Abstract: The invention relates to a process for dehumidifying a moist gas mixture in which the moist gas mixtures are brought into contact with an absorbent comprising dialkylimidazolium salts and trialkyl phosphate. In addition, the invention also relates to an absorption heat pump comprising the absorbent according to the invention and to the absorbent according to the invention itself.

Abstract: Phosphate ester compounds are prepared by reacting phosphoryl chloride with at least one mono(alkylene glycol) monoether or poly(alkylene glycol) monoether, or a mixture at least one mono(alkylene glycol) monoether or poly(alkylene glycol) monoether and at least one alkylene glycol or polyalkylene glycol, in the presence of at least three moles per mole of phosphoryl chloride of a pyridinyl compound that is devoid of aliphatic nitrogen atoms.

Abstract: Novel synthetic routes, which are highly applicable for industrial preparation of therapeutically beneficial oxidized phospholipids are disclosed. Particularly, novel methods for efficiently preparing compounds having a glycerolic backbone and one or more oxidized moieties attached to the glycerolic backbone, which are devoid of column chromatography are disclosed. Further disclosed are novel methods of introducing phosphorous-containing moieties such as phosphate moieties to compounds having glycerolic backbone and intermediates firmed thereby.

Abstract: Product, method of making product, and technique for using product to separate oil from water via a filter, such as cotton, polyester, or leather, coated with a chemical that blocks oil while allowing water to pass therethrough.

Abstract: A process for the formation of a di(hydroxyalkylaryl) aryl phosphate is disclosed which comprises the reaction of an o-alkyl substituted aromatic diol, e.g., an o-alkyl substituted hydroquinone such as o-t-butylhydro-quinone, and monoaryl dihalophosphate, such as monophenyl dichlorophosphate. This process can, in particular, be used to make certain di(hydroxy-o-alkylphenyl) phenyl phosphate compounds, preferably those that are p-hydroxy, such as di(p-hydroxy-o-t-butylphenyl) phenyl phosphate.

Abstract: The invention relates to a process for preparing bis(3-t-butyl-4-hydroxyphenyl-2,4-di-t-butylphenyl)resorcinol diphosphate, which has characteristics of high conversion and high selectivity, and which comprises of charging sequentially phenolic compounds, phosphoryl chloride, catalyst and organic base, heating the reaction mixture for carry out a three-stage esterification reaction and improving the purity of the product through molecular designing; dissolving the product in an organic solvent and removing residual hydrochloride salt with a small amount of ammonia gas, thereby achieving the object of purification without generation of waste water and waste product.

Abstract: A process for the preparation of C.sub.14 -C.sub.18 -alkylphosphocholines by reacting an n-alkanol with a chain length of C.sub.14 -C.sub.18 with phosphorus oxychloride in an inert solvent or also without solvent in the presence or absence of a basic substance in a single vessel process and subsequent reaction of the reaction product in an inert solvent with a choline salt in the presence of a basic substance to form phosphoric acid diester chloride, subsequent hydrolysis and isolation of alkylphosphocholine as well as optionally purification using a mixed-bed ion exchanger or in successive steps with an acid ion exchanger and a basic ion exchanger.

Abstract: The invention relates to process for the preparation of an O-alkyl, O-alkyl phosphorochloridothioate by 1) reacting A) a thiophosphoryl halide with B) an alcohol, in the presence of C) a tertiary amine acid acceptor and D) a solvent, and 2) reacting the resultant product with a second alcohol, different from the alcohol used in step 1). In the preferred embodiment, the intermediate product is not isolated before reaction with the second alcohol.

Abstract: A process of preparing a tribromoneopentyl chloroalkyl phosphate of the formula (3): ##STR1## , wherein R is hydrogen atom, an alkyl or chloroalkyl group. The process includes three steps: In the first step, an alkylene oxide is reacted with phosphorus trichloride in a chemical equivalent or less amount to the alkylene oxide to obtain a tris(chloroalkyl) phosphite of the formula (1): ##STR2## , wherein R is the same as defined above. In the second step, the tris(chloroalkyl) phosphite is reacted with chlorine to obtain a bis(chloroalkyl) phosphorochloridate of the formula (2): ##STR3## , wherein R is the same as defined above. And in the third step, the bis(chloroalkyl) phosphorochloridate is reacted with tribromoneopentyl alcohol.

