CN103663476B - Intermediate processing in a kind of white carbon black production - Google Patents

Intermediate processing in a kind of white carbon black production Download PDF

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Publication number
CN103663476B
CN103663476B CN201310709706.0A CN201310709706A CN103663476B CN 103663476 B CN103663476 B CN 103663476B CN 201310709706 A CN201310709706 A CN 201310709706A CN 103663476 B CN103663476 B CN 103663476B
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Prior art keywords
stillpot
carbon black
white carbon
temperature
processing
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CN201310709706.0A
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CN103663476A (en
Inventor
刘松林
何勇岗
汤仁恒
骆吉林
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GUIZHOU WENGFU LANTIAN FLUORIDE CHEMICALS CO Ltd
Wengfu Group Co Ltd
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GUIZHOU WENGFU LANTIAN FLUORIDE CHEMICALS CO Ltd
Wengfu Group Co Ltd
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Abstract

The invention discloses the intermediate processing in a kind of white carbon black production, comprise the following steps: a revert pipe is installed to stillpot B and stillpot A, install a pipeline to stillpot A from B stillpot circulating-pump outlet at ageing tank pump discharge; In process of production, the material of becoming reconciled in ageing tank is returned stillpot A, stillpot B by pump; Or the material of ageing tank is returned stillpot B, then the material of stillpot B is turned back to stillpot A; Stillpot temperature controls at 40 ~ 80 DEG C.The present invention can improve the oil-absorption(number) of product, reduces ammonia consumption, ensures quality product.

Description

Intermediate processing in a kind of white carbon black production
Technical field
The invention belongs to chemical technology field, relate in particular to the intermediate processing in a kind of white carbon black production.
Background technology
In current white carbon black production technique, the ammonium silicofluoride mixed liquid concentration entered by dissolution kettle and temperature are all higher, when the gas ammonia generation precipitin reaction of denseer comparatively high temps ammonium fluosilicate solution and high density, its reaction is comparatively violent, cause and too fastly complete reaction, simultaneous temperature control ratio is more difficult, causes crystallization meticulous, not easily form geode, cause surface-area to reduce, cause product oil-absorption(number) too low, ammonia consumption is higher, higher than design load more than 30%, quality product does not reach design requirements.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and a kind of oil-absorption(number) that can improve product of providing, reduce ammonia consumption, ensure the intermediate processing in the white carbon black production of quality product.
Intermediate processing in a kind of white carbon black production of the present invention, comprises the following steps:
(1) revert pipe is installed to stillpot B and stillpot A, install a pipeline to stillpot A from B stillpot circulating-pump outlet at ageing tank pump discharge;
(2) in process of production, the material of becoming reconciled in ageing tank is returned stillpot A, stillpot B by pump; Or the material of ageing tank is returned stillpot B, then the material of stillpot B is turned back to stillpot A; Stillpot temperature controls at 40 ~ 80 DEG C.
Intermediate processing in above-mentioned a kind of white carbon black production, wherein (2) step is specially: the ammonium silicofluoride from dissolution kettle enters settling system, when the liquid level of stillpot A reaches 80%, when the liquid level of stillpot B reaches 70%, open the valve of ageing tank revert pipe, to stillpot A and stillpot B returning charge, pass into ammonia to stillpot A and B simultaneously, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, temperature of reaction controls at 40 ~ 60 DEG C.
Intermediate processing in above-mentioned a kind of white carbon black production, wherein (2) step is specially: the ammonium silicofluoride from dissolution kettle enters settling system, when the liquid level of stillpot A reaches 80%, when the liquid level of stillpot B reaches 70%, open the valve of ageing tank revert pipe, to stillpot B returning charge, open the revert pipe valve of stillpot B, to stillpot A returning charge; Simultaneously pass into ammonia to stillpot A and B, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, and temperature of reaction controls at 40 ~ 60 DEG C.
The present invention compared with prior art, there is obvious beneficial effect, as can be known from the above technical solutions: the material of ageing tank is returned stillpot by the present invention, dilute the ammonium fluosilicate solution concentration from dissolution kettle, thus reduce the speed of reaction of ammonium silicofluoride and ammonia, reduce the violent intensity of its reaction, effectively can control the temperature of precipitin reaction at 40 ~ 80 DEG C, white carbon black is made to form large surface area in precipitation process, ensure the crystallization velocity of precipitin reaction, improve the oil-absorption(number) of product, reduce ammonia consumption, reduce about 50% than original, ensure quality product.
Below by way of embodiment, further illustrate beneficial effect of the present invention.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention;
Embodiment
Below in conjunction with preferred embodiment, to the intermediate processing in the white carbon black production proposed according to invention, its embodiment, structure, feature and method thereof, be described in detail as follows.
embodiment 1
An intermediate processing in white carbon black production, comprises the following steps:
(1) revert pipe is installed to stillpot B and stillpot A, install a pipeline to stillpot A from B stillpot circulating-pump outlet at ageing tank pump discharge;
(2) ammonium silicofluoride from dissolution kettle enters settling system, when the liquid level of stillpot A reaches 80%, when the liquid level of stillpot B reaches 70%, open the valve of ageing tank revert pipe, to stillpot A and stillpot B returning charge, pass into ammonia to stillpot A and B simultaneously, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, and temperature of reaction controls at 40 ~ 60 DEG C.
Reduced the concentration of ammonium silicofluoride in stillpot by aforesaid operations, reduce the violent degree of reaction, thus reach effectively its temperature of reaction of control and speed, make the oil-absorption(number) of white carbon black reach 2.0cm 3/ more than g, ammonia consumption reduces 50%, has saved cost in producing.
embodiment 2
An intermediate processing in white carbon black production, comprises the following steps:
(1) revert pipe is installed to stillpot B and stillpot A, install a pipeline to stillpot A from B stillpot circulating-pump outlet at ageing tank pump discharge;
(2) ammonium silicofluoride from dissolution kettle enters settling system, when the liquid level of stillpot A reaches 80%, when the liquid level of stillpot B reaches 70%, open the valve of ageing tank revert pipe, to stillpot B returning charge, open the revert pipe valve of stillpot B, to stillpot A returning charge; Simultaneously pass into ammonia to stillpot A and B, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, and temperature of reaction controls at 40 ~ 60 DEG C.
2.0cm is reached by the oil-absorption(number) of aforesaid operations white carbon black 3/ more than g.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification equivalent variations done above embodiment according to technical spirit of the present invention and modification, all still belong in the scope of technical solution of the present invention.

