DE1042793B - Process for separating soot from soot suspensions in water - Google Patents
Process for separating soot from soot suspensions in waterInfo
- Publication number
- DE1042793B DE1042793B DEN13999A DEN0013999A DE1042793B DE 1042793 B DE1042793 B DE 1042793B DE N13999 A DEN13999 A DE N13999A DE N0013999 A DEN0013999 A DE N0013999A DE 1042793 B DE1042793 B DE 1042793B
- Authority
- DE
- Germany
- Prior art keywords
- soot
- water
- organic liquid
- suspensions
- emulsion
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 19
- 239000004071 soot Substances 0.000 title claims description 17
- 239000000725 suspension Substances 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 claims description 17
- 150000002430 hydrocarbons Chemical class 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- 239000008346 aqueous phase Substances 0.000 claims description 6
- 239000007900 aqueous suspension Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 21
- 239000003921 oil Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- KFUSEUYYWQURPO-UHFFFAOYSA-N 1,2-dichloroethene Chemical group ClC=CCl KFUSEUYYWQURPO-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
- C09C1/58—Agglomerating, pelleting, or the like by wet methods
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/36—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using oxygen or mixtures containing oxygen as gasifying agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/487—Separation; Recovery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Colloid Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Verfahren zum Abtrennen von Ruß aus Rußsuspensionen in Wasser Die Erfindung bezieht sich auf ein Verfahren zum Abtrennen von Ruß aus Suspensionen desselben in Wasser, gemäß welchem diese Suspensionen mit einem flüssigen Kohlenwasserstoff in Berührung gebracht und die gebildeten Agglomerate aus Ruß und Kohlenwasserstoff von der wäßrigen Phase abgetrennt werden.Process for separating carbon black from carbon black suspensions in water The invention relates to a method for separating soot from suspensions the same in water, according to which these suspensions with a liquid hydrocarbon brought into contact and the formed agglomerates of soot and hydrocarbon be separated from the aqueous phase.
In den britischen Patentschriften 327 979, 734 475 und 7=11 135 sind Verfahren dieser Art beschrieben. Nach diesen Patentschriften wird eine Suspension von Ruh in Wasser mit einer mit Wasser nicht mischbaren organischen Flüssigkeit vermischt, die gegenüber Ruß eine stärkere Adhäsion besitzt als Wasser, insbesondere mit einem flüssigen Kohlenwasserstoff wie Pentan, Benzol, Toluol oder leichtem Naphtha. Der Ruß und der Kohlenwasserstoff bilden Agglomerate, z. B. in Form von Kügelchen, die nur eine geringe Menge Wasser enthalten. Die Kügelchen schwimmen auf der Oberfläche und können von der wäßrigen Phase leicht durch Sieben. Filtrieren, Dekantieren od. dgl. getrennt werden. Die Bildung von Agglomeraten kann durch die Anwesenheit geeigneter oberflächenaktiver 1,Iittel begünstigt werden. Der Ruß kann gewünschtenfalls durch Verdampfen des Kohlenwasserstoffs in reinem Zustand erhalten werden.In British patents 327,979, 734,475 and 7 = 11,135 This type of procedure is described. According to these patents, a suspension von Ruh in water with an organic liquid immiscible with water mixed, which has a stronger adhesion to soot than water, in particular with a liquid hydrocarbon such as pentane, benzene, toluene or light naphtha. The soot and the hydrocarbon form agglomerates, e.g. B. in the form of beads, which contain only a small amount of water. The beads float on the surface and can easily be sieved from the aqueous phase. Filtration, decanting or Like. Be separated. The formation of agglomerates can be facilitated by the presence of suitable surface-active 1, Iittel are favored. The carbon black can if desired through Evaporation of the hydrocarbon can be obtained in a pure state.
Es wurde nun gefunden, daß die Dauer der Berührung zwischen der wäßrigen Suspension und der mit Wasser nicht mischbaren organischen Flüssigkeit stark verkürzt werden kann, wenn die organische Flüssigkeit der wäßrigen Rußsuspension in Form einer wäßrigen Emulsion zugesetzt wird.It has now been found that the duration of contact between the aqueous Suspension and the water-immiscible organic liquid is greatly reduced can be when the organic liquid of the aqueous carbon black suspension in the form is added to an aqueous emulsion.
