PROCESS FOR PRODUCING OLIGOAMINES OR POLYAMINES

    公开(公告)号:CA2201782C

    公开(公告)日:2000-11-28

    申请号:CA2201782

    申请日:1995-09-26

    Applicant: BASF AG

    Abstract: The preparation of alkoxylates of oligoamines or polyamines by a two-stage procedure where, in the first stage, one molecule of alkylene oxide per NH group is added onto the oligoamines or polyamines in the presence of water, alcohols or acids or a mixture thereof in the absence of a neutral or basic catalyst and, in the second stage, after removal of water and acids reaction with further alkylene oxide is carried out in the presence of a conventional neutral or basic catalyst, entails, before the second stage is carried out, an organic solvent or diluent or a mixture thereof from the group of (a) alcohols and phenols and their alkoxylates, (b) polyalcohols based on ethylene oxide, propylene oxide, butylene oxide or a mixture thereof, (c) N-substituted carboxamides, (d) alkanolmonoamines and alkanolpolyamines and their alkoxylates, (e) other alkoxylates of oligoamines or polyamines, (f) aromatic hydrocarbons, (g) aliphatic hydrocarbons, (h) ethers and (i) sulfones or sulfoxides being added.

    32.
    发明专利
    未知

    公开(公告)号:BR9509248A

    公开(公告)日:1997-10-21

    申请号:BR9509248

    申请日:1995-09-26

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/03809 Sec. 371 Date Apr. 7, 1997 Sec. 102(e) Date Apr. 7, 1997 PCT Filed Sep. 26, 1995 PCT Pub. No. WO96/11225 PCT Pub. Date Apr. 18, 1996The preparation of alkoxylates of oligoamines or polyamines by a two-stage procedure where, in the first stage, one molecule of alkylene oxide per NH group is added onto the oligoamines or polyamines in the presence of water, alcohols or acids or a mixture thereof in the absence of a neutral or basic catalyst and, in the second stage, after removal of water and acids reaction with further alkylene oxide is carried out in the presence of a conventional neutral or basic catalyst, entails, before the second stage is carried out, an organic solvent or diluent or a mixture thereof from the group of (a) alcohols and phenols and their alkoxylates, (b) polyalcohols based on ethylene oxide, propylene oxide, butylene oxide or a mixture thereof, (c) N-substituted carboxamides, (d) alkanolmonoamines and alkanolpolyamines and their alkoxylates, (e) other alkoxylates of oligoamines or polyamines, (f) aromatic hydrocarbons, (g) aliphatic hydrocarbons, (h) ethers and (i) sulfones or sulfoxides being added.

    34.
    发明专利
    未知

    公开(公告)号:DE4444347A1

    公开(公告)日:1996-06-20

    申请号:DE4444347

    申请日:1994-12-14

    Applicant: BASF AG

    Abstract: Use of glycine-N,N-diacetic acid derivs. of formula (I) as complexing agents for alkaline earth and heavy metal ions in the recovery and transport of crude oil and natural gas is claimed. R=1-30C alkyl or 2-30C alkenyl additionally contg. up to 5 OH's, formyl gps., 1-4C alkoxy, phenoxy or 1-4C alkoxycarbonyl, and which can be interrupted by up to 5 non-neighbouring O atoms, alkoxylate gps. of formula: -(CH2)k-O-(A1O)m-(A2O)n-Y (where A1 and A2=1,2-alkylene with 2-4C atoms; Y=H, 1-12C alkyl, phenyl, or 1-4C alkoxycarbonyl; and k=1-3; m and n=0-50; m+n=at least 4); 1-20C phenylalkyl gps.; a 5- or 6-membered (un)satd. heterocyclic ring with up to 3 heteroatoms selected from N, O and S, which can be benzanellated; 1-20C alkyl, where all phenyl cores and heterocyclic rings additionally contain up to 3 1-4C alkyls, OH, carboxyl, sulpho groups or 1-4C alkoxycarbonyl groups; or a residue of formula (II). A=1-12C alkylene bridges or a chemical bond; M=H, alkali(ne earth), NH4 or substd. NH4.

