CN101215063B - Integral treatment method for waste water of acephate producing process - Google Patents
Integral treatment method for waste water of acephate producing process Download PDFInfo
- Publication number
- CN101215063B CN101215063B CN2007101690803A CN200710169080A CN101215063B CN 101215063 B CN101215063 B CN 101215063B CN 2007101690803 A CN2007101690803 A CN 2007101690803A CN 200710169080 A CN200710169080 A CN 200710169080A CN 101215063 B CN101215063 B CN 101215063B
- Authority
- CN
- China
- Prior art keywords
- acid
- waste water
- producing process
- acephate
- acetic acid
- 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.)
- Expired - Fee Related
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a sewage water treating method, in particular to a comprehensive treatment method of sewage water of n-acetoacetyl methylamine production. The invention is characterized in that adding acid into the sewage water of n-acetoacetyl methylamine production with the temperature controlled between 0-100 DEG C, adjusting pH value to 0.5-9, then distilling and crystallizing at thetemperature between 50-150 DEG C and separating out dilute acetic acid and inorganic ammonium salt. The invention has the advantages of reasonable process flow, convenient operation and low disposal cost. Employing the invention technique can increase benefit, also can reduce the discharging capacity of the contaminant and meet the environmental protection need of clean production and energy saving and discharge reducing, thereby the invention has important value of popularization and application.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, specifically a kind of integrated conduct method of waste water of acephate producing process.
Background technology
Can produce a large amount of waste water that contains ammonium acetate in the sterilant acephate production process, 1 ton of acephate of every production can produce 2 tons of waste water that contain the ammonium acetate about 30%.Domestic most of producers all directly discharge this waste water through after the biochemical treatment at present.The drawback of this method is: ammonia nitrogen in waste water content height, biochemical treatment difficulty are big and processing cost is high, more it's a pity and have wasted renewable resources-ammonium acetates a large amount of in the waste water.Therefore, our treatment process of inventing a kind of waste water of acephate producing process is highly profitable.
Summary of the invention
Purpose of the present invention is exactly the defective at prior art, a kind of integrated conduct method of waste water of acephate producing process is provided, adopt ammonium salt and the acetic acid of the present invention in can the efficient recovery waste water of acephate producing process, reach the increase benefit, reduce the purpose of blowdown.
Technical scheme of the present invention is achieved in that it is to add acid or alkali in waste water of acephate producing process, regulates PH=0.5～9, and temperature of reaction is controlled at 30～100 ℃, distills and crystallization, isolates dilute acetic acid and inorganic ammonium salt.
Wherein said acid is hydrochloric acid, phosphoric acid, phosphorous acid, sulfuric acid or nitric acid.
Waste water of acephate producing process is added an amount of mineral acid at 0～100 ℃, regulate PH=0.5～9, reclaim dilute acetic acid by distillation, obtain inorganic ammonium salt by crystallization again at 50～150 ℃.The dilute acetic acid that reclaims can be refined into 98～99% acetic acid, or is used for acetic acid synthesized sodium, reaches the requirement of technical grade product.Meet the technical grade product quality standard after the inorganic ammonium salt drying that crystallizes out.
The technical process that the present invention adopts is reasonable, easy to operate, and processing cost is lower, the production environment cleaning.By adopting this technology, can reach the purpose that increases benefit, can reduce the discharging of pollutent again, meet the cleaner production of country's proposition, the environmental requirement of energy-saving and emission-reduction.Therefore, the present invention has important generalization and application value.
Embodiment
Below in conjunction with example the present invention is further described, but in the technical process the present invention is not subjected to the restriction of embodiment.
Embodiment 1:
Get the waste water of acephate producing process 604g that contains ammonium acetate 30%, 30 ℃ of control reaction temperature add hydrochloric acid 150g, transfer PH=3, and it is 25% dilute acetic acid that distillation obtains 508g content, the acetic acid rate of recovery 90%, and it is 98% ammonium chloride that crystallization obtains 125g content.
Get 176.5g content and be 25% dilute acetic acid, 30～100 ℃ of control reaction temperature add soda ash 42g, transfer PH=8, and it is 98%NaAc3H that the distillation crystallization obtains 95g content
2O, yield 95%.
Embodiment 2:
Get the waste water of acephate producing process 518g that contains ammonium acetate 35%, 100 ℃ of control reaction temperature add hydrochloric acid 150g, transfer PH=4, it is 25% dilute acetic acid that distillation obtains 508g content, the acetic acid rate of recovery 90%, and it is 98% ammonium chloride that crystallization obtains 125g content.
Get 176.5g content and be 25% dilute acetic acid, 30～100 ℃ of control reaction temperature add soda ash 42g, transfer PH=9, and it is 98%NaAc3H that the distillation crystallization obtains 95g content
2O, yield 95%.
Embodiment 3:
Get the waste water of acephate producing process 518g that contains ammonium acetate 35%, 60 ℃ of control reaction temperature add hydrochloric acid 150g, transfer PH=6, and it is 25% dilute acetic acid that distillation obtains 508g content, the acetic acid rate of recovery 90%, and it is 98% ammonium chloride that crystallization obtains 125g content.
