A method for quickly determining the solid content of phosphoric acid by using a centrifuge

A rapid measurement and centrifuge technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of short measurement operation time, low product quality, adjustment lag, etc., and achieve short measurement operation time, simple operation process and easy operation The principle is easy to understand and the effect

Active Publication Date: 2022-03-11
GUIZHOU KAILIN GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the past, the management of the quality of ammonium phosphate products (nutrients, phosphoric acid solids affect the total nutrient level of the production products) did not have the requirements for the refined management of nutrient control predictive indicators, and the production raw material control indicators were adjusted only after the relevant data from the analysis room came out, resulting in The adjustment is seriously lagging behind, and the product quality is low. With the market's requirements for refined management of the quality and nutrient indicators of ammonium phosphate products, the production control and adjustment must be real-time and predictable, and the solid content of phosphoric acid must be grasped at any time. Therefore, it is necessary to find a The operation process is simple, it has universal operability, the determination operation time is short, and it can guide the production of the method for determining the solid content of phosphoric acid in time

Method used

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  • A method for quickly determining the solid content of phosphoric acid by using a centrifuge
  • A method for quickly determining the solid content of phosphoric acid by using a centrifuge
  • A method for quickly determining the solid content of phosphoric acid by using a centrifuge

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Experimental program
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Effect test

Embodiment 1

[0025] (1) Prepare 12 groups of phosphoric acid solutions with different solid gradients, the solid contents are respectively 0.4%, 1%, 2%, 3%, 4%, 5%, 6%, 8%, 10%, 11%, 12 %, 14%, and accurately measure the exact solid value of each solid-containing gradient phosphoric acid, measure 3 times, and then take the average value;

[0026] (2) For the phosphoric acid solution whose solid content has been accurately determined in step (1), the solid content of the centrifuge is determined. The amount of phosphoric acid added to each test tube is 12ml. The scale value of the test tube;

[0027] (3) Organize the experimental data of the centrifugal results of each group of centrifuges, carry out data analysis, and draw a standard curve diagram to form a centrifuge measurement test tube scale and a solid comparison table;

[0028] (4) Configure four types (clean acid: solid content less than 2%; muddy acid: solid content 2%-4%; silted acid: solid content 6%-8%; slag acid: solid content...

Embodiment 2

[0031] (1) prepare 10 groups of phosphoric acid solutions with different solid-containing gradients, the solid contents are respectively 0.4%, 1%, 2%, 4%, 6%, 8%, 10%, 11%, 12%, 14%, and Accurately measure the exact solid value of each solid-containing gradient phosphoric acid, measure 3 times, and then take the average value;

[0032] (2) For the phosphoric acid solution whose solid content has been accurately determined in step (1), the solid content of the centrifuge is measured. The amount of phosphoric acid added to each test tube is 10ml. The scale value of the test tube;

[0033] (3) Organize the experimental data of the centrifugal results of each group of centrifuges, carry out data analysis, and draw a standard curve diagram to form a centrifuge measurement test tube scale and a solid comparison table;

[0034] (4) Configure four types (clean acid: solid content less than 2%; muddy acid: solid content 2%-4%; silted acid: solid content 6%-8%; slag acid: solid content...

Embodiment 3

[0037] (1) Prepare 14 groups of phosphoric acid solutions with different solid gradients, the solid contents are 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11 %, 12%, 13%, 14%, and accurately measure the exact solid value of each solid-containing gradient phosphoric acid, measure 3 times, and then take the average value;

[0038] (2) For the phosphoric acid solution whose solid content has been accurately determined in step (1), the solid content of the centrifuge is measured. The amount of phosphoric acid added to each test tube is 15ml. The scale value of the test tube;

[0039] (3) Organize the experimental data of the centrifugal results of each group of centrifuges, carry out data analysis, and draw a standard curve diagram to form a centrifuge measurement test tube scale and a solid comparison table;

[0040] (4) Configure four types (clean acid: solid content less than 2%; muddy acid: solid content 2%-4%; silted acid: solid content 6%-8%; slag acid: solid content 10% -1...

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Abstract

The invention relates to the technical field of ammonium phosphate production, in particular to a method for quickly measuring the solid content of phosphoric acid by using a centrifuge. The present invention uses a centrifuge to measure phosphoric acid solutions with different solid-containing gradients, then compares it with the precise solid content of the phosphoric acid solution, draws a standard curve, and obtains the centrifuge measurement test tube scale and solid-containing comparison table. Carry out the centrifugation of the solid content of the phosphoric acid solution to be measured, and use the result obtained by centrifugation to measure the solid content of phosphoric acid with a comparison table, and then obtain the solid content of phosphoric acid. The operation time of the present invention can be completed within 30 minutes, greatly reducing the time required The solid measurement time can guide the adjustment and control of process production in a timely and effective manner. The centrifuge method for determining the solid content of phosphoric acid is simple in operation, the operation principle is easy to understand, and has universal operability. The measurement operation time is short, and the production can be guided in time. It is an efficient and fast method for determining the solid content of phosphoric acid.

Description

technical field [0001] The invention relates to the technical field of ammonium phosphate production, in particular to a method for quickly measuring the solid content of phosphoric acid by using a centrifuge. Background technique [0002] In the current ammonium phosphate production process, there is a problem that the accurate determination of the solid content of phosphoric acid in the laboratory after the completion of the phosphoric acid preparation of ammonium phosphate raw materials is too long, which cannot effectively guide production and has no predictive and guiding role in production control. [0003] At present, the general procedure of the method for determining the solid content of phosphoric acid in the laboratory is reagent preparation, sample weighing, sample mixing, crucible weighing, sample suction filtration, washing with industrial ethanol until it is neutral, drying in a drying oven, cooling in a dry cooler, weighing, and calculation. Solid content. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/00
CPCG01N19/00
Inventor 杨利孙伟东田其富甘长江王志华姜淋浩周小勇
Owner GUIZHOU KAILIN GRP CO LTD
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