CN106810295A - A kind for the treatment of technology for precipitating coal slime and gangue - Google Patents
A kind for the treatment of technology for precipitating coal slime and gangue Download PDFInfo
- Publication number
- CN106810295A CN106810295A CN201710080574.8A CN201710080574A CN106810295A CN 106810295 A CN106810295 A CN 106810295A CN 201710080574 A CN201710080574 A CN 201710080574A CN 106810295 A CN106810295 A CN 106810295A
- Authority
- CN
- China
- Prior art keywords
- gangue
- coal slime
- ball milling
- stirred
- precipitation
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
- C04B33/1322—Red mud
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind for the treatment of technology for precipitating coal slime and gangue, according to mass ratio is 1 by the precipitation coal slime after ball milling, gangue, red mud, kaolin and sodium tetraborate:1:4:1:1 ratio mixing and stirring；Add water and stir into slurry；With lauryl sodium sulfate as foaming agent, the foams mix body that will be stirred is poured into mould, is then conserved 3~5 days under normal temperature of the humidity more than 80%, the then demoulding；Demolded article is dried under the conditions of 105 ± 0.5 DEG C, 110 DEG C of 20~40min of insulation in electric furnace are put into, then 450 DEG C is risen to 20 DEG C/min, 30~60min of pre-burning, then 1050~1200 DEG C of 60~70min of roasting are risen to 20 DEG C/min；It is slowly cooled to room temperature after the completion of roasting, is made porous ceramics brick.
Description
Technical field
The present invention relates to environmental technology field, especially a kind for the treatment of technology for precipitating coal slime and gangue.
Background technology
Coal mining enterprise will discharge substantial amounts of underground sewage in generating process, and the various pollutions such as coal, rock dust are contained in sewage
Thing, the most coal mining enterprise of sewage externally arranged is pre-processed by the way of precipitation, and sewage is produced greatly during precipitation
The precipitation coal slime of amount, this kind of precipitation coal slime has the characteristics that：Fine size, fraction of particle are more, especially less than the particulate of 200 mesh
Account for 70%~90%；Content of ashes is high, and caloric value is relatively low；Stickiness is big, due to containing more clay class ore deposit in precipitation coal slime
Thing, granularmetric composition is thin in addition, so most of coal slime stickiness are big, what is had also has certain mobility.Due to these characteristics, lead
Cause stacking, storage and the transport of coal slime all relatively difficult.Especially when storing up, its form is extremely unstable, and it is to be lost in meet water, wind
It is dry to fly upward.Result not only wastes the coal resources of preciousness, and causes serious environmental pollution, even constrains sometimes
The normal production of enterprise, one as coal enterprise more stubborn problem.
Because precipitation coal slime has many unfavorable conditions such as high-moisture, high viscosity, retentiveness high and low heat value, it is difficult to realize
Commercial Application, is kept outside of the door by user for a long time, is mainly main outlet with civilian pin.And in recent years, coal in China yield by
Gradually rise, the yield for precipitating coal slime also increases sharply, Market Situation also there occurs great changes, coal production capacity surplus precipitates coal
Mud is even more hopeless, thus the treatment of precipitation coal slime, using having turned into problem in the urgent need to address.
Precipitation coal slime can prepare haydite and ceramsite hollow bricks as raw material, and compared with clay solid brick, haydite is empty
Heart brick have performance higher, be in particular in that intensity is high, light weight, with anti seismic efficiency and also also have insulation and heat-insulated work(
Can, based on above various advantages, ceramsite hollow bricks, as green building material, are a kind of new environmentally friendly materials, can not only
Reduce energy consumption, and treatment to precipitating coal slime proposes a kind of effective utilization approaches, reduction environmental pollution, from entirety
From the point of view of, environment-friendly material is prepared into by by precipitation coal slime, either economic benefit or social benefit have all been lifted.
Coal mining enterprise also produces substantial amounts of gangue in generating process, gangue be tunnel, exploit and coal washing during
The solid waste of discharge, it is the mixture of carbonaceous, shale and arenaceous shale, with low heating value, carbon containing 20%~30%, have
Contain humic acid a bit.China has accumulated gangue about 1000Mt for many years, and continues to discharge about 100Mt every year, not only piles up and accounts for
Ground, and spontaneous combustion contaminated air or fire can also be caused.The most air storage of gangue, larger pollution is produced to environment, because
This gangue is also the problem of enterprise's urgent need to resolve.
