| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e2c6257038843ffdf42c15203106c15c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79cbb9f87b30f4e71aae70684a99180e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-063
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-501
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-42 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F5-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C11-06 |
| filingDate |
1978-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56e452e8a50053ab495e90dbcf2fb753
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60f95218f5cae4c4a2eddb34fba85113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2219e407ff509c49fc6c07e93819405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f52b47378348a8df28f5e2089b25264
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b3a7e7b7d07ff1cd4f081a99e1a98e1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9021c40a5723947a99567cd3f1bd09a4 |
| publicationDate |
1985-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CS-237301-B2 |
| titleOfInvention |
Method of regaining of hydrogen magnesium sulphite from waste gas in combustion of sulphite waste liquor |
| abstract |
The absorption of SO2 in the gas occurs in at least one magnesium sulphite (MS) stage and at least one magnesium bisulphite (MBS) stage. More MS is made than is required for the prodn. of bisulphite, and the excess (E) is removed as MS from the MBS system. Excess (E) corresponds with the difference of the amt. of S in the thick lye and the total bonded S in the tower acid. The MS removed is pref. employed for mfg. H2SO4; or is cracked by heating to obtain MgO recycled to the MBS stage and SO2 fed into the purified bisulphite soln. The MS is pref. cracked at 500-900 degrees C., possibly using some heat from the lye boiler. The MS is pref. dried before craking, which pref. occurs in a stream of SO2, and the resulting SO2 is pref. liquefied. Used in the prodn. of cellulose, using a completely closed circuit for the chemicals, and to produce a digestion acid contg. any desired amt. of SO2 in soln. |
| priorityDate |
1977-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |