CN1148993A - Comprehensive purifying apparatus for waste acetone and toluene solvant - Google Patents
Comprehensive purifying apparatus for waste acetone and toluene solvant Download PDFInfo
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- CN1148993A CN1148993A CN 95115691 CN95115691A CN1148993A CN 1148993 A CN1148993 A CN 1148993A CN 95115691 CN95115691 CN 95115691 CN 95115691 A CN95115691 A CN 95115691A CN 1148993 A CN1148993 A CN 1148993A
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- still kettle
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- acetone
- toluene
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Abstract
An integral purifying apparatus for both waste acetone and waste toluene solvents is composed of two stages of distillating still and fractionating tower for purifying waste acetone solvent and one stage of distillating still and fractionating tower for purifying waste toluene solvent. Both of them are automatically controlled by temp controller, pressure indicator and flow indicator. Its advantages include easy and safe operation, recovered liquid conforming with the national standard on analytically pure chemical agent, and low cost.
Description
The invention belongs to a kind of recovery purifying plant of spent organic solvent, be specifically related to a kind of matting semiconducter device the device of purifying and recycling again of used acetone and toluene organic solvent.
Well-known in known technology, produce in the semiconducter device process, must use a large amount of organic solvents to carry out matting, wherein, with acetone, toluene is primary solvent, and many production units take disposable use promptly to discard, discharge or burning disposal to these solvents, like this, must cause severe contamination to environment on every side, be the project that environmental administration requires to force improvement; In addition, because acetone and the price of toluene solvant own are higher, disposable use certainly will cause loss and waste economically, has strengthened production cost.The inventor once developed the device that acetone and toluene are reclaimed in single purification respectively, obtained good effect, but the safety prevention measure to inflammable and explosive solvent is relatively poor, and institute's purification recovered solvent quality instability, in addition, because a kind of solvent of its only single extraction, make other solvent in the waste liquid can not efficient recovery.
The purpose of this invention is to provide a kind of safe and reliable, the comprehensive purifying apparatus of can purify simultaneously high quality toluene, acetone solvent.
The objective of the invention is to finish by following measure: it mainly is made up of electric control box, hot well tank, sediment basin, rectifying tower, condenser, strainer and the basin of growing up to be a useful person, it is characterized in that: the rectifying tower of this purification acetone comprises interconnective two-stage, be I level and II level, adorn a still kettle under every grade of rectifying tower, on adorn a partial condenser; Its I level still kettle is communicated with pipeline with waste acetone sediment basin, and I level partial condenser is connected in an adsorption tower by a condenser; The 13X molecular sieve is housed in this adsorption tower; II level still kettle is connected with I level adsorption tower, and II level partial condenser is connected in acetone finished product basin by another condenser; The rectifying tower of this purifying methylbenzene only contains one-level, adorns still kettle equally in its lower section, adorns partial condenser above, and this still kettle is communicated with pipeline with useless toluene sediment basin, and partial condenser is communicated with toluene finished product jar by the 3rd condenser, skimmer; The effect of this skimmer is earlier lower boiling acetone separation to be gone out and transfer in the acetone I level still kettle, and toluene that will be qualified is imported the finished product jar then; At acetone I, II level still kettle inner bottom part the heat exchanger tube that is connected with hot well tank is housed, the still kettle of toluene then is a jacketed type, and the electrically heated thermal oil is housed in its interlayer; In each still kettle, in each rectifying tower top and the adsorption tower temperature controller is housed all, by on the panel of electric control box, utter a word, light display alarm and red-tape operati automatically.
The advantage of this purifying plant is, it can directly be purified in a step is the analytical pure chemical reagent, and steady quality, and rate of recovery height can reach more than 98%; It is simple in structure, easy to operate, safe and reliable, avoids blast accident effectively, and has thoroughly solved the pollution to environment of waste acetone, toluene solvant, and has improved economic benefit and social benefit.
Existing accompanying drawings embodiment of the invention structure:
Fig. 1 is the structure process principle figure of this comprehensive purifying apparatus;
Fig. 2 is an electric control box panel synoptic diagram.
