摘要:
An exothermic process for forming a product which may be in a liquid phase is disclosed wherein a first reactant, preferably a liquid reactant, is directly fed into a reaction zone containing mixing elements and which comprises a first compartment of a reactor. A second reactant, which is maintained at a higher pressure, is fed into a second compartment of the reactor separated from the first compartment by a porous wall. The second reactant passes through this porous wall into the reaction zone to react with the first reactant. The process thereby controls rates of the reactions and the exothermic heats generated by the reactions. Pulsatile flow in one or both reaction compartments improves mixing. An evaporator for a portion of the product improves product quality and permits higher reaction temperatures in the reactor.
摘要:
Sulfited fats prepared by oxidation of fats with oxygen-containing gas mixtures and simultaneous or subsequent sulfitation using alkali and/or ammonium hydrogen sulfites, wherein the fats used are mixtures containing(A) fats having iodine numbers below about 100 and(B) fatty acid esters having iodine numbers of from about 60 to about 100 and containing from 12 to 24 carbon atoms in the linear or branched, natural and/or synthetic fatty acid residue and from 1 to 5 carbon atoms in the monofunctional alcohol residuethe ratio by weight of (A) to (B) being from about 9:1 to about 1:4.
摘要:
Sulfited fats prepared by oxidation of fats with oxygen-containing gas mixtures and simultaneous or subsequent sulfitation using alkali and/or ammonium hydrogen sulfites, wherein the fats used are mixtures containing(A) fats having iodine numbers below about 100 and(B) fatty acid esters having iodine numbers of from about 60 to about 100 and containing from 12 to 24 carbon atoms in the linear or branched, natural and/or synthetic fatty acid residue and from 1 to 5 carbon atoms in the monofunctional alcohol residue,the ratio by weight of (A) to (B) being from about 9:1 to about 1:4.
摘要:
A sulfonation apparatus comprising a gas feeder for feeding a first stream of SO.sub.3 -containing gas and a second stream of inert gas into contact with an annular film of sulfonatable material.
摘要:
An improved process is provided for the continuous sulphonation and/or sulphation of organic substances with sulphur trioxide gas mixed with an inert gaseous diluent, at an increased production rate without impairment of product quality, while minimizing discoloration of the product, and the amounts of unsulphonated product in the product, and of unreacted sulphur trioxide in the residual gaseous mixture, by limiting the amount of sulphur trioxide introduced ab initio into the organic liquid to be sulphonated and/or sulphated to not exceeding 7%, and preferably within the range from about 0.25 to about 5%, of the stoichiometric amount required for the desired sulphonated or sulphated product, introducing the remaining sulphur trioxide over from about 20 to about 80%, preferably from about 25 to about 50%, of the remainder of the length of the reaction zone.
摘要:
A process for the sulfonation of aromatic compounds wherein an aromatic substance consisting of one or more aromatic compounds is brought to boiling at a temperature not greater than 100.degree.C under a pressure of from 0.1 mm Hg to atmospheric pressure, gaseous sulfur trioxide is introduced thereinto, thereby causing it to continue to boil, the aromatic substance thus volatilized is reconverted to liquid in a heat-exchanger and is recycled to the reaction chamber, and the pressure in the reaction chamber and the rate at which the gaseous sulfur trioxide is introduced into the aromatic substance are controlled to ensure that the amount of liquid aromatic substance present in the reaction chamber and available for participation in the sulfonation reaction is always in excess of that amount of said aromatic substance capable of reacting with the gaseous sulfur trioxide in contact with the aromatic substance in the reaction chamber and that the temperature of the reaction mixture is a temperature of 100.degree.C or below.
摘要:
In the process for sulfonation by contacting a falling thin film stream of organic compound with a stream of SO3-inert gas in parallel, an improved process for isothermal sulfonation producing sulfonates of high quality, which comprises making a SO3-containing cooling gas (wherein the SO3 content is 1 to 20 wt.% relative to the whole amount of SO3 to be employed) in the amount of about 2 to 12 times (by volume) as much as the total amount of said stream of SO3-inert gas flow in parallel between said falling thin film stream of organic compound and said stream of SO3-inert gas.
WHEREIN A REPRESENTS THE RESIDUE OF A DIZAOTISABLE AROMATIC OR HETEROCYCLIC AMINE, B REPRESENTS THE RESIDUE OF A COUPLING COMPOUND, R1 REPRESENTS A HYDROGEN ATOM OR AN ALKYL OR ARYL RESIDU, R2 REPRESENTS A HYDROGEN ATOM OR AN ALKYL RESIDUE, AND X'' AND Y'' EACH REPRESENT HYDROGEN OR HALOGEN ATOMS OR HYDROXY, ALKOXY, CARBOXY, SULPHO OR
1-(B-N=N-),4-(HO3S-),(HO3S-),X'',Y''-DECALIN
1,2,3,4,4A,7,8,8A-OCTAHYDRONAPHTHALENE
1-(R1-N(-R2)-),2-(A-N=N-),3,4-DI(HO3S-),X'',Y''-
THE PRESENT INVENTION RELATES TO A PROCESS FOR THE SULPHONOATION OF AN AROMATIC OR HETEROCYCLIC POLYNUCLEAR AMINE WHICH COMPRISES TREATING THE AMINE, DISPERSED OR DISSOLVED IN AN AQUEOUS SOLUTION OF A WATER-SOLUBLE SALT OF SULPHUROUS ACID, WITH AN OXIDISING AGENT OF WHICH THE OXIDATION POTENTIAL, MEASURED AT 20*C, AND PH( WITH RESPECT TO THE NORMAL HYDROGEN ELECTRODE, IS BETWEEN +0.4 AND +0.7 VOLT, THE PH OF THE MEDUM BEING MAINTAINED APPROXIMATELY CONSTANT AT A VALUE BETWEEN 3 AND 9.5. IT ALSO RELATES TO NEW SULPHONATED POLYNUCLEAR AMINES AND TO AZO DYESTUFFS HAVING ONE OF THE FORMULAE: