FR2612214A2 - Processes for producing cationic bituminous emulsions which are stable and active in an alkaline medium - Google Patents

Processes for producing cationic bituminous emulsions which are stable and active in an alkaline medium Download PDF

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FR2612214A2
FR2612214A2 FR8703286A FR8703286A FR2612214A2 FR 2612214 A2 FR2612214 A2 FR 2612214A2 FR 8703286 A FR8703286 A FR 8703286A FR 8703286 A FR8703286 A FR 8703286A FR 2612214 A2 FR2612214 A2 FR 2612214A2
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emulsion
alkaline
processes
exist
cationic
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FR2612214B2 (en
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Priority claimed from FR8617618A external-priority patent/FR2608185B1/en
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Priority to FR8703286A priority Critical patent/FR2612214B2/en
Priority to EP19870118284 priority patent/EP0275461B1/en
Priority to DE87118284T priority patent/DE3789379D1/en
Priority to AT87118284T priority patent/ATE102977T1/en
Publication of FR2612214A2 publication Critical patent/FR2612214A2/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients
    • E01C19/1077—Supplying or proportioning the ingredients the liquid ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C08L95/005—Aqueous compositions, e.g. emulsions
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1063—Controlling the operations

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Structures (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

During the course of the process for converting an anionic bituminous emulsion into an acidic cationic emulsion, it was found that, in contrast to the generally accepted ideas, this emulsion already revealed cationic properties in an alkaline medium, that is to say before its acidification. This results in new possibilities for bituminous coatings with, in addition, considerable savings in investments and in use.

Description

La présente invention concerne la conception d'un type nouveau d'émulsions bitumineuses, en s'appuyant sur les revendications de la demande de brevet 8617618 et sur la revendication unique de la demande de la première addition 8618242.The present invention relates to the design of a new type of bituminous emulsion, based on the claims of patent application 8617618 and on the single claim of the application of first addition 8618242.

Elle révèle un principe nouveau susceptible d'applications industrielles en application des procédés décrits par les demandes de brevets ci-dessus citées. It reveals a new principle capable of industrial applications in application of the methods described by the patent applications mentioned above.

I1 a été constaté en effet, qu'avant même d'acidifier l'emul- sion anionique stabilisée par les matières protéiques, elle pos séide déjà des propriétés cationiques qu'en principe elle devait acquérir par cette acidification. Et ceci en milieu alcalin, contrairement a l'idée universellement reçue, qu'une émulsion bitumineuse cationique ne peut éxister que dans un milieu acide, c.a d. It has in fact been found that even before acidifying the anionic emulsion stabilized by proteinaceous materials, it already has cationic properties which, in principle, it should acquire by this acidification. And this in an alkaline medium, contrary to the universally accepted idea, that a cationic bituminous emulsion can only exist in an acid medium, ie.

avec un PH plus petit que
Cette qualité d'émulsion - cationique en milieu alcalin doit être attribuée a la spécificité des composants des matières protéiques employées. Parmi le grand choix que la nature nous offre en matières protéiques suffisamment solubles, nous avons sélectionné les plus maniables et les moins chers que sont les farines de tourteaux, résidus de l'expression d'huiles des plantes oléagineuses.Leurs-composants principaux sont les acides aminés:
Lysine, méthionine, méthionine + Cystine, tryptophane, thréonine, glycine + sérine, leucine, isoleucine, valine, histidine, arginine, phénylalanine. I1 est entendu que toute autre combinaison de matières protéiques naturelles ou produites par la chimie organique ainsi que le fait de la présence dans l'émulsion d'amines connues pour leur activité cationique et éventuellement surajoutées, fait partie intégrante des buts recherchés par la demande de brevet.with a PH lower than
This quality of cationic emulsion in an alkaline medium must be attributed to the specificity of the components of the protein materials used. Among the large choice that nature offers us in sufficiently soluble proteinaceous materials, we have selected the most manageable and the cheapest that are meal of meal, residues of the expression of oils from oil plants. Their main components are amino acids:
Lysine, methionine, methionine + Cystine, tryptophan, threonine, glycine + serine, leucine, isoleucine, valine, histidine, arginine, phenylalanine. It is understood that any other combination of natural protein materials or produced by organic chemistry as well as the fact of the presence in the emulsion of amines known for their cationic activity and possibly superadded, is an integral part of the aims sought by the request for patent.

