CN1301913C - Avermectin-containing waste liquor recovery process - Google Patents
Avermectin-containing waste liquor recovery process Download PDFInfo
- Publication number
- CN1301913C CN1301913C CNB2005100482128A CN200510048212A CN1301913C CN 1301913 C CN1301913 C CN 1301913C CN B2005100482128 A CNB2005100482128 A CN B2005100482128A CN 200510048212 A CN200510048212 A CN 200510048212A CN 1301913 C CN1301913 C CN 1301913C
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- CN
- China
- Prior art keywords
- avrmectin
- extraction
- abamectin
- emulsification
- extraction agent
- 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.)
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The present invention discloses a technology for recovering waste liquor containing abamectin. The method comprises the following steps that an extraction agent is pumped into an extraction tower containing an abamectin wastewater solution with sugar removal under the stirring state, and continuously stirred, and the extraction tower is heated by steam; the extraction agent and the wastewater solution are kept in a standing way after being continuously stirred, the wastewater solution containing sugar and the emulsifying object in the standing liquid are orderly exhausted, a demulsifying agent is added to the emulsifying object to be continuously stirred, kept in the standing way and separated, the viscous object containing abamectin at the upper layer is pumped into the extraction tower, and the wastewater and the residues after being extracted multiple times are exhausted; the remained extraction liquid containing abamectin is settled, separated, evaporated and concentrated, the evaporated extraction agent is circularly used after being condensed, the extractant of abamectin ointment is prepared in a balanced way, and then the finished product is prepared. After being detected, the ointment B1a content reaches 3.5 to 5%. The present invention solves the problem of severe pollution caused by the exhaust of the abamectin wastewater with sugar removal, production plants with the annual designed capacity of 100 tons can recover the abamectin of 1.8 tons, and the present invention has obvious social and economic benefit, environmental benefit and popularization value.
Description
Technical field
The present invention relates to the chemical production field wastewater treatment, be specifically related to a kind of recovery technology of from the desugar waste water solution that contains Avrmectin, extracting Avrmectin.
Background technology
Avrmectin is a kind of biological pesticide that generates through fermentation since its have efficiently, the characteristic of the anti-insect activity of wide spectrum and low toxicity, noresidue, thereby obtain more and more widely use in fields such as agricultural herdings.Yet, the trade effluent that in the Avrmectin production process, produces, particularly the part of the Avrmectin in the Avrmectin ointment desugar waste water forms with emulsification and exists, be that emulsified thing is sheltered, the content that records is far below actual content, thereby having very high pollution index, people once taked the way that the poisonous waste liquid of this stench, strong toxicity is burnt is solved its pollution problem, but owing to a variety of causes produces little effect; Also once adopted biochemical process or other degradation method to handle, but do not reach the pollutant emission index of national defined or just can't enter Sewage treatment systems at all, often make enterprise be forced to the poisonous waste liquid of this severe overweight is directly discharged, thereby surrounding environment has been caused had a strong impact on for a long time, make surface water and underground water suffer severe contamination, what make the people healthyly is subjected to serious threat, has become the great outstanding problem that pharmacy corporation and environmental administration need to be resolved hurrily.
Goal of the invention
At existing Avrmectin desugar wastewater treatment present situation, the invention provides a kind of recovery technology of from the desugar waste water that contains Avrmectin, extracting the Avrmectin ointment, in order to solve problems of the prior art.
