http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2707771-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e32772b2df4936e48c12e903c5904d7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A44C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B28-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B29-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C30B7-105 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A44C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B29-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B28-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B7-10 |
| filingDate | 2018-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_652a0b33fc132c5a5dbfa2ae10e31564 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f488e0ecd59ab7b3a8e6b5191ee2d7a6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1c9fc9717ca4794c587e722bd30e390 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7034367fb96c069cebe91e82140d466 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f435f920135ed02913e772452640100 |
| publicationDate | 2019-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2707771-C1 |
| titleOfInvention | Method of growing crystals of quartz or amethyst or amethyst druses by a hydrothermal method of temperature drop in aqueous solutions of ammonium fluoride |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to production of quartz mono- and polycrystals for synthesis of optical and piezoelectric monocrystals of quartz, including those doped with germanium, for radioelectronic, optoelectronic and acoustoelectronic equipment, and for production of colored monocrystals and druses for use in stone cutting and jewelery. Crystal growing of quartz or amethyst or amethyst druses is carried out by hydrothermal method of temperature drop in aqueous solutions of ammonium fluoride on seeds, at that, potassium fluoride in amount of 10–40 g per liter of water solution of ammonium fluoride is additionally added to initial solution. Growth of monocrystals of colorless quartz is carried out on monocrystalline quartz primers parallel to faces of trigonal prism x{11-20} and trigonal pyramid s{11-21}. Growth of amethyst monocrystals is carried out on monocrystalline quartz primers parallel to the vertex of trigonal pyramid s{11-21}. Cultivation of amethyst druses is carried out on seeds of polycrystalline quartz with isolated aggregates of different crystallographic direction cut out of natural vein quartz.EFFECT: due to use of solutions of ammonium fluoride with addition of potassium fluoride it is possible to reduce duration of growing process till 2–3 months due to increase of growth rate of crystals in 2–3,5 times at simultaneous preservation of their high quality.7 cl, 1 tbl, 14 ex |
| priorityDate | 2018-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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