CN105862292A - Recovery and separation kettle for supercritical CO2 dyeing gas-solid separation and recovery and separation method - Google Patents
Recovery and separation kettle for supercritical CO2 dyeing gas-solid separation and recovery and separation method Download PDFInfo
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- CN105862292A CN105862292A CN201610287790.5A CN201610287790A CN105862292A CN 105862292 A CN105862292 A CN 105862292A CN 201610287790 A CN201610287790 A CN 201610287790A CN 105862292 A CN105862292 A CN 105862292A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B9/00—Solvent-treatment of textile materials
- D06B9/02—Solvent-treatment of textile materials solvent-dyeing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B9/00—Solvent-treatment of textile materials
- D06B9/06—Solvent-treatment of textile materials with recovery of the solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/116—Molecular sieves other than zeolites
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration, distillation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention provides a recovery and separation kettle for supercritical CO2 dyeing gas-solid separation and a recovery and separation method. The recovery and separation kettle is characterized in that a tank body of the recovery and separation kettle comprises a cylindrical casing, a top cover, a base plate and an inner separation cylinder, wherein the top cover is mounted at the upper end of the cylindrical casing; the inner separation cylinder is arranged in the cylindrical casing; the base plate is mounted at the lower end of the cylindrical casing; a lower sponge layer, a molecular sieve and an upper sponge layer are sequentially arranged in the inner separation cylinder from bottom to top; a pipe being introduced into a tank cavity is arranged in the center of the base plate; a pipe communicated with a condensing unit is arranged at the upper part of the cylindrical casing. According to the recovery and separation kettle and the recovery and separation method, gas mixed with a large quantity of dyes, impurities and water after supercritical CO2 waterless dyeing is guided into the recovery and separation kettle for purification and recovery, and the purity degree and the drying degree of recovered CO2 can be increased in a molecular sieve purification manner; besides, the molecular sieve can be recycled after treatment.
Description
Technical field
The invention belongs to new dyeing technical field, relate to a kind of use the method for molecular sieve filtration at supercritical CO2In dyeing course, to the gas/solid separation of waste gas and to CO2Recycling, specifically a kind of supercritical CO2The recovery separating still of dyeing gas solid separation and recovery separation method.
Background technology
In traditional dyeing course, we generally adopt and use water as main medium.The sustainable development of environment all can be caused bad impact by the chemical substances such as substantial amounts of dyestuff, surfactant.Additionally, process such as the sewage needs discharging dyeing are neutralized, sedimentations, it is required for spending substantial amounts of manpower and materials.According to incompletely statistics, China's textile printing and dyeing industry year water consumption reaches 1,700,000,000 tons, and the discharge of sewage reaches 1,600,000,000 tons.And in recent years, the further development of the restriction dyeing and finishing industry that the problem such as the water resource critical shortage of China's most area, particularly sewage discharge is serious.It is therefore prevented that pollute, the green effective dyeing of exploitation, become the correct direction of following dyeing and finishing.
In recent years, a kind of novel green staining method supercritical CO2Non-aqueous dyeing brings new dawn to following dyeing and finishing industry.The excellent features such as this technology has high efficiency due to it, pollution-free, and dyeing time is short, enjoy favor.This technology uses supercritical CO2As dyeing medium, at CO2Heated temperature is more than 31 DEG C, when pressure is more than 7.3MPa, now becomes the state above-critical state of a kind of non-liquid of non-gas.Then, suppress and constantly circulate between fuel tank and dyeing pot by circulating pump, CO2The dyestuff of dissolving is delivered to the hole of fiber, makes dyestuff contaminate evenly and rapidly above fabric.Whole process need not the process cleaned, dry.At present many countries all have energy-saving and emission-reduction, widely applicable novel green equipment for dyeing and finishing developing of making great efforts is this, it is intended to push it against industrialization, practical.
But, as an emerging dyeing industrial equipment, requisite in actual production process there is various problem.Carry the supercritical fluid of dyestuff after terminating dyeing, the most also can carry the dyestuff of the upper dye of a part, the moisture in air, or the impurity in yarn.So, by the CO after these impurity and release2Can separate will be to recycle CO2Key.At present in general supercritical non-aqueous dyeing equipment, carry the above-critical state CO of impurity2First passing around a recovery still release, release rear impurity separates with gas by the gravity of self.There is serious technological deficiency in this kind of still that reclaims, first, this mode can not be by the separation of water effective, and secondly, the dyestuff dust after dissolving can bring back to CO along with air-flow2Storage tank in, by the CO in storage tank2Pollute, also can under the influence of Color once.
