CN107434272A - A kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff - Google Patents
A kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff Download PDFInfo
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- CN107434272A CN107434272A CN201710682538.9A CN201710682538A CN107434272A CN 107434272 A CN107434272 A CN 107434272A CN 201710682538 A CN201710682538 A CN 201710682538A CN 107434272 A CN107434272 A CN 107434272A
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- Prior art keywords
- organic solid
- fixed bed
- solid castoff
- targeting
- renewable
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- 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
- Y02W30/20—Waste processing or separation
Abstract
The invention belongs to organic solid waste process field, and in particular to a kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff.The present invention is adsorbed the organic solid castoff solution after solvent dissolves by targetting preventing fixed bed adsorber, and the obtained flow liquid of crossing containing low value-added organic matter enters incinerator for waste liquid；Polymeric adsorbent after fixed bed targeting absorption, by chromatography, desorption technique, obtains the chromatographic solution containing organic matter, stripping liquid；After adsorbent chromatography, precipitation matchmaker's reuse is distilled, kettle raffinate obtains high added value organic matter；After adsorbent desorption, precipitation matchmaker's reuse is distilled, kettle raffinate obtains high added value organic matter, or obtains the complicated organic matter of incineration treatment technology, is discharged after biochemical, oxidation processes.The present invention realizes resource recycling utilization, reduces blowdown, reduces pollution, has saved the processing cost of organic liquid waste, and generates economic benefit, realizes clean manufacturing.
Description
Technical field
The invention belongs to organic solid waste process field, and in particular to a kind of method of process for producing solid waste, particularly handle
Soluble organic solid waste method.
Background technology
Organic solid castoff is the caused solid waste in industrial production, processing technology.In recent years, with Industrial Engineering
High speed development, the processing of organic solid waste also become one of important step of production process.Due to that may contain in organic solid waste
Poisonous, harmful, penetrating odor, severe corrosive organic matter, dealing with improperly can make it that treatment effect is undesirable, processing cost mistake
Height, while cause serious environmental pollution.
At present, feasible organic solid waste processing method is industrialized, based on environment friendly biological processing and burning disposal.Environmental protection is raw
Thing processing is mainly used in organic solid waste biodegradable, without poisonous substance, and feasible mode has agricultural compost, landfill；Burn
Burning processing is mainly used in difficult biochemical, dysoxidizable organic solid waste, ash content progress landfill disposal caused by burning, and incineration tail gas
Contain poisonous, harmful, corrosive gas in if, exhaust collection processing must be carried out.Meanwhile burning disposal also serves as landfill
The pretreating process of processing mode, to reduce demand of the landfill to land area.However, environment friendly biological facture is not
Can processing containing suppressing growth of microorganism the organic solid waste of acitve organic matter, and there is high energy consumption, complex process, easily in burning disposal
The characteristics of producing secondary pollution, while tail gas from incinerator processing load and concentration of emission are added, improve solid waste burning equipment
Complexity, input degree and processing extent of deterioration so that the processing cost of organic solid waste is high, treatment effect is undesirable.And
And organic solid waste incineration technology can not effectively reclaim the organic matter for burning high added value in solid waste, cause the wasting of resources.These
Problem make it that the environmental protection treatment cost of organic solid waste is higher, circulating benefit is poor.Fixed-end forces technology should be towards inexpensive and green
The direction of color circulationization is developed.
The content of the invention
In order to solve above mentioned problem existing for prior art, it is soluble that the present invention provides a kind of renewable targeting adsorption treatment
The process for cleanly preparing of organic solid castoff.To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff, it is characterised in that
Comprise the following steps：
(1) dissolve
By soluble organic solid castoff, dissolved by certain solvent, obtain high concentration organic solid and discard
Thing solution；
(2) ADSORPTION IN A FIXED BED is targetted
By high concentration organic solid castoff solution, adsorbed by targetting preventing fixed bed adsorber, it is high attached in liquid phase
Value added or complicated incineration treatment technology organic matter is adsorbed onto on the resin in the device, flows down the mistake containing low value-added organic matter
Flow liquid, after incinerator is handled, qualified discharge；
(3) chromatography desorption
The targeting preventing fixed bed adsorber of adsorption saturation is chromatographed and desorbed using alcoholic solution, obtain chromatographic solution and
Stripping liquid；
(4) distill
The chromatographic solution and stripping liquid that step (3) is obtained are respectively adopted common destilling tower and distilled, and obtain gas phase and kettle
Raffinate, alcohol is obtained after gas phase is condensed, return in step (3) and recycle；
(5) evaporative crystallization
The kettle raffinate that chromatographic solution obtains after distillation, crystallisation by cooling, high added value organic matter finished product is obtained after processing；
The kettle raffinate that stripping liquid obtains after distillation, crystallisation by cooling, high added value organic matter finished product is obtained after processing, or
The complicated debirs of incineration treatment technology are obtained, are discharged after biochemical, oxidation processes.