L'intensité de l'effet cationique, c'est-à-dire la précipitation du liant sur des surfaces chargées d'électricité négative, attribuée la compensation des charges positives portées par les sphérules de bitume de l'émulsion, varie avec le taux de matièresprotéiques introduites dans l'emulsion anionique. La vitesse de rupture varie avec le PH. Elle est plus forte en milieu alcalin qu'elle le serait pour la même émulsionacidifiée.  The intensity of the cationic effect, i.e. the precipitation of the binder on surfaces charged with negative electricity, attributed the compensation for the positive charges carried by the bitumen spherules of the emulsion, varies with the rate of protein materials introduced into the anionic emulsion. The breaking speed varies with the PH. It is stronger in an alkaline medium than it would be for the same acidified emulsion.

Elle est maximum au voisinage de PH = 7. L'eau ajoutée ou appor- tée par les granulats a enrober constitue un frein a la rupture et peut être utilisée comme un ralentisseur, ce qui peut devenir important en été par les grandes chaleurs.  It is maximum in the vicinity of PH = 7. The water added or brought in by the aggregates to be coated constitutes a break brake and can be used as a retarder, which can become important in summer in hot weather.

Puisque l'enrobage adhésif par ce nouveau type d'émulsion
est meilleur en milieu de pu plus grand ou égal a 7, on réservera
l'acidification décrite au brevet principal pour des cas spéciaux
dont un éxemple pourrait être l'introduction de sels de chrome
basique,susceptibles de palier une baisse d'activité dans le
temps,des matières protéiques dans les tapis d'enrobés.Since the adhesive coating with this new type of emulsion
is better in the middle of pu greater than or equal to 7, we will reserve
the acidification described in the main patent for special cases
an example of which could be the introduction of chromium salts
basic, likely to compensate for a drop in activity in the
time, protein matter in the asphalt carpets.

Les simplifications et l'économie réalisables avec ce nouveau
type d'émulsion sont importantes, notamment pour une usine d'
émulsions qui prévoit d'emblée de rester dans le domaine alcalin.Simplifications and savings achievable with this new
type of emulsion are important, especially for a factory
emulsions which immediately plan to remain in the alkaline domain.

La suppression des acides corrosifs permet des économies d'in
vestissement considérables sur les matières employées pour les
robinetteries, les conduites, les cuves et les pompes doseuses.Removal of corrosive acids saves in
considerable vestissement on the materials used for the
fittings, pipes, tanks and metering pumps.

Si la fréquence d'avoir a ajouter de l'eau aux granulats destinés
a l'enrobage a l'émulsion n'éxistait pas, on pourrait supprimer
le deuxième moulin colloidal et faire passer, après refroidissement, l'émulsion alcaline enrichie de matières protéiques direc
tement aux malaxeurs de la station d'enrobage. Mais il y à encore
d'autres raisons pour maintenir le deuxième moulin colloidal. En
effet, outre la dilution de l'émulsion a l'eau souvent nécessaire
a l'enrobage, le moulin permet de fabriquer des spécialités dont
un éxemple est l'introduction de latex dans l'émulsion travers
ce moulin colbidal. I1 en serait de même pour l'introduction d'
émulsions de plastiques en vue de modifier les qualités du bitume.If the frequency of having to add water to the intended aggregates
at the coating with the emulsion did not exist, we could remove
the second colloidal mill and pass, after cooling, the alkaline emulsion enriched with direct proteinaceous materials
mixers at the coating station. But there is still
other reasons to maintain the second colloid mill. In
effect, in addition to the dilution of the emulsion with water often necessary
at the coating, the mill makes it possible to manufacture specialties including
an example is the introduction of latex into the emulsion through
this colbidal mill. It would be the same for the introduction of
plastic emulsions to modify the qualities of bitumen.

Un autre grand avantage sur l'émulsion cationique en milieu
acide est donne par le fait que l'émulsion cationique en milieu
alcalin peut être obtenue avec un taux de bitume maximum, soit
jusqu'a 60%, alors que l'émulsion acidifiée, sujette a forte
thixotropie, n'est fluide et travaillable que jusqu'a un taux de
bitume d'environ 45%.Another great advantage over cationic emulsion in medium
acid is given by the fact that the cationic emulsion in medium
alkaline can be obtained with a maximum bitumen content, i.e.
up to 60%, while the acidified emulsion, subject to strong
thixotropy, is fluid and workable only up to a rate of
bitumen of about 45%.

La nouvelle émulsion de bitume cationique, stable en milieu
alcalin, a une capacité d'enrobage universelle et n'a pas besoin
d'être adaptée a la nature minéralogique des granulats et des
fillers employés. Mais comme toute émulsion elle est sensible aux
variations de température qui influent sur la vitesse de rupture.The new cationic bitumen emulsion, stable in the environment
alkaline, has a universal coating capacity and does not need
to be adapted to the mineralogical nature of aggregates and
employed fillers. But like any emulsion it is sensitive to
temperature variations that affect the rate of rupture.

