Preparation method and application of iron-loaded bentonite
A technology of bentonite and iron salt, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problems of poor decolorization effect and difficult separation of bentonite, and solve the problems of solid-liquid separation and recovery , The effect of reducing the production cycle and reducing the production cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] The preparation method of the iron-loaded bentonite described in the present embodiment may further comprise the steps:
[0023] Step 1: Dry the natural bentonite mined in the mine at 85°C to a moisture content of 18%, grind it with a mill, and sieve it through an 80-mesh sieve to remove impurities;
[0024] Step 2: Add the sieved bentonite to sulfuric acid solution (mass fraction 10%), heat up to 75°C, stir for 4 hours and then cool to room temperature naturally, then adjust the activation solution to neutrality with alkali solution, the mass ratio of bentonite to sulfuric acid solution 1:0.5;
[0025] Step 3: Add ferric chloride solution (mass fraction 25%) into the activated bentonite, stir evenly, soak at room temperature for 9 hours, the ratio of ferric chloride solution to bentonite is 0.9ml:0.7g;
[0026] Step 4: add binder, binder addition is 1.8 times of bentonite quality, after mixing, become plastic solid material, binder selects carboxymethyl cellulose sodi...
Embodiment 2
[0029] The preparation method of the iron-loaded bentonite described in the present embodiment may further comprise the steps:
[0030] Step 1: Dry the natural bentonite mined in the mine at 85°C to a moisture content of 20%, grind it with a mill, and sieve it through an 80-mesh sieve to remove impurities;
[0031] Step 2: add the bentonite after sieving to sulfuric acid solution (mass fraction 12%), heat up to 80°C, stir for 3.5h and then cool to room temperature naturally, then adjust the activation solution to neutral with alkali solution, the quality of bentonite and sulfuric acid solution The ratio is 1:0.4;
[0032] Step 3: Add ferric chloride solution (mass fraction 25%) into the activated bentonite, stir evenly, soak at room temperature for 9 hours, the ratio of ferric chloride solution to bentonite is 0.9ml:0.8g;
[0033] Step 4: add binder, the amount of binder added is 1.8 times of the quality of bentonite, after mixing, it becomes a plastic solid material, and the...
Embodiment 3
[0036] The preparation method of the iron-loaded bentonite described in the present embodiment may further comprise the steps:
[0037] Step 1: Dry the natural bentonite mined in the mine at 85°C to a moisture content of 20%, grind it with a mill, and sieve it through an 80-mesh sieve to remove impurities;
[0038] Step 2: Add the sieved bentonite to sulfuric acid solution (mass fraction 15%), heat up to 85°C, stir for 3 hours and then cool to room temperature naturally, then adjust the activation solution to neutral with alkali solution, the mass ratio of bentonite to sulfuric acid solution is 1:0.3;
[0039] Step 3: Add ferric chloride solution (30% by mass) into the activated bentonite, stir evenly, soak at room temperature for 9 hours, the ratio of ferric chloride solution to bentonite is 0.7ml:1g;
[0040] Step 4: add binder, the amount of binder added is twice the mass of bentonite, after mixing, it will become a plastic solid, and the binder is a mixture of sodium carb...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More