CN114516659A - Equipment and method for producing sodium pyroantimonate by pure oxygen oxidation method - Google Patents
Equipment and method for producing sodium pyroantimonate by pure oxygen oxidation method Download PDFInfo
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- CN114516659A CN114516659A CN202210364938.6A CN202210364938A CN114516659A CN 114516659 A CN114516659 A CN 114516659A CN 202210364938 A CN202210364938 A CN 202210364938A CN 114516659 A CN114516659 A CN 114516659A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G30/00—Compounds of antimony
- C01G30/02—Antimonates; Antimonites
- C01G30/023—Antimonates; Antimonites of ammonium, alkali or alkaline-earth metals or magnesium
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- 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
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- 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
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Abstract
The invention discloses a device and a method for producing sodium pyroantimonate by a pure oxygen oxidation method, which belong to the technical field of sodium pyroantimonate production and comprise the following steps: the reaction kettle mechanism, the centrifugal mechanism and the drying mechanism are sequentially arranged from top to bottom; the reaction kettle mechanism comprises a reaction kettle shell, an inlet pipe inserted into one side of the top of the reaction kettle shell and a transmission motor arranged at the center of the top of the reaction kettle shell, wherein the output end of the transmission motor penetrates through the top of the reaction kettle shell and is coaxially connected with a rotating rod, the side wall of the rotating rod is uniformly connected with a plurality of stirring plates, the top and the bottom of each stirring plate are uniformly connected with a plurality of auxiliary plates, and the stirring plates are connected with a connecting plate between one side of the stirring plate away from the rotating rod. This equipment of pure oxygen oxidation process production sodium pyroantimonate, the reaction efficiency in the reation kettle casing is higher, and also higher to the utilization ratio of raw materials to and area is littleer, more practice thrift the space.
Description
Technical Field
The invention belongs to the technical field of sodium pyroantimonate production, and particularly relates to equipment for producing sodium pyroantimonate by a pure oxygen oxidation method and a production method of the equipment for producing the sodium pyroantimonate by the pure oxygen oxidation method.
Background
Sodium pyroantimonate is mainly used as a clarifying agent of a glass bulb of a picture tube, is also used as a flame retardant of textiles, plastics and building materials, is dissolved in tartaric acid, concentrated sulfuric acid and the like, is slightly soluble in alcohol and ammonium salt, is insoluble in acetic acid, diluted alkali and diluted inorganic acid, is mainly prepared by a wet method, and needs to be continuously improved in production equipment and method in order to improve the production efficiency.
For example, application number is CN 201620924655.2's a reation kettle for production of pyroantimonic acid sodium, including the reation kettle body, the inner chamber of the reation kettle body is provided with agitated vessel, and the top of the reation kettle body has been seted up into antimonous oxide mouth, water inlet, has advanced hydrogen peroxide mouth, exhaust duct and observation hole, and the rotation observation lamp is still installed at the top of the reation kettle body, the external surface adhesion of reation kettle installs the cooling water pipe, and the bottom is provided with the discharge gate, agitated vessel comprises U type puddler and first motor, and the upper surface at the reation kettle body is installed to first motor, and the (mixing) shaft is connected to the output of first motor, and screw fixed mounting U type puddler is passed through to the bottom of (mixing) shaft. This a reation kettle for production of pyroantimonic acid sodium, dust are collected dust collection device through the dust absorber, and dust collection device one side alkali lye is imported, reacts through washing equipment alkali lye and dust, dissolves the dust, handles the dust to the effectual problem of having solved among the prior art many difficult clearance of dust.
However, the existing device has the problems that the reaction efficiency in the reaction kettle shell is not high enough, and the utilization rate of raw materials is not high enough.
Disclosure of Invention
The invention aims to provide equipment for producing sodium pyroantimonate by a pure oxygen oxidation method, which solves the problems in the background art.
