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Patent Agency Ranking
公开(公告)号：US3839465A
公开(公告)日：1974-10-01
申请号：US16090971
申请日：1971-07-08
Applicant: BASF AG
Inventor： SCHNEIDER K , HOVEMANN F
IPC: C07C41/03 , C07C43/178 , C07C41/02 , C07C41/06
CPC classification number: C07C43/178 , C07C41/03
Abstract: IN WHICH X IS ONE OF THE INTEGERS 1 TO 3, BY REACTING PURIFIED BUTUNE-2-DIOL-1,4 WITH ETHYLENE OXIDE IN THE PRESENCE OF BASIFYING AGENTS, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION BY CHARGING THE BUTYNE-DIOL INTO AN AUTOCLAVE TOGETHER WITH A BASIC ION EXCHANGER RESIN AS BASIFYING AGENT AND FEEDING ETHYLENE OXIDE CONTINOUSLU TO THE AUTOCLAVE FOR FROM 8 TO 16 HOURS AT A REACTION TEMPERATURE OF RROM 45* TO 60*C. THE REACTION MIXTURE THEN BEING LEFT TO STAND AT SAID TEMPERATURE UNTIL THE PRESSURE REMAINS CONSTANT SAID ION EXCHANGER RESIN BEIN A PARTIALLY CROSSLINKED ORGANIC POLYMER BASED ON POLYSTYRENE AND DIVINYL BENZENE AS CROSS-LINKING COMPONENTS SAID POLYMER CARRYING NITROGEN-CONTAINING GROUPS OF THE FORMULAE
-N(+)(-R)(-R'')-R", -N(+)(-R)(-R'')- OR >N(+)(-R)-
IN THE MACROMOLECULE, IN WHICH R, R'' AND R" DENOTE METHYL OR B-HYDROXYLETHYL, THE FREE VALENCES BEING ATTACHED TO THE MACROMOLECULE THROUGH CARBON ATOMS.
1. IN A PROCESS FOR THE PRODUCTION OF HYDROXYETHYL ETHERS OF BUTYNE-2-DIOL-1,4 OF THE FORMULA
HO(H4C2O)X-H2C-C=C-CH2-(OCH2H4)XOH,-
公开(公告)号：US3839372A
公开(公告)日：1974-10-01
申请号：US14978171
申请日：1971-06-03
Applicant: BASF AG
Inventor： SCHNEIDER K
IPC: C08G69/48 , C07C103/30
CPC classification number: C08G69/48
Abstract: 1. THE WATER-SOLUBLE, HIGHLY OXYETHYLATED, SYNTHETIC POLYMIDE CONTAINING CHEMICALLY COMBINED ETHYLENE OXIDE IN AN AMOUNT OF AT LEAST 10 TIMES THE WEIGHT OF THE POLYAMIDE PORTION, SAID OXYETHYLATED POLYAMIDE BEING OBTAINED BY REACTING. (A) A LOWER-DEGREE OXYETHYLATED POLYAMIDE, WHICH CONTAINS AT LEAST 50% BY EIGHT OF COMBINED ETHYLENE OXIDE, AND WHICH HAS BEEN PREPARED BY REACTING A SYNTHETIC LINEAR POLYAMIDE HAVING RECURRING -CO-NH-GROUPS IN THE BACKBONE WITH FROM 2.5 TO 10 TIMES ITS WEIGHT OF ETHYLENE OXIDE IN THE PRESENCE OF AT LAST ONE INERT LIQUID SOLVENT SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC AND CYCLOALIPHATIC HYDROCARBONS, SAID SOLLVENT BEING INERT UNDER THE REACTION CONDITIONS AND HAVING NO SOLVENT OR SWELLING ACTION ON THE POLAMIDE OR ON THE OXYETHYLATED POLYACTION ON THE POLYAMIDE OR ON THE OXYETHYLATED POLYC. AND AT ATMOSPHERIC OR SUPERATMOSPHERIC PRESSURE IN THE ABSENCE OF ANY OXYETHYLATION CATALYST, WITH (B) AT LEAST 10 TIMES ITS WEIGHT OF ETHYLENE OXIDE IN THE PRESENCE OF SAID INERT HYDROCARBON SOLVENT, AT A TEMPERATURE OF FROM 60*C. THE 150*C. AND AT ATMOSPHERIC OR SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF AN OXYETHYLATION CATALYST.
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公开(公告)号：BR7803386A
公开(公告)日：1979-01-02
申请号：BR7803386
申请日：1978-05-26
Applicant: BASF AG
Inventor： WEITZ H , BENDER D , VOLKAMER K , STOCKBURGER D , WAGNER U , SCHWENTKER H , SCHNEIDER K
Abstract: A process for separating, by means of a selective solvent, a mixture of C4-hydrocarbons which contains some hydrocarbons which are more soluble in the selective solvent and some which are less soluble therein, in which process the hydrocarbon mixture is separated, in an extractive distillation zone, into a top product which contains the less soluble hydrocarbons and an extract which contains the more soluble hydrocarbons and the selective solvent, the extract, taken off as the bottom product, is subjected to a flash evaporation and the resulting vapor component of the extract is recycled to the extractive distillation zone while the liquid phase remaining after the flash evaporation is fed to a solvent recovery zone, in which the liquid phase obtained from the flash evaporation is separated into a product containing the hydrocarbons and, as the bottom product, the selective solvent which has been freed from the hydrocarbons, the resulting selective solvent is recycled to the extractive distillation zone and the product which is obtained from the solvent recovery zone and contains the hydrocarbons is partially or completely recycled to the extractive distillation zone, after increasing the pressure in a compression zone, in which process the extract taken off the extractive distillation zone is brought, prior to the flash evaporation to a higher pressure than the pressure in the extractive distillation zone and thereafter the extract which is under this higher pressure is heated, in a heat exchange zone, by indirect heat exchange with the selective solvent obtained as the bottom product from the solvent recovery zone, and the heated extract is subsequently let down, in the flash evaporation, to a pressure which is at least equal to the pressure in the extractive distillation zone and is higher than the pressure in the solvent recovery zone.
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公开(公告)号：BR8001594A
公开(公告)日：1980-11-18
申请号：BR8001594
申请日：1980-03-18
Applicant: BASF AG
Inventor： VOLKAMER K , SCHNEIDER K , WELTZ H , LINDNER A , BROELLOS K , WAGNER U
Abstract: A process for isolating a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises (a) from 1 to 99 percent by weight of an N-alkyl-substituted lower aliphatic acid amide or of an N-alkyl-substituted alicyclic acid amide having 5 ring members and (b) from 1 to 99 percent by weight of an aliphatic or alicyclic ether boiling at from 30 DEG C. to 200 DEG C.
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公开(公告)号：BR8001582A
公开(公告)日：1980-11-18
申请号：BR8001582
申请日：1980-03-17
Applicant: BASF AG
Inventor： WEITZ H , BROELLOS K , SCHNEIDER K , LINDNER A , WAGNER U , VOLKAMER K
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