Coating solution
AssigneeNittetsu Mining Co., Ltd.
InventorsHiromichi Matsumoto, Shinichi Ogura, Ken Shinoda, Toru Hosi
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Abstract
Provided is a coating solution for forming a dust collecting layer, wherein the coating solution can be applied uniformly, and the formed dust collecting layer does not easily peel off from a filter element material, and allows to collect fine powder products having a small particle size. The coating solution is for forming a dust collecting layer in a dust collecting filter, and contains a fine powder, dopamine hydrochloride, and an adhesive.
Claims4
A coating solution for forming a dust collecting layer in a dust collecting filter, comprising:
- (i) a powder consisting of organic fine particles or inorganic fine particles,
- (ii) dopamine hydrochloride, and
- (iii) a water-soluble adhesive,
- wherein the powder is any one of selected from the group consisting of silica, alumina and hematite,
- wherein an average particle size D50 of the powder is 3.7 μm to 30.0 μm, and
- wherein the coating solution is produced by the following in this order:
- (1) pouring a powder consisting of organic fine particles or inorganic fine particles and a water-soluble adhesive in a buffer solution,
- (2) stirring the mixture to homogeneity, and then
- (3) adding dopamine hydrochloride.
A method for producing a coating solution for forming a dust collecting layer in a dust collecting filter, comprising the following in this order:
- (1) pouring a powder consisting of organic fine particles or inorganic fine particles and a water-soluble adhesive in a buffer solution,
- (2) stirring to homogeneity the mixture, and then
- (3) adding dopamine hydrochloride,
- wherein the powder is any one of selected from the group consisting of silica, alumina and hematite, and
- wherein an average particle size D50 of the powder is 3.7 μm to 30.0 μm.
Dependencies are inferred from the claim text.