专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JPS62123135A METHOD FOR SEPARATION MONOCYCLIC HYDROCARBON 失效
公开(公告)号：JPS62123135A
公开(公告)日：1987-06-04
申请号：JP26228885
申请日：1985-11-21
申请人： SUMITOMO CHEMICAL CO
发明人： MORI YOSHIHIDE , MORIYA OSAMU
IPC分类号： C07C7/08 , C07C1/00 , C07C13/02 , C07C15/02 , C07C67/00
摘要： PURPOSE:In producing a saturated monocyclic hydrocarbon or an unsaturated monocyclic hydrocarbon, by subjecting a mixture consisting of at least two of the saturated monocyclic hydrocarbon, the unsaturated monocyclic hydrocar bon and an aromatic monocyclic hydrocarbon to extractive distillation, to use a phosphoric acid triester as an extraction solvent. CONSTITUTION:To separate a saturated monocyclic hydrocarbon or an unsaturated monocyclic hydrocarbon from a mixture comprising at least two of the saturated monocyclic hydrocarbon, the unsaturated monocyclic hydrocarbon and an aromatic monocyclic hydrocarbon by extractive distillation, a phosphoric acid triester (preferably trimethyl phosphate) is used as an extraction solvent and a molar ratio of the triester to the mixture of the monocyclic hydrocarbons is about 1-5. Use of the phosphoric triester as a mixture of it with at least one of N-methylpyrrolidone, dimethylacetamide, dimethyl phthalate, etc., provides further improved separating effects. USE:An intermediate for raw material of industrial chemicals.

42. 发明专利

JPS6261934A SEPARATION OF PARAFFINIC AND OLEFINIC C4 HYDROCARBON 失效
公开(公告)号：JPS6261934A
公开(公告)日：1987-03-18
申请号：JP21182386
申请日：1986-09-10
申请人： KRUPP KOPPERS GMBH
发明人： GERUHARUTO PUROISAA , MARUCHIN SHIYURUTSUE , GERUTO EMURIHI
IPC分类号： C07C1/00 , C07C7/08 , C07C9/10 , C07C11/08 , C07C67/00
摘要： 1. A process for the separation of paraffinic and olefinic C4 hydrocarbons by extractive distillation using morpholine as the selective solvent, the olefins together with the solvent being taken off from the bottom of the extractive distillation column and being separated from the solvent in a downstream stripping column, characterized in that the extractive distillation is carried out without an addition of water to the solvent and the vapours arising at the top of the stripping column on stripping of the solvent are condensed by normal water cooling or air cooling without the use of a compressor and without the use of a refrigerant circulation.

43. 发明专利

JPS6256442A PURIFICATION OF NAPHTHALENE 失效
公开(公告)号：JPS6256442A
公开(公告)日：1987-03-12
申请号：JP19668785
申请日：1985-09-05
申请人： SUMIKIN COKE CO LTD
发明人： KAGEYAMA KENJI , TAKEYA SHOJI , NAKAMURA TAKENORI
IPC分类号： C07C7/08 , C07C1/00 , C07C7/06 , C07C15/04 , C07C15/24 , C07C67/00
摘要： PURPOSE:To obtain naphthalene completely free from organic sulfur compound easily in high yield, by distilling crude naphthalene added with mono ethanolamine, collecting the fraction having a distillation temperature of lower than the boiling point of said amine, cooling the fraction and separating the precipitated crystal. CONSTITUTION:Crude naphthalene, especially a coal tar-based crude naphthalene is added with monoethanolamine and distilled, and the fraction having a distillation temperature of lower than the boiling point of said amine, preferably a fraction having a boiling point of about 171 deg.C under normal temperature and pressure condition is collected. The fraction is cooled and the precipitated naphthalene is separated to obtain sufficiently refined naphthalene useful as a raw material of pharmaceuticals, dyes or various organic syntheses with simple procedure in high yield and efficiency. The organic sulfur compound such as thionaphthene inhibiting the naphthalene derivative synthesis reaction and lowering the quality of the product can be removed completely from naphthalene by this process. The amount of the amine is preferably >=4 times mol (>=2 times wt) of naphthalene.

44. 发明专利

JPS627174B2 失效
公开(公告)号：JPS627174B2
公开(公告)日：1987-02-16
申请号：JP2714178
申请日：1978-03-08
申请人： ANSUCHI* FURANSE DEYU PETOROORU
发明人： HOORU MIKITENKO , RIONERU ASURINOO
IPC分类号： C07C1/00 , C07C7/08 , C07C15/04 , C07C15/06 , C07C67/00

45. 发明专利

JPS6152126B2 失效
公开(公告)号：JPS6152126B2
公开(公告)日：1986-11-12
申请号：JP12949080
申请日：1980-09-18
申请人： JAPAN SYNTHETIC RUBBER CO LTD
发明人： ARAKAWA MASATOSHI , OKUMURA TARO , NAKAZAWA KAZUMI
IPC分类号： C07C7/08 , C07C1/00 , C07C11/12 , C07C11/167 , C07C11/18 , C07C67/00

