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    2.
    发明专利
    未知

    公开(公告)号：SE359290B

    公开(公告)日：1973-08-27

    申请号：SE208771

    申请日：1971-02-18

    Applicant: HOECHST AG

    Inventor： VOIGT H ,  SCHNECK E ,  GUENTHER K ,  NOHA K

    IPC: B01D51/10 ,  C10G9/00 ,  F28C3/06 ,  C07C3/30 ,  C07C11/24

    Abstract: In a process for the production of acetylene and/or lower olefins from hydrocarbons the enthalpy of cracked gas is recovered in two stages by an oil wash. In the first stage of the oil wash using temperatures within the boiling range of the wash oil and approximately atmospheric pressures, a cycle of high-boiling oil components is maintained and condensed lower boiling oil components which are recycled from the second wash stage are directly vaporized by the cracked gases. The saturated mixture of oil vapor and cracked gases formed in the first stage is fed to the second wash stage and condensed therein by indirect cooling.

    3.
    发明专利
    未知

    公开(公告)号：SE360104B

    公开(公告)日：1973-09-17

    申请号：SE322971

    申请日：1971-03-12

    Applicant: HOECHST AG

    Inventor： GUENTHER K ,  SCHNECK E ,  VOIGT H ,  WESSELBORG K

    IPC: B01D51/10 ,  B01D53/26 ,  C10G9/16

    Abstract: Readily polymerizing impurities are separated from crude gas obtained by pyrolysis by washing the crude gas with water and then pre-cooling the crude gas which is still hot with atomized cold calcium chloride solution before drying it with circulated cold calcium chloride solution. Part of the calcium chloride solution is continuously removed from the cycle of calcium chloride solution.

    4.
    发明专利
    未知

    公开(公告)号：SE318268B

    公开(公告)日：1969-12-08

    申请号：SE26268

    申请日：1968-01-09

    Applicant: HOECHST AG

    Inventor： ROSCHER G ,  GUENTHER K ,  SCHOLDERER J ,  PROBST O

    IPC: C07C51/00 ,  C07C69/15 ,  C07C51/44 ,  C07C51/46 ,  C07C53/08 ,  C07C67/00 ,  C07C33/02

    Abstract: 1,208,167. Recovery of vinyl esters. FARBWERKE HOECHST A.G. 12 Jan., 1968 [12 Jan., 1967], No. 1815/68. Heading C2C. Vinyl esters and carboxylic acids are continuously recovered from crude mixtures originating from the reaction of carboxylic acids with ethylene and oxygen, which mixture contains the ester, unreacted acid and water, by distilling the mixture in a first distilling column, if desired in the presence of a further substance which forms an azeotrope with water, and separating the azeotrope and the by-products having a lower boiling point than the vinyl ester at the head of the column, withdrawing from the sump of the column a practically anhydrous mixture, distilling said mixture in a second distilling column, withdrawing from the head of the second column the vinyl ester, from one or more concentrating zones between the head and the sump at least a major part of the by-products having a higher boiling point than the vinyl ester, and below the lowest concentrating zone or from the sump the carboxylic acid and the rest of the by-products. It is preferred to use the vinyl ester contained in the crude mixture as the substance forming an azeotrope with water. After separation of the vinyl ester from the azeotropic mixture obtained at the head of the first distilling column, the ester is recycled into the column. Examples describe the process applied to a mixture containing acetic acid, vinyl acetate, water, ethyl acetate and acetaldehyde and one containing isobutyric acid, vinyl isobutyrate, water, ethyl isobutyrate and acetaldehyde.

    5.
    发明专利
    未知

    公开(公告)号：BR7409595A

    公开(公告)日：1976-05-25

    申请号：BR959574

    申请日：1974-11-14

    Applicant: HOECHST AG

    Inventor： DIERY H ,  SCHNEIDER G ,  SCHRINNER E ,  GUENTHER K

    IPC: C07C67/00 ,  C07C209/00 ,  C07C209/60 ,  C07C211/14 ,  C11D1/88 ,  C11D3/48

    Abstract: 1484918 Detergent compositions HOECHST AG 15 Nov 1974 [16 Nov 1973] 49538/74 Heading C5D [Also in Division C2] Anionio cationic and/or non-ionic detergent compositions contain as an anti-microbial agent a compound of formula in which one or two of the radicals R 1 to R 7 represent a C 8-18 alkyl or alkenyl radical, one or two of the radicals R 2 -R 6 represent a radical of formula wherein Y is a hydrogen or alkali metal atom, each of the remaining radicals R 1 to R 7 represent a hydrogen atom or a methyl group, n is 2 or 3 and o and p are zero or 1. The compositions may also contain optical brightening agents, perborates, enzymes, perfumes, fluorescence agents, foam-producing and foam-depressing agents, and deposit-preventing auxiliaries. Examples disclose compositions containing antimicrobial compounds as above together with (3) the sodium salt of a secondary alkane sulphonic acid (or the sodium salt of dodecylbenzene sulphonic acid or a mixture of the former with the sodium salt of a C 15-18 olefin sulphonate), oxyethylated tallow fatty alcohol, sodium soap, sodium tripolyphosphate, sodium metasilicate, magnesium silicate, carboxymethyl cellulose, optical brightener, perfume oil and sodium perborate, (4) oxyethylated coco fatty acid, oxyethylated isotridecyl alcohol, sodium tripolyphosphate, sodium silicate, calcined sodium carbonate, carboxymethyl cellulose and sodium sulphate, (5) distearyl-dimethylammonium chloride, oxyethylated oleyl alcohol, an optical brightener and perfume oil, (6) oxyethylated coco fatty alcohol, perfume and dyestuffs, (7) oxyethylated coco fatty alcohol, sodium tripolyphosphate, sodium silicate, calcined sodium carbonate, carboxymethyl cellulose and sodium sulphate.

    8.
    发明专利
    未知

    公开(公告)号：NO128538B

    公开(公告)日：1973-12-03

    申请号：NO57971

    申请日：1971-02-17

    Applicant: HOECHST AG

    Inventor： VOIGT H ,  SCHNECK E ,  GUENTHER K ,  NOHA K

    IPC: B01D51/10 ,  C10G9/00 ,  F28C3/06 ,  C10K1/18

    Abstract: In a process for the production of acetylene and/or lower olefins from hydrocarbons the enthalpy of cracked gas is recovered in two stages by an oil wash. In the first stage of the oil wash using temperatures within the boiling range of the wash oil and approximately atmospheric pressures, a cycle of high-boiling oil components is maintained and condensed lower boiling oil components which are recycled from the second wash stage are directly vaporized by the cracked gases. The saturated mixture of oil vapor and cracked gases formed in the first stage is fed to the second wash stage and condensed therein by indirect cooling.

    9.
    发明专利
    未知

    公开(公告)号：NO128071B

    公开(公告)日：1973-09-24

    申请号：NO73371

    申请日：1971-02-26

    Applicant: HOECHST AG

    Inventor： GUENTHER K ,  SCHNECK E ,  VOIGT H ,  WESSELBORG K

    IPC: B01D51/10 ,  B01D53/26 ,  C10K1/00

    Abstract: Readily polymerizing impurities are separated from crude gas obtained by pyrolysis by washing the crude gas with water and then pre-cooling the crude gas which is still hot with atomized cold calcium chloride solution before drying it with circulated cold calcium chloride solution. Part of the calcium chloride solution is continuously removed from the cycle of calcium chloride solution.

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