EP1885672A2 - Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle - Google Patents

Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle

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Publication number
EP1885672A2
EP1885672A2 EP06755268A EP06755268A EP1885672A2 EP 1885672 A2 EP1885672 A2 EP 1885672A2 EP 06755268 A EP06755268 A EP 06755268A EP 06755268 A EP06755268 A EP 06755268A EP 1885672 A2 EP1885672 A2 EP 1885672A2
Authority
EP
European Patent Office
Prior art keywords
aliphatic hydrocarbon
polyhydroxylated aliphatic
equal
chlorohydrin
process according
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.)
Withdrawn
Application number
EP06755268A
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German (de)
English (en)
French (fr)
Inventor
Philippe Krafft
Patrick Gilbeau
Dominique Balthasart
Valentine Smets
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
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Publication date
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Priority claimed from FR0505120A external-priority patent/FR2885903B1/fr
Priority claimed from EP05104321A external-priority patent/EP1762556A1/en
Application filed by Solvay SA filed Critical Solvay SA
Priority to EP06755268A priority Critical patent/EP1885672A2/fr
Publication of EP1885672A2 publication Critical patent/EP1885672A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/62—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/82—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/34—Halogenated alcohols
    • C07C31/36—Halogenated alcohols the halogen not being fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/34—Halogenated alcohols
    • C07C31/42—Polyhydroxylic acyclic alcohols
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/04—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen
    • C07D301/06—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the liquid phase
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D301/00—Preparation of oxiranes
    • C07D301/02—Synthesis of the oxirane ring
    • C07D301/24—Synthesis of the oxirane ring by splitting off HAL—Y from compounds containing the radical HAL—C—C—OY
    • C07D301/26—Y being hydrogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02—Compounds containing oxirane rings
    • C07D303/08—Compounds containing oxirane rings with hydrocarbon radicals, substituted by halogen atoms, nitro radicals or nitroso radicals

Definitions

  • the present invention relates to a process for producing a chlorohydrin, more specifically to a process for producing a chlorohydrin by chlorinating a polyhydroxylated aliphatic hydrocarbon.
  • Chlorohydrins are reaction intermediates in the manufacture of epoxides.
  • Dichloropropanol for example, is a reaction intermediate in the manufacture of epichlorohydrin and epoxy resins (Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, 1992, Vol 2, page 156, John Wiley & Sons, Inc.) .
  • dichloropropanol can be obtained in particular by hypochlorination of allyl chloride, by chlorination of allyl alcohol and by hydrochlorination of glycerol.
  • the latter process has the advantage that dichloropropanol can be obtained from fossil raw materials or renewable raw materials, and it is known that petrochemical natural resources, from which fossil fuels are derived, for example petroleum, natural gas or coal, available on the earth are limited.
  • the application WO 2005/054167 of SOLVAY SA describes a process for the manufacture of dichloropropanol by reaction between glycerol and hydrogen chloride in the presence of a catalyst such as adipic acid as catalyst.
  • a catalyst such as adipic acid as catalyst.
  • the dichloropropanol is separated from the other products of the reaction and these are recycled to the glycerol chlorination reactor.
  • a fraction of these other reaction products can be withdrawn via a purge and subjected to various treatments before disposal.
  • Landfill is not an environmentally acceptable solution.
  • the additional cost of treatment prior to landfill can be prohibitive for the economy of the process.
  • the object of the invention is to provide a process for preparing a chlorohydrin which does not have these disadvantages.
  • the invention therefore relates to a process for producing a chlorohydrin comprising the steps of: (a) reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them, of which the content of alkali and / or alkaline earth metals is less than or equal to 5 g / kg, an oxidizing agent and an organic acid so as to obtain a mixture containing at least chlorohydrin and the other compounds (b) is subjected to at least one part of the mixture obtained in step (a) at one or more treatments in steps subsequent to step (a) (c) at least one of the steps subsequent to step (a) consists of a oxidation at a temperature greater than or equal to 800 0 C).
  • step (a) of the process a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture thereof, having an alkali and / or alkali metal content. -terreux less than or equal to 5 g / kg, one could subject a portion of the mixture obtained in step (a) to oxidation at a temperature greater than or equal to 800 0 C, and obtain the following advantages: 1) recovering from the chlorinating agent,
  • polyhydroxylated aliphatic hydrocarbon refers to a hydrocarbon that contains at least two hydroxyl groups attached to two different saturated carbon atoms.
  • the polyhydroxylated aliphatic hydrocarbon may contain, but is not limited to, from 2 to 60 carbon atoms.
  • Each of the carbons of a polyhydroxylated aliphatic hydrocarbon bearing the functional hydroxyl (OH) group can not have more than one OH group, and must be of sp3 hybridization.
  • the carbon atom bearing the OH group may be primary, secondary or tertiary.
  • the polyhydroxylated aliphatic hydrocarbon used in the present invention must contain at least two sp3 hybridization carbon atoms carrying an OH group.
  • the polyhydroxylated aliphatic hydrocarbon includes any hydrocarbon containing a vicinal diol (1,2-diol) or a vicinal triol (1,2,3-triol) including higher orders of these repeating units, vicinal or contiguous .
  • the definition of the polyhydroxylated aliphatic hydrocarbon also includes, for example, one or more 1,3-, 1,4-, 1,5- and 1,6-diol functional groups.
  • the polyhydroxylated aliphatic hydrocarbon may also be a polymer such as polyvinyl alcohol. Geminated diols, for example, are excluded from this class of polyhydroxylated aliphatic hydrocarbons.
  • the polyhydroxylated aliphatic hydrocarbons may contain aromatic entities or hetero atoms including, for example, hetero atoms of the halogen, sulfur, phosphorus, nitrogen, oxygen, silicon and boron type, and mixtures thereof.
