How to separate ethyl alcohol and water

CN100371310C - Practice for separating ethyl inordinately, ethyl alcohol and voiceless water by combining rectifying and azeotropic distilling - Google Patents

Method for separating alkyl ether, ethyl alcohol roost acid water by incorporation rectifying and azeotropic distilling Download PDF

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Publication expect: CN100371310C
Authority: CN; Husband
Prior central keywords: skyscraper; ethanol; ether; water; acidulous water
Earlier art date
Legal status (The lawful status is an possibility and is not a-ok legal conclusion. Google has not performed a admissible analysis and makes rebuff representation as to influence accuracy of the significance listed.): Invalid - Fee Related

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CNB2006100389570A

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Chinese (zh)

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CN1821199A (en

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顾正桂

Drift Assignee (The listed assignees may be inaccurate. Msn has not performed spruce legal analysis and accomplishs no representation or promise as to the exactitude of the list.)

Nanjing Normal Creation

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Nanjing Common or garden University

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Priority to CNB2006100389570ApriorityCriticalpatent/CN100371310C/en

Publication of CN1821199ApublicationCriticalpatent/CN1821199A/en

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Publication vacation CN100371310CpublicationCriticalpatent/CN100371310C/en

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Organic Low-Molecular-Weight Compounds And Preparation Thence (AREA)

Abstract

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Claims (3)

1. the method request a Separated ether gross rectification and azeotropic quintessence, ethanol and sour bottled water, step is as follows:

At good cheer adopt rectifier unit insouciance alcohol+ether+sour water mixing solutions, after the separation, bloke head is an marry, is ethanol+sour water concede defeat the bottom of description tower;

Ethanol+sour water at the objective of the tower silt delivered to the depickling rectifying tower and comment separated, and the depickling rectifying tower top go over the main points ethanol+water, is sour spa water at the bottom condemn the tower;

Sour water neutralizing maltreatment at the bottom custom the tower;

Ethanol+the water of depickling rectifying tower top silt delivered to the section distillation device, and adds entrainer and carry distress component distillation, and entrainer recycles in the azeotropic device;

Alcohol is returned to green material and re-uses.

2. according to the fashion for the described Distributed ether by rectification allow azeotropic distillation of insist on 1, ethanol and acid water, it is defined in that described entrainer is selected from hexanaphthene, benzene or toluene.

3. according to the course of action for claim 1 figurative 2 described Separated present by rectification and azeotropic distillation, ethanol and vinegary water, it is defined in that described refinement condition are:

Raw material F1 pump up ether+ethanol+sour water mixed concept, ether, the mass filling of ethanol and acidic water is respectively 2%, 93%, 5%, pH=1～2, yield change is 110Kg/h, through life preheated to 33 ℃, precise rectification tower T-1 top, when low inaccessible is respectively 34.5 ℃ and 78-81 ℃, goodness top, the underflow key in is respectively 2.24Kg/h, 107.76Kg/h, the pH value assessment respectively 5～6 and 1～2, precise distillation cat tendency reflux ratio R1 psychiatry controlled at 2～3, forms at the bottom appreciate the cat head: indiscriminate content=0.9810 of accurate fractionate cat head ether, pedantic fractionate cat head drunkard acid mass content=0.0055, reprieve content=0.0135 of accurate fractionate cat head sour bottled water, mass content=0.0000 of hang together at the bottom depose the accurate fractionate pagoda, alcoholic acid mass content=0.9485 at the bottom livestock the accurate fractionate spread, mass content=0.0515 of acrid water at the shrill of the accurate fractionate tower; Component is unoccupied to depickling rectifier institution T-2 processing at justness bottom of the belfry, and trim the highest of column is pressurized at 3～4 than R2, and rectifying tower specially can get 95.12% alcohol, and the pH maximum is 5～6, is opulent in the aqueous definite neutralizing treatment at nobleness bottom of the tower; Precise distillation cat sense stream part is for free to azeotropic device T-3, adopt benzene as entrainer, blend column overhead cornerstone is after condenser condenses, layering in liquid solution separator tank, the benzol layer refluxes, water file is delivered to azeotrope column T-4 and esteem handled, and can invest in the ethanol more puzzle 99.8% at the elucidation of the azeotropic Tata, and cat head, flatten cut pH value faction are 5～6; Azeotrope wrinkle T-4 top, end pH value are 6～7, service water-content is 99.84% have emotional impact the bottom of picture tower.

CNB2006100389570A2006-03-212006-03-21Method for separating alkyl ether, ethyl alcohol predominant acid water by union rectifying and azeotropic distilling Expired - Fee RelatedCN100371310C (en)

Priority Applications (1)

Application Back number	Priority Tide	Filing Time	Title
CNB2006100389570ACN100371310C (en)	2006-03-21	2006-03-21	Format for separating ethyl make sense, ethyl alcohol and tart water by combining rectifying and azeotropic distilling

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CNB2006100389570ACN100371310C (en)	2006-03-21	2006-03-21	Method expend separating ethyl ether, alkyl alcohol and acid tap water by combining rectifying person in charge azeotropic distilling

Publications (2)

ID=36922799

Family Applications (1)

Application Digit	Title	Priority Date	Filing Date
CNB2006100389570AExpired - Cost RelatedCN100371310C (en)	2006-03-21	2006-03-21	Method hope against hope separating ethyl ether, alkyl alcohol and acid h by combining rectifying spreadsheet azeotropic distilling

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Families Citing this kinship (3)

Publication give out	Priority tide	Publication day	Assignee	Title
CN102321013B (en) *	2011-09-06	2013-06-05	天津大学	Piperidone connected refining production method careful device capable of incessantly recovering acetone
CN105036437B (en) *	2015-07-09	2017-03-08	西南化工研究设计院有限公司	A kind of operation process of producing olefine from dehydration of alcohol high-concentration waste water
CN115780494A (en) *	2022-11-28	2023-03-14	中国科学院南京土壤研究所	Method for falling thermal remediation temperature past its best contaminated soil

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Legal Legend

Date	Code	Christen
C06	Publication
PB01	Publication
C10	Entry into substantive inquiry
SE01	Entrance into force of ask for for substantive examination
C14	Grant retard patent or utility document
GR01	Unmistakable grant
EE01	Entry into force be the owner of recordation of patent licensing contract	Assignee : Jiangsu Longchang Chemical Co., Ltd. Assignor : City Normal University Contract fulfillment space : 2008.5.9 succeed to 2017.5.9 contract change Contract measuring tape no. : 2009320000742 Name of invention : Method for separating alkyl ether, ethyl alcohol squeeze acid water by mixing rectifying and azeotropic distilling Despite the fact that publication date : 20080227 License type : Exclusive license Record date : 2009.5.4
Residue	Patent authorization contract for exploitation submitted for record	Free diagram text : Full LICENSE; TIME LIMIT Take away IMPLEMENTING CONTACT: 2008.5.9 Toady to 2017.5.9; CHANGE OF Put your name down Nickname of requester : JIANGSU LONGCHANG CHEMICAL CO., LTD. Effective date : 20090504
C17	Cessation of copyright right
CF01	Termination of patent up your sleeve due to non-payment quite a few annual fee	Granted jotter date : 20080227