A method for preparing unfired masonry from fresh electrolytic manganese slag

A technology for electrolytic manganese slag and masonry, which is applied in the fields of chemical industry, environmental protection, metallurgy, and building materials, can solve the problems of unreported industrialized technology, large differences in the physical and chemical properties of electrolytic manganese slag, and small amount of electrolytic manganese slag, and achieves The effect of promoting healthy development, low cost and reducing processing cost

Active Publication Date: 2021-12-21
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For the comprehensive utilization of electrolytic manganese slag, researchers at home and abroad have carried out the recovery and extraction of valuable metals from electrolytic manganese slag, the application of electrolytic manganese slag in the agricultural field, the production of cement retarder by electrolytic manganese slag, and the application of electrolytic manganese slag in paving materials. , the application of electrolytic manganese slag in wall materials, the role of electrolytic manganese slag in wastewater treatment, the preparation of unburned bricks and sintered bricks by electrolytic manganese slag, etc., but so far, no industrialized technology has been reported. The main reason is that the amount of electrolytic manganese slag used in the above research is not large, and the physical and chemical properties of electrolytic manganese slag vary greatly due to different ore sources. new way

Method used

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  • A method for preparing unfired masonry from fresh electrolytic manganese slag
  • A method for preparing unfired masonry from fresh electrolytic manganese slag

Examples

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Effect test

Embodiment 1

[0030] Example 1. A method for preparing unfired masonry from fresh electrolytic manganese slag, which is prepared according to the following steps;

[0031] a, take 500kg electrolytic manganese slag, use clean water to wash electrolytic manganese slag 3 times, get A product;

[0032] b. According to the weight of product A, add 1 part of product A to 3 parts of pretreatment liquid in parts by weight, the temperature of pretreatment is 20°C, and the time of pretreatment is 3 hours, then filter to obtain product B; The treatment solution contains sodium oxide, and the pH value of the pretreatment solution is 8;

[0033] c. According to the weight of product B, add 10% cement, 0.3% conditioner, 0.05% reinforcing agent and 25% water to product B by mass fraction, stir and mix to obtain product C; wherein the conditioner is red mud, Enhancer is diethylene glycol;

[0034] d. The product C is pressed into shape under a pressure of 5Mpa, sprayed with water and maintained for 25 d...

Embodiment 2

[0035] Example 2. A method for preparing unfired masonry from fresh electrolytic manganese slag, which is prepared according to the following steps;

[0036] a, get 500kg electrolytic manganese slag, use clear water to wash electrolytic manganese slag 4 times, get A product;

[0037] b. According to the weight of product A, in parts by weight, add 1 part of product A to 4 parts of pretreatment liquid, the temperature of pretreatment is 30 ℃, and the time of pretreatment is 15 hours, then filter to obtain product B; The treatment solution contains sodium oxide and magnesium oxide, and the pH value of the pretreatment solution is 9;

[0038] c. According to the weight of product B, by mass fraction, add 15% cement, 3% conditioner, 3% phosphogypsum, 0.1% reinforcing agent and 26% water to product B, stir and mix to obtain product C; The agent is red mud, and the enhancer is diethylene glycol;

[0039] d. Product C is pressed into shape under a pressure of 6Mpa, sprayed with wa...

Embodiment 3

[0040] Example 3. A method for preparing unfired masonry from fresh electrolytic manganese slag, which is prepared according to the following steps;

[0041] a, take 500kg electrolytic manganese slag, use clear water to wash electrolytic manganese slag 5 times, get A product;

[0042] b. According to the weight of product A, in parts by weight, add 1 part of product A to 5 parts of pretreatment liquid, the temperature of pretreatment is 45 ℃, and the time of pretreatment is 30 hours, then filter to obtain product B; The treatment solution contains sodium oxide, magnesium oxide and calcium oxide, and the pH value of the pretreatment solution is 10;

[0043] c. According to the weight of product B, add 20% cement, 6% conditioning agent, 7% phosphogypsum, 0.2% reinforcing agent and 27% water to product B, stir and mix to obtain product C; The agent is red mud, and the enhancer is diethylene glycol;

[0044] d. Product C is pressed into shape under a pressure of 7Mpa, sprayed w...

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Abstract

The invention discloses a method for preparing fire-free masonry from fresh electrolytic manganese slag. a. Take the electrolytic manganese slag, use clear water to clean the electrolytic manganese slag, and obtain product A; b, add product A to the pretreatment solution, filter after pretreatment, and obtain product B; c, add cement to product B, adjust and temper agent, phosphogypsum, reinforcing agent and water, stirred and mixed to obtain product C; d, pressing product C and maintaining it to obtain a finished product. The invention has the advantages of a large amount of electrolytic manganese slag, little negative impact on the existing electrolytic manganese production process, simple process, low cost, and the product can meet the production requirements of the process, actively promotes the healthy development of the manganese industry, and opens up new opportunities for the comprehensive utilization of manganese slag. beneficial effects of the pathway.

Description

technical field [0001] The invention relates to the fields of metallurgy, chemical industry, building materials, environmental protection and the like, in particular to the production of electrolytic manganese in the field of metallurgy. Background technique [0002] At present, my country's electrolytic manganese production capacity is mainly concentrated in Ningxia, Guizhou, Hunan, Chongqing, Guangxi, Xinjiang and other places. Except for the high-grade Ghanaian ore used by Ningxia Tianyuan Manganese Industry, most of the industry uses low-grade ore with Mn%=12-18% for production, and usually produces 7-9 tons of compound slag per ton of manganese metal. With the aggravation of ore dilution in some regions in China, the amount of manganese slag per ton has been increasing, and the amount of manganese slag produced per ton of a few enterprises has exceeded 10 tons. According to the production of electrolytic manganese metal in 2017, the annual output of slag in the country...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B28/14C04B18/14
CPCY02W30/91
Inventor 王家伟王海峰赵平源
Owner GUIZHOU UNIV
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