  • Polyhydroxylated aliphatic hydrocarbons for use in the present invention include, for example, 1,2-ethanediol (ethylene glycol), 1,2-propanediol (propylene glycol), 1,3-propanediol, 1-chloro-2, 3-propanediol (chloropropanediol), 2-chloro-1,3-propanediol (chloropropanediol), 1,4-butanediol, 1,5-pentanediol, cyclohexanediols, 1,2-butanediol, 1,2-propanediol, cyclohexanedimethanol, 1,2,3-propanetriol (also known as "glycerol” or "glycerin”), and mixtures thereof.
  • 1,2-ethanediol ethylene glycol
  • 1,2-propanediol propylene glycol
  • the polyhydroxylated aliphatic hydrocarbon used in the present invention includes, for example, 1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, chloropropanediol and 1,2,3-propanetriol, and mixtures of at least two of them. More preferably, the polyhydroxylated aliphatic hydrocarbon used in the present invention includes, for example, 1,2-ethanediol, 1,2-propanediol, chloropropanediol and 1,2,3-propanetriol, and mixtures thereof. least two of them. 1,2,3-propanetriol or glycerol is the most preferred.
  • the polyhydroxylated aliphatic hydrocarbon esters may be present in the polyhydroxylated aliphatic hydrocarbon and / or be produced in the process for the manufacture of chlorohydrin and / or may be manufactured prior to the process for producing the chlorohydrin.
  • esters of the polyhydroxylated aliphatic hydrocarbon include the monoacetate of - AT -
  • chlorohydrin is used here to describe a compound containing at least one hydroxyl group and at least one chlorine atom attached to different saturated carbon atoms.
  • a chlorohydrin which contains at least two hydroxyl groups is also a polyhydroxylated aliphatic hydrocarbon.
  • the starting material and the product of the reaction can each be chlorohydrins.
  • the "produced" chlorohydrin is more chlorinated than the starting chlorohydrin, that is to say that it has more chlorine atoms and fewer hydroxyl groups than the starting chlorohydrin.
  • chlorohydrins are chloroethanol, chloropropanol, chloropropanediol, dichloropropanol and mixtures of at least two of them.
  • Dichloropropanol is particularly preferred.
  • More particularly preferred chlorohydrins are 2-chloroethanol, 1-chloropropan-2-ol, 2-chloropropane-1-ol, 1-chloropropane-2,3-diol, 2-chloropropane-1,3-diol. 1,3-dichloropropan-2-ol, 2,3-dichloropropan-1-ol and mixtures of at least two of them.
  • the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, in the process according to the invention can be obtained from fossil raw materials or from renewable raw materials, from preferably from renewable raw materials.
  • Fossil raw materials are understood to mean materials from the processing of petrochemical natural resources, for example, petroleum, natural gas, and coal. Of these materials, organic compounds having 2 and 3 carbon atoms are preferred.
  • the polyhydroxylated aliphatic hydrocarbon is glycerol, allyl chloride, allyl alcohol and "synthetic" glycerol are particularly preferred.
  • synthetic glycerol is meant a glycerol generally obtained from petrochemical resources.
  • the polyhydroxylated aliphatic hydrocarbon is ethylene glycol
  • ethylene and “synthetic" ethylene glycol are particularly preferred.
  • polyhydroxylated aliphatic hydrocarbon is propylene glycol
  • propylene and synthetic propylene glycol are particularly preferred.
  • synthetic propylene glycol designate a propylene glycol generally obtained from petrochemical resources.
  • Renewable raw materials are defined as materials derived from the treatment of renewable natural resources.
  • “natural” ethylene glycol, “natural” propylene glycol and “natural” glycerol are preferred.
  • “natural” ethylene glycol, propylene glycol and glycerol are obtained by sugar conversion via thermochemical processes, which sugars can be obtained from biomass, as described in Industrial Bioproducts: Today and Tomorrow, Energetics. , Incorporated for the US Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of the Biomass Program, July 2003, pages 49, 52 to 56 ".
  • One of these processes is, for example, the catalytic hydrogenolysis of sorbitol obtained by thermochemical conversion of glucose.
  • Another method is for example the catalytic hydrogenolysis of xylitol obtained by hydrogenation of xylose.
  • the xylose can for example be obtained by hydrolysis of the hemicellulose contained in the corn fibers.
  • natural glycerol or “glycerol obtained from renewable raw materials” is meant in particular glycerol obtained during the manufacture of biodiesel or glycerol obtained during transformations of fats or oils of plant or animal origin in general such as saponification, trans-esterification or hydrolysis reactions.
  • oils used it is also possible to indicate partially modified oils, for example by polymerization or oligomerization, for example the "standolies" of linseed oil, sunflower oil and blown vegetable oils.
  • partially modified oils for example by polymerization or oligomerization, for example the "standolies" of linseed oil, sunflower oil and blown vegetable oils.
  • a particularly suitable glycerol can be obtained during the processing of animal fats.
  • Another particularly suitable glycerol can be obtained during the manufacture of biodiesel.
  • a third particularly suitable glycerol can be obtained during the transformation of fats or oils, animal or vegetable by trans-esterification in the presence of a heterogeneous catalyst, as described in documents FR 2752242, FR 2869612 and FR More specifically, the heterogeneous catalyst is chosen from mixed oxides of aluminum and zinc, mixed oxides of zinc and titanium, mixed oxides of zinc, titanium and aluminum, and mixed oxides of bismuth and of aluminum, and the heterogeneous catalyst is implemented in the form of a fixed bed. The latter process may be a biodiesel manufacturing process.
  • the latter process has at least two advantages over processes based on saponification, transesterification or hydrolysis reactions that do not involve a heterogeneous catalyst.
  • the first advantage is that the contamination of glycerol with alkaline and / or alkaline earth elements is reduced.
  • the latter come, for example, from homogeneous basic reagents used in the trans-esterification or saponification reactions (alkaline bases) or from neutralization operations, with alkaline bases, of acidic homogeneous catalysts used during the trans-esterification reactions or acid hydrolysis.
  • the use of heterogeneous catalysts as described above greatly reduces the contamination of glycerol by the alkaline and alkaline earth elements, as well as by other metallic elements.
  • the second advantage is that glycerol contamination by non-glycerine organic materials is reduced.