Summary of the invention
The present invention seeks to realize like this: this Avrmectin waste liquor recovery process that contains is characterized in that it comprises the following steps:
A. at first under whipped state, extraction agent pumped into the pH value and be in the extraction tower of 5,7 or 9 Avrmectin desugar waste water solution, continue to stir and this extraction tower steam heating;
B. when above-mentioned solution temperature reaches 70～75 ℃, stop heating, continue stirring and be divided into three layers after 1～2 hour, be followed successively by the extraction liquid that contains Avrmectin, the emulsification that contains Avrmectin and sucrose-containing wastewater solution from top to bottom, left standstill then 12～15 hours;
C. the above-mentioned sucrose-containing wastewater solution that leaves standstill in the liquid is discharged successively with the emulsification that contains Avrmectin, in containing the emulsification of Avrmectin, slowly add emulsion splitter, continue stirring until this emulsification breakdown of emulsion layering, leave standstill then, separate, its dope that contains Avrmectin at the middle and upper levels pumps into extraction tower, waste water and the residue discharging through forming after repeatedly extracting;
D. the c step being left standstill in the liquid the remaining extraction liquid that contains Avrmectin is that 0.08～0.09Mpa, temperature are evaporation concentration under 50～80 ℃ of conditions in vacuum tightness after settlement separate, the extraction agent that evaporates recycles after condensation, extract Avrmectin ointment carries out finished product packing after the equilibrium batching, after testing, the content of ointment B1a reaches 3.5～5%.
The volume ratio of described extraction agent and Avrmectin desugar waste water solution is 1: 5～1: 6.
Described extraction agent is selected one or both in toluene or the dimethylbenzene for use, selecting toluene or dimethylbenzene for use is that extraction agent mainly is to utilize sugar to be insoluble to toluene and dimethylbenzene, and Avrmectin has the character of bigger solubleness in toluene or dimethylbenzene, Avrmectin in the Avrmectin desugar waste water solution is come out by toluene or xylene extraction, thereby make the Avrmectin in the above-mentioned waste liquid separate the purpose that reaches the recovery Avrmectin with syrup.
Described emulsion splitter is selected NaCl, KaCl or CaCl for use
2In a kind of, at described NaCl, KaCl or the CaCl that adds in the emulsification of Avrmectin that contain
2Amount so that containing the emulsification of Avrmectin reaches breakdown of emulsion and is layered as suitablely, in containing the emulsification of Avrmectin, add above-mentioned emulsion splitter and can play good demulsification this emulsification, the Avrmectin in the emulsification can more thoroughly obtain reclaiming.Avrmectin content does not detect in the waste water after recycling.
The technical progress that the present invention obtains:
1. owing to adopt the present invention to reclaim technology, efficiently solve and contain the serious problem of environmental pollution that the discharging of Avrmectin desugar waste water solution brings, for numerous Avrmectin pesticide producing producer has found one fundamentally to solve a desugar waste water treatment difficult problem, thereby huge social benefit and environmental benefit are arranged.
2. present device technology is simple, both can thoroughly reclaim the Avrmectin in the waste liquid, and also can make the sugar in residue and the waste water obtain comprehensive utilization, by statistics, Avrmectin year 100 tons of designed capacitys factory only Avrmectin just can year reclaim 1.8 tons, have remarkable economic efficiency and promotional value.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Embodiment 1: will (be about as much as 250～300ppM) and pump into the steam jacket extraction tower less than 500 Avrmectin desugar waste water solution from tiring of the 6000L of the modulated good pH value of Avrmectin pharmaceutical factory, under whipped state, the xylene extraction agent of 1000L is pumped in the above-mentioned Avrmectin desugar waste water solution then, continue to stir and use steam heating, when above-mentioned solution temperature reaches 70～75 ℃, stop heating, continue to stir after 1～2 hour and left standstill 12～15 hours.The above-mentioned liquid that leaves standstill divides three layers, is followed successively by the extraction liquid that contains Avrmectin, the emulsification that contains Avrmectin and sucrose-containing wastewater solution from top to bottom.Then sucrose-containing wastewater solution and the emulsification that contains Avrmectin are discharged successively from the extraction tower bottom, wherein sucrose-containing wastewater solution is delivered to the biochemical waste water treatment system; The emulsification that contains Avrmectin slowly adds solid NaCl emulsion splitter under whipped state, make this emulsification form the breakdown of emulsion layering, it is at the middle and upper levels for containing the dope of Avrmectin, lower floor is a waste water, the dope that will contain Avrmectin after leaving standstill returns above-mentioned extraction tower, be used as fertilizer after the residue drying that forms after extracting repeatedly, waste water send Sewage treatment systems; The extraction liquid that contains Avrmectin is that 0.08～0.09Mpa, temperature are for being no more than evaporation concentration under 80 ℃ of conditions in vacuum tightness after settlement separate, the dimethylbenzene that evaporates returns the extraction agent storage tank and recycles after condensation, the Avrmectin ointment after concentrating enters finished product packing after the equilibrium batching.
