Summary of the invention
The object of the invention is to overcome weak point in prior art, the Rectorite after a kind of acidifying is provided.
Rectorite batching after acidifying is made up of Rectorite, attapulgite clay, magnesium oxide, sulfuric acid, quick dissolved sodium silicate, polyvinyl alcohol, Vltra tears and sodium carbonate.
The production method of the Rectorite after acidifying: by abrasive dust in the Rectorite batching input grinding machine after acidifying, the meal after abrasive dust is the Rectorite after acidifying.
Rectorite leng mostly is finely squamose, also can see lath-shaped, fiber needle-like crystal, main component is hydrous alumino silicates, many and clay pit association, mineralogical composition is called Rectorite taking rectorite leng as the clay of leading or contain certain proportion rectorite leng, and the present invention selects particle fineness≤0.5 millimeter of Rectorite.
Attapulgite clay has unique layer chain-like structure feature, and crystal is needle-like, fibrous or fiber collection shape.Attapulgite clay has unique dispersion, high temperature resistant, the anti-good colloidal property such as saline and alkaline and higher adsorptive power, and has certain plasticity-and cohesive force.
Magnesium oxide has the general character of basic oxide, belongs to gelling material, can improve the colloidal property of Rectorite.
It is 98% the vitriol oil that sulfuric acid is selected concentration.
Quick dissolved sodium silicate is white pulverulent material, can be dissolved in fast water, has that cohesive force is strong, intensity is higher, acid resistance, good heat resistance, the feature of alkali resistance and poor water resistance.
Polyethenol series white solid, that external form is divided is cotton-shaped, particulate state, Powdered three kinds; Nonpoisonous and tasteless, particulate state can be dissolved in 80--90 DEG C of water, pulverously after other powders pre-dispersed, can dissolve at normal temperatures.There is good viscosity, polymerizability, cohesiveness and water-retentivity.
Vltra tears has thickening capabilities, salt discharge, pH stability, water-retentivity, dimensional stability, good film-forming properties and the feature such as resistance to enzyme, dispersiveness and cohesiveness widely.
Sodium carbonate has the general character and the thermostability of salt, soluble in water, and its aqueous solution is alkalescence, in the present invention for adjusting the Rectorite pH value after acidifying.
The present invention is achieved by following technical proposals:
1, the batching of the Rectorite after acidifying is made up of following component by weight percentage: Rectorite work in-process 90~98%, quick dissolved sodium silicate 0.1~5%, polyvinyl alcohol 0.1~5%, Vltra tears 0.01~3% and sodium carbonate 0~3% after acidifying.
2, the production method of the Rectorite after acidifying: by abrasive dust in the Rectorite batching input grinding machine after acidifying, particle fineness≤0.074 millimeter, the meal after abrasive dust is the Rectorite finished product after acidifying.
3, the half-finished production method of the Rectorite after acidifying: stir in the stirrer (1) first Rectorite after weathering input having been turned round, then dilute sulphuric acid is slowly added and carries out acidification in the Rectorite after weathering; (2) by the Rectorite after acidification, push as Rectorite flap thickness≤3 millimeter of Rectorite flap by twin rollers; (3) Rectorite flap is transported to roasting in rotary type stoving oven, roasting time is 1~3 hour, maturing temperature is controlled at 250~350 DEG C, Rectorite flap water content≤5% after roasting, Rectorite flap after roasting is the Rectorite work in-process after acidifying, and PCm is weight percentage.
4, the batching of Rectorite flap is made up of following component by weight percentage: Rectorite mixture 75~95% and dilute sulphuric acid 5~25%.
5, the batching of Rectorite mixture is made up of following component by weight percentage: Rectorite 68~92%, attapulgite clay 7~30% and magnesium oxide 0.1~3%.
6, the batching of dilute sulphuric acid is made up of following component by weight percentage: the vitriol oil 1~25% that concentration is 98% and water 75~99%, the vitriol oil per-cent that concentration is 98% is weight percentage.
The production method of the Rectorite after acidifying takes first acidifying to carry out compounding ingredient again, can avoid sulfuric acid and quick dissolved sodium silicate, polyvinyl alcohol, Vltra tears and sodium carbonate generation chemical reaction, give full play to raw-material characteristic separately in batching, and obtain complementation, guarantee the Rectorite inner quality after acidifying.
According to the needs of quality product, adopt sodium carbonate to adjust the Rectorite pH value after acidifying, method is simple.
Rectorite after acidifying has good adsorptivity, oilness, thermostability, plasticity-and cohesiveness.
Rectorite after acidifying is applicable to the raw material of catalytic cracking agent carrier, coating, pottery and refractory materials.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the batching of the Rectorite after acidifying is made up of following component by weight percentage: Rectorite work in-process 96%, quick dissolved sodium silicate 2%, polyvinyl alcohol 1.5%, Vltra tears 0.49% and sodium carbonate 0.01% after acidifying.
2, the production method of the Rectorite after acidifying: by abrasive dust in the Rectorite batching input grinding machine after acidifying, particle fineness≤0.074 millimeter, the meal after abrasive dust is the Rectorite finished product after acidifying.
3, the half-finished production method of the Rectorite after acidifying: stir in the stirrer (1) first Rectorite after weathering input having been turned round, then dilute sulphuric acid is slowly added and carries out acidification in the Rectorite after weathering; (2) by the Rectorite after acidification, push as Rectorite flap thickness≤3 millimeter of Rectorite flap by twin rollers; (3) Rectorite flap is transported to roasting in rotary type stoving oven, roasting time is 2 hours, maturing temperature is controlled at 300~350 DEG C, Rectorite flap water content≤5% after roasting, and the Rectorite flap after roasting is the Rectorite work in-process after acidifying.
4, the batching of Rectorite flap is made up of following component by weight percentage: Rectorite mixture 92% and dilute sulphuric acid 8%.
5, the batching of Rectorite mixture is made up of following component by weight percentage: Rectorite 84%, attapulgite clay 14% and magnesium oxide 2%.
6, the batching of dilute sulphuric acid is made up of following component by weight percentage: the vitriol oil 10% that concentration is 98% and water 90%.