http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5332514-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_90e7136bc810b844502b21de846a8a71 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M159-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M159-24 |
| filingDate | 1990-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0d6c8c5581f32e46d753b44c8e17045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7efd45602c0abad010ff58af00af6b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a49d7329239e3370e4064586c8534191 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1468e891223486e623b81ca0db3dc74c |
| publicationDate | 1994-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5332514-A |
| titleOfInvention | Continuous process for preparing overbased salts |
| abstract | A continuous method of preparing an overbased calcium sulfonate which comprises repeating the following steps until a desired TBN is obtained, said method comprising: (a) contacting Ca (OH) 2 and methanol with a normal calcium sulfonate hydrocarbon solution to solubilize at least a portion of the Ca(OH) 2 ; (b) filtering the sulfonate solution to separate and remove the non-solubilized Ca(OH) 2 from the solubilized Ca(OH) 2 contained in an obtained sulfonate filtrate; (c) treating said sulfonate filtrate with gaseous CO 2 to convert the solubilized CA(OH) 2 to solubilized CaCO 3 ; (d) blowing said solubilized CaCO 3 with an inert gas to remove therefrom any excess CO 2 and the aqueous phase generated therein to obtain an overbased sulfonate liquid; (e) adding more of said normal calcium sulfonate solution to said overbased sulfonate liquid and contacting said overbased sulfonate liquid with said non-solubilized Ca(OH) 2 and additional fresh Ca(OH) 2 to obtain an overbased sulfonate liquid product; (f) repeating steps (b) through (e) until the desired TBN of the sulfonate liquid product is obtained, and removing an amount of sulfonate liquid product after step (d) equal to the additions of normal calcium sulfonate and Ca(OH) 2 in step (e); and (g) stripping the methanol and hydrocarbon solvent from the sulfonate liquid removed after step (d) to obtain the overbased calcium sulfonate product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109762632-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6790813-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1113019-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109762632-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1113019-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004102336-A1 |
| priorityDate | 1990-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.