Solvent in the step (1), can be water, acid solution, aqueous slkali, methanol, ethanol, ether, acetone, benzene, first
One kind in benzene, dimethylbenzene, n-hexane, hexamethylene, cyclohexanone.
The feeding manner of targeting preventing fixed bed adsorber is divided into bottom feed or its top feed in the step (2)；Targeting
The adsorption rate of preventing fixed bed adsorber is 0.5~1BV/H, 20~35 DEG C of adsorption temp.
Targeting is fixed using the mixed solution of aqueous slkali or alkali and sodium hypochlorite when resin is contaminated in the step (3)
Bed adsorbent equipment carries out forced regeneration, and the waste water flowed down is after biochemical treatment, qualified discharge；Or with acid solution to targetting fixed bed
Adsorbent equipment carries out forced regeneration, and the waste water flowed down is after biochemical treatment, qualified discharge.
Desorption rate is 0.4-0.6BV/H in the step (3), and desorption temperature is 20-55 DEG C.
For the alcohol used when being chromatographed in the step (3) for one kind in methanol or ethanol, mass fraction is 0%~60%；
For the alcohol used during desorption for one kind in methanol or ethanol, mass fraction is 40%~100%；Alkali in the aqueous slkali is hydrogen
One kind in sodium oxide molybdena, potassium hydroxide, mass fraction are 1%~2%；The mass fraction of the liquor natrii hypochloritis is 0.05%
~1%.Acid in the acid solution is hydrochloric acid, one kind in nitric acid, sulfuric acid, and mass fraction is 1%~2%.
The targeting preventing fixed bed adsorber is by some groups, and every group of specification identical resin column forms, wherein in resin column
Macroreticular resin be on macroporous absorbent resin base material carry out coating modification form, different modified coatings, can have to different
Machine thing is oriented absorption.
The macroporous absorbent resin base material can be H-103 types, XAD-1 types, XAD-7 types, HP-20 types, CAD-30 types, CAD-
One kind in 40 types, CAD-45 types, CAD-47 types, HT-PA, HT-PB, HT-B, HT-312 type, HT-1600 types.
The targeting preventing fixed bed adsorber is provided with two sets, during a set of operation, another set of to be regenerated.
Renewable targeting adsorption technology (RTA, Renewable Targeted Adsorption), that is, pass through efficient absorption
Agent carries out selective oriented attachment, removes the organic matter in high-concentration waste water, and realizes the decolouring, taste removal, drop COD of waste water；It is right
In the high-efficiency adsorbent of adsorption saturation, can by chromatographing, desorbing, forced regeneration technique regenerates to it, reaching circulation makes
Purpose；For the condensed organic obtained after chromatographing, parsing, can be realized organic in waste water by separation, purifying technique
The cycling and reutilization of thing.
Renewable targeting adsorption technology is applied to the processing of soluble organic solid castoff, in particular to incited somebody to action by the present invention
Organic solid castoff solution after solvent dissolves, is adsorbed by targetting preventing fixed bed adsorber, and containing for obtaining is low
The flow liquid of crossing of added value organic matter enters incinerator for waste liquid；Polymeric adsorbent after fixed bed targeting absorption, by chromatographing, desorbing
Technique, obtain the chromatographic solution containing organic matter, stripping liquid；After adsorbent chromatography, precipitation matchmaker's reuse is distilled, kettle raffinate obtains high attached
Value added organic matter；After adsorbent desorption, precipitation matchmaker's reuse is distilled, kettle raffinate obtains high added value organic matter, or obtains at burning
The organic matter of complex process is managed, is discharged after biochemical, oxidation processes.
The above-mentioned technical proposal of the present invention compared with prior art, has advantages below：
RTA targets the oriented attachment of preventing fixed bed adsorber, with separation circulation for core, through chromatographing, desorbing, distilling work
Skill, isolates that incineration treatment technology is complicated, with serious pollution debirs from high concentrated, solid organic waste solution, improves
The treatment effeciency of incinerator for waste liquid, it is ensured that liquid waste incineration handling process can continue to carry out, and solve high concentration and consolidate
In body organic waste solution containing incineration treatment technology is complicated, with serious pollution organic matter when caused by waste liquid burning process
Manage ineffective phenomenon；Meanwhile pure organic matter has been recovered to from high concentrated, solid organic waste solution, realize resource
Change recycles, and reduces blowdown, reduces pollution, has saved the processing cost of organic liquid waste, and generates economic benefit, real
Clean manufacturing is showed；In addition, chromatographic solution, stripping liquid, after distillation condenses, obtained chromatography, parsing agent can recycle；And
Pressure desorption and regeneration can be carried out because being desorbed incomplete and contaminated resin, general polymeric adsorbent is solved and is desorbed unnet ask
Topic.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
The present invention is described in detail with reference to specific embodiment and accompanying drawing, but the invention is not limited in specific embodiment.
