CN104368285A - Method for recycling spent solvent oil - Google Patents
Method for recycling spent solvent oil Download PDFInfo
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- CN104368285A CN104368285A CN201410496457.6A CN201410496457A CN104368285A CN 104368285 A CN104368285 A CN 104368285A CN 201410496457 A CN201410496457 A CN 201410496457A CN 104368285 A CN104368285 A CN 104368285A
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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
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00186—Controlling or regulating processes controlling the composition of the reactive mixture
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
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Abstract
The invention discloses a method for recycling spent solvent oil. The method comprises the following steps: 1, carrying out coarse filtration: adding the spent solvent oil into a coarse filtration device to filter out large particles; 2, carrying out fine filtration: adding the coarse filtered spent solvent oil into a fine filtration device to filter out small particles; 3, preheating: preheating the filtered spent solvent oil in a preheating device to a preset temperature; 4, carrying out main reaction treatment: adding the preheated spent solvent oil into a main reactor; 5, carrying out side reaction treatment: adding a viscous material incompletely reacted in the main reactor into a side reactor; and 6, carrying out product realization: recovering the obtained dimethylbenzene and butyl acetate mixed solvent, and adding a missing ingredient to prepare a solvent type coating cleaning agent used in the coating system. Compared with an incineration method, the method disclosed in the invention has the advantages of no secondary pollution and repeated use of resources; and compared with a reduced pressure distillation method, the method disclosed in the invention has the advantages of low energy consumption, recycling value, and true reduction, harmlessness and recycling of wastes.
Description
Technical field
The present invention relates to recovery and the application technology as the second resource field of waste solvent oil.
Background technology
In automobile, chemical industry, petrochemical industry, the industries such as paint use a large amount of organic solvents, such as vehicle paint lines needs cleaning paint-conveying system and paint spraying apparatus all can produce a large amount of waste solvent oils, comprise resin, pigment, aluminium powder, organic solvent (dimethylbenzene, butyl acetate etc.), solvent more than 90%, physical form is solidliquid mixture.Often just be discharged after cleaned, both caused the wasting of resources, again huge pollution is caused to environment.
The method of this kind of waste solvent oil of current disposal mainly contains burning and decompression distillation two kinds of methods, wherein burns and occupies an leading position.But these two kinds of methods all exist certain defect, burn and easily produce the poisonous and harmful substances such as bioxin, easily bring secondary pollution to environment, do not meet environmental requirement.
Publication number is CN202223921U, publication date is that the Chinese patent literature on May 23rd, 2012 discloses the device reclaiming dimethylbenzene in a kind of waste solvent oil, comprise rectifying column, tower reactor, heater, condensing unit, reflux ratio controller and product receiver, tower reactor is connected with rectifier bottoms and communicates, heater is positioned under tower reactor, and condensing unit is connected with rectifying column top and communicates; Also be provided with thermocouple at rectifying column top, heater side is also provided with remaining liquid receiver.The distillation under vacuum being representative with above-mentioned patent document disposal recovering effect is better but energy consumption is high, and input cost is high, and large-scale production difficulty is large.Have the solvent of economic worth in burning method waste waste liquid, decompression distillation rule wastes energy.
Summary of the invention
The present invention is intended to for the defect existing for above-mentioned prior art and deficiency, and provide a kind of method of waste solvent oil regeneration, the present invention is burning method comparatively, can not bring secondary pollution, has accomplished resource recycling; Comparatively decompression distillation, energy consumption is lower, more has recovery value, really accomplishes the minimizing of discarded object, innoxious, resource.
The present invention realizes by adopting following technical proposals:
A method for waste solvent oil regeneration, is characterized in that step is as follows:
A, coarse filtration: waste solvent oil enters in coarse filter device and filters out large particulate matter;
B, essence are filtered: the waste solvent oil after coarse filtration enters fine filtering apparatus, is filtered out by finely ground particle substance in fine filtering apparatus;
C, the pre-heat treatment: add additive in the waste solvent oil after filtering through essence, and be preheated to design temperature in preheating device;
D, main reaction process: the waste solvent oil after preheating enters main reactor, dimethylbenzene and butyl acetate solvent content gasify and condensation and separation and recovery through distilling;
E, side reaction process: in main reactor, the unreacted material of sticky shape that resin, pigment, aluminium powder and waste solvent oil are formed completely enters auxiliary reactor again, distill gasify also condensation and separation and recovery by the dimethylbenzene remained in sticky material and butyl acetate; Being recovered in coarse filtration step of still not reacting completely after reaction in auxiliary reactor processes;
F, Realization of Product: the mixed solvent reclaiming dimethylbenzene and butyl acetate, by add the composition lacked be prepared into solvent based coating cleaning agent again reuse to coating system;
The residue obtained in described coarse filtration step, smart filtration step and main reaction treatment step enters the process of paint slag disposal system.
