公开(公告)号：US3665044A

公开(公告)日：1972-05-23

申请号：US3665044D

申请日：1970-05-01

Applicant: SUN OIL CO

Inventor： SCOTT KENNETH A

IPC: C07C7/152 ,  C07C7/00

CPC classification number: C07C7/152 ,  C07C15/24

Abstract: Mixtures of C12 bicyclic aromatic hydrocarbons containing dimethylnaphthalenes are difficult to fractionate by conventional techniques such as distillation or crystallization. However, by dissolving 2-chloro, 4-nitrobenzoic acid in such a mixture at an elevated temperature, followed by subsequent cooling, a solid complex of said acid and certain hydrocarbons is formed. Separation of the solid complex from the cooled mixture and its subsequent decomposition results in a product that is substantially richer in those dimethylnaphthalenes which have greater tendency to form such complexes. Upon further processing, these dimethylnaphthalenes have utility in the production of dyes.

公开(公告)号：US3546320A

公开(公告)日：1970-12-08

申请号：US3546320D

申请日：1968-03-25

Applicant: SUN OIL CO

Inventor： DULING IRL N ,  STEARNS RICHARD S ,  SCOTT KENNETH A

IPC: C08L67/02 ,  C08G39/10

CPC classification number: C08L67/02 ,  C08L2666/18

公开(公告)号：US3594436A

公开(公告)日：1971-07-20

申请号：US3594436D

申请日：1969-02-03

Applicant: SUN OIL CO

Inventor： HEDGE JOHN A ,  SCOTT KENNETH A

IPC: C07C5/11 ,  C07C5/367 ,  C07C7/14 ,  C07C15/24

CPC classification number: C07C15/24 ,  C07C5/11 ,  C07C5/367 ,  C07C7/14 ,  C07C2521/04 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/46 ,  C07C2602/10 ,  C07C13/48

Abstract: ESSENTIALLY ALL OF THE 2,6-DIMETHYLNAPHTHALENE (DMN) CONTAINED IN THE 2,6-/2,7-DIMETHYLNAPHTHALENE EUTECTIC MIXTURE CAN BE RECOVERED BY HYDROGENATING THE EUTECTIC MIXTURE TO PRODUCE A MIXTURE OF 2,6- AND 2,7-DIMETHYLTETRALIN (DMT). THE 2,6/2,7-DMT ALSO FORMS A EUTECTIC, HOWEVER, IT IS AT A DIFFERENT RATIO THAN THE 2,6/2,7-DMN. THE SHIFT IS IN FAVOR OF GREATER 2,7-DMT IN THE EUTECTIC THUS THERE IS FREE 2,6-DMT THAT CAN BE RECOVERED FROM THIS MIXTURE. 2,6-DMT CAN BE RECOVERED IN HIGH YIELDS AND HIGH PURITY BY CAREFULLY CONTROLLING THE TEMPERATURE OF CRYSTALLIZATION AT THE LOWEST TEMPERATURE DETERMINED FROM FIG. 3 AT WHICH ALL OF THE 2,6-/2,7-DMT EUTECTIC IS SOLUBLE IN THE LIQUIDS PRESENT. FOR EXAMPLE, A HYDROGENATED 2,6-/2,7-DMN EUTECTIC FEED CONTAINING

WT. PERCENT 2,6-DMT 30 2,7-DMT 30 OTHER LIQUID AROMATICS 40

WILL HAVE A EUTECTIC OF 2,6-/2,7-DMT IN THE WEIGHT RATIO OF .538. THUS, THE EUTECTIC REPRESENTS 46.2% OF THE INCOMING FEED. TO USE FIG. 3, THE WEIGHT PERCENT OF EUTECTIC IS CALCULATED ON TOTAL FEED EXCLUDING THE FREE 2,6-DMT IN THIS CASE THE WEIGHT PERCENT OF EUTECTIC TO BE DISSOLVED IS CALCULATED TO BE 53.6 WT. PERCENT. FROM FIG .3, 53.66 WT. PERCENT EUTECTIC IS SOLUBLE AT -51*C. THE TEMPERATURE OF CRYSTALLIZATION SHOULD BE NO LESS THAN -51*C. ($2*C.) TO AVOID CRYSTALLIZATION OF THE 2,6-/2,7-DMT EUTECTIC AND NO MORE THAN -51*C. ($2*C.) TO AVOID DISSOLVING FREE 2,6-DMT.

公开(公告)号：US3485885A

公开(公告)日：1969-12-23

申请号：US3485885D

申请日：1968-04-22

Applicant: SUN OIL CO

Inventor： PETERKIN MELVIN E ,  SCOTT KENNETH A

IPC: C07C7/14

CPC classification number: C07C7/14 ,  C07C15/24

公开(公告)号：US3681387A

公开(公告)日：1972-08-01

申请号：US3681387D

申请日：1970-10-16

Applicant: SUN OIL CO

Inventor： HOLLSTEIN ELMER J ,  SCOTT KENNETH A

IPC: C07D201/02 ,  C07D201/08 ,  C07D27/08

CPC classification number: C07D201/02 ,  C07D201/08

Abstract: An improved process for preparing 2-pyrrolidinone at relatively low pressures which comprises reduction of succinimide in an aqueous system at temperatures of about 225* to 275* C., at a pressure in the range of about 1,200 to 1,500 p.s.i.g. and in the presence of a supported palladium catalyst.

Abstract translation: 一种用于在相对低的压力下制备2-吡咯烷酮的改进方法，其包括在约225-275℃的温度下在水性体系中还原琥珀酰亚胺，压力范围为约1,200至1,500p.s.i。 并在负载型钯催化剂存在下进行。

公开(公告)号：US3665045A

公开(公告)日：1972-05-23

申请号：US3665045D

申请日：1970-05-01

Applicant: SUN OIL CO

Inventor： DAVIS RONALD I ,  SCOTT KENNETH A

IPC: C07C7/152 ,  C07C7/00

CPC classification number: C07C7/152 ,  C07C15/24

Abstract: Binary eutectics of dimethylnapthalenes having each methyl group at a Beta position cannot be fractionated by crystallization and are difficult to fractionate by distillation. However, by dissolving the normally solid eutectic in an inert solvent and contacting the resulting solution with a dianhydride of 1,2,4,5,benzenetetracarboxylic acid or a dianhydride of 1,2,3,4benzenetetracarboxylic acid, a solid complex is formed. Separation of the solid complex and its subsequent decomposition results in a complexate that is substantially richer in a dimethylnapthalene which is preferentially complexed. Dimethylnaphthalenes are oxidized to naphthalenecarboxylic acids which are used in the production of dyes and pigments.

公开(公告)号：US3665043A

公开(公告)日：1972-05-23

申请号：US3665043D

申请日：1970-05-01

Applicant: SUN OIL CO

Inventor： DAVIS RONALD I ,  SCOTT KENNETH A

IPC: C07C7/152 ,  C07C7/00

CPC classification number: C07C7/152 ,  C07C15/24

Abstract: Mixtures of C12 bicyclic aromatic hydrocarbons containing dimethylnaphthalenes are difficult to fractionate by conventional techniques such as distillation or crystallization. However, by contacting such mixtures with the dianhydride of 1,2,4,5benzenetetracarboxylic acid, the dianhydride of 1,2,3,4benzenetetracarboxylic acid or the trianhydride of 1,2,3,4,5,6,benzenehexacarboxylic acid, a solid complex of certain hydrocarbons and the polyanhydride is formed. Separation of the solid complex and its subsequent decomposition results in a complexate that is substantially richer in those dimethylnaphthalenes which are preferentially complexed. Upon further processing these dimethylnaphthalenes have utility in the production of dyes.

公开(公告)号：US3574550A

公开(公告)日：1971-04-13

申请号：US3574550D

申请日：1968-10-18

Applicant: SUN OIL CO

Inventor： SCOTT KENNETH A ,  BEAN ROGER M

IPC: G01N23/222 ,  G01N33/28 ,  G01V5/02 ,  C10M1/54 ,  G01N33/24 ,  G21H5/00

CPC classification number: G01V5/02 ,  G01N23/222 ,  G01N33/2882 ,  G01N2223/074 ,  G01N2223/636 ,  Y10T137/0318 ,  Y10T436/13

Abstract: A METHOD OF IDENTIFYING PETROLEUM COMPOUNDS BY ADDING THERETO MINUTE QUANTITIES OF METALLIC PHTHALOCYANINES, COMPLEXES OF ASPHALTENES AND METALS, OR MIXTURES OF SAME AND DETERMINING THE PRESENCE OF SAID ADDED COMPONENTS BY NEUTRON ACTIVATION.