How the problems referred to above existed for prior art, design and a kind of new be adapted to supercritical CO2Non-aqueous dyeing waste gas recovering device and method, improve and reclaim CO2Degree of purity and aridity, additionally, through process after can reuse, this is technical problem the most urgently to be resolved hurrily.
Summary of the invention
Present invention is directed at supercritical CO2For CO during non-aqueous dyeing2Reclaim the defect existed, it is provided that a kind of supercritical CO2The recovery separating still of dyeing gas solid separation and recovery separation method
, recovery CO can be improved2Degree of purity and aridity；Additionally, molecular sieve can reuse after processing.
It is an object of the invention to be achieved through the following technical solutions:
A kind of supercritical CO2The recovery separating still of dyeing gas solid separation, including tank body, it is characterized in that, described tank body includes cylindrical case, top cover, chassis and separation inner core, and described top cover is installed in described cylindrical case upper end, and described separation inner core is placed in described cylindrical case, described chassis is installed in the lower end of cylindrical case, set gradually from the bottom to top in described separation inner core to arrange in the middle of lower floor sponge, molecular sieve, upper strata sponge, described chassis and be passed through the endoceliac pipeline of described tank, described tubular
Shell upper arranges the pipeline of connection condensing unit.
Improvement to technique scheme: described lower floor sponge is fixed by the lower wire-mesh screen with leakage hole, described upper strata sponge is fixed by the upper wire-mesh screen with leakage hole.
Further improvement to technique scheme: described molecular sieve includes 5A level molecular sieve, 4A level molecular sieve and 3A level molecular sieve.
Further improvement to technique scheme: described upper strata sponge thickness is 1-3cm, and described lower floor's sponge thickness is 0.5-2cm.
Further improvement to technique scheme: described pipeline outer end connects a condensing unit.
One utilizes above-mentioned supercritical CO2The recovery separation method reclaiming separating still of dyeing gas solid separation, it is characterised in that by supercritical CO2Carrying out Recovery Purifying in being entrained with the gas described recovery separating still of importing of a large amount of dyestuff, impurity, moisture after non-aqueous dyeing, concrete recovery separation comprises the steps:
(1) first, by supercritical CO2Gas after dyeing is in described pipeline 9 imports described recovery separating still, by lower floor sponge by CO2In the moisture absorption carried, lower floor sponge can be slowed down the flowing velocity of high pressure draught, be made gas flow jet scatter, molecular sieve be fully contacted with air-flow, absorbs CO2Dyestuff in gas, impurity；
(2) then, gas upper strata sponge above molecular sieve again, the gas after purifying enters condensation drum condensation recovery after pipeline.
Improvement to technique scheme: described gas enters the pressure reclaimed in separating still cavity and is dropped by less than rapidly 7MPa by 20 MPa.
Further improvement to technique scheme: also include the step that the molecular sieve having adsorbed saturable dye impurity is carried out reduction cleaning regeneration, put into having adsorbed saturated molecular sieve by acetone and ethanol according in the solution that part by weight is that 0.2-2:1 is configured to, by electromagnetic oscillation 20-120min, the dyestuff, the impurity that dissolve in described molecular sieve will dissolutions, then, by molecular sieve strainer filtering, putting into after drying baker dries 10h at 120-150 DEG C, molecular sieve can be reused.
The present invention compared with prior art has the advantages that:
The present invention reclaim separating still tank body include cylindrical case, top cover, chassis and separation inner core, top cover is installed in cylindrical case upper end, separation inner core will be stated be placed in cylindrical case, separation inner core is fixed by the lower end installation chassis of cylindrical case, lower floor sponge, molecular sieve, upper strata sponge is set gradually from the bottom to top in described separation inner core, arranging in the middle of described chassis and be passed through the endoceliac pipeline of described tank, described cylindrical case top arranges the pipeline of connection condensing unit.
By using molecular sieve to supercritical CO2Waste gas after non-aqueous dyeing has carried out filter cleaning fast and efficiently.Moisture in waste gas, dyestuff, impurity major part when the molecular sieve by having high adsorption are retained by absorption.Meanwhile, absorption is carried out dissolving by the mixed preparing dissolving that have employed acetone and ethanol at impurity, the dyestuff of molecular sieve surface so that molecular sieve can be with regeneration.
Accompanying drawing explanation
Fig. 1 is one supercritical CO of the present invention2The structural representation reclaiming separating still of dyeing gas solid separation；
Fig. 2 is the structural representation separating inner core in the present invention.
In figure, 1-top cover；2-pipeline；The upper metallic sieve of 3-；4-upper strata sponge；5-molecular sieve；6-lower floor sponge；Wire-mesh screen under 7-；8-cylindrical case；9-pipeline；10-chassis；11-separates inner core.
Detailed description of the invention
See Fig. 1, Fig. 2, one supercritical CO of the present invention2The embodiment reclaiming separating still of dyeing gas solid separation, separating still tank body includes cylindrical case 8, top cover 1, chassis 10 and separates inner core 11.Top cover 1 is installed in cylindrical case 8 upper end, separation inner core 11 is placed in cylindrical case 8, at the lower end installation chassis 10 of cylindrical case 8.Setting gradually from the bottom to top in above-mentioned separation inner core 11 to arrange in the middle of lower floor sponge 6, molecular sieve 5, upper strata sponge 4, described chassis 10 and be passed through the endoceliac pipeline of described tank, described cylindrical case top arranges the pipeline 2 of connection condensation drum.
Specifically: above-mentioned lower floor sponge 6 is fixed by the lower wire-mesh screen 7 with leakage hole, upper strata sponge 4 is fixed by the upper wire-mesh screen 3 with leakage hole.
Above-mentioned molecular sieve includes 5A level molecular sieve, 4A level molecular sieve and 3A level molecular sieve.Above-mentioned upper strata sponge thickness is 1-3cm, and lower floor's sponge thickness is 0.5-2cm.Above-mentioned pipeline 2 outer end connects a condensation drum.
Seeing Fig. 1, Fig. 2, one of the present invention utilizes above-mentioned supercritical CO2The detailed description of the invention reclaiming separation method reclaiming separating still of dyeing gas solid separation: by supercritical CO2Carrying out Recovery Purifying in being entrained with the gas described recovery separating still of importing of a large amount of dyestuff, impurity, moisture after non-aqueous dyeing, concrete recovery separation comprises the steps:
(1) first, by supercritical CO2Gas after dyeing is in described pipeline 9 imports described recovery separating still 8, by lower floor sponge 6 by CO2The moisture absorption carried in gas, lower floor sponge 6 can be slowed down the flowing velocity of high pressure draught, make gas flow jet scatter, molecular sieve 5 is fully contacted with air-flow, absorbs CO2Dyestuff in gas, impurity；When described gas enters and reclaims in separating still cavity, pressure is quickly fallen to less than 7MPa by 20 MPa.Then, gas upper strata sponge 4 above molecular sieve 5 again, the CO after purifying2Gas enters the condensing unit (condensation drum) that temperature is-15 degrees Celsius after pipeline 2 and carries out condensation recovery.
In order to make molecular sieve 5 reuse, present invention additionally comprises the step that the molecular sieve 5 having adsorbed saturable dye impurity is carried out reduction cleaning regeneration, put into having adsorbed saturated molecular sieve 5 by acetone and ethanol according in the solution that part by weight is that 0.2-2:1 is configured to, by electromagnetic oscillation 20-120min, the dyestuff, the impurity that dissolve in described molecular sieve 5 will dissolutions, then, by molecular sieve 5 strainer filtering, putting into after drying baker dries 10h at 120-150 DEG C, molecular sieve 5 can be reused.
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1:
Use the supercritical CO of 5A level molecular sieve2Waste gas is carried out reclaiming the method separated by the separating still that reclaims of dyeing gas solid separation.The method is by supercritical CO2Be accompanied with after non-aqueous dyeing a large amount of red disperse dyes, fabric impurity, moisture waste gas by separating still equipped with 5A level molecular sieve 5, the pressure of gas is suddenly dropped to less than 7MPa by 20MPa.Air-flow at a high speed air-flow after lower floor sponge 6 can be drastically reduced from a branch of multi beam speed simultaneously that becomes, and fabric impurity, moisture at this layer of bulky grain diameter all can be trapped and isolate.And then, when air-flow enters into the molecular sieve 5 with strong adsorption, bigger serface, the dyestuff carried secretly in air-flow, remaining moisture sufficiently can be absorbed by molecular sieve 5.Afterwards, the air-flow of purification again passes by upper strata sponge 4, is then passed through pipeline 2 and enters into condensation drum and carry out recycling.CO after recovery2Through again to blank yarn dyeing, it was found that yarn there is no obvious color, this explanation uses 5A level molecular sieve 5 apparent to the effect of the contaminant filters such as dyestuff.The molecular sieve of filtered dyestuff is dipped in acetone-alcoholic solution, fully shakes.After a period of time, dyestuff almost is completely dissolved out, then, molecular sieve 5 is dried, reclaims, is recycled.
