CN101531433A - Process for recovering residual liquid in hydrogen peroxide concentration - Google Patents
Process for recovering residual liquid in hydrogen peroxide concentration Download PDFInfo
- Publication number
- CN101531433A CN101531433A CN200910020359A CN200910020359A CN101531433A CN 101531433 A CN101531433 A CN 101531433A CN 200910020359 A CN200910020359 A CN 200910020359A CN 200910020359 A CN200910020359 A CN 200910020359A CN 101531433 A CN101531433 A CN 101531433A
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- China
- Prior art keywords
- hydrogen peroxide
- residual liquid
- separation
- peroxide concentration
- pump
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention relates to a process for recovering residual liquid in hydrogen peroxide concentration, which comprises the following steps that: a dilute product of a raw material is subjected to separation in a primary vapor separator; the reminded liquid after the separation first enters a primary residual liquid tank and then pumped into a secondary vapor separator for separation; and the remained liquid after the separation is pumped into a diluting and purifying device to be treated. The primary residual liquid tank is connected with the diluting and purifying device through a pump. The process has the advantages of reducing total sewage discharge capacity, increasing yield, saving energy, reducing emission, improving economic benefits, along with easy operation, simple process, continuously production, and the like.
Description
Technical field:
The present invention relates to a kind of chemical industry treatment process, especially a kind of technology that residual liquid in hydrogen peroxide concentration is reclaimed.
Background technology:
The hydrogen peroxide that existing hydrogen peroxide concentration technique is a lower concentration successively passes through the double flash evaporation tripping device, produces product after rectifying.In the double flash evaporation tripping device, have residual solution and produce, quantity is about 10% of dense product output.For preventing to pollute, be sent to sewage work after this residual solution is concentrated and handle.So promptly strengthen blowdown flow rate, increased steam consumption and power consumption again.
Summary of the invention:
The object of the present invention is to provide a kind of process for recovering residual liquid in hydrogen peroxide concentration, residual solution is reclaimed handled, it is produced is qualified hydrogen peroxide product.
The technical solution adopted in the present invention is: a kind of process for recovering residual liquid in hydrogen peroxide concentration, the steps include: that the rare product of raw material separate through the single vaporization separator, enter and once remain liquid bath, pump into the double evaporation-cooling separator then and separate, the residual solution after the separation pumps into the dilution refining plant and handles; Once remaining liquid bath is connected by pump with the dilution refining plant.
The invention has the beneficial effects as follows: reduce total amount of pollutants discharged, increased output, the purpose of reached energy-saving and emission-reduction, increasing economic efficiency, processing ease, technology is simple, energy continuous production etc.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Among the figure, 1 is the single vaporization separator, and 2 is the double evaporation-cooling separator, and 3 for once remaining liquid bath, and 4 is pump, and 5 is pump, and 6 are the quadratic residue liquid bath, and 7 are the dilution refining plant
Embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
A kind of process for recovering residual liquid in hydrogen peroxide concentration, the steps include: that the rare product of raw material separate through single vaporization separator 1, enter and once remain liquid bath 3, going into double evaporation-cooling separator 2 by pump 4 separates, residual solution after the separation enters quadratic residue liquid bath 6, goes into to dilute refining plant 7 by pump 5 at last and handles; Obtain the rare product of qualified hydrogen peroxide.Once remaining liquid bath 3 is connected by pump 5 with dilution refining plant 7.1 ton of dense product of every production can reduce 0.15～0.2 ton (amounting to 27.5% hydrogen peroxide) of hydrogen peroxide loss.
Claims (1)
1, a kind of process for recovering residual liquid in hydrogen peroxide concentration, the steps include: that the rare product of raw material separate through the single vaporization separator, enter and once remain liquid bath, pump into the double evaporation-cooling separator then and separate, the residual solution after it is characterized in that separating pumps into the dilution refining plant and handles; Once remaining liquid bath is connected by pump with the dilution refining plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910020359A CN101531433A (en) | 2009-04-23 | 2009-04-23 | Process for recovering residual liquid in hydrogen peroxide concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910020359A CN101531433A (en) | 2009-04-23 | 2009-04-23 | Process for recovering residual liquid in hydrogen peroxide concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101531433A true CN101531433A (en) | 2009-09-16 |
Family
ID=41102319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910020359A Pending CN101531433A (en) | 2009-04-23 | 2009-04-23 | Process for recovering residual liquid in hydrogen peroxide concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101531433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110121480A (en) * | 2017-02-22 | 2019-08-13 | 三菱瓦斯化学株式会社 | Refine the manufacturing method and manufacture system of aqueous hydrogen peroxide solution |
-
2009
- 2009-04-23 CN CN200910020359A patent/CN101531433A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110121480A (en) * | 2017-02-22 | 2019-08-13 | 三菱瓦斯化学株式会社 | Refine the manufacturing method and manufacture system of aqueous hydrogen peroxide solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090916 |