CN108642281A - A method of for three-phase object processing in extraction process and organic phase purification - Google Patents
A method of for three-phase object processing in extraction process and organic phase purification Download PDFInfo
- Publication number
- CN108642281A CN108642281A CN201810830922.3A CN201810830922A CN108642281A CN 108642281 A CN108642281 A CN 108642281A CN 201810830922 A CN201810830922 A CN 201810830922A CN 108642281 A CN108642281 A CN 108642281A
- Authority
- CN
- China
- Prior art keywords
- phase
- extraction
- organic phase
- storage tank
- level
- 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.)
- Pending
Links
- 239000012071 phase Substances 0.000 title claims abstract description 59
- 238000000605 extraction Methods 0.000 title claims abstract description 35
- 239000012074 organic phase Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000000746 purification Methods 0.000 title claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000005119 centrifugation Methods 0.000 claims abstract description 7
- 239000004927 clay Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- 239000002910 solid waste Substances 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 3
- 239000000284 extract Substances 0.000 claims description 9
- 238000009856 non-ferrous metallurgy Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 7
- 238000004070 electrodeposition Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention belongs to wet method nonferrous metallurgy fields, and in particular to a method of for three-phase object processing in extraction process and organic phase purification.Pass through visible-liquid-level liquid level gauge and adjustable drain apparatus, precisely determine the drain position of three-phase object in extraction tank, three-phase object is collected into stirring storage tank I through draw-off pump and is mixed, and continuously it is sent to three phase centrifugation seperator through delivery pump I, you can realize the separation of oil, three kinds of water, solid waste substances；Water phase then returns arranges outside extraction raffinate system, and solid goes waste to handle, and the organic phase after separation is sent to second level stirring storage tank II；Then, it in storage tank II is stirred in the second level plus after activated clay stirring purification, send to centrifuge and detaches through delivery pump II, the organic phase after separation returns to extracting system.The present invention can efficiently realize the processing of extraction three-phase object, organic phase purification, and device stability is good, and safe operation, labor intensity is small, which is suitable for extraction plant large-scale promotion.
Description
Technical field
The invention belongs to wet method nonferrous metallurgy fields, and in particular to one kind is for three-phase object processing in extraction process and has
The method that machine mutually purifies.
Background technology
In recent years, with the continuous development of copper hydrometallurgical technology, extraction process large-scale application is produced in copper electrodeposition.
In extracting production process, three-phase object be primarily present in organic phase, water phase centre, main component be solid suspension, have
The mixture of machine phase and water phase and air, Producing reason is more complicated, in the case that three-phase object is excessive to entirely extracting,
Electrodeposition production system will produce harmful effect, serious to influence extraction and the production of electrodeposition and product quality, or even cause to give birth to
Production accident, therefore removal, the control of three-phase object are the important links in extraction, electrodeposition process.In addition, a good and operation at
Ripe enterprise, organic phase purified treatment are the indispensable links in daily production, and the continuous purification of organic phase is handled, and timely processing is fallen
Various organic phase catabolites so that the organic phase in system is constantly in good state, to be conducive to extraction and
Stripping process controls.
Majority producers are all made of the mode manually salvaged to remove the three-phase in defecator at present, labor intensity is big,
Bad environments, and since the position of three-phase with technique and level fluctuation has uncertain situation, fishing operation control difficulty big；
And general plant design only only accounts for the press filtration processing of three-phase object, and organic phase purification technique is not designed, at this time
If activated clay is added in three-phase mixed processing, clay, which meets water, to fail, and can not reach the treatment effect of organic phase purification.
Invention content
It being used for the method that the processing of three-phase object and organic phase purify in extraction process the purpose of the present invention is to provide a kind of,
Three-phase extraction efficiency is improved, reduces labor intensity, improves working conditions, while the purification of organic phase can be completed again, it will be to stabilization
Production and raising production efficiency have great benefit.
