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

Preparation method of feed-grade calcium formate

A calcium formate, feed-grade technology, applied in the agricultural field, can solve the problems of poor filtration effect, poor capture effect, complicated process, etc.

Pending Publication Date: 2022-06-03
杨昌利
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The precipitation pH value of calcium formate prepared by prior art and patent is high, and the filtration effect is poor, and Ca 2+ The capture effect is not good; due to excessive heavy metals, it cannot reach the level of feed grade, and the existing technology is complicated, inconvenient to operate, and high in cost.

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
  • Preparation method of feed-grade calcium formate
  • Preparation method of feed-grade calcium formate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of feed grade calcium formate, the operation steps are:

[0033] 110g of formic acid was added to the reactor, and 100g of calcium carbonate powder was added while stirring; after 1h of reaction, lime milk was added to adjust the pH to 7-8, and the temperature was kept for 1h; then 2g of precipitant was added for precipitation, and filtered; Centrifugal separation and drying to obtain calcium formate; the mother liquor is recycled.

[0034] The mass concentration of the formic acid is 40%.

[0035] The calcium carbonate powder is put into batches to make the reaction proceed smoothly, so as to prevent the reaction liquid from overflowing the reaction tank and reduce the loss of formic acid.

[0036] The reaction temperature was at 85°C.

[0037] The drying temperature was 75°C.

[0038] The preparation method of described precipitant is:

[0039] 13g of aluminum acrylate, 100g of toluene, 10g of vinylmethylbis(butanone oxime) silane, 0.02g of KA...

Embodiment 2

[0045] A preparation method of feed grade calcium formate, the operation steps are:

[0046] 115g of formic acid was added to the reactor, and 100g of calcium carbonate powder was added while stirring; after 1.5h of reaction, lime milk was added to adjust the pH to 7-8, and the temperature was kept for 1.5h; then 3g of precipitant was added for precipitation, and filtered; the filtrate was concentrated Crystallization, centrifugal separation, and drying to obtain calcium formate; the mother liquor is recycled.

[0047] The mass concentration of the formic acid was 44%.

[0048] The calcium carbonate powder is put into batches to make the reaction proceed smoothly, so as to prevent the reaction liquid from overflowing the reaction tank and reduce the loss of formic acid.

[0049] The reaction temperature was at 88°C.

[0050] The drying temperature was 78°C.

[0051] The preparation method of described precipitant is:

[0052] 15g of aluminum acrylate, 140g of toluene, 12g of...

Embodiment 3

[0058] A preparation method of feed grade calcium formate, the operation steps are:

[0059] 118g of formic acid was added to the reactor, and 100g of calcium carbonate powder was added while stirring; after 1.5h of reaction, 18g of lime milk was added to adjust the pH to 7-8, and the temperature was kept for 2.5h; then 5g of precipitant was added for precipitation, and the filtrate was filtered; Concentrating and crystallizing, centrifuging and drying to obtain calcium formate; the mother liquor is recycled.

[0060] The mass concentration of the formic acid was 46%.

[0061] Described formic acid and calcium carbonate, the precipitant feeding amount is 1.18:1:0.05 by mass ratio.

[0062] The calcium carbonate powder is put into batches to make the reaction proceed smoothly, so as to prevent the reaction liquid from overflowing the reaction tank and reduce the loss of formic acid.

[0063] The reaction temperature was at 93°C.

[0064] The drying temperature was 82°C.

[...

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 relates to the field of agriculture, in particular to a preparation method of feed-grade calcium formate. Adding formic acid into the reactor, and adding calcium carbonate powder while stirring; after reacting for 1-2 hours, adding lime milk to adjust the pH value to 7-8, and keeping the temperature for 1-3 hours; then adding a precipitant for precipitation, and filtering; concentrating, crystallizing, centrifugally separating and drying the filtrate to obtain calcium formate; compared with a traditional treatment method, the novel sulfur precipitator adopted in the method has the advantages that the precipitation pH value is lower, filtration is easier, and the Ca < 2 + > trapping effect is better; the method is simple in process, convenient to operate and low in cost, and has remarkable ecological benefits and wide market development prospects.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a preparation method of feed-grade calcium formate. Background technique [0002] When organic acid is used in feed or mixed into premix, its acidity can easily lead to the loss of vitamins in feed, thus greatly limiting its application in feed. Calcium formate can completely overcome these shortcomings, the product is a calcium salt containing formic acid [(CHO 2 ) 2 Ca], white free-flowing crystalline or powder, which contains 31% calcium and 69% formic acid. Due to its neutral pH (pH 7.3-7.6 in a 10% aqueous solution) and low moisture content (up to 0.5%), there is no vitamin loss when calcium formate is incorporated into additive premixes , and can separate free formic acid under the action of gastric acid, effectively reduce the pH value in the stomach, and play a positive role in maintaining proper acidity in the gastrointestinal tract. In addition, due to the high melting po...

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): C07C51/41C07C51/50C07C53/06A23K20/105A23K20/24A23K50/30A23K50/60A61K31/19A61P1/14C08G83/00
CPCC07C51/412C07C51/50A23K20/105A23K20/24A23K50/60A23K50/30A61K31/19A61P1/14C08G83/003C07C53/06Y02P20/584
Inventor 杨昌利雷海艳雷柯柯
Owner 杨昌利
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