Chelating Macroporous Weak-Acid Cation Resin - Isothiouronium Group for Mercury & Precious Metals Separation

• Formula: R -CH2-S-C=Nh-Nh2
• Molecular Principal Chain: Carbon Chain Polymer
• Color: Milky White Opaque
• Type of Transport Packaging as Shipped: Bag-in-Pallet; Bulk Bag; Vacuum Bag
• Factory Ionic Form: H+
• Resin Service Life: 2-3 Years
• Model NO.: D740
• After-Sales Warranty: 3 Years
• Non-Hazardous Chemicals Shipping: True
• Certificate: ISO9001:2015; Wqa; TUV; SGS; MSDS
• Type of Shipping: Air Parcel for Sample; Sea Transport for Orders
• Nominated Brand Packing Service: Offered
• Transport Package: 48bags/Pallet
• Specification: 25Liters/Bag
• Trademark: KP
• Origin: Shanghai
• HS Code: 3914000000
• Production Capacity: 3000t/Year

Product Description

Company Profile

Product Description

Chelating Macroporous Styrene Series
  Weak Acid Isothiouronium Group Cation Exchange Resin
     for Selective Adsorption of Free Mercury(Hg) and Precious Metals(Au,Pt,Pd,etc)

PRODUCT DATA SHEET:

D740 is a macroporous styrene-based ion exchange resin containing isothiouronium as chelating functional groups. Attributed to its peculiar chelating groups, large porosity and firm structure, D740 performs excellent chemical stability in larger capacity in selective removal of mercury(Hg) and exclusive separation of precious metals as gold(Au), Platinum(Pt) or Palladium(Pd), regardless of being surrounded by heavy metals as sodium(Na), alkaline-earth metals(ie.Ca, Mg), or ferrous(Fe) & copper(Cu).
Due to its strong affinity to free mercury, the chelating groups tightly bind to divalent Hg ions to form highly stable complexes, D740 is specialized in removing dissolved mercury salts in wastewater. Besides, it is also widely being used for precious metals recovery from rinse water in electroplating and electronics industries as well as in hydrometallurgy such as gold separation from acid solutions. 
Please note that D740 is designed as a hard-to-regenerate model for its rather strong adsorption chelating groups and least elutable features, and suggested being operated under systems in acid solutions.

PROPERTIES:
 

TECH-INDEXES:	SPECIFICATIONS:
Matrix:	Styrene-divinylbenzene copolymer
Functional groups:	^-CH2-S-C=NH-NH2 (iminediacetic acid)
Physical form:	Milky white opaque spherical beads
Ionic form as shipped:	H^+form
Moisture retention(%):	48 to 58%
Specific gravity:	1.11
Mercury(Hg) adsorption capacity:	≥150g/L
Platinum(Pt) or Palladium(Pd) adsorption capacity:	≥60g/L
Total bulk exchange capacity:	≥1.2mmol/ml
Moisture true density:	1.10~1.16g/mL
Moisture bulk density:	0.70~0.76g/mL
Particle size:	0.45~1.25mm ≥95℅
Uniformity coefficient:	≤1.6
Integrated beads ratio after grinding test:	≥95℅
Temperature Limit:	60 °C (140.0 °F)

 

SUGGESTED OPERATING CONDITIONS:

 

Maximum operating temperature:	80°C
Minimum bed depth:	1000mm
PH range:	0-7
Service flow rate:	5~30 BV*/h
Backwash linear velocity:	4~10 m/h

Regenerant:		HCl	H2SO4
Level(Counted by 100%):		50-100g/L	70~150g/L
Concentration:		4~8℅	10~30℅
Flow rate:		1~3 BV*/h	0.5~2 BV*/h
Minimum contact time:                                                                30min
Slow rinse:		2BV at regeneration flow rate
Fast rinse:		4~8 BV at service flow rate
*1 BV(Bed Volume)= 1m^3 solution per m^3 resin

 

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Application Fields

Factory Overview

 

QC & QA System

Pre-sales & After-sales VAS

 

Type of Packing & Shipping

1)  Bags-on-Pallet
 

2)  Bulk Bag-on-Pallet

3)  Packet-in-Box-on-Pallet

 

Courier Services for Air Freight/Express(for sample proofing)
FedEx(TNT), UPS,DHL(BLUE DART), EMS, SF, ZTO, JD Logistics, Aramex,etc   

Shipping Services for Sea Freight
ONE, MSC, MSK, COSCO, CMA, APL, RCL, KMTC, ZIM, YML, OOCL,MCC,ESL

PI Quotation Validity: 15days

Accepted Trading Incoterms: CIF(Insurance&freight fees included)

Payment terms: T/T Payment Received Before Shipment

Port of Loading: Shanghai Port, China