摘要:
Surfactants of the general formula (I) in which R 1 is a linear or branched akyl radical having 6 to 20, especially 10 to 16 C atoms, R 2 and R 3 independently of one another are H or H 3 CO, and M is hydrogen, an alkali metal or a moiety N + R 4 R 5 R 6 , in which R 4 , R 5 and R 6 independently of one another are hydrogen, an alkyl group having 1 to 6 C atoms or a hydroxyalkyl group having 2 to 6 C atoms, are readily incorporated into laundry detergents or cleaning products, possess outstanding performance qualities and can be prepared on the basis of renewable raw materials.
摘要:
A compound represented by the following formula (1):
wherein R 1 is a 2n-valent group having 1 to 60 carbon atoms; R 2 to R 5 are each independently a linear, branched, or cyclic alkyl group having 1 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, an alkoxy group having 1 to 30 carbon atoms and optionally having a substituent, a halogen atom, a nitro group, an amino group, a carboxylic acid group, a group in which a hydrogen atom of a hydroxy group is replaced with a vinylphenylmethyl group, a group selected from the group consisting of groups represented by the following formula (A), a thiol group, or a hydroxy group, wherein at least one of the R 2 to the R 5 is a group selected from a group represented by the formula (A); m 2 and m 3 are each independently an integer of 0 to 8; m 4 and m 5 are each independently an integer of 0 to 9, provided that m 2 , m 3 , m 4 , and m 5 are not 0 at the same time; n is an integer of 1 to 4; and p 2 to p 5 are each independently an integer of 0 to 2:
摘要:
This invention comprises a process and a system thereof comprising apparatuses for developing multi-component vapor mixture by heating of solution of reactants comprising one or more of diphenols, or diphenol derivatives, and an organic compound, wherein the organic compound is one which upon reacting in a vapor state in presence of a catalyst with diphenols, or diphenol derivatives, produces a monoalkyl ether of a dihydric phenolic compound; and wherein the entire solution of reactants completely transforms into a super-heated multi-component vapor using heaters without the use of thin film evaporator. The complete transformation of the entire solution of said reactants in to super-heated multicomponent vapor is achieved by heating the entire solution firstly by a pre-heater followed by further heating by a super-heater, further comprising removal of the unevaporated or condensed high boilers and tar to drain, and subjecting the superheated vapor to vapor phase reaction mediated by catalyst to get monoalkyl ether of a dihydric phenolic compound.
摘要:
The invention is directed to a process for preparing a 1,4-disubstituted cyclohexane compound of Formula (I): where A is -OH, -OR, Br, or CI; and R is a silyl group, a hydrocarbyl group, or an acyl group having 1 to 12 carbon atoms. The process includes the steps of reacting ethylene with a (2E,4E)-hexa-2,4-diene compound to produce a 3,6-disubstituted cyclohex-1 - ene compound, and hydrogenating the 3,6-disubstituted cyclohex-1 -ene compound to yield the 1,4-disubstituted cyclohexane compound of formula (I).
摘要:
The invention relates to a method for preparing polyglycerol, comprising —providing a catalyst salt on a support, the catalyst salt having catalytic activity with respect to an etherification reaction of a polyol selected from the group of glycerol and oligoglycerols, —contacting the catalyst salt on the support with a fluid phase comprising a polyol selected from the group of glycerol and oligoglycerols, —and subjecting the polyol in the fluid phase to an etherification reaction in the presence of the catalyst salt, thereby forming the polyglycerol.
摘要:
A process for the acid-catalyzed dehydration of ethanol, the process comprising the steps of distilling an ethanol feedstock (101) comprising at least one nitrogen-containing contaminant to form an overhead stream (102) and a bottom stream comprising ethanol (103), wherein the distillation has a reflux ratio of at least 20:1; and reacting the bottom stream in the presence of an acid catalyst to form a product stream comprising ethylene.
摘要:
Disclosed is a process for preparing at least one ether compound, comprising reacting at least one alcohol (I) with at least one polyol (II) in the presence of a functional polymer [polymer (F)] as a catalyst (X), wherein: the alcohol (I) is represented by the general formula (1): R1-OH (1) wherein R1 is a hydrocarbon group having 1 to 36 carbon atoms, the polyol (II) is represented by the general formula (2): R2- (OH) m (2) wherein R2 represents the skeleton moiety of the polyol and m is an integer of from 2 to 20, and polymer (F) is a polymer comprising recurring units derived from at least one ethylenically unsaturated monomer [monomer (M)] and bearing at least one cation exchange group. Further disclosed is a surfactant composition obtained by said process, and featuring an excellent detergency performance.