CN109609217A - A kind of high fuel value natural gas - Google Patents
A kind of high fuel value natural gas Download PDFInfo
- Publication number
- CN109609217A CN109609217A CN201910021616.XA CN201910021616A CN109609217A CN 109609217 A CN109609217 A CN 109609217A CN 201910021616 A CN201910021616 A CN 201910021616A CN 109609217 A CN109609217 A CN 109609217A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- liquid phase
- tert
- synergistic additives
- high fuel
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Detergent Compositions (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The present invention provides a kind of high fuel value natural gases, including following raw material: purity is higher than the liquid phase Synergistic additives of the natural gas of weight percent 94%, Zhan Qianshu natural gas weight percent 0.1-0.5%；The liquid phase Synergistic additives are made of following raw material, score meter by weight: ozonized ultrapure water 20-30%, anionic polyacrylamide 1.0-5.0%, 3,5- benzyloxy ethyl phenylbutyrate 1.0-5.0%, lauryl sulfate 5.0-10.0%, tert-butyl ferrocene 3.0-8.0%, azodiisobutyronitrile 4.0-6.0%, ethylene glycol monoethyl ether 6.0-12.0%, hydrogen peroxide supply surplus；High fuel value natural gas of the invention improves combustion of natural gas temperature by adding a small amount of liquid phase Synergistic additives；Ignition temperature can achieve 3240-3460 DEG C and it made to have obviously advantage in terms of industrial application.
Description
Technical field
The present invention relates to a kind of high fuel value natural gases, belong to natural gas application technology field.
Background technique
It is most of using propane flammable gas or acetylene gas in industrial combustion gas dosage.It is production to steel mill using acetylene gas
Carbon steel cutting when, be also easy to produce cutting shoulder thawing, phenomena such as dross is more and not easy cleaning, section differential hardening, make to cut
Technique is undesirable, and very big pollution can be caused to environment using acetylene, not environmentally.It when welding, polishes, increases life
Produce cost.
Forbid having begun using acetylene using other fuel instead acetylene in shipbuilding platform in coastal area shipyard
As cutting gas, but due to other fuel such as natural gas, liquefied petroleum gas, propane flammable gas, propylene gas, artificial coal gas, dimethyl ether etc.
Ignition temperature of the fuel in oxygen is lower than 2500 DEG C and cutting speed is slow, undesirable directly as cutting gas, needs plus combustion-supporting
Additive come basic gas is catalyzed, cracking, it is combustion-supporting, change fuel gas buring mode and be allowed in oxygen to promote flame temperature
Burned flame temperature reaches or surmounts 3100 DEG C of acetylene in gas, realizes the purpose of substitution acetylene；But existing combustion-supporting addition
Agent can cause exhaust emission to air, and the calorific value of the various fuel after addition is still insufficiently to serve as combustion gas cutting.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of liquid phase synergy addition for improving combustion heat value
Agent is added in natural gas, so that its ignition temperature is can achieve 3240-3460 DEG C, specifically a kind of high fuel value natural gas.
The present invention is realized by clapping following technical solution, a kind of high fuel value natural gas, including following raw material: pure
Degree is higher than the liquid phase Synergistic additives of the natural gas of weight percent 94%, Zhan Qianshu natural gas weight percent 0.1-0.5%；
The liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water 20-30%, anion are poly-
Acrylamide 1.0-5.0%, 3,5- benzyloxy ethyl phenylbutyrate 1.0-5.0%, lauryl sulfate 5.0-10.0%, tertiary fourth
Base ferrocene 3.0-8.0%, azodiisobutyronitrile 4.0-6.0%, ethylene glycol monoethyl ether 6.0-12.0%, hydrogen peroxide supply surplus；
The preparation method of the liquid phase Synergistic additives, the specific method is as follows: it is micro- that cadmium nanometer being first added into tert-butyl ferrocene
Grain, tert-butyl ferrocene and cadmium nanoparticle after mixing, are penetrated according to mass ratio 1:0.3 using one-dimensional alpha ray low-angle top
Irradiation, one-dimensional alpha ray low-angle top penetrate the energy of irradiation be 42.624MeV~70.584MeV, dosage be 90.255kGy~
130.452kGy, irradiation time are 54.6~79.6 minutes, obtain modified tert-butyl ferrocene；
Anionic polyacrylamide is dissolved in ozonized ultrapure water again, azodiisobutyronitrile, ethylene glycol list are added while stirring
Ether, modified tert-butyl ferrocene, lauryl sulfate and 3,5- benzyloxy ethyl phenylbutyrate prepare mixing liquid
Afterwards, it puts into emulsifier unit and is emulsified；It is eventually adding hydrogen peroxide, liquid phase Synergistic additives can be prepared.
