Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for detecting components of industrial ammonium sulfate product

A technology of ammonium sulfate and products, applied in the field of element detection and analysis, can solve the problems of long detection process, time-consuming and laborious ammonia distillation, secondary environmental pollution, etc., and achieve the effect of high accuracy and efficient and fast determination process

Inactive Publication Date: 2014-05-21
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In short, the existing testing technology must combine various traditional chemical and instrumental analysis methods to meet the quality detection requirements of ammonium root, ammonium sulfate, free sulfuric acid, iron, lead, arsenic and other impurity elements in ammonium sulfate samples. Digesting samples once and using completely different analytical techniques such as titration, photometry or ICP-OES to complete different component testing items, consumes more human resources and pharmaceutical reagents, and produces more test waste after testing. Secondary Environmental Pollution
In particular, key quality inspection indicators such as the content of ammonium sulfate and free sulfuric acid must rely on traditional manual chemical analysis methods. Airtightness, professional quality of operators, and ensuring smooth pipelines to avoid high-pressure gas explosions in glassware require high safety operations.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting components of industrial ammonium sulfate product
  • Method for detecting components of industrial ammonium sulfate product
  • Method for detecting components of industrial ammonium sulfate product

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] In an example, the ICP-OES is an iCAP6300 Inductively Coupled Plasma Atomic Emission Spectrometer from Thermo Fisher Corporation of the United States.

[0035] 1. Ammonium sulfate sample digestion preparation

[0036] Weigh 0.5g of ammonium sulfate sample, first wash the container wall with 5 mL of water, add 15 mL (1+4) dilute hydrochloric acid to heat and digest the sample at low temperature, then raise the temperature to boil the solution and keep it for 3 minutes, dilute with water to 100 mL after cooling Volumetric flask, used as the ammonium sulfate sample detection solution prepared by digestion to be tested. Among them, (1+4) dilute hydrochloric acid is prepared by mixing concentrated hydrochloric acid with a mass percentage concentration of 36% to 38% according to the ratio of 1 part of concentrated hydrochloric acid and 4 parts of water.

[0037] 2. Calibration curve series standard solutions

[0038] Calibration curve series standard solutions are digested ...

example 2

[0044] Except for the following difference, all the others adopt the same method as Example 1 to measure the ammonium sulfate sample of this example: take 1.0g of ammonium sulfate sample, add (1+4) dilute hydrochloric acid 20mL, boil for 5min, dilute Constant volume 200mL.

example 3

[0046] Except for the following differences, all the others adopt the same method as Example 1 to measure the ammonium sulfate sample of this example: take 0.6g of ammonium sulfate sample, add (1+4) dilute hydrochloric acid 18mL, boil for 4min, dilute Constant volume 150mL.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for detecting components of an industrial ammonium sulfate product. The method comprises the following steps: digesting a sample by using a diluted hydrochloric acid solution so as to form a solution to be detected; simultaneously determining the content of nitrogen, sulfur and impurity elements in the solution to be detected by adopting inductive coupling plasma atomic emission spectroscopy; respectively calculating to obtain the content of ammonium and ammonium sulfate in the sample according to the content of nitrogen and molecular formulas of ammonium and ammonium sulfate, calculating to obtain the content of sulfate radicals in ammonium sulfate molecules according to the content of ammonium sulfate in the sample and the molecular formula of the ammonium sulfate, calculating to obtain the content of total sulfate radicals in the sample according to the content of sulfur and the molecular formula of the sulfate radicals, and subtracting the content of the sulfate radicals in ammonium sulfate molecules from the content of the total sulfate radicals by minusing, thus obtaining the content of free sulfuric acid in the sample. The method has the advantages that the content of the ammonium, ammonium sulfate, free sulfuric acid and the impurity elements such as iron, lead, arsenic and chromium in the ammonium sulfate product can be simultaneously determined at a time, the accuracy is high, and the determination process has high efficiency and is fast.

Description

technical field [0001] The invention relates to the technical field of element detection and analysis, in particular to a method capable of simultaneously determining the content of ammonium root, ammonium sulfate, free sulfuric acid and impurity elements such as iron, lead, arsenic, chromium and the like in industrial ammonium sulfate products. Background technique [0002] Generally, industrial ammonium sulfate products (also referred to as ammonium sulfate products for short) can be produced by the neutralization reaction of ammonium hydroxide and sulfuric acid, or the ammonia gas in the steelmaking coke oven gas can be absorbed by sulfuric acid through the recovery method, or In the ammonia wet desulfurization process, ammonia water absorbs sulfur dioxide contained in various flue gases in metallurgical sintering, coal power, petrochemical and other industries as a by-product of environmental protection, emission reduction and purification measures. Ammonium sulfate has ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/71
Inventor 成勇彭慧仙袁金红
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com