Preparation process of calcium sulfate whisker
A technology of calcium sulfate whisker and preparation process, applied in the field of new chemical materials and chemical product production, can solve the problems of uneven aspect ratio, high production cost, refining and impurity removal, etc.
Active Publication Date: 2013-01-02
山东锦泰晶须科技发展有限公司
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Problems solved by technology
[0008] The preparation methods of these calcium sulfate whiskers use natural or by-product calcium sulfate dihydrate as raw materials, and there are problems such as refining and impurity removal procedures, low product whiteness, uneven aspect ratio, and high production costs.
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Embodiment 1
[0016] Embodiment 1, annual production process flow chart of 10,000 tons of calcium sulfate whiskers is referring to attached figure 1 .
[0017] figure 1 Medium ammonia regeneration tank 1, induced draft fan 2, centrifugal filter 3, calcium chloride liquid tank 4, vacuum pump 5, calcium chloride liquid pump 6, whisker grower 7, mesh belt vacuum filter 8, ammonium chloride liquid tank 9, vacuum pump 10, ammonium chloride liquid pump 11, ammonium sulfate dissolving tank 12, centrifugal filter 13, ammonium sulfate liquid tank 14, ammonium sulfate liquid pump 15, washing liquid tank 16, washing liquid pump 17; undissolved residue A, Ammonium sulfate B, recycled slag C, calcium carbide mud D, ammonia steam E, heating steam F, condensed water G, calcium sulfate whiskers H.
[0018] The flow rate of calcium carbide mud is 1046.4Kg / h, and it is pumped into the ammonia regeneration tank 1 by the calcium carbide mud slurry pump. In the ammonia regeneration tank 1, the ammonia regener...
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Abstract
The invention relates to a preparation process of calcium sulfate whisker, in particular to the preparation process which utilizes calcium carbide mud as raw materials, enables ammonium chloride and the calcium carbide mud to react to generate calcium chloride and ammonia simultaneously, and enables ammonium sulfate and the calcium chloride to react to prepare the calcium sulfate whisker, wherein the ammonium chloride generated by the reaction between the ammonium sulfate and the calcium chloride can be used repeatedly. The preparation process of the calcium sulfate whisker has the advantages that an ammonia regeneration reaction is easily performed, and the by-product ammonia has high value; whisker preparation reactions are integrated, and the whole kettle group can perform continuous production; the separation process and the surface treatment process are integrated and can achieve steamed ammonia effect; the obtained calcium sulfate whisker has the length-diameter ratio as high as 80-200, the whiteness as high as 90% and purity as high as 99% and has high production value; and the produced ammonia water is adjustable in concentration and can be recycled fully.
Description
Technical field [0001] The invention is the field of chemical products and new chemical materials.The present invention involves a preparation process of a gypsum crystal beard. More specifically, it is the application of PVC enterprise by -production electric mud and coal -fired power plant ammonia sulfur sulfate sulfate sulfate to produce calcium sulfate crystals in raw materials.At the same time, the products of the PVC enterprise have been solved, and the ammonia sulfate sulfate sulfate sulfate sulfate sulfate sulfate sulfate sulfate sulfate in PVC enterprises is resolved. Background technique [0002] Calcium sulfate, alias: gypsum crystal, gypsum fiber; ingredient molecular formula: CASO 4 EssenceCalcium sulfate is divided into three types: water -free, semi -water, and two water. Among them, calcium -free calcium sulfate is the highest intensity.Calcium sulfate crystals must not be enhanced when used more than 110 ° C, and the industrial application prospects are small; wa...
Claims
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IPC IPC(8): C30B29/46C30B29/62C30B1/10C01C1/02
Inventor 陶俊徐继红
Owner 山东锦泰晶须科技发展有限公司