It is further: the purity weight percent 95% of the natural gas.
Further: the liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water
25-28%, anionic polyacrylamide 3.0-4.5%, 3,5- benzyloxy ethyl phenylbutyrate 2.0-3.5%, lauryl sulfate
It is 7.0-8.0%, tert-butyl ferrocene 5.0-6.0%, azodiisobutyronitrile 5.0-6.0%, ethylene glycol monoethyl ether 10.0-11.0%, double
Oxygen water supplies surplus.
Further: the liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water
26.736%, anionic polyacrylamide 3.385%, 3,5- benzyloxy ethyl phenylbutyrate 2.932%, lauryl sulfate
7.486%, tert-butyl ferrocene 5.352%, azodiisobutyronitrile 5.874%, ethylene glycol monoethyl ether 10.463%, hydrogen peroxide are supplied remaining
Amount.
Further: the liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water
27.362%, anionic polyacrylamide 4.125%, 3,5- benzyloxy ethyl phenylbutyrate 2.130%, lauryl sulfate
7.268%, tert-butyl ferrocene 5.359%, azodiisobutyronitrile 5.684%, ethylene glycol monoethyl ether 10.594%, hydrogen peroxide are supplied remaining
Amount.
Beneficial effects of the present invention are as follows: high fuel value natural gas of the invention is by adding a small amount of liquid phase synergy addition
Agent improves combustion of natural gas temperature.Ignition temperature can achieve 3240-3460 DEG C and make it in terms of industrial application with non-
Normal apparent advantage；When to Metal Cutting, punching, heat affected area is small, can ensure that workpiece performance and quality, to high-precision requirement
Part processing is best, such as military product, high-tech product；It is workpiece smooth cut, smooth, on workpiece notch not the side of stepping on, under do not hang
Slag reduces slag hitting process；The use of the efficient natural gas can reduce the discharge of exhaust gas, and emission reduction effect is preferable, without phosphorus, sulphur release,
Nontoxic, tasteless, environmentally friendly purpose is realized in environmental protection, cleaning.
Specific embodiment
Below with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of high fuel value natural gas, including following raw material: natural gas, the Zhan Qianshu natural gas of purity weight percent 94%
The liquid phase Synergistic additives of weight percent 0.458%；
The liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water 20%, anion poly- third
Acrylamide 4.0%, 3,5- benzyloxy ethyl phenylbutyrate 5.0%, lauryl sulfate 8.0%, tert-butyl ferrocene 7.0%, idol
Nitrogen bis-isobutyronitrile 5.0%, ethylene glycol monoethyl ether 10.0%, hydrogen peroxide supply surplus；
The preparation method of the liquid phase Synergistic additives, the specific method is as follows: it is micro- that cadmium nanometer being first added into tert-butyl ferrocene
Grain, tert-butyl ferrocene and cadmium nanoparticle after mixing, are penetrated according to mass ratio 1:0.3 using one-dimensional alpha ray low-angle top
Irradiation, one-dimensional alpha ray low-angle top penetrate the energy of irradiation be 48.367MeV, dosage 96.357kGy, irradiation time 61.6
Minute, obtain modified tert-butyl ferrocene；
Anionic polyacrylamide is dissolved in ozonized ultrapure water again, azodiisobutyronitrile, ethylene glycol list are added while stirring
Ether, modified tert-butyl ferrocene, lauryl sulfate and 3,5- benzyloxy ethyl phenylbutyrate prepare mixing liquid
Afterwards, it puts into emulsifier unit and is emulsified；It is eventually adding hydrogen peroxide, liquid phase Synergistic additives can be prepared.