The technical scheme is as follows: an apparatus for producing sodium pyroantimonate by a pure oxygen oxidation method, comprising:
the reaction kettle mechanism, the centrifugal mechanism and the drying mechanism are sequentially arranged from top to bottom;
the reation kettle mechanism includes the reation kettle casing, pegs graft at the inlet pipe of reation kettle casing top one side and installs the drive motor at reation kettle casing top center, drive motor's output runs through the top and the coaxial coupling of reation kettle casing has the bull stick, the lateral wall of bull stick evenly is connected with a plurality of stirring boards, the top and the bottom of stirring board evenly are connected with a plurality of subplates, and are a plurality of it keeps away from to stir the board and is connected with the connecting plate between the one side of bull stick, the opposite side of connecting plate evenly bonds and has the brush hair of support at reation kettle casing inboard.
In a further embodiment, the centrifugal mechanism comprises a centrifugal machine shell installed at the bottom of the reaction kettle shell, a first connecting pipe is inserted between the centrifugal machine shell and the reaction kettle shell, a centrifugal motor is installed at the center of the bottom of the centrifugal machine shell, the output end of the centrifugal motor penetrates through the bottom of the centrifugal machine shell and is provided with a centrifugal inner shell, a plurality of filtering holes are uniformly formed in the bottom of the side wall of the centrifugal inner shell, and a discharge pipe is inserted into one side of the bottom of the centrifugal inner shell.
In a further embodiment, a storage shell is arranged on the outer wall of one side of the centrifuge shell, a second connecting pipe is inserted between the storage shell and the centrifuge shell, a first return pipe is inserted between the inner side of the storage shell and the corresponding side wall of the reaction kettle shell, and a first return pump is arranged on the side wall of the first return pipe.
In a further embodiment, a second return pipe is inserted between the corresponding side walls of the centrifuge shell and the reaction kettle shell, a second return pump is installed on the two side walls of the return pipe, and a liquid adding pipe corresponding to the centrifuge inner shell is inserted on the upper portion of one side wall of the centrifuge shell.
In a further embodiment, the drying mechanism comprises four support columns arranged at four corners of the bottom of the centrifuge shell and a bottom plate arranged between the bottoms of the four support columns, the drying shell is arranged at the top of the bottom plate, and a third connecting pipe is inserted between the drying shell and the corresponding side wall of the centrifuge shell.
In a further embodiment, the electric heating plate is embedded in the inner side wall of the drying shell, the air heater is installed on the upper portion of one side wall of the drying shell, the output end of the air heater is communicated with the inner cavity of the drying shell, and the exhaust pipe is inserted into one side of the top of the drying shell.
In a further embodiment, a discharge hole is formed in one side wall of the drying shell, and a blocking plate is inserted in the discharge hole.
A production method of equipment for producing sodium pyroantimonate by a pure oxygen oxidation method comprises the following specific steps:
s1: pulping and oxidizing crystallization: sequentially putting a plurality of reaction raw materials into the reaction kettle shell and continuously stirring for reaction to prepare alkali liquor of mixed sodium antimonate;
s2: centrifugal filtration: discharging alkali liquor into a centrifugal mechanism for centrifugal filtration, discharging filtrate into a storage shell, refluxing the filtrate into the reaction kettle shell through a first backflow pipe for recycling, adding soft water into the residual wet sodium antimonate after filtration for washing, and refluxing the washing water into the reaction kettle shell through a second backflow pipe for recycling;
s3: fully drying: discharging the washed wet sodium antimonate into a drying shell for full drying, and obtaining a required sodium pyroantimonate product after drying;
s4: raw material recovery: and taking out the obtained sodium antimonate, screening, and then putting the first-class product into the reaction kettle shell again for circulation, wherein the high-class product can be packaged and put in storage.