Embodiment 2: the present embodiment difference from Example 1 is the toluene extraction agent replacement xylene extraction agent with 1200L, and the NaCl emulsion splitter is with KaCl or CaCl
2Substitute.
Embodiment 3: the present embodiment difference from Example 1 is to be extraction agent with toluene and dimethylbenzene with the mixed solution of the 1200L of arbitrary proportion, and the NaCl emulsion splitter is with KaCl or CaCl
2Substitute.
Claims (4)
1. one kind contains the Avrmectin waste liquor recovery process, it is characterized in that it comprises the following steps:
A. at first under whipped state, extraction agent pumped into the pH value and be in the extraction tower of 5,7 or 9 Avrmectin desugar waste water solution, continue to stir and this extraction tower steam heating;
B. when above-mentioned solution temperature reaches 70～75 ℃, stop heating, continue stirring and be divided into three layers after 1～2 hour, be followed successively by the extraction liquid that contains Avrmectin, the emulsification that contains Avrmectin and sucrose-containing wastewater solution from top to bottom, left standstill then 12～15 hours;
C. the above-mentioned sucrose-containing wastewater solution that leaves standstill in the liquid is discharged successively with the emulsification that contains Avrmectin, in containing the emulsification of Avrmectin, slowly add emulsion splitter, continue stirring until this emulsification breakdown of emulsion layering, leave standstill then, separate, its dope that contains Avrmectin at the middle and upper levels pumps into extraction tower, waste water and the residue discharging through forming after repeatedly extracting;
D. the c step being left standstill in the liquid the remaining extraction liquid that contains Avrmectin is that 0.08～0.09Mpa, temperature are evaporation concentration under 50～80 ℃ of conditions in vacuum tightness after settlement separate, the extraction agent that evaporates recycles after condensation, and extract Avrmectin ointment carries out finished product packing after the equilibrium batching.
2. the Avrmectin waste liquor recovery process that contains according to claim 1 is characterized in that the volume ratio of described extraction agent and Avrmectin desugar waste water solution is 1: 5～1: 6.
3. the Avrmectin waste liquor recovery process that contains according to claim 1 is characterized in that described extraction agent selects one or both in toluene or the dimethylbenzene for use.
4. the Avrmectin waste liquor recovery process that contains according to claim 1 is characterized in that described emulsion splitter selects NaCl, KaCl or CaCl for use
2In a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100482128A CN1301913C (en) | 2005-12-21 | 2005-12-21 | Avermectin-containing waste liquor recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100482128A CN1301913C (en) | 2005-12-21 | 2005-12-21 | Avermectin-containing waste liquor recovery process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1800035A CN1800035A (en) | 2006-07-12 |
| CN1301913C true CN1301913C (en) | 2007-02-28 |
Family
ID=36810297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100482128A Expired - Fee Related CN1301913C (en) | 2005-12-21 | 2005-12-21 | Avermectin-containing waste liquor recovery process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1301913C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830931A (en) * | 2012-11-27 | 2014-06-04 | 张勇 | Full-automatic extraction-evaporation device |
| CN105503982A (en) * | 2015-11-17 | 2016-04-20 | 石家庄市兴柏生物工程有限公司 | Abamectin extraction process |
| CN110240622A (en) * | 2019-06-05 | 2019-09-17 | 江苏物网慧农科技集团有限公司 | It is a kind of produce during avermectin without benzene desugar technique |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135190A (en) * | 1988-11-17 | 1990-05-24 | Mitsui Petrochem Ind Ltd | Treatment of waste water containing phosphorus |
-
2005
- 2005-12-21 CN CNB2005100482128A patent/CN1301913C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135190A (en) * | 1988-11-17 | 1990-05-24 | Mitsui Petrochem Ind Ltd | Treatment of waste water containing phosphorus |
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| Publication number | Publication date |
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| CN1800035A (en) | 2006-07-12 |
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