| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d06ad30793d6defe821062c5adf72c7e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8e06d3f214ceff7f8ac56ffc83f5926
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e712b128db1051b66ff78a6f74b5ca68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd9e5ce2c758f763d4b703d744142f85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ebfa354d2d40b1b65059feac14cfbf3a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315f4cab4a909f7ed60e8ba707321f31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d300c3560208da7a441a891fae7cca09 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D63-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0096
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D63-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-54 |
| filingDate |
1997-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7450e25f0e228a64645d3025cca58448
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e2203d7e91f8c186630238e13a1c0eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7162ef7cc1b7d5dd4914e8db9c329789
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_843306ecf304289c60040fc214302ca5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_722e39f604ff64f017ecf4cad90ce28a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62182b4facfada98825f55e584f0544d |
| publicationDate |
1998-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9835746-A1 |
| titleOfInvention |
Method and apparatus for purifying water-insoluble compounds |
| abstract |
The process comprises the steps of continuously recirculating a fluid aqueous suspension of the water-insoluble particles between a filtration system (2) and a suspension reservoir (1); continously conducting ultrafiltration of the recirculating suspension at the filtration system (2) to separate an aqueous permeate (X) containing the water-soluble impurities from the recirculating fluid aqueous suspension; continuously discharging the permeate (X) generated by ultrafiltration; adding water (Y) to the recirculating fluid aqueous suspension undergoing ultrafiltration at approximately the same volumetric rate per hour as permeate is being discharged; monitoring the purity of the recirculating fluid aqueous suspension; and recovering the purified fluid aqueous suspension after the recirculating fluid aqueous suspension has reached a predetermined purity condition. An apparatus is also disclosed for carrying out the above process. Preferred water-insoluble particles may include lakes (particles with absorbed dye) and particles used to make lakes such as finely divided aluminum hydrate. Advantages of this invention include the ability to consistently produce high purity water-insoluble particles at low cost and with savings in manual labor. Purification according to this invention requires substantially less water than prior art methods, reducing purified water consumption and waste product disposal costs. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1292379-B1 |
| priorityDate |
1997-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |