | 2021-10-29 | 上海蓝科石化环保科技股份有限公司 | Production process of glycine |
| CN113563215B (en) * | 2021-07-30 | 2024-02-02 | 上海蓝科石化环保科技股份有限公司 | Glycine production process |
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