Get 176.5g content and be 25% dilute acetic acid, 30～100 ℃ of control reaction temperature add soda ash 42g, transfer PH=11, and it is 98%NaAc3H that the distillation crystallization obtains 95g content
2O, yield 95%.
Claims (3)
1. the integrated conduct method of a waste water of acephate producing process, it is to add acid in waste water of acephate producing process, regulates PH=0.5～9, and temperature is controlled at 30～100 ℃ when adding acid, distill and crystallization at 50～150 ℃ then, isolate dilute acetic acid and inorganic ammonium salt.
2. the integrated conduct method of a kind of waste water of acephate producing process according to claim 1, wherein said acid is hydrochloric acid, phosphoric acid, phosphorous acid, sulfuric acid or nitric acid.
3. the integrated conduct method of a kind of waste water of acephate producing process according to claim 1 wherein adds soda ash with isolated dilute acetic acid, regulates PH=7～11, and the distillation crystallization obtains sodium-acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101690803A CN101215063B (en) | 2007-12-27 | 2007-12-27 | Integral treatment method for waste water of acephate producing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101690803A CN101215063B (en) | 2007-12-27 | 2007-12-27 | Integral treatment method for waste water of acephate producing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101215063A CN101215063A (en) | 2008-07-09 |
| CN101215063B true CN101215063B (en) | 2010-06-09 |
Family
ID=39621584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101690803A Expired - Fee Related CN101215063B (en) | 2007-12-27 | 2007-12-27 | Integral treatment method for waste water of acephate producing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101215063B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921035B (en) * | 2009-06-10 | 2012-07-11 | 河北欧克精细化工股份有限公司 | Method for treating waste water and waste liquor in titanium tetrachloride industrial production process |
| CN102701490B (en) * | 2012-07-02 | 2013-11-06 | 江汉大学 | Treatment method of acephate production process wastewater |
| CN104140176B (en) * | 2013-09-16 | 2016-03-23 | 河南省华鼎高分子合成树脂有限公司 | The treatment process of the rectifying waste liquid of output in a kind of maleimide production process |
| CN108689541A (en) * | 2018-04-24 | 2018-10-23 | 江苏蓝丰生物化工股份有限公司 | The processing method of the waste water containing ammonium acetate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327953A (en) * | 2001-06-06 | 2001-12-26 | 水志良 | Process for treating waste liquid of furaldehyde and recovering butyl acetate, ammonium sulfate, ammonium acetate, acetamide and acetonitrile |
-
2007
- 2007-12-27 CN CN2007101690803A patent/CN101215063B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327953A (en) * | 2001-06-06 | 2001-12-26 | 水志良 | Process for treating waste liquid of furaldehyde and recovering butyl acetate, ammonium sulfate, ammonium acetate, acetamide and acetonitrile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101215063A (en) | 2008-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107902823A (en) | The recovery and treatment method of the high-salt wastewater of sodium chloride-containing and sodium sulphate | |
| CN101215063B (en) | Integral treatment method for waste water of acephate producing process | |
| CN102633382B (en) | 4,6-dichloropyrimidine waste water treatment and resource recovery method | |
| CN101314609B (en) | Process for preparing D-glucosamine hydrochlorate | |
| CN102041389A (en) | Method for producing rare earth carbonate by recycling rare earth carbonate precipitation waste liquid | |
| CN103408460B (en) | Recovery method of secondary products of iminodiacetonitrile and mother liquid treatment method | |
| CN101323614A (en) | Acidum folicum production method without sewerage discharge | |
| CN101747173A (en) | Method utilizing acetic acid in PTA oxidation residues to prepare sodium acetate trihydrate | |
| CN112898299A (en) | Preparation method of palbociclib intermediate | |
| CN101289464B (en) | Process for recovering triphenyl phosphine oxide and 2-mercaptobenzothiazole from production waste liquid of cephalothin active ester | |
| CN101311107B (en) | Method for gas stripping and separating hydrazine from hydrazine-containing solution using acetone and use thereof | |
| CN100374405C (en) | Process for preparing calcium formate from recovered formylic acid in waste water of epoxy soybean oil | |
| CN101735088B (en) | Production process of glutamic acid and monosodium glutamate | |
| CN1155521C (en) | Directly heating and decomposing plate heat exchanging technology for alumina laterite washing | |
| CN110922417B (en) | Method for recovering cefalexin crystallization mother liquor | |
| CN101734667A (en) | Process for producing precipitated white carbon black by silicon tetrachloride | |
| CN1772601A (en) | Hydrochloric acid process of producing feed level calcium diphosphate and gypsum coproduct | |
| CN105111088A (en) | Method for recycling triethylamine from wastewater containing triethylamine hydrochloride | |
| CN101003489A (en) | Method for producing L - aspartic acid | |
| CN113200907B (en) | Novel method for treating amination reaction wastewater of monosultap synthesis process | |
| CN103524553A (en) | Pmida mother liquor comprehensive treatment method | |
| CN101723842B (en) | Method for preparing ethylene diamine tetraacetic acid (EDTA) disodium salt | |
| CN103570522A (en) | Method for producing 99.5% of sodium formate | |
| RU2504534C1 (en) | Method of producing methyl chloride | |
| CN101643400B (en) | Method for extracting succinic acid from fermentation liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20201227 |