Epoxypropane purifying method
A technology of propylene oxide and purification method, applied in the direction of organic chemistry and the like, can solve the problems of low yield of propylene oxide and large loss of extractant, and achieve the effect of high extraction efficiency and good technical effect.
Active Publication Date: 2014-10-22
CHINA PETROLEUM & CHEM CORP +1
9 Cites 35 Cited by
AI-Extracted Technical Summary
Problems solved by technology
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreAbstract
The invention relates to an epoxypropane purifying method. The problems of low epoxypropane yield and large extractant loss due to the entrainment of epoxypropane and an extractant in the material flow from the top of an extraction distillation tower in the prior art are mainly solved. The method comprises the following steps: 1, a crude epoxypropane solution enters the extraction distillation tower to obtain a material flow 2 at the tower top and a material flow 3 at the tower bottom; 2, the material flow 3 enters a solvent recovery tower to obtain an epoxypropane product at the tower top and an extractant flow 5 at the tower bottom, and the flow 5 is divided into a flow 6 and a flow 7; 3, the material flow 2 is condensed, and the condensed flow 2 enters a phase splitter and undergoes oil and water separation to obtain an oil layer 8 and a water layer 9; 4, the oil layer 8 and the flow 6 return to the top of the extraction distillation tower; and 5, the flow 7 enters the lower portion of a water washing tower and the water layer 9 enters the upper portion of the water washing tower to obtain wastewater flow at the tower bottom and a flow 11 at the tower top, and the flow 11 enters the phase splitter. The method well solves the problems and can be used in the industrial production of epoxypropane purification.
Application Domain
Technology Topic
Image
Examples
- Experimental program(2)
Example Embodiment
Example Embodiment
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Similar technology patents
Automatic extraction method for case semantic elements
InactiveCN107894981AImprove extraction efficiencyReduce manpower extraction costsSemantic analysisSpecial data processing applicationsGerundCorrelation analysis
Owner:武汉烽火普天信息技术有限公司
Novel process for high-effective extraction of carotenoid in Blakeslea trispora
InactiveCN103012230AImprove dissolution rateImprove extraction efficiencyHydrocarbon purification/separationHydrocarbonsBiomassChemistry
Owner:INNOBIO CORP LTD
Preparation method of aroma substance in Zimbabwe tobacco extractive as well as products and application of aroma substance
ActiveCN103436363AImprove extraction efficiencyReduce energy consumptionTobacco preparationEssential-oils/perfumesSolventEthyl ester
Owner:HUABAO FLAVOURS & FRAGRANCES CO LTD
Oily sludge recycling and treatment method
InactiveCN107253813AImprove extraction efficiencyAvoid separation and recycling inefficientWaste water treatment from quariesSludge treatmentChemistryUltrasonic oscillation
Owner:湖南云平环保科技有限公司
ZnO nanosphere-based GaN-based light emitting diode surface roughening method
InactiveCN101740702AEasy to sizeImprove extraction efficiencySemiconductor devicesSol-gelOhmic contact
Owner:HC SEMITEK CORP
Classification and recommendation of technical efficacy words
- Improve extraction efficiency
- Good technical effect
Nitride semiconductor light emitting element
ActiveUS20100163901A1High densityImprove extraction efficiencySemiconductor/solid-state device manufacturingSemiconductor devicesNitride semiconductors
Owner:SHARP KK
Cannabis sailve extract rich in cannabidiol and preparation method of cannabis sailve extract
ActiveCN105535111AImprove extraction efficiencyHigh in CBDPlant ingredientsActivated carbonChemistry
Owner:山西汉麻生物科技有限公司
Production process of dipping agent bitumen
ActiveCN101289625AImprove extraction efficiencyReduce manufacturing costWorking-up pitch/asphalt/bitumen by selective extractionSurface treatment compositionsSolventChemistry
Owner:山西宏特煤化工有限公司
Method of preparing Grosvenor momordica extract and application thereof
ActiveCN101444333AImprove extraction efficiencyEnhance aftertaste and sweetnessTobacco preparationTobacco treatmentSolventChemistry
Owner:广州华芳烟用香精有限公司