CN102531862A - Comprehensive utilization method for organic waste liquor generated in hydrazine hydrate production process - Google Patents
Comprehensive utilization method for organic waste liquor generated in hydrazine hydrate production process Download PDFInfo
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- CN102531862A CN102531862A CN2010106214792A CN201010621479A CN102531862A CN 102531862 A CN102531862 A CN 102531862A CN 2010106214792 A CN2010106214792 A CN 2010106214792A CN 201010621479 A CN201010621479 A CN 201010621479A CN 102531862 A CN102531862 A CN 102531862A
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- waste liquid
- waste liquor
- composition
- hydrazine hydrate
- comprehensive utilization
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Abstract
The invention discloses a comprehensive utilization method for organic waste liquor generated in a hydrazine hydrate production process, which comprises the following steps: 1, converting organic waste liquor ingredients, and converting useless organic ingredients in the waste liquor into useful chemical substance by chemical reaction; and 2, separating all ingredients after reaction. With the comprehensive utilization method for the organic waste liquor generated in the hydrazine hydrate production process, 70% of chemical ingredients in the waste liquor can be recycled, 20% of moisture is extracted, and only 10% of residues remain. The residues do not contain an N element ingredient which pollutes atmosphere, and pressure for drastic reduction incineration disposal can be reduced.
Description
Technical field:
The present invention relates to a kind of organic liquid waste comprehensive utilization method background technology that Hazardous wastes is disposed the field that belongs to: dispose in the industry at Hazardous wastes; Disposal options to organic waste is normally done burning disposal; Because it is elementary composition that organic structure mainly contains C, H, O, self possesses inflammable or combustible physical property.Nonflammable organism can burn when envrionment temperature is enough high equally under indivedual normal temperature.Yet the risk of burning disposal has two: when incineration temperature is improper, be prone to produce dioxin; In organism, contain other elements, be prone to produce harmful atmospheric composition.According to the disposal principle of solid waste " resource utilization, minimizing, innoxious ", should be to the recycling as far as possible of the organic composition in the refuse.
The Hazardous wastes that the present invention was directed against is that ketone joins the nitrogen method production organic waste that Hydrazine Hydrate 80 produced.This refuse is in the past always by burning disposal.But, owing to contain more N elemental composition in this refuse, and contain higher moisture (>=20%), so can produce a large amount of NOization things, atmosphere pollution, and incomplete combustion in the burning process.
The present invention utilizes the chemical property of component of effluent; Through chemical reaction the chemical ingredients in the waste liquid is transformed; Isolate the N elemental composition, and the organic substance that has no utility value in the former waste liquid is changed into the higher chemical solvents of utility value, auxilliary in the physical sepn means; Realize that the resource utilization of this kind waste liquid utilizes environmental benefit and economic benefit again.
Summary of the invention:
Goal of the invention: realize that ketone joins the comprehensive utilization that the nitrogen method is produced the organic waste that Hydrazine Hydrate 80 produced; The mode of waste liquid with chemical reaction realized the material conversion and extract most of available composition; Remove the harmful element that causes environmental pollution when burning, reach the purpose of minimizing burning disposal.
Technical scheme: the representative that ketone joins the nitrogen method production organic liquid waste that Hydrazine Hydrate 80 produced consists of:
Ketone joins nitrogen content 10%-20%
The different third hydrazone 18%-25%
Hydrazone 1%-5%
Acetone 8%-15%
Virahol 2%-5%
Moisture 20%-30%
Other≤1%
The comprehensive utilization principle:
1. composition transforms: the no any direct use value in reality of " hydrazone " composition in the waste liquid.Its chemical bonding structure formula is RR=N-NH
2, perhaps RR=C=NNHRR, wherein R is C, H group.As far as this component of effluent, R refers to propyl group and isopropyl group.
Through adding a kind of oxygenant the N-N radical reaction of hydrazone is fallen, the residue groups converted becomes ketone, alcohol.
RR＝N-NH
2+HA＝RR-OH+H
2N.A+H
2O
RR＝N-N-RR+HA＝RR-O+(H
2N-NH
2)A+H
2O
2. component separating: be rich in hydrazine, acetone, Virahol, acetone polycondensate in the reacted composition, one by one it separated through means such as filtration, rectifying, recrystallizations then.
