CN105754008A - Ammonium alginate production process - Google Patents
Ammonium alginate production process Download PDFInfo
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- CN105754008A CN105754008A CN201511024148.XA CN201511024148A CN105754008A CN 105754008 A CN105754008 A CN 105754008A CN 201511024148 A CN201511024148 A CN 201511024148A CN 105754008 A CN105754008 A CN 105754008A
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- CN
- China
- Prior art keywords
- ammonium
- alginate
- alginic acid
- ammonium alginate
- ammonium salt
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
Abstract
The invention provides an ammonium alginate production process.The ammonium alginate production process includes steps: (1) performing alkali digestion of brown algae to prepare alginic acid; (2) adding the alginic acid and a certain quantity of a composite ammonium salt into a neutralization reactor to react for 50-70min until the alginic acid and the composite ammonium salts are completely neutralized to form ammonium alginate, wherein neutralization reaction includes solid-phase neutralization reaction and liquid-phase neutralization reaction with ethyl alcohol serving as a medium; consumption of the composite ammonium salt is 7-15% of that of the alginic acid; the composite ammonium salt is composed of ammonium chloride and an alkaline ammonium salt, and a ratio of the ammonium chloride to the alkaline ammonium salt is 10-20:80-90; the alkaline ammonium salt comprises one or two of ammonium carbonate and ammonium hydroxide; (3) performing centrifuging, plunger extruding granulation, drying and grinding to obtain ammonium alginate in required meshes.The ammonium alginate prepared according to the process is 100-2000mPa.s in viscosity, 40-320 in mesh number, 6.0-8.0 in pH value, smaller than or equal to 15.0% in moisture content and 14-28% in ash content.In addition, the ammonium alginate production process can be implemented under the condition of existing sodium alginate solid-phase and liquid-phase neutralization production technology.
Description
Technical field
The present invention relates to the production technology of a kind of ammonium alginate.
Background technology
Ammonium alginate is a kind of natural polysaecharides material made through the digestion technique such as extraction of frond.Alginate product common on market includes the divalent metal salt (demagging and hydrargyrum are outer) of the alginic acid such as the monoacidic base slaine of the alginic acid such as water miscible sodium alginate, potassium alginate and water-insoluble calcium alginate.Above-mentioned common alginate manufacturer is many, product specification is complete and application and development is also relatively broad.Ammonium alginate is a kind of emerging alginate, and the alginate product that the characteristic of product is also known from other has bigger different.Ammonium alginate is widely used as medical auxiliary materials abroad, and heart, cardiovascular disease are had positive effect by it.In recent years, owing to external alginate product price is high, a lot of external alginate purchasers begin at China and find the alginate product meeting our company's instructions for use, and the order of ammonium alginate initially enters China.
Domestic at present rarely have enterprise to produce ammonium alginate, the production technology of ammonium alginate is immature, the production technology of conventional ammonium alginate, can exist neutralization reaction not exclusively, the response time long, the inhomogenous drawback of finished product, and owing to ammonium alginate self is astringent, in actual production cannot pelletize, follow-up pulverizing process is brought very big resistance by this.
Produce the present situation of ammonium alginate for prior art, we pass through interpolation ammonium salt compound and substitute single magnesium salt, solve to neutralize and react incomplete, the inhomogenous shortcoming of product；We adopt ram extrusion press that ammonium alginate carries out pelletize, solve tradition comminutor cannot the problem of pelletize, wherein ram extrusion press carries automatic disconnecting device.
Summary of the invention
The present invention is directed to ammonium alginate present situation, invent the production technology of a kind of ammonium alginate.The interpolation of the ammonium salt compound of ammonium chloride and basic ammonium salts composition in the present invention so that neutralize reaction more homogeneous, complete, rapid.This is owing to adding part solubility ammonium chloride, in course of reaction, it is ensured that the supply of free state magnesium ion so that ammonium alginate finished product is homogeneous, stable.The present invention adopts ram extrusion press granulating technique, and solving tradition comminutor cannot the shortcoming of pelletize, it is simple to the follow-up crushed work of ammonium alginate.In addition liquid phase of the present invention neutralizes owing to the addition of ethanol so that end product color and luster is whiter, impurity content is low, content of microorganisms is low, quality is higher, product is more stable.
