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Fully-automatic production line type potassium nitrate recovering process

An assembly line, potassium nitrate technology, applied in the direction of alkali metal nitrate, alkali metal nitrate purification, alkali metal compounds, etc., can solve problems such as waste, and achieve the effect of being suitable for storage, large production capacity, and high product purity

Active Publication Date: 2013-12-25
LENS TECH
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Problems solved by technology

Chemical tempering is a process in which potassium ions in molten potassium nitrate replace sodium ions in the glass. Therefore, as the tempering continues, the sodium ions in the molten salt continue to increase. When the concentration of sodium ions reaches 10,000PPM or even lower, it cannot be used for tempering. Water can only be sold as waste potassium nitrate to recycling manufacturers at a low price, causing great waste

Method used

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  • Fully-automatic production line type potassium nitrate recovering process
  • Fully-automatic production line type potassium nitrate recovering process
  • Fully-automatic production line type potassium nitrate recovering process

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing.

[0016] see figure 1 , the technological process is as follows:

[0017] 1. Waste dissolution

[0018] The waste material is waste potassium nitrate after glass strengthening, containing NaNO3, NaNO2, KNO3, KNO2 and other impurity salts, all of which are easily soluble salts.

[0019] Solution temperature of waste dissolving tank: 110℃~120℃.

[0020] Addition quality of waste materials: Dissolve 300g-350g of waste potassium nitrate in 100g of water.

[0021] Dissolving time of waste: the user can adjust the power of the heater to control it according to the situation. If the dissolution time needs to be prolonged, the heater power can be increased; if the dissolution time needs to be shortened, the heater power can be reduced.

[0022] Other technical requirements: The waste dissolving tank needs to add a stirrer to speed up the dissolving of waste, and at the same time...

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Abstract

The invention discloses a fully-automatic production line type potassium nitrate recovering process. The wastes are potassium nitrate wasted after glass strengthening, the wastes are crushed, added into water, heated to dissolve, and cooled and crystallized after being dissolved, crystals are washed by water and centrifugally separated, and the centrifugally separated solids are subjected to drying and dehumidifying, so as to obtain a finished product potassium nitrate. The fully-automatic production line type potassium nitrate recovering process provided by the invention has high yield, high recovering rate and high quality of a recovered product.

Description

technical field [0001] The invention relates to a potassium nitrate recovery process, in particular to a fully automatic assembly line type potassium nitrate recovery process. Background technique [0002] The material needed for glass chemical tempering is industrial grade potassium nitrate with a purity of more than 99.6%. The market price is about 10,000 yuan / ton, and imported ones are more expensive. Chemical tempering is a process in which potassium ions in molten potassium nitrate replace sodium ions in the glass. Therefore, as the tempering continues, the sodium ions in the molten salt continue to increase. When the concentration of sodium ions reaches 10,000PPM or even lower, it cannot be used for tempering. Water can only be sold as waste potassium nitrate to recycling manufacturers at a low price, causing great waste. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fully automatic pipeline type potas...

Claims

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Application Information

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IPC IPC(8): C01D9/00C01D9/16
Inventor 周群飞
Owner LENS TECH
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