CN106631698A - Deodorizing method of hyperpure isopropanol - Google Patents
Deodorizing method of hyperpure isopropanol Download PDFInfo
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- CN106631698A CN106631698A CN201611271223.7A CN201611271223A CN106631698A CN 106631698 A CN106631698 A CN 106631698A CN 201611271223 A CN201611271223 A CN 201611271223A CN 106631698 A CN106631698 A CN 106631698A
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- isopropanol
- organic matter
- isopropyl alcohol
- thoroughly
- hyperpure
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention discloses a deodorizing method of hyperpure isopropanol. The method comprises the following steps: (1) hyperpure isopropanol is sent into a preferred permeable organic matter membrane separation device; (2) vacuumizing is conducted at a permeable side of the preferred permeable organic matter membrane separation device and the isopropanol selectively permeate the preferred permeable organic matter membrane separation device to be vaporized into isopropanol vapor; and (3) the isopropanol vapor is condensed to obtain isopropanol permeable liquid. The isopropanol permeable liquid is odourless isopropanol. The method is simple and effective, easy to operate, and designed to meet the deodorization requirement of the market to the isopropanol with a purity of 99.80% or more. Besides, the method avoids the use of organic solvents or other third party materials, realizes green extraction processes, is simple and effective in operation, low in energy consumption, and safe and environmentally protective, improves the deodorization effect and at the same time reduces costs.
Description
Technical field
The present invention relates to a kind of method of hyperpure isopropyl alcohol deodorization.
Background technology
Isopropanol is a kind of important industrial chemicals and organic solvent, and its purposes is quite varied, is mainly used in pharmacy, makes up
Product, plastics, spices, coating, surfactant, cleaning agent etc..Isopropanol also serves as the solvent of oil product and colloid, and for fish
In the manufacture of powder feed concentrate.It is to be contained in the food such as water fruits and vegetables, dairy products and drinks because isopropanol has special fragrance
One of natural component in product.Add and use for the products such as cold drink and candy reproduce fragrance using it in American-European countries.
Japan has formulated the standard that isopropanol is utilized as spices for 2004, it is intended that isopropanol is food spices.At present can be according to most
The isopropanol of whole purposes supply difference quality, the regular quality of anhydrous isopropyl alcohol is more than 99%, and private-use class isopropanol content
(for essence and medicine) more than 99.8%.For producing acetone, diisopropyl ether, isopropyl acetate and thymol etc..
Both at home and abroad the main method of production isopropanol is propylene hydration method, according to whether generating intermediate products, it can divide again
For two methods of propylene indirect hydration method and propylene direct hydration method.
Indirect hydration method exists and consumes that sulfuric acid amount is big, equipment corrosion is serious, high energy consumption the shortcomings of so as to development is limited
System, the technology is eliminated.
Direct hydration method is that one kind adopts highly active catalyst, and the new technology being adapted with environmental protection.The method gram
The shortcoming of indirect hydration method is taken, there is efficient, low consumption, short flow, be the Main way of current hydration development.Slightly
After aqueous isopropanol alkali process, the de- ether towers of Jing, azeotrope column, dehydrating tower, light, heavies column are refined, and just obtain high-purity isopropyl
Alcohol.
Even if however, up to 99.99% isopropanol in the market, it is to still suffer from uncomfortable stink, it is generally recognized that
May be from the impurity such as sulfide, ether, aldehyde.Therefore, domestic and international one period isopropanol deodorization, concentrate on sulfide removal such as sulphur
In the research of alcohol.Mercaptan is removed using PbO-NaOH, ZnO-NaOH and NaOH solution extracting, or is removed using CuX molecular sieves
Mercaptan, finally uses charcoal absorption.These methods can be reduced to 1ppm or so mercaptans content, but not remove at all so far different
The stink of propyl alcohol.Even if sulfur content drops to ppb levels, still so.
Therefore, the method for the isopropanol deodorization for carrying out at present, focuses primarily upon extractive distillation process, using amberlite
There is many deficiencies, such as complex operation, high energy consumption, absorption in the material absorbings such as fat, activated carbon, activated aluminum and sand, these methods
Agent be difficult regeneration, processing cost it is higher, there is secondary pollution etc..
The content of the invention
It is an object of the invention to provide a kind of method of hyperpure isopropyl alcohol deodorization, it is adaptable to hyperpure isopropyl alcohol stink it is de-
Remove, which simplify the requirement of Processes and apparatus, for hyperpure isopropyl alcohol, its deodorising effect is good, and energy consumption is low, and deodorising process will not
Bring secondary pollution.
