http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2656047-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ec1fe17d3c7da4cc7c5812389d0096d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C3-04 |
| filingDate | 2017-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0240e42539ee03694c45523bc8888729 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ce53a9e4188e2768c099f86a72e0f3d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df3b79b0062d42eebc733754e42e5d30 |
| publicationDate | 2018-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2656047-C1 |
| titleOfInvention | Method of obtaining iron oxide pigments |
| abstract | FIELD: chemistry. n SUBSTANCE: invention can be used for the coloring of plastics, in the production of colored concrete, tiles, ceramics, pottery and porcelain. Method for the preparation of iron oxide pigments involves the preparation of a precipitate of iron (II) hydroxide by alkalization with ammonia to pH 9.0–9.2 of a solution containing iron (II) sulfate ions. Resulting precipitate is separated by filtration, and thermal oxidation is carried out at a temperature of 400–1,000 °C to obtain the pigment of the desired color. Oxidation of the filtrate with air oxygen to pH 4.1–4.7 is carried out to obtain a yellow pigment of iron (III). Yellow pigment is separated by filtration and dried at a temperature of no higher than 120 °C. Filtering processes are intensified by ultrasound at a frequency of 35 kHz in the precavitation mode. n EFFECT: invention makes it possible to obtain iron oxide pigments of a wide color range and additionally a fertilizer from the filtrates. n 1 cl, 8 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2701939-C1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2700071-C1 |
| priorityDate | 2017-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.