http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2014107703-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20431 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20426 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20415 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20484 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20447 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2252-20457 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1468 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-74 |
| filingDate | 2012-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2014107703-A |
| titleOfInvention | AMINOPYRIDINE DERIVATIVES FOR REMOVING HYDROGEN SULPHIDE FROM A GAS MIXTURE |
| abstract | 1. The compound of 1-hydroxyethyl-4-pyridinylpiperazine of the general formula: wherein R, R, R and R are all hydrogen. A compound according to claim 1, contained in an aqueous absorbent solution, wherein the 1-hydroxyethyl-4-pyridinylpiperazine compound is present in an amount of from 0.1 to 60 percent by weight of the aqueous absorbent solution. A method for removing hydrogen sulfide from a hydrogen sulfide containing stream, comprising the step of contacting the liquid stream with an aqueous absorbent composition containing a 1-hydroxyethyl-4-pyridinylpiperazine compound of the general formula, wherein R, R, R and R each independently represent hydrogen, an alkyl group, - (O-CH-CH) -OH, where n is an integer from 0 to 8, -CH- (O-CH-CH) -OH, where n is an integer from 0 to 8, a hydroxyalkyl group, an aminoalkyl group, where nitrogen can be part of a 5- or 6-membered cycle, an alkylene group containing a quaternary ammonium, carboxylic acid and / or its salt, or sulfonic acid and / or its salt. 4. The method of claim 3, wherein R, R, R, and R all represent hydrogen. A method according to claim 3 or 4, wherein the aqueous absorbent composition comprises from 0.1 to 60 weight percent of 1-hydroxyethyl-4-pyridinylpiperazine compound, wherein the weight percent is based on the weight of the aqueous absorbent composition. The method of claim 5, further comprising from 0.1 to 95 weight percent of one or more amino compounds, wherein the weight percent is based on the weight of the aqueous absorbent composition. The method of claim 5, wherein the one or more amino compounds are monoethanolamine, diethanolamine, methylethanolamine, monoisopropanolamine, diisopropanolamine, 2-hydroxyethylpiperazine, piperazine, 1-methylpiperazine, 2-methylpiperazine, 2- (2-aminoethoxy) |
| priorityDate | 2011-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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