CN108525388A - A kind of waste lubricating oil decolorizing and refining filtration system - Google Patents
A kind of waste lubricating oil decolorizing and refining filtration system Download PDFInfo
- Publication number
- CN108525388A CN108525388A CN201810605309.1A CN201810605309A CN108525388A CN 108525388 A CN108525388 A CN 108525388A CN 201810605309 A CN201810605309 A CN 201810605309A CN 108525388 A CN108525388 A CN 108525388A
- Authority
- CN
- China
- Prior art keywords
- agitator tank
- decolorizing
- lubricating oil
- refining
- waste lubricating
- 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
- 239000002699 waste material Substances 0.000 title claims abstract description 50
- 238000007670 refining Methods 0.000 title claims abstract description 39
- 238000001914 filtration Methods 0.000 title claims abstract description 32
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 30
- 239000003921 oil Substances 0.000 claims abstract description 41
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 18
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000032258 transport Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0083—Lubricating greases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of waste lubricating oil decolorizing and refining filtration systems, including agitator tank, drying device, refined oil receiving tank and tail gas device for drying and filtering；Stirring pot bottom is connected to by refined oil transport pipeline with refined oil receiving tank, and the bottom other end is connected to by decolorizing and refining carrier transport pipeline with drying device；Drying device is connected to tail gas device for drying and filtering；The top of supporting rack above agitator tank is installed by one driving motor；The drive shaft of driving motor passes through the middle part of supporting rack to be connect with the paddle being set in agitator tank；Lifting motor is arranged in supporting rack；The lifting shaft end of lifting motor and driving axis connection；The top of agitator tank offers feed inlet, and feed inlet is connected to feed pipe；Feed pipe is horizontally set in agitator tank, is evenly distributed with several atomizers thereon；A filter is laterally fixed positioned at the lower section of paddle, the lower section of filter is equipped with discharge port；Agitator tank side end between paddle and filter is equipped with refined carrier discharge port.
Description
Technical field
The invention belongs to the technical fields of reclaimed oil, and in particular to a kind of waste lubricating oil decolorizing and refining filtration system.
Background technology
Waste lubricant oil regeneration is the process by waste oil purification for reusable lubricating oil with physics, chemical method.It is early
Just start to apply Spent lube reclamation process in early 20th century, the U.S. and Germany all had commercial scale regenerating unit at that time.
China has also started in the forties using regeneration waste lubricating oil technique.The sixties, main regeneration technology is that sulfuric acid-is white in the world
Earth process.The U.S. was once equivalent to the 18% of fresh oil in the period of full bloom of waste oil regeneration, then the yield of refined oil.Into the seventies with
Afterwards, since petroleum price rise and environmental protection requirement improve, to waste lubricant oil regeneration with prodigious impact, petroleum price rise makes useless lubrication
Oil is directly more advantageous than regenerating when fuel use, has seized a large amount of regenerative raw materials.It is after environmental protection requirement improves, then strong to arrange
Denounce sulfuric acid refining process and uses certain flocculating agents.Under this dual-pressure, many regeneration factories close down.But also promote it is pollution-free again
The development of the research work of raw technique, develops several pollution-free regeneration new process flows, promptly replaces sulfuric acid treatment.Afterwards
To find that directly burning waste oil also seriously pollutes environment, it is desirable that thoroughly after removing metal, just allow to make fuel use.
In the technical process of existing waste lubricant oil regeneration, there is no timely processing to the exhaust gas of generation, pollute environment；And
Waste lubricating oil decolorizing and refining carrier is not recycled, the waste of resource is caused.
Invention content
It is an object of the invention to be directed to above-mentioned deficiency in the prior art, a kind of waste lubricating oil decolorizing and refining filtering is provided
System, to solve asking for exhaust emission environment and waste lubricating oil decolorizing and refining carrier waste in existing process for regeneration of waste lubricating oil
Topic.
In order to achieve the above objectives, the technical solution adopted by the present invention is that：
A kind of waste lubricating oil decolorizing and refining filtration system comprising agitator tank, drying device, refined oil receiving tank and tail gas
Device for drying and filtering；Agitator tank bottom end is connected to by refined oil transport pipeline with refined oil receiving tank, and the bottom other end is logical
Decolorizing and refining carrier transport pipeline is crossed to be connected to drying device；Drying device is connected to tail gas device for drying and filtering；
A supporting rack is fixed above agitator tank；The top of supporting rack is installed by one driving motor；The drive shaft of driving motor
It is connect with the paddle being set in agitator tank across the middle part of supporting rack；Lifting motor is arranged in supporting rack；Lifting electricity
The lifting shaft end of machine and driving axis connection；The top of agitator tank offers feed inlet, and feed inlet is connected to feed pipe；Feed pipe
It is horizontally set in agitator tank, is evenly distributed with several atomizers thereon；A filter is laterally fixed positioned at the lower section of paddle,
The lower section of filter is equipped with discharge port；Agitator tank side end between paddle and filter is equipped with refined carrier discharge port.
Preferably, the lifting shaft end of lifting motor is connect with snap-gauge；The side end of snap-gauge is connected with drive shaft clamping.
Preferably, at least provided with three atomizers on feed pipe.
Preferably, atomizer is M30X3 atomizers.
Preferably, filter is YNTSH-XF-X Self-cleaning filters, and filter screen mesh aperture thereon is 50 μm.
Preferably, feed inlet is equipped with feed pump.
Preferably, one end of tail gas device for drying and filtering and air-introduced machine connects, the other end and atmosphere of air-introduced machine.
Preferably, refined oil receiving tank is connected to by transfering material pump with finished pot.
Waste lubricating oil decolorizing and refining filtration system provided by the invention, has the advantages that：
The present invention focuses on the exhaust gas generated during waste lubricating oil decolorizing and refining, and recycles decolorizing and refining load
Body, it is efficient simultaneously in realization, also avoid environmental pollution and the waste of resource.Efficiently solve existing waste lubricating oil
The problem of exhaust emission environment and waste lubricating oil decolorizing and refining carrier waste in regeneration technology.
Description of the drawings
Fig. 1 is the structure chart of waste lubricating oil decolorizing and refining filtration system.
Fig. 2 is the structure chart of waste lubricating oil decolorizing and refining filtration system agitator tank.
Wherein, 1, feed pump；2, agitator tank；3, drying device；4, refined oil receiving tank；5, tail gas device for drying and filtering；6、
Air-introduced machine；7, decolorizing and refining carrier transport pipeline；8, refined oil transport pipeline；9, transfering material pump；10, finished pot；11, discharging pump；
201, driving motor；202, supporting rack；203, lifting motor；204, drive shaft；205, lifting shaft；206, feed inlet；207, into
Expects pipe；208, atomizer；209, paddle；210, filter；211, carrier discharge port is refined；212, discharge port；213, block
Plate.
Specific implementation mode
The specific implementation mode of the present invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific implementation mode, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the row of protection.
According to one embodiment of the application, with reference to figure 1, the waste lubricating oil decolorizing and refining filtration system of this programme, including
Agitator tank 2, drying device 3, refined oil receiving tank 4 and tail gas device for drying and filtering 5；2 bottom end of agitator tank is transported by refined oil
Defeated pipeline 8 is connected to refined oil receiving tank 4, and the bottom other end is connected by decolorizing and refining carrier transport pipeline 7 and drying device 3
It is logical；Drying device 3 is connected to tail gas device for drying and filtering 5.
With reference to figure 2, wherein be filled with several decolorizing and refining carriers in agitator tank 2, decolorizing and refining carrier is that conventional waste oil is de-
The medicament of color impurity elimination, such as silica gel, decolorising agent, activated carbon.
