A process for manufacturing of an alkanesulfonic acid, and an alkanesulfonic acid manufactured by the process. Aspects of the process may involve manufacturing an alkanesulfonic acid by reaction of an initiator composition with an alkane and sulfur trioxide by preparing an initiator composition by reacting aqueous hydrogen peroxide with alkanesulfonic acid and/or H.sub.2SO.sub.4; and reacting the initiator composition with sulfur trioxide and alkane to form an alkanesulfonic acid, wherein an alkane with a purity of at least 98.0 mol-% is used.

A process for manufacturing of an alkanesulfonic acid, and an alkanesulfonic acid manufactured by the process. Aspects of the process may involve manufacturing an alkanesulfonic acid by reaction of an initiator composition with an alkane and sulfur trioxide by preparing an initiator composition by reacting aqueous hydrogen peroxide with alkanesulfonic acid and/or H.sub.2SO.sub.4; and reacting the initiator composition with sulfur trioxide and alkane to form an alkanesulfonic acid, wherein an alkane with a purity of at least 98.0 mol-% is used.

For methane activation, various sulfonation systems using SO.sub.3 or H.sub.2SO.sub.4 have been well studied, however, sulfur dioxide (SO.sub.2), a preliminary source of SO.sub.3 and H.sub.2SO.sub.4, has not been used successfully. Herein, we report a novel methane sulfonation method to produce methanesulfonic acid (MSA) utilizing sulfur dioxide by a free radical mechanism. In the presence of H.sub.2O.sub.2 as a radical initiator, the reaction of SO.sub.2 and O.sub.2 in trifluoroacetic acid (TFAOH) furnished trifluoroacetylsulfuric acid (TFAOSO.sub.3H), which served as the radical propagator to facilitate H-abstraction of methane at low temperatures. In typical reactions, sulfur dioxide was incorporated into MSA in 75% with high selectivity at 60° C.

For methane activation, various sulfonation systems using SO.sub.3 or H.sub.2SO.sub.4 have been well studied, however, sulfur dioxide (SO.sub.2), a preliminary source of SO.sub.3 and H.sub.2SO.sub.4, has not been used successfully. Herein, we report a novel methane sulfonation method to produce methanesulfonic acid (MSA) utilizing sulfur dioxide by a free radical mechanism. In the presence of H.sub.2O.sub.2 as a radical initiator, the reaction of SO.sub.2 and O.sub.2 in trifluoroacetic acid (TFAOH) furnished trifluoroacetylsulfuric acid (TFAOSO.sub.3H), which served as the radical propagator to facilitate H-abstraction of methane at low temperatures. In typical reactions, sulfur dioxide was incorporated into MSA in 75% with high selectivity at 60° C.

For methane activation, various sulfonation systems using SO.sub.3 or H.sub.2SO.sub.4 have been well studied, however, sulfur dioxide (SO.sub.2), a preliminary source of SO.sub.3 and H.sub.2SO.sub.4, has not been used successfully. Herein, we report a novel methane sulfonation method to produce methanesulfonic acid (MSA) utilizing sulfur dioxide by a free radical mechanism. In the presence of H.sub.2O.sub.2 as a radical initiator, the reaction of SO.sub.2 and O.sub.2 in trifluoroacetic acid (TFAOH) furnished trifluoroacetylsulfuric acid (TFAOSO.sub.3H), which served as the radical propagator to facilitate H-abstraction of methane at low temperatures. In typical reactions, sulfur dioxide was incorporated into MSA in 75% with high selectivity at 60° C.

Sulfate and sulfonate derivatives of unsaturated fatty alcohols, processes for making them, and methods of using them are disclosed. In one aspect, a monounsaturated fatty alcohol composition is made by reducing a metathesis-derived monounsaturated alkyl ester. The fatty alcohol composition is then converted to a sulfate or sulfonate derivative by one or more of alkoxylation, sulfation, sulfonation, and sulfitation. Of particular interest are the sulfate and ether sulfate derivatives. Microscopy studies indicate that the unsaturated sodium sulfates in particular have a lamellar phase that should enable formulation at high actives levels. Sulfate compositions comprising 40 to 60 wt. % of a monounsaturated fatty primary alcohol sulfate and 40 to 60 wt. % of a secondary hydroxyalkyl primary alcohol sulfate are also disclosed. The derivatives and sulfate compositions are valuable for many end-use applications, including, for example, agricultural dispersants, water-soluble herbicides, anionic emulsifiers for agricultural use, hard surface cleaners, light-duty liquid detergents, personal cleansers, gas well foamers for oilfield applications, laundry detergents, enhanced oil recovery compositions, latex paints, and specialty foams.

Sulfate and sulfonate derivatives of unsaturated fatty alcohols, processes for making them, and methods of using them are disclosed. In one aspect, a monounsaturated fatty alcohol composition is made by reducing a metathesis-derived monounsaturated alkyl ester. The fatty alcohol composition is then converted to a sulfate or sulfonate derivative by one or more of alkoxylation, sulfation, sulfonation, and sulfitation. Of particular interest are the sulfate and ether sulfate derivatives. Microscopy studies indicate that the unsaturated sodium sulfates in particular have a lamellar phase that should enable formulation at high actives levels. Sulfate compositions comprising 40 to 60 wt. % of a monounsaturated fatty primary alcohol sulfate and 40 to 60 wt. % of a secondary hydroxyalkyl primary alcohol sulfate are also disclosed. The derivatives and sulfate compositions are valuable for many end-use applications, including, for example, agricultural dispersants, water-soluble herbicides, anionic emulsifiers for agricultural use, hard surface cleaners, light-duty liquid detergents, personal cleansers, gas well foamers for oilfield applications, laundry detergents, enhanced oil recovery compositions, latex paints, and specialty foams.

A process for manufacturing of an alkanesulfonic acid, and an alkanesulfonic acid manufactured by the process. Aspects of the process may involve manufacturing an alkanesulfonic acid by reaction of an initiator composition with an alkane and sulfur trioxide by preparing an initiator composition by reacting aqueous hydrogen peroxide with alkanesulfonic acid and/or H.sub.2SO.sub.4; and reacting the initiator composition with sulfur trioxide and alkane to form an alkanesulfonic acid, wherein an alkane with a purity of at least 98.0 mol-% is used.

A process for manufacturing of an alkanesulfonic acid, and an alkanesulfonic acid manufactured by the process. Aspects of the process may involve manufacturing an alkanesulfonic acid by reaction of an initiator composition with an alkane and sulfur trioxide by preparing an initiator composition by reacting aqueous hydrogen peroxide with alkanesulfonic acid and/or H.sub.2SO.sub.4; and reacting the initiator composition with sulfur trioxide and alkane to form an alkanesulfonic acid, wherein an alkane with a purity of at least 98.0 mol-% is used.

Disclosed is a high-efficiency cyclic preparation method for a columnar taurine finished product, including: preparing an aqueous taurine solution with a certain concentration; introducing the aqueous taurine solution into a basic resin for treatment to remove an alkali metal isethionate and an isethionic acid derivative; monitoring an effluent liquid at an outlet of the basic resin and collecting the effluent liquid that is monitored to be qualified; and crystallizing taurine of the collected effluent liquid to obtain a taurine crystal. The method of the present disclosure has the advantages of process innovation, and high efficiency, and the obtained taurine crystal has the advantages of good quality, good fluidity, no caking, low production cost and high efficiency, and has good prospects for industrial production.