CN203731813U - Catalyst drying machine - Google Patents
Catalyst drying machine Download PDFInfo
- Publication number
- CN203731813U CN203731813U CN201420083778.9U CN201420083778U CN203731813U CN 203731813 U CN203731813 U CN 203731813U CN 201420083778 U CN201420083778 U CN 201420083778U CN 203731813 U CN203731813 U CN 203731813U
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- China
- Prior art keywords
- drying machine
- catalyst
- pipe
- catalyst drying
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003054 catalyst Substances 0.000 title claims abstract description 74
- 238000001035 drying Methods 0.000 title claims abstract description 66
- 239000002904 solvent Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 238000007599 discharging Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The utility model discloses a catalyst drying machine comprising a frame (1), a double-conical tank (2), and a rotating shaft (3) fixedly connected with the frame (1). The double-conical tank (2) can rotate around the rotating shaft (3). The double-conical tank (2) is provided with a first conical end and a second conical end; the first conical end is provided with a feed hole (4); the second conical end is communicated with both a catalyst discharge pipe (5) and a solvent discharge pipe (6); a filter head (7) is fixed at the connection of the solvent discharge pipe (6) and the second conical end. The catalyst drying machine has the advantages that content of solvent in the catalyst to be dried is maximally decreased, the amount of solvent which can be discharged only by means of heating the tank is greatly decreased, drying efficiency is improved, drying cycle is shortened, and energy consumption is decreased.
Description
Technical field
The utility model relates to the dry field of solid particle, particularly, relates to a kind of catalyst drying machine.
Background technology
The dry main drying equipment that adopts two kinds of forms of catalyst is produced at present, and the first is Horizontal vibration drying machine, drying receptacle horizontally set, its feature is that drying time is short, and mixing of materials is evenly abundant, but has discharging difficulty, discharging time is long, and is difficult for clean problem.The second is taper autoclave drying machine, and drying receptacle longitudinally arranges, and is characterized in easy discharging, but material moisture content has the trend increasing progressively from top to bottom in taper still, and arid cycle is long.
Above two kinds of drying machines all insert the mode of carrying out press filtration (press filtration: apply normal pressure and realize the operation of filtration in filter medium one side) in material by movable filter, partial solvent press filtration to recovery unit is recycled, but be subject to the restriction of interventional instrument bottom completely of movable filter, device bottom is remaining a large amount of solvent also, remaining a large amount of solvents need to be by heating, make the mode of solvent evaporation to get rid of to equipment for a long time, and this certainly will will expend a large amount of time and the energy.Therefore, existing drying machine all exists arid cycle (arid cycle=drying time+discharging time) long, the defect that energy resource consumption is high.In addition, the mode of employing activity filter press filtration also exists manipulation strength large, the large problems of easily-consumed products consumption such as pad, bolt, filter cloth.
Utility model content
The purpose of this utility model is to provide a kind of catalyst drying machine, and this catalyst drying machine can shorten arid cycle and reduce the energy of dry required consumption.
To achieve these goals, the utility model provides a kind of catalyst drying machine, and described catalyst drying machine comprises: frame, bipyramid tank and the gyroaxis being fixedly connected with described frame, and described bipyramid tank can rotate around described gyroaxis; Described bipyramid tank has the first cone end and the second cone end, and described the first cone end is provided with charging aperture, and described the second cone end is communicated with catalyst discharge nozzle and solvent discharge pipe respectively, and described solvent discharge pipe is fixed with filter with the position that described the second cone end is communicated with.
Preferably, one end of described solvent discharge pipe is stretched in described the second cone end, and described filter is removably disposed in this end of described solvent discharge pipe.
Preferably, described filter is sintering silk screen filter.
Preferably, described sintering silk screen filter comprises filter cloth and the mesh skeleton that is wrapped in described filter cloth both sides.
