公开(公告)号：CA1170820A

公开(公告)日：1984-07-17

申请号：CA389190

申请日：1981-11-02

Applicant: DEGUSSA

Inventor： ROTHBUEHR LOTHAR

IPC: C09C1/00 ,  B01J15/00 ,  C09C1/56

Abstract: OF THE DISLCOSURE The present invention provides a process for the after-treatment of powdery carbon black with an oxidation agent which is gaseous, vaporous or aerosol-like in order to convert carbon black with a non-polar surface into carbon black which has a polar surface and thereby to improve the compatibility of carbon black with polar binders for lacquers and printing inks, comprising introducing the powdery carbon black into a reaction zone, said reaction zone having an upper and a lower portion, introducing into the lower reaction zone an oxidation agent whereby said oxidation agent flows from the lowest part of the reaction zone up through the carbon black in said reaction zone, continuously agitating said carbon black in said reaction zone, said reaction zone being a vertical, cylindrical reactor, containing a shaft in the central axis of said reactor, said shaft being equipped with stirrer arms brushing the entire cylinder cross section in a substantially horizontal position, said arms being displaced in the manner of tiers over the height of the reactor and rotating with a speed such that the stirrer arm points move between 0.2 and 2.0 m/sec, whereby the volume of the oxidation agent stream is dimensioned so that the reaction temperature in the reactor remains below about 150.degree.C, after the carbon black reaches the desired degree of oxidation, removing the surplus of oxidation agent by flushing air while maintaining the above-mentioned stirring movement and recovering the treated carbon black product in a powdery form without compression or agglomeration of the carbon black.

公开(公告)号：DK147107B

公开(公告)日：1984-04-09

申请号：DK475077

申请日：1977-10-26

Applicant: DEGUSSA

Inventor： ROTHBUEHR LOTHAR ,  SCHAEFER HANS ,  EISENMENGER EDITH ,  DWOROWY LUTZ ,  FUCHS GUENTHER

IPC: C09D7/00 ,  C09C1/00 ,  C09C1/48 ,  C09C1/56 ,  C09D7/12 ,  C09D11/037 ,  C09D17/00

公开(公告)号：CA1137360A

公开(公告)日：1982-12-14

申请号：CA347476

申请日：1980-03-12

Applicant: DEGUSSA

Inventor： KREHER ALFONS ,  KUEHNER GERHARD ,  ROTHBUEHR LOTHAR ,  TUERK GUENTER ,  WOLFF SIEGFRIED

IPC: C08K7/00 ,  B01J2/10 ,  C08K3/04 ,  C08K7/16 ,  C08L7/00 ,  C08L21/00 ,  C09C1/00 ,  C09C1/58 ,  C08K9/02 ,  C08J3/22

Abstract: Mixed granulates of carbon black and bright filler are produced by forming beads from carbon black and an aqueous dispersion of a bright filler, for example, precipitated silica, in a spiked screw granulator. The mixed granulate thus obtained has an excellent fluidity and dispersibility in rubber.

公开(公告)号：DD155996A5

公开(公告)日：1982-07-21

申请号：DD22730481

申请日：1981-01-29

Applicant: DEGUSSA

Inventor： KUEHNER GERHARD ,  WOLFF SIEGFRIED ,  ROTHBUEHR LOTHAR

IPC: C08K9/00 ,  B29B15/00 ,  B29C55/00 ,  B29C65/00 ,  B29C65/70 ,  C08J5/04 ,  C08J5/10 ,  C08K3/00 ,  C08K3/02 ,  C08K3/04 ,  C08K5/00 ,  C08K5/13 ,  C08K9/02 ,  C08K9/04 ,  C08L7/00 ,  C08L21/00 ,  C08L67/00 ,  C08L77/00 ,  C08K5/05

Abstract: There is prepared a homogeneous mixture of 95 to 30% carbon black and 5 to 70% resorcinol. The resorcinol preferably either has an average particle size of 0.01 to 0.4 mm or is broken down to that size. The product is employed in rubber mixture to improve the adhesion of rubber vulcanizates to metal, textile fibers, glass fibers, or their structures.