In order to realize foregoing invention purpose, the present invention adopts following technical proposals to be achieved:
The production technology of a kind of ammonium alginate, said method comprising the steps of:
(1) Brown algae alkali digestion prepares alginic acid；
(2) alginic acid and a certain amount of ammonium salt compound are joined in neutralization reactor, react 50-75 minute, be neutralized to and be fully converted to ammonium alginate, wherein, neutralize reaction include solid phase neutralize and with ethanol for the liquid phase of medium and reaction；
(3) consumption of ammonium salt compound is the 7%-15% of alginic acid；
(4) ammonium salt compound is made up of ammonium chloride and basic ammonium salts, ammonium chloride: basic ammonium salts=10-20:80-90；
(5) basic ammonium salts include ammonium carbonate, ammonium hydroxide one or both；
(6) sliding cylinder extrusion pelletize, dry, be crushed to the ammonium alginate of required order number requirement.
Technical scheme being improved further: the mass percent of described step (1) alkali is 12%-15%, digestion temperature is 60 DEG C-65 DEG C；
Technical scheme is improved further: in described step (2) liquid phase, the alcoholic strength with ethanol is 60-85。；
Technical scheme is improved further: after described step (6) sliding cylinder extrusion pelletize, the moisture of ammonium alginate is between 40%-45%.
Technical scheme is improved further: the viscosity of the ammonium alginate in described step (6) is at 100-2000mPa.s, order number 40-320 order, pH value 6.0-8.0, moisture≤15.0%, ash 14-28%.
Compared with prior art, advantages of the present invention and having the benefit effect that
(1) in the present invention and reaction ammonium salt compound interpolation so that neutralize reaction homogeneous, complete, rapid, ensured homogeneity and the stability of product, shortened the production cycle, improve production efficiency.
(2) in the present invention and reaction include solid phase and liquid phase two ways, wherein in liquid phase and time ethanol there is the extraction effect such as pigment, sterilization, decontamination, it is possible to preparation high-quality high-viscosity alginate.
(3) in the present invention in liquid phase and time, the use of ethanol, it is also possible to make gained material volumetric expansion, it is easy to follow-up pulverizing.
(4) present invention centrifugal after, adopt sliding cylinder extrusion granulating technique, solve tradition comminutor cannot shortcoming, it is simple to the follow-up crushed work of ammonium alginate.
(5) present invention process is simple, adopts the method for the invention can complete under the working condition of existing Algin, does not need to increase extras.
Specific embodiment
Below in conjunction with detailed description of the invention, technical scheme is described in further detail.
Embodiment 1
Take without rotten Thallus Laminariae (Thallus Eckloniae) leaching 2h, chopping, washing, fixation, 12% soda digestion 6h, coarse filtration, foaming, floating, filtrations, dilution, calcification, acidifying decalcification, washing, press dewatering, the prepared alginic acid of pulverizing.Take 100kg alginic acid, the ammonium salt compound of 7% alginic acid weight, put in solid phase neutralizing tank, react 50min, detect every 10min universal indicator during production, according to the color that indicator shows, it is judged that reaction end.The material that will react completely, is centrifuged, extrudes, dries, be ground into the material of 40 orders, and the adhesiveness of the material 1% after pulverizing is 100mPa.s, pH value 6.0, moisture 15.0%, ash 14%.
Embodiment 2
Take without rotten Thallus Laminariae (Thallus Eckloniae) leaching 2h, chopping, washing, fixation, 12% soda digestion 6h, coarse filtration, foaming, floating, filtrations, dilution, calcification, acidifying decalcification, washing, press dewatering, the prepared alginic acid of pulverizing.Take 100kg alginic acid, the ammonium salt compound of 15% alginic acid weight, put in solid phase neutralizing tank, react 75min, detect every 10min universal indicator during production, according to the color that indicator shows, it is judged that reaction end.The material that will react completely, is centrifuged, extrudes, dries, be ground into the material of 220 orders, and the adhesiveness of the material 1% after pulverizing is 2000mPa.s, pH value 8.0, moisture 12.9%, ash 28%.
Embodiment 3
Take without rotten Thallus Laminariae (Thallus Eckloniae) leaching 2h, chopping, washing, fixation, 12% soda digestion 6h, coarse filtration, foaming, floating, filtrations, dilution, calcification, acidifying decalcification, washing, press dewatering, the prepared alginic acid of pulverizing.Take 100kg alginic acid, put in the neutralizing tank of the ammonium salt compound adding 60%vol and 10% alginic acid weight in advance, react 60min, detect every 10min universal indicator during production, according to the color that indicator shows, it is judged that reaction end.The material that will react completely, is centrifuged, extrudes, dries, be ground into the material of 320 orders, and the adhesiveness of the material 1% after pulverizing is 980mPa.s, pH value 6.9, moisture 13.1%, ash 21%.
Embodiment 4
Take without rotten Thallus Laminariae (Thallus Eckloniae) leaching 2h, chopping, washing, fixation, 12% soda digestion 6h, coarse filtration, foaming, floating, filtrations, dilution, calcification, acidifying decalcification, washing, press dewatering, the prepared alginic acid of pulverizing.Take 100kg alginic acid, put into and add 60 in advance.In the neutralizing tank of the ammonium salt compound of ethanol and 12% alginic acid weight, react 70min, detect every 10min universal indicator during production, according to the color that indicator shows, it is judged that reaction end.The material that will react completely, is centrifuged, extrudes, dries, be ground into the material of 320 orders, and the adhesiveness of the material 1% after pulverizing is 1450mPa.s, pH value 7.5, moisture 12.7%, ash 26%.
Claims (5)
1. the production technology of an ammonium alginate.It is characterized in that, its step is as follows:
(1) Brown algae alkali digestion prepares alginic acid；
(2) alginic acid and a certain amount of ammonium salt compound are joined in neutralization reactor, react 50-75 minute, be neutralized to and be fully converted to ammonium alginate, wherein, neutralize reaction include solid phase neutralize and with ethanol for the liquid phase of medium and reaction；
(3) consumption of ammonium salt compound is the 7%-15% of alginic acid；
(4) ammonium salt compound is made up of ammonium chloride and basic ammonium salts, ammonium chloride: basic ammonium salts=10-20:80-90；
(5) basic ammonium salts include ammonium carbonate, ammonium hydroxide one or both；
(6) centrifugal, sliding cylinder extrusion pelletize, dry, be crushed to the ammonium alginate of required order number requirement.
2. the production technology of a kind of ammonium alginate according to right 1, it is characterised in that: the mass percent of described step (1) alkali is 12%-15%, and digestion temperature is 60 DEG C-65 DEG C.
3. the production technology of a kind of ammonium alginate according to right 1, it is characterised in that: in described step (2) liquid phase, the alcoholic strength with ethanol is 60-85 °.
4. the production technology of a kind of ammonium alginate according to right 1, it is characterised in that: after described step (6) sliding cylinder extrusion pelletize, the moisture of ammonium alginate is between 40%-45%.
5. the production technology of a kind of ammonium alginate according to right 1, it is characterised in that: the viscosity of the ammonium alginate in described step (6) is at 100-2000mPa.s, order number 40-320 order, pH value 6.0-8.0, moisture≤15.0%, ash 14-28%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024148.XA CN105754008A (en) | 2015-12-30 | 2015-12-30 | Ammonium alginate production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024148.XA CN105754008A (en) | 2015-12-30 | 2015-12-30 | Ammonium alginate production process |
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| Publication Number | Publication Date |
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| CN105754008A true CN105754008A (en) | 2016-07-13 |
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| CN201511024148.XA Pending CN105754008A (en) | 2015-12-30 | 2015-12-30 | Ammonium alginate production process |
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Application publication date: 20160713 |