摘要:
The invention relates to the use of straight chain and/or branched fatty alcohols with at least 12 C-atoms in the molecule and/or the use of the mixtures of such fatty alcohols with carboxylic acid esters as an additive with a lubricant effect in water-based drilling fluid systems for the use thereof in soil exploration. The fatty alcohol based lubricant or lubricant systems are especially suited for use in water-based alkaline silicate drilling fluid systems, characterized in a manner known per se by relatively high pH values of the aqueous drilling fluid system. The inventive additives combine a lubricant effect with antifroth action or prevention of undesired foam formation.
摘要:
The invention relates to a method for eliminating weeds using hot foam. According to said method, selected anionic surfactants, optionally combined with additional auxiliary agents and additives, are added to the hot foam.
摘要:
The invention relates to the use of partial glycerides of predominantly unsaturated C16-24- fatty acids, preferably with a pour point measured according to DIN ISO 3061 of max. 10 °C, optionally mixed with anionic tensides, as lubricants in drilling fluids such as those used for exploratory drilling that contain water and a separate oil phase.
摘要:
The invention relates to a method for demulsifying emulsions containing water and oil into a water and oil phase by adding demulsifiers. According to the invention, alkoxylation products of C10-24-carboxylic acid esters containing OH groups are used as demulsifiers.
摘要:
The invention relates to the use of partial glycerides of predominantly unsaturated C16-24- fatty acids, preferably with a pour point measured according to DIN ISO 3061 of max. 10 DEG C, optionally mixed with anionic tensides, as lubricants in drilling fluids such as those used for exploratory drilling that contain water and a separate oil phase.
摘要:
Disclosed is a method for protecting metal surfaces against corrosion in liquid, aqueous, non-aqueous or gaseous media, characterized in that compounds of formula (I) are added to the media, whereby in formula (I) the radicals R , R and R mean individually an alkyl or hydroxy alkyl radical with 1 to 4 C atoms, an alkyl or alkyl aryl radical or a radical of formula (II), in which n stands for 2 or 3, p is 1 to 3 and R means an alkyl or alkenyl radical with 7 to 23 C atoms and 0, 1, 2 or 3 double bonds, A represents an anion, and R means a radical of formula (II) or formula (III), wherein R , R and R have the above-cited meaning and Z stands for a group (CH2)m- or a group of formula (IV) where m represents a whole number between one and 6, X is a group NH or oxygen and D means a dimer fatty acid radical with in average 36 to 54 C atoms.
摘要:
Use of biodegradable alcoxylation products for cleaning boreholes, boring instruments or borings, and which are obtained by the reaction of ethylene oxide, propylene oxide and/or butylene oxide with C10-22 carboxylic acid or C10-22 carboxylic acid derivatives, which at least in position 9/10 and/or 13/14 have structural units of general formula (I), in which R means a hydrogen atom, or an OH group or an OR group, R means an alkyl group with 1 to 18 C atoms, an alkenyl group with 2 to 18 C atoms, or a group with formula (II), and R stands for a hydrogen atom, an alkyl group with 1 to 21 C atoms or an alkylene group with 2 to 21 C atoms.
摘要:
The invention describes multiphase lubricant concentrates with enhanced properties to be used in acqueous working fluids from exploratory drilling of soil, containing liquid or solid organic constituents at room temperature with a lubricating effect (O-phase) in addition to emulsifiers which are finely dispersed in a closed aqueous phase (W-phase). The concentrates are characterized by the fact that the system consisting of an oil phase, a water phase and emulsifiers has a phase inversion temperature (PIT) above room temperature and is produced by heating the multiphase system to temperatures equal to/above the PIT and subsequently cooled to smaller PIT values. The invention also relates to the use of such multiphase lubricant concentrates as an additive to water based working fluids in the field of exploratory drilling of soil and further treatment of such drilling.