CN107298643A - A kind of method of purification of polynary alcohol production byproduct sodium formate - Google Patents
A kind of method of purification of polynary alcohol production byproduct sodium formate Download PDFInfo
- Publication number
- CN107298643A CN107298643A CN201710517698.8A CN201710517698A CN107298643A CN 107298643 A CN107298643 A CN 107298643A CN 201710517698 A CN201710517698 A CN 201710517698A CN 107298643 A CN107298643 A CN 107298643A
- Authority
- CN
- China
- Prior art keywords
- sodium formate
- cooling tower
- air
- alcohol production
- purification
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Abstract
The invention discloses a kind of method of purification of polynary alcohol production byproduct sodium formate, first pass through that heating is evaporated by polyalcohol therein, then the sodium formate for removing polyalcohol is passed through into misting cooling, it is final to obtain refined sodium formate.The advantage of the invention is that first heated fully evaporate polyalcohol, then sodium formate is refined again.The technique of the present invention is good for the separating-purifying effect of sodium formate.
Description
Technical field
It is particularly a kind of many present invention relates to a kind of method of purification of the byproduct sodium formate in chemical products production process
The method of purification of first alcohol production byproduct sodium formate.
Background technology
Manufacture polyalcohol, such as neopentyl glycol, pentaerythrite, the larger amount of sodium formate of trimethylolpropane by-product, by-product
Organic matter in sodium formate containing boiling points such as pentaerythrite, neopentyl glycol or trimethylolpropanes less than 300 DEG C.Due to polynary
Alcohol byproduct sodium formate Yield comparison is big, not disposable previously because substantial amounts of sodium formate value is low, there is some production enterprises
Industry is directly discharged, and serious pollution is caused to environment, in recent years, and the purification of many enterprises and R＆D institution to sodium formate is returned
Receipts have carried out research.
Polyalcohol production plant is to the conventional processing mode of polyalcohol mother liquor at present：It is concentrated, crystallization, centrifuge,
Obtain sodium formate solid.But often polyalcohol is difficult to be totally separated out from sodium formate, and formic acid is present in the form of impurity
In sodium product, the quality of sodium formate product is not only influenceed, the polyalcohol of high value is wasted again.Therefore, develop a kind of more preferable
Sodium formate method of purification seems more important.
The content of the invention
The purpose of the present invention is to disclose a kind of method of purification of polynary alcohol production byproduct sodium formate.
The technical scheme is that：
The byproduct sodium formate that polynary alcohol production is produced, by Electromagnetic Heating, 260 ~ 320 DEG C of temperature of control makes therein organic
Thing, such as pentaerythrite, neopentyl glycol or trimethylolpropane are evaporated with gaseous state, and the gas volatilized is passed through by air-introduced machine
Cross water cooling tower spraying cooling and circulate, be cooled to after normal temperature, insoluble gas is emptied into chimney, coolant reaches full through circulation
With it is rear reclaim organic matter therein, separating-purifying after can be sold as product, isolate the sodium formate after organic matter again through pump
In the atomizer for squeezing into spray cooling tower top, there be cyclone separator and air-introduced machine in cooling tower top, and cooling tower bottom has
Air blower, melting sodium formate in the presence of cyclone separator and air-introduced machine and air blower, be cooled to by 300 DEG C 50 DEG C with
Under, and form graininess sodium formate, that is, obtain refined sodium formate.
The present invention uses Electromagnetic Heating first, and the byproduct sodium formate that polynary alcohol production is produced is heated into suitable temperature
Degree, enables polyalcohol fully to evaporate, then again by misting cooling, by the sodium formate of molten condition be cooled to 50 DEG C with
Under, obtain refined sodium formate.The technique of the present invention is good for the separating-purifying effect of sodium formate.
Embodiment
The byproduct sodium formate that polynary alcohol production is produced, by Electromagnetic Heating, 260 ~ 320 DEG C of temperature of control makes therein
Organic matter, such as pentaerythrite, neopentyl glycol or trimethylolpropane are evaporated with gaseous state, and the gas volatilized is by air inducing
Machine is by water cooling tower spraying cooling and circulates, and is cooled to after normal temperature, and insoluble gas is emptied into chimney, and coolant reaches through circulation
Being reclaimed after to saturation can sell after organic matter therein, separating-purifying as product, isolate the sodium formate after organic matter again
In the atomizer that spray cooling tower top is squeezed into through pump, there be cyclone separator and air-introduced machine, cooling tower bottom in cooling tower top
There is air blower in portion, and melting sodium formate is cooled to 50 DEG C in the presence of cyclone separator and air-introduced machine and air blower by 300 DEG C
Hereinafter, graininess sodium formate is formed, that is, obtains refined sodium formate.
