Method for producing high-class purified ammonium by washing ammonium chloride with ammonia liquor
A technology of ammonium chloride and ammonia mother liquor, applied in the field of refined ammonium, can solve the problems of agricultural ammonium chloride production capacity impact, process condition limitation, large investment, etc., and achieve remarkable environmental protection effect
Inactive Publication Date: 2011-11-09
HUBEI SHUANGHUAN SCIENCE AND TECHNOLOGY STOCK CO LTD
View PDF0 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
But the investment is large, and it has a certain impact on the production capacity of agricultural ammonium chloride
[0004] 3. The production of refined ammonium by the combined method is limited by the process conditions, and the product quality can only reach the first-class standard
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with accompanying drawing:
[0025] Such as figure 1 Shown, the ammonia mother liquor 1 that the present invention produces agricultural ammonium chloride system to send and solid agricultural ammonium chloride 2 are sent to a washing thickener 8 after being fully washed in a washing bucket 3, and are solidified through a washing centrifuge 7. The liquid is separated, the solid ammonium chloride enters the second washing barrel 6, and the liquid 4 returns to the system. In the second washing barrel 6, the ammonium chloride after the second washing mother liquor and the first washing is fully washed, and sent to the second washing thickener 10, and the solid-liquid separation is carried out through the second washing centrifuge 11, while spraying with spray water 12, further Reduce sodium content. Solid ammonium chloride enters drying oven 13 and is dried into finished product refined ammonium 18. Wh...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method for producing purified ammonium by washing agricultural ammonium chloride with ammonia liquor, in particular to a method for producing high-class purified ammonium. The method comprises the steps of washing twice, thickening twice, separating twice, spraying once and drying once, and is characterized in that: solid agricultural ammonium chloride is washed with ammonia liquor, so that the quality of the purified ammonium product reaches the standard of a high-class product. The method has the advantages that: the washed ammonia liquor is sent back to a system for recycling, so that the content of sodium salt in the agricultural ammonium chloride is reduced by 60 percent, and the main content of the purified ammonium product reaches the quality standard of a first-class product; spray water is used for spraying in secondary separation, and the main content reaches the quality standard of a high-class product; barium chloride is added into secondary washing liquor in a proportion, and the content of sulfate in the purified ammonium product reaches the quality standard of a high-class product; and the secondary washing liquor and the liquor filter-pressed by the barium sulfate are sent back to the system for recycling, so that zero emission is achieved. The method disclosed by the invention has a remarkable environment-friendly effect.
Description
technical field [0001] The invention relates to a method for producing refined ammonium by washing agricultural ammonium chloride with ammonia mother liquor, especially a method for producing high-quality refined ammonium. Background technique [0002] 1. The process of industrial ammonium chloride has always been to wash the finished agricultural ammonium chloride with clean water to make it meet the quality standard of refined ammonium. When the sodium content of the mother liquor after washing reaches a certain concentration, it cannot continue to be used. As my country's environmental protection pressure is increasing. Some small enterprises that purchase agricultural ammonium chloride as raw materials to produce refined ammonium have to stop production due to environmental pressure. [0003] 2. Some large and medium-sized enterprises that produce agricultural ammonium chloride have designed a set of equipment specially used to produce industrial ammonium chloride. En...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): C01C1/16
Inventor 蒋远华杨晓勤张道红何原武丽华姜伟民张小刚付胜辉
Owner HUBEI SHUANGHUAN SCIENCE AND TECHNOLOGY STOCK CO LTD