Embodiment 2:
Use the supercritical CO of 4A level molecular sieve2Waste gas is carried out reclaiming the method separated by the separating still that reclaims of dyeing gas solid separation.The method is by supercritical CO2Be accompanied with after non-aqueous dyeing a large amount of blue disperse dye, fabric impurity, moisture waste gas by separating still equipped with 4A level molecular sieve 5, the pressure of gas is dropped suddenly less than 7MPa by 20MPa.Air-flow at a high speed air-flow after lower floor sponge 6 can be drastically reduced from a branch of multi beam speed simultaneously that becomes, and fabric impurity, moisture at this layer of bulky grain diameter all can be trapped and isolate.And then, when air-flow enters into the molecular sieve 5 with strong adsorption, bigger serface, the dyestuff carried secretly in air-flow, remaining moisture sufficiently can be absorbed by molecular sieve 5.Afterwards, the air-flow of purification again passes by upper strata sponge 4, is then passed through pipeline 2 and enters into condensation drum and carry out recycling.CO after recovery2Through again to blank yarn dyeing, it was found that yarn there is no obvious color, this explanation uses 4A level molecular sieve 5 apparent to the effect of the contaminant filters such as dyestuff.The molecular sieve 5 of filtered dyestuff is dipped in acetone-alcoholic solution, fully shakes.After a period of time, dyestuff almost is completely dissolved out, then molecular sieve is dried, reclaims, is recycled.
Embodiment 3:
Use the supercritical CO of 3A level molecular sieve2Waste gas is carried out reclaiming the method separated by the separating still that reclaims of dyeing gas solid separation.The method is by supercritical CO2Be accompanied with after non-aqueous dyeing a large amount of Yellow disperse dye, fabric impurity, moisture waste gas by separating still equipped with 3A level molecular sieve 5, the pressure of gas is suddenly dropped to less than 6MPa by 20MPa.Air-flow at a high speed air-flow after lower floor sponge 6 can be drastically reduced from a branch of multi beam speed simultaneously that becomes, and fabric impurity, moisture at this layer of bulky grain diameter all can be trapped and isolate.And then, when air-flow enters into the molecular sieve 5 with strong adsorption, bigger serface, dyestuff, the remaining moisture carried secretly in air-flow sufficiently can be absorbed by molecular sieve.Afterwards, the air-flow of purification again passes by last upper strata sponge 4, is then passed through pipeline 2 and enters into condensation drum and carry out recycling.CO after recovery2Through again to blank yarn dyeing, it was found that yarn there is no obvious color, this explanation uses 3A level molecular sieve apparent to the effect of the contaminant filters such as dyestuff.The molecular sieve of filtered dyestuff is dipped in acetone-alcoholic solution, fully shakes.After a period of time, dyestuff almost is completely dissolved out, then molecular sieve 5 is dried, reclaims, is recycled.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above; those skilled in the art; in the essential scope of the present invention, the change made, retrofit, add or replace, also should belong to protection scope of the present invention.
Claims (10)
1. a supercritical CO2The recovery separating still of dyeing gas solid separation, including tank body, it is characterized in that, described tank body includes cylindrical case, top cover, chassis and separation inner core, described top cover is installed in described cylindrical case upper end, described separation inner core is placed in described cylindrical case, described chassis is installed in the lower end of cylindrical case, lower floor sponge, molecular sieve, upper strata sponge is set gradually from the bottom to top in described separation inner core, arranging in the middle of described chassis and be passed through the endoceliac pipeline of described tank, described cylindrical case top arranges the pipeline of connection condensing unit.
2. according to the supercritical CO described in claim 12The recovery separating still of dyeing gas solid separation, it is characterised in that described lower floor sponge is fixed by the lower wire-mesh screen with leakage hole, and described upper strata sponge is fixed by the upper wire-mesh screen with leakage hole.