The technical scheme is that：
A method of processing organic phase evolution being extracted for extracting three-phase object, is for extracting three-phase object extraction processing
It is completed in organic phase evolution device, which includes extraction tank, glass plate liquid level gauge, adjustable drain apparatus, band mobile mechanism
Hold-down support, move horizontally track, draw-off pump, stirring storage tank I, delivery pump I, three phase centrifugation seperator, stirring storage tank II, defeated
Pump II and centrifuge are sent, the extraction tank side is equipped with glass plate liquid level gauge and is used cooperatively with adjustable drain apparatus, adjustable
Formula drain apparatus is fixed on the hold-down support with mobile mechanism, and the hold-down support with mobile mechanism can be moved up moving horizontally track
Dynamic, adjustable drain apparatus arrival end is inserted into extraction tank, and outlet end is connect using hose with draw-off pump, draw-off pump successively with stirring
Storage tank I, delivery pump I, three phase centrifugation seperator, stirring storage tank II, delivery pump II are connected with centrifuge；
When work, first, by extract three-phase object extract and organic phase evolution device in visible-liquid-level liquid level gauge and can
Mode drain apparatus precisely determines the drain position of three-phase object in extraction tank, fixes after adjustable drain apparatus through band moving machine
The hold-down support of structure realizes the extraction of level orientation three-phase object on moving horizontally track；
Secondly, three-phase object is collected into stirring storage tank I through draw-off pump and is mixed, and is continuously sent to three-phase through delivery pump I
Centrifugal separator, you can realize the separation of oil, three kinds of water, solid waste substances；Water phase then returns outside extraction raffinate system
Row, solid go waste to handle, and the organic phase after separation is sent to second level stirring storage tank II；
Then, it in storage tank II is stirred in the second level plus after activated clay stirring purification, is sent to centrifuge point through delivery pump II
From the organic phase after separation returns to extracting system.
Beneficial effects of the present invention
The method of the present invention can efficiently realize the processing of extraction three-phase object, organic phase purification, and device stability is good, operation
Safety, labor intensity is small, which is suitable for extraction plant large-scale promotion.
Description of the drawings
Fig. 1 is the present invention for extracting three-phase object extraction processing organic phase evolution apparatus structure schematic diagram.
Specific implementation mode
To keep the purpose of the present invention, content and advantage clearer, below in conjunction with the accompanying drawings, to the specific embodiment party of the present invention
Formula is described in further detail.
Embodiment 1
It is a kind of for extract three-phase object extract and organic phase evolve device, including extraction tank 1, glass plate liquid level gauge 2, can
Mode drain apparatus 3, the hold-down support 4 with mobile mechanism, move horizontally track 5, draw-off pump 6, stirring storage tank I 7, delivery pump I 8,
Three phase centrifugation seperator 9, stirring storage tank II 10, delivery pump II 11 and centrifuge 12, which is characterized in that 1 side of extraction tank
Face is equipped with glass plate liquid level gauge 2 and is used cooperatively with adjustable drain apparatus 3, and adjustable drain apparatus 3 is fixed on mobile mechanism
On hold-down support 4, the hold-down support 4 with mobile mechanism can move on moving horizontally track 5, the entrance of adjustable drain apparatus 3
End be inserted into extraction tank 1 in, outlet end is connect using hose with draw-off pump 6, draw-off pump 6 successively with stir storage tank I 7, delivery pump I 8,
Three phase centrifugation seperator 9, stirring storage tank II 10, delivery pump II 11 and centrifuge 12 connect.
It is as follows that work step is embodied：
In production, it is observed that by the visual liquid level gauge 2 extracted in the device that three-phase object extracts and organic phase is evolved
The delamination of organic phase, water phase and third phase when extracting clarified separation can be adopted when the layering of three-phase object reaches 20mm or more
Adjustable drain apparatus 3 is taken to be extracted.The placement location of adjustable drain apparatus 3 can by under the observation of glass plate liquid level gauge 2 just
It really places, adjustable drain apparatus 3 is solid on the hold-down support 4 with mobile mechanism after location determination, the fixed branch with mobile mechanism
Seat 4 can move on moving horizontally track 5, realize that the three-phase of level orientation extracts.
