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公开(公告)号：US3622267A
公开(公告)日：1971-11-23
申请号：US3622267D
申请日：1970-01-19
Applicant: BASF AG
Inventor： BARTHOLOME ERNST , SCHMIDT HANS WILHELM , FRIEBE JUERGEN
CPC classification number: B01D53/1493 , B01D53/1462 , B01D53/526 , C01B3/52 , C01B2203/025 , C01B2203/0475 , C01B2203/0485 , C01B2203/1247 , C10K1/143 , Y02C10/06 , Y02P20/152
Abstract: Separation of carbon dioxide and hydrogen sulfide from gases by scrubbing the gases with a 2.5 to 4.5 molar aqueous solution of methydiethanolamine at a temperature of from 70* to 110* C. From 0.1 to 0.4 mole of monomethylmonoethanolamine is also added to the solution for the removal of any carbonyl sulfide.
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公开(公告)号：DK157311C
公开(公告)日：1990-05-07
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：AU8372582A
公开(公告)日：1982-11-18
申请号：AU8372582
申请日：1982-05-14
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
IPC: A23K1/00 , A23L1/275 , A23L5/40 , A23L5/41 , A61K31/00 , B01J13/04 , C09B61/00 , C09B67/42 , C07C175/00 , C09B67/10 , C09B67/20
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：GB981656A
公开(公告)日：1965-01-27
申请号：GB1629063
申请日：1963-04-25
Applicant: BASF AG
Inventor： SCHMIDT HANS WILHELM , RITTINGER WILHELM , GERSTACKER ELFRIEDE
IPC: C07C7/11
Abstract: Carbonyl sulphide and organic combined sulphur are removed from olefin containing gases by washing under superatmospheric pressure with a caustic alkali solution of 2 to 6% by weight of the total weight of the solution at 50 DEG to 110 DEG C. in one or more reaction vessels whose exchange surface is not less than 2 sq. m./cu. m. of the hourly throughput of gas. Starting materials used may be obtained by thermal or autothermal cracking of petroleum or fractions thereof. Preferably the process takes place at 85 DEG to 95 DEG C. at a pressure of 10 to 35 atmospheres. As shown, an olefin containing gas having the composition 8.7% CO, 14.3% H2, 5.1% N2, 25.3% CH4, 8.0% C2H6, 0.4% C3H8, 29.8% C2H4, 6.8% C3H6 and 1.6% C4H8 is introduced through pipe 1 and contacts in absorption tower 2 caustic soda solution supplied in countercurrent flow through pipe 6. Tower 2 is filled with 35 mm. steel rings to a depth of 15 m., the internal diameter of the tower being 1.3 m., so that an exchange surface of about 4 sq. m./cu. m. of gas results. Purified olefin containing gas passes out through line 3 and the caustic soda solution is recycled through retention tank 8, pump 9 and heater 5. Spent liquor may be withdrawn from the system through pipe 10 and used for a preliminary purification step and an equivalent volume of fresh caustic soda solution supplied through pipe 4. The carbonyl sulphide and organic combined sulphur can thus be removed to the extent of 90% or more. Columns having suitable baffles or a packing of conventional tower packing, e.g. packed columns, bubble tray columns and bubble columns are also suitable as reactors in the process of the present invention, which may be continuous or batchwise.
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公开(公告)号：DK157311B
公开(公告)日：1989-12-11
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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Patent Agency Ranking
公开(公告)号：DK154395C
公开(公告)日：1989-04-10
申请号：DK216082
申请日：1982-05-13
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：DK334188A
公开(公告)日：1988-06-17
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：DK154395B
公开(公告)日：1988-11-14
申请号：DK216082
申请日：1982-05-13
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：DK334188D0
公开(公告)日：1988-06-17
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：AU553623B2
公开(公告)日：1986-07-24
申请号：AU8372582
申请日：1982-05-14
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
IPC: A23K1/00 , A23L1/275 , A23L5/40 , A23L5/41 , A61K31/00 , B01J13/04 , C09B61/00 , C09B67/42 , C07C175/00 , C09B67/10 , C09B67/20 , C09B67/02
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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