The content of the invention
The technical problem to be solved in the present invention is：The present invention proposes a kind for the treatment of technology for precipitating coal slime and gangue, system
For novel porous Ceramic Tiles are gone out, porous ceramics brick may be used on the multiple fields such as building, municipal administration, solve precipitation coal slime and gangue
Process problem, realize the recycling of waste.
The technical solution adopted for the present invention to solve the technical problems is：Treatment technology of the invention is real as follows
Apply：
Method one
(1) the sieving of dry precipitation coal slime, ball milling；
(2) the sieving of dry gangue, ball milling；
(3) by the precipitation coal slime after ball milling, gangue, red mud, kaolin and sodium tetraborate according to mass ratio be 1:
1:4:1:1 ratio mixing and stirring；
(4) mixture after stirring is added water and stirs into slurry；
(5) with lauryl sodium sulfate as foaming agent, 1% of mixing weight in (3) foaming agent is put into water, so
After stir, the solution that will be stirred pours into foaming machine, then start foaming machine foamed；
(6) foams mix that step (4) finish mix slurry is made with step (5), 2 are stirred with mixer~
5min, the foams mix body that then will be stirred is poured into mould, maintenance 3~5 days under normal temperature of the humidity more than 80%, then
The demoulding；
(7) demolded article in (6) is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, protected under the conditions of 110 DEG C
20~40min of temperature, then rises to 450 DEG C with 20 DEG C/min, 30~60min of pre-burning, then rises to 1050~1200 with 20 DEG C/min
DEG C roasting 60~70min；
(8) it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick.
Method two
1. precipitation coal slime and gangue ball milling；
2. waste glass crushing is milled；
3. by the precipitation coal slime after ball milling, gangue, waste glass powder, aqueous 10~20% starch according to mass ratio
It is 2:2:6:1 ratio mixing and stirring is into mixture；
4. addition step 3. it is middle mixing weight 1% boric acid, stir；
5. add again step 3. it is middle mixing weight 1% calcium carbonate, be then stirred into compound；
6. the compound that 5. step makes is poured into compressing tablet groove, then setting pressure dry-pressing, and start tablet press machine is carried out
Compressing tablet, compression rate is 1kN/s, and the dwell time is 20~40min, after waiting pressure release, takes out compressing tablet product；
7. the compressing tablet product in 6. is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, be incubated under the conditions of 110 DEG C
20~40min, then rises to 450 DEG C with 20 DEG C/min, 30~60min of pre-burning, then rises to 1050~1200 DEG C with 20 DEG C/min
60~70min of roasting；
8. it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick.
The beneficial effects of the invention are as follows using coal slime, gangue, waste glass powder is precipitated for raw material, using roasting technique, system
It is standby go out porous ceramics brick, so precipitation coal slime, gangue, waste glass powder are carried out roasting resource can solve precipitation coal slime,
Harm of the gangue to environment, can make full use of resource again, turn waste into wealth, and this all has huge to country, society and environment
Benefit.
Specific embodiment
The present invention prepares porous ceramics brick using coal slime, gangue is precipitated for raw material uses roasting technique, has both sought to sink
The recycling of shallow lake coal slime, gangue, can also avoid precipitating the pollution of coal slime, gangue to environment, preserve the ecological environment.
Embodiment 1
(1) the sieving of dry precipitation coal slime, ball milling；
(2) the sieving of dry gangue, ball milling；
(3) by the precipitation coal slime after ball milling, gangue, red mud, kaolin and sodium tetraborate according to mass ratio be 1:
1:4:1:1 ratio mixing and stirring；
(4) mixture after stirring is added water and stirs into slurry；
(5) with lauryl sodium sulfate as foaming agent, 1% of mixing weight in (3) foaming agent is put into water, so
After stir, the solution that will be stirred pours into foaming machine, then start foaming machine foamed；
(6) foams mix that step (4) finish mix slurry is made with step (5), is stirred 5min, so with mixer
The foams mix body that will be stirred afterwards is poured into mould, is then conserved 3 days under normal temperature of the humidity more than 80%, the then demoulding；
(7) demolded article in (6) is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, be incubated at 110 DEG C
30min, then rises to 450 DEG C with 20 DEG C/min, and then pre-burning 50min rises to 1200 DEG C of roasting 70min with 20 DEG C/min；
(8) it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick.