Visual liquid level gauge 2 touches liquid level keeps layering sight unclear using can hang object phenomenon for a long time in oil phase, three-phase object, water phase
The phenomenon that, when 2 transparent effect of liquid level gauge is bad, extraction tank 1 can be stretched into cotton products mop and is wiped to touching liquid level, really
The accurate positionin of extraction level is protected, glass plate material is high-purity SiO2 or high-strength corrosion-resisting organic glass, is made in extraction
With that will not be corroded in the process, can be used for a long time.
The suction inlet of three-phase object opens wide for three faces, and the size of three-phase suction inlet can be by three-phase object thickness requirement in production technology
It is adjusted, the open length in three faces should as far as possible be amplified according to uninterrupted, it is ensured that three-phase logistics kinetic energy entrance is therewith
Matching, reduction has or machine phase water phase is extracted out by backfill；、
Stirring storage tank I 7 is handled after stirring evenly by the three phase centrifugation seperator 9 of seeing off of delivery pump 8, the solid isolated
Fixed-end forces system, water phase is sent to return to extraction raffinate system after waste collection, organic phase is sent to next stage stirring storage tank II 10.
Organic phase after separation is stirred in stirring storage tank II 10 with clay in proportion mixes purification, and mixed liquor passes through defeated
Send pump II 11 be sent to " filter press (or centrifuge 12) is detached, and fixed-end forces system is sent after the solid waste collection isolated,
Purified organic phase returns to extraction production system.
Claims (1)
1. a kind of for extracting the method that three-phase object extracts and organic phase is evolved, which is characterized in that include the following steps：
The first step, by extract three-phase object extract and organic phase evolution device in visible-liquid-level liquid level gauge (2) and it is adjustable go out
Liquid device (3) precisely determines the drain position of three-phase object in extraction tank (1), is moved by band after fixing adjustable drain apparatus (3)
The hold-down support (4) of mechanism realizes the extraction of level orientation three-phase object on moving horizontally track (5)；
Second step, three-phase object are collected into stirring storage tank I (7) through draw-off pump (6) and are mixed, and are continuously transmitted through delivery pump I (8)
To three phase centrifugation seperator (9), you can realize the separation of oil, three kinds of water, solid waste substances；Water phase then returns to extraction raffinate
It is arranged outside liquid system, solid goes waste to handle, and the organic phase after separation is sent to second level stirring storage tank II (10)；
Third walks, in second level stirring storage tank II (10) plus after activated clay stirring purification, through delivery pump II (11) send to from
Scheming (12) detaches, and the organic phase after separation returns to extracting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830922.3A CN108642281A (en) | 2018-07-26 | 2018-07-26 | A method of for three-phase object processing in extraction process and organic phase purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830922.3A CN108642281A (en) | 2018-07-26 | 2018-07-26 | A method of for three-phase object processing in extraction process and organic phase purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108642281A true CN108642281A (en) | 2018-10-12 |
Family
