Method for making amino albumin powder capable of capturing formaldehyde

A technology of amino protein and manufacturing method, which is applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., can solve the problems of poor formaldehyde capture function, long reaction time, difficult control of reaction conditions, etc., and achieve environmental protection , low cost and simple process

Inactive Publication Date: 2010-12-22
才永欣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is a protein glue, its function of capturing formaldehyde is poor; its preparation method is enzymatic method, which has the disadvantages of long reaction time and difficult control of reaction conditions.

Method used

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  • Method for making amino albumin powder capable of capturing formaldehyde
  • Method for making amino albumin powder capable of capturing formaldehyde
  • Method for making amino albumin powder capable of capturing formaldehyde

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, make amino protein rubber powder with chicken feather as raw material:

[0022] Choose 500 kilograms of chicken feathers to make amino protein rubber powder as raw material, and its steps are as follows:

[0023] (1) Inject 4000 liters of water into a 5000 liter iron tank with stirring glass-lined steel, put in 500 kg of chicken feathers, stir slowly at 10-30 rpm, put the scouring wastewater into the waste liquid tank, and release impurities such as sand and soil from the sand discharge hole , Centrifuge the chicken feathers to dry, and the chicken feathers must be cleaned.

[0024] (2) Immerse 1 / 2 of the obtained product in step (1) in 0.8% NaOH aqueous solution, soak at room temperature for 48 hours, make the hair stems soft, and twist them into filaments by hand. Import the centrifuge to dry, and reuse the lye water to soften the chicken feathers.

[0025] (3) Inject 1,300 liters of 0.8% NaOH aqueous solution into a 2,000-liter jacketed enamel reactio...

Embodiment 2

[0033] Embodiment 2, manufacture amino protein glue with waste ox hair of tannery:

[0034] Choose 400 kilograms of leather factory waste cow hair to make amino protein glue, and its steps are as follows:

[0035] (1) Soak 200 kilograms of waste cow hair in 2.5% NaOH aqueous solution for 48 hours at room temperature until the cow hair swells, becomes thicker and softer. Dry it with a centrifuge and reuse the alkaline water to soften the hair.

[0036](2) Inject 1,200 liters of 2.5% NaOH aqueous solution into a 2,000-liter jacketed enamel reaction kettle, heat to 96-100° C. with jacket steam, and start stirring. Drop into 200 kilograms of unsoftened ox hairs, and insulate and stir until 80% of the ox hairs melt. Step (1) gain is dropped in the kettle, and the feeding hole is closed. Continue to insulate and stir, so that the ox hair in the kettle is all dissolved, and the solution presents a yellowish-brown viscous state, and this process needs 50 minutes. Heating was stopp...

Embodiment 3

[0043] Embodiment 3, manufacture amino protein glue powder with trotter shell:

[0044] Choose 200 kilograms of pig's hoof shells as raw material to make amino protein rubber powder, the steps are as follows:

[0045] (1) Wash away the impurities on the pig’s trotter shell with clean water, put the sewage into the neutralization sink, recycle and reuse, take out the pig’s trotter shell and dry it to clean the pig’s trotter shell.

[0046] (2) Immerse 1 / 2 of the obtained product in step (1) in 4% NaOH aqueous solution, soak at room temperature for 48 hours, make the hoof shell swell and become soft, import it into a centrifuge to dry it, and reuse the lye water to obtain a softened hoof shell.

[0047] (3) Inject 600 liters of 4% NaOH aqueous solution into a 1000-liter jacketed enamel reaction kettle, stir, steam heat, control the temperature at 96-100°C, and put the unsoftened 1 / 2 of step (1) into the kettle heat preservation for 60 minutes to melt 80% of the hoof shells, th...

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Abstract

The invention relates to a method for making amino albumin powder capable of capturing formaldehyde, which is characterized by comprising the steps of: cleaning, softening, hydrolyzing, neutralizing and sedimenting, dewatering and drying, crushing, ammonifying, preparing albumin powder, packaging, treating sewage and the like. An intermediate obtained in the emmonifying step is amino albumin which does not contain formaldehyde and has the function of capturing the formaldehyde and wide application range, therefore, the amino albumin can be used for replacing an aldehyde adhesive for preparing various boards, and the prepared boards have high strength and good weather resistance. The final product is the amino albumin powder which has the advantages of easy package, easy transportation, storage resistance, no degeneration, less consumption and the like except for the functions of the amino albumin. And the used raw materials are waste animal furs and hoof shells. The invention has the advantages of easy obtaining of the raw materials, low cost, simple process, and no pollutant emission during the production, and is beneficial to the environment protection.

Description

technical field [0001] The invention relates to the preparation of glue, in particular to a method for making amino protein glue powder capable of capturing formaldehyde by using waste hairs and hoof shells of various livestock and poultry as raw materials. Background technique [0002] For more than one hundred years, due to the application of urea-formaldehyde glue, phenol-formaldehyde glue, and melamine-formaldehyde glue, formaldehyde has become more and more serious in environmental pollution. Formaldehyde can cause human breathing difficulties, sore throat, watery eyes and other diseases. Severe formaldehyde poisoning can cause people to suffer from cancer, leukemia and so on. Formaldehyde is obviously harmful to the human body, but it cannot be replaced due to its wide application and low cost. Excessive discharge of formaldehyde is strictly prohibited in my country and most countries in the world. A large number of animal waste hair and hoof shells, such as: chicken...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04C09J9/00C05F1/00
CPCY02A40/20
Inventor 刘雷才永欣
Owner 才永欣
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