What should I do if there is precipitation when using saponified oil and defoamer?

It is normal for the defoamer to have precipitation, and it can be stirred evenly before use, or it can be added after dilution, but the amount added remains the same.

The saponified oil defoamer is composed of a variety of raw materials with special modification, which is a water-soluble and high-efficiency antifoam defoamer.

The saponified oil defoamer is made of specially modified polyether and fluorine-containing raw materials through a special process, which is easily soluble in water, and is especially suitable for continuous defoaming and foam inhibition under the conditions of high temperature, strong acid and alkali, high shear force and high pressure. It has very good high temperature resistance, acid and alkali resistance, no floating, no oil floating; It can be widely used for foam removal and inhibition in a wide range of harsh systems over a wide temperature range. Under normal circumstances, the addition of defoamer in strict accordance with the instructions will not produce precipitation, and the addition amount is the total amount, but the specific dosage should be determined after the process test, and it can also be used after mixing evenly with other powdered additives.

The defoamer for saponified oil can be used without stirring evenly, and it is recommended to pour it directly or add it dropwise when using; If used after layering and stirring, it will not affect the effect; The recommended dosage1-3 can be increased or decreased according to the specific situation.

In general, the saponified oil defoamer will not produce precipitation. It may be that impurities are mixed in the process of use. Situations that affect use. It is advisable to check it out in many ways.

The defoamer for saponified oil does not affect the foaming matrix in the process of defoaming, and there will be no precipitation, oil slick and precipitation under normal circumstances. Therefore, it is difficult to see if the defoamer is polluted by the outside world and affects the use of the defoamer.

The main reasons: 1. The amount of alkali is too much, 2. There is a problem with oleic acid, so it is recommended to be cautious in the proportion, and the choice is also very important.

Saponified oil in a nutshell: In the process of metal processing, heat treatment and heat exchange, in order to obtain the desired geometry, dimensional accuracy and surface quality of the workpiece, it is necessary to cut the workpiece material, pressure forming or heat treatment. Metalworking saponified oil is a general term for lubricating cooling materials or working media used in metalworking processes.

It is recommended to adjust the amount of addition, for:

When the defoamer for saponified oil is used, it is necessary to consult the relevant person to explain the situation encountered and the application system to find the cause.

Antifoams for saponified oils can be used.

In the process of metal processing, heat treatment and heat exchange, in order to obtain the desired geometry, dimensional accuracy and surface quality of the workpiece, it is necessary to cut the workpiece material, press forming or heat treatment. This is where saponified oil comes in.

Dangers of Foam:

1. It will affect the service life of the equipment.

2. It will lead to the slowdown of the production process and the increase of production costs.

3. It will affect the quality of the product.

4. It will affect the appearance of the product.

Causes of blistering in physical aspects:

1. The power of the equipment is not suitable.

2. Influence of temperature or pressure.

3. Stir when using.

Causes of blistering in chemical terms:

1. The added additives produce chemical reactions.

2. There are substances that are easy to bubble in the raw materials.

3. The water quality is soft.

Advice to customers:

Here's a suggestion for you. With the continuous change of raw materials, different ingredients, different ingredients, so Detianfeng suggests that consumers must understand their own application fields and foaming reasons when purchasing, and choose the right defoamer, so as to make the best use of things. It is recommended that manufacturers take a small sample for a test before purchasing saponified oil defoamer to see if it can solve your foam problem before purchasing, which can reduce your purchase risk.

It may be that your alkali content is too much, and then your oleic acid has a pure problem with acacia, it is recommended that you must be cautious in the ratio of the two, and your choice is also quite critical, otherwise the probability of layering is still very large, I don't know how much you can understand when you say this, and there are problems, I hope you can make it clear that it may be better.........

It must be unstable, the acid and base are not suitable, was it turbid at that time? The more refined the oil, the better the stable performance, and it is the most sensitive to temperature changes.

Usually, the defoamer is lightly stirred and then used, and it is best to add it to the final process of production when using, so that the defoamer will not be consumed too much due to production, and the foam can be eliminated in time when the customer uses the sparse cherry blossoms.