  • non-glycerine materials include, for example, carboxylic acids, carboxylic acid salts, fatty acid esters such as mono-, di- and triglycerides and fatty acid esters with the alcohols used in trans-esterification.
  • the polyhydroxylated aliphatic hydrocarbon may be as described in the patent application entitled "Process for preparing chlorohydrin by conversion of polyhydroxylated aliphatic hydrocarbons" deposited in the name of SOLVAY SA the same day as the present application, the contents of which are hereby incorporated by reference.
  • a process for producing a chlorohydrin in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of which the total content of metals expressed in the form of elements is greater than or equal to 0,1 ⁇ g / kg and less than or equal to 1,000 mg / kg, with a chlorinating agent.
  • glycerol obtained from renewable raw materials.
  • the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them may be a crude product or a purified product, such as as specifically disclosed in SOLVAY SA application WO 2005/054167, page 2, line 8, to page 4, line 2.
  • the content of alkali metals and of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is less than or equal to 5 g / kg, often less than or equal to 1 g / kg, more particularly less than or equal to 0.5 g / kg and in some cases less than or equal to 0.01 g / kg.
  • the content of alkaline and / or alkaline earth metals of glycerol is generally greater than or equal to 0.1 ⁇ g / kg.
  • the alkali metals are generally lithium, sodium, potassium and cesium, often sodium and potassium, and frequently sodium.
  • the lithium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the sodium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the potassium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the rubidium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the cesium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the alkaline-earth elements are generally magnesium, calcium, strontium and barium, often magnesium and calcium and frequently calcium.
  • the magnesium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the calcium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the strontium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the barium content of the polyhydroxylated aliphatic hydrocarbon, of the polyhydroxylated aliphatic hydrocarbon ester, or of the mixture of them is generally less than or equal to at 1 g / kg, often less than or equal to 0.1 g / kg and more particularly less than or equal to 2 mg / kg. This content is generally greater than or equal to 0.1 ⁇ g / kg.
  • the alkali metals and / or alkaline earth metals are generally present in the form of salts, frequently in the form of chlorides, sulphates and mixtures thereof. Sodium chloride is most often encountered.
  • the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them may contain elements other than the alkali metals and alkaline earth metal. These include sulfur, iron, nickel, chromium, copper, lead, arsenic, cobalt, titanium, vanadium, tin, tellurium, cadmium, antimony, mercury, selenium, zinc, aluminum, phosphorus and nitrogen. These elements can be found in the second portion obtained in step (b).
  • the sulfur content is generally less than or equal to 500 mg / kg and the nitrogen content is generally less than or equal to 500 mg / kg.
  • the content of metallic elements other than the alkaline and alkaline-earth metals is for each of these elements generally less than or equal to 1 mg / kg, preferably less than or equal to 0.5 mg / kg.
  • the chlorinating agent may be as described in the application WO 2005/054167 of SOLVAY SA, of page 4, line 25, on page 6, line 2 .
  • the chlorinating agent may be hydrogen chloride may be as described in SOLVAY SA application WO 2005/054167, page 4, line 30, on page 6, line 2.
  • a chlorinating agent which may be aqueous hydrochloric acid or preferably anhydrous hydrogen chloride.
  • the hydrogen chloride may be derived from a process for the pyrolysis of chlorinated organic compounds such as, for example, vinyl chloride production, a process for the manufacture of 4,4-methylenediphenyl diisocyanate (MDI) or toluene diisocyanate (TDI), metal stripping processes or reaction between an inorganic acid such as sulfuric or phosphoric acid and a metal chloride such as sodium chloride, potassium chloride or calcium chloride.
  • MDI 4,4-methylenediphenyl diisocyanate
  • TDI toluene diisocyanate
  • the chlorinating agent is gaseous hydrogen chloride or an aqueous solution of hydrogen chloride or a combination of both.
  • the hydrogen chloride may be an aqueous solution of hydrogen chloride or preferably anhydrous hydrogen chloride, resulting from a chlorine-producing plant. allyl and / or manufacture of chloromethanes and / or chlorinolysis and / or high temperature oxidation of chlorinated compounds as described in the application entitled "Process for producing a chlorohydrin by reaction between a polyhydroxylated aliphatic hydrocarbon and a chlorinating agent "filed on behalf of SOLVAY SA on the same day as the present application, the contents of which are hereby incorporated by reference.
  • a process for producing a chlorohydrin from a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them, and a chlorinating agent the latter containing at least one of the following compounds: nitrogen, oxygen, hydrogen, chlorine, an organic hydrocarbon compound, a halogenated organic compound, an oxygenated organic compound and a metal.
  • organic hydrocarbon compound which is selected from aromatic hydrocarbons, saturated or unsaturated aliphatic and mixtures thereof.
  • an unsaturated aliphatic hydrocarbon which is selected from acetylene, ethylene, propylene, butene, propadiene, methylacetylene, and mixtures thereof, of a saturated aliphatic hydrocarbon which is selected from methane , ethane, propane, butane, and mixtures thereof, and an aromatic hydrocarbon which is benzene.
  • halogenated organic compound which is a chlorinated organic compound chosen from chloromethanes, chloroethanes, chloropropanes, chlorobutanes, vinyl chloride, vinylidene chloride, monochloropropenes, perchlorethylene, trichlorethylene, chlorobutadiene, chlorobenzenes and mixtures thereof.
  • a halogenated organic compound which is a fluorinated organic compound selected from fluoromethanes, fluoroethanes, vinyl fluoride, vinylidene fluoride, and mixtures thereof.
  • an oxygenated organic compound which is chosen from alcohols, chloroalcohols, chloroethers and their mixtures
  • the chlorinating agent is derived at least partially from a process for producing allyl chloride and / or a process for producing chloromethanes and / or a process chlorinolysis process and / or a process for the oxidation of chlorinated compounds at a temperature greater than or equal to 800 ° C.
