CN108410496A - Liner patch block for crude distillation tower - Google Patents
Liner patch block for crude distillation tower Download PDFInfo
- Publication number
- CN108410496A CN108410496A CN201810141840.8A CN201810141840A CN108410496A CN 108410496 A CN108410496 A CN 108410496A CN 201810141840 A CN201810141840 A CN 201810141840A CN 108410496 A CN108410496 A CN 108410496A
- Authority
- CN
- China
- Prior art keywords
- insulating layer
- parts
- crude distillation
- distillation tower
- tower
- 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.)
- Granted
Links
- 238000004821 distillation Methods 0.000 title claims abstract description 51
- 239000011521 glass Substances 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 12
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000155 melt Substances 0.000 claims abstract description 4
- 238000007711 solidification Methods 0.000 claims abstract 2
- 230000008023 solidification Effects 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000010779 crude oil Substances 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005292 vacuum distillation Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/10—Inhibiting corrosion during distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to the vacuum distillation equipments of petroleum chemical industry, more particularly to a kind of liner patch block for crude distillation tower, including using welding metal as substrate, insulating layer is equipped in the side plate face of the substrate, and the glassy layer that the glass metal that spraying high temperature melts on insulating layer is formed；The insulating layer includes adding water mixing solidification to conserve with hollow glass micropearl, aluminum sulfate, Cab-O-sil, glass powder and ceramic powder；The present invention passes through the solderable metal plate that is arranged on crude distillation inner wall of tower, and the insulating layer being arranged thereon, and the glassy layer being arranged on insulating layer, effectively raise the heat-insulating property of crude distillation tower, simultaneously, the glassy layer is the spraying carried out again after the completion of the solderable metal plate welding of multiple cell blocks, ensure the structure that glassy layer is integral, corrosion of the Korrosionsmedium generated in crude oil distillation process to crude distillation inner wall of tower is effectively prevented, the service life of crude distillation tower is improved.
Description
Technical field
The present invention relates to the vacuum distillation equipments of petroleum chemical industry, and in particular to a kind of liner for crude distillation tower
Patch block.
Background technology
Crude oil is the mixture of hydrocarbons, is in sticky, auburn liquid.It is directly wasted very much using crude oil, so just
It needs each component in crude oil to separate, the method for typically using rectifying, i.e. precise control of temperature make the group of specific boiling point
Divide and evaporates.
As general distillation, crude distillation is realized respectively also with the difference of each component relative volatility in crude oil
The separation of fraction, but crude oil is the mixture of complicated hydro carbons, the boiling points of various hydrocarbon (and hydrocarbon formed with hydrocarbon azeotropic mixture) is from low
It is almost continuously distributed to height, pure compound is isolated with simple distillation method is extremely difficult, usually according to product requirement by boiling
The fraction that point range is divided into weight different, therefore, crude distillation tower are different from the conjunction rectifying column of object is isolated and purified comprising have
The preciseness of separation of multiple side line discharges, each fraction of crude distillation does not require as pure compound distillation height like that, multiple side ports
(generally having 3~4) can draw the different fraction of weight simultaneously；Secondly, the enriching section of crude distillation tower is very short, crude distillation
Materials at bottom of tower is very heavy, should not be in tower bottom heating, but is usually passed through overheated steam in bottom of tower, so that lighter fraction is evaporated, generally carries
Dense section of only 3~4 blocks of column plates；Furthermore since the mean boiling point of each fraction of crude oil differs greatly, cause steam in crude distillation tower
Load and liquid load are incremented by from bottom to top, and to make load uniformly and recycling the heat under high temperature, heat is taken using stage casing reflux
Mode extracts liquid out in the middle part of tower, sent back in tower again after the cooling recycling heat of heat exchange.
In recent years, the ratio of the crude oil with poor quality such as oil plant processing high-sulfur high-acidity increasingly increases, these crude oil inferior are passing through
During crossing destilling tower, the low molecular organic acids of the corrosive mediums such as hydrogen chloride, hydrogen sulfide of generation and high-content, such as first
The corrosive mediums such as acid, acetic acid or propionic acid can the serious inner wall for corroding destilling tower, cause the reduction of equipment dependability.
Invention content
For the problems of the prior art, the purpose of the present invention is to provide a kind of liner patches for crude distillation tower
Brick, the inner wall of crude distillation tower is protected by the liner patch block, while avoiding scattering and disappearing for heat in destilling tower.
