![]() ![]() Meanwhile, the function of negative pressure suction is added, so that the extraction liquid can completely flow back, the loss of the solvent and the extraction substance is reduced, the device is quickly started and stopped, and the operation efficiency and the yield are improved. ![]() The utility model discloses carry out the design improvement to the soxhlet extractor, design negative pressure suction device on extracting the bottle, set up the piston simultaneously on steam connecting pipe, the normal extraction operation of being convenient for and the switching of negative pressure suction operation. The utility model discloses a soxhlet extractor of extract is retrieved in vacuum, including top-down consecutive condenser, extractor, draw the bottle, be equipped with siphon and steam connecting pipe on the extractor, set up control piston 1 on the steam connecting pipe, draw bottle one side and be provided with the temperature sensor interface, the opposite side passes through negative pressure interface and vacuum pump system connection, and negative pressure interface front end is provided with control piston 2. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Jinan Yuxing Chemical Co Ltd filed Critical Jinan Yuxing Chemical Co Ltd Priority to CN202021323336.9U priority Critical patent/CN212941566U/en Application granted granted Critical Publication of CN212941566U publication Critical patent/CN212941566U/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Jinan Yuxing Chemical Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor 仝宇 宋代磊 王�琦 徐梦 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN202021323336.9U Other languages Chinese ( zh) Google Patents Soxhlet extractor for vacuum recovery of extraction liquidĭownload PDF Info Publication number CN212941566U CN212941566U CN202021323336.9U CN202021323336U CN212941566U CN 212941566 U CN212941566 U CN 212941566U CN 202021323336 U CN202021323336 U CN 202021323336U CN 212941566 U CN212941566 U CN 212941566U Authority CN China Prior art keywords extractor negative pressure extraction vacuum soxhlet extractor Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN212941566U - Soxhlet extractor for vacuum recovery of extraction liquid It would be, however, better to use a syringe pump but not everybody has one of those.CN212941566U - Soxhlet extractor for vacuum recovery of extraction liquid I suppose that for some reason it is difficult to perform a slow addition through a funnel in this case. In any case, maintaining reflux for a long time will ensure that everything goes into the flask. If the compound is not colored, it will not be easy without opening the system. How to know that the addition is complete is another story. In fact, usually it is a loose tube with a wide opening on the top. Normally the tube goes to the very bottom of the thimble. The saturated solution of the compound is then placed in the thimble and when reflux starts, the solvent is condensed, falls into the tube and returns to the flask carrying over the compound. What they are possibly referring to is a liquid-liquid extraction apparatus, specifically the one for extracting with solvents lighter than water: The compound is dissolved in ether, so a Soxhlet is of no use since it is for solids. In my opinion the intention is to have a very slow addition of the reagent to the hydride. ![]()
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