The invention has the technical effects and advantages that: according to the equipment for producing the sodium pyroantimonate by the pure oxygen oxidation method, the stirring plates are matched with the auxiliary plates on the side walls of the stirring plates for stirring, and the bristles can brush down raw materials adhered to the inner wall of the reaction kettle shell, so that the reaction efficiency in the reaction kettle shell is higher;
filtrate, washing water and unqualified sodium pyroantimonate are all put into the reaction kettle shell again for reuse, and the utilization rate of raw materials is higher;
three groups of mechanisms are stacked for installation, and compared with the traditional installation mode, the floor area is smaller, and the space is saved;
this equipment of pure oxygen oxidation process production sodium pyroantimonate, the reaction efficiency in the reation kettle casing is higher, and also higher to the utilization ratio of raw materials to and area is littleer, more practice thrift the space.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2
FIG. 4 is an enlarged view taken at B of FIG. 2 in accordance with the present invention;
FIG. 5 is a cross-sectional view of a drying enclosure of the present invention;
FIG. 6 is a flow chart of the steps of the present invention.
In the figure: 1. a reaction kettle mechanism; 2. a centrifugal mechanism; 3. a drying mechanism; 4. a reaction kettle shell; 5. a drive motor; 6. a feeding pipe; 7. a rotating rod; 8. stirring the plate; 9. a sub-board; 10. a connecting plate; 11. brushing; 12. a leak hole; 13. a centrifuge housing; 14. a centrifugal motor; 15. centrifuging the inner shell; 16. filtering holes; 17. a storage housing; 18. a first return pipe; 19. a first reflux pump; 20. a second return pipe; 21. a second reflux pump; 22. a transparent glass plate; 23. a nameplate; 24. drying the shell; 25. an electric hot plate; 26. a hot air blower; 27. an exhaust pipe; 28. and (6) blocking plates.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
Referring to fig. 1 to 6, an apparatus for producing sodium pyroantimonate by a pure oxygen oxidation method for higher reaction efficiency in a reaction vessel shell 4 includes: the reaction kettle comprises a reaction kettle mechanism 1, a centrifugal mechanism 2 and a drying mechanism 3 which are sequentially installed from top to bottom, wherein the reaction kettle mechanism 1 comprises a reaction kettle shell 4, a transparent glass plate 22 (the drawing needs not to be transparent) is nested and installed on one side wall of the reaction kettle shell 4, the transparent glass plate 22 can conveniently penetrate through the reaction condition, a feeding pipe 6 is inserted into one side of the top of the reaction kettle shell 4, a transmission motor 5 is installed in the center of the top of the reaction kettle shell 4 through a motor base, and the output end of the transmission motor 5 penetrates through the top of the reaction kettle shell 4 and is coaxially connected with a rotating rod 7;
the lateral wall of bull stick 7 has a plurality of stirring boards 8 through evenly connected with the screw, the top and the bottom of stirring board 8 have a plurality of subplates 9 through evenly connected with the screw, subplate 9 can increase area of contact in order to promote and stir efficiency, subplate 9 and stirring board 8 have evenly seted up a plurality of small openings 12, reduce the resistance that the rotation received, there is connecting plate 10 through a plurality of screwed connection between a plurality of one sides that stirring board 8 kept away from bull stick 7, the opposite side of connecting plate 10 evenly bonds and has the brush hair 11 that supports at 4 inboards of reation kettle casing, can avoid the reactant adhesion at reation kettle casing 1's inside wall.
