CN106746882A - A kind of slag grinding aid - Google Patents
A kind of slag grinding aid Download PDFInfo
- Publication number
- CN106746882A CN106746882A CN201611129372.XA CN201611129372A CN106746882A CN 106746882 A CN106746882 A CN 106746882A CN 201611129372 A CN201611129372 A CN 201611129372A CN 106746882 A CN106746882 A CN 106746882A
- Authority
- CN
- China
- Prior art keywords
- slag
- grinding aid
- slag grinding
- molasses
- glycerine
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 74
- 238000000227 grinding Methods 0.000 title claims abstract description 49
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 39
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 13
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 13
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 13
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000013379 molasses Nutrition 0.000 claims abstract description 13
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims abstract description 12
- 235000011187 glycerol Nutrition 0.000 claims abstract description 12
- 238000010348 incorporation Methods 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003801 milling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229920003091 Methocel™ Polymers 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/52—Grinding aids; Additives added during grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention relates to a kind of slag grinding aid, belong to slag micropowder additive technology field, the slag grinding aid is mixed by following component according to mass percent：Diethanol monoisopropanolamine 5%~10%, hydroxypropyl methyl cellulose 0.2%~3%, acetic acid 5%~10%, sodium lignin sulfonate 10%~20%, molasses 5%~10%, glycerine 5%~15%, balance of water.The slag grinding aid of the technical scheme can improve slag milling platform and produce, reduces power consumption, the activity index of slag micropowder can be improved again, and there is good adaptability with cement grinding aid, grinding aid cost is reduced on the premise of slag micropowder quality is ensured, with beneficial technique effect and significant practical value.
Description
Technical field
The present invention relates to a kind of slag grinding aid, belong to slag micropowder additive technology field.
Background technology
A kind of metallurgical slag of the molten condition discharged from blast furnace when blast-furnace cinder is manUfaCtUre of pig iron, is the pair of blast furnace ironmaking
Product.Blast-furnace cinder existing more than 80% is processed using water quenching method, color be it is white or faint yellow, granularity 5mm with
Under, constitute basicly stable.Slag in Water Quenching, do not develop completely by its internal crystalline phase, therefore with granularity is small, surface-active
Strong feature.Blast furnace slag has the unbodied vitreous structure and network structure of substantial amounts of activity, amorphous glass
Body accounts for blast furnace slag more than 95%~97%, has hydration activity very high after grinding, now widely applies in cement and Concrete Industry.
The Nomenclature Composition and Structure of Complexes of slag determines that its grinding difficulty is larger, to reduce slag milling cost, improves mill efficiency,
Slag grinding aid is widely used in slag milling enterprise, but slag grinding aid use cost is of a relatively high, and mill efficiency is still carried
High spatial, and current research Main way mostly concentrates on the grinding aid aspect of cement grinding, to being adapted to separate grinding slag
Grinding aid still lack system research.So the development of slag grinding aid has society and economic worth very high.
The content of the invention
The unresolved problem that slag grinding aid high cost, mill efficiency have much room for improvement in the prior art, the invention provides
A kind of slag grinding aid.Concrete technical scheme is as follows：
A kind of slag grinding aid, the slag grinding aid is mixed by following component according to mass percent：Diethanol Dan Yi
Propanolamine 5%~10%, hydroxypropyl methyl cellulose 0.2%~3%, acetic acid 5%~10%, sodium lignin sulfonate 10%~
20%th, molasses 5%~10%, glycerine 5%~15%, balance of water.
Used as the improvement of above-mentioned technical proposal, each component content is in the slag grinding aid：Diethanol monoisopropanolamine
8%th, hydroxypropyl methyl cellulose 2%, acetic acid 8%, sodium lignin sulfonate 12%, molasses 8%, glycerine 10%, balance of water.
As the improvement of above-mentioned technical proposal, chlorion is not contained in the slag grinding aid.