  • the chloride of hydrogen is an aqueous solution of hydrogen chloride and does not include gaseous hydrogen chloride.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent can be carried out in a reactor as described in SOLVAY SA application WO 2005/054167, on page 6, lines 3 to 23.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent can be carried out in equipment, made of or covered with chlorine-resistant materials, as described in the application entitled “Process for the manufacture of a chlorohydrin in corrosion-resistant equipment” filed on behalf of SOLVAY SA the same the present application, the contents of which are hereby incorporated by reference.
  • a process for the manufacture of a chlorohydrin comprising a step in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to a reaction with a chlorinating agent containing hydrogen chloride and at least one other step performed in equipment, made of or coated with chlorinating agent resistant materials, under the conditions of carrying out this step.
  • metallic materials such as enamelled steel, gold and tantalum and non-metallic materials such as high density polyethylene, polypropylene, polyvinylidene fluoride, polytetrafluoroethylene , perfluoroalkoxyalkanes and poly (perfluoropropylvinylether), polysulfones and polysulfides, graphite and impregnated graphite.
  • non-metallic materials such as high density polyethylene, polypropylene, polyvinylidene fluoride, polytetrafluoroethylene , perfluoroalkoxyalkanes and poly (perfluoropropylvinylether), polysulfones and polysulfides, graphite and impregnated graphite.
  • the reaction between a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture of them, and the chlorinating agent can be carried out in a reaction medium, as described in the application entitled "Continuous process for the manufacture of chlorohydrins" filed in the name of SOLVAY SA on the same day as the present application, the content of which is hereby incorporated by reference. Particular mention is made of a continuous process for the production of chlorohydrin in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture of them is reacted with a chlorinating agent and an organic acid.
  • a liquid reaction medium whose composition in the stationary state comprises polyhydroxylated aliphatic hydrocarbon and esters of the polyhydroxylated aliphatic hydrocarbon whose sum of the contents expressed in moles of polyhydroxylated aliphatic hydrocarbon is greater than 1, 1 mol% and less than or equal to 30 mol%, the percentage being related to the organic part of the liquid reaction medium.
  • the organic part of the liquid reaction medium consists of all the organic compounds of the liquid reaction medium, that is to say compounds whose molecule contains at least 1 carbon atom.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent can be carried out in the presence of a catalyst as described in SOLVAY SA application WO 2005/054167, page 6, line 28, on page 8, line 5.
  • a catalyst based on a carboxylic acid or on a carboxylic acid derivative having an atmospheric boiling point greater than or equal to 200 ° C. in particular adipic acid and derivatives of adipic acid.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent may be carried out at a catalyst concentration, a temperature, a pressure and for residence times as described in SOLVAY SA application WO 2005/054167, page 8, line 6 to page 10, line 10. Mention is particularly made of a temperature of at least 20 ° C. and at most 160 ° C., a pressure of at least 0.3 bar and a maximum of 100 bar, and a residence time. at least 1 hour and not more than 50 hours.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent may be carried out in the presence of a solvent as described in the application WO 2005/054167 of SOLVAY SA, on page 11, lines 12 to 36.
  • an organic solvent such as a chlorinated organic solvent, an alcohol, a ketone, an ester or an ether, a non-aqueous solvent miscible with the polyhydroxylated aliphatic hydrocarbon such as chloroethanol, chloropropanol and chloropropanediol. , dichloropropanol, dioxane, phenol, cresol, and mixtures of chloropropanediol and dichloropropanol, or heavy products of the reaction such as oligomers of the at least partially chlorinated and / or esterified polyhydroxylated aliphatic hydrocarbon.
  • a non-aqueous solvent miscible with the polyhydroxylated aliphatic hydrocarbon such as chloroethanol, chloropropanol and chloropropanediol.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon and the chlorinating agent can be carried out in the presence of a liquid phase comprising heavy compounds other than the polyaliphatic hydrocarbon.
  • hydroxylated as described in the application entitled "Process for producing a chlorohydrin in a liquid phase" filed in the name of SOLVAY SA on the same day as the present application, the contents of which are hereby incorporated by reference.
  • the reaction between the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester, or the mixture of them, and the chlorinating agent is preferentially carried out in a liquid reaction medium.
  • the liquid reaction medium may be mono- or multiphasic.
  • the liquid reaction medium consists of all the dissolved or dispersed solid compounds, dissolved or dispersed liquids and gaseous dissolved or dispersed, at the reaction temperature.
  • the reaction medium comprises the reactants, the catalyst, the solvent, the impurities present in the reagents, in the solvent and in the catalyst, the reaction intermediates, the products and the by-products of the reaction.
  • reagents is meant the polyhydroxylated aliphatic hydrocarbon, the polyhydroxylated aliphatic hydrocarbon ester and the chlorinating agent.
  • impurities present in the polyhydroxylated aliphatic hydrocarbon mention may be made of carboxylic acids, carboxylic acid salts, fatty acid esters with polyhydroxylated aliphatic hydrocarbon, esters of fatty acids with the alcohols used. during the trans-esterification, inorganic salts such as chlorides and sulphates alkali or alkaline earth.
  • the polyhydroxylated aliphatic hydrocarbon is glycerol
  • reaction intermediates mention may be made of the monochlorohydrins of the polyhydroxylated aliphatic hydrocarbon and their esters and / or polyesters, the esters and / or polyesters of the polyhydroxylated aliphatic hydrocarbon and the esters of the polychlorohydrins.
  • chlorohydrin is dichloropropanol
  • the polyhydroxylated aliphatic hydrocarbon ester may therefore be, depending on the case, a reagent, an impurity of the polyhydroxylated aliphatic hydrocarbon or a reaction intermediate.
  • products of the reaction is meant chlorohydrin and water.
  • the water may be the water formed in the chlorination reaction and / or the water introduced into the process, for example via the polyhydroxylated aliphatic hydrocarbon and / or the chlorinating agent, as described in the application WO 2005/054167 of SOLVAY SA, on page 2, lines 22 to 28, on page 3, lines 20 to 25, on page 5, lines 7 to 31 and on page 12, lines 14 to 19.