In order to improve the utilization rate of raw materials, the centrifugal mechanism 2 comprises a centrifugal machine shell 13 which is arranged at the bottom of a reaction kettle shell 4 through a plurality of groups of bolts, a nameplate 23 is adhered to the outer wall of one side of the centrifugal machine shell 13, operation steps are marked, workers can conveniently know how to operate, a first connecting pipe is inserted between the centrifugal machine shell 13 and the reaction kettle shell 4, a centrifugal motor 14 is arranged at the center of the bottom of the centrifugal machine shell 13 through a motor base, an output end of the centrifugal motor 14 penetrates through the bottom of the centrifugal machine shell 13 and is provided with a centrifugal inner shell 15, a plurality of filter holes 16 are uniformly formed in the bottom of the side wall of the centrifugal inner shell 15, and filtrate can be discharged out of the centrifugal inner shell 15 through the filter holes 16 in the centrifugal process;
a discharge pipe is inserted into one side of the bottom of the centrifugal inner shell 15, a storage shell 17 is installed on the outer wall of one side of the centrifugal shell 13, a connecting pipe II is inserted between the storage shell 17 and the centrifugal shell 13, a return pipe I18 is inserted between the inner side of the storage shell 17 and the corresponding side wall of the reaction kettle shell 4, a return pump I19 is installed on the side wall of the return pipe I18, and filtrate can flow back into the reaction kettle shell 4 through the matching of the return pipe I18 and the return pump I19;
two 20 backflow pipes are inserted between the corresponding side walls of the centrifuge shell 13 and the reaction kettle shell 4, two 20 side walls of the backflow pipes are provided with two 21 backflow pumps, washing water can flow back to the reaction kettle shell 4 through the cooperation of the two 20 backflow pipes and the two 21 backflow pumps, a liquid adding pipe corresponding to the centrifugal inner shell 15 is inserted on the upper portion of one side wall of the centrifuge shell 13, and soft water can be put into the liquid adding pipe to wash.
The drying mechanism 3 comprises four support columns welded at four corners of the bottom of the centrifuge shell 13, a bottom plate is welded between the bottoms of the four support columns, a drying shell 24 is installed at the top of the bottom plate through a plurality of bolts, a third connecting pipe is inserted between the corresponding side walls of the drying shell 24 and the centrifuge shell 13, a discharge hole is formed in one side wall of the drying shell 24, a blocking plate 28 is inserted into the discharge hole, the sodium pyroantimonate can be taken out by opening the blocking plate 28, and an electric heating plate 25 (the type of the electric heating plate does not influence the functions of the drying shell 24, so that limitation is not caused) is nested in the inner side wall of the drying shell 24, and the existing principle can be adopted for heating;
A production method of equipment for producing sodium pyroantimonate by a pure oxygen oxidation method comprises the following specific steps:
s1: pulping and oxidizing crystallization: a plurality of reaction raw materials are sequentially put into the reaction kettle shell 4 through the feeding pipe 6, the transmission motor 5 drives the rotating rod 7 to rotate so as to drive the stirring plate 8 to rotate, and the raw materials are continuously stirred and reacted through the matching of the stirring plate 8, the auxiliary plate 9 and the bristles 11, so that alkali liquor of mixed sodium antimonate can be prepared;
s2: centrifugal filtration: alkali liquor is discharged into the centrifugal mechanism 2 through the connecting pipe for centrifugal filtration, filtrate is discharged out of the centrifugal inner shell 15 through the filtering hole 16 and is discharged into the storage shell 17 through the connecting pipe II in the centrifugal process, then the filtrate flows back into the reaction kettle shell 4 through the return pipe I18 for recycling, the filtered wet sodium antimonate is added into soft water through the liquid adding pipe for washing, and the washed washing water flows back into the reaction kettle shell 4 through the return pipe II 20 for recycling;
s3: fully drying: the washed wet sodium antimonate is discharged into the drying shell 24 through a discharge pipe and a connecting pipe III for full drying, the electric heating plate 25 can be used for heating and drying the wet sodium antimonate by adopting the existing principle, meanwhile, the hot air blower 26 works, hot air blown out by the hot air blower 26 can accelerate the drying efficiency, the hot air is discharged from the exhaust pipe 27, and the required sodium pyroantimonate product can be obtained after drying;
s4: raw material recovery: and taking out the obtained sodium antimonate, screening, and then putting the first-class product into the reaction kettle shell 4 again through the feeding pipe 6 for circulation, wherein the first-class product can be packaged and stored in a warehouse.