In described a step, the coarse filter device of employing is 200 object filter screens, is filtered by the resin gel polymers class large particulate matter in waste solvent oil.
In described b step, the fine filtering apparatus of employing is 400 object filter screens, the resin in waste solvent oil, pigment and aluminium powder class finely ground particle substance is filtered.
In described step c, the preheating device of employing is the preheating apparatus by oil bath heat transfer, and solvent slop is preheated to 80 DEG C by normal temperature.
In described step c, according to waste solvent oil after the waste solvent oil filtered through essence enters preheating device: additive=100:(0.05 ~ 0.1) mass ratio add, after mixing, mixed solvent is preheated to 80 DEG C, described additive is high-temperature defoamer, the colourless viscous liquid of high-temperature defoamer to be composition be glycerine polyethenoxy ether.
In described Step d, main reactor is distillation still, and the vapo(u)rizing temperature in distillation still is 130-150 DEG C, and distillation time is 4 ~ 6h.
In described step e, auxiliary reactor is distillation still, and the vapo(u)rizing temperature in distillation still is 150 to 180 DEG C, and distillation time is 4h.
In described f step, described paint slag disposal system adopts WRS-OR organic waste to utilize the harmless treatment of system disposing technique, and solution then enters heat treatment, and to carry out solvent richness long-pending.Described WRS-OR organic waste utilizes system to refer to, and the patent No. is for organic waste recycling system disclosed in ZL201020683256.4 patent document.
Compared with prior art, beneficial effect of the present invention shows:
1, in prior art, with the most use is burning method, the method of resource reuse is decompression distillation, the processing method that the coarse filtration that the present invention adopts, essence filtration, the pre-heat treatment, main reaction process, side reaction process and Realization of Product are formed compared with prior art, comparatively burning method, can not secondary pollution be brought, accomplish resource recycling; Comparatively decompression distillation, energy consumption is lower, more has recovery value, really accomplishes the minimizing of discarded object, innoxious, resource.The most outstanding, equipment can drop into time production of coming off duty immediately after eliminating surplus, and the accessible 24h of realization of safety runs continuously, can according to customer demand, each scale production system of private customization.Economic benefit, social benefit, environmental benefit can not look down upon.
2, in the present invention, pressure solvent distillation easily foams and affects product quality, affects production capacity; Use defoamer effectively can avoid foamed phenomenon, the high-temperature defoamer of the specific selection of this additive to be composition be glycerine polyethenoxy ether, there is when very low concentrations efficient froth breaking power, with large-scale pH value (2-14) under high shear, be suitable for and good stability in temperature range, do not affect later stage solvent product quality.
3, in the present invention, in main reactor, setting pot temperature 130-150 DEG C, distillation 4 ~ 6h, learn through experiment and can make the dimethylbenzene of in waste solvent oil and coating compound 80% and butyl acetate equal solvent partial gasification and condensation and make its separation and recovery, there is good recovering effect.
4, in the present invention, in auxiliary reactor, setting vapo(u)rizing temperature 150 to 180 DEG C, distillation 4h, learns 50% of the dimethylbenzene remained in sticky material and butyl acetate content can be distilled through experiment, further increase solvent recovering rate.
5, in the present invention, reclaim the mixed solvent of dimethylbenzene and butyl acetate, by add the composition lacked can be prepared into solvent based coating cleaning agent again reuse to coating system, enable discarded object recycling, further energy-conserving and environment-protective, recycling; After the emptying afterbody of disposal facility, can continue to add materials, continuous 24h smoothly operation.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein:
Fig. 1 is integrated artistic flow chart of the present invention.
