B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/008 (2006.01) C01D 3/08 (2006.01)
Patent
CA 2753326
The invention relates to a method for separating insoluble components from sylvinite, wherein the sylvinite is suspended in a saturated salt brine, a coagulating agent is added to the suspension, and a foaming agent is then added to the composition thus obtained, said foaming agent comprising and ether and/or ester, wherein a) the ethers of formula 1 correspond to R-O-R' (1), where R is a linear or branched alkyl or alkenyl groups having 2 to 30 carbon atoms and R' is a linear or branched alkyl or alkenyl groups having 1 to 30 carbon atoms; b) the esters are derived from monovalent or multivalent alcohols having 1 to 30 carbon atoms (alcohol radicals); or c) the ethers and/or esters are cyclic, wherein the ring size is 6 to 30 carbon atoms.
L'invention concerne un procédé pour séparer des constituants insolubles de la sylvinite, en ce sens que la sylvinite est mise en suspension dans une solution saline saturée, un agent floculant est ajouté à la suspension et un agent moussant qui contient au moins un éther et/ou ester est alors ajouté à la composition ainsi obtenue, a) les éthers de la formule 1 correspondant à R- O- R' (1) où R représente des groupes alkyle ou alcényle linéaires ou ramifiés comportant de 2 à 30 atomes de carbone et R1 représente des groupes alkyle ou alcényle linéaires ou ramifiés comportant de 1 à 30 atomes de carbone, b) les esters dérivant d'acides carboxyliques monovalents ou plurivalents comportant de 2 à 30 atomes de carbone (reste acide) et d'alcools monovalents ou plurivalents comportant de 1 à 30 atomes de carbones (reste alcool), ou c) les éthers et/ou esters étant cycliques, la taille des noyaux comportant de 6 à 30 atomes de carbone.
Clariant Finance (bvi) Limited
Fetherstonhaugh & Co.
LandOfFree
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