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A method for improving the weather resistance of decorative base paper titanium dioxide

A technology of decorating base paper and titanium dioxide, which is applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve problems such as ideological constraints, and achieve the effects of reducing leakage, improving washing quality, and prolonging service life

Active Publication Date: 2019-01-25
HEBEI MILSON TITANIUM DIOXIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing methods of improving weather resistance are too restrictive, leading people to develop and research only towards titanium dioxide coating treatment

Method used

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  • A method for improving the weather resistance of decorative base paper titanium dioxide
  • A method for improving the weather resistance of decorative base paper titanium dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] ⑴ Add TiO to the slurry after bleaching 2 Sol: Titanium dioxide sol concentration 105.5g / L, according to sol TiO 2 / Metatitanate TiO 2 The ratio is 2.0%, and titanium dioxide sol is added to the metatitanic acid slurry after bleaching.

[0033] ⑵Pulping of metatitanic acid after the second washing: take 1300g of metatitanic acid (TiO 2 31.5%), add 150ml of desalinated water, stir evenly to make about 370.3g / LTiO 2 Slurry.

[0034] ⑶ Add phosphoric acid: phosphoric acid concentration 84.6%, press 0.28%P 2 O 5 Add the proportions to the slurry and stir for 30 minutes.

[0035] ⑷Add potassium carbonate solution: the concentration of potassium carbonate solution is 485.2g / LK 2 O, press 0.4%K 2 O ratio was added to the slurry and stirred for 30 minutes.

[0036] ⑸Add aluminum sulfate: aluminum sulfate concentration 97.3g / L, press 0.4% Al 2 O 3 Add the proportions to the slurry and stir for 30 minutes.

[0037] ⑹ Membrane pressure filtration: salt treatment slurry membrane pressure fil...

Embodiment 2

[0041] ⑴ Add TiO to the slurry after bleaching 2 Sol: Titanium dioxide sol concentration 115.2g / L, according to sol TiO 2 / Metatitanate TiO 2 The proportion is 5.0%, and titanium dioxide sol is added to the metatitanic acid slurry after bleaching.

[0042] ⑵Pulping of metatitanic acid after the second washing: Take 1300g (TiO230.8%) of metatitanic acid for the second washing, add 150ml of demineralized water, and stir evenly to make about 359.6g / LTiO 2 Slurry.

[0043] ⑶ Add phosphoric acid: phosphoric acid concentration 84.6%, press 0.20%P 2 O 5 Add the proportions to the slurry and stir for 30 minutes.

[0044] ⑷Add potassium carbonate solution: the concentration of potassium carbonate solution is 462.8g / LK 2 O, press 0.5%K 2 O ratio was added to the slurry and stirred for 30 minutes.

[0045] ⑸Add aluminum sulfate: aluminum sulfate concentration 98.6g / L, 0.5% Al 2 O 3 Add the proportions to the slurry and stir for 30 minutes.

[0046] ⑹ Membrane pressure filtration: the salt treatmen...

Embodiment 3

[0050] ⑴ Add TiO to the slurry after bleaching 2 Sol: Titanium dioxide sol concentration 125.3g / L, according to sol TiO 2 / Metatitanate TiO 2 The proportion is 4.0%, and titanium dioxide sol is added to the metatitanic acid slurry after bleaching.

[0051] ⑵Pulping of metatitanic acid after the second washing: take 1300g of metatitanic acid (TiO 2 32.4%), add 300ml of demineralized water, stir evenly to make about 338.0g / LTiO 2 Slurry.

[0052] ⑶ Add phosphoric acid: phosphoric acid concentration 84.6%, press 0.25% P 2 O 5 Add the proportions to the slurry and stir for 30 minutes.

[0053] ⑷Add potassium carbonate solution: the concentration of potassium carbonate solution is 495.3g / LK 2 O, press 0.3%K 2 O ratio was added to the slurry and stirred for 30 minutes.

[0054] ⑸Add aluminum sulfate: the concentration of aluminum sulfate is 105.1g / L, at 0.5% Al 2 O 3 Add the proportions to the slurry and stir for 30 minutes.

[0055] ⑹ Diaphragm pressure filtration: salt treatment slurry diap...

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Abstract

The invention provides a method for improving weather resistance of decorative base paper titanium dioxide, and belongs to the technical field of decorative base paper titanium dioxide. The control is performed through salt treatment and calcination. The method comprises the following steps of A, using bleached slurry as raw materials; adding titanium dioxide sol into the raw materials; controlling the addition to meet the requirement that the proportion of TiO2 in the titanium dioxide sol to TiO2 in metatitanic acid is 2 to 6 percent; performing water washing; diluting the slurry subjected to water washing into 300 to 400g / L TiO2 slurry; B, adding potassium and phosphorus solution with the K2O / P2O5 ratio being 1.3 to 4.0 into the diluted slurry; performing stirring; adding aluminum-containing compound solution according to the Al2O3 to TiO2 proportion being 0.3 to 0.9 percent; performing stirring; C, performing pressurized filtering on the slurry material treated by the step B until the filter cake solid content is 45 to 55 percent; C, roasting the filter cake in the step C for 8 to 10h at the roasting temperature of 200 to 950 DEG C. Through the control on the salt treatment and roasting processes, the primary product weather resistance of the decorative base paper titanium dioxide is improved; the weather resistance of the decorative base paper titanium dioxide is further improved.

Description

Technical field [0001] The invention belongs to the technical field of decorative base paper titanium dioxide, relates to the research on the weather resistance of decorative base paper titanium dioxide, and specifically relates to a method for improving the weather resistance of decorative base paper titanium dioxide. The method of the present invention abandons the existing inertial thinking of improving weather resistance from the post-treatment coating of titanium dioxide, and improves the weather resistance of the primary decorative base paper titanium dioxide by controlling the salt treatment and calcination process, thereby improving the decorative base paper titanium dioxide Weather resistance opens up a whole new way of thinking. Background technique [0002] There are two production methods for titanium dioxide, namely sulfuric acid method and chloride method. The global production capacity of sulfuric acid method and chlorination method basically account for 50% each,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/047C01G23/08
CPCC01G23/047C01G23/08C01P2006/62C01P2006/63C01P2006/64
Inventor 张建平张川张千张潇
Owner HEBEI MILSON TITANIUM DIOXIDE
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