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Heating curable and waterproof halogenation resistant magnesium oxychloride construction materials and manufacturing method thereof

A technology for heating and curing, building materials, used in ceramic products, solid waste management, climate sustainability, etc., can solve problems such as product performance differences, products prone to halogenation, frost and whitening, etc., to reduce dosage and shorten production. cycle, reducing the effect of returning to halogen

Inactive Publication Date: 2007-08-15
刘世权
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, first use cheap magnesium oxychloride and magnesium oxide to reflect and form a relatively stable multi-component crystalline phase double salt, but due to the raw material composition, content, the selection of the molar ratio of magnesium chloride, magnesium oxide and added water during the batching, The influence of curing conditions and other factors has caused great differences in the performance of the products, mainly due to poor water resistance, products are prone to halogenation, warping, deformation, and frosting and whitening. Unremitting efforts have been made to solve the problem, but it has not been satisfactorily resolved so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] High-strength, heat-curable, water-resistant and non-halogen-returning magnesium oxychloride cement and preparation of building exterior wall panels

[0048] Raw materials (KG): the percentage content is 80%-85% light-burned magnesium oxide 100, the percentage content ≥ 44% hexahydrate chloride 20, II grade fly ash 38, sulfuric acid and tailings reaction supernatant 18, appropriate amount of water, The foam made of rosin resin, the foam with a diameter of ≤1mm is 1.2 times the volume of the above raw material mixture; the weight ratio of the ferro-magnesian tailings and sulfuric acid is: 30% of the boron-magnesian tailings, 30% of the 30% sulfuric acid .

[0049]Preparation process: Weigh boron-magnesium-iron tailings and put them into the reaction tank, add sulfuric acid, stir and react with a stirrer for 8 hours, extract the supernatant according to the stated ratio, add light-burned magnesium oxide, magnesium chloride hexahydrate, II In the mixture of grade pulveriz...

Embodiment 2

[0051] Preparation of high-strength, heat-curable, water-resistant and non-halogen-returning magnesium oxychloride cement and building interior wall bricks

[0052] Raw materials (KG): the percentage content is 80%-85% light-burned magnesia 100, the percentage content ≥ 44% hexahydrate chloride 18, II grade fly ash 30, sulfuric acid and tailings reaction supernatant 15, appropriate amount of water, use The foam made of plant protein tea saponin, the foam with a diameter of ≤1 mm is 3.0 times the volume of the above raw material mixture; the weight ratio of the boron-magnesium tailings and sulfuric acid is: boron-magnesium tailings 25, 10% sulfuric acid 25.

[0053] Preparation process: Weigh boron-magnesium-iron tailings and put them into the reaction tank, add sulfuric acid, stir and react with a stirrer for 6 hours, extract the supernatant according to the stated ratio, add light-burned magnesium oxide, magnesium chloride hexahydrate, II In the mixture of grade pulverized c...

Embodiment 3

[0055] High-strength, heat-curable, water-resistant and non-halogen-returning magnesium oxychloride cement and preparation of building exterior wall panels

[0056] Raw materials (KG): the percentage content is 80%-85% light-burned magnesia 100, the percentage content ≥ 44% hexahydrate chloride 25, II grade fly ash 45, sulfuric acid and tailings reaction supernatant 20, water amount, ten The foam achieved by sodium dialkylbenzene sulfonate, the foam with a diameter of less than 1 mm is 1.5 times the volume of the above-mentioned raw material mixture; the weight ratio of the boron-magnesium tailings and sulfuric acid is: % sulfuric acid 35. The MgO / MgCl 2 The molar ratio is 13.9; the relative density of the magnesium chloride hexahydrate is 1.20.

[0057] Preparation process: Weigh boron-magnesium-iron tailings and put them into the reaction tank, add sulfuric acid, stir and react with a stirrer for 10 hours, extract the supernatant according to the stated ratio, add light-bu...

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PUM

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Abstract

The invention discloses a new typed heat solidifying and water-tolerant koenenite architectural material without returning halogen and making method, which comprises the following parts: 100g 80%-85% light-burnt magnesia, 18-25g not less than 44% magnesium chloride hexahydrate, 10-45g II-grade coal dust, 15-20g supernatant reacted by 25-35g sulfuric acid and 25-35g refuse, water, foam with grain size not more than 1mm.

Description

technical field [0001] The invention relates to a new type of magnesium oxychloride building material, in particular to a new type of magnesium oxychloride building material with high strength, heat-curable, water-resistant and non-halogen-returning, and a preparation method thereof. Background technique [0002] The main component of magnesium oxychloride cement (or magnesium cement) is formed by mixing magnesium chloride and magnesium oxide. With a history of more than one hundred years in the world, it is an air-hardening cementitious material. It can be hardened under normal temperature and pressure to form a very hard substance. Utilizing its hardening and gelling properties, it can be processed into various building materials and has broad application prospects. However, the magnesium oxychloride cement building materials produced in large quantities now, such as: partition wall panels, partition wall bricks, and exterior wall bricks for construction, generally have ...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B28/32C04B18/08C04B18/12
CPCY02W30/91
Inventor 刘世权
Owner 刘世权
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