CN107556391A - The production technology of hydroxyethyl cellulose - Google Patents
The production technology of hydroxyethyl cellulose Download PDFInfo
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- CN107556391A CN107556391A CN201610504615.7A CN201610504615A CN107556391A CN 107556391 A CN107556391 A CN 107556391A CN 201610504615 A CN201610504615 A CN 201610504615A CN 107556391 A CN107556391 A CN 107556391A
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- hydroxyethyl cellulose
- production technology
- alkalized
- cellulose
- desalination
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Abstract
The present invention provides a kind of production technology of hydroxyethyl cellulose, and it comprises the following steps：S1, reaction raw materials are provided, cellulose powder is refined by the reaction raw materials of offer；S2, the cellulose powder of refinement alkalized successively, is etherified, will be alkalized, the mixed solution of etherificate carries out neutralisation treatment；S3, it is neutralized after mixed solution washing desalination, by wash desalination after solution dry；S4, the solids obtained after drying is crushed, obtain the hydroxyethyl cellulose.The production technology of hydroxyethyl cellulose of the present invention has the advantages of technique is simple, efficiency is higher, and it avoids producing accessory substance, raw material availability is high while hydroxyethyl cellulose.The production technology of hydroxyethyl cellulose of the present invention fully meets the needs of modernization industry production, achieves preferable economic benefit and environmental benefit.
Description
Technical field
The present invention relates to a kind of production technology, more particularly to a kind of production technology of hydroxyethyl cellulose.
Background technology
Hydroxyethyl cellulose (HEC) is a kind of white or faint yellow, tasteless, nontoxic threadiness or pulverulent solids, its
Belong to nonionic soluble fibre element ethers.Because HEC has good thickening, suspension, scattered, emulsification, bonding, film forming, protection
The characteristic such as moisture and offer protecting colloid, has been widely used in oil exploitation, coating, building, medicine food, weaving, papermaking
And the field such as macromolecular polymerization reaction.However, the production technology of current hydroxyethyl cellulose is complex, and inadequate ring
Protect, can not fully meet the needs of modernization industry production.
Therefore, in view of the above-mentioned problems, being necessary to propose further solution.
The content of the invention
It is an object of the invention to provide a kind of production technology of hydroxyethyl cellulose, to overcome present in prior art
Problem.
For achieving the above object, the present invention provides a kind of production technology of hydroxyethyl cellulose, and it includes following step
Suddenly：
S1, reaction raw materials are provided, cellulose powder is refined by the reaction raw materials of offer；
S2, the cellulose powder of refinement alkalized successively, is etherified, will be alkalized, the mixed solution of etherificate is carried out at neutralization
Reason；
S3, it is neutralized after mixed solution washing desalination, by wash desalination after solution dry；
S4, the solids obtained after drying is crushed, obtain the hydroxyethyl cellulose.
2. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that in the step S1,
The reaction raw materials are high-purity wood pulp or gossypin.
As the improvement of the production technology of the hydroxyethyl cellulose of the present invention, in the step S2, to the cellulose of refinement
Sodium hydroxide solution is added in powder to be alkalized.
As the improvement of the production technology of the hydroxyethyl cellulose of the present invention, in the step S2, to the fiber after alkalization
Oxirane is added in plain powder to be alkalized.
As the improvement of the production technology of the hydroxyethyl cellulose of the present invention, epoxy is added into the cellulose powder after alkalization
After ethane, it is 42~55 DEG C to control temperature, reacts 2~3h.
As the improvement of the production technology of the hydroxyethyl cellulose of the present invention, in the step S3, after washing desalination
Before solution is dried, in addition to：Solution after washing desalination is subjected to centrifugal treating.
As the improvement of the production technology of the hydroxyethyl cellulose of the present invention, also include in the step S3：After neutralization
Mixed solution washing desalination solvent reclaimed.
Compared with prior art, the beneficial effects of the invention are as follows：The production technology of hydroxyethyl cellulose of the present invention has work
The advantages of skill is simple, efficiency is higher, it avoids producing accessory substance, raw material availability is high while hydroxyethyl cellulose.This hair
The production technology of bright hydroxyethyl cellulose fully meets the needs of modernization industry production, achieves preferable economic benefit and ring
Border benefit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow schematic diagram of the embodiment of production technology one of the hydroxyethyl cellulose of the present invention.
Embodiment
The present invention provides a kind of production technology of hydroxyethyl cellulose, and it comprises the following steps：
S1, reaction raw materials are provided, cellulose powder is refined by the reaction raw materials of offer；
S2, the cellulose powder of refinement alkalized successively, is etherified, will be alkalized, the mixed solution of etherificate is carried out at neutralization
Reason；
S3, it is neutralized after mixed solution washing desalination, by wash desalination after solution dry；
S4, the solids obtained after drying is crushed, obtain the hydroxyethyl cellulose.
The present invention is described in detail for shown each embodiment below in conjunction with the accompanying drawings, but it should explanation, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiment institute work energy, method,
Or equivalent transformation or replacement in structure, belong within protection scope of the present invention.