Embodiment 1
By a kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff in the present embodiment
It is applied in the process for cleanly preparing of soluble phthalic anhydride solid waste, comprises the following steps：
(1) using organic solid castoff is produced in the production technology of the oxidative synthesis phthalic anhydride of ortho-xylene, it is dissolved in
15% ethanol, the high concentration organic solid castoff solution containing phthalic anhydride, benzoic acid is sent into renewable targeting absorption fixed bed
Device carries out targeting absorption；
(2) waste liquid will be flowed down after renewable targeting absorption fixed bed device absorption to be sent into destilling tower, gas phase is condensed
After obtain ethanol, return to step (1) recycles, and kettle is residual (to be free of phthalic anhydride and benzoic acid, the high fuel value for being only dissolved in ethanol has
Machine thing) it is sent into incinerator and carries out burning and be converted into innocuous gas；
(3) by adsorption saturation phthalic anhydride, the renewable targeting preventing fixed bed adsorber of benzoic acid, using mass fraction 20%
~60% ethanol carries out gradient chromatography, obtains chromatographic solution and is sent into destilling tower, and distillation crystallization obtains benzene after subsequent treatment again
Formic acid finished product, ethanol is obtained after gas phase is condensed, return to renewable targeting preventing fixed bed adsorber chromatography reuse；
(4) by the renewable targeting preventing fixed bed adsorber after chromatography, using the ethanol of mass fraction 60%~100%
Desorbed, obtain stripping liquid and be sent into destilling tower, distillation crystallization obtains phthalic anhydride finished product after subsequent treatment again, and gas phase is condensed
After obtain ethanol, return to renewable targeting preventing fixed bed adsorber desorption reuse；
(5) the renewable targeting after being regenerated when appropriate using the potassium hydroxide solution of mass fraction 1.6% to ethanol is adsorbed
Device carries out forced regeneration, flows down waste water after biochemical treatment, qualified discharge.
In the present embodiment, renewable targeting preventing fixed bed adsorber, destilling tower and incinerator for waste liquid are used in series.
In the present embodiment, renewable targeting preventing fixed bed adsorber is provided with two sets, another set of during a set of operation to be regenerated.
In the present embodiment, renewable targeting preventing fixed bed adsorber is made up of the resin column of 2 same specifications, resin column
Middle filler base material is XAD-1 type macroporous absorbent resins.
Embodiment 2
A kind of clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff described in the present embodiment
Each step of technique is in the same manner as in Example 1, and difference is：After being regenerated with the hydrochloric acid solution of mass fraction 1.9% to ethanol
Renewable targeting adsorbent equipment carry out forced regeneration.
Embodiment 3
By a kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff in the present embodiment
In clean manufacturing applied to processing soluble salicylonitrile solid waste, comprise the following steps：
(1) salicylic acid, urea, sulfamic acid and catalyst (for magnesia and Cyanuric Chloride) synthesis salicylonitrile production are used
Organic solid castoff is produced in technique, is dissolved in toluene, salicylonitrile, salicylamide and impurity will be contained (for a small amount of urea, ammonia
Base sulfonic acid, phenol, magnesia and Cyanuric Chloride) high concentration organic solid castoff solution be sent into it is renewable targeting absorption fix
Bed apparatus carries out targeting absorption；
(2) waste liquid will be flowed down after renewable targeting absorption fixed bed device absorption to be sent into destilling tower, gas phase is condensed
After obtain toluene, return to step (1) recycles, and the residual organic impurities of kettle, which is sent into incinerator and carries out burning, is converted into harmless gas
Body；
(3) by adsorption saturation salicylonitrile, the renewable targeting preventing fixed bed adsorber of salicylamide, using mass fraction
0%~60% ethanol carries out gradient chromatography, obtains chromatographic solution and is sent into destilling tower, obtained after distillation crystallization salicylamide into
Product, ethanol is obtained after gas phase is condensed, return to renewable targeting preventing fixed bed adsorber chromatography reuse；
(4) by the renewable targeting preventing fixed bed adsorber after chromatography, using the ethanol of mass fraction 40%~100%
Desorbed, obtain stripping liquid and be sent into destilling tower, obtained salicylonitrile finished product after distillation crystallization, second is obtained after gas phase is condensed
Alcohol, return to renewable targeting preventing fixed bed adsorber chromatography reuse；
(5) the renewable targeting after being regenerated when appropriate using the sodium hydroxide solution of mass fraction 1.4% to ethanol is adsorbed
Device carries out forced regeneration, flows down waste water after biochemical treatment, qualified discharge.
