| Customization: | Available |
|---|---|
| Color: | White |
| Appearance: | Liquid |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Red mud settling process for alumina production can break bubbles quickly,and can effectively inhibit foam growth Polyether defoamer
Red mud settling defoamer is a kind of chemical agent specially used to remove foam during red mud settling. Red mud is the waste produced in the process of alumina production, and its sedimentation separation is a complex physicochemical process. In this process, due to the interaction between the red mud particles and the solution, it is easy to produce foam, which affects the sedimentation efficiency and quality. Therefore, the use of defoamer can effectively reduce the foam generation, improve the sedimentation tank productivity and overflow quality.
The action mechanism of defoamer mainly includes destroying the surfactant molecules, making them lose their foam properties, so as to effectively reduce the generation of foam. In addition, defoamer can also improve treatment efficiency, protect equipment, and improve effluent quality. When selecting the defoamer, it should be selected according to the specific treatment situation and requirements to ensure the treatment effect and reduce the treatment cost.
| Item | Index |
| Appearance | Colorless or light yellow transparent liquid |
| PH (5% water solution) | 4.5-7.5 |
| Viscosity(25ºC) | ≤500mPa·s |
| Density(25ºC) | 0.95-1.05g/ml |
The surface foam of the first phase thickener The surface foam of the second phase thickener
This product has good continuous bubble inhibition, High degassing efficiency, a full benefit.
1. The amount is small, the solid content is high, the defoaming speed is fast, in the decomposed alumina solution, only a small amount of defoaming agent is needed, and the defoaming time is less than 10 seconds.
2.The chemical properties are stable, not easy to react with organic matter, but not with the industrial production cycle and a large amount of consumption, can save a lot of energy.
3.Has a good anti-foaming effect, and under the premise of not reducing the decomposition rate, there is basically no effect on the product decomposition rate and quality, but also effectively improve the quality of alumina products, bauxite dissolution, red mud settling array, aluminate solution decomposition, mother liquid evaporation and other processes have no adverse effects.
4.In the alumina production process of concentrated aluminum alkali solution, hydrolysis will not occur, long-term contact will not affect their bubble inhibition. Moreover, while defoamer is defoamer, it will also improve the purity of the overflow liquid during the separation of red mud, increase the decomposition half of aluminate solution by 0.6%~3.1%, increase the sedimentation rate of pulp by 0.6~5.5 times, and accelerate the evaporation of mother liquor by 3%~10%.
-Excellent dispersion performance
-Excellent stability and compatibility
-The performance is obviously better than that of traditional polyether defoamer
-Excellent service and cheaper price.
Shanghai Guanru Chemical Co., Ltd. is a professional enterprise in the research, production and sales of defoaming agent The defoamer products developed and produced by the company are widely used in pulp and paper industry, textile print ing and dyeing industry, architectural coating industry, surface cleaning industry, chemical industry, petroleum industry, sewage treatment industry, etc. Quality is excellent, products are superior; supply is timely, and service is thoughtful! Is a professional defoamer manufacturer.
Supply "Excellent Quality + Reasonable Price + Specialized Services" is our development tenet. The company have scientific management, strong technology and sincerely service system. We welcome customers all over the world visit for business negotiation on the basic of sincerely cooperation and mutual benefit!
SHANGHAI GUANRU CHEMICAL CO., LTD.
1. Why do we need to use defoamer to prepare alumina by modified Bayer process?
First of all, we should understand the difference between the Bayer method and the improved Bayer method. The Bayer method is mainly to dissolve the ore with sodium hydroxide by heating, and then get the white alumina powder through the process of "filtration - acid treatment - aluminum hydroxide precipitation - filtration - strong hot aluminum hydroxide". The improved Bayer rule is to obtain high purity aluminate solution through deep desilication, iron removal and other purification processes, reduce the inclusion of impurities, and obtain alumina through calcination, grinding and other processes.
Due to the need for a lot of chemical reactions in the preparation process, coupled with the effect of external agitation, a large number of bubbles are easily produced in the alumina solution system, which has a certain impact on the dissolution rate and red mud yield of the system, so it is necessary to use alumina defoamer to control the foam in time and improve the production efficiency.
2. What are the specific characteristics of alumina defoamer?
Alumina defoamer is a kind of refined non-silicon emulsion defoamer, which is milky white or transparent liquid in appearance. It has strong defoamer and defoamer ability, and can withstand high temperature and high pressure and strong acid and alkali. Adding a small amount of alumina defoamer to the foaming system helps to make the alumina hydroxide better achieve crystal transformation at high temperature, maintain the balance of liquid amount in the circulation system, and evaporate and concentrate to meet the requirements of the Bayer method of dissolving bauxite to prepare the original pulp.
){kind=link}