http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2377276-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-4075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-207 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-4006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-1033 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-203 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G2300-202 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-1905 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-1895 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L10-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G75-02 |
| filingDate | 2005-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cee00d10adf0fdd0fd7bd5df09aecbc5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_358dfc4e687168179fe5ac9b66bc7b27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98bdc82a411388991384d009035303e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_027567db1fcaed9ec24d6bbd542bce98 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9701db673bc1ed5753ed7aa930accd9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b335c88319aa9f3b9bab86e691ea2c52 |
| publicationDate | 2009-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2377276-C2 |
| titleOfInvention | High-temperature corrosion inhibitor |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to a method of inhibiting corrosion in oil refining processes, and is particularly aimed at inhibiting corrosion caused by naphthenic acids. The invention relates to a method of inhibiting corrosion of inner metal surfaces of equipment used in refining crude oil or high-temperature distillates, which are heated to temperature between approximately 350°F and approximately 790°F. The method involves mixing crude oil or high-temperature oil distillate with a corrosion inhibiting amount of corrosion inhibitor, which is selected from a group from (I) and (II) and their mixtures, where the said corrosion inhibitor (I) has formula: in which W, X, Y and Z are all present and can be identical or different and are separately selected from a group consisting of (OH), (COOH) and COOR 1 , under the condition that, adjacent pairs of W, X, Y and Z can be selected from ; R 1 is an alky group with approximately 1 to approximately 16 carbon atoms; and Ar is an aromatic compound; and the said corrosion inhibitor (II) has formula: , in which R 2 and R 3 are COOR 5 , or under the condition that, when one of R 2 and R 3 is or , then the other is either or , sufficient for formation of an anhydride group which links functional groups R 2 and R 3 ; each R 5 is independently selected from alkyl groups with approximately 1 to approximately 16 carbon atoms; R 4 is COOR 6 , where R 6 is an alkyl group with approximately 1 to approximately 16 carbon atoms; when refining crude oil or high-temperature distillates obtained from the crude oil at high temperature, containing (I) tetrafunctional substituted aromatic compounds and (II) trimellitic acid anhydride ethers. n EFFECT: effective reduction of corrosion of metal surfaces when in contact with high-temperature crude oil. n 10 cl, 6 ex |
| priorityDate | 2004-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.