1.Saponified oil defoamer is an additive added to chemical oil to prevent foaming.

2.It should be added before lathering and stirring well.

If the amount of saponified oil defoamer is the total quantity, the suitable dosage should be determined after the process test; It can also be mixed evenly with other powdered additives.

1. Add on the way to the bubble.

2. Add defoamer to the cleaning agent before foaming.

1. Is the system of the defoamer suitable for your own system?

First, you need to consider whether the defoamer system is suitable for your industry. Because defoamers are oily and water-based, different defoamers are used in different industries.

Second, you need to consider the amount of alcohol or organic solvent in your system. Because it is the consensus that alcohol has a defoaming effect, there are sometimes some interference effects.

2. The applicable pH range of the defoamer.

Strong acid and alkali environments have harsh requirements for defoamers, which requires a description of the carrier environment with the defoamer manufacturer.

3. The long-term effect of the defoamer should be considered.

Some defoamers start out well and become much less effective after a while.

There are many influencing factors, at least two reasons:

1) The defoamer is capacitated by the surfactant, and 2) the main defoamer can be absorbed by the colloidal resin.

4. Defoaming ability in static conditions.

When the bubble-producing liquid flows back into the tank or directly into the drum, it can also be defoamed quickly.

5. Defoaming ability in dynamic situations.

1) Dynamic defoaming effect in a relatively closed small space. Because the gas is involved in entering the bubble, the external air pressure decreases for a short time, which is more conducive to the generation and stability of the bubble. Wetting agents and emulsifiers have a shrinking effect on the gas in the bubble, one is nothing, and trillions are considerable.

2) Open dynamic defoaming effect, single flexo printing is transformed into a glazing machine, and the narrow space of the glue roller and the ink roller is flipped at high speed, and the bubble speed is quite fast.

6. Applicability on the machine.

1) Temperature. The temperature change leads to the change of surfactant foam stabilization and defoaming.

2) Customer habits.

For more information, please consult the professionals of (Beijing) (Banner) Chemical Industry!!

Proper use of defoamers should be noted:

The selection of defoamer should be targeted, and the use environment, temperature, pH value and foaming medium should be understood.

First small test, then pilot test, to determine the best product to use and the best dosage. Stir well after delamination, even if it is not layered, stir well before use, do not dilute at will, if you do want to dilute, please use thick aqueous solution under guidance.

There are 3 steps to the correct use of the defoamer, and the following is the detailed operation of the correct use of the defoamer: to determine the suitability, a test should be conducted before use to determine the suitability. 2. Stir gently: Stir gently before use.

3. Use dilution and dosing, dilute 5-10 times with foaming solution or tap water and then add, the dilution is recommended to be used within 6 hours.

The defoamer is divided into oily and water-based, according to what you said, it should be caused by oil-based defoamer, just like a little oil on the clothes, it is easy to wash off, and you can wash it directly with laundry detergent or detergent. If it's a water-based defoamer, it's easier to wash.

Problems that should be paid attention to when using defoamers:

Whether a good defoamer plays a good role, in addition to the reason of the defoamer itself, also depends on whether it is added appropriately and correctly. Therefore, the following points should be paid attention to when using it.

When using defoamers, pay attention to the condition of the slurry. Such as acidity and alkalinity, temperature, what kind of slurry, etc., choose a defoamer according to the conditions. For example, fatty acids may be defoamers in acidic conditions and foaming agents in alkaline conditions, which work well at low temperatures but may be ineffective at high temperatures.

Pay attention to where and how much defoamer is added. When using the defoamer, it should be added as far away from the foam as possible, so that the defoamer can be well dispersed, and the dispersion speed varies with different products. The general dosage is in pulp, and the dosage of the system with serious foam is up to pulp, which is also related to different products.

It is often more cost-effective to use more than two defoamers than to add a single defoamer at a higher ratio, and to add both separately at a distance from each other. For example, adding one defoamer in front of the beater and another in front of the mesh box is more effective than adding the same amount of a single defoamer.

