News release

September 26, 2023

Sales launch of a new reagent product “CPs-HP50”,
a precious metal scavenger
Realizing high-efficient absorption treatment of precious metals
with different valences contributing to precious metal recycle
N.E. CHEMCAT CORPORATION, (Head office: Minato-ku, Tokyo; President/Representative Director Susumu
Endo) has launched the reagent sales of a new product “CPs-HP50” from Precious Metal Scavenger CPsseries.
CPs-HP50 is a silica powder scavenger combining the characteristics of thiol-based scavenger and aminebased scavenger. This product allows high-efficient absorption treatment of a variety of precious metals
contained in solutions after catalytic reactions of precious metals.
Three characteristics of this product
1: High absorption removal rate for a variety of precious metals
CPs-HP50 allows you to absorb and remove rare metals including palladium (Pd), platinum (Pt), rhodium(Rh), or ruthenium (Ru) in organic solvents such as toluene, methylene chloride, and ethanol.
MetalType

Catalyst

Solvent

Adsorption removal
rate

Pd

Pd(OAc)2

THF> 99.9%Pd

PdCl2(dppf)

CH2Cl2

73.7%

Pd[Pd2(dba)3]・xdba

CH2Cl2> 99.9%Pt

Karstedt’s catalyst

EtOH

99.2%

Rh

[Rh(acac)(CO)2]

Toluene> 99.9%Ru[RuCl2(p -cymene)]2

CH2Cl2＞ 97.0%2: Single product to absorb precious metals with various valences
In contrast to conventional absorption of precious metals where different scavengers of thiol-based andamine-based scavengers have to be used according to valence of the metal, this product can achieve highrate of absorption removal in mix solvent containing precious metals with differing valences. This will lead to
reduction in man-hour lowering your cost and time.

3: Can be used in columns
With a good permeability, CPs-HP50 can be used in columns. In our test, a solution
containing palladium with a concentration of 975ppm was added and circulated in asyringe filled with this product and the concentration lowered to less than 1ppm.
With these characteristics, CPs-HP50 supports removal of trace amount of precious metalfrom chemical compounds which has seen increasing demands in pharmaceuticalproduction due to the stricter regulations of elemental impurities guideline.
Moreover, CPs-HP50 can be used for recycling of precious metal in fine-chemical
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production of for example agricultural chemicals or electronics materials leading to cost reduction throughresource cycling and reuse of rare precious metals.
■Product image■About N.E. CHEMCAT CORPORATIONFounded in 1964, N.E. CHEMCAT CORPORATION is engaged in the development, manufacturing, anddistribution of chemical catalysts, auto exhaust catalysts (including three-way catalysts and diesel autocatalysts), and fuel cell catalysts, and collection/refinement of precious metal catalysts.
Head Office: 27th floor, World Trade Center Building South Tower, 2-4-1 Hamamatsucho, Minato-ku, Tokyo
105-5127
Numazu Plant: 678 Ipponmatsu, Numazu-City, Shizuoka-Prefecture 410-0314
Tsukuba Plant: 25-3, Kohshindaira, Bando-City, Ibaraki-Prefecture 306-0608■Media Inquiries:
N.E. CHEMCAT CORPORATION (Public Relations)E-mail: info-pr@ne-chemcat.co.jp■Inquiries on this reagent sales (contact form):
https://jljb.f.msgs.jp/webapp/form/23955_jljb_5/index.do

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