Claims (1)
1. a kind of method of purification of polynary alcohol production byproduct sodium formate, it is characterised in that the byproduct for producing polynary alcohol production
Sodium formate, by Electromagnetic Heating, 260 ~ 320 DEG C of temperature of control makes organic matter therein, such as pentaerythrite, neopentyl glycol or three
Hydroxymethyl-propane etc. is evaporated with gaseous state, and the gas volatilized is passed through water cooling tower spraying cooling by air-introduced machine and circulated,
It is cooled to after normal temperature, insoluble gas is emptied into chimney, coolant reclaims organic matter therein after reaching saturation through circulation, and separation is carried
It can be sold after pure as product, isolate the atomizer that the sodium formate after organic matter squeezes into spray cooling tower top through pump again
Interior, there be cyclone separator and air-introduced machine in cooling tower top, and cooling tower bottom has air blower, and melting sodium formate is in cyclone separator
In the presence of air-introduced machine and air blower, less than 50 DEG C are cooled to by 300 DEG C, and forms graininess sodium formate, that is, obtains essence
Sodium formate processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517698.8A CN107298643A (en) | 2017-06-29 | 2017-06-29 | A kind of method of purification of polynary alcohol production byproduct sodium formate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517698.8A CN107298643A (en) | 2017-06-29 | 2017-06-29 | A kind of method of purification of polynary alcohol production byproduct sodium formate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107298643A true CN107298643A (en) | 2017-10-27 |
Family
ID=60136082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710517698.8A Pending CN107298643A (en) | 2017-06-29 | 2017-06-29 | A kind of method of purification of polynary alcohol production byproduct sodium formate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107298643A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166482A (en) * | 1997-05-22 | 1997-12-03 | 李安民 | Sodium oxalate producing process and equipment through double-circulation continuous dehydrogenation in triphase fluid bed |
| CN101698639A (en) * | 2009-11-03 | 2010-04-28 | 中国海洋石油总公司 | Method for recycling sodium formate products from coarse sodium formate of byproduct of polyhydric alcohol |
| CN102701909A (en) * | 2012-06-21 | 2012-10-03 | 衡阳师范学院 | Method for recovering pentaerythritol from byproduct sodium formate of pentaerythritol |
| CN203047609U (en) * | 2012-12-03 | 2013-07-10 | 南通市康桥油脂有限公司 | Product granulating and packing device |
| CN206027626U (en) * | 2016-07-02 | 2017-03-22 | 南通凯赛生化工程设备有限公司 | Fused spray cooling prilling tower of high temperature |
-
2017
- 2017-06-29 CN CN201710517698.8A patent/CN107298643A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166482A (en) * | 1997-05-22 | 1997-12-03 | 李安民 | Sodium oxalate producing process and equipment through double-circulation continuous dehydrogenation in triphase fluid bed |
| CN101698639A (en) * | 2009-11-03 | 2010-04-28 | 中国海洋石油总公司 | Method for recycling sodium formate products from coarse sodium formate of byproduct of polyhydric alcohol |
| CN102701909A (en) * | 2012-06-21 | 2012-10-03 | 衡阳师范学院 | Method for recovering pentaerythritol from byproduct sodium formate of pentaerythritol |
| CN203047609U (en) * | 2012-12-03 | 2013-07-10 | 南通市康桥油脂有限公司 | Product granulating and packing device |
| CN206027626U (en) * | 2016-07-02 | 2017-03-22 | 南通凯赛生化工程设备有限公司 | Fused spray cooling prilling tower of high temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104311383B (en) | A kind of method of the hydrogen chloride production monochloro methane that utilizes by-product in tetrachloro-ethylene production process | |
| CA2859705A1 (en) | Polycarboxylic acid extraction | |
| CN104230660B (en) | A kind of preparation method of 95 grades of tetramethylolmethanes | |
| CN107522631A (en) | A kind of preparation method of occrycetin | |
| CN105016373A (en) | Method for producing copper chloride through waste etching liquid containing copper | |
| CN101333177B (en) | Process for producing taurine drying and sterilizing by microwave and high-efficiency ebullition | |
| CN101759150B (en) | Method for drying hydrogen chloride gas | |
| CN106397180B (en) | Aspirin raffinate treatment process | |
| CN107298643A (en) | A kind of method of purification of polynary alcohol production byproduct sodium formate | |
| CN109735724A (en) | The method for preparing 6N high purity indium is once evaporated in vacuo | |
| CN106632532A (en) | Recycling method for trichloroethane in production process of sucralose | |
| CN104129811A (en) | Process for preparing zinc sulfate | |
| CN102452645B (en) | Process for recovering furfural and sulfuric acid from furfural residues | |
| CN103922532B (en) | Imidazolidine tail washings treatment process | |
| CN103303883B (en) | A kind of production technique of phosphorus oxychloride | |
| CN107445804A (en) | A kind of high-purity pyrogallol production method | |
| CN106745287A (en) | A kind of preparation method of high-pure anhydrous manganese chloride | |
| CN105731536A (en) | Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater | |
| CN103172040A (en) | Production method of high-purity potassium dihydrogen phosphate | |
| CN102530902B (en) | Industrialized continuous potassium dihydrogen phosphate production method | |
| CN102181070B (en) | Circulating evaporation process for cellulose ether producing solvent | |
| CN104671570A (en) | Method for treating aluminum-containing wastewater in preparation process of 6-oxo-8-chloro ethyl caprylate | |
| CN108746649A (en) | Produce the inline process of different size shot | |
| CN213475433U (en) | Potassium nitrate production system | |
| CN204447367U (en) | Glycerol distillation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171027 |