Process　Introduction:　Use　nitric　acid　as　decomposition　agent　to　decompose　borax　ore,　first　produce　boric　acid　through　filtration,　purification,　cooling,　crystallization,　dehydrating,　washing　and　drying,　then　dispose　boric　acid　mother　liquid　to　get　sodium　nitrate.　Recycle　the　secondary　mother　liquid　obtained　from　separation　of　sodium　nitrate　in　acidolysis　batching.　Mother　liquid　disposing　process　does　not　need　evaporation.

Technical　Advancement:　The　common　practice　is　to　use　nitric　acid　to　dispose　industrial　borax　and　prepare　boric　acid　and　by-product　sodium　nitrate,　and　the　cost　is　too　high.　This　process　takes　natural　borax　ore　as　raw　material　to　produce　boric　acid　and　by-product　sodium　nitrate,　substantially　reducing　the　production　cost.　At　present,　China　has　not　had　the　report　concerning　preparing　boric　acid　with　single-step　method　by　using　nitric　acid　to　dispose　natural　borax　ore.

Market　Prospect:　Chinese　total　annual　demand　for　boric　acid　is　above　310,000t,　domestic　boric　acid　is　constrained　by　quality　factor,　its　application　is　limited　in　solar　energy,　medicine　glass　and　other　industries,　and　domestic　market　demand　for　high　quality　boric　acid　has　increased　year　by　year.　The　present　high　quality　boric　acid　is　mainly　imported,　having　relatively　high　sales　price,　stable　market,　considerable　profits　and　broad　prospect.

Product　Quality:　Boric　acid　is　in　conformity　with　GB538-2006　standard;　and　sodium　nitrate　is　in　conformity　with　GB/t　4553-2002　standard.

Equipment　Investment:　5000t/a　is　2.8　million　Yuan,　and　the　scale　can　be　determined　according　to　the　actual　situation.　

Environmental　Protection:　Particular　environmental　protection　measures　have　been　taken,　so　the　production　process　does　not　discharge　effluent　or　exhaust　gas.　The　generated　boric　sludge　can　be　comprehensively　utilized,　so　it　does　not　have　obvious　impact　on　the　environment.

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.