  • by-products include, for example, partially chlorinated and / or esterified polyhydroxylated aliphatic hydrocarbon oligomers.
  • polyhydroxylated aliphatic hydrocarbon is glycerol
  • the polyhydroxylated aliphatic hydrocarbon is glycerol
  • reaction intermediates and by-products may be formed in the various process steps such as, for example, during the chlorohydrin manufacturing step and during the chlorohydrin separation steps.
  • the liquid reaction medium may thus contain the polyhydroxylated aliphatic hydrocarbon, the dissolved or dispersed chlorination agent in the form of bubbles, the catalyst, the solvent, the impurities present in the reactants, the solvent and the catalyst, such as dissolved salts. or solids for example, the solvent, the catalyst, the reaction intermediates, the products and the by-products of the reaction.
  • the steps (a), (b) and (c) of the process according to the invention can be carried out in batch mode or in continuous mode. It is preferred to carry out all the steps in continuous mode.
  • the organic acid may be a product derived from the process for producing the polyhydroxylated aliphatic hydrocarbon or a product not originating from this process. In the latter case, it may be an organic acid used to catalyze the reaction between the polyhydroxylated aliphatic hydrocarbon and the chlorinating agent and / or an acid generated in the process for producing chlorohydrin.
  • acids derived from aldehydes present in the polyhydroxylated aliphatic hydrocarbon or formed during the manufacture of the chlorohydrin are considered.
  • the organic acid may also be a mixture of organic acid from the process for producing the polyhydroxylated aliphatic hydrocarbon and an organic acid not originating from the process for producing the polyhydroxylated aliphatic hydrocarbon.
  • the esters of the polyhydroxylated aliphatic hydrocarbon can come from the reaction between the polyhydroxylated aliphatic hydrocarbon and the organic acid, before, during or in the steps which follow the reaction with the chlorinating agent. .
  • the separation of the chlorohydrin and the other compounds from the reaction medium can be carried out according to the modes as described in the application WO 2005/054167 of SOLVAY SA, of page 12, line 1, to the page 16, line 35 and on page 18, lines 6 to 13.
  • These other compounds are those mentioned above and comprise the reagents not consumed, the impurities present in the reagents, the catalyst, the solvent, the reaction intermediates, water and by-products of the reaction.
  • a separation mode comprising at least one separation operation for removing salt from the liquid phase is particularly preferred.
  • a process for producing a chlorohydrin in which (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to a reaction with a chlorinating agent in a reaction medium, (b) a fraction of the reaction medium containing at least water and chlorohydrin is withdrawn continuously or periodically, (c) at least part of the fraction obtained in step (b) ) is introduced into a distillation step and (d) the reflux ratio of the distillation step is controlled by supplying water to said distillation step.
  • a process for producing a chlorohydrin in which (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to a reaction with hydrogen chloride in a reaction medium, (b) a fraction of the reaction medium containing at least water and the chlorohydrin is withdrawn continuously or periodically, (c) at least part of the fraction obtained in step ( b) is introduced into a distillation step, wherein the ratio between the hydrogen chloride concentration and the water concentration in the fraction introduced into the distillation step is smaller than the ratio of hydrogen chloride concentrations / water in the azeotropic hydrogen chloride / water binary composition at the distillation temperature and pressure.
  • the separation of the chlorohydrin and the other compounds from the reaction medium of chlorination of the polyhydroxylated aliphatic hydrocarbon can be carried out according to the modes as described in the application entitled “Process of manufacture of a chlorohydrin "deposited in the name of SOLVAY SA, the same day as the present application, and the contents of which are hereby incorporated by reference.
  • a process for producing a chlorohydrin comprising the following steps: (a) reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture thereof, with a chlorination and an organic acid to obtain a mixture containing chlorohydrin and chlorohydrin esters, (b) subjecting at least a portion of the mixture obtained in step (a) to one or more treatments in subsequent steps in step (a) and (c), polyhydroxylated aliphatic hydrocarbon is added to at least one of the steps subsequent to step (a), so that it reacts at a temperature greater than or equal to 20 ° C., with the chlorohydrin esters so as to at least partially form esters of the polyhydroxylated aliphatic hydrocarbon.
  • a process comprising the following steps: (a) reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them, with a chlorination agent such as to obtain at least one medium containing chlorohydrin, water and chlorinating agent, (b) removing at least a fraction of the medium formed in step (a) and (c) subjecting the fraction taken in step (b) to a distillation and / or stripping operation in which polyhydroxylated aliphatic hydrocarbon is added so as to separate from the fraction taken in step (b) a mixture containing water and chlorohydrin having a reduced content of chlorinating agent compared to that of the fraction taken in step (b).
  • the separation of the chlorohydrin and the other compounds from the reaction medium of chlorination of the polyhydroxylated aliphatic hydrocarbon can be carried out according to the modes as described in the application entitled "Process of conversion of polyhydroxylated aliphatic hydrocarbons to chlorhydrins "deposited in the name of SOLVAY SA on the same day as the present application and the contents of which are hereby incorporated by reference.
  • a process for preparing a chlorohydrin comprising the following steps: (a) reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them, with an agent chlorination process so as to obtain a mixture containing chlorohydrin, chlorohydrin esters and water, (b) subjecting at least a fraction of the mixture obtained in step (a) to a distillation treatment and / or stripping so as to obtain a concentrated portion of water, chlorohydrin and chlorohydrin esters, and (c) subjecting at least a fraction of the portion obtained in step (b) to a separation operation in the presence of at least one additive so as to obtain a concentrated portion of chlorohydrin and chlorohydrin esters and which contains less than 40% by weight of water.
  • the separation operation is more particularly a settling.
  • the chlorohydrin when the chlorohydrin is chloropropanol, it is generally used in the form of a mixture of compounds comprising the isomers of 1-chloropropan-2-ol and 2-chloropropane-1. ol.
  • This mixture generally contains more than 1% by weight of the two isomers, preferably more than 5% by weight and more particularly more than 50%.
