Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of high-purity feed additive calcium propionate

A feed additive, calcium propionate technology, applied in the field of additive calcium propionate preparation, can solve the problems of CO2 and dust pollution, complicated process, high cost, etc., and achieve the effects of eliminating pollution, simplifying process and protecting the environment

Pending Publication Date: 2021-02-26
NANTONG ALCHEMY BIOTECH DEV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But in above-mentioned two kinds of methods, indirect method has adopted high-temperature calcining process, energy consumption is big, cost is high, and can produce a large amount of CO2 and dust pollution in calcining process, be the direct method reaction process of raw material with industrial calcium carbonate and must heat , the process is more complicated and the cost is higher

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A method for preparing a high-purity feed additive calcium propionate, comprising the following steps: (1) Pretreatment: Soak the collected eggshells in lye for 24 hours, rinse them with clean water, and remove the surface of the eggshells. attachments and impurities;

[0021] (2) Shell-membrane separation: add a separating agent to the eggshell, stir, place, pour out the upper solution, and recover it by suction filtration, and then add the recovered filtrate to the precipitate;

[0022] (3) Crush and sieve: Crush the eggshells with a grinder and sieve to make the fineness reach 100 mesh. The unpassed shell materials are crushed again and sieved until all pass through, and bagged for later use;

[0023] (4) Normal temperature and pressure reaction: Weigh an appropriate amount of eggshell powder into a beaker, add tap water, the liquid-solid ratio is 12:1, stir the shell powder solution at a constant speed, and slowly add propionic acid. After the reaction, add calcium ...

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 discloses a preparation method of a high-purity feed additive calcium propionate, and relates to the field of additive calcium propionate preparation methods. According to the technicalscheme, the preparation method is characterized by comprising the following steps: normal-temperature and normal-pressure reaction: weighing a proper amount of eggshell powder, putting into a beaker,adding tap water according to a specified solid-liquid ratio, stirring the eggshell powder solution at a constant speed, slowly adding propionic acid, after the reaction is finished, adding calcium hydroxide powder, and adjusting the pH of the reaction system. In the process of preparing the additive calcium propionate, the process is simplified, the cost is reduced, and the environment is protected.

Description

technical field [0001] The invention relates to the field of preparation methods of additive calcium propionate, more specifically, it relates to a preparation method of high-purity feed additive calcium propionate. Background technique [0002] At present, there are two types of calcium propionate preparation methods: indirect method and direct method. In the indirect method, limestone and eggshell rings are mainly used as raw materials, which are calcined at high temperature to make quicklime CaO, and then a certain amount of water is added to CaO. , to make milk of lime, slowly add propionic acid solution under constant stirring, continue to stir until the solution is clear, and obtain calcium propionate solution, after filtration, heat and concentrate the filtrate until viscous, and dry at 140°C for 4 h. A white crystalline anhydrous calcium propionate product is obtained; the direct method is to directly react propionic acid with industrial calcium carbonate ketone to p...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/41C07C53/122
CPCC07C51/412C07C53/122
Inventor 余鑫鹏陈磊姜维邦许卫东
Owner NANTONG ALCHEMY BIOTECH DEV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com