Used as the improvement of above-mentioned technical proposal, incorporation of the slag grinding aid in slag is relative to slag quality
0.1%~0.2%.
Used as the improvement of above-mentioned technical proposal, the slag is grinding blast furnace slag.
The slag grinding aid of above-mentioned technical proposal can improve slag milling platform and produce, reduces power consumption, can improve slag again micro-
The activity index of powder, and there is good adaptability with cement grinding aid, reduced on the premise of slag micropowder quality is ensured
Grinding aid cost, with beneficial technique effect and significant practical value.
Specific embodiment
The invention provides a kind of slag grinding aid, the slag grinding aid is by following component according to mass percent mixing
Into：Diethanol monoisopropanolamine 5%~10%, hydroxypropyl methyl cellulose 0.2%~3%, acetic acid 5%~10%, lignin
Sodium sulfonate 10%~20%, molasses 5%~10%, glycerine 5%~15%, balance of water.Above-mentioned each component content is preferable
It is diethanol monoisopropanolamine 8%, hydroxypropyl methyl cellulose 2%, acetic acid 8%, sodium lignin sulfonate 12%, molasses 8%, third
Triol 10%, balance of water.In the formula, diethanol monoisopropanolamine is used as early strength agent, it is ensured that the intensity of slag, while having
Good grinding-aid effect；Glycerine has preferably dispersiveness, is conducive to the mobility of powder, and improve grinding-aid effect；Hydroxyl
Propyl methocel can improve the plasticity and water-retaining property of powder, effective to preventing crackle, can strengthen strength of cement；Wood
Quality sodium sulfonate has very strong dispersibility, can significantly improve the physical property of powder.Wherein, in above-mentioned slag grinding aid
Chlorion is not contained, so as to avoid follow-up cement products Quality Down after concrete is made.
Incorporation of the above-mentioned slag grinding aid in slag is 0.1%~0.2%, and slag is grinding blast furnace slag.
Below by taking the slag sample of following composition as an example, the properties experiment of slag grinding aid is carried out.
The chemical composition content of the slag sample of table 1（%）
The ground granulated blast furnace slag standard being used in cement and concrete according to GB/T18046-2008 is performed, and slag milling is used
Grinding machine model φ 3.2m × 13m, without roll squeezer, obtained slag micropowder operating mode and physical property are shown in Table 2.
The cement of table 2 and concrete performance table as a comparison
Embodiment one
A agent is prepared according to following mass percent：Diethanol monoisopropanolamine 10%, hydroxypropyl methyl cellulose 2%, acetic acid
10%th, sodium lignin sulfonate 20%, molasses 10%, glycerine 10%, water 38%.Preparation method is as follows：First by sulfomethylated lignin
Sour sodium is added in reactor, and add water stirring 20min~30min, and then to molasses are added in reactor, control temperature is at 50 DEG C
~55 DEG C, constant temperature is stirred until homogeneous state, sequentially adds diethanol monoisopropanolamine, hydroxypropyl methyl cellulose stirring and third
Triol stirs 10min~20min, finally adds acetic acid and stirs, and forms slag grinding aid of the invention.
Embodiment two
B agent is prepared according to following mass percent：Diethanol monoisopropanolamine 8%, hydroxypropyl methyl cellulose 2%, acetic acid
10%th, sodium lignin sulfonate 20%, molasses 10%, glycerine 10%, water 40%, preparation method is with reference to embodiment one.
Embodiment three
C agent is prepared according to following mass percent：Diethanol monoisopropanolamine 10%, hydroxypropyl methyl cellulose 1%, acetic acid
10%th, sodium lignin sulfonate 20%, molasses 10%, glycerine 10%, water 39%, preparation method is with reference to embodiment one.
Example IV
D agent is prepared according to following mass percent：Diethanol monoisopropanolamine 5%, hydroxypropyl methyl cellulose 0.2%, acetic acid
5%th, sodium lignin sulfonate 10%, molasses 5%, glycerine 5%, water 69.8%, preparation method is with reference to embodiment one.