Feed inlet 206 is equipped with feed pump 1, and decolorizing and refining carrier transport pipeline 7 is equipped with discharging pump 11.Tail gas is dried
Filter 5 is connect with one end of air-introduced machine 6, the other end and atmosphere of air-introduced machine 6.Refined oil receiving tank 4 by transfering material pump 9 with
Finished pot is connected to.
Driving motor 201 on agitator tank 2 is installed on the top of supporting rack 202, and drive shaft 204 connected to it passes through
The middle part of supporting rack 202 is connect with the paddle 209 being set in agitator tank 2, for providing power for paddle 209.It is propping up
The inside both sides of support 202 are symmetrically installed there are two lifting motor 203,205 bottom of lifting shaft with 203 be connected by power of lifting motor
Portion is weldingly connected with snap-gauge 213, the side end arc setting of snap-gauge 213, and is connected in the outside of drive shaft 204.
When the present embodiment is in use, lifting motor 203 is opened, lifting shaft 205 drives drive shaft 204 to move up and down, until
It is moved to suitable position, closes lifting motor 203, while the snap-gauge 213 in drive shaft 204 being removed.Open driving motor
201, drive shaft 204 drives paddle 209 to carry out high speed rotation, is sufficiently stirred waste oil.After primary stirring, above-mentioned step is repeated
Suddenly, paddle 209 is adjusted to different height, be again stirring for.After the stirring of multiple and different height, waste oil fully with decoloration
Refined carrier mixing, and it is made to be uniformly mixed；Waste oil comes into full contact with filter 210 simultaneously, improves the decoloration and filtering of waste oil
Precision.
The feed inlet 206 of waste oil is set to the top of agitator tank 2, and feed inlet 206 is equipped with feed pump 1, for being lubricated useless
Oil pump enters in agitator tank 2.Feed inlet 206 is connected to feed pipe 207, and feed pipe 207 is horizontally set in agitator tank 2, thereon
It is even that multiple atomizers 208 are distributed with.Atomizer 208 can be according to the composition of agitator tank 2 and waste oil come its fixed quantity, the present embodiment
Preferably three, atomizer 208 selects M30X3 atomizers 208, can spray to waste oil high pressure in agitator tank 2, and be not easy to block up
Plug.
Filter 210 is set to the lower section of paddle 209, and filter 210 is YNTSH-XF-X Self-cleaning filters 210,
Filter screen mesh aperture thereon is 50 μm, being capable of the high-precision impurity filtered in waste oil.
The lower section of filter 210 is discharge port 212, and refined oil transports refined oil by refined oil transport pipeline 8 and receives
In tank 4, and under the action of transfering material pump 9, refined oil is pumped into finished pot 10.And decolorizing and refining carrier is in decolorizing and refining carrier
Under the translocation of transport pipeline 7, into drying device 3.Several drier and absorption are uniformly filled in drying device 3
Agent, such as silica-gel desiccant and activated alumina (or the identical reagent of other effects can with).
And the tail gas generated during waste lubricating oil decolorizing and refining and decolorizing and refining carrier drying, then it is discharged by pipeline
In tail gas device for drying and filtering 5, tail gas device for drying and filtering 5 is XP-02AHEPA high efficiency particulate air filters 210, can be a large amount of by filtering absorption
Inorganic waste gases and industrial waste gas, cleaning of off-gas avoids air pollution.Purified tail gas is imported tail gas by air-introduced machine 6
Air.
The present invention focuses on the exhaust gas generated during waste lubricating oil decolorizing and refining, and recycles decolorizing and refining load
Body, it is efficient simultaneously in realization, also avoid environmental pollution and the waste of resource.Efficiently solve existing waste lubricating oil
The problem of exhaust emission environment and waste lubricating oil decolorizing and refining carrier waste in regeneration technology.
Although being described in detail to the specific implementation mode of invention in conjunction with attached drawing, should not be construed as to this patent
Protection domain restriction.In range described by claims, those skilled in the art are without creative work
The various modifications and deformation made still belong to the protection domain of this patent.
