| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c4b6ec17e9440a96685a0eba1cb11920
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_27a51449fddb800935e2d500ad40aeac |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-722
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-365
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-108
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-722
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-76 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 |
| filingDate |
2020-08-05^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a117c72477b5b71a7213edeae0c6642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_310d6b404a98557a33050f55ba4b40f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e539ef98df7615179343449c41f452f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e57161bc70346a644a114a092cb64fc0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d13e3faff9485e917869b949bd87044
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05e2d414f024ec4d3d931ed53eb12581
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0118f60c49564e01f99b26763d7c6cb |
| publicationDate |
2022-07-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022227650-A1 |
| titleOfInvention |
Integrated boron removal and flocculation process for treating fracturing wastewater |
| abstract |
An integrated boron removal and flocculation process for treating fracturing wastewater is disclosed. The process comprises: adjusting the pH of the fracturing flowback liquid to be treated to become alkaline and adding thereto an oxidant to carry out a reaction for a certain time period, so that the state of the boron present in the liquid is changed; and then adding a barium salt to the resulting reaction mixture to carry out a further reaction between the barium salt and the boron in the changed state to produce a precipitate. The stability of the flowback liquid is deteriorated by the addition of the oxidant. Suspended solids in the flowback liquid can be removed through adsorption, wrapping, and then settling by the action of the precipitate (a barium salt). The process integrates boron removal and flocculation and enables a boron removal rate of 80% or greater. The contents of the suspended solids and oil present in the fracturing flowback liquid after filtration each can be lowered to less than 5.0 mg/L. |
| priorityDate |
2019-08-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |