http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3990074-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7fde8ba8cefd74c7a5f40f32c3535800 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C1-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C1-10 |
| filingDate | 1989-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cdcf9a33593d559b2ecf4a77677fc19c |
| publicationDate | 2000-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3990074-C2 |
| titleOfInvention | Process for the pretreatment of cellulose raw material |
| abstract | The invention relates to a method and a device for pretreating cellulose-like or pulp raw material in pulp form by impregnation. In this method, a first vacuum treatment is carried out without a previous moistening treatment and as soon as possible afterwards the vacuum treatment penetration is carried out with a solution of chemicals or with water at atmospheric or a higher solution pressure. In this way, the fiber cavities can be optimally filled, which considerably favors a uniform and adequate diffusion of the solution into the fiber walls. The method can be carried out, for example, in a device which has a tank (11) for the treatment of the raw material and therein a feed opening (18) for the solution and an opening (14) for the removal of the raw material, this opening (14) is advantageously connected to the receiving tank in which the atmospheric or a higher pressure prevails. |
| priorityDate | 1988-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.