Preferably, described bipyramid tank has inner layer wall and outer wall, described inner layer wall limits inner chamber, described charging aperture, catalyst discharge nozzle and solvent discharge pipe are communicated with described inner chamber respectively, between described inner layer wall and outer wall, limit chuck, described chuck goes out pipe with heat carrier inlet pipe and heat carrier respectively and is communicated with to form heat carrier circulation, and described heat carrier inlet pipe and heat carrier go out to manage respectively and the export and import that is connected heat carrier heating unit.
Preferably, described heat carrier inlet pipe and heat carrier go out pipe be communicated with described chuck by swivel joint respectively.
Preferably, described catalyst drying machine also comprises vacuum extractor, this vacuum extractor comprise be arranged on described bipyramid tank inside vacuumizing filtration device, be arranged on the vavuum pump of described bipyramid tank outside and connect the vacuum-pumping tube of described vacuum filter and described vavuum pump.
Preferably, described bipyramid tank is also communicated to respectively air inlet pipe and the escape pipe of described inner chamber, and described air inlet pipe is communicated with source of the gas, and described escape pipe is communicated with gas collecting apparatus.
Preferably, described catalyst drying machine comprises the drive unit for driving described bipyramid tank.
Preferably, on described catalyst discharge nozzle, solvent discharge pipe, vacuum-pumping tube, air inlet pipe and escape pipe, be equipped with control valve.
The utility model is fixed on solvent discharge pipe by employing, with the filter that described the second cone end is communicated with position, solvent is carried out to press filtration, fixing filter is more simple to operate than movable filter or filter cloth, filter area is large, and filter is positioned at the bottom of bipyramid tank in the process of press filtration, a large amount of solvents in catalyst to be dried can be discharged by this filter, therefore the utility model can reduce the solvent in catalyst to be dried to greatest extent, greatly reduce and need by the quantity of solvent that could discharge tank body mode of heating, improve drying efficiency, shorten arid cycle, save energy resource consumption.
Other feature and advantage of the present utility model are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of catalyst drying machine described in the utility model.
Description of reference numerals
1, frame; 2, bipyramid tank; 3, gyroaxis; 4, charging aperture; 5, catalyst delivery pipe; 6, solvent discharge pipe; 7, filter; 8, heat carrier inlet pipe; 9, heat carrier goes out pipe; 10, swivel joint; 11, vacuum-pumping tube; 12, vacuumizing filtration device; 13, air inlet pipe; 14, escape pipe; 15, drive unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the utility model, is not limited to the utility model.
It should be noted that, although vacuum-pumping tube 11, air inlet pipe 13 and escape pipe 14 in accompanying drawing 1 are marked on same place, three is complementary different pipeline.
As shown in Figure 1, the utility model provides a kind of catalyst drying machine, and this catalyst drying machine comprises: frame 1, bipyramid tank 2 and the gyroaxis 3 being fixedly connected with described frame 1, gyroaxis 3 by bearings in frame 1, described bipyramid tank 2 can rotate that the catalyst to be dried in bipyramid tank 2 is stirred around described gyroaxis 3, concrete, this bipyramid tank 2 has the first cone end and the second cone end, described the first cone end is provided with charging aperture 4, catalyst to be dried enters in bipyramid tank 2 by charging aperture 4, described the second cone end is communicated with catalyst discharge nozzle 5 and solvent discharge pipe 6 respectively, solvent flows out by solvent discharge pipe 6, catalyst after dry is discharged by catalyst discharge nozzle 5, described solvent discharge pipe 6 is fixed with filter 7 with the position that described the second cone end is communicated with, by this filter 7, catalyst to be dried is carried out to press filtration so that a large amount of solvents are extruded, the outlet of solvent discharge pipe 6 connects solvent recovery unit, to recycle the solvent being press-filtered out.