Claims (1)

1. the intermediate processing in white carbon black production, comprises the following steps:
(1) revert pipe is installed to stillpot B and stillpot A, install a pipeline to stillpot A from B stillpot circulating-pump outlet at ageing tank pump discharge;
(2) in process of production, the ammonium silicofluoride from dissolution kettle enters settling system, when the liquid level of stillpot A reaches 80%, when the liquid level of stillpot B reaches 70%, opens the valve of ageing tank revert pipe;
To stillpot A and stillpot B returning charge, simultaneously pass into ammonia to stillpot A and B, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, and temperature of reaction controls at 40 ~ 60 DEG C;
Or to stillpot B returning charge, open the revert pipe valve of stillpot B, to stillpot A returning charge; Simultaneously pass into ammonia to stillpot A and B, and the pH value adjusting stillpot A is to 8.0 ~ 8.5, temperature of reaction controls at 60 ~ 80 DEG C, pH value to 9.0 ~ 9.5 of stillpot B, and temperature of reaction controls at 40 ~ 60 DEG C.
CN201310709706.0A 2013-12-21 2013-12-21 Intermediate processing in a kind of white carbon black production Active CN103663476B (en)

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Application Number Priority Date Filing Date Title
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CN103663476A CN103663476A (en) 2014-03-26
CN103663476B true CN103663476B (en) 2016-03-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1363511A (en) * 2002-02-08 2002-08-14 夏克立 Process for preparing fluorine compound and SiO2 from sodium fluosilicate
CN101139094A (en) * 2007-08-24 2008-03-12 云南云天化国际化工股份有限公司 Method for preparing big-compensating forcing white carbon black and high concentration ammonium fluoride through aminating of fluosilicic acid
CN101269816A (en) * 2008-05-16 2008-09-24 夏克立 Method for producing fluorine series compounds and white carbon black
CN101798090A (en) * 2010-04-07 2010-08-11 清华大学 Method for preparing nanometer silicon dioxide
CN101941704A (en) * 2010-09-03 2011-01-12 吉林大学 New method for preparing silicon dioxide by utilizing rice hull ash
CN102491369A (en) * 2011-12-02 2012-06-13 瓮福(集团)有限责任公司 Method for producing ammonium fluoride by recovering fluorine resources

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1363511A (en) * 2002-02-08 2002-08-14 夏克立 Process for preparing fluorine compound and SiO2 from sodium fluosilicate
CN101139094A (en) * 2007-08-24 2008-03-12 云南云天化国际化工股份有限公司 Method for preparing big-compensating forcing white carbon black and high concentration ammonium fluoride through aminating of fluosilicic acid
CN101269816A (en) * 2008-05-16 2008-09-24 夏克立 Method for producing fluorine series compounds and white carbon black
CN101798090A (en) * 2010-04-07 2010-08-11 清华大学 Method for preparing nanometer silicon dioxide
CN101941704A (en) * 2010-09-03 2011-01-12 吉林大学 New method for preparing silicon dioxide by utilizing rice hull ash
CN102491369A (en) * 2011-12-02 2012-06-13 瓮福(集团)有限责任公司 Method for producing ammonium fluoride by recovering fluorine resources

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