CN102539268A - Analysis method for calculating liquid weight - Google Patents
Analysis method for calculating liquid weight Download PDFInfo
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- CN102539268A CN102539268A CN2011104402306A CN201110440230A CN102539268A CN 102539268 A CN102539268 A CN 102539268A CN 2011104402306 A CN2011104402306 A CN 2011104402306A CN 201110440230 A CN201110440230 A CN 201110440230A CN 102539268 A CN102539268 A CN 102539268A
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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
The invention belongs to the weighing in weight of object weighing technology field, particularly a kind of liquid weight.
Background technology
The weight of liquid can obtain through weighing, and another kind of method is a measurement volumes, according to the proportion calculated weight.This is two kinds of methods using always, but these two kinds of methods are but also inconvenient sometimes.In the agitated reactor such as ongoing reaction, because course of reaction and other a variety of causes, variation has taken place in the weight of the material in the still, and the weight after changing is a unknown number.This situation causes difficulty for next step reaction accurately adds materials, so in this case, at first should measure the weight of material in the still.Yet weigh with scale this moment and measurement volumes is not a method easily, because material temperature, smell and toxicity all have been not suitable for weighing, and the irregular shape of agitated reactor also is not suitable for measurement volumes.
Summary of the invention
The present invention seeks to solve the weighing problem of liquid material weight in the chemical reaction process, provide a kind of analytic approach to take by weighing the method for liquid weight.
Analytic approach provided by the invention takes by weighing the method for liquid weight, comprising:
1st, the percentage composition that adopts chemical analysis method to measure certain the composition A in the testing liquid material is a%;
2nd, in the 1st step liquid material, adding weight is the solvent of W, and the content of measuring composition A once more is b%;
3rd, can calculate the weight X of testing liquid material through following formula:
Described chemical analysis method comprises: volumetric analysis, gravimetry, visible absorption photometry, ultraviolet light absorption photometry, red, orange, green, blue, yellow (ROGBY) (gas phase and liquid phase), atomic absorption spectrophotometry, potentiometry and molecular fluorescent method.
Weighing principle of the present invention;
Fig. 1 is the agitated reactor that has material, supposes that the weight of the material that has in the still is X, and the percentage composition of measuring certain the composition A in the material in the still is a%.In still, adding weight is the solvent of W, and the content of measuring A once more is b%.Then can list following equation:
X×a％＝(X+W)×b％ (1)
Formula (1) left side is the weight of A composition in the material, and after the adding certain amount of solvent, the weight of A does not change in the material, so formula 1 can be set up.So have:
In the formula (2), W, a and b are known numbers, so just can calculate the weight X of material in the still.
Advantage of the present invention and good effect:
The inventive method adopts chemical analysis method, can directly calculate the weight of material in the still without weighing and measurement volumes.The present invention obtains the accurate content data of a composition through chemical analysis method in the material of unknown weight after; The content that adds this composition of certain amount of solvent change; Obtain an analysis result once more, just can by formula calculate the weight of unknown material through this method.
The present invention can be used for chemical process, blending process, and the measurement of the weight of the liquid in the various irregular containers.
Description of drawings
Fig. 1 is the agitated reactor that has material.
Embodiment
Embodiment 1:
In producing the cobalt naphthenate process, solvent is No. 200 industrial napthas, and the qualified content of cobalt is 4% in the product.After production run was accomplished, through distillation dehydration, cobalt content was 4.36% (a%), behind No. 200 industrial napthas of adding 30 kilograms (W), and the result who analyzes for the second time, cobalt content is 4.11% (b%).
Calculate through formula
; Getting the interior material of still is 493.2 kilograms (X), and weight of cobalt is 21.50 kilograms.
Weight according to cobalt can know that the weight that should obtain specification product is 537.5 kilograms.Because the weight of material in No. 200 industrial napthas that added 30 kilograms, still is 523.2 kilograms, No. 200 industrial napthas that add 14.3 kilograms again can obtain 537.5 kilograms specification product.