For achieving the above object, the technical solution adopted in the present invention is as follows：
A kind of method of hyperpure isopropyl alcohol deodorization, comprises the following steps：
(1) hyperpure isopropyl alcohol is sent into into preferential organic matter film separator thoroughly；
(2) per-meate side in the preferential organic matter film separator thoroughly is vacuumized, and isopropanol selectively permeates logical
Cross the preferential organic matter film separator thoroughly and vaporization becomes IPA vapor；
(3) isopropanol penetrating fluid will be obtained after IPA vapor condensation, the isopropanol penetrating fluid is odorless isopropyl
Alcohol.
Preferably, the hyperpure isopropyl alcohol is mixture of the isopropanol content more than 99.80%.
Preferably, the preferential organic matter film thoroughly includes preferential organic matter film thoroughly, and the preferential organic matter film thoroughly is that have
The preferential particular functionality film through isopropanol.
Further, the material of the preferential organic matter film thoroughly includes organosilicon polymer, fluoropolymer, poly- amino first
Acid esters, Noryl, polyether amide block copolymer, cellulose acetate, hydrophobic nano-titanium dioxide, inorganic type molecular sieve or
One or more in inorganic ceramic are composited.
Further, the organosilicon polymer includes but is not limited to dimethyl silicone polymer, poly- trimethyl silicane propine, gathers
Vinyl trimethylsilane, polyvinyl dimethylsilane, polymethylacrylic acid trimethyl silane methyl esters and the silicon of poly- hexamethyl two
One or more in oxygen alkane.
Further, the fluoropolymer include but is not limited to polytetrafluoroethylene (PTFE), Kynoar, polyhexafluoropropylene gather
One or more in propylene, polysulfonate fluorovinyl ether and teflon-copolymers.
Preferably, in the step (1), the hyperpure isopropyl alcohol is pumped into the preferential organic matter film point thoroughly by charging
From device, and the absolute pressure scope of the feed pump is 200～500kPa.
Preferably, in the step (1), the gauge pressure of the preferential organic matter film separator feed side thoroughly is 0～
0.6MPa, feeding temperature is 20～60 DEG C, and crossflow velocity is 0.08～2m/s.Preferably, it is described preferential in the step (2)
Thoroughly the per-meate side of organic matter film separator is vacuumized by vavuum pump, and the vacuum of per-meate side is 1000～10000Pa.
Preferably, the odorless isopropanol of acquisition is molten in the step (3) can use as food level isopropanol, not by institute
Stating the seepage remaining liquid of preferential organic matter film separator thoroughly can use as industrial level isopropanol.
A kind of method of hyperpure isopropyl alcohol deodorization proposed by the present invention, creatively using preferential organic matter film thoroughly, due to
Difference of the preferential organic matter film thoroughly to different material absorption selective penetrated property, and the preferential organic matter film specific aim in the present invention
Ground is using the preferential particular functionality film through isopropanol.Jing after the process of preferential organic matter film thoroughly, in hyperpure isopropyl alcohol raw material
Isopropanol is enriched with through preferential organic matter film thoroughly and in the form of a vapor in the per-meate side of film, is obtained after condensed device condensation
Penetrating fluid, penetrating fluid is odorless isopropanol, and Jing stinks organoleptic analysis can be used for the works such as food, essence, medicine without any stink
Industry field；And the seepage remaining liquid being trapped, it is the isopropanol comprising materials such as water, sulfide, carbonyl classes, this kind of isopropanol can be used for
Other insensitive industry are required stink.
The invention has the beneficial effects as follows：
1. the present invention carries out the deodorization of hyperpure isopropyl alcohol, and preferential organic matter thoroughly by preferential organic matter film separator thoroughly
Membrane separation device is employed with the preferential particular functionality film through isopropanol, and the film can effectively remove the smelly of hyperpure isopropyl alcohol
Taste, the odorless aqueous isopropanol for obtaining meets the requirement of food level isopropanol odorless on market；
2. the present invention adopts new membrane separation technique, not only avoid using organic solvent or other third party's materials, real
Green extraction process is showed, effective list simple to operate, energy consumption is low, and safety and environmental protection is reduced into while improve deodorizing effect
This.