3. according to the supercritical CO described in claim 1 or 22The recovery separating still of dyeing gas solid separation, it is characterised in that described molecular sieve includes 5A level molecular sieve, 4A level molecular sieve and 3A level molecular sieve.
4. according to the supercritical CO described in claim 1 or 22The recovery separating still of dyeing gas solid separation, it is characterised in that described upper strata sponge thickness is 1-3cm, and described lower floor's sponge thickness is 0.5-2cm.
5. according to the supercritical CO described in claim 32The recovery separating still of dyeing gas solid separation, it is characterised in that described upper strata sponge thickness is 1-3cm, and described lower floor's sponge thickness is 0.5-2cm.
6. according to the supercritical CO described in claim 1 or 22The recovery separating still of dyeing gas solid separation, it is characterised in that described pipeline outer end connects a condensing unit.
7. according to the supercritical CO described in claim 52The recovery separating still of dyeing gas solid separation, it is characterised in that described pipeline outer end connects a condensing unit.
8. one kind utilizes supercritical CO described in any one of claim 1-72The recovery separation method reclaiming separating still of dyeing gas solid separation, it is characterised in that by supercritical CO2Carrying out Recovery Purifying in being entrained with the gas described recovery separating still of importing of a large amount of dyestuff, impurity, moisture after non-aqueous dyeing, concrete recovery separation comprises the steps:
(1) first, by supercritical CO2Gas after dyeing is in described pipeline 9 imports described recovery separating still, by lower floor sponge by CO2In the moisture absorption carried, lower floor sponge can be slowed down the flowing velocity of high pressure draught, be made gas flow jet scatter, molecular sieve be fully contacted with air-flow, absorbs CO2Dyestuff in gas, impurity；
(2) then, gas upper strata sponge above molecular sieve again, the gas after purifying enters condensation drum condensation recovery after pipeline.
9. according to supercritical CO described in claim 82The recovery separation method reclaiming separating still of dyeing gas solid separation, it is characterised in that described gas enters the pressure reclaimed in separating still cavity and is dropped by less than rapidly 7MPa by 20 MPa.
10. according to supercritical CO described in claim 8 or 92The recovery separation method reclaiming separating still of dyeing gas solid separation, it is characterized in that, also include the step that the molecular sieve having adsorbed saturable dye impurity is carried out reduction cleaning regeneration, put into having adsorbed saturated molecular sieve by acetone and ethanol according in the solution that part by weight is that 0.2-2:1 is configured to, by electromagnetic oscillation 20-120min, the dyestuff, the impurity that dissolve in described molecular sieve will dissolutions, then, by molecular sieve strainer filtering, putting into after drying baker dries 10h at 120-150 DEG C, molecular sieve can be reused.
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| WO2018090489A1 (en) * | 2016-11-21 | 2018-05-24 | 大连工业大学 | Multi-element dyeing and finishing kettle, and industrial waterless dyeing and finishing apparatus using supercritical co2 fluid and having scale of 1,000 l or more |
| CN108815933A (en) * | 2018-07-13 | 2018-11-16 | 青岛即发集团股份有限公司 | A kind of supercritical dyeing recycling separating still and recycling separation method |
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| CN106835561A (en) * | 2016-11-21 | 2017-06-13 | 大连工业大学 | A kind of supercritical CO2Separating still in anhydrous equipment for dyeing and finishing |
| WO2018090489A1 (en) * | 2016-11-21 | 2018-05-24 | 大连工业大学 | Multi-element dyeing and finishing kettle, and industrial waterless dyeing and finishing apparatus using supercritical co2 fluid and having scale of 1,000 l or more |
| CN106835561B (en) * | 2016-11-21 | 2019-10-22 | 大连工业大学 | A kind of supercritical CO2Separating still in anhydrous equipment for dyeing and finishing |
| US10851485B2 (en) | 2016-11-21 | 2020-12-01 | Dalian Polytechnic University | Multifunctional dyeing and finishing kettle and industrialized supercritical CO2 fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters |
| CN107059304A (en) * | 2017-04-14 | 2017-08-18 | 三明通用科技孵化有限公司 | A kind of high-efficiency washing method of supercritical CO 2 dyeing equipment |
| CN108815933A (en) * | 2018-07-13 | 2018-11-16 | 青岛即发集团股份有限公司 | A kind of supercritical dyeing recycling separating still and recycling separation method |
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| Publication number | Publication date |
|---|---|
| CN105862292B (en) | 2018-10-19 |
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