The utility model is fixed on solvent discharge pipe 6 by employing, with the filter 7 that described the second cone end is communicated with position, solvent is carried out to press filtration, fixing filter is more simple to operate than movable filter or filter cloth, filter area is large, and filter 7 is positioned at the bottom of bipyramid tank 2 in the process of press filtration, a large amount of solvents in catalyst to be dried can be discharged by this filter 7, therefore the utility model can reduce the solvent in catalyst to be dried to greatest extent, greatly reduce and need by the quantity of solvent that could discharge tank body mode of heating, improve drying efficiency, shorten arid cycle, save energy resource consumption.
Further, one end of described solvent discharge pipe 6 is stretched in described the second cone end, and described filter 7 is removably disposed in this end of described solvent discharge pipe 6.Filter 7 can be cylindrical, and it is threaded connection mode and is connected with solvent discharge pipe 6, is specially, and filter 7 is connected to the upper end of the pipe of solvent discharge shown in Fig. 16, so that installing/dismounting.
Preferably filter 7 is sintering silk screen filter, for example 400 order sintering silk screen filters.Sintering silk screen filter comprises filter cloth and is wrapped in the mesh skeleton of described filter cloth both sides; mesh skeleton is formed through vacuum-sintering by woven wire; the mesh skeleton of both sides forms columnar structured, so that filter cloth is wherein protected and to be supported, thus the service life of prolongation filter cloth.Wherein filter cloth is column type, has advantages of good penetrability, intensity is high, corrosion resistance is strong, be easy to clean and anti-cleaning.Filter cloth can adopt the mode of blowback to rinse.
For the catalyst in bipyramid tank 2 is heated evenly in the process of heating evaporation, this bipyramid tank 2 has inner layer wall and outer wall, described inner layer wall limits inner chamber, described charging aperture 4, catalyst discharge nozzle 5 and solvent discharge pipe 6 are communicated with described inner chamber respectively, between described inner layer wall and outer wall, limit chuck, described chuck goes out pipe 9 with heat carrier inlet pipe 8 and heat carrier respectively and is communicated with to form heat carrier circulation, described heat carrier inlet pipe 8 and heat carrier go out pipe 9 respectively with the export and import that is connected heat carrier heating unit.Heat carrier is wherein liquid, preferably the water of reusable edible and environmentally safe.Circulation by heat carrier is heated bipyramid tank 2, and bipyramid tank 2 wraparound rotating shafts 3 simultaneously rotate to accelerate the evaporation of solvent.Described heat carrier inlet pipe 8 and heat carrier go out pipe 9 and can be communicated with described chuck by swivel joint 10.
Catalyst drying machine in present embodiment also comprises vacuum extractor, be used for taking away the solvent of gasification, this vacuum extractor comprise be arranged on described bipyramid tank 2 inside vacuumizing filtration device 12, be arranged on the vavuum pump of described bipyramid tank 2 outsides and connect the vacuum-pumping tube 11 of described vacuum filter 12 and described vavuum pump.Vacuumizing filtration device 12, for filtering catalyst particle, prevents that this catalyst granules is drawn out of in the process vacuumizing.Present embodiment, by adding vacuum extractor, is extracted the solvent after gasification out, and evaporation rate of solvent is accelerated, thereby has shortened drying time.
Described bipyramid tank 2 is also communicated to respectively air inlet pipe 13 and the escape pipe 14 of described inner chamber, described air inlet pipe 13 is communicated with source of the gas, gas in source of the gas be chosen as not with bipyramid tank 2 in the gas of catalyst reaction, as helium, neon, argon gas, Krypton, xenon, nitrogen, described escape pipe 14 is communicated with exhaust gas processing device, after exhaust gas processing device is processed, empties in atmosphere; Escape pipe 14 also can be communicated with gas collecting apparatus, to recycle solvent, saves the energy.
Described catalyst drying machine comprises the drive unit for driving described bipyramid tank 2, and drive unit can be motor.On described catalyst discharge nozzle 5, solvent discharge pipe 6, vacuum-pumping tube, air inlet pipe and escape pipe, be equipped with control valve, control valve is closed for the connected sum of controlling its place pipeline.