Description of the drawings
Fig. 1 is a kind of process chart of the method for hyperpure isopropyl alcohol deodorization in the present invention；
Wherein：1：Head tank, 2：Feed pump, 3：Preferential organic matter film separator thoroughly, 4：Condenser, 5：Vavuum pump, A：
Hyperpure isopropyl alcohol raw material, B：Seepage remaining liquid, C：Isopropanol penetrating fluid.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of equipment of hyperpure isopropyl alcohol deodorization, including the head tank 1, feed pump 2 being sequentially connected, preferential organic matter film thoroughly
Separator 3, condenser 4 and vavuum pump 5, preferential organic matter film separator thoroughly includes membrane module, and membrane module by single or
Multiple preferential organic matter film unit series, parallel thoroughly or series-parallel connection composition.Membrane module includes preferential organic matter film thoroughly, preferential thoroughly organic
Thing film is that have the preferential particular functionality film through isopropanol.Specifically, the material of preferential organic matter film thoroughly includes organosilicon
It is polymer, fluoropolymer, polyurethanes, Noryl, polyether amide block copolymer, cellulose acetate, hydrophobic
One or more in nano titanium oxide, inorganic type molecular sieve or inorganic ceramic are composited.Wherein, organosilicon polymer bag
Include but be not limited to dimethyl silicone polymer, poly- trimethyl silicane propine, polyvinyl trimethyl silane, polyvinyl dimethyl-silicon
One or more in alkane, polymethylacrylic acid trimethyl silane methyl esters and poly- HMDO.Fluoropolymer includes
But it is not limited to polytetrafluoroethylene (PTFE), Kynoar, polyhexafluoropropylene polypropylene, polysulfonate fluorovinyl ether and polytetrafluoroethylene (PTFE) to be total to
One or more in polymers.
Preferential organic matter film thoroughly adopts ceramics/organosilicon polymer composite membrane in the present embodiment, concrete to think company from nine
The tubular ceramic of production/dimethyl silicone polymer composite membrane.
A kind of method of hyperpure isopropyl alcohol deodorization, it is specific as follows：
First, hyperpure isopropyl alcohol A is sent into into preferential organic matter film separator 3 thoroughly.
The hyperpure isopropyl alcohol A Jing feed pumps 2 that isopropanol content in head tank 1 is 99.850% are sent into preferential thoroughly organic
Thing membrane separation device 3, the absolute pressure of feed pump 2 is 200kPa, and preferential organic matter film separator feed side gauge pressure thoroughly is 0MPa, is operated
Temperature is 20 DEG C, and crossflow velocity is 0.08m/s.Preferential organic matter film thoroughly is that have the preferential particular functionality through isopropanol
Film, from the nine tubular ceramic/dimethyl silicone polymer composite membranes for thinking company's production, adopts aperture for 20nm Al2O3Ceramic filtering
Film is basement membrane, is prepared from for cortical material by the dimethyl silicone polymer being modified by mineral crystal.
Then, the per-meate side in preferential organic matter film separator 3 thoroughly is vacuumized, and isopropanol is selectively penetrated through
Preferential organic matter film separator 3 thoroughly is simultaneously vaporized and becomes IPA vapor.
The per-meate side of membrane separation device is provided with vavuum pump 5, opens vavuum pump and vacuumizes, and vacuum is 1000Pa, isopropanol
Selectively infiltration evaporation becomes vapor permeable through film.
Finally, isopropanol penetrating fluid C is obtained after IPA vapor is condensed, isopropanol penetrating fluid C is odorless isopropanol.
The condensed device 4 of vapor permeable obtains penetrating fluid C after condensing, and does not obtain seepage remaining liquid B in retentate side through the liquid of film.
Penetrating fluid C is odorless isopropanol, can be used for the industrial circles such as food, essence, medicine；And the seepage remaining liquid being trapped, be comprising water,
The isopropanol of the materials such as sulfide, carbonyl class, this kind of isopropanol can be used for other industry insensitive to stink requirement.Through reason
Change analysis and stink organoleptic analysis, specific experiment testing result is shown in Table 1.
Table 1
Embodiment 2
The equipment of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar with the equipment employed in embodiment 1.And this
Preferential organic matter film employed in embodiment is that organosilicon polymer-fluoropolymer-hydrophobic nano-titanium dioxide is combined
Film, organosilicon polymer is specially dimethyl silicone polymer, and fluoropolymer is specially polytetrafluoroethylene (PTFE).
