Method for producing alumina fiber from sodium silica slag and alumina fiber
A technology of alumina fiber and sodium silicate, applied in the production of alumina fiber and alumina fiber, can solve the problem of reducing raw/clinker grade and equipment utilization rate, increasing unit energy consumption of alumina, loss of alumina and sodium oxide, etc. problems, to achieve the effect of superior performance, thin diameter and high heat resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0036] The invention provides a preparation method of a spinnable, inhibitor-containing aluminum nitrate solution, and uses industrial solid waste sodium silica slag to inhibit the formation of an alpha-Al2O3 phase; and spins it into alumina fibers.
[0037] In the present embodiment, a method for producing alumina fiber from sodium silica slag is provided, figure 1 It is the flow chart of producing alumina fiber with sodium silicon slag as raw material according to the embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:
[0038] The sodium silicon residue is de-sodiumized, mixed with an acid solution and dispersed after de-sodium, and a first reaction is performed at a temperature of 15-100° C. to obtain a first solution, and the pH value of the end point of the first reaction is 2-7.
[0039] The first solution is placed at a temperature of 105-250° C. for heat preservation, mixed with a surfactant after heat preservatio...
Embodiment 1
[0074] The method for producing alumina fibers with sodium silicon slag as a raw material provided by the present embodiment includes:
[0075] S1: Mix 200 g of de-sodium silicon slag with 1000 ml of acid solution, and carry out a reaction to obtain a first solution;
[0076] S2: incubate the first solution, mix it with polyvinylpyrrolidone K15 and PEG-14M polyoxyethylene ether WSR205 after the insulation, and then evaporate and concentrate to obtain a spinning solution;
[0077] S3: Spinning and drying the solution to be spun in sequence to obtain alumina fibers.
[0078] In S1, the reaction temperature of the first reaction was 25° C., the reaction time was 80 min, and the pH value of the reaction end point was 6.3.
[0079] In S2, the temperature of the heat preservation was 150° C., and the time of the heat preservation was 90 min.
[0080] Polyvinylpyrrolidone K15 is 2 g, PEG-14M polyoxyethylene ether WSR205 is 1 g, and the second solution is 1.5 L.
[0081] In S3, at ...
Embodiment 2
[0084] The method for producing alumina fibers with sodium silicon slag as a raw material provided by the present embodiment includes:
[0085] S1: Mix 250 g of de-sodium silicon slag with 1500 ml of acid solution, and carry out a reaction to obtain a first solution;
[0086] S2: incubate the first solution, mix it with polyvinylpyrrolidone K15 and PEG-14M polyoxyethylene ether WSR205 after the insulation, and then evaporate and concentrate to obtain a spinning solution;
[0087] S3: Spinning and drying the solution to be spun in sequence to obtain alumina fibers.
[0088] In S1, the reaction temperature of the first reaction was 25° C., the reaction time was 90 min, and the pH value of the reaction end point was 5.6.
[0089] In S2, the temperature of the heat preservation was 180°C, and the time of heat preservation was 100 min.
[0090] The polyvinylpyrrolidone K15 was 2.5 g, the PEG-14M polyoxyethylene ether WSR205 was 1.5 g, and the second solution was 2 L.
[0091] In...
PUM
| Property | Measurement | Unit |
|---|---|---|
| strength | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More