To achieve the goals above, the present invention is achieved by the following scheme：
A kind of liner patch block for crude distillation tower, including using welding metal as substrate, in the substrate
Side plate face is equipped with insulating layer, and the glassy layer that the glass metal that spraying high temperature melts on insulating layer is formed；
The insulating layer includes adding water mixing solidifying with hollow glass micropearl, aluminum sulfate, Cab-O-sil, glass powder and ceramic powder
Gu conserving.
In the present invention, by the way that insulating layer is arranged on welding metallic plate, spraying high temperature melts again after molding to be solidified
Glass metal form glassy layer, to realize to the effective protection of crude distillation inner wall of tower.
The making of liner patch block of the present invention for crude distillation tower and installation method are：Multiple welding
It is enclosed on metallic plate and sets template, then insulating layer raw material is uniformly mixed and obtains the powder mixture of dry and wet shape, and by the dry and wet shape
Powder mixture be filled into template, pressing molding, then conserve；Then the welding metallic plate crude oil is welded to steam
It evaporates on the inner wall of tower, multiple welding metallic plates are welded and fixed adjacent to each other, then again by the glass metal high pressure of high-temperature fusion
The surface for spraying to insulating layer forms whole, fine and close glassy layer in insulation layer surface, avoids crude oil in the mistake of high temperature distillation
Corrosion of the corrosive mediums such as the hydrogen chloride, the hydrogen sulfide that are generated in journey to crude distillation inner wall of tower, improves crude distillation equipment
Service life.
Herein it is noted that, the radian of the plate face radian and crude distillation inner wall of tower of the welding metallic plate
Consistent, multiple welding metallic plates are spliced to be welded on the inner wall of crude distillation tower, then uses high-temperature fusion
Glass metal, which shrouds the insulating layer being arranged on multiple welding metallic plates, to be integrated.Contain heat resistance in the insulating layer
Excellent filler and the hollow glass micropearl with hole, can effectively completely cut off heat, avoid dissipating for the heat in destilling tower
It loses, improves the service efficiency of the heat of destilling tower.
The present invention does not do particular/special requirement to the welding metallic plate, can carry out welding and can be with the powder of insulating layer
Mixture be reliably bonded, and the welding metallic plate can be selected from Q235 steel, Q295 steel, Q345 steel, Q390
One kind in steel, Q420 steel, Q460 steel.
Preferably, insulating layer of the present invention includes the material composition of following parts by weight：Hollow glass micropearl 15
~26 parts, 3~8 parts of aluminum sulfate, 1~10 part of Cab-O-sil, 12~20 parts of glass powder, 5~16 parts of ceramic powder, 20~30 parts of water.
Preferably, insulating layer of the present invention includes the material composition of following parts by weight：Hollow glass micropearl 18
~22 parts, 4~6 parts of aluminum sulfate, 3~8 parts of Cab-O-sil, 15~18 parts of glass powder, 8~12 parts of ceramic powder, 25 parts of water.
According to the present invention, the average grain diameter and particle diameter distribution of heretofore described hollow glass micropearl can be wider
Selection in range in order to ensure the insulating layer of liner patch block there is good heat insulation effect, the hollow glass micropearl to be averaged
Grain size is 50~60 μm, and particle diameter distribution is 10~120 μm.
According to the present invention, the thickness of heretofore described insulating layer can select in a wider scope, in order to ensure
Liner patch block has good heat insulation effect, while meeting the requirement of cost performance, and the thickness of the insulating layer is 1~3.5cm.
In the present invention, residence time of the crude oil in crude distillation tower is adjusted for convenience, is buried in the liner patch block
Equipped with corrugated asbestos shingle, the rib length direction of the asbestos shingle is identical as the length direction of crude distillation tower, so so that former
Periodic cavity is formed on the inner wall of oily destilling tower, which can have certain " pulling out cigarette effect ", promote the hydro carbons of lightweight
And hydrocarbon mixture reduces its residence time in crude distillation tower quickly by crude distillation tower.
Compared with prior art, the present invention has the following technical effects：
It is solderable on crude distillation inner wall of tower by being arranged provided by the present invention for the liner patch block of crude distillation tower
Metallic plate is connect, and the insulating layer being arranged thereon, and the glassy layer being arranged on insulating layer, effectively raises crude distillation tower
Heat-insulating property, meanwhile, which is the spraying that carries out again after the completion of the solderable metal plate welding of multiple cell blocks, really
The structure that glassy layer is integral has been protected, has effectively prevented the Korrosionsmedium generated in crude oil distillation process to crude distillation
The corrosion of inner wall of tower improves the service life of crude distillation tower.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is furture elucidated.