In the present embodiment, renewable targeting preventing fixed bed adsorber, destilling tower and incinerator for waste liquid are used in series.
In the present embodiment, renewable targeting preventing fixed bed adsorber is provided with two sets, another set of during a set of operation to be regenerated.
In the present embodiment, renewable targeting preventing fixed bed adsorber is made up of the resin column of 2 same specifications, resin column
Middle filler base material is HT-312 type macroporous absorbent resins.
Embodiment 4
A kind of clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff described in the present embodiment
Each step of technique is in the same manner as in Example 3, and difference is：After being regenerated with the sulfuric acid solution of mass fraction 1.8% to ethanol
Renewable targeting adsorbent equipment carry out forced regeneration.
Embodiment 5
By a kind of process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff in the present embodiment
In clean manufacturing applied to processing soluble salicylonitrile solid waste, comprise the following steps：
(1) using organic solid castoff is produced in salicylamide, optical self-encoding salicylonitrile production technology, it is dissolved in first
Benzene, the high concentration organic solid castoff solution containing salicylonitrile, salicylamide is sent into renewable targeting absorption fixed bed dress
Put and carry out targeting absorption；
(2) waste liquid will be flowed down after renewable targeting absorption fixed bed device absorption to be sent into destilling tower, gas phase is condensed
After obtain toluene, return to step (1) is recycled, and kettle is residual (be free of salicylamide and salicylonitrile, be only dissolved in the high of toluene and burn
Value organic matter) it is sent into incinerator and carries out burning and be converted into innocuous gas；
(3) by adsorption saturation salicylonitrile and the renewable targeting preventing fixed bed adsorber of salicylamide, divided using quality
The ethanol of number 0%~60% carries out gradient chromatography, obtains chromatographic solution and is sent into destilling tower, obtained after distillation crystallization salicylamide into
Product, ethanol is obtained after gas phase is condensed, return to renewable targeting preventing fixed bed adsorber chromatography reuse；
(4) by the renewable targeting preventing fixed bed adsorber after chromatography, using the ethanol of mass fraction 40%~60%
Desorbed, obtain stripping liquid and be sent into destilling tower, obtained salicylonitrile finished product after distillation crystallization, second is obtained after gas phase is condensed
Alcohol, return to renewable targeting preventing fixed bed adsorber chromatography reuse；
(5) the renewable targeting after being regenerated when appropriate using the sodium hydroxide solution of mass fraction 1.2% to ethanol is adsorbed
Device carries out forced regeneration, flows down waste water after biochemical treatment, qualified discharge.
In the present embodiment, renewable targeting preventing fixed bed adsorber, destilling tower and incinerator for waste liquid are used in series.
In the present embodiment, renewable targeting preventing fixed bed adsorber is provided with two sets, another set of during a set of operation to be regenerated.
In the present embodiment, renewable targeting preventing fixed bed adsorber is made up of the resin column of 2 same specifications, resin column
Middle filler base material is HT-1600 type macroporous absorbent resins.
Embodiment 6
A kind of clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff described in the present embodiment
Each step of technique is in the same manner as in Example 5, and difference is：After being regenerated with the salpeter solution of mass fraction 1.5% to ethanol
Renewable targeting adsorbent equipment carry out forced regeneration.
Claims (9)
- A kind of 1. process for cleanly preparing of renewable targeting adsorption treatment solubility organic solid castoff, it is characterised in that bag Include following steps：(1) dissolveBy soluble organic solid castoff, dissolved by certain solvent, it is molten to obtain high concentration organic solid castoff Liquid；(2) ADSORPTION IN A FIXED BED is targettedBy high concentration organic solid castoff solution, adsorbed by targetting preventing fixed bed adsorber, high added value in liquid phase Or the organic matter of incineration treatment technology complexity is adsorbed onto on the resin in the device, flows down the excessively stream containing low value-added organic matter Liquid, after incinerator is handled, qualified discharge；(3) chromatography desorptionThe targeting preventing fixed bed adsorber of adsorption saturation is chromatographed and desorbed using alcoholic solution, obtains chromatographic solution and desorption Liquid；(4) distillThe chromatographic solution and stripping liquid that step (3) is obtained are respectively adopted common destilling tower and distilled, and obtain gas phase and kettle raffinate, Alcohol is obtained after gas phase is condensed, returns in step (3) and recycles；(5) evaporative crystallizationThe kettle raffinate that chromatographic solution obtains after distillation, crystallisation by cooling, high added value organic matter finished product is obtained after processing；The kettle raffinate that stripping liquid obtains after distillation, crystallisation by cooling, high added value organic matter finished product is obtained after processing, or obtained The complicated debirs of incineration treatment technology, are discharged after biochemical, oxidation processes.
