CN101638869A - Oily defoamer - Google Patents
Oily defoamer Download PDFInfo
- Publication number
- CN101638869A CN101638869A CN200810012582A CN200810012582A CN101638869A CN 101638869 A CN101638869 A CN 101638869A CN 200810012582 A CN200810012582 A CN 200810012582A CN 200810012582 A CN200810012582 A CN 200810012582A CN 101638869 A CN101638869 A CN 101638869A
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- CN
- China
- Prior art keywords
- defoamer
- oily
- paraffin
- kerosene
- castor oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to an oily defoamer capable of being used as a black liquor defoamer. The oily defoamer is prepared from the following compositions: kerosene, paraffin, octyl and sulfonated castor oil of which the weight ratio is 100-240:70-150:50-130:80-120. The oily defoamer has weak foam inhibiting capacity but strong defoaming capacity, can be combined with other defoamers for use to reduce cost, and has wide application.
Description
Technical field
The present invention relates to a kind of defoamer, relate in particular to a kind of oily defoamer, can be used as black liquor defoamer and use.
Background technology
The consumption of defoamer in paper industry is little, but its effect can not be ignored.In whole pulp and paper industry process, sequence of operations behind the boiling blowing, as washing, screening, bleaching, concentrate, pulp feeding system, top sizing, coating, black liquor recovery etc., all be subjected to the influence of foam to some extent, disturb ordinary production, paper quality is descended, when serious production can't be gone on.The removing method of foam mainly contains chemical method, physics method and Mechanical Method.Chemistry froth breaking method is exactly to add chemical substance (defoamer) in process of production to eliminate foam; The utilization of physical defoaming method is left standstill, is heated or reduce pressure and eliminates foam; The mechanical defoaming method adopts mechanical force to make lather collapse exactly.Physics method and Mechanical Method are simple to operate, but passive, only take stopgap measures and do not effect a permanent cure, and effect is undesirable.Using the most widely used at present is chemical froth breaking method, promptly uses the formation of foam in the defoamer control paper-making process and abolishes established foam.
In pulping process, owing to contain natural materials such as aliphatic acid, resin acid in the pulping raw material, foamers such as generation fatty acid soaps, the resin acid soaps of reacting with chemicalss such as the caustic soda that adds, akali sulphide, add the steady bubble effect of polymer substances such as cellulose, when the stream of slurry send and mixes, bring a large amount of air into slurry system and just formed a large amount of stable foams, bring very big difficulty for subsequent handling such as washing, conveying, bleaching etc., cause laitance and pulp quality is reduced.The factory that has adopts " clear water is pressed bubble ", and this method is to certain effect that defoams, but the de-bubble effect is unsatisfactory.Pulping process washs foaming such as fatty acid soaps that the black liquor that gets off also contains high concentration, resin acid soaps and surely steeps material, is handled easily and improves the paper pulp alkali recovery, also must carry out defoaming treatment to black liquor.
In the slip of machine hand's preface, also contain to the pulping process slip in similar foaming and steady bubble material, in operation also can entrained air and produce foam, the existence of foam has a significant impact paper, make that degree of sizing is poor, the cross direction ration homogeneity is poor, paper spot, diaphanous spot and small holes etc. occur, even causes disconnected paper.In addition, produce a large amount of foams in the paper plain boiled water, also should add defoamer and get rid of, to improve the rate of recovery of paper pulp if copy.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art,, make meticulously through the optimization of C design, a kind of oily defoamer is provided, solved the unfavorable problem of defoamer defoaming effect in the prior art, and easily be used, used flexible with other defoamer.
Technical scheme of the present invention is as follows:
It is formulated by weight by following compositions, kerosene: paraffin: octyl group: sulfonated castor oil=100-240: 70-150: 50-130: 80-120.
The preferred weight ratio of raw material of the present invention is kerosene: paraffin: octyl group: sulfonated castor oil=170: 102: 78: 93.
Advantage of the present invention and beneficial effect are as follows:
Though the present invention press down the bubble ability relatively a little less than, froth breaking is very capable, and can with the compound use of other defoamer, reduced cost, and of many uses.
The specific embodiment
Embodiment 1
The present invention is formed by weight configuration by following composition:
Kerosene: paraffin: octyl group: sulfonated castor oil=170: 102: 78: 93.
Embodiment 2
It is to form kerosene by following composition by weight configuration: paraffin: octyl group: sulfonated castor oil=100: 70: 50: 80.
Embodiment 3
It is to form kerosene by following composition by weight configuration: paraffin: octyl group: sulfonated castor oil=240: 150: 130: 120.
Embodiment 4
It is to form kerosene by following composition by weight configuration: paraffin: octyl group: sulfonated castor oil=136: 104: 50: 120.
Claims (2)
1, a kind of oily defoamer is characterized in that by following compositions by weight formulated kerosene: paraffin: octyl group: sulfonated castor oil=100-240: 70-150: 50-130: 80-120.
2, oily defoamer according to claim 1 is characterized in that the weight ratio of above-mentioned each raw material is kerosene: paraffin: octyl group: sulfonated castor oil=170: 102: 78: 93.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810012582A CN101638869A (en) | 2008-08-01 | 2008-08-01 | Oily defoamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810012582A CN101638869A (en) | 2008-08-01 | 2008-08-01 | Oily defoamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101638869A true CN101638869A (en) | 2010-02-03 |
Family
ID=41614030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810012582A Pending CN101638869A (en) | 2008-08-01 | 2008-08-01 | Oily defoamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101638869A (en) |
-
2008
- 2008-08-01 CN CN200810012582A patent/CN101638869A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100203 |