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Method for producing sodium sulfhydrate

A sodium hydrosulfide and production method technology, applied in chemical instruments and methods, sulfur compounds, inorganic chemistry, etc., can solve the problems affecting the quality and use of sodium hydrosulfide products, inconvenient use, easy to puncture the product, etc., to achieve easy Implementation, not easy to stick, good fluidity effect

Inactive Publication Date: 2006-12-06
樊占寅
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  • Abstract
  • Description
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Problems solved by technology

The block sodium hydrosulfide produced by the usual production method adopts the method of directly packing into the tin barrel, because the sodium hydrosulfide in the packaging barrel is agglomerated, difficult to break, difficult to dissolve, resulting in inconvenient use
Invention titled "Production Method of Flake Sodium Hydrosulfide", patent number: 00128499.1 Chinese patent discloses a production method of Flake Sodium Hydrosulfide, although it can better solve the above problems, but there are also products that are easy to puncture The deficiencies of plastic packaging bags, easy to stick into blocks, and poor fluidity affect the quality and use of sodium hydrosulfide products

Method used

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  • Method for producing sodium sulfhydrate

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Embodiment Construction

[0011] As shown in the figure, the sodium hydrosulfide aqueous solution is concentrated to 65-90% content by common methods. The sodium hydrosulfide solution in (1) drips onto the rotary belt (2) from the bottom hole, and the rotary belt (2) moves at a constant speed under the action of the rotating system (3), and a circulating cooling water is installed at the lower part of the rotary belt (2) System (4), the cooling water makes the sodium hydrosulfide on the rotary belt (2) gradually cool and solidify into shape, the temperature of the cooling water is ≯25°C, and the sodium hydrosulfide is separated when the rotary belt (2) turns to bend, and it can also be arranged on the rotary belt ( 2) Turn to the scraper (5) on the front lower side of the bend to scrape off the sodium hydrosulfide, then use conventional methods to bag and seal the sodium hydrosulfide.

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Abstract

This invention discloses a method for producing NaHS from NaHS aqueous solution. The method comprises: (1) introducing concentrated NaHS aqueous solution at a certain temperature to a distributor; (2) dropping onto a swing belt in uniform motion; (3) solidifying NaHS with circulating cooling water below the swing belt; (4) separating to obtain NaHS. The obtain NaHS product has such advantages as uniform particle sizes, no binding, good fluidity, smooth surface, simple production process, continuous operation, and high efficiency.

Description

technical field [0001] The present invention relates to a kind of production method of sodium hydrosulfide, specifically a kind of method that takes sodium hydrosulfide aqueous solution as raw material to produce sodium hydrosulfide. Background technique [0002] Sodium hydrosulfide is easy to deliquesce and agglomerate. The lump sodium hydrosulfide that usual production method produces adopts the method for directly packing into tin bucket, because the sodium hydrosulfide in the packaging barrel is agglomerated, is difficult to break, and is difficult to dissolve, causes use inconvenient. The invention titled "Production Method of Flake Sodium Hydrosulfide" and the patent number: 00128499.1 Chinese patent discloses a production method of Flake Sodium Hydrosulfide. Although it can solve the above problems well, the product is easy to be punctured. The deficiencies of plastic packaging bags, easy bonding into blocks, and poor fluidity affect the quality and use of sodium hyd...

Claims

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Application Information

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IPC IPC(8): C01B17/32
Inventor 樊占寅陈海飞
Owner 樊占寅
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