Embodiment 1
The dry and wet shape powder mixture of insulating layer is prepared by formula as below：20 parts of hollow glass micropearl (is purchased from Zhejiang Hai Yue
New material limited liability company, hollow glass micropearl 5020,50 μm of average grain diameter, 10~120 μm of particle diameter distribution), aluminum sulfate 5
Part, 5 parts of Cab-O-sil, 16 parts of glass powder, 10 parts of ceramic powder, 25 parts of water；
With Q235 steel (5mm is thick), substrate is used as after veneer reeling machine crimps；Above-mentioned dry and wet shape powder mixing is laid on substrate
Object suppresses 10min under the pressure of 2Mpa, and it is 2cm to make the final thickness of insulating layer, and the substrate that this is provided with to insulating layer welds
Onto the inner wall of crude distillation tower, then in the surface spraying high-temperature glass liquid of insulating layer to form glassy layer.
Embodiment 2
The dry and wet shape powder mixture of insulating layer is prepared by formula as below：18 parts of hollow glass micropearl (is purchased from Zhejiang Hai Yue
New material limited liability company, hollow glass micropearl 5020,50 μm of average grain diameter, 10~120 μm of particle diameter distribution), aluminum sulfate 4
Part, 3 parts of Cab-O-sil, 15 parts of glass powder, 8 parts of ceramic powder, 25 parts of water；
With Q235 steel (5mm is thick), substrate is used as after veneer reeling machine crimps；Above-mentioned dry and wet shape powder mixing is laid on substrate
Object suppresses 10min under the pressure of 2Mpa, and it is 1.5cm to make the final thickness of insulating layer, and the substrate that this is provided with to insulating layer welds
It is connected on the inner wall of crude distillation tower, then in the surface spraying high-temperature glass liquid of insulating layer to form glassy layer.
Embodiment 3
The dry and wet shape powder mixture of insulating layer is prepared by formula as below：22 parts of hollow glass micropearl (is purchased from Zhejiang Hai Yue
New material limited liability company, hollow glass micropearl 5020,50 μm of average grain diameter, 10~120 μm of particle diameter distribution), aluminum sulfate 6
Part, 8 parts of Cab-O-sil, 18 parts of glass powder, 12 parts of ceramic powder, 25 parts of water；
With Q235 steel (5mm is thick), substrate is used as after veneer reeling machine crimps；Above-mentioned dry and wet shape powder mixing is laid on substrate
Object suppresses 10min under the pressure of 2Mpa, and it is 3cm to make the final thickness of insulating layer, and the substrate that this is provided with to insulating layer welds
Onto the inner wall of crude distillation tower, then in the surface spraying high-temperature glass liquid of insulating layer to form glassy layer.
Embodiment 4
The dry and wet shape powder mixture of insulating layer is prepared by formula as below：15 parts of hollow glass micropearl (is purchased from Zhejiang Hai Yue
New material limited liability company, hollow glass micropearl 5020,50 μm of average grain diameter, 10~120 μm of particle diameter distribution), aluminum sulfate 3
Part, 1 part of Cab-O-sil, 12 parts of glass powder, 5 parts of ceramic powder, 20 parts of water；
With Q235 steel (5mm is thick), substrate is used as after veneer reeling machine crimps；Above-mentioned dry and wet shape powder mixing is laid on substrate
Object suppresses 10min under the pressure of 2Mpa, and it is 1cm to make the final thickness of insulating layer, and the substrate that this is provided with to insulating layer welds
Onto the inner wall of crude distillation tower, then in the surface spraying high-temperature glass liquid of insulating layer to form glassy layer.
Embodiment 5
The dry and wet shape powder mixture of insulating layer is prepared by formula as below：26 parts of hollow glass micropearl (is purchased from Zhejiang Hai Yue
New material limited liability company, hollow glass micropearl 5020,50 μm of average grain diameter, 10~120 μm of particle diameter distribution), aluminum sulfate 8
Part, 10 parts of Cab-O-sil, 20 parts of glass powder, 16 parts of ceramic powder, 30 parts of water；
With Q235 steel (5mm is thick), substrate is used as after veneer reeling machine crimps；Above-mentioned dry and wet shape powder mixing is laid on substrate
Object suppresses 10min under the pressure of 2Mpa, and it is 3.5cm to make the final thickness of insulating layer, and the substrate that this is provided with to insulating layer welds
It is connected on the inner wall of crude distillation tower, then in the surface spraying high-temperature glass liquid of insulating layer to form glassy layer.