Embodiment 2
A kind of high fuel value natural gas, including following raw material: natural gas, the Zhan Qianshu natural gas of purity weight percent 95%
The liquid phase Synergistic additives of weight percent 0.35%；
The liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water 26.736%, anion
Polyacrylamide 3.385%, 3,5- benzyloxy ethyl phenylbutyrate 2.932%, lauryl sulfate 7.486%, two cyclopentadienyl of tert-butyl
Iron 5.352%, azodiisobutyronitrile 5.874%, ethylene glycol monoethyl ether 10.463%, hydrogen peroxide supply surplus；
The preparation method of the liquid phase Synergistic additives, the specific method is as follows: it is micro- that cadmium nanometer being first added into tert-butyl ferrocene
Grain, tert-butyl ferrocene and cadmium nanoparticle after mixing, are penetrated according to mass ratio 1:0.3 using one-dimensional alpha ray low-angle top
Irradiation, one-dimensional alpha ray low-angle top penetrate the energy of irradiation be 60.584MeV, dosage 100.562kGy, irradiation time 69.6
Minute, obtain modified tert-butyl ferrocene；
Anionic polyacrylamide is dissolved in ozonized ultrapure water again, azodiisobutyronitrile, ethylene glycol list are added while stirring
Ether, modified tert-butyl ferrocene, lauryl sulfate and 3,5- benzyloxy ethyl phenylbutyrate prepare mixing liquid
Afterwards, it puts into emulsifier unit and is emulsified；It is eventually adding hydrogen peroxide, liquid phase Synergistic additives can be prepared.
Embodiment 3
A kind of high fuel value natural gas, including following raw material: natural gas, the Zhan Qianshu natural gas of purity weight percent 95%
The liquid phase Synergistic additives of weight percent 0.475%；
The liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water 27.362%, anion
Polyacrylamide 4.125%, 3,5- benzyloxy ethyl phenylbutyrate 2.130%, lauryl sulfate 7.268%, two cyclopentadienyl of tert-butyl
Iron 5.359%, azodiisobutyronitrile 5.684%, ethylene glycol monoethyl ether 10.594%, hydrogen peroxide supply surplus.
The preparation method of the liquid phase Synergistic additives, the specific method is as follows: cadmium being first added into tert-butyl ferrocene and receives
Rice particle, tert-butyl ferrocene and cadmium nanoparticle are according to mass ratio 1:0.3, after mixing, using one-dimensional alpha ray low-angle
Irradiation is penetrated on top, and one-dimensional alpha ray low-angle top penetrates that the energy of irradiation is 68.584MeV, dosage 125.452kGy, irradiation time are
72.6 minutes, obtain modified tert-butyl ferrocene；
Anionic polyacrylamide is dissolved in ozonized ultrapure water again, azodiisobutyronitrile, ethylene glycol list are added while stirring
Ether, modified tert-butyl ferrocene, lauryl sulfate and 3,5- benzyloxy ethyl phenylbutyrate prepare mixing liquid
Afterwards, it puts into emulsifier unit and is emulsified；It is eventually adding hydrogen peroxide, liquid phase Synergistic additives can be prepared.