    35.
    发明专利
    未知

    公开(公告)号:DE4435688A1

    公开(公告)日:1996-04-11

    申请号:DE4435688

    申请日:1994-10-06

    Applicant: BASF AG

    Abstract: Production of oxalkylates of oligoamines or polyamines in a two-stage process in which, in the first stage, a molecule of alkylene oxide per NH group is added to the oligoamine or polyamine in the presence of water, alcohols or acids or a mixture thereof in the absence of a neutral or basic catalyst and, in the second, after the removal of water and acids, a reaction is conducted with further alkylene oxide in the presence of a conventional neutral or basic catalyst. According to this method, one adds before the second stage an organic solvent or diluting agent or a mixture of such agents from the group: (a) alcohols and phenols and their alkoxylates, (b) polyalcohols based on ethylene oxide, propylene oxide, butylene oxide or a mixture thereof, (c) N-substituted carboxylic acid amides, (d) alkanol monoamines and alkanol polyamines and their alkoxylates, (e) other oxalkylates of oligo or polyamines, (f) aromatic hydrocarbons, (g) aliphatic hydrocarbons, (h) ether and (i) sulphones or sulphoxides.

    36.
    发明专利
    未知

    公开(公告)号:NO960524L

    公开(公告)日:1996-02-09

    申请号:NO960524

    申请日:1996-02-09

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02487 Sec. 371 Date Feb. 7, 1996 Sec. 102(e) Date Feb. 7, 1996 PCT Filed Jul. 28, 1994 PCT Pub. No. WO95/04771 PCT Pub. Date Feb. 16, 1995Reaction products which are suitable as demulsifiers for crude oil emulsions, comprise olefinically unsaturated carboxylic acids and polyetherols and are obtainable by A) condensation of one or more unsaturated C3-C10-carboxylic acids or their derivatives of the general formula I I where R1 and R2 are each hydrogen, C1-C4-alkyl or carboxyl, R3 is hydrogen or methyl and R1 together with the carboxyl group may form a 5-membered or 6-membered anhydride ring, with a polyetherol of the general formula II II where R4 is a radical of a monohydric or polyhydric alcohol or of a phenol or of an alkylphenol of 7 to 30 carbon atoms or a radical of an alkylphenol/formaldehyde or alkylphenol/acetaldehyde condensate, R5 is a branched or straight-chain C2-C4-alkylene group, where different units [R5-O] may be present within a polyalkylene oxide chain, and X is an integer of from 5 to 120, in a molar ratio of compounds II to I of from 2:1 to 10:1 and in a weight ratio of from 25:1 to 1,000:1, B) polymerization of the resulting condensate with one or more unsaturated carboxylic acids I and, if required, further olefinically unsaturated monomers copolymerizable with the carboxylic acids I, the amount of the carboxylic acids I being from 50 to 100 mol %, based on the amount of the olefinically unsaturated monomers, and the molar ratio of the polyetherol II to the sum of the olefinically unsaturated monomers used in process steps A) and B) being from 1:5 to 1:200, and subsequent C) condensation of the resulting reaction mixture, with the proviso that not all hydroxyl groups are converted, and a process for their preparation, mixtures of the reaction products with organic solvents and the use of the reaction products and of the mixtures as demulsifiers for crude oil emulsions.

    Sepg. water from crude oil
    37.
    发明专利

    公开(公告)号:DE4418800A1

    公开(公告)日:1995-12-07

    申请号:DE4418800

    申请日:1994-05-30

    Applicant: BASF AG

    Abstract: A method for separating water from crude oil uses as petroleum emulsion cracking agent a mixture of A) active cracking compounds of the structural type (a) polyethyleneamine alkoxylates, (b) mono- or oligoamine alkoxylates, (c) alkoxylated alkyl phenol formaldehyde resins, (d) alkoxylated amine-modified alkyl phenol formaldehyde resins, (e) co- or terpolymers of alkoxylated acrylic or methacrylic acid esters with vinyl compounds, (f) condensation products from mono- or oligoamine alkoxylates, dicarboxylic acids and alkylene oxide block copolymers, where these condensation products may be fully or partially quaternized at the nitrogen atoms or (g) compounds (a) - (f) reacted with cross-linking agents, and B), as demulsifying agents, non-cracking polyalkyleneglycol ethers of general formulae (I): R [(OA )a—OH]n or (II): H—(OA )b—(OA )c—(OA )d—OH wherein R is a one-to-ten bond radical of a C1-C20 alkyl group, a phenyl group or an alkyl phenyl group with 1 to 20 C atoms, A to A are in each case a 1,2-alkylene group with 2 to 4 C atoms or a styrene group, n is a number from 1 to 10, a is a number from 1 to 50 and b, c and d are in each case a number from 0 to 50, the sum of b + c + d being greater than 3.

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