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1. WO2014161088 - IMPROVED NEUTRALIZATION AND REMOVAL OF ACIDS IN HVAC SYSTEMS THROUGH THE USE OF DRYING AGENTS

Publication Number WO/2014/161088
Publication Date 09.10.2014
International Application No. PCT/CA2014/050331
International Filing Date 02.04.2014
IPC
C23F 14/02 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
14Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
02by chemical means
C09K 5/04 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice-versa
CPC
B65D 1/12
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
1Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
12Cans, casks, barrels, or drums
C09K 15/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
15Anti-oxidant compositions; Compositions inhibiting chemical change
04containing organic compounds
06containing oxygen
C09K 5/041
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice versa
041for compression-type refrigeration systems
C10M 141/02
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
141Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
02at least one of them being an organic oxygen-containing compound
C10M 171/008
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
171Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
008Lubricant compositions compatible with refrigerants
C10M 2201/062
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
2201Inorganic compounds or elements as ingredients in lubricant compositions
06Metal compounds
062Oxides; Hydroxides; Carbonates or bicarbonates
Applicants
  • BRASSCORP LIMITED [CA]/[CA]
Inventors
  • APPLER, Paul Clarence
  • HOMENUIK, Jesse
  • HILL, Norma
  • CRANTON, George E.
Agents
  • RIDOUT & MAYBEE LLP
Priority Data
61/807,47402.04.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED NEUTRALIZATION AND REMOVAL OF ACIDS IN HVAC SYSTEMS THROUGH THE USE OF DRYING AGENTS
(FR) NEUTRALISATION ET ÉLIMINATION AMÉLIORÉES D'ACIDES DANS DES SYSTÈMES DE CHAUFFAGE, VENTILATION ET CONDITIONNEMENT D'AIR (CVCA) EN UTILISANT DES AGENTS ANTI-HYGROSCOPIQUES
Abstract
(EN)
A composition for neutralizing or removing an acid in a refrigeration or air-conditioning system, the composition comprising a) an acid neutralizer or scavenger such as a metal alkoxide, carbodiimide, glycidyl ether, epoxide, alkanolamine, arylamine, overbased metal sulphonates, or an inorganic base (e.g. KOH); and b) a hydrolytic drying agent such as an orthoester (e.g. triethylorthoformate), acetal, epoxide, or a carbodiimide, whereby the water formed by neutralization is removed from the system. Also disclosed is the use of the composition for neutralizing or removing an acid from a refrigeration or air-conditioning system; and a method for neutralizing or removing an acid from the refrigeration or air-conditioning system.
(FR)
La présente invention concerne une composition pour la neutralisation ou l'élimination d'un acide dans un système de réfrigération ou de climatisation, la composition comportant : a) un agent de neutralisation ou de désactivation d'acides tel qu'un alcoxyde métallique, un carbodiimide, l'éther de glycidyle, un époxyde, un alcanolamine, un arylamine, des sulfonates métalliques surbasés, ou une base organique (par exemple, l'hydroxyde de potassium) ; et b) un agent anti-hygroscopique hydrolytique tel qu'un orthoester (par exemple, le triéthylorthoformate), l'acétal, un époxyde, ou un carbodiimide, permettant l'élimination de l'eau formée par la neutralisation depuis le système. L'invention concerne également l'utilisation de la composition pour la neutralisation ou l'élimination d'un acide à partir d'un système de réfrigération ou de climatisation et un procédé pour la neutralisation ou l'élimination d'un acide à partir d'un système de réfrigération ou de climatisation.
Also published as
Latest bibliographic data on file with the International Bureau