Yoneyama Kagaku Kogyo Kaisha, Ltd.

Aerial Shoot

Introduction

  • We have been producing high-performance chemicals using crystallization technology since 1918.
  • We have achieved production of stable quality through the use of quantitative methods in our manufacturing process.
  • We produce phosphates, acetates, chlorides and sulfates which are conformableto the Japanese standards for quasi-drug ingredients typically used for cosmetics, shampoos, body soaps, and hair care products.

Most Competitive Products

History

1918 Established in Osaka prefecture, Japan.
1962 Ashikaga Plant was created.
1966 Ashikaga Plant starts producing Ammonium acetate.
2001 Company acquires ISO 9001 certification (all business units).

Company Overview (as of March 31, 2020)

Company name Yoneyama Kagaku Kogyo Kaisha, Ltd.
Head office 5-2-18 Nishitenma, Kita-ku, Osaka, 530-0047, Japan
Date of establishment July 10, 1918
Capital JPY 24 million
Number of employees 90
Location Head office: Osaka
Branch offices: Tokyo, Nagoya
Plants: Osaka, Ashikaga
Technical department : Osaka
Affiliates: Suita (Osaka)

Plants

Plant location map

Osaka Plant

  • Phosphates
  • Sulfates

Ashikaga Plant

  • Acetates
  • Boric acid
  • Ammonium salts

Other Plants

  • p-Nitrobenzoic acid
  • Zinc sulfate
  • Potassium tetraborate

" End-User’s Laboratory "

Equipment for end-user's pilot and/or small-scale production using our excellentcrystallization technology

Summary

  • Production volume 100 - 1000 kgs.
  • We have facilities that can develop chemicals that meet the standards for reagent special grade, food additives, and capacitors.
  • Using the manufacturing data accumulated in the development process, you can move to mass production accurately and quickly.

Main Equipment

Device Name Capacity Quantity Material made of Comment
Feed tank 3,000 L 1 GL Room temperature to 120 degree C., full vacuum to atmospheric pressure
3,000 L 1 SUS Room temperature to 120 degree C., full vacuum to atmospheric pressure
Crystallization tank 3,000 L 1 SUS Room temperature to 120 degree C., full vacuum to atmospheric pressure
Filter 250mm x 5 1 SUS Cartridge type
80 L, 0.2 m2 1 SUS Nutsche type
Centrifuge 42 inches, 165 L 1 SUS Fully open, bottom ejection type
Conical dryer 300 L 1 SUS 40 to 120 degree C., full vacuum to atmospheric pressure
Loading chamber 18 m2 1 SUS Positive pressure control, HEPA filter
Kneader 50 L 1 SUS Room temperature to 120 degree C., full vacuum to atmospheric pressure

Case Study

1. Purification of water-soluble compounds

This laboratory’s purification process removes impurities for users in pharmaceutical applications who require high purity products. "Purification of water-soluble compounds" is our specialty, and we often undertake requests for such purification in small lots (100 - 500 kgs.).

2. Purification and reduction of Fe in ammonium organic acid for plating

We have reduced impurities in ammonium organic acid, which is used as a complexing agent and buffer, by an impurity removal process + neutralization reaction + crystallization method. As a result, we ere able to crystallize "high purity" and "low Fe value" crystals.