In Fig. 1, the 3 and 10 I level II level rectifying tower of using for purification acetone, still kettle 2 and 9 are housed in its lower section, adorn partial condenser 4 and 11 above, still kettle 2 is communicated with waste acetone sediment basin 1 usefulness pipeline, partial condenser 4 is connected in adsorption tower 8 by condenser 5, the strainer 6 and the pressurized air well heater 7 of regeneration desorb are housed on this only attached tower 8, the 13X molecular sieve is housed in the tower; Still kettle 9 is connected with adsorption tower 8, and partial condenser 11 is communicated with acetone finished product basin 15 by condenser 12, and strainer 14 and moisture eliminator 13 are housed on the basin 15, externally takes a breath; 17 times dresses of toluene rectifying tower still kettle 16, last dress partial condenser 18, still kettle 16 is communicated with toluene sediment basin 23 usefulness pipelines, partial condenser 18 is by condenser 19, and skimmer 20 is communicated with toluene finished product basin 22, and strainer 21 is housed on the basin 22, be used for external ventilation, this skimmer 20 can go out lower boiling acetone separation and transfer to still kettle 2, is purified by the acetone purifying plant and reclaims, and qualified toluene reagent is then imported finished product jar 22.
Inner bottom part in still kettle 2,9 is equipped with the heat exchanger tube that is connected with hot well tank 24, and top is provided with oxygenant inlet 25; Still kettle 16 is a jacketed type, and the electrically heated thermal oil is housed in the interlayer; In each still kettle, in each rectifying tower item and the adsorption tower temperature controller T is housed all, and they control in the still automatically by sound and light display on the electric control box panel and switch and tower in temperature; In addition, the inside of partial condenser 4,11,18 is tubular structure, and rectifying tower inside is double-deck filling-material structure.In still kettle, in the hot-water line, adorn pressure indicator P respectively, adorn flow gauge (FG) L in each partial condenser and the condenser respectively.
The design of this electric control box panel is: sound and light display 26,27,28,29 is temperature indicator, 26 higher limits that show I grade acetone still temperature wherein, 27 show the higher limit of I level rectifying tower temperature, and 28 show the higher limit of II level rectifying Tata temperature, and 29 show toluene rectifying Tata temperature higher limit; 30 is the general supply exhibited light, and 31 is the electrically heated switch and the pilot lamp of hot well tank 24, and 36 is hot well tank intensification heater switch, and 35 is the hot water circulation starting switch; 32 is the switch of switch, exhibited light and the additive air compressor of adsorption tower well heater 7; 33 is the qualified exhibited light of toluene rectifying tower top temperature, and 37 is the heater switch of toluene distillation still, and 34 is the intensification heater switch of this still.
The workflow of this device is: the waste acetone of recovery carries out sediment in basin 1, then quantitatively inject still kettle 2 internal heating, after rectifying tower 3, partial condenser 4, condenser 5 rectifying, enter impurity such as adsorption tower dewaters, alcohol, enter still kettle 9 again, and add potassium permanganate from oxygenant inlet 25 and carry out hot reaction, enter finished product basin 15 through rectifying tower 10, partial condenser 11, condenser 12, a small amount of liquid that discharge at 9 ends of still kettle contains toluene, therefore is injected in the useless toluene basin 23 with the useless toluene solvants that the reclaim recovery of purifying; Collected useless toluene solvant is sediment processing in advance in basin 23, quantitatively inject still kettle 16 heating again, enter skimmer 20 through rectifying tower 17, partial condenser 18 and condenser 19, at this, low boilers is injected in the acetone still kettle 2 by by-pass valve, recoverys of purifying of the waste acetone solvents in still 2, and moisture content wherein is by descending valve to enter waste liquid tank, qualified toluene distillates after liquid-outlet valve enters and waits to wait the filling bottle packing in the finished product jar 22, and a small amount of raffinate is collected to burn and got final product at the bottom of the toluene still.
