| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3c593fef54c7d53687c16789c59da79c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b274a2103f689a0fa05cd6a7da67a0bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7cdbe679264abb6ffaeebeae8098c9c5 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G29-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G53-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G29-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G27-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10G27-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-20 |
| filingDate |
2019-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d00b4e41cb2bc6e78fb5960848a4dd1d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3157f03424c75b204a74817a4ffac18d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73bd211635134761d3cf96d9e587e4b3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39bad05ea2d7a2bea2100375ce2d4057 |
| publicationDate |
2020-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2020031036-A1 |
| titleOfInvention |
Recycle of acid sludge residual in hydrocarbon refining process |
| abstract |
This invention relates to the recycling of acid sludge which is byproduct of hydrocarbons treatment by sulfuric acid; this byproduct contains 5% to 85% sulfuric acid and 1% to 15% water and 5% to 20% of organic materials which are very miscible to each other. The invention provides an improved process for recycling of said acid sludge and converting it to fertilizer and bitumen's additive. In this process malodor and some dangerous compounds such as hydrogen sulfide and sulfur oxides are reduced or eliminated by bubbling air into sludge in temperature range 25 to 105 Celsius. Then by adding controlled amount of water and certain neutralizing agent to said sludge, two immiscible phases are formed which could separate quickly and completely. Lower phase contains soluble sulfate salt which is useful and vital for agriculture and upper phase contains organic sulfur compound which is applicable to the bitumen industry. |
| priorityDate |
2018-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |