| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46613cf20b9340df3bf890e37bdf7b8b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_de4654e2f7dfc15e064f500ed619e0b5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2d7464b077f25e4843a7662f65e75f02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fa82a9eeb1ef3a09d119fc571f1aa5c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7a676759693759bcee2f1ce26e6ba709
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e28ce150a5f4ad1fe7f258339acded49
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c8b8abf4e6d506a2c70bb9cc32c61ff4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05D1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-02 |
| filingDate |
2005-12-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a3286f42673826a4ea362eeba328555
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2498cc67809e3ee3cfa95fd8467d8cdd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d75e205fd3bbd24a19fb7c674b4732d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d31451f9fd96f6d6ceee5ffb0e95a42e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca624e69117dc9a8c04b9acc93a7ea87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_220026b2342a15b8a7eaabf29062059e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e94a77ce359ccc6939c095862f09f20 |
| publicationDate |
2010-10-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2010266482-A1 |
| titleOfInvention |
Process for the Time Recovery of Sulphate of Potash (SOP) From Sulphate Rich Bittern |
| abstract |
The present invention relates to a process for the recovery of sulphate of potash (SOP) from bittern. Kainite is obtained by fractional crystallization of the bittern. Kainite is converted into schoenite with simultaneous removal of NaCl and the filtrate (SEL) is used for production of KCl. Schoenite is reacted with aqueous KCl to yield SOP and the filtrate (KEL) is recycled in the kainite to schoenite conversion step. The production of KCl from SEL is carried out with the aid of dipicrylamine (DPA). Lime is treated with DPA in water for the production of highly soluble Ca (DPA)2, which in turn treated with SEL to produce insoluble K(DPA). K(DPA) is treated with HCl to produce KCl and insoluble DPA, which can be recycled for the production of Ca (DPA)2. The aqueous KCl thus obtained is treated with schoenite to prepare SOP. The KEL obtained along with SOP is recycled to generate schoenite. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10046302-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2610064-C2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2625246-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115304083-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015016607-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015225250-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9517943-B2 |
| priorityDate |
2005-11-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |