http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NZ-502968-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-34 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C219-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F17D1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F15D1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C219-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F17D1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F17D1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B37-06 |
| filingDate | 1998-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79615acd504477d3187608e211eb5b0d |
| publicationDate | 2002-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | NZ-502968-A |
| titleOfInvention | Method and substituted di-isopropanol ammonium bromides for inhibiting the plugging of conduits by gas hydrates |
| abstract | A method for inhibiting the plugging of a conduit, the conduit containing a mixture comprising an amount of hydrocarbons having from one to eight carbon atoms and an amount of water wherein the amounts of hydrocarbons and water could form hydrates at conduit temperatures and pressures. The method comprising the steps of: (a) adding to the mixture an amount of a hydrate formation inhibitor component of formula (R1)(R2)(R3)(R4)A+Y- (I) wherein two of R1-R4 are independently normal or branched alkyls having 4 or 5 carbon atoms, two of R1-R4 independently represent organic moieties having at least 8 carbon atoms, A represents a nitrogen or phosphorus atom, and Y represents an anion characterized in that at least one of R1-R4 represents a -(CH2-CHR5-O)p-(CH2)q-(CHR6-CH2)r-(CH2-CHR7)s-(CHR8)t-O-C(O)-R9 moiety wherein R5-R8 each independently represent a hydrogen atom or a C1-C4 alkyl group and at least one of R6-R8 is not a hydrogen atom; p represents 0 or an integer of up to 50; q, r, s and t are independently 0, 1 or 2 and together at least 1 and not more than 4 and wherein when q represents 1 or 2 the sum of r, s, and t is at least 1 and, wherein when t and the sum of q, r, s and t represent 2, R8 does not represent a methyl group; and R9 represents an (cyclo)alkyl, alkenyl, aryl, arylalkyl, arylalkenyl, alkylaryl or alkenylaryl group having at least a carbon chain of 6 atoms, the amount of hydrate formation inhibitor component being effective to inhibit formation of hydrates in the mixture at conduit temperatures and pressures, (b) flowing the mixture containing the hydrate formation inhibitor component through the conduit. |
| priorityDate | 1997-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.