I.　Process　Introduction

Main　raw　materials　used　in　this　process　are　nickel-containing　solid　waste,　nickel　catalyst　and　electroplating　liquid.　Main　process　procedures　include　acidolysis,　edulcoration,　filtration,　precipitated,　neutralizing,　edulcoration,　filtration,　concentration,　crystallization,　separation,　washing,　dehydrating　and　drying.

II.　Technical　Advancement

The　yield　is　85-97%,　and　product　quality　is　in　conformity　with　HG/t　2824-1997　industrial　nickel　sulfate　standard.

III.　Market　Prospect

The　product　is　mainly　applied　in　electroplating,　battery,　paint,　fuel,　nickel　salt　and　other　industries,　having　optimistic　market　prospect.

IV.　Technical　Sources

Autonomous　research　and　development,　and　industrialization　technology.

V.　Product　Quality

The　product　quality　is　in　conformity　with　HG/t　2824-1997　industrial　nickel　sulfate　standard.

VI.　Investment　Scale

According　to　annual　production　of　500t　industrial　nickel　sulfate,　the　equipment　investment　is　1.2　million　Yuan.　The　scale　can　be　determined　according　to　the　actual　situation,　and　selected　by　constructor.

VII.　Environmental　Protection　

Small　quantity　of　waste　residue　is　generated.

VIII.　Economic　Benefits

Comprehensive　production　cost　is　11,300　Yuan/t,　factory　price　varies　within　25,000-30,000　Yuan/t　according　to　different　varieties　and　grades.

IX.　Form　of　Cooperation

Technical　transfer.　Taking　responsibility　for　process　flow　design,　supporting　equipment　of　standard　equipment,　non-standard　equipment　manufacture　design,　equipment is　plane　layout　design,　equipment　installation　design,　pipe　network　design,　equipment　installation　guidance,　equipment　commissioning,　production　commissioning,　training　for　production　engineers,　analysis　staff　and　technicians,　process　operation　specifications,　raw　material　and　product　analysis　method,　and　preparation　of　intermediate　control　analysis　method;　ensuring　output,　yield　and　quality　to　reach　the　standard;　and　undertaking　turn-key　projects.