Eine Emulsion dieser Art kann z. B. erhalten werden durch sehr inniges Vermischen der organischen Flüssigkeit mit Wasser oder einer wäßrigen Phase, z. B. in einem Propellermischer, Turbomischer od. dgl. Das Gewichtsverhältnis zwischen der Menge der Ölphase und der wäßrigen Phase in der Emulsion kann innerhalb weiter Grenzen schwanken, nämlich von etwa 1:100 bis etwa 100: 100. Das Gewichtsverhältnis liegt vorzugsweise zwischen 20: 100 und 60: 100. In vielen Fällen ist die Stabilität der so hergestellten Emulsion bereits ausreichend. Gewünschtenfalls kann die Stabilität der Emulsion verbessert werden, indem man den PH-Wert der wäßrigen Phase etwas erhöht, z. B. auf etwa 9, oder durch Zusetzen geeigneter oberflächenaktiver Mittel. Die mit Wasser nicht mischbare organische Flüssigkeit, die bei dem Verfahren gemäß der Erfindung verwendet wird, ist vorzugsweise ein Kohlenwasserstoff, obwohl halogensubstituierte Kohlenwasserstoffe wie Tetrachlorkohlenstoff, Chloroform. Dichloräthylen und Trichloräthylen ebenfalls verwendet werden können.An emulsion of this type can e.g. B. obtained by very intimate mixing of the organic liquid with water or an aqueous phase, e.g. B. in a propeller mixer, turbo mixer or the like. The weight ratio between the amount of oil phase and the aqueous phase in the emulsion can vary within wide limits, namely from about 1: 100 to about 100: 100. The weight ratio is preferably between 20: 100 and 60: 100. In many cases the stability of the emulsion produced in this way is sufficient. If desired, the stability of the emulsion can be improved by increasing the pH of the aqueous phase somewhat, e.g. To about 9, or by adding suitable surfactants. The water-immiscible organic liquid used in the process according to the invention is preferably a hydrocarbon, although halogen-substituted hydrocarbons such as carbon tetrachloride, chloroform. Dichlorethylene and trichlorethylene can also be used.
Die Kohlenwasserstoffe, die gemäß der Erfindung verwendet werden können, sind z. B. Pentan, Hexan, Heptan, Benzol, Toluol od. dgl. Es können auch Gemische von Kohlenwasserstoffen wie Kohlenwasserstofföldestil_late oder -rückstände, z. B. Benzin, Leuchtöl, Gasöl und Rückstandsheizöle, verwendet werden. Spaltprodukte, z. B. durch Spalten erhaltenes schweres Gasöl, sind ebenfalls geeignet.The hydrocarbons that can be used according to the invention are z. B. pentane, hexane, heptane, benzene, toluene or the like. Mixtures can also be used of hydrocarbons such as hydrocarbon oil distillates or residues, e.g. B. gasoline, luminous oil, gas oil and residual heating oils can be used. Fission products, z. Heavy gas oil obtained by cracking, for example, are also suitable.
Die Menge der in Form einer Emulsion verwendeten organischen Flüssigkeit beträgt etwa 0,8 bis 10 g Flüssigkeit pro g des in der wäßrigen Suspension enthaltenen Rußes.The amount of organic liquid used in the form of an emulsion is about 0.8 to 10 g of liquid per g of that contained in the aqueous suspension Soot.
Bei Anwendung einer Emulsion niedrigviskoser organischer Flüssigkeiten, z. B. Benzol, wird der Ruß rasch aus der wäßrigen Suspension, z. B. in einigen wenigen Sekunden, abgetrennt. Bei Anwendung schwerer Kohlenwasserstofföle, z. B. Gasöl, ist eine etwas längere Berührungszeit erforderlich. Wenn leichte Kohlenwasserstoffe, z. B. in einer Menge von 3 g pro g Ruß, verwendet werden, wird ein dem äußeren Aussehen nach pulverförmiges Produkt gebildet. Wenn Gasöl benutzt wird, werden dagegen Kügelchen gebildet. Diese Kügelchen aus Ruß und Gasöl können z. B. mit Heizöl vermischt werden.When using an emulsion of low-viscosity organic liquids, z. B. benzene, the soot is quickly removed from the aqueous suspension, e.g. B. in a few Seconds, separated. When using heavy hydrocarbon oils, e.g. B. gas oil, a slightly longer contact time is required. When light hydrocarbons, z. B. in an amount of 3 g per g of carbon black, will be used on the external appearance formed after powdery product. When gas oil is used, on the other hand, they become spheres educated. These beads of carbon black and gas oil can e.g. B. be mixed with heating oil.
Das folgende Beispiel dient zur näheren Erläuterung der Erfindung.The following example serves to explain the invention in more detail.
Beispiel Ausgangsmaterial war eine Suspension von Ruß, erhalten durch Abschrecken eines heißen Gasgemisches, das aus der unvollständigen Verbrennung einer leichten Benzinfraktion mit Sauerstoff in An- Wesenheit von Dampf gewonnen worden war, mit kaltem Wasser. Diese wäßrige Suspension enthielt 12 g feinverteilten Ruß im Liter (spezifische Oberfläche 300 m=/g). -300 g dieser Suspension wurden mit 3,6 g Benzol in einem Propellermischer gerührt, dessen Propellerwelle mit 800 Umdrehungen pro Minute rotierte.Example The starting material was a suspension of carbon black, obtained by quenching a hot gas mixture, which had been obtained from the incomplete combustion of a light gasoline fraction with oxygen in the presence of steam, with cold water. This aqueous suspension contained 12 g of finely divided carbon black per liter (specific surface area 300 m = / g). -300 g of this suspension were stirred with 3.6 g of benzene in a propeller mixer, the propeller shaft rotating at 800 revolutions per minute.