  • the mixture usually contains less than 99.9% by weight of the two isomers, preferably less than 95% by weight and most preferably less than 90% by weight.
  • the other constituents of the mixture may be compounds derived from chloropropanol production processes, such as residual reagents, reaction by-products, solvents and in particular water.
  • the weight ratio between the isomers 1-chloropropan-2-ol and 2-chloropropane-1-ol is usually greater than or equal to 0.01, preferably greater than or equal to 0.4. This ratio is usually less than or equal to 99 and preferably less than or equal to 25.
  • the chlorohydrin when the chlorohydrin is chloroethanol, it is generally used in the form of a mixture of compounds comprising the isomer 1-chloroethane-2-ol. This mixture generally contains more than 1% by weight of the isomer, preferably more than 5% by weight and especially more than 50%.
  • the mixture usually contains less than 99.9% by weight of the isomer, preferably less than 95% by weight and most preferably less than 90% by weight.
  • the other constituents of the mixture may be compounds derived from chloroethanol production processes, such as residual reagents, reaction by-products, solvents and in particular water.
  • the chlorohydrin when the chlorohydrin is chloropropanediol, it is generally used in the form of a mixture of compounds comprising the isomers of 1-chloropropane-2,3-diol and 2-chloropropane. -l, 3-diol.
  • This mixture generally contains more than 1% by weight of the two isomers, preferably more than 5% by weight and more particularly more than 50%.
  • the mixture usually contains less than 99.9% by weight of the two isomers, preferably less than 95% by weight and most preferably less than 90% by weight.
  • the other constituents of the mixture may be compounds derived from chloropropanediol production processes, such as residual reagents, reaction by-products, solvents and in particular water.
  • the weight ratio between the isomers 1-chloropropane-2,3-diol and 2-chloropropane-1,3-diol is usually greater than or equal to 0.01, preferably greater than or equal to 0.4. This ratio is usually less than or equal to 99 and preferably less than or equal to 25.
  • the chlorohydrin when dichloropropanol, it is generally used in the form of a mixture of compounds. comprising the isomers of 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. This mixture generally contains more than 1% by weight of the two isomers, preferably more than 5% by weight and more particularly more than 50%.
  • the mixture usually contains less than 99.9% by weight of the two isomers, preferably less than 95% by weight and most preferably less than 90% by weight.
  • the other constituents of the mixture may be compounds from dichloropropanol production processes, such as residual reagents, reaction by-products, solvents and in particular water.
  • the weight ratio between the 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol isomers is usually greater than or equal to 0.01, often greater than or equal to 0.4, frequently greater than or equal to 1 , 5, preferably greater than or equal to 3.0, more preferably greater than or equal to 7.0 and most preferably greater than or equal to 20.0. This ratio is usually less than or equal to 99 and preferably less than or equal to 25.
  • the chlorohydrin obtained in the process according to the invention may contain a high content of halogenated ketones, in particular chloroacetone, as described in the patent application FR 05.05120 of 20/20172005 filed in the name of the Applicant, and whose content is hereby incorporated by reference.
  • the content of halogenated ketone can be reduced by subjecting the chlorohydrin obtained in the process according to the invention to azeotropic distillation in the presence of water or by subjecting the chlorohydrin to a dehydrochlorination treatment as described in this application, on page 4, line 1, page 6, line 35.
  • the chlorohydrin obtained in the process according to the invention can be subjected to a dehydrochlorination reaction to produce an epoxide as described in the patent applications WO 2005/054167 and FR 05.05120 filed in the name of SOLVAY SA
  • epoxide is used herein to describe a compound having at least one oxygen bridged on a carbon-carbon bond. Generally the carbon atoms of the carbon-carbon bond are adjacent and the compound may contain other atoms than carbon and oxygen atoms, such as hydrogen atoms and halogens. Preferred epoxides are ethylene oxide, propylene oxide and epichlorohydrin. The dehydrochlorination of the chlorohydrin can be carried out as described in the application entitled "Process for producing an epoxide from a polyhydroxylated aliphatic hydrocarbon and a chlorinating agent" deposited in the name of SOLVAY SA on the same day as the present application, and the content of which is hereby incorporated by reference.
  • a process for producing an epoxide in which a reaction medium resulting from the reaction between a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them, is subjected to and a chlorinating agent, the reaction medium containing at least 10 g of chlorohydrin per kg of reaction medium, to a subsequent chemical reaction without intermediate treatment.
  • Epoxide manufacturing comprising the steps of: (a) reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture thereof, with a chlorinating agent and an organic acid to form chlorohydrin and chlorohydrin esters in a reaction medium containing polyhydroxylated aliphatic hydrocarbon, polyhydroxylated aliphatic hydrocarbon ester, water, the chlorinating agent and the organic acid, the reaction medium containing at least 10 g of chlorohydrin per kg of reaction medium, (b) subjecting at least a fraction of the reaction medium obtained in step (a), which fraction has the same composition as the reaction medium obtained in step (a), one or more treatments in steps subsequent to step (a) and (c) is added a basic compound to at least one of the steps subsequent to step (a); ) so that he reacts at least partially with the chlorohydrin, the chlorohydrin esters, the chlorinating agent and the organic acid to form epoxide
  • the process for the production of the chlorohydrin according to the invention can be integrated into an overall scheme for producing an epoxide as described in the application entitled "Process for producing an epoxide from a chlorohydrin" deposited in the name of SOLVAY SA the same day as the present application, and the contents of which are hereby incorporated by reference.
  • a process for the production of an epoxide comprising at least one step of purifying the epoxide formed, the epoxide being at least partly produced by a process for the dehydrochlorination of a chlorohydrin, the latter being at least partly manufactured by a method of chlorinating a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon, or a mixture of them.
  • a portion of the mixture obtained in step (a) is taken and this part is subjected to oxidation at a temperature greater than or equal to 800 ° C. during the sampling.
  • a portion of the mixture obtained in step (a) is taken and at least part of the mixture obtained in step (a) is subjected to one or more treatments in steps subsequent to step (a) so as to obtain one or more treated parts and subjected at least one of the treated parts to oxidation at a temperature greater than or equal to 800 ° C.
