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Processing method for enhancing powdery paint through modified red mud

A powder coating and processing method technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve problems such as insufficient utilization of red mud, and achieve important economic and environmental benefits, good filling performance, and high filling amount. Effect

Active Publication Date: 2019-08-13
广西福宝信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The invention provides a processing method of using modified red mud to enhance powder coatings to solve the technical problem of insufficient utilization of existing red mud in indoor coatings

Method used

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  • Processing method for enhancing powdery paint through modified red mud
  • Processing method for enhancing powdery paint through modified red mud
  • Processing method for enhancing powdery paint through modified red mud

Examples

Experimental program
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preparation example Construction

[0045] The preparation method of described modified red mud powder comprises the following steps:

[0046] (1) Wash the red mud with water. After the red mud is tested to have a pH value of 8.2-9.6, it is filtered to obtain clean red mud. The clean red mud is dried until the water content is ≤ 5.2%;

[0047] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0048] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - sodium lauramide), the addition of the modifier I is 3.4-4.6% of the clean red mud powder mass, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethylene The mass ratio of sulfonic acid-dodecylamide) sodium is 6.3-10.8:3.4-7.6, the temperature is controlled at 56-65°C, and the mixture is stirred at a speed of 800-1000r / min for 20-30min to obtain mi...

Embodiment 1

[0083] A preparation method of modified red mud powder, comprising the following steps:

[0084] (1) The red mud discarded in the alumina production process is washed with water to remove the Na in the red mud 2 O and other water-soluble substances are washed away, and the washed red mud is tested to have a pH value of 8.9, then press-filtered to become clean red mud, and the clean red mud is dried to a water content of 5%;

[0085] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0086] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - lauramide) sodium composition, the addition of the modifier I is 4.2% of the clean red mud powder quality, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethanesulfonic acid - the mass ratio of sodium dodecylamide) is 9....

Embodiment 2

[0107] A preparation method of modified red mud powder, comprising the following steps:

[0108] (1) The red mud discarded in the alumina production process is washed with water to remove the Na in the red mud 2 O and other water-soluble substances are washed away, and the washed red mud is tested to have a pH value of 8.5, then press-filtered to become clean red mud, and the clean red mud is dried to a water content of 4.9%;

[0109] (2) ultrafine grinding the clean red mud prepared in step (1), and sieving to obtain a clean red mud powder larger than 300 meshes;

[0110] (3) Add modifier I to the clean red mud powder prepared in step (2), said modifier I is composed of diethanolamide stearic acid monoglyceride, ethylene-bis(N-ethanesulfonic acid - lauramide) sodium composition, the addition of the modifier I is 3.8% of the clean red mud powder quality, the diethanolamide monoglyceride stearate, ethylene-bis(N-ethanesulfonic acid - the mass ratio of sodium dodecylamide) is ...

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Abstract

The invention discloses a processing method for enhancing powdery paint through modified red mud. The method includes the following steps of firstly, preparing modified red mud powder, epoxy resin E-12, polyester resin, a flatting agent GLP588, benzoin, a polyoxyethylene polypropanolamine ether defoaming agent, fumed silica, lead chromate yellow PY-34, a dispersing agent NC and a sensitizer LD-608according to mass percentages, adding the materials into a mixer, and conducting pre-smashing and then mixing to prepare an evenly-mixed raw material; secondly, putting the evenly-mixed raw materialinto an extruder, conducting melt extrusion, tabletting and cooling, and then conducting smashing to form sheets; thirdly, putting the sheets obtained through smashing into a pulverizer to be pulverized, and conducting cyclone separating and screening to prepare the indoor powdery paint. The defects of utilizing existing red mud in paint are overcome, the aims of turning waste into wealth and realizing comprehensive utilization are realized, the new approach for preparing the indoor paint is provided, and important economic and environmental benefits are realized.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of powder coating preparation, and in particular relates to a processing method of using modified red mud to strengthen powder coating. [0003] 【Background technique】 [0004] Guangxi Pingguo Aluminum is known as the aluminum capital of China and is the main aluminum production base in China. It mainly uses local bauxite resources to produce alumina, with an annual production of 2.5 million tons of alumina and 3 million tons of red mud discharge. Today, 37.5 million Ten thousand tons of red mud tailings have piled up into mountains, and now the discharge is gradually increasing at a rate of 3 million tons per year, which not only causes a lot of financial, material and manpower to be spent on closed treatment, but also takes up a lot of local land resources to pile up red mud. Dam construction safety management is also very difficult. [0005] At present, due to the great difficulty in the comprehe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D7/62C09D7/61
CPCC08K2003/2206C08K2003/2227C08K2003/2241C08K2003/2272C08L2205/03C09D5/033C09D163/00C09D167/02C08L63/00C08L71/02C08K13/06C08K9/04C08K9/08C08K7/26C08K3/22C08K3/36C08L67/00
Inventor 王雄
Owner 广西福宝信科技有限公司
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