Title:
高粘度基油及び高粘度基油の製造方法
Document Type and Number:
Japanese Patent JP4943522
Kind Code:
B2
Abstract:
A novel process for the production of an extract useful as a process oil and a raffinate useful as a high-viscosity base oil by solvent refining is provided, characterized in that reduced pressure distillation is effected under the condition that the end point of distillate is 580 DEG C or higher as calculated in terms of atmospheric pressure or the initial boiling point of the residue is 450 DEG C or higher as calculated in terms of atmospheric pressure, the resulting residual oil is deasphalted under the condition that the carbon residue content in the deasphalted oil reached 1.6% or less, and the resulting deasphalted oil is subjected to solvent refining under the condition that the yield of extract is from 35% to 60%. It is a novel and economically excellent process for the preparation of a rubber process oil having a high safety, a high penetrating power with respect to rubber polymer and the content of PCA extract of less than 3%.
Inventors:
Morishima Kinyuki
Kenji Fujino
Kenji Fujino
Application Number:
JP2010027273A
Publication Date:
May 30, 2012
Filing Date:
February 10, 2010
Export Citation:
Assignee:
jx Nikko Nisseki Energy Co., Ltd.
International Classes:
C10G21/00; C10G7/00; C10G53/06; C10M101/02
Domestic Patent References:
| JP57100190A | ||||
| JP200080208A | ||||
| JP7501346A | ||||
| JP54116005A |
Foreign References:
| GB2257156A |
Attorney, Agent or Firm:
Masami Sakai
Norio Kagami
Norio Kagami