Some defoamers have certain drawbacks that should be taken into account when using them. For example, amide defoamers may cause precipitation and clog the seams of the sieve plates, resulting in fish-eye spots on the paper surface due to poor dispersion. Some defoamers may also be active agents that interfere with sizing agents and reinforcing agents.

So pay special attention when using it.

1. Oil-in-water emulsion can be diluted arbitrarily, but at the same time, the stability of the emulsion will also decrease sharply, such as delamination;

2. When diluting, please add water to the defoamer and stir slowly;

3. Since the emulsion is the most stable at the original concentration, the diluted emulsion must be used up in a short time;

4. The emulsion is sensitive to frost and temperatures higher than 40 °C and is easy to be damaged;

5. To prevent frost, the emulsion that has been frozen can be carefully frosted, but it must be tested before further use;

6. Long-term strong oscillation or strong shear (such as the use of mechanical pumps, homogenizers, etc.) or stirring will destroy the stability of the emulsion;

7. Increasing the viscosity of the emulsion or adding thickener can improve the stability of the emulsion.

Saponification reaction defoamerIt is mainly suitable for defoaming of high-temperature, strong alkali and high-viscosity systems. The saponified oil defoamer also overcomes the shortcomings of general defoamers and emulsified oils, and can be mixed with various lubricating fluids without floating on the surface. In addition, the shear resistance is particularly strong in the grinding process, and when the saponified oil is against water, there will be no oil drifting phenomenon, and no oil scale will be formed on the surface of the machine tool.

The foaming time is long, and the cause of foaming: there are environmental factors, improper dosage, and the operation not only produces foam.

Causes of blistering in physical aspects:

1. The power of the equipment is not suitable.

2. Influence of temperature or pressure.

3. Stir when using.

Causes of blistering in chemical terms:

1. The added additives produce chemical reactions.

2. There are substances that are easy to bubble in the raw materials.

3. The water quality is soft.

The saponification reaction defoamer is composed of a compound surface containing a variety of specially modified raw materials, which is a water-soluble and high-efficiency antifoam defoamer, especially suitable for the occasion of continuous defoaming and foam suppression under the conditions of high temperature, strong acid and alkali, high shear force and high pressure. It has good high temperature resistance, acid and alkali resistance, no floating, no oil floating; It can be widely used for foam removal and inhibition in a wide range of harsh systems over a wide temperature range.

The first point is to figure out what the system you need to defoam is, whether it is a water-based system, an oil-based system, or other mixed systems.

The second point, on the basis of the previous step, it is necessary to understand what is the applicable pH range of this defoamer, and different pH ranges mean that the use environment is different, because many industries have high temperature environment, strong alkali and strong acid environment or shear environment, etc.

The third point, before purchasing, Guangbai defoamer recommends that you use some samples for testing, which is also the most direct and effective way, Guangbai defoamer samples are free, consumers can use samples according to their actual situation, the reason for using samples is to clearly understand the defoaming effect of this defoamer and the length of time to inhibit foam regeneration.

Under normal circumstances, after confirming that the defoamer has a good effect on their products, for manufacturers, in order to save time and trouble, they will buy more at one time, but in this way, there will be a long-term storage, but it is necessary to pay attention to the use time, can not be exposed to the sun, should be placed in a cool and dry place, opened or diluted defoamer, it is best to use it within 24 hours, otherwise it will affect the effect of defoaming.

There are four major points to pay attention to in defoamers:

The amount used. Use different proportional amounts according to different scenarios, and determine the optimal amount.

Proper stirring, slow stirring helps the defoamer to exert its important defoaming effect.

Dilution, according to different liquids to do different dilution, high content of emulsion can be properly diluted, otherwise there will be demulsification stratification.

Environmental factors. The selection of defoamer should take into account the defoaming performance and compatibility issues, and be adjusted according to different environments, temperatures, and pH values.

You need to pay attention to whether the ingredients of the defoamer are consistent with your own products, and you want to ask the merchant, it will be better to buy after trying the sample.

When using, pay attention to the addition time, add point, and add amount, and add according to the instructions provided by the merchant, which will generally have the best effect of use.

Pay attention to the pH of the defoamer and the product to see if it is appropriate.