阅读说明：本技术 一种基于磷石膏的透明玻璃及其制备方法 (Phosphogypsum-based transparent glass and preparation method thereof ) 是由 杨梅香 孙永松 徐敏 陈静 简超 赵英 张悄 汪念念 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种基于磷石膏的透明玻璃及其制备方法,按重量份计,包括有磷石膏20-40份、煤粉1.2-2.2份、K-2CO-310-20份和SiO-240-80份。制备步骤为：1)将磷石膏、煤粉、K-2CO-3和SiO-2一起放入研磨机中研磨均匀,得粉体；2)将步骤1)所制粉体转移至坩埚中,然后移入加热炉中于1100-1300℃煅烧2-6h,然后降温至350-450℃后取出,于室温下放置25-45min后成型,即得所述透明玻璃。本发明的透明玻璃成本较低,制备工艺简单,具有易于工业化实施以及能够降低磷石膏带来的环境污染的问题的特点。(The invention discloses a phosphogypsum-based transparent glass and a preparation method thereof, wherein the glass comprises 20-40 parts by weight of phosphogypsum, 1.2-2.2 parts by weight of coal powder and K 2 CO 3 10-20 parts of SiO 2 40-80 parts. The preparation steps are as follows: 1) mixing phosphogypsum, coal powder and K 2 CO 3 And SiO 2 Putting the mixture into a grinding machine to be uniformly ground to obtain powder; 2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 2-6h at the temperature of 1100-1300 ℃, then cooling to the temperature of 350-450 ℃, taking out the powder, standing for 25-45min at room temperature, and then forming to obtain the powderAnd (4) transparent glass. The transparent glass has the characteristics of low cost, simple preparation process, easy industrial implementation and capability of reducing the problem of environmental pollution caused by phosphogypsum.)

1. The phosphogypsum-based transparent glass is characterized by comprising 20-40 parts by weight of phosphogypsum, 1.2-2.2 parts by weight of coal powder and K₂CO₃10-20 parts of SiO₂40-80 parts.

2. The phosphogypsum-based transparent glass according to claim 1, which comprises 25-35 parts of phosphogypsum, 1.5-1.9 parts of coal powder and K by weight₂CO₃12-18 parts of SiO₂50-70 parts.

3. The phosphogypsum-based transparent glass according to claim 2, which is characterized by comprising 30 parts of phosphogypsum, 1.7 parts of coal powder and K by weight₂CO₃15 parts of SiO₂60 parts.

4. A method for the preparation of phosphogypsum-based transparent glass according to any of claims 1-3, characterized in that it comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 2-6h at the temperature of 1100-.

5. The method for the preparation of phosphogypsum-based transparent glass according to claim 4, characterized in that: the calcination temperature was 1200 ℃.

6. The method for the preparation of phosphogypsum-based transparent glass according to claim 4, characterized in that: the calcining time of the step 2) is 4 h.

7. The method for the preparation of phosphogypsum-based transparent glass according to claim 4, characterized in that: and 2) naturally cooling.

8. The method for the preparation of phosphogypsum-based transparent glass according to claim 4, characterized in that: the temperature of the cooled step 2) is 400 ℃.

9. The method for the preparation of phosphogypsum-based transparent glass according to claim 4, characterized in that: the standing time at room temperature in the step 2) is 35 min.

Technical Field

The invention relates to glass and a preparation method thereof, in particular to phosphogypsum-based transparent glass and a preparation method thereof.

Background

Transparent glass is a non-old popular color, pure and mysterious beauty, and can not be replaced forever, and transparent glass is used as a low-tone and excellent member in glass families, and is always the choice pursued by designers in various places and is good for use. However, the cost of transparent glass is relatively high due to the limitations of process conditions and raw materials.

Phosphogypsum is industrial waste residue discharged in the wet-process production of phosphoric acid, and cannot be directly used due to the content of soluble phosphorus impurities. The phosphorus component in the phosphogypsum mainly has three forms of soluble phosphorus, eutectic phosphorus and precipitated phosphorus, the soluble phosphorus has the greatest influence on the performance, the phosphogypsum delays the setting and hardening of cement and building gypsum and reduces the strength of a hardened body, and the influence of the soluble phosphorus is generally eliminated by water washing purification or lime neutralization pretreatment at home and abroad. At present, the utilization approaches of domestic phosphogypsum are mainly concentrated in the building material industry, industry and agriculture, but no report about the preparation of transparent glass by using phosphogypsum industrial waste residues as raw materials exists.

