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    1.
    发明专利
    未知

    公开(公告)号：DD291973A5

    公开(公告)日：1991-07-18

    申请号：DD33791890

    申请日：1990-02-16

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  THUEMMLER URSUS

    IPC: C01B25/00 ,  C08K3/02 ,  C08K9/04 ,  C08K9/08 ,  C01B25/023

    Abstract: Phlegmatised, pulverulent, readily free-flowing red phosphorus comprises from 95 to 99.95 % by weight of red phosphorus having a particle size of up to 2 mm and from 0.05 to 5 % by weight of polyurethane as phlegmatising agent. This red phosphorus is prepared by introducing an aqueous polyurethane dispersion into an aqueous suspension of red phosphorus having a particle size of up to 2 mm and a pH of from 5 to 9 in such a manner that from 95 to 99.95 parts by weight of red phosphorus are present per 5 to 0.05 parts by weight of polyurethane, then stirring the mixture for from 0.5 to 3 hours at a temperature of from 20 to 90 DEG C, filtering the mixture, and finally drying the phlegmatised red phosphorus at elevated temperature.

    PROCESS AND DEVICE FOR TRANSFORMING LIQUID FURNACE SLAG INTO GRANULES
    4.
    发明专利
    PROCESS AND DEVICE FOR TRANSFORMING LIQUID FURNACE SLAG INTO GRANULES 未知

    公开(公告)号：CA981458A

    公开(公告)日：1976-01-13

    申请号：CA156806

    申请日：1972-11-17

    Applicant: HOECHST AG

    Inventor： THUEMMLER URSUS ,  WERNER HUGO ,  KERBER HANS

    IPC: C04B5/02 ,  C21B3/08

    Abstract: Liquid furnace slag, more particularly liquid phosphorus furnace slag, is transformed into granules. To this end, impinging contact between a free falling stream of liquid slag and a focused stream of water maintained under a pressure between 0.5 and 1.5 atmospheres gauge is produced so as to effect break-up of the slag into particles. The resulting particles are delivered to, and complete solidification thereof is effected in, a cooling zone having water therein.

    PROCESS AND APPARATUS FOR PRODUCING PHOSPHOROUS PENTOXIDE AND PHOSPHORIC ACID WITH UTILIZING REACTION HEAT
    6.
    发明专利
    PROCESS AND APPARATUS FOR PRODUCING PHOSPHOROUS PENTOXIDE AND PHOSPHORIC ACID WITH UTILIZING REACTION HEAT 未知

    公开(公告)号：HU203851B

    公开(公告)日：1991-10-28

    申请号：HU184484

    申请日：1984-05-11

    Applicant: HOECHST AG

    Inventor： THUEMMLER URSUS ,  KLEMM WALTER ,  KUXFORD BERNHARD ,  LUHR PETER ,  WERNER HUGO

    IPC: F22B33/18 ,  C01B25/12 ,  C01B25/20 ,  F22D1/02 ,  C01B25/234 ,  F22B1/18

    Abstract: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for water or a water/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the water or water/steam-mixture assuming an increased temperature being circulated, preferably under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh desalted water to be introduced into the cooling system; for hot gaseous phosphorus pentoxide issuing from the combustion chamber to be condensed or worked up into phosphoric acid; for the steam taken from the cooling system to be passed through a steam delivery pipe disposed in the upper portion of the combustion chamber, or through a delivery conduit for product gas containing phosphorus pentoxide; for the steam to be heated therein to a temperature of 400 DEG to 600 DEG C. under constant pressure, and for the steam so superheated to be used.

    9.
    发明专利
    未知

    公开(公告)号：DD219169A5

    公开(公告)日：1985-02-27

    申请号：DD26295684

    申请日：1984-05-11

    Applicant: HOECHST AG

    Inventor： KUXDORF BERNHARD ,  LUHR PETER ,  THUEMMLER URSUS ,  WERNER HUGO ,  KLEMM WALTER

    IPC: F22B33/18 ,  C01B25/12 ,  C01B25/20 ,  F22D1/02

    Abstract: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for water or a water/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the water or water/steam-mixture assuming an increased temperature being circulated, preferably under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh desalted water to be introduced into the cooling system; for hot gaseous phosphorus pentoxide issuing from the combustion chamber to be condensed or worked up into phosphoric acid; for the steam taken from the cooling system to be passed through a steam delivery pipe disposed in the upper portion of the combustion chamber, or through a delivery conduit for product gas containing phosphorus pentoxide; for the steam to be heated therein to a temperature of 400 DEG to 600 DEG C. under constant pressure, and for the steam so superheated to be used.

    10.
    发明专利
    未知

    公开(公告)号：DD269374A5

    公开(公告)日：1989-06-28

    申请号：DD31403888

    申请日：1988-03-25

    Applicant: HOECHST AG

    Inventor： STAENDEKE HORST ,  THUEMMLER URSUS ,  ADAM WILHELM

    IPC: C01B25/00 ,  C08K9/02 ,  C08K9/08 ,  C01B25/023

    Abstract: Stabilized pulverulent red phosphorus consisting substantially of particles with a size of at most 2 mm, encapsulated in a thin layer of an oxidation stabilizer consisting of at least one scarcely water-soluble or water-insoluble metal hydroxide and a melamine/formaldehyde-polycondensation product.

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