Abstract: An improved process for producing ethylenically unsaturated phosphate ester compounds, especially 2-(methacryloyloxyethyl)-2' (trimethylammoniomethyl) phosphate, (HEMA-PC) comprises a two step reaction in the first of which a phospholane reagent is reacted with a hydroxyl containing ethylenically unsaturated starting material, and in the second of which the intermediate formed in the first step is ring opened by reaction with trimethylamine to produce a zwitterionic product. In the process the two steps of the reaction are carried out in the same solvent with substantially no removal or addition of solvent after the first step. The solvent is preferably acetonitrile. The use of pure reagents avoids the production of undesirable by-products. The product is suitable for polymerising, for instance to provide cross-linked hydrogel copolymers used in ophthalmic applications.

Abstract: A polyalkylene glycol ether phosphate ester, or salt thereof, having the formula:R.sub.w --P(O)(OH).sub.3-w (I)wherein w is an integer from 1 to 3, andR is an oil-soluble polyether moiety having the formula:R.sup.1 X[(C.sub.x H.sub.2x O).sub.n (C.sub.y H.sub.2y O).sub.p ].sub.m(II)wherein R.sup.1 is either an alkyl or an alkyl phenyl group having from 7 to 30 carbon atoms,X is either O, S, or Nx is an integer from 2 to 4,y is an integer from 6 to 30,m is 1 when X is O or S and m is 2 when X is N,n and p are such that the polyether moiety contains between 1 and 35% by weight of (C.sub.y H.sub.2y O) units and between 35 and 80% by weight of (C.sub.x H.sub.2x O) units, and the molecular weight of the polyalkylene glycol moiety is between 500 and 5000 is disclosed,The phosphate ester can be prepared by reacting a polyether with a phosphating agent, e.g. phosphorus pentoxide and water. Lubricating oil compositions comprising the phosphate ester or salt thereof are also disclosed.

Abstract: The present invention is directed to the preparation of certain phosphorothioates and phosphonoates by means of a process which employs a three-phase system for the reaction of an alkali metal or alkaline earth metal phenate, pyridinate or pyrimidinate with a phosphorochloridothioate or phosphorochloridate under alkaline conditions and in the presence of tertiary amine and quarternary ammonium salt co-catalyst, but in the absence of both a hydrocarbon or chlorinated hydrocarbon solvent and a surfactant.

Abstract: The O-alkyl S,S-dialkylphosphorodithioates, e.g., ethoprophos, are facilely prepared, in improved yields and having great purity, by reacting an alkylphosphate dihalogenide, e.g., a dichloride, with a 1.5 to 8 mol excess of a thiol, in the presence of a 0.1 to 5 mol excess of an acid acceptor, with both molar excesses being per mole of said dihalogenide.

Abstract: In the preparation of a (thiono)phosphoric ester of the formula ##STR1## in which X represents oxygen or sulphur,R and R.sup.1 are identical or different and represent alkyl, andR.sup.2 represents optionally substituted aryl or represents optionally substituted hetaryl having at least one nitrogen atom,wherein a hydroxyl derivative of the formulaR.sup.2 --OHor an ammonium, alkali metal or alkaline earth metal salt thereof is reacted with a (thiono)phosphoric halide of the formula ##STR2## in which Hal represents halogen,the improvement which comprises effecting the reaction in the presence of a bicyclic organic amine as catalyst. Advantageously the reaction is effected in a diluent in the presence of potassium carbonate as an acid acceptor at 20.degree. to 100.degree. C., and 0.8 to 1.5 mols of the halide and 0.005 to 0.5 mol of 1,4-diazabicayclo-(2,2,2)-octane are used as bicyclic organic amine per mol of the hydroxyl compound.

Abstract: A dithiolphosphoric acid ester of the formula, ##STR1## wherein A is sec-butyl or tert-butyl group, and B is iso-propyl, n-butyl, iso-butyl, sec-butyl or tert-butyl group, which is useful as a soil pesticidal composition for pests in soil.