CN112774607A - Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof - Google Patents

Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof Download PDF

Info

Publication number
CN112774607A
CN112774607A CN202011596071.4A CN202011596071A CN112774607A CN 112774607 A CN112774607 A CN 112774607A CN 202011596071 A CN202011596071 A CN 202011596071A CN 112774607 A CN112774607 A CN 112774607A
Authority
CN
China
Prior art keywords
kettle
kettle body
stirring
feed inlet
thiophene
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
Application number
CN202011596071.4A
Other languages
Chinese (zh)
Inventor
储玉平
蒋彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Diyan Medical Technology Co ltd
Original Assignee
Xuzhou Diyan Medical Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Diyan Medical Technology Co ltd filed Critical Xuzhou Diyan Medical Technology Co ltd
Priority to CN202011596071.4A priority Critical patent/CN112774607A/en
Publication of CN112774607A publication Critical patent/CN112774607A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention belongs to the field of medical intermediate production equipment, and particularly discloses a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials and a working method thereof, wherein the reaction kettle comprises a kettle body (100), a circulating sleeve (110), an air inlet (111), an air outlet (112), a stirring shaft (120), stirring blades (130), stirring blade bulges (131), a temperature measuring head (140), a discharge hole (150), a kettle top (200), a stirring motor (210), a main feed inlet (220), an auxiliary feed inlet (230), a pressure gauge (240) and a controller (250); the reaction kettle disclosed by the invention has the advantages of simple structure, high heating speed, high reaction efficiency and high safety.

