A kind of iron mineral inhibitor and preparation method thereof

A production method and inhibitor technology, applied in solid separation, flotation, etc., can solve the problems of lower tailings grade, weak suppression ability, and weak action ability of fine-grained iron minerals, so as to reduce flotation tailings, The effect of strengthening the effective effect and increasing the ability of action
CN106824550BActive Publication Date: 2018-12-04鞍山市津翔工业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
鞍山市津翔工业有限公司
Publication Date
2018-12-04
Patent Text Reader

Abstract

The invention discloses a production method of an iron mineral inhibitor. The production method comprises the following steps: step I, enabling a mixture of following components in parts by weight to react for 1 to 4 hours at 60 to 90 DEC to obtain an additive (1): 100 parts of corn starch, cassava starch or wheat starch, 0.5 to 4.0 parts of sodium ethoxide or sodium hydroxide and 5 to 15 parts of sodium chloroacetate; step II, enabling a mixture of following components in parts by weight to react for 3 to 6 hours at 50 to 80 DEG C to obtain an additive (2): 100 parts of the additive (1) obtained in the step I, 5 to 15 parts of ethylene oxide, and 0.2 to 1.0 part of sodium carbonate or sodium acetate; and step III, enabling a mixture of the following components in parts by weight to react for 1 to 3 hours at 30 to 60 DEG C to obtain an inhibitor finished product: 100 parts of the additive (2) obtained in the step II, 1 to 12 parts of sodium periodate or hydrogen peroxide, and 0.2 to 1.0 part of ferrous sulfate or cupric sulfate.
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Description

technical field

[0001] The invention relates to an iron mineral inhibitor and a preparation method thereof, belonging to the technical field of ore dressing agents. Background technique

[0002] The inhibitors used in iron ore flotation mainly include small molecule inhibitors and macromolecule inhibitors. Small molecule inhibitors include water glass, sodium hexametaphosphate, tartaric acid, etc.; macromolecular inhibitors include starch, carboxymethyl cellulose, sodium humate, dextrin, and polyacrylamide. The most widely used of these inhibitors is corn starch. When using corn starch to inhibit iron minerals, there are often problems such as high tailings. The reason is that cornstarch has a weak ability to act on fine-grained iron minerals, which makes it easy for fine-grained iron minerals to enter the tailings, resulting in high iron grades and low iron recovery rates. Contents of the invention

[0003] The purpose of the present invention is to provide a kind of pr...

Claims

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