.`ach Rühren c:ültrend 25 Sekunden begannen sich sichtbare -#gglornerate aus Ruß und Benzol zu bilden. Nach Beendigung des Rührens bildete sich eine klare Wasserschicht. auf der ein Pulver schwamm. das dem äußeren Aussehen nach trocken war und durch Filtrieren abgetrennt wurde. Wenn die 3,6 g Benzol in 5,4 g Wasser, das aus vorhergehenden Rußabscheidungen erhalten worden war, durch Verrühren beider Phasen in einem Ultramischer voremulgiert wurden, dessen -Welle -reit einer Geschwindigkeit von 10000 Umdrehungen pro Minute rotierte, und die gebildete Emulsion dann mit der wäßrigen Rußsuspension in der oben beschriebenen Weise verrührt wurde, bildeten sich bereits innerhalb von 2 Sekunden Agglomerate aus Ruß und Benzol. Nach Beendigung des Rührens bildete sich eine klare Wasserschicht, auf der diese Teilchen schwammen.After stirring c: ültrend 25 seconds, visible - # gglornerate from soot and benzene. When the stirring was stopped, a clear one formed Water layer. on which a powder floated. that is dry from the outside and was separated by filtration. When the 3.6 g of benzene in 5.4 g of water, obtained from previous soot deposits by stirring the two together Phases were pre-emulsified in an ultra-mixer, its -wave-riding a speed rotated at 10,000 revolutions per minute, and the emulsion formed then with the aqueous carbon black suspension was stirred in the manner described above, formed Agglomerates of soot and benzene form within 2 seconds. After completion Upon stirring, a clear layer of water formed on which these particles floated.
Bei Anwendung von Gasöl an Stelle von Benzol, wobei der Versuch sonst
in gleicher Weise durchgeführt wurde, erhielt man unter den in der nachstehenden
Tabelle angegebenen Bedingungen Kiigelchen. die Ruß und Gasöl enthielten. Diese
Kügelchen wiesen noch etwa 5 Gewichtsprozent Wasser auf.
Claims (3)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL355884X | 1956-08-14 | ||
| NL209801A NL89572C (en) | 1956-08-14 | 1956-08-14 | PROCEDURE FOR REMOVING SOOT FROM SUSPENSIONS THEREOF IN WATER |
| NL1042793X | 1956-08-14 | ||
| NL834940X | 1956-08-14 | ||
| NL1181225X | 1956-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1042793B true DE1042793B (en) | 1958-11-06 |
Family
ID=61192602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN13999A Pending DE1042793B (en) | 1956-08-14 | 1957-08-12 | Process for separating soot from soot suspensions in water |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE559996A (en) |
| CH (1) | CH355884A (en) |
| DE (1) | DE1042793B (en) |
| ES (1) | ES237090A1 (en) |
| FR (1) | FR1181225A (en) |
| GB (1) | GB834940A (en) |
| NL (1) | NL89572C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465596A (en) * | 1982-11-10 | 1984-08-14 | Chemische Werke Huls Aktiengesellschaft | Process for removing heavy metal ash from an aqueous soot suspension |
| US5628911A (en) * | 1992-11-11 | 1997-05-13 | Norsk Hydro A.S | Filtration of soot/ash water slurries and improved partial oxidation process for hydrocarbon feedstocks |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3399765A (en) * | 1964-04-06 | 1968-09-03 | Nat Res Council Ottawa | Oil phase separation |
| US4323365A (en) * | 1980-07-24 | 1982-04-06 | Occidental Research Corporation | Dewatering of solid residues of carbonaceous materials |
-
1956
- 1956-08-14 NL NL209801A patent/NL89572C/en active
-
1957
- 1957-08-12 CH CH355884D patent/CH355884A/en unknown
- 1957-08-12 DE DEN13999A patent/DE1042793B/en active Pending
- 1957-08-12 BE BE559996D patent/BE559996A/en unknown
- 1957-08-12 ES ES0237090A patent/ES237090A1/en not_active Expired
- 1957-08-12 GB GB25379/57A patent/GB834940A/en not_active Expired
- 1957-08-14 FR FR1181225D patent/FR1181225A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465596A (en) * | 1982-11-10 | 1984-08-14 | Chemische Werke Huls Aktiengesellschaft | Process for removing heavy metal ash from an aqueous soot suspension |
| US5628911A (en) * | 1992-11-11 | 1997-05-13 | Norsk Hydro A.S | Filtration of soot/ash water slurries and improved partial oxidation process for hydrocarbon feedstocks |
Also Published As
| Publication number | Publication date |
|---|---|
| ES237090A1 (en) | 1958-03-01 |
| BE559996A (en) | 1958-02-12 |
| NL89572C (en) | 1958-11-15 |
| GB834940A (en) | 1960-05-11 |
| FR1181225A (en) | 1959-06-12 |
| CH355884A (en) | 1961-07-31 |
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