Claims (4)
1, a kind of waste acetone, toluene solvant comprehensive purifying apparatus are made up of electric control box, hot well tank, basin, rectifying tower, condenser, strainer, the invention is characterized in: the rectifying tower of this purification acetone comprises interconnective two-stage, be I level and II level, adorn a still kettle under every grade of rectifying tower, on adorn a partial condenser; Its I level still kettle is communicated with pipeline with waste acetone sediment basin, and I level partial condenser is connected in an adsorption tower by a condenser; II level still kettle is connected with I level adsorption tower, and II level partial condenser is connected in acetone finished product basin by another condenser; The rectifying tower of purifying methylbenzene has only one-level, also adorns still kettle in its lower section, adorns partial condenser above, and this still kettle is communicated with pipeline with useless toluene sediment basin, and partial condenser is communicated with toluene finished product jar by the 3rd condenser, skimmer; At acetone I, II level still kettle inner bottom part the heat exchanger that is connected with hot well tank is housed, the still kettle of toluene then is a sandwich-type, and the electrically heated thermal oil is housed in its interlayer; In each still kettle, in rectifying tower top and the adsorption tower temperature controller is housed all, they are uttered a word on the panel of electric control box, light display alarm and red-tape operati automatically; In each still kettle, in the hot-water line, pressure indicator is housed respectively, in each partial condenser and condenser, adorns flow gauge (FG) respectively.
2,, it is characterized in that in the adsorption tower of above-mentioned purification acetone the 13X molecular sieve being housed according to the described purifying plant of claim 1.
3,, it is characterized in that the partial condenser inside on above-mentioned each rectifying tower is tubular structure according to claim 1,2 described purifying plants.
4,, it is characterized in that being double-deck filling-material structure in above-mentioned each rectifying tower according to the described purifying plant of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115691A CN1045543C (en) | 1995-10-24 | 1995-10-24 | Comprehensive purifying apparatus for waste acetone and toluene solvant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95115691A CN1045543C (en) | 1995-10-24 | 1995-10-24 | Comprehensive purifying apparatus for waste acetone and toluene solvant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1148993A true CN1148993A (en) | 1997-05-07 |
| CN1045543C CN1045543C (en) | 1999-10-13 |
Family
ID=5080612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115691A Expired - Fee Related CN1045543C (en) | 1995-10-24 | 1995-10-24 | Comprehensive purifying apparatus for waste acetone and toluene solvant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1045543C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001062695A1 (en) * | 2000-02-10 | 2001-08-30 | Illa International L.L.C. | Method of production of product acetone of high stability to oxidation |
| CN107501029A (en) * | 2017-08-07 | 2017-12-22 | 青岛海湾集团有限公司 | A kind of toluene recovery device |
| CN109799259A (en) * | 2019-01-21 | 2019-05-24 | 宁夏神州轮胎有限公司 | One meridian line tyre detection toluene, acetone, carbon disulfide recovery method |
| CN111111248A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040576A (en) * | 1989-09-19 | 1990-03-21 | 马红龙 | Technology for production of refined naphthalene by crystalization in solvents |
| FR2718977B1 (en) * | 1994-04-22 | 1996-06-07 | Air Liquide | Process and installation for separation of a gas mixture by cryogenic distillation. |
-
1995
- 1995-10-24 CN CN95115691A patent/CN1045543C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001062695A1 (en) * | 2000-02-10 | 2001-08-30 | Illa International L.L.C. | Method of production of product acetone of high stability to oxidation |
| CN107501029A (en) * | 2017-08-07 | 2017-12-22 | 青岛海湾集团有限公司 | A kind of toluene recovery device |
| CN111111248A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
| CN111111248B (en) * | 2018-10-30 | 2021-10-15 | 中国石油化工股份有限公司 | Device and method for recovering toluene from organic solvent for preparing polyolefin catalyst |
| CN109799259A (en) * | 2019-01-21 | 2019-05-24 | 宁夏神州轮胎有限公司 | One meridian line tyre detection toluene, acetone, carbon disulfide recovery method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045543C (en) | 1999-10-13 |
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