http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113929847-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcc05bfb169cc12f49dc78807c6f666e http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50d6a89a0b3c7b2ea9f0144a059a4573 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0c4e7b1e049f00b667acc5d0f87984ae |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G14-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G14-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-035 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G14-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G14-073 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035 |
| filingDate | 2020-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ffec20f50d90aadce98da0b9e5e22ab0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d66489409be77586fbe4b5779445beb0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e1ddaeac6c854b8806f1b46d3d21be8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41f29874a17fdeade447dca311cc4fd7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ff5f04c998e1a1f0363f9210a8df088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1e42bcf589597956431f84fe2ae7edd |
| publicationDate | 2022-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113929847-A |
| titleOfInvention | Resin salt-resistant high-temperature-resistant filtrate reducer based on chemical modification, and preparation method and application thereof |
| abstract | The invention belongs to the technical field of oil field exploitation drilling treatment agents, and provides a resin salt-resistant high-temperature-resistant filtrate reducer based on chemical modification, a preparation method and an application thereof, wherein the preparation method comprises the following steps: s1, carrying out polymerization reaction on sulfanilic acid, phenol and paraformaldehyde to obtain an oligomerization product; s2, reacting the enzymatic hydrolysis lignin with bisulfite and the oligomerization products in an alkaline environment to obtain the resin salt-resistant high-temperature-resistant filtrate reducer. The invention adopts sulfanilic acid, enzymatic hydrolysis lignin and the like to carry out chemical modification on phenolic resin molecules, increases adsorption groups, sulfonic groups and other hydration groups in the molecules, and can effectively improve the salt resistance and temperature resistance of the phenolic resin filtrate reducer. In addition, the synthetic raw materials used in the invention are green, have wide sources and high cost performance, and the obtained product has good biodegradability and excellent environmental protection performance. |
| priorityDate | 2020-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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