Process for preparing crystalline potassium chloride by raw bittern salt field method
A potassium chloride and crystallization technology, applied in the direction of alkali metal chloride, etc., can solve the problems of many control links, large investment in plant construction, poor control, etc., and achieve the effects of uniform grade, high recovery rate, and resource saving
Inactive Publication Date: 2006-09-13
高崧耀 +2
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The above production methods all involve large investment, high cost, numerous machines, long process, many control links, and low recovery rate, all of which require chemical addition and coal consumption.
Moreover, if the control of any link is not good, low-grade potassium chloride products will emerge in endlessly
There are also some enterprises that use the E halogen and F halogen to mix the carnallite in the halogen converter, and then the carnallite is washed, dried and packaged for the factory for the second time; Low recovery rate
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 1
[0030] The concentration that takes 1240kg is that the potassium chloride content of 29Be is the original halogen of 1.6%, pre-drying to concentration is 31.5Be, obtains the solution 1 of 1103kg, then continues to tan and obtains the carnallite 81kg that potassium chloride content is 22% , then washing to obtain potassium chloride content is 68% crude potassium chloride 19.1kg, then through dissolving and drying to obtain 9.12kg of 93% crystalline potassium chloride.
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
Potassium chloride is important potash fertilizer and important industrial material and the present invention provides one kind of high quality crystallized potassium chloride producing process. The present invention is a great area salt field solarization process for producing potassium chloride directly. The potassium chloride producing process includes compounding mother solution with bittern, solarization in salt field, washing the carnallite with compounded solution, dissolving with fresh water to saturation, solarization in potassium chloride crystallizing pond to separate potassium chloride crystal, washing and drying. Meanwhile, sodium chloride and magnesium chloride may be also obtained.
Description
technical field [0001] The invention relates to the technical field of alkali metal halides, in particular to a preparation method of potassium chloride. Background technique [0002] Potassium chloride is the main variety of agricultural potassium fertilizer, and it is also the main raw material for industrial production of other potassium salts. At present, 90% of the potassium chloride production enterprises in my country are still using the traditional production methods such as positive and negative "flotation" and hot melting, and the raw material "carnallite" is loaded from Yantian to In the raw material yard of the workshop, the materials are loaded by bulldozers, and then packaged and shipped out of the factory after passing through feeding machines, belt conveyors, decomposition machines, flotation machines, centrifuges, and dryers. The above production methods all have large investment, high cost, numerous machines, long process, many control links, and low recove...
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 Patent Type & Authority Patents(China)
IPC IPC(8): C01D3/04
Inventor 高崧耀
Owner 高崧耀