Description

Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof
Technical Field
The invention belongs to the field of medical intermediate production equipment, and particularly discloses a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials and a working method thereof.
Background
At present, the synthesis method of organic matters for producing thiophene medical intermediates generally adopts the steps of putting the used raw materials into a reaction kettle for reaction at the same time. Because the reaction kettle for production has large volume, the reaction in a laboratory cannot be amplified linearly well. On the other hand, various reactions of organic synthesis have endotherm or exotherm; therefore, the control of the temperature and the uniform degree of stirring have great effect on the selectivity and yield of the reaction substances. The conventional reaction kettle has poor temperature measurement and control precision, uneven stirring, incomplete reaction, low production efficiency, higher energy consumption of unit yield and no accordance with the green environmental protection idea. An efficient reaction kettle for preparing thiophene medical intermediate raw materials needs to be developed.
Disclosure of Invention
Aiming at the defects, the invention discloses a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials and a working method thereof.
The technical scheme of the invention is as follows:
a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials comprises a kettle body, a circulating sleeve, an air inlet, an air outlet, a stirring shaft, stirring blades, stirring blade bulges, a temperature measuring head, a discharge port, a kettle top, a stirring motor, a main feed port, an auxiliary feed port, a pressure gauge and a controller; the kettle body is hollow cylindrical, the bottom of the kettle body is conical, and the kettle top is arranged above the kettle body; the kettle body is wrapped with the circulating sleeve; the circulating sleeve is hollow; the bottom of the circulating sleeve is provided with the air inlet, and the top of the circulating sleeve is provided with the air outlet; the stirring motor is arranged in the center of the top of the kettle; the main feed port and the auxiliary feed port are respectively arranged on two sides of the stirring motor; the caliber of the main feed inlet is larger than that of the auxiliary feed inlet; the pressure gauge is arranged beside the auxiliary feed port; the controller is arranged on the outer side of the side wall of the kettle body close to the kettle top; the stirring shaft vertically extends into the kettle body from the lower end of the stirring motor; the stirring blades are symmetrically arranged on the stirring shaft; the stirring blade is vertically provided with the stirring blade bulge; a plurality of temperature measuring heads are arranged on the kettle body; the lower end of the kettle body is provided with the discharge hole.
Furthermore, the temperature measuring heads are uniformly distributed on the side wall of the kettle body.
Furthermore, the high-efficiency reaction kettle for preparing the thiophene medical intermediate raw materials is characterized in that the stirring motor is a servo motor.
Furthermore, the efficient reaction kettle for preparing the thiophene medical intermediate raw materials has 5 pairs of stirring blades, and the upper interval and the lower interval are equal.
Furthermore, the stirring blade is made of tungsten steel in the efficient reaction kettle for preparing the thiophene medical intermediate raw materials.
Furthermore, the circulating sleeve of the efficient reaction kettle for preparing the thiophene medical intermediate raw materials is made of aluminum magnesium alloy.
Further, the working method of the efficient reaction kettle for preparing the thiophene medical intermediate raw material comprises the following steps:
1, introducing steam into the circulating sleeve from the air inlet, and introducing the steam out of the air outlet to preheat the kettle body;
2, putting the main synthetic raw material into the kettle body from a main feeding hole, and putting the secondary raw material into the kettle body from an auxiliary feeding hole;
3, closing the feed inlet, heating the kettle body, reacting, and observing the reading of the pressure gauge to prevent overlarge pressure;
and 4, after the reaction is finished, operating the controller to open the discharge hole to obtain a product.
According to the technical scheme, the invention has the following beneficial effects:
the invention discloses a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials, which is ingenious in design and high in integration level, the kettle body is heated by arranging a circulating sleeve which can transfer heat rapidly, the heating speed is high, the heat transfer efficiency is high, and further, a plurality of temperature measuring heads are arranged in the kettle body, so that the temperature measurement is accurate and comprehensive; the servo motor and the stirring blades which are symmetrically arranged are also provided with the stirring blade protrusions, so that the stirring is more uniform, and the reaction is more complete; the yield of the intermediate is high, the production efficiency is high, and the green and environment-friendly effects are good.
Drawings
FIG. 1 is a schematic diagram of a high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials;
wherein: the device comprises a kettle body 100, a circulating sleeve 110, an air inlet 111, an air outlet 112, a stirring shaft 120, stirring blades 130, stirring blade protrusions 131, a temperature measuring head 140, a discharge hole 150, a kettle top 200, a stirring motor 210, a main feed inlet 220, an auxiliary feed inlet 230, a pressure gauge 240 and a controller 250.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw materials shown in fig. 1 is characterized by comprising a kettle body 100, a circulating sleeve 110, an air inlet 111, an air outlet 112, a stirring shaft 120, stirring blades 130, stirring blade protrusions 131, a temperature measuring head 140, a discharge hole 150, a kettle top 200, a stirring motor 210, a main feed inlet 220, an auxiliary feed inlet 230, a pressure gauge 240 and a controller 250; the kettle body 100 is hollow cylindrical, the bottom of the kettle body is conical, and the kettle top 200 is arranged above the kettle body; the kettle body 100 is wrapped with the circulating sleeve 110; the circulation sleeve 110 is hollow; the bottom of the circulation sleeve 110 is provided with the air inlet 111, and the top of the circulation sleeve 110 is provided with the air outlet 112; the stirring motor 210 is arranged in the center of the kettle top 200; the main feed inlet 220 and the auxiliary feed inlet 230 are respectively arranged on two sides of the stirring motor 210; the aperture of the main feed inlet 220 is larger than that of the auxiliary feed inlet 230; the pressure gauge 240 is arranged beside the secondary feed inlet 230; the controller 250 is arranged on the outer side of the side wall of the kettle body 100 close to the kettle top 200; the stirring shaft 120 vertically extends into the kettle body 100 from the lower end of the stirring motor 210; the stirring blades 130 are symmetrically arranged on the stirring shaft 120; the stirring blade 130 is vertically provided with the stirring blade protrusion 131; a plurality of temperature measuring heads 140 are arranged on the kettle body 100; the lower end of the kettle body 100 is provided with the discharge hole 150.
The working method of the high-efficiency reaction kettle for preparing the thiophene medical intermediate raw materials comprises the following steps.
1, introducing steam into the circulating sleeve 110 from the air inlet 111 and discharging the steam from the air outlet 112 to preheat the kettle body 100;
2, feeding a main synthetic raw material into the kettle body 100 from a main feeding hole 220, and feeding a secondary raw material into the kettle body 100 from an auxiliary feeding hole 230;
3, closing the feed inlet, heating the kettle body 100, reacting, and observing the reading of the pressure gauge 240 to prevent overlarge pressure;
4, after the reaction is completed, the controller 250 is operated to open the discharge port 150 to obtain the product.
Example 2
The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw materials shown in fig. 1 is characterized by comprising a kettle body 100, a circulating sleeve 110, an air inlet 111, an air outlet 112, a stirring shaft 120, stirring blades 130, stirring blade protrusions 131, a temperature measuring head 140, a discharge hole 150, a kettle top 200, a stirring motor 210, a main feed inlet 220, an auxiliary feed inlet 230, a pressure gauge 240 and a controller 250; the kettle body 100 is hollow cylindrical, the bottom of the kettle body is conical, and the kettle top 200 is arranged above the kettle body; the kettle body 100 is wrapped with the circulating sleeve 110; the circulation sleeve 110 is hollow; the bottom of the circulation sleeve 110 is provided with the air inlet 111, and the top of the circulation sleeve 110 is provided with the air outlet 112; the stirring motor 210 is arranged in the center of the kettle top 200; the main feed inlet 220 and the auxiliary feed inlet 230 are respectively arranged on two sides of the stirring motor 210; the aperture of the main feed inlet 220 is larger than that of the auxiliary feed inlet 230; the pressure gauge 240 is arranged beside the secondary feed inlet 230; the controller 250 is arranged on the outer side of the side wall of the kettle body 100 close to the kettle top 200; the stirring shaft 120 vertically extends into the kettle body 100 from the lower end of the stirring motor 210; the stirring blades 130 are symmetrically arranged on the stirring shaft 120; the stirring blade 130 is vertically provided with the stirring blade protrusion 131; a plurality of temperature measuring heads 140 are arranged on the kettle body 100; the lower end of the kettle body 100 is provided with the discharge hole 150; preferably, the temperature measuring heads 140 are uniformly distributed on the side wall of the kettle body 100; in particular, the stirring motor 210 is a servo motor; furthermore, there are 5 pairs of stirring blades 130, and the upper and lower intervals are equal; preferably, the stirring blade 130 is made of tungsten steel; in particular, the circulating sleeve 110 is made of aluminum magnesium alloy.
The working method of the high-efficiency reaction kettle for preparing the thiophene medical intermediate raw materials comprises the following steps.
1, introducing steam into the circulating sleeve 110 from the air inlet 111 and discharging the steam from the air outlet 112 to preheat the kettle body 100;
2, feeding a main synthetic raw material into the kettle body 100 from a main feeding hole 220, and feeding a secondary raw material into the kettle body 100 from an auxiliary feeding hole 230;
3, closing the feed inlet, heating the kettle body 100, reacting, and observing the reading of the pressure gauge 240 to prevent overlarge pressure;
4, after the reaction is completed, the controller 250 is operated to open the discharge port 150 to obtain the product.
The above are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and all the equivalent changes and modifications made by the claims and the summary of the invention should be covered by the protection scope of the present patent application.