Use the method for catalyst drying machine dry catalyst of the present utility model to be:
Catalyst slurry to be dried is injected to this catalyst drying machine from charging aperture 4, then adjust drying machine angle, make solvent discharge pipe 6 downward vertically in ground, solvent is collected near filter, open the control valve on solvent discharge pipe 6, and open the control valve in air inlet pipe 13, gas in source of the gas enters bipyramid tank 2, thereby catalyst slurry to be dried is carried out to press filtration, a large amount of solvents filter and pass through solvent discharge pipe 6 to recovery system by filter 7, press filtration is when flat (being that the material that solvent delivery pipe 6 is discharged is entirely gas), press filtration is complete can to think solvent, close the control valve on solvent discharge pipe 6.The catalyst of residual minute quantity solvent is deposited in drying machine, the control valve of opening on vacuum-pumping tube carries out vacuum pumping, pass into heat carrier and start drive unit 15 so that bipyramid tank 2 is carried out to heat drying operation in chuck by heat carrier inlet pipe 8, accelerate the gasification rate of solvent by vacuum extractor, thereby shortened drying time.Dry qualified after, close the control valve on vacuum-pumping tube, be 0.05MPa left and right by air inlet pipe 13 to the relative pressure that is pressurized to bipyramid tank 2 inside in catalyst drying machine, open the control valve on catalyst delivery pipe 5, the utility model adopts longitudinal mode to discharge catalyst, catalyst delivery pipe 5 is arranged on to the bottom of bipyramid tank 2 in Fig. 1, therefore dry catalyst after qualified the effect of inside and outside differential pressure and gravity can quickly discharging to container, thereby shortened discharging time.After catalyst is collected, open control valve on escape pipe 14 portion gas in bipyramid tank 2 is discharged, bipyramid tank 2 inner and outer air pressures are equated, so that when next drying process, catalyst to be dried can inject in bipyramid tank 2 smoothly.
Adopt polypropylene catalyst time and the power consumption used of the dry 500L identical component of Horizontal vibration drying machine, taper autoclave drying machine and catalyst drying machine of the present utility model to contrast in table 1.
Contrast table arid cycle of table 13 kind of drying device
| Drying machine type | Horizontal vibration drying machine | Taper autoclave drying machine | Catalyst drying machine |
| Single still arid cycle (minute) | 320 | 810 | 250 |
| The dry total power consumption (degree) of single still | 16.9 | 80 | 12.8 |
Note: the drive unit of three kinds of drying machines all adopts motor, vaccum pump motor power 3KW, Horizontal vibration drying machine power of motor 2KW, taper autoclave drying machine power of motor 4KW, catalyst drying machine power of motor 4KW.Stirring and rotation power consumption are little, ignore not very.
Can find out by table 1, shorten 22% compared with Horizontal vibration drying machine the arid cycle of catalyst drying machine described in the utility model, shortens 69% compared with taper autoclave drying machine, and power consumption declines respectively 24%, 84%.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible combinations.
Claims (10)
1. a catalyst drying machine, is characterized in that, described catalyst drying machine comprises: frame (1), bipyramid tank (2) and the gyroaxis (3) being fixedly connected with described frame (1), and described bipyramid tank (2) can rotate around described gyroaxis (3); Described bipyramid tank (2) has the first cone end and the second cone end, described the first cone end is provided with charging aperture (4), described the second cone end is communicated with catalyst discharge nozzle (5) and solvent discharge pipe (6) respectively, and described solvent discharge pipe (6) is fixed with filter (7) with the position that described the second cone end is communicated with.
2. catalyst drying machine according to claim 1, is characterized in that, one end of described solvent discharge pipe (6) is stretched in described the second cone end, and described filter (7) is removably disposed in this end of described solvent discharge pipe (6).
3. catalyst drying machine according to claim 2, is characterized in that, described filter (7) is sintering silk screen filter.
4. catalyst drying machine according to claim 3, is characterized in that, described sintering silk screen filter comprises filter cloth and is wrapped in the mesh skeleton of described filter cloth both sides.
