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Carbon black

A carbon black production technology, applied in the direction of fibrous fillers, etc., can solve the problem that carbon black cannot obtain electrical conductivity, and achieve the effect of improving electrical conductivity and fluidity

Active Publication Date: 2008-11-26
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] First, not only for the carbon black disclosed in JP-08-507555, but also for the carbon black used to add to the rubber, in order to ensure the affinity for the matrix rubber, the degassing process (1500°C x 30 minutes) was carried out. The amount of hydrogen increases to a certain extent, but such a carbon black with a large dehydrogenation amount at (1500°C x 30 minutes) cannot obtain good electrical conductivity

Method used

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Embodiment 1～4 and comparative example 1、2、4 and 5

[0135] Preparation of carbon black

[0136] Using the carbon black production facility shown in FIG. 1, carbon black was produced under the production conditions shown in Table 1 and furnace equipment conditions such as feedstock oil introduction length D and reaction stop length E. In addition, with respect to the furnace inner dimensions D1 to D3 and L1 of FIG. 1 , one of the following three types is used.

[0137] Type A: D1=1,100mmΦ, D2=175mmΦ, D3=400mmΦ, L1=3,300mm, D2′=190mmΦ

[0138] Type B: D1=500mmΦ, D2=55mmΦ, D3=200mmΦ, L1=3,200mm (D2'=D2)

[0139] Type C: D1=1,100mmΦ, D2=175mmΦ, D3=400mmΦ, L1=2,750mm (D2'=D2)

[0140] In addition, as the fuel of the high-temperature combustion gas stream, heavy oil was used in Examples 1 to 4 and Comparative Examples 4 and 5, and LNG (liquefied natural gas) was used in Comparative Examples 1 and 2. In addition, in Examples and Comparative Examples, the carbon black raw material (raw material oil) was creosote oil, and the furnace...

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Abstract

Provided is a carbon black which improves the electrical conductivity and flowability of a resin composition. Carbon black characterized by having the following characteristics: 24M4DBP absorption: At least 130 cm 3 / 100 g (1,500 DEG C 30 min) dehydrogenation amount: At most 1.2 mg / g rystallite size Lc: From 10 to 17AA More preferably, it has the following characteristics: itrogen adsorption specific surface area: from 150 to 300 m 2 / g Average particle diameter: from 14 to 24 nm TAB adsorption specific surface area: from 120 to 220 m 2 / g DBP absorption: from 150 to 400 cm 3 / 100 g oxygen-containing functional group density: at most 3 mol / m 2.

Description

technical field [0001] The present invention relates to a carbon black suitable for being added to a conductive resin composition, in particular, the present invention relates to an oil furnace carbon black produced by an oil furnace method. Background technique [0002] The equipment for producing carbon black by the oil furnace method has a first reaction zone, a second reaction zone and a third reaction zone. In the first reaction zone, the fuel is combusted to form a high temperature combustion gas stream. The second reaction zone is connected to the first reaction zone, into which a carbon black raw material hydrocarbon (hereinafter sometimes referred to as oil) is introduced to conduct a carbon black-forming reaction. The third reaction zone is connected to the second reaction zone and is equipped with cooling means to stop the reaction to form carbon black. [0003] In order to prepare carbon black with the carbon black manufacturing equipment, a high-temperature co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/48C09C1/50
Inventor 松木章浩金丸慎一福山裕见势信猛高村荣八
Owner MITSUBISHI RAYON CO LTD
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