ID=63760157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810830922.3A Pending CN108642281A (en) | 2018-07-26 | 2018-07-26 | A method of for three-phase object processing in extraction process and organic phase purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108642281A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276910A (en) * | 2018-10-26 | 2019-01-29 | 新疆神邦环境工程有限公司 | A kind of continuous back extraction system |
| CN110407149A (en) * | 2019-07-11 | 2019-11-05 | 西安安森智能仪器股份有限公司 | A kind of lighter hydrocarbons draw-out device |
| CN111074085A (en) * | 2019-12-31 | 2020-04-28 | 中核内蒙古矿业有限公司 | Method and device for recycling three-phase flocculate generated by uranium extraction process |
| CN111647744A (en) * | 2020-07-01 | 2020-09-11 | 四川省冕宁县方兴稀土有限公司 | Method for recovering organic and rare earth from bastnaesite extraction three phases |
| CN114314728A (en) * | 2021-12-22 | 2022-04-12 | 浙江东大生物科技有限公司 | Fumaric acid production sewage treatment plant |
| CN114381620A (en) * | 2022-01-18 | 2022-04-22 | 连云港高品再生资源有限公司 | Horizontal extraction device for rare earth feed liquid |
| CN114875247A (en) * | 2022-04-27 | 2022-08-09 | 重庆康普化学工业股份有限公司 | Treatment method of three-phase substance in copper extraction process |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993016204A2 (en) * | 1992-01-31 | 1993-08-19 | Cognis, Inc. | Process and apparatus for extracting solutes from their aqueous solutions |
| RU2094076C1 (en) * | 1995-11-29 | 1997-10-27 | Научно-исследовательский институт измерительной техники | Method of controlling quality of purification of liquid raw material and production waste from pulse-fed extraction column (versions) |
| RU2108842C1 (en) * | 1996-05-31 | 1998-04-20 | Игорь Михайлович Балакин | Device for extraction processing of uranium-containing solutions of used nuclear fuel |
| CN101629239A (en) * | 2009-07-30 | 2010-01-20 | 浙江华友钴业股份有限公司 | Processing method of third phase of copper extraction system |
| US20130315803A1 (en) * | 2011-01-19 | 2013-11-28 | Institute Of Process Engineering, Chinese Academy Of Sciences | Liquid-liquid-liquid three-phase continuous countercurrent extraction device and use thereof |
| CN204125497U (en) * | 2014-06-11 | 2015-01-28 | 天津市茂联科技有限公司 | A kind of process copper thired extracting phase equipment |
| CN204125502U (en) * | 2014-10-27 | 2015-01-28 | 赣州逸豪优美科实业有限公司 | A kind of third phase Automatic Extraction device for electrodeposited cobalt |
| JP2015157990A (en) * | 2014-02-25 | 2015-09-03 | 住友金属鉱山株式会社 | Method of removing impurity in organic solvent |
| CN206680177U (en) * | 2017-03-14 | 2017-11-28 | 陕西航天德林科技集团有限公司 | A kind of layered extraction device of mixed liquor |
| CN207002818U (en) * | 2017-05-18 | 2018-02-13 | 中国科学院过程工程研究所 | Liquid distributor in a kind of dump leaching heap |
-
2018
- 2018-07-26 CN CN201810830922.3A patent/CN108642281A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993016204A2 (en) * | 1992-01-31 | 1993-08-19 | Cognis, Inc. | Process and apparatus for extracting solutes from their aqueous solutions |
| RU2094076C1 (en) * | 1995-11-29 | 1997-10-27 | Научно-исследовательский институт измерительной техники | Method of controlling quality of purification of liquid raw material and production waste from pulse-fed extraction column (versions) |
| RU2108842C1 (en) * | 1996-05-31 | 1998-04-20 | Игорь Михайлович Балакин | Device for extraction processing of uranium-containing solutions of used nuclear fuel |
| CN101629239A (en) * | 2009-07-30 | 2010-01-20 | 浙江华友钴业股份有限公司 | Processing method of third phase of copper extraction system |
| US20130315803A1 (en) * | 2011-01-19 | 2013-11-28 | Institute Of Process Engineering, Chinese Academy Of Sciences | Liquid-liquid-liquid three-phase continuous countercurrent extraction device and use thereof |
| JP2015157990A (en) * | 2014-02-25 | 2015-09-03 | 住友金属鉱山株式会社 | Method of removing impurity in organic solvent |
| CN204125497U (en) * | 2014-06-11 | 2015-01-28 | 天津市茂联科技有限公司 | A kind of process copper thired extracting phase equipment |