5. catalyst drying machine according to claim 4, it is characterized in that, described bipyramid tank (2) has inner layer wall and outer wall, described inner layer wall limits inner chamber, described charging aperture (4), catalyst discharge nozzle (5) and solvent discharge pipe (6) are communicated with described inner chamber respectively, between described inner layer wall and outer wall, limit chuck, described chuck goes out pipe (9) with heat carrier inlet pipe (8) and heat carrier respectively and is communicated with to form heat carrier circulation, and described heat carrier inlet pipe (8) goes out pipe (9) with heat carrier and is connected with the export and import of heat carrier heating unit respectively.
6. catalyst drying machine according to claim 5, is characterized in that, described heat carrier inlet pipe (8) and heat carrier go out pipe (9) and be communicated with described chuck by swivel joint (10) respectively.
7. according to the catalyst drying machine described in claim 5 or 6, it is characterized in that, described catalyst drying machine also comprises the air inlet pipe (13) that is communicated to respectively described inner chamber and escape pipe (14) and the source of the gas and the gas collecting apparatus that are communicated with described air inlet pipe (13) and described escape pipe (14) respectively.
8. catalyst drying machine according to claim 7, it is characterized in that, described catalyst drying machine also comprises vacuum extractor, and this vacuum extractor comprises the vacuumizing filtration device (12) that is arranged in described inner chamber, is arranged on the outside vavuum pump of described bipyramid tank (2) and connects the vacuum-pumping tube (11) of described vacuum filter (12) and described vavuum pump.
9. catalyst drying machine according to claim 8, is characterized in that, described catalyst drying machine comprises the drive unit (15) for driving described bipyramid tank (2).
10. catalyst drying machine according to claim 9, is characterized in that, on described catalyst discharge nozzle (5), solvent discharge pipe (6), vacuum-pumping tube (11), air inlet pipe (13) and escape pipe (14), is equipped with control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083778.9U CN203731813U (en) | 2014-02-26 | 2014-02-26 | Catalyst drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083778.9U CN203731813U (en) | 2014-02-26 | 2014-02-26 | Catalyst drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731813U true CN203731813U (en) | 2014-07-23 |
Family
ID=51201881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083778.9U Expired - Lifetime CN203731813U (en) | 2014-02-26 | 2014-02-26 | Catalyst drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731813U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266465A (en) * | 2014-09-29 | 2015-01-07 | 太仓正信干燥设备科技有限公司 | Double-cone dryer supportive of online suction filtering and cleaning |
| CN112619273A (en) * | 2020-12-19 | 2021-04-09 | 安徽金禾实业股份有限公司 | Device and method for recovering solvent from magnesium slag in Grignard section |
| CN116294452A (en) * | 2021-12-20 | 2023-06-23 | 中国石油天然气股份有限公司 | Device for on-line drying catalyst of continuous reforming device and drying method thereof |
-
2014
- 2014-02-26 CN CN201420083778.9U patent/CN203731813U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266465A (en) * | 2014-09-29 | 2015-01-07 | 太仓正信干燥设备科技有限公司 | Double-cone dryer supportive of online suction filtering and cleaning |
| CN112619273A (en) * | 2020-12-19 | 2021-04-09 | 安徽金禾实业股份有限公司 | Device and method for recovering solvent from magnesium slag in Grignard section |
| CN114797262A (en) * | 2020-12-19 | 2022-07-29 | 安徽金禾实业股份有限公司 | Device and method for recovering solvent from magnesium slag in Grignard section |
| CN114797262B (en) * | 2020-12-19 | 2024-03-29 | 安徽金禾实业股份有限公司 | Device and method for recycling solvent from magnesium slag in Grignard section |
| CN116294452A (en) * | 2021-12-20 | 2023-06-23 | 中国石油天然气股份有限公司 | Device for on-line drying catalyst of continuous reforming device and drying method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |