http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111060478-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_213eef487791048d4735593fa5e481a2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-41 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-41 |
| filingDate | 2020-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73e4d9b35de953d3bdcfe85c623a18bd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05d567bcd7f95c5146b0da2bfcdd5d40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30b0c24eba3d417b1a455ba39be41783 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48fd2f4793a97be1bcd7bf2d9ddf0e70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02cf25c81e8c48a42ee5c92479196225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_911decd4b24f8d219851a99ee09c5258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_578b27cbbb98a6563006e270b5019978 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfc31c62a6f10e0fe38527c8586eefb1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7167a6566620ea7a6ad5396c3d10b3c4 |
| publicationDate | 2020-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111060478-A |
| titleOfInvention | Method and device for automatically monitoring content of acetic anhydride |
| abstract | The invention belongs to the field of crude acetic anhydride production, and particularly relates to a method and a device for automatically monitoring the content of acetic anhydride. The method is characterized by comprising the steps of S1, measuring the refractive index n of the mixture in the circulating pipeline by using an online refractometer; s2, the controller judges whether the mixture refractive index n is between a first threshold value n1 and a second threshold value n2, adjusts the size of the feeding adjusting valve, and controls the discharge valve to output the mixture at proper time. The device comprises a material supplementing adjusting valve, a discharge valve, an online refractometer and a controller, wherein the online refractometer is arranged on a bypass branched by a mixture circulating pipeline, and the controller is electrically connected with the material supplementing adjusting valve, the discharge valve and the online refractometer respectively. The method can measure the concentration of acetic anhydride in the circulating pipeline in real time, and the controller can automatically adjust the supply amount of glacial acetic acid according to the concentration, so that the working efficiency is high. The device can be realized without great transformation, and the economic benefit is obvious. |
| priorityDate | 2020-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.