Production method of pigment carbon black applied to leather color paste

A technology of pigment carbon black and production method, which is applied in the direction of fibrous filler, etc., can solve the problems of high impurity content of pigment carbon black, unstable dispersion of pigment carbon black, and reduction of non-carbon impurity content, etc., to achieve Improve the light transmittance, reduce the oil film on the particle surface, and facilitate large-scale industrial production

Active Publication Date: 2021-10-22
WUHAI BLACK CAT CARBON BLACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In actual production, the produced pigment carbon black has a high content of impurities, and impurities are likely to be generated during the production process. The residue content of 325 mesh sieve is high, and the content of heavy metals is high. Because the carbon black used in leather colorants requires high purity and blackness Carbon black with high index requirements, specific surface area and high activity, such as a pigment carbon black production system and its production process disclosed by the publication number CN106947299A with low impurity content. In the production process, the raw

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  • Production method of pigment carbon black applied to leather color paste

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Embodiment 1

[0030]The weight ratio of the amount of raw material oil to the amount of additive potassium hydroxide is 1200:0.02, the moisture content of the raw material oil is ≤1.0%, the density is 1.125g / cm³, the viscosity is 1.3, and the initial boiling point temperature is 218°C. The oil distillation rate is 96%.

[0031] Pigment carbon black product of the present invention adopts furnace process new process pigment carbon black production technology to be specific as follows:

[0032] 1) After the natural gas with a flow rate of 500Nm³ / h and a pressure of 65kpa is axially sent into the combustion chamber, the air is filtered and compressed to a pressure of 0.16Mpa by a Roots blower, and the flow rate after being heated to 580°C by a 650°C high-temperature air preheater is The hot air A of 5500Nm³ / h is mixed and fully combusted, the temperature of the combustion chamber is controlled at 1700°C, and the hot flue gas after combustion flows through the throat section of the reactor at h...

Embodiment 2

[0041] The weight ratio of the amount of raw material oil to the amount of additives is 1300:0.04, the moisture content of the raw material oil is ≤1%, the density is 1.128g / cm³, the viscosity is 1.3, and the initial boiling point temperature is 220°C. The raw material oil distillation rate 98%.

[0042] Pigment carbon black product of the present invention adopts furnace process new process pigment carbon black production technology to be specific as follows:

[0043] 1) After the natural gas with a flow rate of 545Nm³ / h and a pressure of 65kpa is axially sent into the combustion chamber, the air is filtered (the filter mesh diameter is less than 2 microns) and compressed by a Roots blower to a pressure of 0.17Mpa, and preheated by 650°C high-temperature air After the reactor is heated to 590°C, hot air A with a flow rate of 6000Nm³ / h is mixed and fully combusted. The temperature of the combustion chamber is controlled at 1730°C, and the hot flue gas after combustion flows th...

Embodiment 3

[0052] The weight ratio of the amount of raw material oil to the amount of additives is 1300:0.03, the moisture content of the raw material oil is ≤1%, the density is 1.130g / cm³, the viscosity is 1.3, and the initial boiling point temperature is 222°C. The raw material oil distillation rate 98%.

[0053] Pigment carbon black product of the present invention adopts furnace process new process pigment carbon black production technology to be specific as follows:

[0054] 1) After the natural gas with a flow rate of 564Nm³ / h and a pressure of 65kpa is axially sent into the combustion chamber, the air is filtered (the filter mesh diameter is less than 1 micron) and compressed by a Roots blower to a pressure of 0.17Mpa, and preheated by 650°C high-temperature air After the reactor is heated to 600°C, the source hot air with a flow rate of 6200Nm³ / h is mixed and fully combusted. The temperature of the combustion chamber is controlled at 1750°C, and the hot flue gas after combustion ...

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Abstract

The invention relates to the technical field of pigment carbon black, and discloses a production method of pigment carbon black applied to leather color paste. Natural gas serves as fuel, anthracene oil serves as a raw material, potassium hydroxide serves as an additive, the natural gas and hot air heated through a high-temperature air preheater are completely combusted in a combustion chamber to generate high-temperature combustion residual gas, and the additive and raw oil are fully mixed in a mixer and then sprayed into the high-temperature combustion residual gas through a raw oil gun. Under the action of thermal kinetic energy provided by high-temperature combustion residual gas, raw oil is cracked to generate carbon black, demineralized water is sprayed into high-temperature flue gas in a horizontal quenching section (vaporization) for direct cooling to terminate a carbon black generation reaction (main reaction), medium-pressure steam is sprayed in a vertical quenching section to perform an activation reaction (side reaction) on carbon black particles, and the carbon black obtained by the method disclosed by the invention has the characteristics of high purity, good blackness, strong covering power, easiness in dispersion compared with products of the same series, and the like.

Description

technical field [0001] The invention belongs to the technical field of pigment carbon black, and more specifically relates to a production method of pigment carbon black applied to leather color paste. Background technique [0002] At present, in terms of oil furnace pigment carbon black, through modification treatment, a series of new varieties of easily dispersible carbon black have been developed for the ink and coating industries, and have been popularized and applied. However, in terms of high-grade pigment carbon black varieties, there is still a big gap with foreign countries in terms of production technology, equipment level, energy saving and environmental protection. The output of high-quality pigment carbon black is small in my country, and the quality is unstable. Although some domestic carbon black companies have begun to lean towards the special-purpose carbon black industry, under this background, carbon black companies must develop new products, comply with ...

Claims

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Application Information

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IPC IPC(8): C09C1/50C09C1/56
CPCC09C1/50C09C1/56
Inventor 王强戚伦辉周奋金洪丽谢永刚陈忠斌
Owner WUHAI BLACK CAT CARBON BLACK
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