  • the treatment of step (b) may be a separation operation, for example a decantation, filtration, centrifugation, extraction, washing, evaporation, stripping, distillation, adsorption, absorption or combinations of at least two of them.
  • oxidation is meant a reaction in the presence of at least one oxidizing agent.
  • the oxidizing agent may be selected from water, oxygen, chlorine oxides, nitrogen oxides, their mixtures and mixtures with nitrogen.
  • the oxidation temperature is greater than or equal to 800 ° C. and more particularly greater than or equal to 1000 ° C. This temperature is generally less than or equal to 10,000 ° C., often less than or equal to 1500 ° C., frequently less than or equal to at 1450 ° C. and more particularly less than or equal to 1400 ° C.
  • the oxidation at high temperature is generally carried out at a pressure generally greater than or equal to 0.1 bar, often greater than or equal to 0.5 bar and more particularly higher or equal to 0.8 bar. This pressure is generally less than or equal to 3 bar, preferably less than or equal to 2.5 bar and frequently less than or equal to 1 bar.
  • the duration of the oxidation reaction is generally greater than or equal to 1.0 s, often greater than or equal to 1.5 s and more particularly greater than or equal to 1 s. This duration is generally less than or equal to 20 s, frequently less than or equal to 15 s and in particular less than or equal to 10 s.
  • An example of an oxidation process at a temperature greater than or equal to 850 ° C. is that in which chlorinated and oxygenated organic compounds are oxidized in the form of carbon dioxide, hydrogen chloride and water.
  • Another example method of oxidation at a temperature greater than or equal to 800 ° C. is that in which chlorinated and oxygenated organic compounds are oxidized in a plasma at a temperature generally greater than or equal to 3000 ° C.
  • the chlorinating agent for example hydrogen chloride
  • the chlorinating agent for example hydrogen chloride
  • step (c) can be recycled to step (a) after a possible treatment.
  • This treatment may for example consist of an absorption operation in an aqueous solution followed by a possible partial desorption of gaseous hydrogen chloride. This recycling is particularly advantageous when the chlorinating agent contains hydrogen chloride.
  • the polyhydroxylated aliphatic hydrocarbon is preferably glycerol and the chlorohydrin is preferably dichloropropanol.
  • chlorohydrin is dichloropropanol
  • the process according to the invention can be followed by the manufacture of epichlorohydrin by dehydrochlorination of dichloropropanol and epichlorohydrin can be used in the manufacture of epoxy resins.
  • Figure 1 shows a particular installation scheme used to implement the separation method according to the invention.
  • a reactor (4) is fed continuously or in batch mode with a polyhydroxylated aliphatic hydrocarbon, a polyhydroxylated aliphatic hydrocarbon ester, or a mixture of them, via the line (1) and into a catalyst via the line ( 2), the supply of chlorinating agent is carried out in continuous mode or in batch mode via line (3), a distillation column (6) is supplied via line (5) with vapors produced in the reactor (4). ), a stream is withdrawn from the column (6) via the line (7) and is introduced into a condenser (8), the flow from the condenser is introduced via the line (9) into a decanter (10) in which Aqueous and organic phases are separated.
  • a fraction of the separated aqueous phase is optionally recycled via line (11) to the top of the column to maintain reflux.
  • Fresh water can be introduced into the line (11) via the line (12).
  • the production of chlorohydrin is distributed between the organic phase withdrawn via line (14) and the aqueous phase withdrawn via line (13).
  • the residue of the column (6) can be recycled to the reactor (4) via line (15).
  • a fraction of the heavy products is withdrawn from the reactor (4) via the purge (16) and is introduced via line (17) into an evaporator (18) in which a partial evaporation operation is carried out for example by heating or by sweeping gaseous with nitrogen or water vapor, the gaseous phase containing most of the flow chlorinating agent (17) is recycled via line (19) to column (6) or via the line (20) to the reactor (4), a distillation or stripping column (22) is fed with the liquid phase from the stripping apparatus (18) via the line (21), the major part of the chlorohydrin is collected at the top of the column (22) via line (23).
  • the residue which contains heavy compounds is recycled to the reactor (4) via the line (31), a fraction of these heavy comps is withdrawn and introduced into a pre-treatment unit (34) via the line (32), the heavy compounds recoverable in the process of chlorination of the polyhydroxylated aliphatic hydrocarbon are recycled to the reactor (4) via the line (35) and the non-recoverable heavy compounds are sent via the line (36) in a high-temperature oxidation unit. temperature (37) supplied with air via the line (38), from which a flow containing hydrogen chloride is withdrawn via the line (41).
  • the oxidation unit may optionally be supplied by another stream of combustible substances (39) optionally containing chlorinated compounds of other manufactures such as the synthesis of chloroalkanes, the synthesis of tetrachloromethane and perchlorethylene by chlorinolysis and the synthesis of 1 , 2-dichloroethane.
  • a top-up of water or an aqueous solution of hydrogen chloride may optionally be provided via line (40) to reduce the chlorine content in the stream containing hydrogen chloride product.
  • Hydrogen chloride from the high temperature oxidation unit (37) is optionally recycled to the chlorination agnet feed of the reactor (4) via line (42).
  • the filtration column (25) is then short-circuited.
  • the heavy compounds from the column (22) are sent via the line (24) into the filtration unit (25) in which liquid and solid phases are separated, a fraction of the liquid phase is recycled via the line (26) to the reactor (4).
  • the recycling of the heavy compounds to the reactor (4) via the line (31) is then short-circuited.
  • the solid can be withdrawn from the filtration unit (25) via the line (27) in the form of a solid or a solution.
  • Solvents may be added to the filter unit (25) via lines (28) and (29) for washing and / or dissolving the solid and withdrawn via line (27).
  • a fraction of the liquid phase recycled to the reactor (4) via the line (26) is withdrawn and sent to a pre-treatment unit (34) via the line (33).