Detailed description of the invention
Embodiment 1
The invention discloses a kind of method of waste solvent oil regeneration, its step is as follows:
A, coarse filtration: waste solvent oil enters in coarse filter device and filters out large particulate matter;
B, essence are filtered: the waste solvent oil after coarse filtration enters fine filtering apparatus, is filtered out by finely ground particle substance in fine filtering apparatus;
C, the pre-heat treatment: add additive in the waste solvent oil after filtering through essence, and be preheated to design temperature in preheating device;
D, main reaction process: the waste solvent oil after preheating enters main reactor, dimethylbenzene and butyl acetate solvent content gasify and condensation and separation and recovery through distilling;
E, side reaction process: in main reactor, the unreacted material of sticky shape that resin, pigment, aluminium powder and waste solvent oil are formed completely enters auxiliary reactor again, distill gasify also condensation and separation and recovery by the dimethylbenzene remained in sticky material and butyl acetate; Being recovered in coarse filtration step of still not reacting completely after reaction in auxiliary reactor processes;
F, Realization of Product: the mixed solvent reclaiming dimethylbenzene and butyl acetate, by add the composition lacked be prepared into solvent based coating cleaning agent again reuse to coating system;
The residue obtained in described coarse filtration step, smart filtration step and main reaction treatment step enters the process of paint slag disposal system.
Embodiment 2
As preferred forms of the present invention, with reference to Figure of description, concrete steps of the present invention are:
1, coarse filtration: adopt 200 mesh filter screens to filter completely by large particulate matters such as the resin gel polymers in waste solvent oil;
2, essence is filtered: adopt 400 mesh filter screens to filter completely by finely ground particle substances such as the resin in waste solvent oil, pigment and aluminium powders;
3, preheating device: the waste solvent oil filtered through essence to enter after preheating device according to waste solvent oil: additive=100:(0.05 ~ 0.1) mass ratio add, after mixing, mixed solvent is preheated to 80 DEG C.
3.1 equipment air-distillation solvents easily foam and affect product quality, affect production capacity; Use defoamer effectively can avoid foamed phenomenon, this additive is high-temperature defoamer, has efficient froth breaking power when very low concentrations, with large-scale pH value (2-14) under high shear, is suitable for and good stability, does not affect later stage solvent product quality in temperature range.High-temperature defoamer composition is the colourless viscous liquid of glycerine polyethenoxy ether.
4, main reaction
Setting pot temperature 130-150 DEG C, distillation 4 ~ 6h makes the dimethylbenzene of in waste solvent oil and coating compound 80% and butyl acetate equal solvent partial gasification and condensation and make its separation and recovery, and the material of sticky shape that resin, pigment and aluminium powder etc. and the waste solvent oil of small part are formed enters side reaction again.
5, side reaction:
Setting vapo(u)rizing temperature 150 to 180 DEG C, 50% of the dimethylbenzene remained in sticky material and butyl acetate content can distill by distillation 4h, improves solvent recovering rate further, remains full-bodied solid sticky thing centralized collection and enters paint slag place system.
Paint Slag treatment: in reaction system, in coarse filter device, fine filtering apparatus and reactor, impurity out enters
Paint slag adopts WRS-OR organic waste (resource) to utilize the harmless treatment of system disposing technique, and solution then enters heat treatment, and to carry out solvent richness long-pending.
6, Realization of Product: the mixed solvent reclaiming dimethylbenzene and butyl acetate, by add the composition lacked can be prepared into solvent based coating cleaning agent again reuse to coating system, enable discarded object recycling, further energy-conserving and environment-protective, recycling.
After the emptying afterbody of disposal facility, can continue to add materials, continuous 24h smoothly operation.
Claims (6)
1. a method for waste solvent oil regeneration, is characterized in that step is as follows:
A, coarse filtration: waste solvent oil enters in coarse filter device and filters out large particulate matter;
B, essence are filtered: the waste solvent oil after coarse filtration enters fine filtering apparatus, is filtered out by finely ground particle substance in fine filtering apparatus;
C, the pre-heat treatment: add additive in the waste solvent oil after filtering through essence, and be preheated to design temperature in preheating device;
D, main reaction process: the waste solvent oil after preheating enters main reactor, dimethylbenzene and butyl acetate solvent content gasify and condensation and separation and recovery through distilling;
E, side reaction process: in main reactor, the unreacted material of sticky shape that resin, pigment, aluminium powder and waste solvent oil are formed completely enters auxiliary reactor again, distill gasify also condensation and separation and recovery by the dimethylbenzene remained in sticky material and butyl acetate; Being recovered in coarse filtration step of still not reacting completely after reaction in auxiliary reactor processes;
F, Realization of Product: the mixed solvent reclaiming dimethylbenzene and butyl acetate, by add the composition lacked be prepared into solvent based coating cleaning agent again reuse to coating system;
The residue obtained in described coarse filtration step, smart filtration step and main reaction treatment step enters the process of paint slag disposal system.