The method of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar to Example 1, specific as follows：
The hyperpure isopropyl alcohol A Jing feed pumps 2 that isopropanol content in head tank 1 is 99.850% are sent into preferential thoroughly organic
Thing membrane separation device 3, the absolute pressure of feed pump 2 is 500kPa.Preferential organic matter film separator feed side gauge pressure thoroughly is 0.6MPa, is grasped
Make temperature for 30 DEG C, crossflow velocity is 0.5m/s.Preferential organic matter film thoroughly is that have the preferential particular functionality through isopropanol
Film, from dimethyl silicone polymer-polytetrafluoroethylene (PTFE)-hydrophobic nano-titanium dioxide composite membrane.The per-meate side of membrane separation device sets
There is vavuum pump 5, open vavuum pump and vacuumize, vacuum is 10000Pa, and selectively infiltration evaporation becomes isopropanol through film
Vapor permeable, the condensed device 4 of vapor permeable obtains penetrating fluid C after condensing, and does not obtain seepage remaining liquid in retentate side through the liquid of film
B.Penetrating fluid C is odorless isopropanol, can be used for the industrial circles such as food, essence, medicine；And the seepage remaining liquid being trapped, be comprising
The isopropanol of the materials such as water, sulfide, carbonyl class, this kind of isopropanol can be used for other industry insensitive to stink requirement.Jing
Physico-chemical analysis and stink organoleptic analysis are crossed, specific experiment testing result is shown in Table 2.
Table 2
Embodiment 3
The equipment of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar with the equipment employed in embodiment 1.And this
Preferential organic matter film employed in embodiment is that dimethyl silicone polymer-polyether amide block copolymer-inorganic ceramic is multiple
Close film.
The method of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar to Example 1, specific as follows：
The hyperpure isopropyl alcohol A Jing feed pumps 2 that isopropanol content in head tank 1 is 99.900% are sent into preferential thoroughly organic
Thing membrane separation device 3, the absolute pressure of feed pump 2 is 400kPa, and preferential organic matter film separator feed side gauge pressure thoroughly is 0.1MPa, is grasped
Make temperature for 60 DEG C, crossflow velocity is 2m/s.Preferential organic matter film thoroughly is that have the preferential particular functionality film through isopropanol,
From dimethyl silicone polymer-polyether amide block copolymer-inorganic ceramic composite membrane.The per-meate side of membrane separation device is provided with very
Empty pump 5, opens vavuum pump and vacuumizes, and vacuum is 5000Pa, and selectively infiltration evaporation becomes infiltration to isopropanol through film
Steam, the condensed device 4 of vapor permeable obtains penetrating fluid C after condensing, and does not obtain seepage remaining liquid B in retentate side through the liquid of film.Ooze
Transparent liquid C is odorless isopropanol, can be used for the industrial circles such as food, essence, medicine；And the seepage remaining liquid being trapped, it is comprising water, sulphur
The isopropanol of the materials such as compound, carbonyl class, this kind of isopropanol can be used for other industry insensitive to stink requirement.Through physics and chemistry
Analysis and stink organoleptic analysis, specific experiment testing result is shown in Table 3.
Table 3
Embodiment 4
The equipment of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar with the equipment employed in embodiment 1.And this
Preferential organic matter film employed in embodiment is modified dimethyl silicone polymer-Noryl-inorganic type molecular sieve
Composite membrane.
The method of the hyperpure isopropyl alcohol deodorization that the present embodiment is adopted is similar to Example 1, specific as follows：
The hyperpure isopropyl alcohol A Jing feed pumps 2 that isopropanol content in head tank 1 is 99.980% are sent into preferential thoroughly organic
Thing membrane separation device 3, the absolute pressure of feed pump 2 is 300kPa, and preferential organic matter film separator feed side gauge pressure thoroughly is 0.2MPa, is grasped
Make temperature for 50 DEG C, crossflow velocity is 1.5m/s.Preferential organic matter film thoroughly is that have the preferential particular functionality through isopropanol
Film, from modified dimethyl silicone polymer-Noryl-inorganic type Zeolite composite film.The per-meate side of membrane separation device
Be provided with vavuum pump 5, open vavuum pump and vacuumize, vacuum is 4000Pa, isopropanol selectively infiltration evaporation through film into
For vapor permeable, penetrating fluid C is obtained after the condensed condensation of device 4 of vapor permeable, the liquid through film does not obtain oozing remaining in retentate side
Liquid B.Penetrating fluid C is odorless isopropanol, can be used for the industrial circles such as food, essence, medicine；And the seepage remaining liquid being trapped, it is bag
The isopropanol of the materials such as aqueous, sulfide, carbonyl class, this kind of isopropanol can be used for other industry insensitive to stink requirement.