Embodiment 2
(1) precipitation coal slime and gangue ball milling；
(2) waste glass crushing is milled；
(3) it is according to mass ratio by the precipitation coal slime after ball milling, gangue, waste glass powder, aqueous 13% starch
2:2:6:1 ratio mixing and stirring；
(4) mix the 1% of weight boric acid in addition (3), stir；
(5) mix the 1% of weight calcium carbonate in addition (3), then stir；
(6) compound that step (5) makes is poured into compressing tablet groove, then sets pressure dry-pressing, and start tablet press machine
Row compressing tablet, compression rate is 1kN/s, and the dwell time is 30min, after waiting pressure release, takes out compressing tablet product；
(7) the compressing tablet product in (6) is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, be incubated at 110 DEG C
40min, then rises to 450 DEG C with 20 DEG C/min, and then pre-burning 60min rises to 1100 DEG C of roasting 60min with 20 DEG C/min；
(8) it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick.
With above-mentioned according to desirable embodiment of the invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (1)
1. a kind for the treatment of technology for precipitating coal slime and gangue, it is characterised in that：Implement in accordance with the following steps；
Method one：
(1) the sieving of dry precipitation coal slime, ball milling；
(2) the sieving of dry gangue, ball milling；
(3) by the precipitation coal slime after ball milling, gangue, red mud, kaolin and sodium tetraborate according to mass ratio be 1:1:4:
1:1 ratio mixing and stirring；
(4) mixture after stirring is added water and stirs into slurry；
(5) with lauryl sodium sulfate as foaming agent, 1% of mixing weight in (3) foaming agent is put into water, is then stirred
Mix uniform, the solution that will be stirred pours into foaming machine, then start foaming machine and foamed；
(6) foams mix that step (4) finish mix slurry is made with step (5), is stirred 2~5min, so with mixer
The foams mix body that will be stirred afterwards is poured into mould, is conserved 3~5 days under normal temperature of the humidity more than 80%, the then demoulding；
(7) demolded article in (6) is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, 20 are incubated under the conditions of 110 DEG C
~40min, then rises to 450 DEG C with 20 DEG C/min, 30~60min of pre-burning, then rises to 1050~1200 DEG C of roastings with 20 DEG C/min
Burn 60~70min；
(8) it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick；
Method two：
1. precipitation coal slime and gangue ball milling；
2. waste glass crushing is milled；
3. it is 2 according to mass ratio by the precipitation coal slime after ball milling, gangue, waste glass powder, aqueous 10~20% starch:
2:6:1 ratio mixing and stirring is into mixture；
4. addition step 3. it is middle mixing weight 1% boric acid, stir；
5. add again step 3. it is middle mixing weight 1% calcium carbonate, be then stirred into compound；
6. the compound that 5. step makes is poured into compressing tablet groove, then setting pressure dry-pressing, and start tablet press machine carries out compressing tablet,
Compression rate is 1kN/s, and the dwell time is 20~40min, after waiting pressure release, takes out compressing tablet product；
7. the compressing tablet product in 6. is dried under the conditions of 105 ± 0.5 DEG C, is put into electric furnace, it is incubated 20 under the conditions of 110 DEG C~
40min, then rises to 450 DEG C with 20 DEG C/min, 30~60min of pre-burning, then rises to 1050~1200 DEG C of roastings with 20 DEG C/min
60~70min；
8. it is slowly cooled to room temperature after the completion of being calcined, is made porous ceramics brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080574.8A CN106810295A (en) | 2017-02-15 | 2017-02-15 | A kind for the treatment of technology for precipitating coal slime and gangue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080574.8A CN106810295A (en) | 2017-02-15 | 2017-02-15 | A kind for the treatment of technology for precipitating coal slime and gangue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106810295A true CN106810295A (en) | 2017-06-09 |
Family
ID=59111059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710080574.8A Pending CN106810295A (en) | 2017-02-15 | 2017-02-15 | A kind for the treatment of technology for precipitating coal slime and gangue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106810295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484352A (en) * | 2020-04-23 | 2020-08-04 | 北京诠道科技有限公司 | Light heat-insulating brick and preparation method thereof |
| CN115368112A (en) * | 2022-08-25 | 2022-11-22 | 兴县经开区铝镁新材料研发有限公司 | Sintered gangue water permeable brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674788A (en) * | 2011-06-22 | 2012-09-19 | 北京建工华创科技发展股份有限公司 | Coal gangue building board and preparation method thereof |
| CN103553699A (en) * | 2013-10-25 | 2014-02-05 | 东北大学 | Method for preparing foam heat-insulating material from barren coal gangue industrial waste |
| CN104030719A (en) * | 2014-06-21 | 2014-09-10 | 吕剑明 | Method for producing ceramsite by using sludge |
| CN105315007A (en) * | 2015-12-08 | 2016-02-10 | 舒新前 | Method for preparing light porous material by coal gangue |
-
2017
- 2017-02-15 CN CN201710080574.8A patent/CN106810295A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674788A (en) * | 2011-06-22 | 2012-09-19 | 北京建工华创科技发展股份有限公司 | Coal gangue building board and preparation method thereof |
| CN103553699A (en) * | 2013-10-25 | 2014-02-05 | 东北大学 | Method for preparing foam heat-insulating material from barren coal gangue industrial waste |
| CN104030719A (en) * | 2014-06-21 | 2014-09-10 | 吕剑明 | Method for producing ceramsite by using sludge |
| CN105315007A (en) * | 2015-12-08 | 2016-02-10 | 舒新前 | Method for preparing light porous material by coal gangue |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484352A (en) * | 2020-04-23 | 2020-08-04 | 北京诠道科技有限公司 | Light heat-insulating brick and preparation method thereof |
| CN111484352B (en) * | 2020-04-23 | 2022-07-08 | 北京诠道科技有限公司 | Light heat-insulating brick and preparation method thereof |
| CN115368112A (en) * | 2022-08-25 | 2022-11-22 | 兴县经开区铝镁新材料研发有限公司 | Sintered gangue water permeable brick and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102826827B (en) | A kind of with ceramic polished slag be major ingredient sintering pitchers brick and production method thereof | |
| CN108821671B (en) | Full-industrial solid waste high-strength ready-to-use foamed concrete material and preparation method thereof | |
| CN105272006A (en) | Red mud autoclaved aerated concrete building block and preparation method of red mud autoclaved aerated concrete building block | |
| CN103588449A (en) | Method for preparing steam-pressing bricks from multiple raw mineral materials | |
| CN102910889A (en) | Aerated concrete wall material containing river silt and preparation method thereof | |
| CN102807349A (en) | Foamed concrete building block made of waste residues of ceramics and method for manufacturing foamed concrete building block | |
| CN106365603B (en) | A kind of preparation method of fly ash base Imitation Rock Porcelain Tiles | |
| CN101586375B (en) | High volume fly ash cavity block manufacturing method | |
| CN108821621A (en) | A kind of light high-strength haydite and preparation method | |
| CN108129160A (en) | A kind of light heat-insulation wall material and preparation method thereof | |
| CN106187299B (en) | A method of hollow brick is manufactured using building waste | |
| CN108275944B (en) | Environment-friendly brick prepared from construction waste micro powder-reclaimed sand and preparation method thereof | |
| CN106116390A (en) | A kind of unburned cement-free environmental protection brick and production method thereof | |
| CN108298890A (en) | A kind of novel energy-saving environment-friendly brick and preparation method thereof | |
| CN104098306B (en) | A kind of baking-free water-permeable brick and preparation method thereof | |
| CN108706944B (en) | Phosphogypsum light board prepared from barium slag and preparation method thereof | |
| CN106810295A (en) | A kind for the treatment of technology for precipitating coal slime and gangue | |
| CN106866176A (en) | A kind for the treatment of technology of leather-making mud and gangue | |
| CN106866091A (en) | The system and method that a kind of utilization mineralized waste prepares building 3D printing material | |
| CN111559896A (en) | Foaming phosphogypsum building block and preparation method thereof | |
| CN103193438A (en) | Fly ash self-heat-preservation building block | |
| CN114591013B (en) | Artificial aggregate of river sludge and preparation method thereof | |
| CN108164241A (en) | A kind of novel environment friendly concrete brick and preparation method thereof | |
| CN107879682A (en) | A kind of aerated bricks and its processing method using slag as matrix | |
| CN112299811B (en) | Soil curing agent for road base and preparation method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170609 |