A titre d'éxemples nous donnons quelques moyens pour palier cet
inconvénient. Comme déjà dit, l'eau ajoutée en sus de la dose
prévue est, jusqu'a un certain point, un ralentisseur de rupture.As examples we give some ways to overcome this
disadvantage. As already said, the water added in addition to the dose
provided is, to a certain extent, a failure retarder.

Lorsque ce moyen n'est pas désirable ou même contreindiqué, il suffit d'agir sur le PH en augmentation par des produits alcalins.When this means is not desirable or even contraindicated, it suffices to act on the increasing PH by alkaline products.

Un autre frein de rupture est donné par le formol qui, introduit dans l'émulsion a très faible dose, retarde la rupture. Beaucoup d'autres produits chimiques compatibles avec l'émulsion cationique en milieu alcalin, agissent dans le même sens. Another break brake is given by formalin which, introduced into the emulsion at a very low dose, delays the break. Many other chemicals compatible with the cationic emulsion in an alkaline medium act in the same direction.

Un moyen sur pour accélérer une rupture trop lente consiste a augmenter le taux de matières protéiques dans l'émulsion ou de donner in situ de petites doses de farines protéiques sur l'enrobé tournant dans les malaxeurs. One safe way to accelerate a break that is too slow is to increase the protein content in the emulsion or to give in situ small doses of protein flour on the mix turning in the mixers.

Ces recours correctifs sont exceptionnels lorsque d;entrée on choisit une formule d'émulsion pour une température de travail de 1500 par exemple avec les moyens cités plus haut. Si l'on choisit le formol comme frein de rupture il créerait un milieu stérile qui évite que l'émulsion évolue vers des odeurs de pourriture protéique, sans influence d'ailleurs sur l'efficacité du procédé. Mais sans formol, pour éviter une telle évolution, beaucoup d'autres stérilisants sont applicables, sans nuire au procédé. These corrective remedies are exceptional when entering an emulsion formula is chosen for a working temperature of 1500 for example with the means mentioned above. If formalin is chosen as the breaking brake, it would create a sterile environment which prevents the emulsion from evolving towards odors of protein rot, without, however, influencing the efficiency of the process. But without formalin, to avoid such an evolution, many other sterilants are applicable, without harming the process.

Si une fourchette de température de travail de 5 a 250C s'avère insuffisante pour travailler toute l'année, on prévoit deux formules d'émulsion cationique stable en milieu alcalin, une pour l'avant- et l'arrière-saison et une pour l'été.  If a working temperature range of 5 to 250C proves insufficient to work all year round, two formulations of cationic emulsion stable in alkaline medium are provided, one for the pre- and the late season and one for summer.

Claims (3)