  • a stream is withdrawn from the purge (16) and introduced via the line (30) into the filtration unit (25).
  • the stripping apparatus (18) and the distillation column (22) are then short-circuited.
  • the stream withdrawn from the purge (16) directly feeds the pretreatment unit (34).
  • the filtration column is then short-circuited.
  • the pretreatment unit for heavy compounds (34) is short-circuited.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Epoxy Resins (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Paints Or Removers (AREA)
EP06755268A 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle Withdrawn EP1885672A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06755268A EP1885672A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
FR0505120A FR2885903B1 (fr) 2005-05-20 2005-05-20 Procede de fabrication d'epichlorhydrine
EP05104321A EP1762556A1 (en) 2005-05-20 2005-05-20 Process for producing dichloropropanol from glycerol
US73463505P 2005-11-08 2005-11-08
US73465705P 2005-11-08 2005-11-08
US73462705P 2005-11-08 2005-11-08
US73465805P 2005-11-08 2005-11-08
US73463705P 2005-11-08 2005-11-08
US73463605P 2005-11-08 2005-11-08
US73465905P 2005-11-08 2005-11-08
US73463405P 2005-11-08 2005-11-08
PCT/EP2006/062444 WO2006100315A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle
EP06755268A EP1885672A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle

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EP1885672A2 true EP1885672A2 (fr) 2008-02-13

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Family Applications (16)

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EP06755269.5A Not-in-force EP1885673B1 (fr) 2005-05-20 2006-05-19 Fabrication de chlorhydrine en phase liquide en presence de composes lourds
EP06755271A Withdrawn EP1885706A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'un epoxyde au depart d'un hydrocarbure aliphatique poly hydroxyle et d'un agent de chloration
EP10182309A Withdrawn EP2275417A3 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06763200A Withdrawn EP1891032A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'un epoxyde au depart d'une chlorhydrine
EP06755263A Withdrawn EP1904427A2 (en) 2005-05-20 2006-05-19 Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts
EP10182191.6A Active EP2284162B1 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06755267A Withdrawn EP1885671A1 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine au depart d'un hydrocarbure aliphatique poly hydroxyle
EP06755264A Withdrawn EP1890988A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine
EP10182403A Withdrawn EP2284163A3 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06755262.0A Active EP1885705B1 (fr) 2005-05-20 2006-05-19 Procédé de fabrication d'un époxyde
EP06763198A Withdrawn EP1885678A1 (fr) 2005-05-20 2006-05-19 Procede continu de fabrication de chlorhydrines
EP06755270A Withdrawn EP1885674A1 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine dans des equipements resistant a la corrosion
EP06755272A Withdrawn EP1885675A1 (fr) 2005-05-20 2006-05-19 Procede de preparation de chlorhydrine par conversion d'hydrocarbures aliphatiques poly hydroxyles
EP06763189A Withdrawn EP1885677A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par reaction entre un hydrocarbure aliphatique poly hydroxyle et un agent de chloration
EP06755273A Withdrawn EP1885676A2 (fr) 2005-05-20 2006-05-19 Procede de conversion d'hydrocarbures aliphatiques poly hydroxyles en chlorhydrines
EP06755268A Withdrawn EP1885672A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par chloration d'un hydrocarbure aliphatique poly hydroxyle

Family Applications Before (15)

Application Number Title Priority Date Filing Date
EP06755269.5A Not-in-force EP1885673B1 (fr) 2005-05-20 2006-05-19 Fabrication de chlorhydrine en phase liquide en presence de composes lourds
EP06755271A Withdrawn EP1885706A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'un epoxyde au depart d'un hydrocarbure aliphatique poly hydroxyle et d'un agent de chloration
EP10182309A Withdrawn EP2275417A3 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06763200A Withdrawn EP1891032A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'un epoxyde au depart d'une chlorhydrine
EP06755263A Withdrawn EP1904427A2 (en) 2005-05-20 2006-05-19 Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts
EP10182191.6A Active EP2284162B1 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06755267A Withdrawn EP1885671A1 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine au depart d'un hydrocarbure aliphatique poly hydroxyle
EP06755264A Withdrawn EP1890988A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine
EP10182403A Withdrawn EP2284163A3 (en) 2005-05-20 2006-05-19 Process for producing dichloropropanol
EP06755262.0A Active EP1885705B1 (fr) 2005-05-20 2006-05-19 Procédé de fabrication d'un époxyde
EP06763198A Withdrawn EP1885678A1 (fr) 2005-05-20 2006-05-19 Procede continu de fabrication de chlorhydrines
EP06755270A Withdrawn EP1885674A1 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine dans des equipements resistant a la corrosion
EP06755272A Withdrawn EP1885675A1 (fr) 2005-05-20 2006-05-19 Procede de preparation de chlorhydrine par conversion d'hydrocarbures aliphatiques poly hydroxyles
EP06763189A Withdrawn EP1885677A2 (fr) 2005-05-20 2006-05-19 Procede de fabrication d'une chlorhydrine par reaction entre un hydrocarbure aliphatique poly hydroxyle et un agent de chloration
EP06755273A Withdrawn EP1885676A2 (fr) 2005-05-20 2006-05-19 Procede de conversion d'hydrocarbures aliphatiques poly hydroxyles en chlorhydrines

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US (12) US8344185B2 (enExample)
EP (16) EP1885673B1 (enExample)
JP (13) JP2008540613A (enExample)
KR (7) KR101337048B1 (enExample)
CN (13) CN101031532B (enExample)
BR (8) BRPI0610744A2 (enExample)
CA (13) CA2608956A1 (enExample)
EA (14) EA200702548A1 (enExample)
MX (7) MX2007014532A (enExample)
MY (4) MY158842A (enExample)
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WO (13) WO2006100313A2 (enExample)

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EA200800128A1 (ru) 2003-11-20 2008-04-28 Солвей (Сосьете Аноним) Способ получения хлорированного органического соединения, эпихлоргидрина и эпоксидных смол из возобновляемого сырья
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