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Method for preparing supper clean, and high pure reagent of acid and rectifier unit

A reagent and net height technology, applied in fractionation, chlorine/hydrogen chloride purification, sulfur trioxide/sulfuric acid, etc., can solve the problem of small occupied space, and achieve the effect of small occupied space, strong matching, and increased output

Inactive Publication Date: 2005-01-12
冯留启
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Problems solved by technology

[0005] Provide a method for preparing ultra-clean and high-purity reagent acid and its rectification device, adopt the principle of rectification to solve the problem that it is impossible or difficult to produce ultra-clean and high-purity reagent acid in a continuous scale at present, and it is easy to implement, simple and convenient to operate, Continuous large-scale production, stable and reliable product quality, high efficiency, high yield, strong matching, small footprint, safety and environmental protection

Method used

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  • Method for preparing supper clean, and high pure reagent of acid and rectifier unit
  • Method for preparing supper clean, and high pure reagent of acid and rectifier unit
  • Method for preparing supper clean, and high pure reagent of acid and rectifier unit

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Embodiment Construction

[0029] Further explain in detail in conjunction with accompanying drawings;

[0030] As shown in Figure 1, the raw material liquid 1 is preheated by the overhead distillate of the stab distillation tower 11 through the preheater 5, and then continuously enters the still 7, is heated to boiling by the coil heater 8, evaporates, and the steam rises and enters the packing successively. The tower 9 and the stab distillation tower 11 directly connected in series, the steam repeatedly undergoes partial condensation, partial vaporization reflux in the tower, and repeated close contact between the gas and liquid phases to perform mass exchange between the two phases, thereby achieving The purpose of separating the final product in the middle, and discharge the distillate from the top of the decapitation column 11 in a gaseous state, the distillate enters the condenser 14 after the preheater 5, and is condensed into a liquid product after being indirectly cooled by water, and then furth...

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Abstract

A process for preparing the high-purity reagent acid by use of a rectifying equipment is disclosed. said rectifying tower is composed of lower filler tower and upper thorn-type distilling tower. Said process includes such steps as automatically preheating raw material, coming in distilling still, heating by coiled quartz tube is said distilling still, rectifying in rectifying tower, preheating, and condensing to obtain liquid product.

Description

technical field [0001] The invention belongs to the field of chemical production, and relates to a method for preparing ultra-clean and high-purity reagent acid and a rectifying device thereof. Background technique [0002] Common reagent acids in the prior art, especially common reagents hydrochloric acid and sulfuric acid, are mostly prepared by relatively simple distillation method with industrial acid or so-called "waste acid". For intermittent producers, even just use a large glass bottle as a distillation pot, conduct distillation with indirect heating of an electric furnace or a coal furnace, and recover the distillate by simple water condensation. The defects of this method are obvious: unsafe, poor quality No guarantee, low production efficiency and serious pollution; there are also simple distillation methods and devices that have a long process suitable for continuous production and are safe and easy to control, low energy consumption, non-polluting, and stable in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/16C01B7/07C01B17/90
Inventor 冯留启
Owner 冯留启
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