The　technology　of　using　ulexite　ore　as　raw　material　to　prepare　boric　acid　and　borax　developed　by　our　Institute　in　2001　is　applicable　to　domestic　and　imported　ulexite　ore,　which　was　initially　industrialized　in　Qinghai　in　2001,　and　it　is　mature,　advanced　and　reliable.

Ulexite　has　molecular　formula　NaCa[B3B2O7(OH)4]·6H2O,　relative　molecular　mass　405,　theoretical　content　of　B2O3　43%,　actual　content:　Qinghai　Big　Caidan　Lake　ore　8%-16%,　Small　Caidan　Lake　ore　16%-25%,　Tibet　Ali　ore　25%-27%,　and　South　America　ore　30%-40%.　It　is　suitable　to　produce　borax　with　atmospheric　method　and　produce　high　quality　boric　acid　with　single-step　method.　In　particular,　production　of　boric　acid　is　featured　by　simple　flow,　little　acid　volume　consumption,　and　good　product　quality　that　can　reach　international　standard.

According　to　annual　production　of　1,0000t　boric　acid,　only　equipment　investment　is　3　million　Yuan.　Main　production　equipment　include　acidolysis　system,　filtration　system,　crystallization　and　separation　system.　Product　quality　can　reach　the　standard　of　products　of　the　same　category　in　Chile.　Comprehensive　cost　of　product/t　is　(ore　B2O3　is　calculated　at　25%)　about　4,600　Yuan　according　to　the　present　price　of　raw　material,　and　B2O3　yield　is　96%.

Our　Institute　established　industrialized　production　device　with　annual　production　of　3,000t　high　quality　boric　acid,　and　the　applied　raw　material　is　ulexite　ore.　Welcome　to　investigate　our　Institute.

Please　call　us　to　know　the　details　of　the　technology　of　using　ulexite　ore　as　raw　material　to　prepare　borax　pentahydrate.

Tel:　0377-63129838　　　18203855063

E-mail:　nypengmei@126.com

Website:　www.nypengmei.com