公开(公告)号：CS204038B2

公开(公告)日：1981-03-31

申请号：CS684178

申请日：1978-10-20

Applicant: DEGUSSA

Inventor： WOLFF SIEGFRIED ,  ROTHBUEHR LOTHAR

IPC: C08L7/00 ,  C07F7/18 ,  C08J3/22 ,  C08K3/04 ,  C08K5/00 ,  C08K5/548 ,  C08L9/00 ,  C08L21/00 ,  C08K9/06

公开(公告)号：NO143463C

公开(公告)日：1981-02-18

申请号：NO774064

申请日：1977-11-28

Applicant: DEGUSSA

Inventor： EISENMENGER EDITH ,  KUEHNER GERHARD ,  ROTHBUEHR LOTHAR ,  SCHAEFER HANS

IPC: C09C1/48 ,  C09D7/00 ,  C09C1/50 ,  C09C1/56 ,  C09D7/12 ,  C09D17/00

Abstract: There is prepared carbon black having the following properties: Primary particle size nm 35-120 BET surface area m2/g 10-50 Iodine adsorption mg/g 10-55 Volatile/content % 2-8 pH value 3-6 Acidity ml n/10 acid 2-16 per 100 grams of carbon black DBP number ml/100 grams 40-140 The carbon black is useful in producing gray lacquers, multi-colored lacquers and in making low viscosity and storage stable preliminary pastes suitable for use in lacquers.

公开(公告)号：NO143463B

公开(公告)日：1980-11-10

申请号：NO774064

申请日：1977-11-28

Applicant: DEGUSSA

Inventor： EISENMENGER EDITH ,  KUEHNER GERHARD ,  ROTHBUEHR LOTHAR ,  SCHAEFER HANS

IPC: C09C1/48 ,  C09D7/00 ,  C09C1/50 ,  C09C1/56 ,  C09D7/12 ,  C09D17/00

Abstract: There is prepared carbon black having the following properties: Primary particle size nm 35-120 BET surface area m2/g 10-50 Iodine adsorption mg/g 10-55 Volatile/content % 2-8 pH value 3-6 Acidity ml n/10 acid 2-16 per 100 grams of carbon black DBP number ml/100 grams 40-140 The carbon black is useful in producing gray lacquers, multi-colored lacquers and in making low viscosity and storage stable preliminary pastes suitable for use in lacquers.

公开(公告)号：CA1084670A

公开(公告)日：1980-09-02

申请号：CA256625

申请日：1976-07-08

Applicant: DEGUSSA

Inventor： ROTHBUEHR LOTHAR ,  VOLL MANFRED

IPC: C09C1/00 ,  C09C1/50 ,  F27B17/00

Abstract: The present invention provides in a process for the preparation of furnace process carbon blacks by pyrolytic decomposition of a primary compound used in carbon black preparation comprising oxidising a fuel in a combustion chamber to generate a stream of hot combustion gases, passing of the gas stream into a mixing chamber which mixing chamber is narrower than said combustion chamber, introducing said primary compound into said mixing chamber, passing the resulting mixture forwardly into a reaction chamber which reaction chamber is wider than said mixing chamber and quenching the reaction mixture, the improvement in which the stream of hot combustion gases is passed through an annular channel into the mixing chamber or is passed into a mixing chamber which is in the form of an annular channel, the primary compound is injected from the center in an outward direction into said mixing chamber or said annular channel. The present invention also provides a device for the preparation of furnace process carbon stacks by pyrolytic decomposition comprising a chamber for the combustion of a fuel in an oxygen containing gas, a mixing chamber connected to said combustion chamber, said mixing chamber being substantially narrower than said combustion chamber, said mixing chamber being in the form of annular channel or has an annular channel between itself and said combustion chamber, a reaction chamber connected to said mixing chamber, said reaction chamber being wider than said mixing chamber, and an atomizer unit for the primary compound use in carbon black preparation with the nozzles directing the flow of said primary compound for the center in an outward direction, said atomizer nozzles being located upstream of said mixing chamber and downstream of said annular channel, or in said annular channel or in said mixing chamber in the form of an annular channel.

公开(公告)号：NO774064L

公开(公告)日：1978-07-13

申请号：NO774064

申请日：1977-11-28

Applicant: DEGUSSA

Inventor： EISENMENGER EDITH ,  KUEHNER GERHARD ,  ROTHBUEHR LOTHAR ,  SCHAEFER HANS

IPC: C09C1/48 ,  C09D7/00 ,  C09C1/50 ,  C09C1/56 ,  C09D7/12 ,  C09D17/00 ,  C09C

Abstract: There is prepared carbon black having the following properties: Primary particle size nm 35-120 BET surface area m2/g 10-50 Iodine adsorption mg/g 10-55 Volatile/content % 2-8 pH value 3-6 Acidity ml n/10 acid 2-16 per 100 grams of carbon black DBP number ml/100 grams 40-140 The carbon black is useful in producing gray lacquers, multi-colored lacquers and in making low viscosity and storage stable preliminary pastes suitable for use in lacquers.