http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1386290-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18c5d76f75de35db54fd859e12dcb61b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G1-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B13-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J2-08 |
| filingDate | 1972-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1386290-A |
| titleOfInvention | Manufacture of microglobules |
| abstract | 1386290 Preparation of microspheres REACTOR CENTRUM NEDERLAND (STICHTING) 25 Aug 1972 [26 Aug 1971] 39822/72 Heading ClA Microspheres are prepared by spraying droplets of a water-containing inorganic phase, optionally containing carbon, on to a waterimmiscible organic phase having a viscosity of not less than 0À5 c.p. and containing a surfaceactive agent at a temperature of 50-150‹ C. and then separating, washing and optionally drying and sintering the particles formed. The surface-active agent may be a sorbitan mono- or tri-oleate, or a mixture of polyoxyethylene sorbitol fatty acid ester and alkyl aryl sulphonate and be present in an amount between 0À04- 2-0% by vol. The organic liquid may have a viscosity up to 8À5 cp., and be paraffin or a C 12 alkyl benzene. The inorganic phase may contain NH 3 or an ammonia releasing agent, e.g. urea, hexamethylene tetramine, acetamide, ammonium carbamate and/or ammonium cyanate. The inorganic phase may be a SiO 2 sol, a metal hydroxide sol, a solution of a metal salt and/or an anion deficient solution of a metal salt, e.g. a uranyl nitrate solution with a NO 3 <SP>1</SP>/U ratio of 1À5-1À6. The inorganic phase may contain the metal cations Fe<SP>2+</SP>, Fe<SP>3+</SP>, Al<SP>3+</SP>, Be<SP>2+</SP>, (ZrO)<SP>2+</SP>, (TiO)<SP>2+</SP>, (HfO)<SP>2+</SP>, Sc<SP>3+</SP>, Y<SP>3+</SP>, R.E.<SP>3+</SP>, U<SP>4+</SP>, (UO)<SP>2+</SP>, Th<SP>4+</SP>, Pu<SP>4+</SP>, (PUO 2 )<SP>2+</SP> and/or an actinide metal having an atomic number higher than Pu, and the anions Ce<SP>1</SP>, NO 3 <SP>1</SP>, SO 4 <SP>11</SP>, formate or acetate. The spheres may be washed with NH 3 solution, dried and sintered in an atmosphere of H 2 and N 3 at 1300‹ C. UO 2 microspheres having a diameter of 5-250 Á can be prepared. Reference has been directed by the Comptroller to Specification 1,302,682. |
| priorityDate | 1971-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.