CN1218796A - Process for refining amino-undecylic acid - Google Patents
Process for refining amino-undecylic acid Download PDFInfo
- Publication number
- CN1218796A CN1218796A CN 97123237 CN97123237A CN1218796A CN 1218796 A CN1218796 A CN 1218796A CN 97123237 CN97123237 CN 97123237 CN 97123237 A CN97123237 A CN 97123237A CN 1218796 A CN1218796 A CN 1218796A
- Authority
- CN
- China
- Prior art keywords
- deionized water
- slurry
- cooling
- temperature
- filtration
- 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.)
- Granted
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In the refining process, amino-undecylic acid produced through ammonilysis is treated through the processes of pulping, mixing with certain amount of deionized water while stirring and heating, cooling, filtration, filter cake pulping, water washing at normal temperature, refiltration to no existence of Br-ion, drying and packaging. Compared with traditional refining process, it has lowered refining temperature and raised product yield.
Description
The present invention relates to a kind of method of refining amino-undecylic acid.Aminoundecanoic acid is a kind of organism commonly used, and the refining of it is an important topic of chemical field.The object of the present invention is to provide a kind of making method easy, the new process of production that product purity is high.It relatively has following advantage with process for purification in the past:
1, extraction temperature decreases, and is beneficial to polyreaction.
2, the product recovery rate improves 5～10%.
The object of the present invention is achieved like this (the combined process schema elaborates):
(1) changes slurry in the accompanying drawing, ammonia is separated the aminoundecanoic acid that obtains and changed slurry in changing stock tank A1.
(2) gained liquid among the A1 is squeezed among the washing still B1, stirred and heat up, stir with 5～10 times deionized water E1, heating simultaneously stops heating when being warming up to 80～100 ℃.
(3) Plate Filtration when treating that resultant is cooled to 25～30 ℃ among the B1, carries out Plate Filtration by plate-and-frame filter press C.
(4) filtering filter cake is changed slurry in changing stock tank A2.
(5) will change liquid behind the slurry squeezes among the washing still B2 that is furnished with certain ionized water E2 and carries out normal-temperature water, washes.
(6) go the press filtration packing, the liquid after the washing is refiltered, filtrate is used AgNO
3The liquid check is to there not being Br
-Till, dry packing.
Claims (4)
1, a kind of method of refining amino-undecylic acid.It is with ammonia separate that the aminoundecanoic acid that obtains wash through changing slurry, stirring, intensification, cooling, filtration, normal temperature, refilters, checked, drying, packaging process, it is characterized in that:
(1) changing liquid behind the slurry squeezes in the washing still and deionized water and stirring, heat temperature raising simultaneously.
(2) Plate Filtration is carried out by plate-and-frame filter press in the cooling back.
(3) squeeze into the washing still behind the filter cake slurry and carry out the normal temperature washing.
(4) refilter, use AgNO
3Liquid check filtrate does not have Br
-Till.
(5) go the pressure-filteration drying packing.
2, (1) described deionized water ratio is an aminoundecanoic acid in the claim 1: water=1: (5～10), the material temperature rise is 80～100 ℃.
3, (2) described cooling temperature is 25～30 ℃ in the claim 1.
4, (3) are stated the deionized water ratio and are in the claim 1: aminoundecanoic acid: water=1: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97123237 CN1078585C (en) | 1997-12-04 | 1997-12-04 | Process for refining amino-undecylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97123237 CN1078585C (en) | 1997-12-04 | 1997-12-04 | Process for refining amino-undecylic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1218796A true CN1218796A (en) | 1999-06-09 |
| CN1078585C CN1078585C (en) | 2002-01-30 |
Family
ID=5177021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97123237 Expired - Fee Related CN1078585C (en) | 1997-12-04 | 1997-12-04 | Process for refining amino-undecylic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078585C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448850A (en) * | 2022-09-19 | 2022-12-09 | 中国五环工程有限公司 | Process system and method for preparing 11-aminoundecanoic acid from 11-bromoundecanoic acid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3111634B1 (en) | 2020-06-18 | 2022-06-24 | Arkema France | Process for the manufacture of aminoundecanoic acid and aminodecanoic acid |
-
1997
- 1997-12-04 CN CN 97123237 patent/CN1078585C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448850A (en) * | 2022-09-19 | 2022-12-09 | 中国五环工程有限公司 | Process system and method for preparing 11-aminoundecanoic acid from 11-bromoundecanoic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1078585C (en) | 2002-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323614B (en) | Acidum folicum production method without sewerage discharge | |
| CN105084600A (en) | Method for efficiently treating salt-containing organic wastewater and application of method | |
| CN102134260A (en) | Method for preparing phytic acid | |
| CN102028179B (en) | Method for refining gourmet powder mother liquor | |
| CN103979705A (en) | Method for recovering potassium nitrate from anthraquinone dye alkali wastewater | |
| CN109503424A (en) | N- cyanoethyl-Phenhenzamine production equipment and method | |
| CN114195836A (en) | Method for extracting hesperidin | |
| CN1218796A (en) | Process for refining amino-undecylic acid | |
| CN1128813C (en) | Pectin producing method | |
| CN1272306C (en) | Technique for producing gallic acid by direct acid hydrolysis of gallnut | |
| CN109851127A (en) | A kind of processing method of large red-based g spent acid | |
| CN1026232C (en) | Process for preparing 2-hydroxy-3-naphthoic acid with 99% concentration | |
| CN1202463A (en) | Process for high-yield synthesis of high content vanadylic sulfate | |
| CN111393280A (en) | Decanedioic acid decoloring method | |
| CN220574195U (en) | Continuous washing device for battery-level ferric phosphate | |
| CN113104865B (en) | Treatment method of vat blue RSN refining mother liquor | |
| CN115260787B (en) | Method for synthesizing dispersed orange 44 by one-pot method | |
| CN115501821B (en) | Aminopyrine hydrogenation unit | |
| CN208757002U (en) | A kind of crystallizer of high-purity quercetin | |
| CN1047492A (en) | Cyclohexanehexol-producing technology | |
| CN1189488A (en) | Method for preparing cystine coproduced non-salt compound amino-acid | |
| CN1070836C (en) | Water separation method for preparing sodium ferulate and sterol using ferulaic acid or ferulate | |
| CN1056830C (en) | Technology for producing leucine | |
| CN112552354A (en) | Method for preparing geniposide and gardenia blue from gardenia yellow pigment waste liquid | |
| CN1075135A (en) | A kind of method of producing inositol with catalyst at normal pressure |
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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |