I.　Process　Introduction

Mix　szaibelyite　ore　powder　with　boric　acid　mother　liquid　and　react　with　sulfuric　acid　in　reaction　tank,　achieve　mixed　solution　of　boric　acid　and　magnesium　sulfate　through　filtration,　then　achieve　industrial　boric　acid　through　cooling,　crystallization,　separation,　washing,　dehydrating,　drying　and　packaging.　Make　boric　acid　mother　liquid　react　with　reactant,　achieve　new-type　ammonium　magnesium　compound　fertilizer　-　ammonium　sulfate　magnesium　through　cooling,　crystallization,　separation,　washing　and　packaging.　It　is　also　feasible　to　purify　boric　acid　mother　liquid　and　magnesium　sulfate　heptahydrate　and　use　it　to　prepare　high　value-added　magnesium　salt.　Boric　acid　product　has　pure　white　appearance,　uniform　granularity　and　quality　indicator　in　conformity　with　the　standard　of　products　of　the　same　category　in　Turkey.　Ammonium　sulfate　magnesium　contains　nitrogen　8%,　elemental　magnesium　6.6%,　and　elemental　boron　1%,　which　is　high　quality　fast-thawing　new-type　compound　fertilizer.

II.　Technical　Advancement

Proprietary　technology.　It　has　been　a　blank　technology　that　uses　single-step　method,　which　takes　sulfuric　acid　as　decomposition　agent,　to　dispose　salt　lake　type　boron　ore　and　directly　produce　high　quality　boric　acid　with　product　quality　in　conformity　with　international　standard.　This　process　aims　at　leading　edge　production　technology　of　international　boric　acid,　thoroughly　solving　the　problems　of　low　yield　and　poor　quality　when　using　single-step　method　to　dispose　szaibelyite　ore　and　prepare　boric　acid,　and　occupying　domestic　leading　position　in　decolorization,　purification,　boron　magnesium　separation,　quality　control　and　cost　control.　Product　quality　(from　appearance　to　internal　quality)　can　reach　the　standard　of　products　of　the　same　category　in　Turkey.　Byproducts　are　high　quality　nitrogen,　magnesium　and　boron　agricultural　compound　fertilizer.　The　additional　value　is　higher　than　that　of　magnesium　sulfate　heptahydrate,　and　the　expected　market　price　is　above　1,500　Yuan/t.

III.　Market　Prospect

Chinese　total　annual　demand　of　boric　acid　is　above　300,000t.　Total　capacity　of　domestic　production　can　reach　300,000t,　but　actual　output　in　2009　was　only　130,000t.　Because　of　constraint　of　technical　conditions　and　product　quality,　its　application　is　limited　in　solar　energy,　medicine　glass,　fine　boride,　boron-containing　new　material　and　other　fields,　and　60%　of　domestic　high-end　market　is　controlled　by　the　products　of　American,　Turkey　and　Russia.　At　present,　the　market　price　of　imported　high　quality　boric　acid　is　300-400　Yuan/t　higher　than　factory　price　of　domestic　industrial　grade　boric　acid.　Therefore,　development　of　high　quality　boric　acid　production　is　in　conformity　with　the　market　demand.　In　addition,　although　magnesium　sulfate　heptahydrate　has　been　greatly　applied　in　agricultural　field　in　recent　years,　because　of　its　single　content　and　relatively　low　price,　the　present　market　price　is　within　400-600　Yuan/t.　Successful　preparation　of　ammonium　magnesium　sulfate　compound　fertilizer　will　enable　nutrient　content　of　magnesium　sulfate　to　be　diversified.　The　market　prospect　is　broad.

IV.　Technical　Sources

Autonomous　research　and　development,　and　industrialization　has　been　realized.

V.　Product　Quality

Boric　acid:　is　in　conformity　with　the　standard　of　products　of　the　same　category　in　Turkey.　

Item	Indicator
Boric　acid　　　　　　　≥	99.9
Water　insoluble　　　　≤	0.010
Sulfate　　　　　　≤	0.05
Chloride　　　　　　≤	0.010
Iron　　　　　　　≤	0.0008

Note:　Sulfate　content　in　the　product　is　50%　lower　than　international　premium　grade　product,　and　iron　content　is　20%　lower　than　international　premium　grade　product.

VI.　Equipment　Investment

5000t/a　is　3　million　Yuan　(not　containing　mother　liquid　comprehensive　utilization　project),　and　the　scale　can　be　determined　according　to　the　actual　situation.

VII.　Environmental　Protection　

Comprehensive　utilization　of　boric　sludge　and　mother　liquid　does　not　discharge　waste　residue,　effluent　or　exhaust　gas.

IX.　Form　of　Cooperation　and　Service　Method:　

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.