'REVENDICATIONS'' CLAIMS 1) Procédés de fabrication d'émulsions bitumineuses cationiques1) Processes for manufacturing cationic bituminous emulsions d'un type nouveau pouvant exister en milieu alcalin et neutre, of a new type which may exist in an alkaline and neutral medium, selon la revendication 1 de la demande de brevet 86 17618, according to claim 1 of patent application 86 17618, caractérisés en ce qu'une émulsion anionique conventionnelle est characterized in that a conventional anionic emulsion is transformée en une émulsion cationique pouvant exister en milieu transformed into a cationic emulsion which can exist in medium alcalin un PH supérieur a 7, en introduisant dans cette émulsion alkaline a PH greater than 7, by introducing into this emulsion anionique, sans sortir du milieu alcalin, des protéines sous anionic, without leaving the alkaline medium, proteins under forme d'acides aminés, notamment celles contenues dans les form of amino acids, especially those contained in farines de tourteaux, résidus solides de la fabrication des cake meal, solid residues from the manufacture of huiles végetales et formées de mélanges taux variables de:: vegetable oils and mixtures of variable rates of: Lysine, méthionine + cystine, tryptophane, thréonine, glycine + Lysine, methionine + cystine, tryptophan, threonine, glycine + cérine, leucine, isoleucine, valine, histidine, arginine, phényl cerine, leucine, isoleucine, valine, histidine, arginine, phenyl analine et les autres déchets de ces plantes a huile. analine and other wastes from these oil plants. 2) Procédés de fabrication d'émulsions bitumineuses cationigues 2) Manufacturing processes for cationic bituminous emulsions d'un type nouveau pouvant exister en milieu alcalin et neutre, of a new type which may exist in an alkaline and neutral medium, selon la revendication 1, caractérisés en ce que par l'action according to claim 1, characterized in that by the action de produits alcalin sur le PH, on agit sur ce PH en hausse, ce of alkaline products on the PH, we act on this rising PH, this qui augmente la stabilité de l'émulsion, which increases the stability of the emulsion, 3) Procédés de fabrication d'émulsions bitumineuses cationiques3) Processes for manufacturing cationic bituminous emulsions d'un type nouveau pouvant exister en milieu alcalin et neutre, of a new type which may exist in an alkaline and neutral medium, selon les revendications précédentes, caractérisés en ce que par according to the preceding claims, characterized in that by un taux croissant de matières protéiques on accélère la rupture an increasing rate of protein matter we accelerate the rupture de l'émulsion comme est accélérée la prise en masse par l'ajout of the emulsion as the solidification is accelerated by the addition des memes farines de matières protéiques sur les enrobés en same flours of proteinaceous materials on asphalt mixes fabrication.  manufacturing.
FR8703286A 1986-12-15 1987-03-09 PROCESSES FOR THE MANUFACTURE OF CATIONIC, STABLE AND ACTIVATED BITUMINOUS EMULSIONS IN ALKALINE MEDIA Expired - Lifetime FR2612214B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8703286A FR2612214B2 (en) 1986-12-15 1987-03-09 PROCESSES FOR THE MANUFACTURE OF CATIONIC, STABLE AND ACTIVATED BITUMINOUS EMULSIONS IN ALKALINE MEDIA
EP19870118284 EP0275461B1 (en) 1986-12-15 1987-12-10 Process for the preparation of an incorporable bituminous cold-miscible material based on a bitumen emulsion, and a mixture of minerals with graded grain sizes
DE87118284T DE3789379D1 (en) 1986-12-15 1987-12-10 Process for the preparation of a bituminous, ready-to-use cold mix based on a bitumen emulsion and a mixture of minerals.
AT87118284T ATE102977T1 (en) 1986-12-15 1987-12-10 PROCESS FOR THE PREPARATION OF A BITUMINOUS PAYABLE COLD MIX BASED ON A BITUMEN EMULSION AND A MINERAL MIXTURE OF GRADUATED GRAINING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8617618A FR2608185B1 (en) 1986-12-15 1986-12-15 METHODS AND DEVICES FOR COLD BITUMINOUS COATINGS BY INTEGRATING A BITUMEN EMULSION FACTORY INTO THE CIRCUITS OF A COATING STATION
FR8703286A FR2612214B2 (en) 1986-12-15 1987-03-09 PROCESSES FOR THE MANUFACTURE OF CATIONIC, STABLE AND ACTIVATED BITUMINOUS EMULSIONS IN ALKALINE MEDIA

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FR2612214A2 true FR2612214A2 (en) 1988-09-16
FR2612214B2 FR2612214B2 (en) 1990-02-23

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FR8703286A Expired - Lifetime FR2612214B2 (en) 1986-12-15 1987-03-09 PROCESSES FOR THE MANUFACTURE OF CATIONIC, STABLE AND ACTIVATED BITUMINOUS EMULSIONS IN ALKALINE MEDIA

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639375A1 (en) * 1988-11-18 1990-05-25 Muntzer Emile REGENERATION AND COLD COATING OF BITUMINOUS RECYCLING MATERIALS
EP0402292A2 (en) * 1989-06-09 1990-12-12 Emile Jacques Muntzer Method of bituminous coating with cationic emulsions originating from anionic emulsions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819371A (en) * 1956-08-21 1959-09-02 Dussek Bitumen & Taroleum Ltd Bitumen emulsions
CH511053A (en) * 1966-12-02 1971-08-15 Wibau Gmbh Process for the production of mixed material from powdery to granular solids and bituminous binders and application of the process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819371A (en) * 1956-08-21 1959-09-02 Dussek Bitumen & Taroleum Ltd Bitumen emulsions
CH511053A (en) * 1966-12-02 1971-08-15 Wibau Gmbh Process for the production of mixed material from powdery to granular solids and bituminous binders and application of the process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639375A1 (en) * 1988-11-18 1990-05-25 Muntzer Emile REGENERATION AND COLD COATING OF BITUMINOUS RECYCLING MATERIALS
EP0402292A2 (en) * 1989-06-09 1990-12-12 Emile Jacques Muntzer Method of bituminous coating with cationic emulsions originating from anionic emulsions
EP0402292A3 (en) * 1989-06-09 1992-03-25 Emile Jacques Muntzer Method of bituminous coating with cationic emulsions originating from anionic emulsions

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