2. the method for a kind of waste solvent oil regeneration according to claim 1, is characterized in that: in described a step, and the coarse filter device of employing is 200 object filter screens, is filtered by the resin gel polymers class large particulate matter in waste solvent oil.
3. the method for a kind of waste solvent oil regeneration according to claim 2, is characterized in that: in described b step, and the fine filtering apparatus of employing is 400 object filter screens, the resin in waste solvent oil, pigment and aluminium powder class finely ground particle substance is filtered.
4. the method for a kind of waste solvent oil regeneration according to claim 1, it is characterized in that: in described step c, according to waste solvent oil after the waste solvent oil filtered through essence enters preheating device: additive=100:(0.05 ~ 0.1) mass ratio add, after mixing, mixed solvent is preheated to 80 DEG C, described additive is high-temperature defoamer, the colourless viscous liquid of high-temperature defoamer to be composition be glycerine polyethenoxy ether.
5. the method for a kind of waste solvent oil regeneration according to claim 4, it is characterized in that: in described Step d, main reactor is distillation still, and the vapo(u)rizing temperature in distillation still is 130-150 DEG C, and distillation time is 4 ~ 6h.
6. the method for a kind of waste solvent oil regeneration according to claim 5, it is characterized in that: in described step e, auxiliary reactor is distillation still, and the vapo(u)rizing temperature in distillation still is 150 to 180 DEG C, and distillation time is 4h.
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| CN201410496457.6A CN104368285B (en) | 2014-09-25 | 2014-09-25 | A kind of method of waste solvent oil regeneration |
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| CN201410496457.6A CN104368285B (en) | 2014-09-25 | 2014-09-25 | A kind of method of waste solvent oil regeneration |
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| CN104368285A true CN104368285A (en) | 2015-02-25 |
| CN104368285B CN104368285B (en) | 2016-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698420A (en) * | 2017-11-03 | 2018-02-16 | 新中天环保股份有限公司 | A kind of waste solvent oil separating technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008029968A (en) * | 2006-07-28 | 2008-02-14 | Tsurui Chemical Co Ltd | Halogen-based toxic substance removal/purification/detoxication apparatus |
| US20110044879A1 (en) * | 2006-03-22 | 2011-02-24 | Soos Janos Gyoergy | Process for the treatment and purification of dangerous wastes containing ammonium salts, particularly ammonium chloride, derived from pharmaceutical and chemical technologies |
| CN202223921U (en) * | 2011-07-24 | 2012-05-23 | 天津海阔天平化工有限公司 | Device capable of recycling dimethyl benzene in waste solvent oil |
| CN202387237U (en) * | 2011-01-19 | 2012-08-22 | 王建波 | Device for purifying and regenerating waste organic solvent |
| CN103432816A (en) * | 2013-07-29 | 2013-12-11 | 南京工业大学 | Recovery method and recovery device of waste cleaning solvent |
-
2014
- 2014-09-25 CN CN201410496457.6A patent/CN104368285B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110044879A1 (en) * | 2006-03-22 | 2011-02-24 | Soos Janos Gyoergy | Process for the treatment and purification of dangerous wastes containing ammonium salts, particularly ammonium chloride, derived from pharmaceutical and chemical technologies |
| JP2008029968A (en) * | 2006-07-28 | 2008-02-14 | Tsurui Chemical Co Ltd | Halogen-based toxic substance removal/purification/detoxication apparatus |
| CN202387237U (en) * | 2011-01-19 | 2012-08-22 | 王建波 | Device for purifying and regenerating waste organic solvent |
| CN202223921U (en) * | 2011-07-24 | 2012-05-23 | 天津海阔天平化工有限公司 | Device capable of recycling dimethyl benzene in waste solvent oil |
| CN103432816A (en) * | 2013-07-29 | 2013-12-11 | 南京工业大学 | Recovery method and recovery device of waste cleaning solvent |
Non-Patent Citations (1)
| Title |
|---|
| 焦学瞬等: "《消泡剂制备与应用》", 30 June 1996, 中国轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698420A (en) * | 2017-11-03 | 2018-02-16 | 新中天环保股份有限公司 | A kind of waste solvent oil separating technology |
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