| CN204125502U (en) * | 2014-10-27 | 2015-01-28 | 赣州逸豪优美科实业有限公司 | A kind of third phase Automatic Extraction device for electrodeposited cobalt |
| CN206680177U (en) * | 2017-03-14 | 2017-11-28 | 陕西航天德林科技集团有限公司 | A kind of layered extraction device of mixed liquor |
| CN207002818U (en) * | 2017-05-18 | 2018-02-13 | 中国科学院过程工程研究所 | Liquid distributor in a kind of dump leaching heap |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276910A (en) * | 2018-10-26 | 2019-01-29 | 新疆神邦环境工程有限公司 | A kind of continuous back extraction system |
| CN110407149A (en) * | 2019-07-11 | 2019-11-05 | 西安安森智能仪器股份有限公司 | A kind of lighter hydrocarbons draw-out device |
| CN111074085A (en) * | 2019-12-31 | 2020-04-28 | 中核内蒙古矿业有限公司 | Method and device for recycling three-phase flocculate generated by uranium extraction process |
| CN111647744A (en) * | 2020-07-01 | 2020-09-11 | 四川省冕宁县方兴稀土有限公司 | Method for recovering organic and rare earth from bastnaesite extraction three phases |
| CN111647744B (en) * | 2020-07-01 | 2021-09-21 | 四川省冕宁县方兴稀土有限公司 | Method for recovering organic and rare earth from bastnaesite extraction three phases |
| CN114314728A (en) * | 2021-12-22 | 2022-04-12 | 浙江东大生物科技有限公司 | Fumaric acid production sewage treatment plant |
| CN114381620A (en) * | 2022-01-18 | 2022-04-22 | 连云港高品再生资源有限公司 | Horizontal extraction device for rare earth feed liquid |
| CN114875247A (en) * | 2022-04-27 | 2022-08-09 | 重庆康普化学工业股份有限公司 | Treatment method of three-phase substance in copper extraction process |
| CN114875247B (en) * | 2022-04-27 | 2023-08-15 | 重庆康普化学工业股份有限公司 | Method for treating three-phase substances in copper extraction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108642281A (en) | A method of for three-phase object processing in extraction process and organic phase purification | |
| CN201793456U (en) | Oily sewage treatment system | |
| CN208667806U (en) | A kind of device for the processing of three-phase object and organic phase purification in extraction process | |
| CN204824404U (en) | Tar aqueous ammonia separation clean system | |
| CN202729934U (en) | Collecting and reusing system for glass edge polishing waste water | |
| CN208511941U (en) | A kind of novel oily-water seperating equipment | |
| CN203700456U (en) | Separation and recovery system for extracting organic phases through hydrometallurgy | |
| CN209210952U (en) | A kind of purification device of electrolyte | |
| CN205287866U (en) | A recovery processing device for vacuum pump waste oil | |
| CN212174653U (en) | Complex molybdenum ore oxygen pressure leaching wastewater purification production line meeting production water circulation | |
| CN104738796A (en) | Bean product raw material impurity removing method and device for realizing same | |
| CN211393982U (en) | Tailing sewage treatment equipment | |
| CN209940482U (en) | High-efficient purification equipment of kaolin | |
| CN106242208A (en) | The sludge treating system that a kind of material recovery utilization rate is high | |
| CN102808200A (en) | Electrolysis recovery apparatus | |
| CN207694313U (en) | A kind of automatic float skimming device | |
| CN208151143U (en) | A kind of Rare Earth Production wastewater treatment equipment | |
| CN202099393U (en) | Electrolytic recovery device | |
| CN201558616U (en) | Solid-liquid separator | |
| CN202143801U (en) | Tailing dehydrating device | |
| CN204684792U (en) | For rapidly and efficiently reducing the device of ammonium chloride content in ethenylamidine hydrochloride mother liquor | |
| CN205874119U (en) | System for handle precious metal recovery waste liquid | |
| CN216826638U (en) | Ore dressing system | |
| CN205128587U (en) | Lubricating oil filter cake is handled and recovery system | |
| CN213956944U (en) | Milk powder fatty acid pretreatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181012 |