Glyphosate reaction filter method and special filter for glyphosate thereof
A filter and glyphosate technology, applied in chemical instruments and methods, organic chemistry, compounds of group 5/15 elements of the periodic table, etc., can solve problems such as time-consuming, dead ends in product washing, and high energy consumption, and achieve High production efficiency, stable filtrate quality, and simple operation
Active Publication Date: 2011-02-16
ZHEJIANG DONGOU FILTERING MASCH MFG CO LTD
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Problems solved by technology
The glyphosate reaction filtration method in the prior art includes: first, diglyphosate is oxidized in a reactor to generate glyphosate mother liquor, then the glyphosate mother liquor is sent to a filter for filtration, washing, and drying, and then the filtrate or filter cake is Transport to the reactor for treatment, and then transport the treated filtrate or filter cake to the filter machine for filtration, washing, and drying. Repeat the above steps, the quality of the filtrate is unstable, the operating environment of the workers is bad, and the operator carries the solid filter cake. Time-consuming, labor-intensive, high energy consumption and low efficiency
Most of the filters in the prior art are suction filter cartridges, centrifuges or plate and frame filter presses, which also have the disadvantages of frequent leakage during the filtration process, dead ends in product washing, and unsatisfactory results
Method used
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[0012] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0013] The invention relates to a glyphosate reaction filtering method, in which the steps of mixing, stirring, reacting, filtering, pressing dry, washing, bubbling conveying and filter cake discharge are completed in one time in a special filter machine. The detailed steps are as follows: send diglyphosate and oxidizing solution (such as concentrated sulfuric acid, hydrogen peroxide or activated carbon catalyst) into the filter to mix and oxidize to generate glyphosate mother liquor, such as figure 1 with 2 As shown, bisglyphosate and oxidizing liquid are input from feed port 12 for mixing, stirring, and reacting. At this time, according to the needs of the reaction, the temperature regulating liquid can flow into the jacket layer 34 from the jacket inlet 40, and then flow into the jacket layer 34 from the jacket outlet. 41 flows out, and the reaction tempe...
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The invention relates to a special filter for glyphosate. The filter comprises a barrel, a spray device, a feeding hole, a filtrate outlet, a micropore filter device, a positive blowing port, a back blowing port, a bubble conveying device and a stirring device; the filter is provided with a jacket layer; and temperature adjusting liquid flows in from a jacket inlet and flows out from a jacket outlet to adjust the reaction temperature of the filtrate in the barrel. The filter has the advantage of realizing the steps of mixing, stirring, reacting, filtering, dry pressing, washing, bubble conveying and filter cake discharge required for glyphosate reaction and filtration in a closed space.
Description
technical field [0001] The invention relates to a glyphosate manufacturing method and equipment, in particular to a glyphosate reaction filtration method and a special filter for glyphosate reaction and solid-liquid separation. Background technique [0002] At present, the main steps of a glyphosate manufacturing method are as follows: iminodiacetic acid hydrochloride is reacted to generate diglyphosate, diglyphosate is oxidized to generate glyphosate mother liquor, and glyphosate mother liquor is solidified through a filter. Liquid separation, low-temperature crystallization to generate solid glyphosate, and finally dried and packaged to make a finished product. The glyphosate reaction filtration method in the prior art includes: first, diglyphosate is oxidized in a reactor to generate glyphosate mother liquor, then the glyphosate mother liquor is sent to a filter for filtration, washing, and drying, and then the filtrate or filter cake is Transport to the reactor for trea...
Claims
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IPC IPC(8): C07F9/38
Inventor 宋显洪宋志骥周文浩程明仿陈金富陈崇炯
Owner ZHEJIANG DONGOU FILTERING MASCH MFG CO LTD