Novel method for recycling synthetic rutile mother liquor
An artificial rutile and resource-based technology, applied in the chemical industry, can solve problems such as poor economic benefits, achieve the effects of less consumption, ensure dispersion and weather resistance, and increase market value
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Embodiment 1
[0049] (1) The mother liquor was allowed to stand for 48h to separate to obtain colloidal precipitate and clear mother liquor, then add 0.1% colloidal precipitate by volume to the clear mother liquor and stir, heat it to boiling within 30min, maintain a slightly boiling state for 30min, and cool to room temperature , add modified polyacrylamide with a volume ratio of 0.5%, stand at room temperature for 48h and then filter;
[0050] (2) Evaporating and concentrating the above-mentioned filtered mother liquor, the quality of the evaporated water accounts for 0.3 of the total mass of the mother liquor, crystallizing under cooling to 5°C, and filtering and separating the crystals;
[0051] (3) The above obtained crystal is configured as a 15% ferrous solution, 0.5% by mass of iron powder is added to carry out the replacement reaction, after the reaction is completed, 3% of modified activated carbon is added for adsorption, the adsorption time is 30min, and the filter is separated; ...
Embodiment 2
[0057] (1) The mother liquor was allowed to stand for 48h to separate to obtain colloidal precipitate and clear mother liquor, then add 0.5% colloidal precipitate by volume to the clear mother liquor and stir, heat it to boiling within 30min, maintain a slightly boiling state for 50min, and cool to room temperature , add modified polyacrylamide with a volume ratio of 0.1%, stand at room temperature for 48h and then filter;
[0058] (2) the above-mentioned filtered mother liquor is evaporated and concentrated, the quality of the evaporated water accounts for 0.6 of the total mass of the mother liquor, crystallized under cooling to 5°C, and the crystals are separated by filtration;
[0059] (3) The obtained crystal is configured as a 25% ferrous solution, 1% by mass of iron powder is added to carry out a replacement reaction, after the reaction is completed, 5% of modified activated carbon is added for adsorption, the adsorption time is 60min, and the filter is separated;
[006...
Embodiment 3
[0065] (1) The mother liquor was allowed to stand for 48 hours to separate to obtain colloidal precipitate and clear mother liquor, then add 0.4% colloidal precipitate by volume to the clear mother liquor and stir, heat it to boiling within 30 minutes, maintain a slightly boiling state for 50 minutes, and cool to room temperature , add modified polyacrylamide with a volume ratio of 1%, stand at room temperature for 48h and then filter;
[0066] (2) Evaporating and concentrating the above-mentioned filtered mother liquor, the quality of evaporating water accounts for 0.9 of the total mass of the mother liquor, crystallizing under cooling to 10 °C, and filtering and separating the crystals;
[0067] (3) The above obtained crystal is configured as a 22% ferrous solution, 1% by mass of iron powder is added to carry out the replacement reaction, after the reaction is completed, 5% of modified activated carbon is added for adsorption, the adsorption time is 120min, and the filter is ...
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