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CS2 reagent purification method

A technology of reagents and scavengers, applied in the direction of carbon disulfide, carbon-sulfur compounds, etc., can solve the problems of complicated and cumbersome processes, uncontrolled metals and heavy metals, and poor safety.

Inactive Publication Date: 2013-03-27
SHANGHAI ANPEL SCI INSTR
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  • Summary
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Problems solved by technology

[0002] At the current stage, carbon disulfide is required for solvent analysis in the steps of biomedical testing, water, soil, and air benzene series analysis. In order to reduce the interference of benzene series benzene bases on analysis and testing, there are currently benzene backgrounds in domestic production of carbon disulfide Too high and because carbon disulfide is a toxic environmental chemical, it is impossible to import high-quality carbon disulfide through normal channels (such as sigma low-benzene grade carbon disulfide, etc.). Easy to boil and flammable, poor safety, and it is difficult to completely remove benzene series, and there is no control over metals and heavy metals

Method used

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Examples

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Embodiment Construction

[0009] This specific embodiment adopts the following technical scheme: its operation steps: (1) organic impurity purification treatment: in the custom-made glass reaction vessel with a valve that can be connected to the filter device at the bottom of the 50L container, add 30L of common industrial grade CS2 raw materials, add 5KG product code is 13-HPX purification adsorbent; insert the glass connecting tube to the bottom of the container, open the vent valve, carry out catalytic adsorption for 60-120min, open the valve of the N2 steel cylinder, and stir with N2; react for 2-6 hours, close the vent valve , turn off the N2 stirring, stand still for 12 hours, the sampling instrument detects, if the specified index is reached, stop stirring and filter the packaging; if necessary, adjust the dosage ratio of 13-HPX to speed up the purification efficiency; if the impurity test is qualified, open the bottom valve and filter; the filtrate enters the reaction (2) Purification treatment ...

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Abstract

The invention discloses a CS2 reagent purification method, and relates to the technical field of biology and new medicine. The method comprises the following operation steps: (1) an organic impurity purification treatment, (2) a metal and heavy metal impurity purification treatment, and (3) 0.22 mum filtration packaging. According to the method, organic impurities, benzene substances, metals and heavy metals in industrial grade CS2 are removed, and the process does not require distillation so as to provide characteristics of safety and environmental protection, wherein the benzene substances, the metals and the heavy metals can not be removed through rectification and other purification means.

Description

Technical field: [0001] The invention relates to the technical field of biology and new medicine, in particular to a method for purifying CS2 reagent. Background technique: [0002] At the current stage, carbon disulfide is required for solvent analysis in the steps of biomedical testing, water, soil, and air benzene series analysis. In order to reduce the interference of benzene series benzene bases on analysis and testing, there are currently benzene backgrounds in domestic production of carbon disulfide Too high and because carbon disulfide is a toxic environmental chemical, it is impossible to import high-quality carbon disulfide through normal channels (such as sigma low-benzene grade carbon disulfide, etc.). It is easy to boil and flammable, poor in safety, and it is difficult to completely remove benzene series, and it does not control metals and heavy metals. Invention content: [0003] The purpose of the present invention is to provide a method for purifying CS2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/26C01B32/72
Inventor 沈志希马静怡邵明华夏敏勇
Owner SHANGHAI ANPEL SCI INSTR
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