Provided is a mineral processing method that can efficiently separate a copper mineral and a molybdenum mineral. A mineral processing method includes a conditioning step of adding a disulfite to a mineral slurry containing a copper mineral and a molybdenum mineral and a flotation step of performing flotation using the mineral slurry after the conditioning step. By selectively enhancing hydrophilicity of the copper mineral with the disulfite, the hydrophilicity between the copper mineral and the molybdenum mineral can be differentiated. Thus, the molybdenum mineral can be selectively floated, and the copper mineral and the molybdenum mineral can be efficiently separated.

The disclosure relates to mineral processing, and more particularly to a copper(II)-ammonia complex ion sulfidization activator, and its preparation and application. A molar ratio of NH.sub.3 to Cu.sup.2+ in the active ingredient of the copper(II)-ammonia complex ion sulfidization activator is 2:1-4:1. The preparation method includes: dropwise adding an ammonia solution to a copper salt solution; and adjusting the mixture to pH 6-7.2 with dilute sulfuric acid to obtain the copper(II)-ammonia complex ion sulfidization activator. During the sulfidization flotation for the copper oxide ore, the copper(II)-ammonia complex ion sulfidization activator is added and mixed uniformly with the ore slurry prior to the introduction of the sulfidizing agent.

A wide-size-fraction flotation system and process includes feeding coal slime to be floated into a stirrer, adding water to the floating coal slime in the stirrer, stirring, then feeding same into a grading cyclone through a first feeding pump for pre-grading; after grading of the coal slime in the grading cyclone, feeding overflow in the grading cyclone into a flotation column through a second feeding pump for flotation, discharging flotation tailings through an underflow port of the flotation column, collecting flotation concentrates through an overflow port of the flotation column and feeding same into a bubble generator through a fourth feeding pump, and the flotation concentrates passing through the bubble generator and being fed from the bottom of a hydraulic flotation machine; and feeding underflow in the grading cyclone into the hydraulic flotation machine through a third feeding pump, for flotation and recovery.

The disclosure is directed to a sulfidizing agent obtainable by mixing M.sub.yS.sub.x and ZSH in a weight ratio of from about 90:10 to about 10:90, wherein M is chosen from Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+, NH.sub.4.sup.+, Mg.sup.2+ and Ca.sup.2+, y is about 1 or about 2, x is from about 1.1 to about 5, and Z is independently chosen from Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+ and NH.sub.4.sup.+, and a process for using the sulfidizing agent in the recovery of one or more metal ores and/or polymetallic minerals from gangue.

An aqueous formulation for use in slick water fracturing, water treatment, enhanced oil recovery, drilling, erosion control, dust abatement or mining flotation operations includes (i) one or more than one polymer (AA) which is a water-soluble polymer; (ii) water; (iii) one or more than one quaternary ammonium compound; and (iv) one or more than one scale inhibitor.

Provided is a method for selecting arsenic-containing minerals.

A peptide comprising an amino acids sequence according to the following formula:

(T,S,N,Q)-(L,I,V,F,A)-(E,D)-(R,K,N,M,D,C,P,Q,S,E,T,G,W,H,Y)-(L,I,V,F,A)-(R,K,N,M,D,C,P,Q,S,E,T,G,W,H,Y)-(L,I,V,F,A)-(L,I,V,F,A)-(L,I,V,F,A)-(R,H,K)-(T,S,N,Q)-(T,S,N,Q)

wherein one amino acid is respectively selected from each group defined by paired parentheses.

The present invention relates to a method for the selective recovery of valuable metal minerals in a froth floatation process using a non-oxidizing biocide.

The disclosure relates to mineral processing, and more particularly to a copper(II)-ammonia complex ion sulfidization activator, and its preparation and application. A molar ratio of NH3 to Cu.sup.2+ in the active ingredient of the copper(II)-ammonia complex ion sulfidization activator is 2:1-4:1. The preparation method includes: dropwise adding an ammonia solution to a copper salt solution; and adjusting the mixture to pH 6-7.2 with dilute sulfuric acid to obtain the copper(II)-ammonia complex ion sulfidization activator. During the sulfidization flotation for the copper oxide ore, the copper(II)-ammonia complex ion sulfidization activator is added and mixed uniformly with the ore slurry prior to the introduction of the sulfidizing agent.

A process for separating clean water which has an impurities content of less than 100 ppm from waste materials such as farm manure is disclosed. In a first step, a plate separator splits the waste material stream into a first effluent fraction and a first solids fraction. The first solids fraction then undergoes two stages of pressing to increase the solids contents to about 30 to 40 percent which makes it suitable for granulation or pelletizing. The first effluent fraction is treated in successive stages with various chemical agents resulting in the removal of most of the solids and inorganic impurities from the effluent to achieve drinkable water purity.

The disclosure is directed to a sulfidizing agent obtainable by mixing M.sub.yS.sub.x and ZSH in a weight ratio of from about 90:10 to about 10:90, wherein M is chosen from Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+, NH.sub.4.sup.+, Mg.sup.2+ and Ca.sup.2+, y is about 1 or about 2, x is from about 1.1 to about 5, and Z is independently chosen from Li.sup.+, Na.sup.+, K.sup.+, Rb.sup.+, Cs.sup.+ and NH.sub.4.sup.+, and a process for using the sulfidizing agent in the recovery of one or more metal ores and/or polymetallic minerals from gangue.