Through physico-chemical analysis and stink organoleptic analysis, specific experiment testing result is shown in Table 4.
Table 4
Certainly above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with technique
People will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to this
Equivalent transformation or modification that the Spirit Essence of bright main technical schemes is done, all should be included within the scope of the present invention.
Claims (10)
1. a kind of method of hyperpure isopropyl alcohol deodorization, it is characterised in that：It is comprised the following steps：
(1) hyperpure isopropyl alcohol is sent into into preferential organic matter film separator thoroughly；
(2) per-meate side in the preferential organic matter film separator thoroughly is vacuumized, and isopropanol selectively penetrates through institute
State preferential organic matter film separator thoroughly and vaporization becomes IPA vapor；
(3) isopropanol penetrating fluid will be obtained after IPA vapor condensation, the isopropanol penetrating fluid is odorless isopropanol.
2. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：The hyperpure isopropyl alcohol is
Mixture of the isopropanol content more than 99.80%.
3. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：The preferential organic matter thoroughly
Membrane separation device includes preferential organic matter film thoroughly, and the preferential organic matter film thoroughly is that have the preferential specific function through isopropanol
Property film.
4. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 3, it is characterised in that：The preferential organic matter thoroughly
The material of film includes organosilicon polymer, fluoropolymer, polyurethanes, Noryl, polyether amide block copolymerization
One or more in thing, cellulose acetate, hydrophobic nano-titanium dioxide, inorganic type molecular sieve or inorganic ceramic are composited.
5. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 4, it is characterised in that：The organosilicon polymer
Including but not limited to dimethyl silicone polymer, poly- trimethyl silicane propine, polyvinyl trimethyl silane, polyvinyl dimethyl-silicon
One or more in alkane, polymethylacrylic acid trimethyl silane methyl esters and poly- HMDO.
6. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 4, it is characterised in that：The fluoropolymer bag
Include but be not limited to polytetrafluoroethylene (PTFE), Kynoar, polyhexafluoropropylene polypropylene, polysulfonate fluorovinyl ether and polytetrafluoroethylene (PTFE)
One or more in copolymer.
7. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：In the step (1), institute
State hyperpure isopropyl alcohol and the preferential organic matter film separator thoroughly is pumped into by charging, and the absolute pressure scope of the feed pump is
200～500kPa.
8. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：In the step (1), institute
The gauge pressure for stating preferential organic matter film separator feed side thoroughly is 0～0.6MPa, and feeding temperature is 20～60 DEG C, and crossflow velocity is
0.08～2m/s.
9. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：In the step (2), institute
The per-meate side for stating preferential organic matter film separator thoroughly is vacuumized by vavuum pump, and the vacuum of per-meate side be 1000～
10000Pa。
10. the method for a kind of hyperpure isopropyl alcohol deodorization according to claim 1, it is characterised in that：Obtain in the step (3)
The odorless isopropanol for obtaining can be used as food level isopropanol, can not used as industrial level isopropanol through the seepage remaining liquid of film.
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| CN201611271223.7A CN106631698B (en) | 2016-12-30 | 2016-12-30 | A kind of method of hyperpure isopropyl alcohol deodorization |
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| CN201611271223.7A CN106631698B (en) | 2016-12-30 | 2016-12-30 | A kind of method of hyperpure isopropyl alcohol deodorization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837682A (en) * | 2017-12-25 | 2018-03-27 | 南京九思高科技有限公司 | The device and method of drug products in a kind of bi-membrane method extraction organic solution |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159528A (en) * | 2008-09-19 | 2011-08-17 | 日挥株式会社 | Method for producing alcohol, method for producing hydrogen or synthetic gas using method for producing alcohol, and alcohol |
-
2016
- 2016-12-30 CN CN201611271223.7A patent/CN106631698B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159528A (en) * | 2008-09-19 | 2011-08-17 | 日挥株式会社 | Method for producing alcohol, method for producing hydrogen or synthetic gas using method for producing alcohol, and alcohol |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837682A (en) * | 2017-12-25 | 2018-03-27 | 南京九思高科技有限公司 | The device and method of drug products in a kind of bi-membrane method extraction organic solution |
| CN107837682B (en) * | 2017-12-25 | 2024-04-12 | 江苏久膜高科技股份有限公司 | Device and method for extracting medicine products in organic solution by double-membrane method |
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| CN106631698B (en) | 2019-09-03 |
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