46. 发明专利

JPS6150929B2 失效
公开(公告)号：JPS6150929B2
公开(公告)日：1986-11-06
申请号：JP15923279
申请日：1979-12-10
申请人： NIPPON ZEON CO
发明人： HOKARI HIROSHI , HAYAMA SHINZO
IPC分类号： B01D3/40 , B01D3/32 , C07C1/00 , C07C7/08 , C07C11/00 , C07C11/12 , C07C11/167 , C07C11/18 , C07C67/00

47. 发明专利

JPS6052686B2 失效
公开(公告)号：JPS6052686B2
公开(公告)日：1985-11-20
申请号：JP2468577
申请日：1977-03-07
申请人： JAPAN SYNTHETIC RUBBER CO LTD
发明人： YAMAUCHI HARUO , OKUMURA TARO , TAKETOMI YASUNORI , ARAKAWA MASATOSHI
IPC分类号： B01D3/40 , C07C1/00 , C07C7/08 , C07C9/00 , C07C11/00 , C07C11/167 , C07C67/00

48. 发明专利

JPS60208932A SEPARATION OF AROMATICS FROM HYDROCARBON MIXTURE 失效
公开(公告)号：JPS60208932A
公开(公告)日：1985-10-21
申请号：JP4847985
申请日：1985-03-13
申请人： KRUPP KOPPERS GMBH
发明人： GERUHARUTO PUROISAA , MARIN SHIYURUTSUE
IPC分类号： C07C1/00 , C07C7/08 , C07C15/00 , C07C15/02 , C07C67/00 , C10G7/08 , C10G21/20 , C10G21/28

49. 发明专利

JPS6061541A PURIFICATION OF HYDROCARBON 失效
公开(公告)号：JPS6061541A
公开(公告)日：1985-04-09
申请号：JP16975083
申请日：1983-09-14
申请人： JAPAN SYNTHETIC RUBBER CO LTD
发明人： SHIKINO SEIICHIROU , HIRAI SHIGEO , OKUMURA TAROU , AOYAMA MASUTOSHI
IPC分类号： C07C7/08 , C07C1/00 , C07C9/00 , C07C11/02 , C07C67/00
摘要： PURPOSE:In separating a conjugated diolefin from a hydrocarbon mixture by extractive distillation, to remove a dimer of the compound, by blending part of the hydrocarbon mixture from which the compound is removed with part of a solvent containing the dimer of the compound, and water, allowing the blend to stand. CONSTITUTION:A gaseous C5 fraction is sent from the conduit 1 to the first extractive distillation column 2, an extraction solvent is fed from the conduit 3 to it. As a conjegated diolefin comprising mainly vapor-phase isoprene is being absorbed, it is made to flow downward. The solvent having absorbed the diolefin is sent from the conduit 4 to the second extractive distillation column 6, the solvent is added from the conduit 8 to it, extractive distillation is carried out, and isoprene is obtained from the conduit 9. A solvent containing a dimer of the conjugated diolefin is taken out from the pipe 7, part of the solvent and part of a fraction from the pipe 5, from which the diolefin is removed, are stirred by the conduit 7, sent to the separating tank 18, allowed to stand, the dimer is transferred to the phase of C5 fraction, and the solvent is recycled by the pipe 19. EFFECT:A dimer of conjugated diolefin can be removed without requiring a large facility and a large amount of energy.

50. 发明专利

JPS58164525A SEPARATION OF MONOCYCLIC ALIPHATIC MONOENE 失效
公开(公告)号：JPS58164525A
公开(公告)日：1983-09-29
申请号：JP4762882
申请日：1982-03-25
申请人： ASAHI CHEMICAL IND
发明人： MITSUI OSAMU , FUKUOKA YOUHEI
IPC分类号： C07C7/08 , C07C1/00 , C07C13/02 , C07C67/00
摘要： PURPOSE:To obtain a monocyclic monoene (contained component) in high selectivity ratio and efficiently, by subjecting a mixture consisting of a monocyclic paraffin, monocyclic polyene, monocyclic aromatic hydrocarbon, and monocyclic monoene to extractive distillation using a sulfone compound as an extractant. CONSTITUTION:A mixture consisting of a monocycic paraffin (e.g., cyclohexane, etc.), monocyclic polayene (e.g., cyclohexadiene, etc.), monocyclic aromatic hydrocarbon (e.g., benzene, etc.) and monocyclic monoene (e.g., cyclohexene, etc.) is distilled so that the monocyclc monoene (contained component) is separated and prepared. In the distillaton, extractive distillation is carried out using a sulfone compound (e.g., sulfolane, sulfolene, dimethyl-sulfone, etc.). The mixture is obtained by dehydration reaction of monocyclic paraffin. When the extractant is used, specific volatility of cyclohexane to cyclohexene and that of cyclohexene to benzene are raised and separaton is carried out extremely easily.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式