Online phosphorus and fluorine content measuring analyzer

A technology for online testing and fluorine content, applied in the field of analytical instruments, can solve the problems of high equipment cost, difficult management and maintenance, etc., and achieve the effect of low testing cost, accurate analysis results, and real-time control.

Inactive Publication Date: 2014-08-13
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The last three analysis methods are not widely used due to the high cost of equipment, difficult management and maintenance, etc.

Method used

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  • Online phosphorus and fluorine content measuring analyzer
  • Online phosphorus and fluorine content measuring analyzer

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Embodiment

[0030] like figure 2 As shown, the online test analyzer for phosphorus and fluorine content includes a dilution system 6 and a detection system 7; Inlet 14, recovered liquid outlet 15 and diluent outlet; the liquid inlet of the conveying device 2 is connected with the diluent outlet; the detection system 7 includes a sample mixing block 3 and an ion detection block 4; the sample mixing block 3 and ion The detection block 4 is pipe-connected; the sample mixing block 3 is pipe-connected with the liquid outlet of the delivery device 2 .

[0031] The dilution block 1 includes a primary dilution block 11 and a secondary dilution block 12, the delivery device 2 includes a primary delivery pump 21 and a secondary delivery pump 22, and the dilution outlet includes a primary dilution outlet 16 and The secondary dilution liquid outlet 17; the primary dilution block 11 has a primary liquid to be tested inlet 111, a primary deionized water inlet 112 and a primary recovery liquid outlet ...

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Abstract

The invention discloses an online phosphorus and fluorine content measuring analyzer which is capable of continuously and stably monitoring a phosphorus and fluorine ratio on line. The online phosphorus and fluorine content measuring analyzer comprises a diluting system and a detection system, wherein the diluting system comprises a diluting block and a conveying device; the diluting block is provided with a to-be-tested solution inlet, a deionized water inlet, a recycled solution outlet and a diluted solution outlet; a solution inlet of the conveying device is connected with the diluted solution outlet; the detection system comprises a sample mixing block and an ion detection block; the sample mixing block is connected with the ion detection block through a pipe; the sample mixing block is connected with a solution outlet of the conveying device through a pipe, and is provided with a standard solution inlet and an auxiliary testing solution inlet. The online phosphorus and fluorine content measuring analyzer can be used for performing continuous online detection on ion concentration in a solution to be tested, and immediate control is facilitated. The online phosphorus and fluorine content measuring analyzer is further provided with a control system, has a high automation degree in the whole detection process, and is low in detection cost, simple in operation process, stable in working, and high in detection precision.

Description

technical field [0001] The invention relates to an analysis instrument, in particular to an on-line test analyzer for simultaneous online and continuous detection of phosphorus and fluorine content in a sample. Background technique [0002] It is well known that currently 80% to 90% of the phosphoric acid products in industry come from the wet-process phosphoric acid process. Since the wet-process phosphoric acid contains a large amount of harmful impurities such as iron, aluminum and fluorine ions, it must be purified. In the production process of feed and calcium hydrogen phosphate, calcium hydroxide is used to adjust the pH value to purify wet-process phosphoric acid and remove a large amount of impurities such as iron, aluminum and fluorine ions. In order to make the final product quality qualified, it is necessary to control the ratio of phosphorus to fluorine in the purified acid obtained by neutralizing calcium hydroxide to be greater than 230. However, it is very di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/08
Inventor 王辛龙赵丽静张志业杨林
Owner SICHUAN UNIV
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