Claims (7)

1. A high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials is characterized by comprising a kettle body (100), a circulating sleeve (110), an air inlet (111), an air outlet (112), a stirring shaft (120), stirring blades (130), stirring blade bulges (131), a temperature measuring head (140), a discharge hole (150), a kettle top (200), a stirring motor (210), a main feed inlet (220), an auxiliary feed inlet (230), a pressure gauge (240) and a controller (250); the kettle body (100) is in a hollow cylindrical shape, the bottom of the kettle body is in a conical shape, and the kettle top (200) is arranged above the kettle body; the kettle body (100) is wrapped with the circulating sleeve (110); the circulating sleeve (110) is hollow; the bottom of the circulating sleeve (110) is provided with the air inlet (111), and the top of the circulating sleeve (110) is provided with the air outlet (112); the stirring motor (210) is arranged in the center of the kettle top (200); the main feed inlet (220) and the auxiliary feed inlet (230) are respectively arranged on two sides of the stirring motor (210); the caliber of the main feed inlet (220) is larger than that of the auxiliary feed inlet (230); the pressure gauge (240) is arranged beside the auxiliary feed inlet (230); the controller (250) is arranged on the outer side of the side wall of the kettle body (100) close to the kettle top (200); the stirring shaft (120) vertically extends into the kettle body (100) from the lower end of the stirring motor (210); the stirring blades (130) are symmetrically arranged on the stirring shaft (120); the stirring blade (130) is vertically provided with the stirring blade bulge (131); a plurality of temperature measuring heads (140) are arranged on the kettle body (100); the lower end of the kettle body (100) is provided with the discharge hole (150).
2. The high-efficiency reaction kettle for preparing thiophene medical intermediate raw materials according to claim 1, wherein the temperature measuring heads (140) are uniformly distributed on the side wall of the kettle body (100).
3. The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw material as claimed in claim 1, wherein the stirring motor (210) is a servo motor.
4. The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw material as claimed in claim 1, wherein the stirring blades (130) have 5 pairs, and the upper and lower intervals are equal.
5. The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw material as claimed in claim 1, wherein the stirring blade (130) is made of tungsten steel.
6. The high-efficiency reaction kettle for preparing the thiophene medical intermediate raw material as claimed in claim 1, wherein the circulating sleeve (110) is made of aluminum magnesium alloy.
7. The working method of the high-efficiency reaction kettle for preparing the thiophene medical intermediate raw material as claimed in any one of claims 1 to 6, comprising the following steps:
(1) introducing steam into the circulating sleeve (110) from the air inlet (111) and discharging the steam from the air outlet (112), and preheating the kettle body (100);
(2) feeding a main synthetic raw material into the kettle body (100) from a main feeding hole (220), and feeding a secondary raw material into the kettle body (100) from a secondary feeding hole (230);
(3) closing the feed inlet, heating the kettle body (100), reacting, and observing the reading of the pressure gauge (240) to prevent the pressure from being overlarge;
(4) after the reaction is finished, the operation controller (250) opens the discharge hole (150) to obtain a product.
CN202011596071.4A 2020-12-29 2020-12-29 Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof Pending CN112774607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011596071.4A CN112774607A (en) 2020-12-29 2020-12-29 Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011596071.4A CN112774607A (en) 2020-12-29 2020-12-29 Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof

Publications (1)

Publication Number Publication Date
CN112774607A true CN112774607A (en) 2021-05-11

Family

ID=75751408

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011596071.4A Pending CN112774607A (en) 2020-12-29 2020-12-29 Efficient reaction kettle for preparing thiophene medical intermediate raw materials and working method thereof

Country Status (1)

Country Link
CN (1) CN112774607A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204051685U (en) * 2014-09-10 2014-12-31 山东普洛得邦医药有限公司 Cefixime active ester synthesis reactor
CN205599041U (en) * 2016-05-10 2016-09-28 温州中业文化创意发展有限公司 Starch maize crystallization mechanical activation device
CN106492729A (en) * 2016-11-25 2017-03-15 江苏鼎弘环境科技有限公司 A kind of stirred reactor
CN208260750U (en) * 2018-04-08 2018-12-21 四川武胜春瑞医药化工有限公司 Reaction kettle
CN209810150U (en) * 2018-12-21 2019-12-20 泰州市科研精细化工有限公司 Reation kettle of medical intermediate production usefulness with cooling function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204051685U (en) * 2014-09-10 2014-12-31 山东普洛得邦医药有限公司 Cefixime active ester synthesis reactor
CN205599041U (en) * 2016-05-10 2016-09-28 温州中业文化创意发展有限公司 Starch maize crystallization mechanical activation device
CN106492729A (en) * 2016-11-25 2017-03-15 江苏鼎弘环境科技有限公司 A kind of stirred reactor
CN208260750U (en) * 2018-04-08 2018-12-21 四川武胜春瑞医药化工有限公司 Reaction kettle
CN209810150U (en) * 2018-12-21 2019-12-20 泰州市科研精细化工有限公司 Reation kettle of medical intermediate production usefulness with cooling function

Similar Documents

Publication Publication Date Title
CN211463176U (en) High viscosity liquid resin reation kettle
CN106492732A (en) A kind of chemical industry reactor of sediment separate out
CN201912936U (en) Esterification reaction kettle for alkyd
CN207786544U (en) A kind of lithium salts process units
CN202876812U (en) Reaction kettle for producing petrochemical products
CN220176873U (en) A reation kettle for producing bactericide macrolide derivative for fracturing
CN216224396U (en) Reation kettle temperature regulating device of chloroacetic acid production usefulness
CN216219933U (en) A control by temperature change heat transfer formula fermentation cylinder for dairy products preparation
CN210875318U (en) Esterification reaction kettle
CN214716590U (en) Latex polymerization cauldron
CN112441986B (en) Synthesis process of clomazone original drug
CN212713308U (en) A kind of production system of 2-hydroxy-3-naphthoic acid
CN109652307A (en) A kind of fermentation tank
CN210496407U (en) Reaction unit with high-efficient extrinsic cycle pipeline
CN211026267U (en) A reation kettle for CBS production
CN220182783U (en) Automatic production device for phosphoric acid method activated carbon
CN214634091U (en) Rectifying still for producing p-chlorobenzaldehyde
CN213133152U (en) Material disperses abundant reation kettle
CN220657433U (en) Acrylic resin high-pressure reaction kettle device
CN220405640U (en) A hydrogenation cauldron for producing tris (hydroxymethyl) aminomethane
CN117899793A (en) Reaction unit is used in production of hydroxyethyl acrylate
CN216629672U (en) Automatic continuous evaporation production device for clethodim intermediate triketone
CN219502722U (en) Oil displacement agent reation kettle
CN213160719U (en) Continuous production reactor gets thermal system
CN219186932U (en) Polycarbosilane synthetic reaction heater

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: 20210511

RJ01 Rejection of invention patent application after publication