Therefore, if the phosphogypsum can be combined with the preparation of the transparent glass, the cost of the transparent glass can be reduced, and simultaneously, the consumption and the utilization of the phosphogypsum can be promoted.

Disclosure of Invention

The invention aims to provide phosphogypsum-based transparent glass and a preparation method thereof. The transparent glass has the characteristics of low cost, simple preparation process, easy industrial implementation and capability of reducing the problem of environmental pollution caused by phosphogypsum.

The technical scheme of the invention is as follows: the transparent glass based on phosphogypsum comprises, by weight, 20-40 parts of phosphogypsum, 1.2-2.2 parts of coal powder and K₂CO₃10-20 parts of SiO₂40-80 parts.

The transparent glass based on the phosphogypsum comprises, by weight, 25-35 parts of phosphogypsum, 1.5-1.9 parts of coal powder and K₂CO₃12-18 parts of SiO₂50-70 parts.

The transparent glass based on the phosphogypsum comprises 30 parts of phosphogypsum, 1.7 parts of coal powder and K₂CO₃15 parts of SiO₂60 parts.

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 2-6h at the temperature of 1100-.

In the preparation method of the transparent glass based on phosphogypsum, the calcination temperature is 1200 ℃.

In the preparation method of the phosphogypsum-based transparent glass, the calcination time in the step 2) is 4 hours.

In the preparation method of the phosphogypsum-based transparent glass, the cooling in the step 2) is natural cooling.

In the preparation method of the phosphogypsum-based transparent glass, the temperature of the cooled transparent glass in the step 2) is 400 ℃.

In the preparation method of the phosphogypsum-based transparent glass, the standing time at room temperature in the step 2) is 35 min.

The invention has the advantages of

The transparent glass takes the phosphogypsum as one of the main raw materials, so that the phosphogypsum is changed into valuable, the manufacturing cost of the transparent glass is reduced, meanwhile, the industrial application of the phosphogypsum is expanded, and the transparent glass has a better promotion effect on reducing the problem of environmental pollution caused by phosphogypsum.

Meanwhile, the transparent glass of the invention only needs to be formed by grinding and calcining the raw materials and then cooling, has simple preparation process, is easy for industrial implementation and can be popularized in a large range.

Drawings

FIG. 1 is a transparent glass prepared according to an embodiment of the present invention;

FIG. 2 is a powder of the invention after mixing of the raw materials;

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Examples of the invention

Example 1

The transparent glass based on phosphogypsum comprises, by weight, 20 parts of phosphogypsum, 1.2 parts of coal powder and K₂CO₃10 parts of SiO₂40 parts of the components.

Example 2

A transparent glass based on ardealite is prepared from ardealite (40 wt. portions), powdered coal (2.2), K₂CO₃20 parts of SiO₂80 parts of the components.

Example 3

The transparent glass based on phosphogypsum comprises 25 parts by weight of phosphogypsum, 1.5 parts by weight of coal powder and K₂CO₃12 parts and SiO₂50 parts of the components.

Example 4

The transparent glass based on phosphogypsum comprises 35 parts by weight of phosphogypsum, 1.9 parts by weight of coal powder and K₂CO₃18 parts of SiO₂70 parts of components.

Example 5

Phosphogypsum-based transparent materialThe glass consists of phosphogypsum 30 weight portions, coal powder 1.7 weight portions and K₂CO₃15 parts of SiO₂60 parts of components.

Example 6

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 2h at 1100 ℃, then cooling to 350 ℃, taking out the powder, standing at room temperature for 20min, and forming to obtain the transparent glass.

Example 7

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine the powder for 3h at 1150-.

Example 8

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 4h at 1200 ℃, then cooling to 400 ℃, taking out the powder, standing for 30min at room temperature, and forming to obtain the transparent glass.

Example 9

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 5h at 1250 ℃, then cooling to 420 ℃, taking out the powder, and placing the powder for 35min at room temperature to form the transparent glass.

Example 10

The preparation method of the phosphogypsum-based transparent glass comprises the following steps:

1) mixing phosphogypsum, coal powder and K₂CO₃And SiO₂Putting the mixture into a grinding machine to be uniformly ground to obtain powder;

2) transferring the powder prepared in the step 1) into a crucible, then transferring the crucible into a heating furnace to calcine for 6h at 1300 ℃, then cooling to 450 ℃, taking out the powder, and placing the powder for 40min at room temperature to form the transparent glass.

The above description is only for the purpose of illustrating the present invention, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.