http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01317118-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9db020c0c080a31ec3fd5f8585747314 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F11-182 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F11-18 |
| filingDate | 1988-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be804ee4637c9e16db653ecbf11cf2e8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a411299107f19f7cd1ec6be9294a98a6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6b4b59871f4f5adfb3e49b9e7b106ee http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd594e3f831eeb9c27db565f0953139b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7b0254d29aec82e130013bbc86b7109 |
| publicationDate | 1989-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01317118-A |
| titleOfInvention | Production of calcium carbonate |
| abstract | PURPOSE: To improve the dispersibility of the subject compound by introducing CO 2 into lime milk under specific condition, adding condensed phosphoric acid (alkali metal salt) to the milk and carbonating the lime. n CONSTITUTION: (A) Lime milk having a Ca(OH) 2 concentration of 3-25g/100ml is produced by mixing (a) quick lime or slaked lime with (b) water. (B) CO 2 is introduced into the component A maintained at ≤25°C, preferably 10-17°C until ≥5wt.% of Ca(OH) 2 in the component A is carbonated while preventing the lowering of the pH of the component A to a level lower than the pH level before the introduction of the component B by essentially ≥0.2. The carbonation reaction is performed at ≤45°C to a carbonation ratio of 60-75%. The reaction product is added with (C) ≥1x10 -4 mol of condensed phosphoric acid (alkali metal salt) (e.g. sodium hexametaphosphate) based on 1mol of Ca(OH) 2 in the component A and carbonated to a carbonation ratio of 100% at ≥10°C to obtain CaCO 3 powder having an average particle diameter of ≥1μm and an aspect ratio of ≤3. n COPYRIGHT: (C)1989,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108017080-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6312659-B1 |
| priorityDate | 1988-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.