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Device for removing MIBK (Methyl Iso Butyl Ketone) from raffinate for MIBK extraction and zirconium and hafnium separation

A raffinate, removal technology, applied in distillation separation, separation method, improvement of process efficiency, etc., can solve problems such as low cost, and achieve the effects of reducing production cost, improving product quality, and accelerating separation efficiency.

Inactive Publication Date: 2012-03-28
JIANGXI KINGAN HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a zirconium and hafnium separation raffinate deoiling device to reduce the consumption of extractant in order to solve the problems of low cost, environmental protection and continuous recovery of MIBK in the raffinate of zirconium and hafnium extracted and separated by MIBK. improve product quality

Method used

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  • Device for removing MIBK (Methyl Iso Butyl Ketone) from raffinate for MIBK extraction and zirconium and hafnium separation
  • Device for removing MIBK (Methyl Iso Butyl Ketone) from raffinate for MIBK extraction and zirconium and hafnium separation
  • Device for removing MIBK (Methyl Iso Butyl Ketone) from raffinate for MIBK extraction and zirconium and hafnium separation

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Experimental program
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Effect test

Embodiment 1

[0022] The cylinder shell 1 has a diameter of 1m and a total height of 3.5m. The skirt support 2 at the lower part of the cylinder is 0.5m high. The upper support grid 6 is installed at a height of 0.5m above the lower support grid 7, and the liquid level Maintain the height at 1m from the heating coil, install a liquid distributor 12 at a height of 0.5m above the liquid level, and communicate with the raffinate inlet, and install a screen partition 14 at a height of 0.5m above the liquid distributor , the water phase enters the deoiling device from 0.3m below the screen partition. After installation, open the feed valve, raise the liquid level to 1m above the heating coil, stop feeding, turn on the steam, and start blowing at the same time After 1 hour, the feed valve and the discharge valve are opened at the same time, and the flow rate of the incoming and outgoing materials is the same. The oil removal device starts to run continuously. After 3 hours, the discharge port is s...

Embodiment 2

[0024] The cylinder shell 1 has a diameter of 1.5m and a total height of 5.5m. The skirt support 2 at the lower part of the cylinder is 1.0m high, and the upper support grid 6 is installed at a height of 1.0m above the lower support grid 7. The level height is maintained at a distance of 1.5m from the heating coil, a liquid distributor 12 is installed at a height of 1.0m above the liquid level, and is connected to the raffinate feed inlet, and a screen separator is installed at a height of 1.0m above the liquid distributor. Plate 14, the water phase enters the shell 1 from 0.4m below the screen partition. Open the feed valve, raise the liquid level to 1.5m above the heating coil, stop the feed, turn on the steam, and start blowing at the same time. After 1 hour, open the feed valve and the discharge valve at the same time, and the flow rate of the incoming and outgoing materials is the same. The degreasing device started to run continuously. After 3 hours, the discharge port w...

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Abstract

The invention discloses a device for removing MIBK (Methyl Iso Butyl Ketone) from a raffinate for MIBK extraction and zirconium and hafnium separation. The device comprises a shell, a condenser and a phase-separating barrel, wherein a removed organic raffinate outlet is formed at the bottom inside the shell; an upper supporting grid plate and a lower supporting grid plate are crosswise arranged on a lower part inside the shell; a gas inlet is formed on a side wall of the shell between the upper supporting grid plate and the lower supporting grid plate; a heating device is arranged on the upper supporting grid plate; a liquid distributor with a raffinate feeding port is arranged at the top inside the shell; a steam overflow port is mounted at the top of the shell and is connected to the condenser; the phase-separating barrel is used for separating an organic phase from a water phase; the organic phase is recycled; and an output pipeline of the phase-separating barrel is connected to the shell. The device provided by the invention is beneficial to increasing a contact area between a gas phase and a liquid phase and promoting a MIBK removing efficiency, thereby achieving a purpose of quickly removing oil. The device is simple in structure, convenient and practicable, and is characterized by capabilities of increasing production efficiency, lowering production cost, promoting product quality, and the like.

Description

technical field [0001] The invention relates to a device for removing MIBK in the raffinate of zirconium and hafnium extracted and separated by MIBK. Background technique [0002] Zirconium and hafnium have unique nuclear properties and are important strategic materials, but they are often associated together in the formation of minerals. Therefore, zirconium and hafnium must be separated to use them in nuclear reactors. At present, there are two main processes for the separation of zirconium and hafnium, extraction separation and molten salt rectification, of which molten salt rectification is only used by a French company, and extraction separation is divided into N235-P204 system, TBP-HNO 3 +HCl mixed acid system, MIBK-HCNS system, in which Japan mainly uses the N235-P204 system, the United States uses the MIBK-HCNS system, and the zirconium and hafnium separation projects under construction in China mainly use the MIBK-HCNS system. Using the MIBK-HCNS system to separate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/00C22B3/26C22B34/14
CPCY02P10/20
Inventor 罗方承黄桂文孙小龙邱才华吴江
Owner JIANGXI KINGAN HI TECH
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