Embodiment five
E agent is prepared according to following mass percent：Diethanol monoisopropanolamine 10%, hydroxypropyl methyl cellulose 3%, acetic acid
10%th, sodium lignin sulfonate 20%, molasses 10%, glycerine 15%, water 32%, preparation method is with reference to embodiment one.
A, B, C agent in embodiment one to five is added according to the 0.15% of slag quality, D agent is according to slag quality
0.1% be added, E agent is added according to the 0.2% of slag quality, and obtained slag micropowder operating mode and physical property are shown in Table
3。
The slag of table 3 adds the physical function parameter after slag grinding aid
Experiment finds that producing efficiency, the activity index of slag micropowder using slag milling platform after slag grinding aid is significantly improved, and
And each component is common commercial reagent, production cost is significantly reduced, good with cement grinding aid compatibility, is favorably improved mixed
Coagulate the long-time stability of soil.
Claims (5)
1. a kind of slag grinding aid, it is characterised in that the slag grinding aid mixed according to mass percent by following component and
Into：Diethanol monoisopropanolamine 5%~10%, hydroxypropyl methyl cellulose 0.2%~3%, acetic acid 5%~10%, lignin
Sodium sulfonate 10%~20%, molasses 5%~10%, glycerine 5%~15%, balance of water.
2. a kind of slag grinding aid as claimed in claim 1, it is characterised in that each component content in the slag grinding aid
For：Diethanol monoisopropanolamine 8%, hydroxypropyl methyl cellulose 2%, acetic acid 8%, sodium lignin sulfonate 12%, molasses 8%,
Glycerine 10%, balance of water.
3. a kind of slag grinding aid as claimed in claim 2, it is characterised in that do not contained in the slag grinding aid chlorine from
Son.
4. a kind of slag grinding aid as claimed in claim 2, it is characterised in that incorporation of the slag grinding aid in slag
Amount is relative to the 0.1%~0.2% of slag quality.
5. a kind of slag grinding aid as claimed in claim 4, it is characterised in that the slag is grinding blast furnace slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129372.XA CN106746882A (en) | 2016-12-09 | 2016-12-09 | A kind of slag grinding aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129372.XA CN106746882A (en) | 2016-12-09 | 2016-12-09 | A kind of slag grinding aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106746882A true CN106746882A (en) | 2017-05-31 |
Family
ID=58874921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129372.XA Pending CN106746882A (en) | 2016-12-09 | 2016-12-09 | A kind of slag grinding aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106746882A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601959A (en) * | 2017-10-23 | 2018-01-19 | 东阿东昌天汇科技有限公司 | Slag micropowder grinding aid and preparation method thereof |
| CN109053024A (en) * | 2018-08-25 | 2018-12-21 | 广州吉前化工有限公司 | A kind of slag grinding aid and preparation method thereof |
| CN109160750A (en) * | 2018-09-29 | 2019-01-08 | 浙江长盈建材科技有限公司 | The steel-making slag powder grinding aid and preparation method thereof of low water usage drops |
| CN109250953A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the steel-making slag powder grinding aid and preparation method thereof of particle aggregation |
| CN114057426A (en) * | 2021-12-22 | 2022-02-18 | 安徽海螺新材料科技有限公司 | Additive for cement production by vertical mill finish grinding process and preparation method thereof |
| CN116063019A (en) * | 2022-12-12 | 2023-05-05 | 上海百奥恒新材料有限公司 | Red mud-based composite admixture and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942324A (en) * | 2012-12-04 | 2013-02-27 | 山东宏艺科技股份有限公司 | Grinding aid for slag cement |
| CN103708756A (en) * | 2013-12-27 | 2014-04-09 | 马鞍山中海新材料有限公司 | Later-period obviously-enhanced cement grinding aid and preparation method thereof |
-
2016
- 2016-12-09 CN CN201611129372.XA patent/CN106746882A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942324A (en) * | 2012-12-04 | 2013-02-27 | 山东宏艺科技股份有限公司 | Grinding aid for slag cement |