Embodiment 2:
According to embodiment 1, through distillation dehydration, cobalt content is 4.33%, add 30 kilograms No. 200 industrial napthas after, the result who analyzes for the second time, cobalt content is 4.16%.
Through calculating, material is 734.12 kilograms in the still, and weight of cobalt is 31.79 kilograms.
Weight according to cobalt can know that the weight that should obtain specification product is 794.75 kilograms.Because the weight of material in No. 200 industrial napthas that added 30 kilograms, still is 764.12 kilograms, No. 200 industrial napthas that add 30.63 kilograms again can obtain 794.75 kilograms specification product.
Claims (2)
1. an analytic approach takes by weighing the method for liquid weight, it is characterized in that this method comprises:
1st, the percentage composition that adopts chemical analysis method to measure certain the composition A in the testing liquid material is a%;
2nd, in the 1st step liquid material, adding weight is the solvent of W, and the content of measuring composition A once more is b%;
3rd, can calculate the weight X of testing liquid material through following formula:
2. method according to claim 1 is characterized in that described chemical analysis method comprises: volumetric analysis, gravimetry, visible absorption photometry, ultraviolet light absorption photometry, red, orange, green, blue, yellow (ROGBY), atomic absorption spectrophotometry, potentiometry and molecular fluorescent method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104402306A CN102539268A (en) | 2011-12-26 | 2011-12-26 | Analysis method for calculating liquid weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104402306A CN102539268A (en) | 2011-12-26 | 2011-12-26 | Analysis method for calculating liquid weight |
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| CN102539268A true CN102539268A (en) | 2012-07-04 |
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| CN2011104402306A Pending CN102539268A (en) | 2011-12-26 | 2011-12-26 | Analysis method for calculating liquid weight |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050241862A1 (en) * | 2002-08-16 | 2005-11-03 | Tsinghua University | Equipment for on-line measuring the weight of material |
| CN1847803A (en) * | 2005-11-01 | 2006-10-18 | 兰州理工大学 | On-line flowing liquid weight measuring system and method |
| US20080053211A1 (en) * | 2006-05-23 | 2008-03-06 | Mg 2 - S.R.I. | Apparatus for weighing liquid in a bottle, in particular a pharmaceutical bottle |
| CN101470062A (en) * | 2007-12-25 | 2009-07-01 | 江西铜业集团公司 | Method for fast measuring heterogeneous slurry concentration |
| CN101666742A (en) * | 2009-09-23 | 2010-03-10 | 西南化工研究设计院 | Treatment method of catalyst sample containing rhodium |
-
2011
- 2011-12-26 CN CN2011104402306A patent/CN102539268A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050241862A1 (en) * | 2002-08-16 | 2005-11-03 | Tsinghua University | Equipment for on-line measuring the weight of material |
| CN1847803A (en) * | 2005-11-01 | 2006-10-18 | 兰州理工大学 | On-line flowing liquid weight measuring system and method |
| US20080053211A1 (en) * | 2006-05-23 | 2008-03-06 | Mg 2 - S.R.I. | Apparatus for weighing liquid in a bottle, in particular a pharmaceutical bottle |
| CN101470062A (en) * | 2007-12-25 | 2009-07-01 | 江西铜业集团公司 | Method for fast measuring heterogeneous slurry concentration |
| CN101666742A (en) * | 2009-09-23 | 2010-03-10 | 西南化工研究设计院 | Treatment method of catalyst sample containing rhodium |
Non-Patent Citations (2)
| Title |
|---|
| 佚名: "六年级专题讲座（八） 浓度问题", 《浙江三算教学师资培训中心》, 6 December 2007 (2007-12-06), pages 32 * |
| 芦伟等: "正极材料LiFePO4中锂、铁、磷含量的测定", 《中国空间科学学会空间材料专业委员会2011学术交流会》, 31 December 2011 (2011-12-31), pages 209 - 213 * |
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Application publication date: 20120704 |