Refined acid production process

A production process and process technology, applied in the field of refined acid production process, can solve the problems of poor fluidity of niacin, uneven evaporation, high cost of U-shaped pipelines, etc., and achieve the effect of increasing the evaporation rate

Active Publication Date: 2019-03-08
LIANSHI NEW MATERIAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the prior art and solve the problems of high cost of U-shaped pipelines and uneven evaporation of niacin caused by poor fluidity in the niacin tank; the invention proposes a refined acid production process

Method used

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Embodiment approach

[0038] As an embodiment of the present invention, the fixing part 417 is an annular deflector 418; the annular deflector 418 is sleeved on the side wall of the No. 1 turntable, and the annular deflector 418 is installed on the niacin tank 1, the annular guide plate 418 is used to guide the flow direction of the steam downward. The steam will first blow down the niacin, thereby stirring the niacin below, and then the steam will float up to stir the niacin above, thus increasing the range of steam stirring and further improving the uniformity of niacin being evaporated.

[0039] As an embodiment of the present invention, the sides of the No. 1 disc 413 and the No. 2 disc 414 that are close to each other have a wave-shaped structure, and the wave-shaped structure can increase the contact area with the steam; When flowing between the disc 413 and the second disc 414, the heating speed of the first disc 413 and the second disc 414 is accelerated.

[0040] As an embodiment of the p...

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Abstract

The invention belongs to the technical field of sulfuric acid production, in particular to a refined acid production process. A sulfuric acid evaporator comprises a nicotinic acid tank, a water vaportank and a bracket, wherein the water vapor tank is arranged on the lower side of the nicotinic acid tank; the nicotinic acid tank is vertically arranged on the ground through the bracket; the insideof the water vapor tank is isolated into a steam bin and a condensate bin by an isolation plate; a steam inlet is formed in the side wall of the steam bin; a condensate outlet is formed in the bottomof the side wall of the condensate bin; a U-shaped tube bundle is arranged in the nicotinic acid tank; sulfuric acid can be diluted into sulfuric acid finished products with different concentrations by adding pure water, and the sulfuric acid finished products are sent into a cooling tower through a heat exchanger; the heat exchanger is used for preheating water in a heating furnace, and accordingly, cooling of diluted sulfuric acid can be accelerated while energy consumed by the heating furnace is reduced, and production speed of refined acid is increased.

Description

technical field [0001] The invention belongs to the technical field of sulfuric acid production, in particular to a refined acid production process. Background technique [0002] Sulfuric acid is an important basic chemical raw material and the basic raw material of the chemical industry. The output of sulfuric acid is one of the indicators of the production capacity of a country's chemical industry. Among them, refined sulfuric acid, as one of the fine chemicals, is widely used in electronic communication, medicine and other industries, and can also be used as a raw material for chemical reagents and batteries. Refined sulfuric acid is a colorless transparent oily liquid with strong oxidizing, water-absorbing, dehydrating and corrosive properties. SO in nicotinic acid 3 Gas evaporative separation is a step in the current process of producing refined acid, and the SO in niacin 3 Gas evaporative separation is to use sulfuric acid evaporator to heat and evaporate nicotinic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/90
CPCC01B17/90
Inventor 不公告发明人
Owner LIANSHI NEW MATERIAL CORP LTD
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