- A kind of 2. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 1 Technique, it is characterised in that the solvent in the step (1), can be water, acid solution, aqueous slkali, methanol, ethanol, ether, third One kind in ketone, benzene,toluene,xylene, n-hexane, hexamethylene, cyclohexanone.
- A kind of 3. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 1 Technique, it is characterised in that the feeding manner of targeting preventing fixed bed adsorber is divided into bottom feed in the step (2) or top is entered Material；The adsorption rate of targeting preventing fixed bed adsorber is 0.5~1BV/H, 20~35 DEG C of adsorption temp.
- A kind of 4. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 1 Technique, it is characterised in that using aqueous slkali or the mixed solution pair of alkali and sodium hypochlorite when resin is contaminated in the step (3) Target preventing fixed bed adsorber and carry out forced regeneration, the waste water flowed down is after biochemical treatment, qualified discharge；Or with acid solution to target Forced regeneration is carried out to preventing fixed bed adsorber, the waste water flowed down is after biochemical treatment, qualified discharge.
- A kind of 5. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 1 Technique, it is characterised in that desorption rate is 0.4-0.6BV/H in the step (3), and desorption temperature is 20-55 DEG C.
- A kind of 6. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 1 Technique, it is characterised in that the alcohol used when being chromatographed in the step (3) is one kind in methanol or ethanol, mass fraction 0% ~60%；For the alcohol used during desorption for one kind in methanol or ethanol, mass fraction is 40%~100%；In the aqueous slkali One kind for sodium hydroxide, in potassium hydroxide of alkali, mass fraction is 1%~2%；The mass fraction of the liquor natrii hypochloritis For 0.05%~1%.Acid in the acid solution is hydrochloric acid, one kind in nitric acid, sulfuric acid, and mass fraction is 1%~2%.
- 7. a kind of renewable targeting adsorption treatment solubility organic solid castoff according to any one of claims 1 to 6 Process for cleanly preparing, it is characterised in that the targeting preventing fixed bed adsorber is by some groups, every group of specification identical resin column group Into wherein the macroreticular resin in resin column is to carry out coating modification on macroporous absorbent resin base material to form, and different modifications applies Layer, can be oriented absorption to different organic matters.
- A kind of 8. clean manufacturing of renewable targeting adsorption treatment solubility organic solid castoff according to claim 7 Technique, it is characterised in that the macroporous absorbent resin base material can be H-103 types, XAD-1 types, XAD-7 types, HP-20 types, CAD- One kind in 30 types, CAD-40 types, CAD-45 types, CAD-47 types, HT-PA, HT-PB, HT-B, HT-312 type, HT-1600 types.
- 9. a kind of renewable targeting adsorption treatment solubility organic solid castoff according to any one of claims 1 to 6 Process for cleanly preparing, it is characterised in that the targeting preventing fixed bed adsorber is provided with two sets, during a set of operation, another set of progress Regeneration.
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| CN111451254A (en) * | 2020-05-01 | 2020-07-28 | 东阳市聚冉电子科技有限公司 | Method for recycling industrial waste residue containing benzophenone hydrazone |
| CN114130791A (en) * | 2021-12-02 | 2022-03-04 | 安徽三五生物化工技术开发有限公司 | Harmless treatment system for solid waste triphenylphosphine oxide in electronic industry |
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| CN111451254A (en) * | 2020-05-01 | 2020-07-28 | 东阳市聚冉电子科技有限公司 | Method for recycling industrial waste residue containing benzophenone hydrazone |
| CN111451254B (en) * | 2020-05-01 | 2021-09-03 | 东阳市聚冉电子科技有限公司 | Method for recycling industrial waste residue containing benzophenone hydrazone |
| CN114130791A (en) * | 2021-12-02 | 2022-03-04 | 安徽三五生物化工技术开发有限公司 | Harmless treatment system for solid waste triphenylphosphine oxide in electronic industry |
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Application publication date: 20171205 |
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