METHOD FOR REMOVING AMINE
For the removal of amines from their aqueous solutions, in particular effluents from cellulose processing, - the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines, - the charged cati...
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| creator | DEIITAA AIHINGAA SHIYUTEFUAN ASUTETSUGAA DEIITOMAA KORUGAA HAINRIHI FUIRUGO |
| description | For the removal of amines from their aqueous solutions, in particular effluents from cellulose processing,
- the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines,
- the charged cationic exchanger is treated with an aqueous solution of an acid having a pKa value greater than 3.0 in order to elute the amines, and - the eluate is processed by distillation, a part of the weak acid being separated from the amines and being recovered if desired.
The process according to the invention allows a simple and inexpensive disposal of amine-containing effluents. |
| format | Patent |
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- the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines,
- the charged cationic exchanger is treated with an aqueous solution of an acid having a pKa value greater than 3.0 in order to elute the amines, and - the eluate is processed by distillation, a part of the weak acid being separated from the amines and being recovered if desired.
The process according to the invention allows a simple and inexpensive disposal of amine-containing effluents.</description><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>1991</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910208&DB=EPODOC&CC=JP&NR=H0330892A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910208&DB=EPODOC&CC=JP&NR=H0330892A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DEIITAA AIHINGAA</creatorcontrib><creatorcontrib>SHIYUTEFUAN ASUTETSUGAA</creatorcontrib><creatorcontrib>DEIITOMAA KORUGAA</creatorcontrib><creatorcontrib>HAINRIHI FUIRUGO</creatorcontrib><title>METHOD FOR REMOVING AMINE</title><description>For the removal of amines from their aqueous solutions, in particular effluents from cellulose processing,
- the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines,
- the charged cationic exchanger is treated with an aqueous solution of an acid having a pKa value greater than 3.0 in order to elute the amines, and - the eluate is processed by distillation, a part of the weak acid being separated from the amines and being recovered if desired.
The process according to the invention allows a simple and inexpensive disposal of amine-containing effluents.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJD0dQ3x8HdRcPMPUghy9fUP8_RzV3D09fRz5WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8V4BHgbGxgYWlkaOxkQoAQDQdR-r</recordid><startdate>19910208</startdate><enddate>19910208</enddate><creator>DEIITAA AIHINGAA</creator><creator>SHIYUTEFUAN ASUTETSUGAA</creator><creator>DEIITOMAA KORUGAA</creator><creator>HAINRIHI FUIRUGO</creator><scope>EVB</scope></search><sort><creationdate>19910208</creationdate><title>METHOD FOR REMOVING AMINE</title><author>DEIITAA AIHINGAA ; SHIYUTEFUAN ASUTETSUGAA ; DEIITOMAA KORUGAA ; HAINRIHI FUIRUGO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0330892A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1991</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>DEIITAA AIHINGAA</creatorcontrib><creatorcontrib>SHIYUTEFUAN ASUTETSUGAA</creatorcontrib><creatorcontrib>DEIITOMAA KORUGAA</creatorcontrib><creatorcontrib>HAINRIHI FUIRUGO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DEIITAA AIHINGAA</au><au>SHIYUTEFUAN ASUTETSUGAA</au><au>DEIITOMAA KORUGAA</au><au>HAINRIHI FUIRUGO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR REMOVING AMINE</title><date>1991-02-08</date><risdate>1991</risdate><abstract>For the removal of amines from their aqueous solutions, in particular effluents from cellulose processing,
- the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines,
- the charged cationic exchanger is treated with an aqueous solution of an acid having a pKa value greater than 3.0 in order to elute the amines, and - the eluate is processed by distillation, a part of the weak acid being separated from the amines and being recovered if desired.
The process according to the invention allows a simple and inexpensive disposal of amine-containing effluents.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | METHOD FOR REMOVING AMINE |
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