As shown in figure 1, the present invention provides a kind of production technology of hydroxyethyl cellulose, it comprises the following steps：
S1, reaction raw materials are provided, cellulose powder is refined by the reaction raw materials of offer.
In the step S1, the reaction raw materials are high-purity wood pulp or gossypin.
S2, the cellulose powder of refinement alkalized successively, is etherified, will be alkalized, the mixed solution of etherificate is carried out at neutralization
Reason.
In the step S2, the alkalization, etherificate are carried out as follows：
Sodium hydroxide solution is added into the cellulose powder of refinement to be alkalized.Further, to the cellulose after alkalization
Oxirane is added in powder to be alkalized.Wherein, after adding oxirane into the cellulose powder after alkalization, it is 42 to control temperature
~55 DEG C, react 2~3h.
S3, it is neutralized after mixed solution washing desalination, by wash desalination after solution dry.
In the step S3, before the solution after washing desalination is dried, in addition to：Solution after washing desalination is carried out
Centrifugal treating.In addition, also include in the step S3：The solvent of mixed solution washing desalination after neutralization is reclaimed.
S4, the solids obtained after drying is crushed, obtain the hydroxyethyl cellulose.
In summary, the production technology of hydroxyethyl cellulose of the present invention has the advantages of technique is simple, efficiency is higher, its
While hydroxyethyl cellulose, avoid producing accessory substance, raw material availability is high.The production technology of hydroxyethyl cellulose of the present invention is filled
Divide and meet the needs of modernization industry production, achieve preferable economic benefit and environmental benefit.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of production technology of hydroxyethyl cellulose, it is characterised in that the production technology of the hydroxyethyl cellulose is included such as
Lower step：
S1, reaction raw materials are provided, cellulose powder is refined by the reaction raw materials of offer；
S2, the cellulose powder of refinement alkalized successively, is etherified, will be alkalized, the mixed solution of etherificate carries out neutralisation treatment；
S3, it is neutralized after mixed solution washing desalination, by wash desalination after solution dry；
S4, the solids obtained after drying is crushed, obtain the hydroxyethyl cellulose.
2. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that described in the step S1
Reaction raw materials are high-purity wood pulp or gossypin.
3. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that in the step S2, to carrying
Sodium hydroxide solution is added in the cellulose powder of refining to be alkalized.
4. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that in the step S2, to alkali
Oxirane is added in cellulose powder after change to be alkalized.
5. the production technology of hydroxyethyl cellulose according to claim 4, it is characterised in that to the cellulose powder after alkalization
After middle addition oxirane, it is 42~55 DEG C to control temperature, reacts 2~3h.
6. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that in the step S3, will wash
Before washing the drying of the solution after desalination, in addition to：Solution after washing desalination is subjected to centrifugal treating.
7. the production technology of hydroxyethyl cellulose according to claim 1, it is characterised in that also wrapped in the step S3
Include：The solvent of mixed solution washing desalination after neutralization is reclaimed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504615.7A CN107556391A (en) | 2016-06-30 | 2016-06-30 | The production technology of hydroxyethyl cellulose |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504615.7A CN107556391A (en) | 2016-06-30 | 2016-06-30 | The production technology of hydroxyethyl cellulose |
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| CN107556391A true CN107556391A (en) | 2018-01-09 |
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| CN201610504615.7A Pending CN107556391A (en) | 2016-06-30 | 2016-06-30 | The production technology of hydroxyethyl cellulose |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424465A (en) * | 2018-05-03 | 2018-08-21 | 高密银鹰新材料股份有限公司 | A kind of preparation method of hydroxyethyl cellulose |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190948A (en) * | 2006-11-20 | 2008-06-04 | 湖北祥泰纤维素有限公司 | Liquid phase synthesis technique for ultra-low viscosity hydroxyethyl cellulose |
| CN101250230A (en) * | 2008-03-10 | 2008-08-27 | 江苏飞翔化工股份有限公司 | Method for preparing hydroxyethyl cellulose |
| CN102060931A (en) * | 2010-12-15 | 2011-05-18 | 北京理工大学 | Hydroxyethyl cellulose and preparation method thereof |
-
2016
- 2016-06-30 CN CN201610504615.7A patent/CN107556391A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190948A (en) * | 2006-11-20 | 2008-06-04 | 湖北祥泰纤维素有限公司 | Liquid phase synthesis technique for ultra-low viscosity hydroxyethyl cellulose |
| CN101250230A (en) * | 2008-03-10 | 2008-08-27 | 江苏飞翔化工股份有限公司 | Method for preparing hydroxyethyl cellulose |
| CN102060931A (en) * | 2010-12-15 | 2011-05-18 | 北京理工大学 | Hydroxyethyl cellulose and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424465A (en) * | 2018-05-03 | 2018-08-21 | 高密银鹰新材料股份有限公司 | A kind of preparation method of hydroxyethyl cellulose |
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Application publication date: 20180109 |