Embodiment:
Waste liquid is slowly added the oxygenant sulfuric acid that concentration is 60%-98% (look waste liquid form decide) under cold conditions (temperature≤20 ℃) and whipped state, the sulfuric acid add-on reaches 6 with the waste liquid pH value and is as the criterion.Sulfuric acid can react with the various hydrazone compositions in the waste liquid, and group hydrazone (N-NH) wherein changes into hydrazonium sulfate, and different third hydrazone changes into Virahol, and ketone joins nitrogen transformation and becomes acetone, methyl isobutyl ketenes.Part acetone changes into polycondensate
Later separation is handled:
Under cold conditions, hydrazonium sulfate can be precipitated out in reaction process.The hydrazonium sulfate that filters out with cold water washing and recrystallization, is got pure article hydrazonium sulfate;
Residual waste solution is isolated acetone with rectifying device at 56.4 ℃ earlier, goes out Virahol-water azeotrope (content 88.3%) 80.5 ℃ of rectifying again, and surplus liquid is water, acetone polymkeric substance.Go out moisture with the purified petroleum benzin component distillation, distillation residue are methyl isobutyl ketenes, the acetone polymkeric substance of boiling point higher (more than 120 ℃).
Virahol-water azeotrope gets pure article Virahol through the benzene distillation dehydration.
Claims (1)
1. ketone joins the organic liquid waste that produces in the production of nitrogen method Hydrazine Hydrate 80, and its comprehensive utilization step has two:
(1)。The conversion of chemical ingredients in the waste liquid: at the following sulfuric acid that just slowly adds 60%-98% (look waste liquid form and decide) that stirs of cold conditions, " hydrazone " composition in the waste liquid is fully reacted waste liquid, change into hydrazonium sulfate, acetone, Virahol composition; The sulfuric acid add-on reaches 6 with the waste liquid pH value and is as the criterion.
(2)。Transform the separation of each composition of back: separate and the purification of sulphuric acids hydrazine with filtering with recrystallization; Isolate acetone and Virahol with the rectifying mode; Isolate moisture with the purified petroleum benzin azeotropic distillation.So realize the recovery of 70% working substance, the proposition of 20% moisture.Resistates is acetone oligopolymer, methyl isobutyl ketenes composition at the bottom of 10% the still, can make innoxious burning and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106214792A CN102531862A (en) | 2010-12-27 | 2010-12-27 | Comprehensive utilization method for organic waste liquor generated in hydrazine hydrate production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106214792A CN102531862A (en) | 2010-12-27 | 2010-12-27 | Comprehensive utilization method for organic waste liquor generated in hydrazine hydrate production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102531862A true CN102531862A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106214792A Pending CN102531862A (en) | 2010-12-27 | 2010-12-27 | Comprehensive utilization method for organic waste liquor generated in hydrazine hydrate production process |
Country Status (1)
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| CN (1) | CN102531862A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086362A (en) * | 2014-07-08 | 2014-10-08 | 潍坊蓝海环境保护有限公司 | Method for recycling organic solvents of wastewater generated in synthesis of hydrazine hydrate by ketazine method |
| CN107922191B (en) * | 2015-08-03 | 2020-10-16 | 三菱瓦斯化学株式会社 | Method for cleaving azine bond or hydrazone bond |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174066A (en) * | 1995-12-27 | 1997-07-08 | Mitsubishi Kakoki Kaisha Ltd | Method for treating hydrazine-containing wastewater |
| CN1686856A (en) * | 2005-04-22 | 2005-10-26 | 宜宾天原股份有限公司 | Method of treating wastewater containing salt for producing hydrazine hydrate by carbamide method |
| CN1745914A (en) * | 2005-10-13 | 2006-03-15 | 宜宾天原股份有限公司 | Recovering method of acetone and ammonia in hydrated hydrazine waste salt water by ketone azine method |
| CN101058468A (en) * | 2006-04-18 | 2007-10-24 | 潍坊亚星集团有限公司 | Method of processing hydrazine hydrate waste water by ketone linking nitrogen method |
-
2010
- 2010-12-27 CN CN2010106214792A patent/CN102531862A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174066A (en) * | 1995-12-27 | 1997-07-08 | Mitsubishi Kakoki Kaisha Ltd | Method for treating hydrazine-containing wastewater |
| CN1686856A (en) * | 2005-04-22 | 2005-10-26 | 宜宾天原股份有限公司 | Method of treating wastewater containing salt for producing hydrazine hydrate by carbamide method |
| CN1745914A (en) * | 2005-10-13 | 2006-03-15 | 宜宾天原股份有限公司 | Recovering method of acetone and ammonia in hydrated hydrazine waste salt water by ketone azine method |
| CN101058468A (en) * | 2006-04-18 | 2007-10-24 | 潍坊亚星集团有限公司 | Method of processing hydrazine hydrate waste water by ketone linking nitrogen method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086362A (en) * | 2014-07-08 | 2014-10-08 | 潍坊蓝海环境保护有限公司 | Method for recycling organic solvents of wastewater generated in synthesis of hydrazine hydrate by ketazine method |
| CN107922191B (en) * | 2015-08-03 | 2020-10-16 | 三菱瓦斯化学株式会社 | Method for cleaving azine bond or hydrazone bond |
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Application publication date: 20120704 |