The working principle is that the device is connected with an external power supply, a plurality of reaction raw materials are sequentially put into a reaction kettle shell 4 through a feeding pipe 6, the raw materials are continuously stirred and reacted through the matching of a stirring plate 8, a secondary plate 9 and bristles 11 to prepare alkali liquor of mixed sodium antimonate, the alkali liquor is discharged into a centrifugal inner shell 15 through a connecting pipe I to be centrifugally filtered, filtered filtrate flows back into the reaction kettle shell 4 through a return pipe I18 to be recycled, the rest wet sodium antimonate is added into soft water through a liquid adding pipe to be washed, washed washing water flows back into the reaction kettle shell 4 through a return pipe II 20 to be recycled, the washed wet sodium antimonate is discharged into a drying shell 24 through a discharge pipe and a connecting pipe III to be fully dried, a blocking plate 28 is opened to obtain sodium antimonate products, the sodium antimonate products are screened, and then one of the products is put into the reaction kettle shell 4 through the feeding pipe 6 again to be circulated to prepare a high-quality product, the superior products can be directly packaged and put in storage.
It is noted that, herein, relational terms such as one and two are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An apparatus for producing sodium pyroantimonate by a pure oxygen oxidation method, comprising:
the reaction kettle mechanism (1), the centrifugal mechanism (2) and the drying mechanism (3) are sequentially arranged from top to bottom;
the method is characterized in that: reaction kettle mechanism (1) includes reaction kettle casing (4), grafting inlet pipe (6) in reaction kettle casing (4) top one side and installs transmission motor (5) at reaction kettle casing (4) top center, the top and the coaxial coupling that the output of transmission motor (5) runs through reaction kettle casing (4) have bull stick (7), the lateral wall of bull stick (7) evenly is connected with a plurality of stirring board (8), the top and the bottom of stirring board (8) evenly are connected with a plurality of subplates (9), and are a plurality of it keeps away from between one side of bull stick (7) to stir board (8) is connected with connecting plate (10), the opposite side of connecting plate (10) evenly bonds and has brush hair (11) of support in reaction kettle casing (4) inboard.
2. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 1, wherein: centrifugal mechanism (2) is including installing centrifuge housing (13) in reation kettle casing (4) bottom, and pegs graft between centrifuge housing (13) and reation kettle casing (4) and have connecting pipe one, centrifugal motor (14) are installed at the bottom center of centrifuge housing (13), the output of centrifugal motor (14) runs through the bottom of centrifuge housing (13) and installs centrifugal inner shell (15), a plurality of filtration pores (16) have evenly been seted up to the lateral wall bottom of centrifugal inner shell (15), it has the discharge pipe to peg graft in bottom one side of centrifugal inner shell (15).
3. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 2, characterized in that: the centrifugal separation device is characterized in that a storage shell (17) is installed on the outer wall of one side of the centrifugal shell (13), a second connecting pipe is connected between the storage shell (17) and the centrifugal shell (13) in an inserting mode, a first return pipe (18) is connected between the inner side of the storage shell (17) and the corresponding side wall of the reaction kettle shell (4) in an inserting mode, and a first return pump (19) is installed on the side wall of the first return pipe (18).
4. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 2, characterized in that: a second return pipe (20) is inserted between the corresponding side walls of the centrifugal machine shell (13) and the reaction kettle shell (4), a second return pump (21) is installed on the side wall of the second return pipe (20), and a liquid feeding pipe corresponding to the centrifugal inner shell (15) is inserted on the upper portion of one side wall of the centrifugal machine shell (13).
5. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 1, wherein: drying mechanism (3) are including installing four support columns in centrifuge housing (13) bottom four corners and installing the bottom plate between four support column bottoms, and dry casing (24) are installed at the top of bottom plate, and it has connecting pipe three to peg graft between the corresponding lateral wall of dry casing (24) and centrifuge housing (13).
6. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 5, wherein: the electric hot plate (25) is installed to the inside wall nestification of dry casing (24), air heater (26) are installed on a lateral wall upper portion of dry casing (24), and the inner chamber intercommunication of the output of air heater (26) and dry casing (24), it has blast pipe (27) to peg graft on one side of the top of dry casing (24).
7. The apparatus for producing sodium pyroantimonate by pure oxygen oxidation according to claim 5, wherein: a discharge hole is formed in one side wall of the drying shell (24), and a blocking plate (28) is inserted into the discharge hole.
8. The method for producing sodium pyroantimonate by pure oxygen oxidation according to any one of claims 1 to 7, wherein: the method comprises the following specific steps:
s1: pulping and oxidizing crystallization: multiple reaction raw materials are sequentially put into the reaction kettle shell (4) and are continuously stirred for reaction, so that alkali liquor mixed with sodium antimonate can be prepared;
s2: centrifugal filtration: discharging alkali liquor into a centrifugal mechanism (2) for centrifugal filtration, discharging filtrate into a storage shell (17) and refluxing into a reaction kettle shell (4) through a backflow pipe I (18) for recycling, adding soft water into the filtered wet sodium antimonate for washing, and refluxing the washed washing water into the reaction kettle shell (4) through a backflow pipe II (20) for recycling;
s3: fully drying: discharging the washed wet sodium antimonate into a drying shell (24) for full drying, and obtaining a required sodium pyroantimonate product after drying;
s4: raw material recovery: and taking out the obtained sodium antimonate, screening, putting the first-class product into the reaction kettle shell (4) again for circulation, and packaging and warehousing the high-class product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210364938.6A CN114516659A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for producing sodium pyroantimonate by pure oxygen oxidation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210364938.6A CN114516659A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for producing sodium pyroantimonate by pure oxygen oxidation method |
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| CN202210364938.6A Pending CN114516659A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for producing sodium pyroantimonate by pure oxygen oxidation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773362A (en) * | 2022-06-15 | 2022-07-22 | 上海欣峰制药有限公司 | Cefoxitin sodium compound and preparation method thereof |
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| CN103318959A (en) * | 2013-07-15 | 2013-09-25 | 郴州市金贵银业股份有限公司 | Production method for sodium pyroantimonate by using high-temperature high-pressure pure-oxygen oxidation |
| CN105727866A (en) * | 2016-03-17 | 2016-07-06 | 中南大学 | Chemical precipitation reaction integrated equipment |
| CN213854057U (en) * | 2020-10-25 | 2021-08-03 | 宝鸡靖源科技发展有限责任公司 | Agitating unit is used in chemical product manufacturing |
| CN214159333U (en) * | 2020-12-23 | 2021-09-10 | 山东佑震化工有限公司 | Scale inhibitor stirring device capable of stirring uniformly and smoothly |
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2022
- 2022-04-08 CN CN202210364938.6A patent/CN114516659A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318959A (en) * | 2013-07-15 | 2013-09-25 | 郴州市金贵银业股份有限公司 | Production method for sodium pyroantimonate by using high-temperature high-pressure pure-oxygen oxidation |
| CN105727866A (en) * | 2016-03-17 | 2016-07-06 | 中南大学 | Chemical precipitation reaction integrated equipment |
| CN213854057U (en) * | 2020-10-25 | 2021-08-03 | 宝鸡靖源科技发展有限责任公司 | Agitating unit is used in chemical product manufacturing |
| CN214159333U (en) * | 2020-12-23 | 2021-09-10 | 山东佑震化工有限公司 | Scale inhibitor stirring device capable of stirring uniformly and smoothly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114773362A (en) * | 2022-06-15 | 2022-07-22 | 上海欣峰制药有限公司 | Cefoxitin sodium compound and preparation method thereof |
| CN114773362B (en) * | 2022-06-15 | 2023-12-29 | 上海欣峰制药有限公司 | Cefoxitin sodium compound and preparation method thereof |
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Application publication date: 20220520 |