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Analysis method for calculating liquid weight

An analytical method and gravimetric technology, applied in the direction of weighing, using material absorption weighing, weighing equipment with special properties/forms, etc.

Inactive Publication Date: 2012-07-04
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the weighing problem of liquid material weight in the chemical reaction process, and provide a method for weighing liquid weight by analytical method

Method used

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  • Analysis method for calculating liquid weight
  • Analysis method for calculating liquid weight

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Experimental program
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Effect test

Embodiment 1

[0021] In the process of producing cobalt naphthenate, the solvent is No. 200 solvent gasoline, and the qualified content of cobalt in the product is 4%. After the production process was completed, through distillation and dehydration, the cobalt content was 4.36% (a%). After adding 30 kilograms (W) of No. 200 solvent gasoline, the result of the second analysis showed that the cobalt content was 4.11% (b%).

[0022] by formula Calculate, the material in the kettle is 493.2 kilograms (X), and the cobalt weight is 21.50 kilograms.

[0023] According to the weight of cobalt, it can be seen that the weight of the qualified product should be 537.5 kg. Owing to having added 30 kilograms of No. 200 solvent gasoline, the material weight in the kettle is 523.2 kilograms, and then adding 14.3 kilograms of No. 200 solvent gasoline can obtain 537.5 kilograms of qualified products.

Embodiment 2

[0025] According to embodiment 1, through distillation dehydration, cobalt content is 4.33%, after adding No. 200 solvent naphtha of 30 kilograms, the result of second analysis, cobalt content is 4.16%.

[0026] After calculation, the material in the kettle is 734.12 kilograms, and the cobalt weight is 31.79 kilograms.

[0027] According to the weight of cobalt, the weight of qualified product should be 794.75 kg. Owing to having added No. 200 solvent gasolines of 30 kilograms, the material weight in the kettle is 764.12 kilograms, then adding No. 200 solvent gasolines of 30.63 kilograms can obtain the qualified product of 794.75 kilograms.

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Abstract

An analysis method for calculating liquid weight comprises determining a percentage content a% of a component A in to-be-determined liquid material by a chemical analysis method; adding a solvent with a weight W into the liquid material, and determining the percentage content b% of the component A; and calculating the weight of the to-be-determined liquid material according to a formula. The chemical analysis method comprises volumetry, gravimetry, visible absorptiometry, ultraviolet absorptiometry, gas and liquid chromatography, atom absorption spectrophotometry, potentiometry and molecular fluorescence analysis. The analysis method in the invention adopts the chemical analysis method to directly calculate out the weight of liquid material instead of weighing and measuring a volume, and can be used for determining a weight of liquid during chemical production and batching and in irregular containers.

Description

technical field [0001] The invention belongs to the technical field of object weight weighing, in particular to weighing of liquid weight. Background technique [0002] The weight of the liquid can be obtained by weighing, another method is to measure the volume and calculate the weight from the specific gravity. These are two commonly used methods, but sometimes they are not convenient. For example, in a reaction kettle that is undergoing a reaction, due to the reaction process and various other reasons, the weight of the material in the kettle has changed, and the weight after the change is an unknown quantity. This situation makes it difficult to accurately add materials to the next reaction, so in this case, the weight of the materials in the kettle should be measured first. However, it is not convenient to use a scale to weigh and measure the volume at this time, because the temperature, odor and toxicity of the material are not suitable for weighing, and the irregula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/02G01G17/04
Inventor 栗方星
Owner NANKAI UNIV
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