By the technical solution of above-described embodiment 1-5, the heat-insulating property of crude distillation tower has obtained significant raising, together
When, effectively avoid crude distillation tower in the process of running, corrosion of the Korrosionsmedium in crude oil to distillation inner wall of tower,
Improve the service life of crude distillation tower.
The basic principles and main features and the features of the present invention of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement is both fallen in the range of claimed invention.The scope of protection of present invention is by appended claims
And its equivalent thereof.
Claims (5)
1. a kind of liner patch block for crude distillation tower, it is characterised in that：Including using welding metal as substrate, in institute
The side plate face for stating substrate is equipped with insulating layer, and the glassy layer that the glass metal that spraying high temperature melts on insulating layer is formed；
The insulating layer includes adding water mixing solidification to support with hollow glass micropearl, aluminum sulfate, Cab-O-sil, glass powder and ceramic powder
It protects.
2. the liner patch block according to claim 1 for crude distillation tower, it is characterised in that：The insulating layer include with
The material composition of lower parts by weight：15~26 parts of hollow glass micropearl, 3~8 parts of aluminum sulfate, 1~10 part of Cab-O-sil, glass powder 12~
20 parts, 5~16 parts of ceramic powder, 20~30 parts of water.
3. the liner patch block according to claim 1 for crude distillation tower, it is characterised in that：The insulating layer include with
The material composition of lower parts by weight：18~22 parts of hollow glass micropearl, 4~6 parts of aluminum sulfate, 3~8 parts of Cab-O-sil, glass powder 15~
18 parts, 8~12 parts of ceramic powder, 25 parts of water.
4. the liner patch block according to claim 1 for crude distillation tower, it is characterised in that：The hollow glass micropearl
Average grain diameter be 50~60 μm, particle diameter distribution be 10~120 μm.
5. the liner patch block according to claim 1 for crude distillation tower, it is characterised in that：The thickness of the insulating layer
For 1~3.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141840.8A CN108410496B (en) | 2018-02-11 | 2018-02-11 | Lining tile for crude oil distillation tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141840.8A CN108410496B (en) | 2018-02-11 | 2018-02-11 | Lining tile for crude oil distillation tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108410496A true CN108410496A (en) | 2018-08-17 |
| CN108410496B CN108410496B (en) | 2020-10-20 |
Family
ID=63128515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141840.8A Active CN108410496B (en) | 2018-02-11 | 2018-02-11 | Lining tile for crude oil distillation tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108410496B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109956678A (en) * | 2019-03-29 | 2019-07-02 | 安徽凤阳淮河玻璃有限公司 | A kind of toughening method and toughened glass ware of utility glass ware |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586399U (en) * | 2009-10-21 | 2010-09-22 | 中国石油化工股份有限公司 | Decompression distillation tower |
| CN202327525U (en) * | 2011-11-18 | 2012-07-11 | 武汉德威工程技术有限公司 | Overhead steam conveying pipeline |
| CN107512881A (en) * | 2017-09-12 | 2017-12-26 | 成都新柯力化工科技有限公司 | A kind of external wall patch block of decorative heat preservation one and preparation method thereof |
-
2018
- 2018-02-11 CN CN201810141840.8A patent/CN108410496B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586399U (en) * | 2009-10-21 | 2010-09-22 | 中国石油化工股份有限公司 | Decompression distillation tower |
| CN202327525U (en) * | 2011-11-18 | 2012-07-11 | 武汉德威工程技术有限公司 | Overhead steam conveying pipeline |
| CN107512881A (en) * | 2017-09-12 | 2017-12-26 | 成都新柯力化工科技有限公司 | A kind of external wall patch block of decorative heat preservation one and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李全熙等: "《化学工程 卷Ⅵ SI单位 化工设计导论》", 30 June 1989, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109956678A (en) * | 2019-03-29 | 2019-07-02 | 安徽凤阳淮河玻璃有限公司 | A kind of toughening method and toughened glass ware of utility glass ware |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108410496B (en) | 2020-10-20 |
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Effective date of registration: 20240119 Address after: 243000 No.1 Chaosan Road, Provincial Fine Chemical Base, Hexian Economic Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Jubaoshi Technology Co.,Ltd. Address before: 238200 Fine Chemical Base of Wujiang Town, Ma'anshan City and County, Anhui Province Patentee before: ANHUI HAIDE CHEMICAL TECHNOLOGY Co.,Ltd. |
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