Table 1, embodiment 1-3 fuel gas buring temperature and preheating time comparison
| Combustion gas | Embodiment 1 | Embodiment 2 | Embodiment 3 | Acetylene |
| Ignition temperature/DEG C | 3260 | 3382 | 3473 | 3150 |
| Preheating temperature/s | 25 | 24 | 22 | 16 |
Claims (5)
1. a kind of high fuel value natural gas, it is characterised in that: including following raw material: purity is higher than the day of weight percent 94%
The liquid phase Synergistic additives of right gas, Zhan Qianshu natural gas weight percent 0.1-0.5%；
The liquid phase Synergistic additives are made of following raw material, by weight score meter: ozonized ultrapure water 20-30%, anion are poly-
Acrylamide 1.0-5.0%, 3,5- benzyloxy ethyl phenylbutyrate 1.0-5.0%, lauryl sulfate 5.0-10.0%, tertiary fourth
Base ferrocene 3.0-8.0%, azodiisobutyronitrile 4.0-6.0%, ethylene glycol monoethyl ether 6.0-12.0%, hydrogen peroxide supply surplus；
The preparation method of the liquid phase Synergistic additives, the specific method is as follows: it is micro- that cadmium nanometer being first added into tert-butyl ferrocene
Grain, tert-butyl ferrocene and cadmium nanoparticle after mixing, are penetrated according to mass ratio 1:0.3 using one-dimensional alpha ray low-angle top
Irradiation, one-dimensional alpha ray low-angle top penetrate the energy of irradiation be 42.624MeV~70.584MeV, dosage be 90.255kGy~
130.452kGy, irradiation time are 54.6~79.6 minutes, obtain modified tert-butyl ferrocene；
Anionic polyacrylamide is dissolved in ozonized ultrapure water again, azodiisobutyronitrile, ethylene glycol list are added while stirring
Ether, modified tert-butyl ferrocene, lauryl sulfate and 3,5- benzyloxy ethyl phenylbutyrate prepare mixing liquid
Afterwards, it puts into emulsifier unit and is emulsified；It is eventually adding hydrogen peroxide, liquid phase Synergistic additives can be prepared.
2. high fuel value natural gas according to claim 1, it is characterised in that: the purity weight percent of the natural gas
95%.
3. high fuel value natural gas according to claim 1 or 2, it is characterised in that: the liquid phase Synergistic additives by with
Lower raw material composition, by weight score meter: ozonized ultrapure water 25-28%, anionic polyacrylamide 3.0-4.5%, 3,5- dibenzyl
Oxygroup ethyl phenylbutyrate 2.0-3.5%, lauryl sulfate 7.0-8.0%, tert-butyl ferrocene 5.0-6.0%, two isobutyl of azo
Nitrile 5.0-6.0%, ethylene glycol monoethyl ether 10.0-11.0%, hydrogen peroxide supply surplus.
4. high fuel value natural gas according to claim 3, it is characterised in that: the liquid phase Synergistic additives are by following original
Material composition, by weight score meter: ozonized ultrapure water 26.736%, anionic polyacrylamide 3.385%, 3,5- dibenzyloxy benzene
Ethyl butyrate 2.932%, lauryl sulfate 7.486%, tert-butyl ferrocene 5.352%, azodiisobutyronitrile 5.874%, second
2-ethoxyethanol 10.463%, hydrogen peroxide supply surplus.