| CN103708756A (en) * | 2013-12-27 | 2014-04-09 | 马鞍山中海新材料有限公司 | Later-period obviously-enhanced cement grinding aid and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601959A (en) * | 2017-10-23 | 2018-01-19 | 东阿东昌天汇科技有限公司 | Slag micropowder grinding aid and preparation method thereof |
| CN109053024A (en) * | 2018-08-25 | 2018-12-21 | 广州吉前化工有限公司 | A kind of slag grinding aid and preparation method thereof |
| CN109160750A (en) * | 2018-09-29 | 2019-01-08 | 浙江长盈建材科技有限公司 | The steel-making slag powder grinding aid and preparation method thereof of low water usage drops |
| CN109250953A (en) * | 2018-09-29 | 2019-01-22 | 浙江长盈建材科技有限公司 | Improve the steel-making slag powder grinding aid and preparation method thereof of particle aggregation |
| CN114057426A (en) * | 2021-12-22 | 2022-02-18 | 安徽海螺新材料科技有限公司 | Additive for cement production by vertical mill finish grinding process and preparation method thereof |
| CN114057426B (en) * | 2021-12-22 | 2022-08-26 | 安徽海螺新材料科技有限公司 | Additive for cement production by vertical mill finish grinding process and preparation method thereof |
| CN116063019A (en) * | 2022-12-12 | 2023-05-05 | 上海百奥恒新材料有限公司 | Red mud-based composite admixture and preparation method thereof |
| CN116063019B (en) * | 2022-12-12 | 2024-01-30 | 上海百奥恒新材料有限公司 | Red mud-based composite admixture and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106746882A (en) | A kind of slag grinding aid | |
| CN106316190B (en) | A kind of cement grinding aid and preparation method thereof | |
| CN105271918A (en) | Cement grinding aid and preparation method thereof | |
| CN105399349B (en) | A kind of high activity steel ground-slag and preparation method thereof | |
| CN105669910B (en) | A kind of polycarboxylic-acid cement grinding aid and preparation method | |
| CN102923982A (en) | Liquid composite grinding aid for granulated blast-furnace slag and preparation method thereof | |
| CN107129177A (en) | A kind of anti-chamotte mould polycarboxylate water-reducer and preparation method and the application in concrete | |
| CN104926190B (en) | A kind of composite cement grinding aid | |
| CN107311539A (en) | Building waste baking-free brick and preparation method thereof | |
| CN103031389A (en) | Modified leather finishing agent and preparation method thereof | |
| CN106380110B (en) | A kind of graphene oxide is modified cement grinding aid and preparation method thereof | |
| CN106495583B (en) | The early strong compound steelslag powder as additive of high-performance and its application in concrete batching | |
| CN106396454A (en) | Slag grinding aid and preparation method and application thereof | |
| CN104478276A (en) | Granulated blast furnace slag liquid composite grinding aid | |
| CN104478285B (en) | A kind of it is applied to the activation reinforcing agent of cement concrete, purposes and preparation method thereof | |
| CN102965077B (en) | Powdered ore additive | |
| CN105669054A (en) | Special composite liquid grinding aid for blast furnace slag and preparation method of special composite liquid grinding aid | |
| CN104529381B (en) | A kind of high temperature nickel ferroalloy waste residue is the method that raw material manufactures microlite | |
| CN103936924B (en) | A kind of polymer slag grinding aid and its preparation method and application | |
| CN103570269B (en) | Mineral waste residue liquid composite grinding aid and preparation method thereof | |
| CN102659338A (en) | Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer | |
| CN105154007B (en) | Preparation method and usage method for slag grinding aid mother liquor | |
| CN106542752A (en) | A kind of native polywater mud material and preparation method thereof | |
| CN102584042A (en) | Steel slag compound micro powder and preparation method thereof | |
| CN106675103A (en) | Environment-friendly activated calcium carbonate |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |