公开(公告)号：US3778415A

公开(公告)日：1973-12-11

申请号：US3778415D

申请日：1971-08-13

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： KO D

IPC: C07C2/66 ,  B01J19/00 ,  C07C1/00 ,  C07C15/085 ,  C07C67/00 ,  C07C3/62

CPC classification number: C07C15/085 ,  B01J19/0006 ,  Y10S585/901 ,  Y10S585/954

Abstract: AN IMPROVEMENT IN A PROCESS WHEREIN A FIRST COMPOUND AND A SECOND COMPOUND REACT WITH EACH OTHER TO PRODUCE A THIRD COMPOUND AND A FOURTH COMPOUND IN ESSENTIALLY IRREVERSIBLE REACTIONS AND THE SECOND AND FOURTH COMPOUNDS REACT WITH EACH OTHER TO PRODUCE THE THIRD COMPOUND IN EQUILIBRIUM-LIMITED REACTIONS, THE SECOND COMPOUND BEING PRESENT IN THE REACTION MIXTURE IN EXCESS OF THAT REQUIRED FOR THE REACTIONS, AND THE EXCESS AMOUNT OF THE SECOND COMPOUND IS RECYCLED TO THE REACTION ZONE, WHICH INVOLVES REDUCING THE AMOUNT OF THE SECOND COMPOUND IN THE REACTION MIXTURE, INTRODUCING THEREIN THE FOURTH COMPOUND IN AN AMOUNT GREATER THAN WOULD BE PRESENT AT EQUILIBRIUM AND TERMINATING THE PROCESS BEFORE THE REACTION MIXTURE REACHES EQUILIBRIUM.

公开(公告)号：US3776901A

公开(公告)日：1973-12-04

申请号：US3776901D

申请日：1968-04-01

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： KELLY K ,  MATTHEWS J

IPC: C07D201/04 ,  C07D41/06

CPC classification number: C07D201/04

Abstract: A METHOD FOR CONVERTING A KETOXIME TO AN N-SUBSTITUTED AMIDE BY REACTING A KETOXIME WITH A COMPLEX OF AN NSUBSTITUTED CARBOXYLIC ACID AMIDE AND SULFUR TRIOXIDE TO FORM A NOVEL COMPOUND OF THE KETOXIME, CARBOXYLIC ACID AMIDE AND SULFUR TRIOXIDE AND DECOMPOSING THIS COMPOUND TO PRODUCE AN N-SUBSTITUTED AMIDE CORRESPONDING TO THE KETOXIME. CYCLOHEXANONE OXIME IS CONVERTED TO CAPROLACTAM.

公开(公告)号：US3775494A

公开(公告)日：1973-11-27

申请号：US3775494D

申请日：1971-11-26

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： CARR N

IPC: B01J19/00 ,  C07C5/10 ,  C10G23/00

CPC classification number: B01J19/0006 ,  C07C5/10 ,  C07C2601/14 ,  C07C13/18

Abstract: A METHOD FOR CONTROLLING A HYDROGENATION PLANT TO AVOID LOCALIZED REACTOR HOT SPOTS AND TO AVOID REACTOR RUN-AWAY AND CATALYST DETERIORATION CAUSED THEREBY IS DISCLOSED FOR SUCH PLAANT INCLUDING A REACTOR AND CATALYST SYSTEM FOR PRODUCING A SATURATED HYDROCARBON FROM A CORRESPONDING UNSATURATED HYDROCARBON. THE METHOD COMPRISES THE STEPS OF SUPPLYING GASEOUS HYDROGEN AND LIQUID UNSATURATED HYDROCARBON FOR THE REACTOR AND CATALYST SYSTEM, SUPPLYING A RECYCLE PORTION OF A PRODUCT OF SAID SYSTEM INCLUDING SUCH SATURATED HYDROCARBON FOR THE INLET OF SAID REACTOR AND CATALYST SYSTEM, SUPPLYING AT LEAST THE LIQUID UNSATURATED HYDROCARBON AND ANY LIQUID PORTION OF SAID RECYCLE PORTION TO THE SYSTEM IN HEAT EXCHANGE RELATION WITH AN EFFLUENT STREAM OF THE SYSTEM, HEAT EXCHANGING THE UNSATURATED HYDROCARBON AND THE RECYCLE PORTION PRIOR TO INLETTING THE REACTOR SYSTEM AND CONTROLLING THE FLOW RATE THEREOF INTO SAID REACTOR SYSTEM SO THAT THE TEMPERATURE OF ALL MATERIALS ENTERING THE SYSTEM INCLUDING THE RECYCLE PORTION IS ABOVE THE DEW POINT OF THE MIXTURE COMPRISING THE TOTAL REACTOR

FLUID, AND CONTROLLING THE TEMPERATURE OF THESE MATERIALS INCLUDING THE RECYCLE PORTION THROUGHOUT EVERY PORTION OF THE REACTOR AND CATALYST SYSTEM SO THAT THE TEMPERATURES REMAIN CONTINUALLY ABOVE THE DEW POINTS OF ALL OF THE MATERIALS AND THAT ALL MATERIALS ENTERING THE SYSTEM ARE MAINTAINED ENTIRELY IN THEIR GASEOUS PHASE UNIFORMLY THROUGHOUT THE SYSTEM.

公开(公告)号：US3775305A

公开(公告)日：1973-11-27

申请号：US3775305D

申请日：1971-12-08

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： MCKINNEY J ,  PARASKOS J

IPC: C10L1/02 ,  C10G45/08 ,  C10G65/04 ,  C10G23/02

CPC classification number: C10G65/04 ,  C10G2300/107

Abstract: ASPHALT-CONTAINING OILS ARE HYDRODESULFURIZED TO BELOW A REFRACTORY SULFUR LEVEL WITHOUT EXCESSIVELY CONVERTING THE ASPHALT PRESENT BY EMPLOYING A TWO-STAGE HYDRODESULFURIZATION SYSTEM WITH INTERSTAGE HYDROGEN SULFIDE AND LIGHT OIL REMOVAL, WHEREIN THE AVERAGE HYDROGEN PARTIAL PRESSURE IN EACH HYDROESULFURIZATION STAGE IS MAINTAINED SUFFICIENTLY HIGH THAT THE AVERAGE REACTION RATE CONSTANT IS IMPROVED BY A TWO-STAGE OPERATION, BUT SUFFICIENTLY LOW SO THAT NOT LESS THAN ABOUT 50 PERCENT BY WEIGHT OF THE FEED IS RECOVERED AS A PRODUCT BOILING ABOVE THE I.B.P. OF THE FEED.

公开(公告)号：US3770493A

公开(公告)日：1973-11-06

申请号：US3770493D

申请日：1972-02-28

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： GILBERT R

IPC: C08F8/20 ,  B32B15/08 ,  C09D3/60

CPC classification number: C08F8/20 ,  Y10T428/3154 ,  Y10T428/31692 ,  C08F10/00

Abstract: Coated articles are prepared in which a fibrous web, wood, or metal substrate is coated with a fluorohydrocarbon polymer prepared by fluorinating a hydrocarbon polymer containing trans unsaturation, prepared by deacetylation of an ethylene-vinyl acetate copolymer, with a lead oxide - hydrogen fluoride fluorinating agent.

Abstract translation: 制备涂布制品，其中纤维网，木材或金属基材用氟化烃聚合物涂覆，氟化烃聚合物通过氟化含氧反应 - 氟化氢氟化氟乙烯 - 乙酸乙烯酯共聚物脱乙酰制备的含有反式不饱和的烃聚合物 代理商

公开(公告)号：US3769360A

公开(公告)日：1973-10-30

申请号：US3769360D

申请日：1971-04-09

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： HARPER E ,  WILLIAMSON R

IPC: B01J29/08 ,  C07C6/12 ,  C07C3/62

CPC classification number: B01J29/08 ,  C07C6/126 ,  Y02P20/588 ,  C07C15/073

Abstract: PROCESS FOR TRANSALKYLATING DIETHYL BENZENE TO ETHYL BENZENE WHICH INVOLVES REACTING DIETHYL BENZENE AND BENZENE IN THE VAPOR PHASE IN THE PRESENCE OF A ZEOLITIC MOLECULAR SIEVE CATALYST.

公开(公告)号：US3769357A

公开(公告)日：1973-10-30

申请号：US3769357D

申请日：1973-02-05

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： BACHA J ,  SELWITZ C

IPC: C07C67/00 ,  C07C201/00 ,  C07C205/05 ,  C07C79/08

CPC classification number: C07C201/12 ,  C07C2601/02 ,  C07C205/05

Abstract: NITROCYCLOPOPANE IS PREPARED BY REACTING NITROMETHANE AND A 1,2-DIHALOETHANE IN THE PRESENCE OF A BASE AND A POLAR, APROTIC SOLVENT. NITROMETHANE AND 1,2-DIBROMOETHANE REACT IN DIMETHYL SULFOXIDE IN THE PRESENCE OF POTASSIUM CARBONATE WITH THE PRODUCTION OF NITROCYCLOPROPANE.

公开(公告)号：US3769261A

公开(公告)日：1973-10-30

申请号：US3769261D

申请日：1972-05-08

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： JONES J ,  CLAMPITT B ,  HENRY R

IPC: C08F8/00 ,  C08F45/60

CPC classification number: C08F8/00 ,  C08F20/12

Abstract: A METHOD OF MAKING A COPOLYMER OF ETHYLENE AND AT LEAST ONE ETHYLENICALLY UNSATURATED CARBOXYLIC ACID COMPRISING THE STEPS OF FIRST THERMALLY DECOMPOSING THE ESTER MOIETIES OF A COPOLYMER OF ETHYLENE AND THE ISOPROPYL ESTER OF AT LEAST ONE ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND THEREAFTER CONTACTING THE THERMALLY DECOMPOSED COPOLYMER WITH A DIAMINE. THE RESULTING ETHYLENE-CARBOXYLIC ACID COPOLYMER EXHIBITS A STORAGE STABLE MELT INDEX. THE DIAMINE CONTACTING MAY BE ACCOMPLISHED WITH EITHER AN AQUEOUS SOLUTION OF A SUITABLE DIAMINE OR A VAPOR THEREOF. WHEN AN AQUEOUS SOLUTION IS EMPLOYED, THE CONTACTING WILL GENERALLY BE ACCOMPLISHED AT A TEMPERATURE BETWEEN ABOUT 0 AND 50*C. WHILE A TEMPERATURE BETWEEN 20 AND 100*C. WILL BE USED FOR VAPOR PHASE CONTACTING. THE CONTACTING TIME IS, GENERALLY, SHORT AND THE COPOLYMER PRODUCT WILL CONTAIN LESS THAN 5000 P.P.M. BY WEIGHT DIAMINE, PREFERABLY LESS THAN 1000 P.P.M. AND MOST PREFERABLY LESS THAN 100 P.P.M.

公开(公告)号：US3749566A

公开(公告)日：1973-07-31

申请号：US3749566D

申请日：1971-02-08

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： HOFFMANN O

IPC: A01N25/32 ,  A01N37/10 ,  A01N37/14 ,  A01N37/18 ,  A01N37/30 ,  A01N43/26 ,  A45F5/10 ,  C07C63/38 ,  C07C333/02 ,  A01N9/12

CPC classification number: C07C63/38 ,  A01N25/32 ,  A01N37/10 ,  A01N37/14 ,  A01N37/18 ,  A01N37/30 ,  A01N43/26 ,  A45F5/10 ,  C07C333/02

Abstract: IN COMBATING UNDESIRED VEGETATION IN GROWING LOW LAND RICE, RICE SEED IS SOAKED FOR A PERIOD OF ABOUT ONE DAY IN AND AQUEOUS SOLUTION CONTAINING ABOUT ONE PERCENT OF SODIUM HYPOCHLORITE BLEACHING SOLUTION AND FROM ABOUT 1/8 PERCENT TO ABOUT ONE PERCENT PREFERABLY ABOUT 1/4 PERCENT OF THE WATER SOLUBLE DIMETHYLAMINE OR DIETHANOLAMINE SALT MADE BY REACTING THE AMINE WITH 1,8-NAPHTHALIC ANHYDRIDE OR 1,8-NAPHTHALIC ACID PRIOR TO PLANTING. THE RICE SEED SO TREATED IS RENDERED RESISTANT TO PREEMERGENCE HERBICIDES SUCH AS MOLINATE, WHICH MAY THEN BE USED TO COMBAT PARTICULARLY NOXIOUS WEEDS SUCH AS RED RICE.

公开(公告)号：US3748256A

公开(公告)日：1973-07-24

申请号：US3748256D

申请日：1971-08-23

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： KO D ,  STAHLFELD D

IPC: C10G59/02 ,  C10G39/00

CPC classification number: C10G59/02

Abstract: A C5+ NAPHTHA CONTAINING C6 THROUGH C10 AND EVEN C11 AND C12 NAPHTHENES AND LINEAR (NON-RING STRUCTURE) PARAFFINS IS REFORMED TO IMPROVE ITS OCTANE VALUE BY PASSAGE THROUGH ONE OR A PLURALITY OF RELATIVELY HIGH PRESSURE ACIDIC PLATINUM CATALYST NAPHTHENE AROMATIZATION REACTORS IN SERIES WITH ONE OR MORE RELATIVELY LOWER PRESSURE PARAFFIN DEHYDROCYCLIZATION CATALYST REACTORS. MOST C9 AND C10 LINEAR PARAFFINS HAVE AN EXTREMELY LOW OCTANE VALUE (THE OCTANE NUMBER OF NORMAL DECANE IS - 53) AND MUST GENERALLY BE CRACKED TO HIGHER OCTANE NUMBER FRAGMENTS OR TO GASES TO ACHIEVE A GASOLINE PRODUCT OF SATISFACTORY OCTANE NUMBER. IN THE PRIOR ART THIS CRACKING GENERALLY OCCURRED IN THE ACIDIC PLATINUM CATALYST PHASE WHEREIN THE HYDROGEN PRESSURE IS HIGH, PROTECTING THE CATALYST FROM EXCESSIVE COKING. CRACKING OF THE C9 AND C10 PARAFFINS IN THE DEHYDROCYCLIZATION PHASE WHEREIN THE TOTAL PRESSURE IS LOWER IN ORDER TO FAVOR DEHYDROCYCLIZATION IN ADDITION TO DEHYDROGENATION WOULD RESULT IN SEVERE COKING OF CATALYST. ACCORDING TO THIS INVENTION C9 AND C10 LINEAR PARAFFINS ARE NOT HYDROCRACKED BUT RATHER ARE DEHYDROCYCLIZED. IT HAS NOW BEEN DISCOVERED THAT THE DEHYDROCYCLIZATION PHASE MUST DEHYDROCYCLIZE C9 AND C10 PARAFINS TO C9 AND C10 AROMATICS IF THERE IS TO BE AN INCREASE IN OCTANE-BARREL VALUE IN THE DEHYDROCYCLIZATION PHASE. ACCORDING TO THE PRESENT PROCESS, THE C9 AND C10 PARAFFINS ARE NOT CRACKED IN THE HIGH PRESSURE PASE BUT ARE CHARGED TO THE LOW PRESSURE DEHYDROCYCLIZATION CATALYST PHASE WHEREIN THE PRESSURE IS SUFFICIENTL Y LOW TO DEHYDROCYCLIZATION THE C9 AND C10 PARAFFINS SO THAT THERE IS A NET INCREASE IN C9 AND C10 AROMATICS IN THE DEHYDROCYCLIZATION PHASE. THE PRESSURE IN THE DEHYDROCYCLIZATION PHASE IS SUFFICIENTLY LOW THAT THERE IS RELATIVELY LITTLE OR NO NET INCREASE IN C6 AND C7 AROMATICS AT LEAST IN THE ZONE OF THE DEHYDROCYCLIZATION PHASE WHEREIN DEHYDROAROMATIZATION OF C9 AND C10 PARAFFINS OCCURS. IT HAS NOW BEEN DISCOVERED THAT A SIGNIFICANT NET INCREASE OF C9 AND C10 AROMATICS IS INCOMPATIBLE WITH A SIGNIFICANT NET INCREASE IN C6 AND C7 AROMATICS IN THE SAME DEHYDROCYCLIZATION ZONE, AND VICE VERSA. IT HAS FURTHER BEEN DISDISCOVERED THAT DEHYDROCYCLIZATION OF C9 AND C10 LINEAR PARAFFINS IS ENHANCED BY THE PRESENCE IN THE FEED OF C9 AND C10 AROMATICS CONTAINING MULTI-METHYL OR ETHYL GROUPS ON THE BENZENE RING TOGETHER WITH A HIGH RATIO OF HYDROGEN TO HYDROCARBON, EVEN THOUGH BOTH AROMATICS AND HYDROGEN ARE PRODUCTS OF THE REACTION. THEREFORE, A VARIATION IN THE PROCESS ACCOMPLISHES DEHYDROCYCLIZATION OF C6 AND C7 LINEAR PARAFFINS IN AN UPSTREAM ZONE OF THE DEHYDROCYCLIZA TION PHASE AND UTILIZES THE HYDROGEN AND AROMATICS THEREIN PRODUCED WITH OR WITHOUT HYDROGEN AND AROMATICS PRODUCED IN THE HIGH PRESSURE NAPHTHENE AROMATIZATION PHASE TO ENHANCE DEHYDROCYCLIZATION OF C9 AND C10 PARAFFINS WHICH ARE SEPARATELY ADDED TO A DOWNSTREAM ZONE IN THE DEHYDROCYCLIZATION PHASE.