5. high fuel value natural gas according to claim 1 or 2, it is characterised in that: the liquid phase Synergistic additives by with
Lower raw material composition, by weight score meter: ozonized ultrapure water 27.362%, anionic polyacrylamide 4.125%, 3,5-, bis- benzyloxy
Base ethyl phenylbutyrate 2.130%, lauryl sulfate 7.268%, tert-butyl ferrocene 5.359%, azodiisobutyronitrile
5.684%, ethylene glycol monoethyl ether 10.594%, hydrogen peroxide supply surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910021616.XA CN109609217A (en) | 2019-01-10 | 2019-01-10 | A kind of high fuel value natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910021616.XA CN109609217A (en) | 2019-01-10 | 2019-01-10 | A kind of high fuel value natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109609217A true CN109609217A (en) | 2019-04-12 |
Family
ID=66016592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910021616.XA Pending CN109609217A (en) | 2019-01-10 | 2019-01-10 | A kind of high fuel value natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109609217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125046A (en) * | 2022-06-23 | 2022-09-30 | 辽宁厚安科技有限公司 | Sulfur-free odorizing agent for natural gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710062A (en) * | 2014-01-02 | 2014-04-09 | 北京大通鸿业科技发展有限公司 | Efficient natural gas |
| WO2014065675A1 (en) * | 2012-10-26 | 2014-05-01 | Sinvent As | Gas hydrate inhibitor, method and use of hyperbranched polyester polyols as gas hydrate inhibitors |
| CN108558957A (en) * | 2018-04-11 | 2018-09-21 | 陕西师范大学 | N- ferrocenyl methyl -3- amino-1,2,4-triazols transient metal complex containing energy and preparation method thereof |
-
2019
- 2019-01-10 CN CN201910021616.XA patent/CN109609217A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014065675A1 (en) * | 2012-10-26 | 2014-05-01 | Sinvent As | Gas hydrate inhibitor, method and use of hyperbranched polyester polyols as gas hydrate inhibitors |
| CN103710062A (en) * | 2014-01-02 | 2014-04-09 | 北京大通鸿业科技发展有限公司 | Efficient natural gas |
| CN108558957A (en) * | 2018-04-11 | 2018-09-21 | 陕西师范大学 | N- ferrocenyl methyl -3- amino-1,2,4-triazols transient metal complex containing energy and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125046A (en) * | 2022-06-23 | 2022-09-30 | 辽宁厚安科技有限公司 | Sulfur-free odorizing agent for natural gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2005076767A3 (en) | Apparatus and method for production of magnecules from water | |
| CN102174337B (en) | Modified alcohol-base environment-protection fuel and preparation method thereof | |
| CN105419890A (en) | Fuel oil additive and preparation method therefor | |
| CN108485727A (en) | A kind of typed high-energy liquid fuel in alcohol group | |
| CN103468339B (en) | Natural gas combustion synergist, natural gas mixture containing same, and preparation method of natural gas mixture | |
| CN103305289B (en) | High-energy low-carbon synthetic fuel for kiln | |
| CN109609217A (en) | A kind of high fuel value natural gas | |
| CN102634393A (en) | Efficiency energy-saving additive for liquefied petroleum cutting gas | |
| CN101319157B (en) | Environment friendly energy conservation fuel and preparation thereof | |
| CN109609218A (en) | A kind of combustion of natural gas synergist | |
| CN101935563B (en) | Heavy diesel energy-saving agent | |
| CN103160348B (en) | A kind of light paraffins fuel gas rare earth catalyst synergist and preparation method thereof and application | |
| CN106244270A (en) | A kind of natural gas for cutting metal | |
| CN108003944A (en) | A kind of biomass synthetic fuel | |
| CN104877730A (en) | Environment-friendly coal-saving agent | |
| CN104877722B (en) | Natural gas metal cutting gas | |
| CN108728179A (en) | A kind of high heating value hydrogen energy fuel and the preparation method and application thereof | |
| CN101418242B (en) | Energy-saving fuel oil and preparation method thereof | |
| CN108251171A (en) | A kind of automobile power additive and preparation method thereof | |
| CN101497830A (en) | Efficient environment-friendly energy-saving diesel fuel additive | |
| CN101314740B (en) | High-efficiency environment friendly energy-conservation gasoline additive | |
| CN103320191A (en) | Natural gas gaining agent and preparation method thereof | |
| MX2022008221A (en) | Marine fuel composition. | |
| CN107619691A (en) | A kind of environment protecting energy-saving agent | |
| CN114686276A (en) | Methanol composite liquid fuel capable of realizing delayed combustion 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |