JPS58202A - Removing method for solvent in solution and suspension - Google Patents

Abstract

PURPOSE:To remove solvents from he inside of solns. econimically by adding the solns. into high viscoelastic bodies under kneading beforehand with solvents and kneading these together. CONSTITUTION:High viscoelastic bodies having intrinsically no affinity to solvents are beforehand kneaded under high shearing forces, and solns. are added to these and the kneading is continued, whereby the solvents are removed from the solns. and the degree of concn. is increased. For example, in one embodiment, an aq. 10% gelatin-contg. soln. is kneaded for 30min. at a 40rpm kneader in order to concentrate an aq. gelatin soln., and the concn. of the geletin when this is kneaded at about the flow rate at which the surface under kneading is visible is 16%.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention adds El wrinkles to the highly viscoelastic material in the crosstalk in advance, and
The KWR is to remove *** from the solution by kneading the H-casing with a highly viscoelastic material.

Evaporation, steaming, dialysis, permeation, etc. have been used for a long time to remove small amounts of solvent in solutions, but all of these methods consume a large amount of heat. However, it is difficult to say that it is always economically satisfactory as it was expensive.The present invention has developed an industrially useful solvent lI* method that does not have the above-mentioned disadvantages. **Give me a pot of solvent*
** If you decide to use a 'C' with zero solvent and essential KII
Surprise - Highly viscoelastic material is trained under high shear force in advance, and #
Add *** to L and have a training session! Strangely enough, I am able to continue working.

The highly viscoelastic materials mentioned here include Korean tar, asphalt, atactic polybupylene, and Gilibiel alcoholic water II.
liquid, (latin water**, m hot water solution O), a substance that exhibits high v&Ili elasticity at a certain temperature.

When iui is lipophilic, a hydrophilic high S elastic material is suitable, and when the solvent is hydrophilic, a lipophilic high viscoelastic material is suitable.

Next, in the case of a highly viscoelastic material and a material that exhibits stringiness when a high IIWII force is applied.

The method of applying high shearing force to a highly viscoelastic body using #C of the present invention is to apply a high shearing force and, if necessary, to heat and cool J by X-rays. , or a device.

Kneader, Pampa V-now, Stari Hatakekai Press, etc.
It is convenient to use KM%p, which gives even higher viscoelasticity, and even if you use other methods such as catfish temperature, adding a third substance, etc. There is no one company that specifies a specific method.In short, any method that exhibits stringiness under high shear force will suffice.

The present invention relies on adding and kneading a highly viscoelastic material Nakazawa to which the solution is kneaded under high shear force.
* Although the mechanism by which this occurs is not necessarily clear, S* is first mixed with t111 in the highly viscoelastic material being kneaded, and
It is thought that this is because during the II kneading, these molten particles are finely divided into small particles, a high shear force is applied to these particles, and the solvent is released from the system in a liquid state.

The induced wR will be specifically explained below in Examples.

Example 1. Water Wk * 1300gr of 60/80 asphalt was mixed in a 5t kneader (ii1 rotation number 5 Or, p, m) K in advance, the temperature of the system was kept at 50℃, 1000g of water was added to this, and asphalt Nakazawa water was mixed. I made 400 books Wki11. This system is a slightly brownish black viscoelastic body.

This system is opened so that the inside of the kneader can be seen, and gradually (from 200 to 300 f.
Fi) Added water, and added summer and 2500 bottles of water for about 2 hours. The temperature of the O mixed Il system in the kneader was maintained at 50°C.

After 2 hours, the amount of water dispersed from the kneader was 660 = 500 g. Therefore, 174 billion of water was lost and the kneader O was left in the 190th year, and the water that came out from the top condensed and was installed in the kneader with an SNC*M condenser. Suisha 2500 FF101111 lost in the same experiment
15gr”e&-z&.

Example 2 Glycerin Water**omm 10sO/9-9-1-b**ll (Water) 10
00ael was added to 1300 gr of 60/80 ascension (60/80 as 7 al) which had been heated in advance at 50° C. in an upper-lowering ostz-goo and continued to mix.

Kneader - Kg is added to Amagi AS to make sure that the kneading image is firm from the top.

Adding 9 ml of water to the greens present in the kneader over time,
The O-glycerin concentration therein was measured.

The result is C) Ml below.

Elapsed time (minutes) Glycerin concentration (%) Q
12.8 20 13.5 30 15.6 Example 1 Treatment of dyeing wastewater Dark red dye synthesis factory wastewater with a TOC of approximately 8000 p, p, m was preliminarily treated at 50-55°C and 40 r, p, m. The mixture was gradually added to 1500 gr of 60/80 As-7 Alto during kneading and kneaded with the top cover removed so that the mixed wire surface of the kneader could be seen. (The content of the kneader is 5 tons.) In each case, the dye wastewater was treated with Asphal F for 4 to 5 minutes at 100'OC without changing it, and the liquid was transferred to the kneader.
Medium> The amount of liquid taken out and the TOC were measured.

The results are shown below.

M Processed waste liquid amount (b) TC) C (p, p, m) 1
400 4800 2 350 7000 3 500, 56004 40
0 8000 5 400 62006
350 56007
400 80008
500 67009 450
700010 350
The amount of waste wave processed by 6900 varies by a thousand because the kneader is used in batch IIK, but approximately 5001 to 600 W'1D water is lost.
The reason why the TOC decreases regardless of whether the livestock is shed is because solutes are absorbed into the highly viscoelastic body.

Example 4 Treatment of dye wastewater 1 In an experiment similar to that shown in Example 3, transparent polyethylene 110II was placed on the top of the kneader so that the Wk* water refluxed and returned to the kneader.

As a result, a large amount of water droplets adhered to the top lid, and this water was clear and colorless. In addition, I was able to maintain a good balance between OII and OY.

Furthermore, two holes were made at symmetrical positions on the side of this top cover, and air preheated to 30℃ was pumped through one side at a rate of 50jy/mi.
The air was passed through in an amount of n, and on the other hand, air was expelled in an amount of o. This $
45t: It was #Izuresha 650 book of water.

Examples & Sludge Process 1 2% raw stone was added to activated sludge (moisture content: 85%), and this was mixed in a kneader at a temperature of about 100°C until the mixture was visible. In this case, the kneader is open to the atmosphere. This mixture initially had a high viscosity and was a yellow-brown kneaded body, but it gradually increased in viscosity and finally turned into a yellow-brown kneaded body.
fk! ) Moro〈1kg and polished. Moisture content a6 in this state
It is possible to make a cliff with 2 whispers.

Example 6 Concentration of gelatin aqueous solution Concentrating gelatin aqueous solution is not always easy as it is not possible to increase the physical properties required for gelatin. 'C 40 r
, p, m = - The mixture was kneaded for 30 minutes at a flow rate at which a cross line pattern was visible. At this time (latin concentration F116%).

Claims (1)

[Claims] Add and knead 11 liters (including a suspension case, the same shall apply hereinafter) to a highly viscoelastic body, and add a small amount of solvent (
A method of *** including a dispersion medium, the same applies hereinafter].