Potash feldspar wet method decomposition and production process

A production process and technology of potassium feldspar, applied in potash fertilizers, inorganic fertilizers, fertilization devices, etc., can solve the problems of product and by-product output and quality to be improved, ore decomposition is not thorough enough, silicon-containing gas recovery is complex, etc., to achieve economic benefits Appreciable, easy-to-control, well-set-up effects

Inactive Publication Date: 2006-05-03
鄂州市长润农业生态技术有限公司
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Problems solved by technology

This method improves the comprehensive utilization rate of potassium feldspar, the process is relatively simple, and the recycling rate of additives is high, but the method is more complicated for the recovery of silicon-containing gas, and the amount of recovered silicic acid and white carbon black is less. The utilization of silicon compounds contained in potassium feldspar is insufficient, the cost of its additives is high, the ore decomposition is not thorough enough, and the yield and quality of the obtained products and by-products need to be improved

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  • Potash feldspar wet method decomposition and production process

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment:

[0023] 1. Pretreatment of ore

[0024] Potassium feldspar has a very tight lattice structure and very stable chemical properties. In the implementation process, the local flesh-red potassium feldspar ore was selected as the main raw material, and the K in the ore 2 The average content of O is more than 10.5%, SiO 2 The average content is 66%, Al 2 o 3 The average content is 15%, Fe 2 o 3 The average content is in the range of 3%-4%. Potassium feldspar ore should be kept dry and should not be placed in the open air to prevent water from being brought in and affecting crushing. The ore should be coarsely crushed and ball milled to 150-200 mesh (full sieve). 200-mesh ore powder can be used as raw material to increase the contact area with acid and other substances. Since the ore contains Fe 2 o 3 , FeO and other impurities with darke...

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Abstract

The wet-way decomposition manufacturing technique for potash feldspar comprises: adding sulfuric acid into the mineral powder of potash feldspar and fluorite to mix and acidolysis at 50-80Deg, preparing white carbon black both from gas and acidolysis liquid to increase its yield as well as aluminum hydroxide and sodium fluoride and K-N compound fertilizer. This process is simple, high effect and low cost, can produce a plurality of products and byproducts with little pollution well economic benefit.

Description

Technical field [0001] The present invention relates to a kind of potash fertilizer production technology, also relates to the production technology of inorganic chemical raw materials, specifically refers to a kind of wet decomposition production technology of potassium feldspar. technical background [0002] Potassium feldspar is a natural ore rich in potassium, aluminum and silicon. Our country is rich in potassium feldspar. Many enterprises use potassium feldspar as an additive in the production of cement, ceramics, and glass, and its added value is low. In the past ten years, my country has made some progress in the comprehensive development and utilization of potassium feldspar. Among them, the wet decomposition process of potassium feldspar can produce white carbon black and polyaluminum chloride by-product in the process of producing potassium sulfate and other chemical raw materials. Such as Chinese patent announcement number: CN1072197C, date of announcement: Novem...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05D1/04
Inventor 刘晓木徐旺生
Owner 鄂州市长润农业生态技术有限公司
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