Claims (8)
1. a kind of waste lubricating oil decolorizing and refining filtration system, it is characterised in that：It is received including agitator tank, drying device, refined oil
Tank and tail gas device for drying and filtering；The agitator tank bottom end is connected to by refined oil transport pipeline with refined oil receiving tank,
The bottom other end is connected to by decolorizing and refining carrier transport pipeline with drying device；The drying device and tail gas device for drying and filtering
Connection；
A supporting rack is fixed above the agitator tank；The top of support frame as described above is installed by one driving motor；The driving motor
Drive shaft pass through supporting rack middle part connect with the paddle being set in agitator tank；Lifting is arranged in support frame as described above
Motor；The lifting shaft end of the lifting motor and driving axis connection；The top of the agitator tank offers feed inlet, feed inlet
It is connected to feed pipe；The feed pipe is horizontally set in agitator tank, is evenly distributed with several atomizers thereon；It is stirred positioned at described
A filter is laterally fixed in the lower section for mixing leaf, and the lower section of the filter is equipped with discharge port；Between the paddle and filter
Agitator tank side end be equipped with refined carrier discharge port.
2. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The liter of the lifting motor
Drop shaft end is connect with snap-gauge；The side end of the snap-gauge is connected with drive shaft clamping.
3. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：On the feed pipe at least
If there are three atomizers.
4. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The atomizer is
M30X3 atomizers.
5. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The filter is
YNTSH-XF-X Self-cleaning filters, filter screen mesh aperture thereon is 50 μm.
6. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The feed inlet is equipped with
Feed pump.
7. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The tail gas dry filter
One end of device and air-introduced machine connects, the other end and atmosphere of air-introduced machine.
8. waste lubricating oil decolorizing and refining filtration system according to claim 1, it is characterised in that：The refined oil receiving tank
It is connected to finished pot by transfering material pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605309.1A CN108525388B (en) | 2018-06-13 | 2018-06-13 | Waste lubricating oil decoloration refining filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605309.1A CN108525388B (en) | 2018-06-13 | 2018-06-13 | Waste lubricating oil decoloration refining filtration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108525388A true CN108525388A (en) | 2018-09-14 |
| CN108525388B CN108525388B (en) | 2024-04-12 |
Family
ID=63470752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810605309.1A Active CN108525388B (en) | 2018-06-13 | 2018-06-13 | Waste lubricating oil decoloration refining filtration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108525388B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115837173A (en) * | 2022-12-28 | 2023-03-24 | 邓秀妹 | A equipment for acetic acid decoloration is handled |
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| CN206063945U (en) * | 2016-10-08 | 2017-04-05 | 浙江海牛环境科技股份有限公司 | It is a kind of decolourize for degraded amine solution, the filtering and purifying of oil removing |
| CN207286888U (en) * | 2017-08-28 | 2018-05-01 | 佛山市高明晟俊塑料助剂有限公司 | A kind of decoloration device prepared for environment-friendlyplasticizer plasticizer |
| CN207483643U (en) * | 2017-11-13 | 2018-06-12 | 江西开源香料有限公司 | A kind of natural raspberry ketone production decoloration device |
| CN208553371U (en) * | 2018-06-13 | 2019-03-01 | 四川正洁科技有限责任公司 | A kind of waste lubricating oil decolorizing and refining filtration system |
-
2018
- 2018-06-13 CN CN201810605309.1A patent/CN108525388B/en active Active
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| JP2007145974A (en) * | 2005-11-28 | 2007-06-14 | Matsuo Kogyosho:Kk | Oil purification apparatus for waste cooking oil |
| CN105800649A (en) * | 2016-03-09 | 2016-07-27 | 北京富海天环保科技有限公司 | Method for preparing sodium thiocyanate from ammonia desulphurization waste liquid and sodium carbonate as raw material |
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| Title |
|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115837173A (en) * | 2022-12-28 | 2023-03-24 | 邓秀妹 | A equipment for acetic acid decoloration is handled |
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| Publication number | Publication date |
|---|---|
| CN108525388B (en) | 2024-04-12 |
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